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<h2><span class="refentrytitle"><a name="PgmImage.top_of_page"></a>PgmImage</span></h2>
<p>PgmImage — An image drawable supporting various media.</p>
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<a name="PgmImage.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <pgm/pgm.h>
enum <a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment">PgmImageAlignment</a>;
enum <a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType">PgmImageLayoutType</a>;
enum <a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType">PgmImageInterpType</a>;
enum <a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a>;
enum <a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a>;
<a class="link" href="PgmImage.html#PgmImageFile" title="PgmImageFile">PgmImageFile</a>;
<a class="link" href="PgmImage.html#PgmImageBuffer" title="PgmImageBuffer">PgmImageBuffer</a>;
<a class="link" href="PgmImage.html#PgmImageGstBuffer" title="PgmImageGstBuffer">PgmImageGstBuffer</a>;
<a class="link" href="PgmImage.html#PgmImageSystemBuffer" title="PgmImageSystemBuffer">PgmImageSystemBuffer</a>;
<a class="link" href="PgmImage.html#PgmImagePixbuf" title="PgmImagePixbuf">PgmImagePixbuf</a>;
enum <a class="link" href="PgmImage.html#PgmImageStorageType" title="enum PgmImageStorageType">PgmImageStorageType</a>;
union <a class="link" href="PgmImage.html#PgmImageData" title="union PgmImageData">PgmImageData</a>;
<a class="link" href="PgmImage.html#PgmImage-struct" title="PgmImage">PgmImage</a>;
<a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * <a class="link" href="PgmImage.html#pgm-image-new" title="pgm_image_new ()">pgm_image_new</a> (void);
<a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * <a class="link" href="PgmImage.html#pgm-image-new-from-file" title="pgm_image_new_from_file ()">pgm_image_new_from_file</a> (const <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"
>gchar</a> *filename,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> max_size);
<a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * <a class="link" href="PgmImage.html#pgm-image-new-from-pixbuf" title="pgm_image_new_from_pixbuf ()">pgm_image_new_from_pixbuf</a> (<a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> *pixbuf);
<a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * <a class="link" href="PgmImage.html#pgm-image-new-from-buffer" title="pgm_image_new_from_buffer ()">pgm_image_new_from_buffer</a> (<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> stride,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> size,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> data);
<a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * <a class="link" href="PgmImage.html#pgm-image-new-from-image" title="pgm_image_new_from_image ()">pgm_image_new_from_image</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *src_image);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-from-file" title="pgm_image_set_from_file ()">pgm_image_set_from_file</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
const <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"
>gchar</a> *filename,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> max_size);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-from-pixbuf" title="pgm_image_set_from_pixbuf ()">pgm_image_set_from_pixbuf</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> *pixbuf);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-from-buffer" title="pgm_image_set_from_buffer ()">pgm_image_set_from_buffer</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> stride,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> size,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> data);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-from-gst-buffer" title="pgm_image_set_from_gst_buffer ()">pgm_image_set_from_gst_buffer</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> stride,
GstBuffer *buffer);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-from-system-buffer" title="pgm_image_set_from_system_buffer ()">pgm_image_set_from_system_buffer</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> system_buffer);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-from-image" title="pgm_image_set_from_image ()">pgm_image_set_from_image</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *src_image);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-to-pixbuf" title="pgm_image_to_pixbuf ()">pgm_image_to_pixbuf</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> **pixbuf);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-clear" title="pgm_image_clear ()">pgm_image_clear</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-storage-type" title="pgm_image_get_storage_type ()">pgm_image_get_storage_type</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageStorageType" title="enum PgmImageStorageType">PgmImageStorageType</a> *storage);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-system-buffer-lock" title="pgm_image_system_buffer_lock ()">pgm_image_system_buffer_lock</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-system-buffer-unlock" title="pgm_image_system_buffer_unlock ()">pgm_image_system_buffer_unlock</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-mapping-matrix" title="pgm_image_set_mapping_matrix ()">pgm_image_set_mapping_matrix</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="pigment-PgmLinearAlgebra.html#PgmMat4x4" title="PgmMat4x4">PgmMat4x4</a> *mapping_matrix);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-mapping-matrix" title="pgm_image_get_mapping_matrix ()">pgm_image_get_mapping_matrix</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="pigment-PgmLinearAlgebra.html#PgmMat4x4" title="PgmMat4x4">PgmMat4x4</a> **mapping_matrix);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-alignment" title="pgm_image_set_alignment ()">pgm_image_set_alignment</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment">PgmImageAlignment</a> align);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-alignment" title="pgm_image_get_alignment ()">pgm_image_get_alignment</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment">PgmImageAlignment</a> *align);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-layout" title="pgm_image_set_layout ()">pgm_image_set_layout</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType">PgmImageLayoutType</a> layout);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-layout" title="pgm_image_get_layout ()">pgm_image_get_layout</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType">PgmImageLayoutType</a> *layout);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-interp" title="pgm_image_set_interp ()">pgm_image_set_interp</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType">PgmImageInterpType</a> interp);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-interp" title="pgm_image_get_interp ()">pgm_image_get_interp</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType">PgmImageInterpType</a> *interp);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-wrapping" title="pgm_image_set_wrapping ()">pgm_image_set_wrapping</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> wrap_s,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> wrap_t);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-wrapping" title="pgm_image_get_wrapping ()">pgm_image_get_wrapping</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> *wrap_s,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> *wrap_t);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-aspect-ratio" title="pgm_image_set_aspect_ratio ()">pgm_image_set_aspect_ratio</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> numerator,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> denominator);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-aspect-ratio" title="pgm_image_get_aspect_ratio ()">pgm_image_get_aspect_ratio</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *numerator,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *denominator);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-border-width" title="pgm_image_set_border_width ()">pgm_image_set_border_width</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> width);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-border-width" title="pgm_image_get_border_width ()">pgm_image_get_border_width</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> *width);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-border-inner-color" title="pgm_image_set_border_inner_color ()">pgm_image_set_border_inner_color</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> alpha);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-border-inner-color" title="pgm_image_get_border_inner_color ()">pgm_image_get_border_inner_color</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *alpha);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-set-border-outer-color" title="pgm_image_set_border_outer_color ()">pgm_image_set_border_outer_color</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> alpha);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-get-border-outer-color" title="pgm_image_get_border_outer_color ()">pgm_image_get_border_outer_color</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *alpha);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-from-drawable" title="pgm_image_from_drawable ()">pgm_image_from_drawable</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> *x_image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> *y_image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> x_drawable,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> y_drawable);
<a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> <a class="link" href="PgmImage.html#pgm-image-to-drawable" title="pgm_image_to_drawable ()">pgm_image_to_drawable</a> (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> *x_drawable,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> *y_drawable,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> x_image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> y_image);
</pre>
</div>
<div class="refsect1" lang="en">
<a name="PgmImage.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject"
>GObject</a>
+----GstObject
+----<a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a>
+----PgmImage
</pre>
</div>
<div class="refsect1" lang="en">
<a name="PgmImage.signals"></a><h2>Signals</h2>
<pre class="synopsis">
"<a class="link" href="PgmImage.html#PgmImage-cloned" title='The "cloned" signal'>cloned</a>" : Run First
"<a class="link" href="PgmImage.html#PgmImage-file-loaded" title='The "file-loaded" signal'>file-loaded</a>" : Run First
"<a class="link" href="PgmImage.html#PgmImage-un-cloned" title='The "un-cloned" signal'>un-cloned</a>" : Run First
</pre>
</div>
<div class="refsect1" lang="en">
<a name="PgmImage.description"></a><h2>Description</h2>
<p>
</p>
<div class="refsect2" lang="en">
<a name="id2789208"></a><h3>Loading image data</h3>
<p>
<a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> is a drawable displaying media. It supports various ways of loading
images through buffers, file paths or videos through GStreamer.
</p>
<p>
Image data loading can happen with three different functions:
</p>
<div class="itemizedlist"><ul type="disc">
<li><p>
<a class="link" href="PgmImage.html#pgm-image-set-from-buffer" title="pgm_image_set_from_buffer ()"><code class="function">pgm_image_set_from_buffer()</code></a> takes a pre-loaded data buffer and sets it as
the currently displayed image. This is useful when you want to use an image
loading library (GdkPixbuf, FreeImage, etc) in your application and just
provide the pixels to <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> for display. The data buffer containing the
pixels is copied internally, you can free the data buffer from the
application side as soon as the function returns.
</p></li>
<li><p>
<a class="link" href="PgmImage.html#pgm-image-set-from-gst-buffer" title="pgm_image_set_from_gst_buffer ()"><code class="function">pgm_image_set_from_gst_buffer()</code></a> takes a GStreamer <span class="type">GstBuffer</span> and sets it as
the currently displayed image. This is mostly used to do video rendering.
There's no copying of the buffer data to optimize performances, indeed the
reference count of the buffer is going to be increased to keep the buffer
around while it's needed for rendering. When you call <a class="link" href="PgmImage.html#pgm-image-clear" title="pgm_image_clear ()"><code class="function">pgm_image_clear()</code></a> the
reference to the buffer will be decreased and the buffer can get freed. Note
that this method is used by <span class="type">PgmSink</span> to render video frames directly in a
<a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> when the pipeline is playing.
</p></li>
<li><p>
<a class="link" href="PgmImage.html#pgm-image-set-from-file" title="pgm_image_set_from_file ()"><code class="function">pgm_image_set_from_file()</code></a> takes a path to an image file delegating image
loading to Pigment. Thus the loading is asynchronous and won't block the
Pigment main loop.
</p></li>
</ul></div>
<p>
</p>
<p>
<a class="link" href="PgmImage.html#pgm-image-set-from-image" title="pgm_image_set_from_image ()"><code class="function">pgm_image_set_from_image()</code></a> is a convenient system to slave an image to
another one. Indeed you might want to load an image data once and then use
it in multiple image objects. In that case this image becomes a slave to the
one that has the image data loaded internally and each time it needs to draw
it will use that data.
</p>
<p>
Layout settings of the drawable are independent from one image to another.
That means that even if two image objects are using the same image, they can
have different colors, different <span class="type">PgmDrawableLayoutType</span> or different
<span class="type">PgmDrawableAlignment</span>.
</p>
<p>
Each time a new image data buffer is loaded in the master image object, all
the slave image objects are automatically updated. That means you can render
a video clip in ten different drawables without doing anything else than
slaving nine image objects to the one that's receiving the image data.
</p>
<p>
This rarely happens with normal images but video rendering often has non
square pixels video frames coming out of the video decoders (DVD, DV cameras,
etc). In that case a calculation has to be done when projecting to the
viewport so that we put in adequation both the pixel aspect ratio and the
source video aspect ratio. You can set the image aspect ratio using
<a class="link" href="PgmImage.html#pgm-image-set-aspect-ratio" title="pgm_image_set_aspect_ratio ()"><code class="function">pgm_image_set_aspect_ratio()</code></a> and be assured that Pigment is going to render
that image correctly on the viewport.
</p>
<p>
Depending on the viewport implementation, some <a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat"><span class="type">PgmImagePixelFormat</span></a> (color
space) can be supported or not. When it comes to video rendering, hardware
acceleration is very important and you need to know what kind of pixel
formats are convenient for the rendering backend. you can get a list of
supported (accelerated) pixel formats using
<a class="link" href="PgmViewport.html#pgm-viewport-get-pixel-formats" title="pgm_viewport_get_pixel_formats ()"><code class="function">pgm_viewport_get_pixel_formats()</code></a>.
</p>
</div>
<p>
</p>
<p>
Last reviewed on 2007-11-08 (0.3.2)</p>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="PgmImage.details"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="PgmImageAlignment"></a><h3>enum PgmImageAlignment</h3>
<pre class="programlisting">typedef enum {
PGM_IMAGE_LEFT = (1 << 0),
PGM_IMAGE_CENTER = (1 << 1),
PGM_IMAGE_RIGHT = (1 << 2),
PGM_IMAGE_TOP = (1 << 3),
PGM_IMAGE_BOTTOM = (1 << 4),
PGM_IMAGE_TOP_LEFT = (PGM_IMAGE_TOP | PGM_IMAGE_LEFT),
PGM_IMAGE_TOP_CENTER = (PGM_IMAGE_TOP | PGM_IMAGE_CENTER),
PGM_IMAGE_TOP_RIGHT = (PGM_IMAGE_TOP | PGM_IMAGE_RIGHT),
PGM_IMAGE_BOTTOM_LEFT = (PGM_IMAGE_BOTTOM | PGM_IMAGE_LEFT),
PGM_IMAGE_BOTTOM_CENTER = (PGM_IMAGE_BOTTOM | PGM_IMAGE_CENTER),
PGM_IMAGE_BOTTOM_RIGHT = (PGM_IMAGE_BOTTOM | PGM_IMAGE_RIGHT)
} PgmImageAlignment;
</pre>
<p>
The possible alignments you can combine.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="PGM-IMAGE-LEFT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_LEFT</code></span></p></td>
<td> Align to the left.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-CENTER--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_CENTER</code></span></p></td>
<td> Align to the center (both vertically and horizontally).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-RIGHT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_RIGHT</code></span></p></td>
<td> Align to the right.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-TOP--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_TOP</code></span></p></td>
<td> Align to the top.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BOTTOM--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BOTTOM</code></span></p></td>
<td> Align to the bottom.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-TOP-LEFT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_TOP_LEFT</code></span></p></td>
<td> Align to the top left.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-TOP-CENTER--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_TOP_CENTER</code></span></p></td>
<td> Align to the top center.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-TOP-RIGHT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_TOP_RIGHT</code></span></p></td>
<td> Align to the top right.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BOTTOM-LEFT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BOTTOM_LEFT</code></span></p></td>
<td> Align to the bottom left.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BOTTOM-CENTER--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BOTTOM_CENTER</code></span></p></td>
<td> Align to the bottom center.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BOTTOM-RIGHT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BOTTOM_RIGHT</code></span></p></td>
<td> Align to the bottom right.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageLayoutType"></a><h3>enum PgmImageLayoutType</h3>
<pre class="programlisting">typedef enum {
PGM_IMAGE_FILLED = 0,
PGM_IMAGE_SCALED = 1,
PGM_IMAGE_ZOOMED = 2,
PGM_IMAGE_CENTERED = 3,
PGM_IMAGE_TILED = 4
} PgmImageLayoutType;
</pre>
<p>
The different layout types.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="PGM-IMAGE-FILLED--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_FILLED</code></span></p></td>
<td> <img src="filled_layout.png">Scales the stored image to the whole drawable size ignoring
the pixel-aspect-ratio.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-SCALED--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_SCALED</code></span></p></td>
<td> <img src="scaled_layout.png">Scales the stored image to
adapt its size to the drawable one keeping the pixel-aspect-ratio.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-ZOOMED--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_ZOOMED</code></span></p></td>
<td> <img src="zoomed_layout.png">Scales the stored image to the whole drawable size keeping
the pixel-aspect-ratio. It crops the border of the stored image.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-CENTERED--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_CENTERED</code></span></p></td>
<td> Centers the stored image in the middle of the
drawable keeping the pixel-aspect-ratio. It crops the image if its size is
bigger than the drawable size.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-TILED--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_TILED</code></span></p></td>
<td> Repeats the stored image along the drawable.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageInterpType"></a><h3>enum PgmImageInterpType</h3>
<pre class="programlisting">typedef enum {
PGM_IMAGE_NEAREST,
PGM_IMAGE_BILINEAR
} PgmImageInterpType;
</pre>
<p>
The different image interpolation types.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="PGM-IMAGE-NEAREST--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_NEAREST</code></span></p></td>
<td> The nearest neighbour sampling is the fastest and
lowest quality mode.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BILINEAR--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BILINEAR</code></span></p></td>
<td> The bilinear sampling is the slowest and highest
quality mode.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageWrapping"></a><h3>enum PgmImageWrapping</h3>
<pre class="programlisting">typedef enum {
PGM_IMAGE_CLAMP,
PGM_IMAGE_TRANSPARENT,
PGM_IMAGE_REPEAT
} PgmImageWrapping;
</pre>
<p>
The different image wrapping types.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="PGM-IMAGE-CLAMP--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_CLAMP</code></span></p></td>
<td> The image content is displayed in the mapping range
[0.0, 1.0] and clamped to the last pixel outside it.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-TRANSPARENT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_TRANSPARENT</code></span></p></td>
<td> The image content is displayed in the mapping range
[0.0, 1.0] and discarded outside it. Can be used in combination with the
<a class="link" href="PgmImage.html#PGM-IMAGE-BILINEAR--CAPS"><span class="type">PGM_IMAGE_BILINEAR</span></a> filtering to antialias the edges of images.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-REPEAT--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_REPEAT</code></span></p></td>
<td> The image content is displayed in the mapping range
[0.0, 1.0] and repeated infinitely outside it.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImagePixelFormat"></a><h3>enum PgmImagePixelFormat</h3>
<pre class="programlisting">typedef enum {
PGM_IMAGE_RGB = (1 << 0),
PGM_IMAGE_BGR = (1 << 1),
PGM_IMAGE_RGBA = (1 << 2),
PGM_IMAGE_BGRA = (1 << 3),
PGM_IMAGE_I420 = (1 << 4),
PGM_IMAGE_YV12 = (1 << 5),
PGM_IMAGE_UYVY = (1 << 6),
PGM_IMAGE_YUYV = (1 << 7)
} PgmImagePixelFormat;
</pre>
<p>
The different image pixel formats.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="PGM-IMAGE-RGB--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_RGB</code></span></p></td>
<td> 24 bits RGB (3 bytes, red 8 @ 16, green 8 @ 8, blue 8 @ 0).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BGR--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BGR</code></span></p></td>
<td> 24 bits BGR (3 bytes, blue 8 @ 16, green 8 @ 8, red 8 @ 0).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-RGBA--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_RGBA</code></span></p></td>
<td> 32 bits RGBA (4 bytes, red 8 @ 24, green 8 @ 16, blue 8 @ 8,
alpha 8 @ 0).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BGRA--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BGRA</code></span></p></td>
<td> 32 bits BGRA (4 bytes, blue 8 @ 24, green 8 @ 16, red 8 @ 8,
alpha 8 @ 0).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-I420--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_I420</code></span></p></td>
<td> 12 bits YUV (8 bits Y plane followed by 8 bits quarter
size U/V planes).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-YV12--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_YV12</code></span></p></td>
<td> 12 bits YUV (8 bits Y plane followed by 8 bits quarter
size V/U planes).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-UYVY--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_UYVY</code></span></p></td>
<td> 16 bits YUV (4 bytes / 2 pixels, macropixel contains
YCbYCr [31:0]).
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-YUYV--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_YUYV</code></span></p></td>
<td> 16 bits YUV (4 bytes / 2 pixels, macropixel contains
CbYCrY [31:0], duplicate of YUY2).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageFile"></a><h3>PgmImageFile</h3>
<pre class="programlisting">typedef struct {
GdkPixbuf *pixbuf;
gchar *filename;
guint width;
guint height;
} PgmImageFile;
</pre>
<p>
The <a class="link" href="PgmImage.html#PgmImageFile" title="PgmImageFile"><span class="type">PgmImageFile</span></a> structure.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> *<em class="structfield"><code>pixbuf</code></em>;</span></p></td>
<td> the <a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
><span class="type">GdkPixbuf</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"
>gchar</a> *<em class="structfield"><code>filename</code></em>;</span></p></td>
<td> the file name.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>width</code></em>;</span></p></td>
<td> the cached pixbuf width.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>height</code></em>;</span></p></td>
<td> the cached pixbuf height.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageBuffer"></a><h3>PgmImageBuffer</h3>
<pre class="programlisting">typedef struct {
guint8 *buffer;
PgmImagePixelFormat format;
guint width;
guint height;
guint stride;
guint size;
} PgmImageBuffer;
</pre>
<p>
The <a class="link" href="PgmImage.html#PgmImageBuffer" title="PgmImageBuffer"><span class="type">PgmImageBuffer</span></a> structure.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"
>guint8</a> *<em class="structfield"><code>buffer</code></em>;</span></p></td>
<td> the buffer pointer.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> <em class="structfield"><code>format</code></em>;</span></p></td>
<td> the buffer format.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>width</code></em>;</span></p></td>
<td> the buffer width.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>height</code></em>;</span></p></td>
<td> the buffer height.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>stride</code></em>;</span></p></td>
<td> the buffer stride.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>size</code></em>;</span></p></td>
<td> the buffer size.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageGstBuffer"></a><h3>PgmImageGstBuffer</h3>
<pre class="programlisting">typedef struct {
GstBuffer *gst_buffer;
PgmImagePixelFormat format;
guint width;
guint height;
guint stride;
} PgmImageGstBuffer;
</pre>
<p>
The <a class="link" href="PgmImage.html#PgmImageGstBuffer" title="PgmImageGstBuffer"><span class="type">PgmImageGstBuffer</span></a> structure.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">GstBuffer *<em class="structfield"><code>gst_buffer</code></em>;</span></p></td>
<td> the <span class="type">GstBuffer</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> <em class="structfield"><code>format</code></em>;</span></p></td>
<td> the <span class="type">GstBuffer</span> format.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>width</code></em>;</span></p></td>
<td> the <span class="type">GstBuffer</span> width.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>height</code></em>;</span></p></td>
<td> the <span class="type">GstBuffer</span> height.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>stride</code></em>;</span></p></td>
<td> the <span class="type">GstBuffer</span> stride.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageSystemBuffer"></a><h3>PgmImageSystemBuffer</h3>
<pre class="programlisting">typedef struct {
gconstpointer system_buffer;
PgmImagePixelFormat format;
guint width;
guint height;
} PgmImageSystemBuffer;
</pre>
<p>
The <a class="link" href="PgmImage.html#PgmImageSystemBuffer" title="PgmImageSystemBuffer"><span class="type">PgmImageSystemBuffer</span></a> structure.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> <em class="structfield"><code>system_buffer</code></em>;</span></p></td>
<td> the system buffer pointer.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> <em class="structfield"><code>format</code></em>;</span></p></td>
<td> the system buffer format.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>width</code></em>;</span></p></td>
<td> the system buffer width.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>height</code></em>;</span></p></td>
<td> the system buffer height.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImagePixbuf"></a><h3>PgmImagePixbuf</h3>
<pre class="programlisting">typedef struct {
GdkPixbuf *pixbuf;
} PgmImagePixbuf;
</pre>
<p>
The <a class="link" href="PgmImage.html#PgmImagePixbuf" title="PgmImagePixbuf"><span class="type">PgmImagePixbuf</span></a> structure.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> *<em class="structfield"><code>pixbuf</code></em>;</span></p></td>
<td> the <a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
><span class="type">GdkPixbuf</span></a> object.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageStorageType"></a><h3>enum PgmImageStorageType</h3>
<pre class="programlisting">typedef enum {
PGM_IMAGE_EMPTY,
PGM_IMAGE_FILE,
PGM_IMAGE_BUFFER,
PGM_IMAGE_GST_BUFFER,
PGM_IMAGE_PIXBUF,
PGM_IMAGE_IMAGE,
PGM_IMAGE_SYSTEM_BUFFER
} PgmImageStorageType;
</pre>
<p>
The different storage type.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="PGM-IMAGE-EMPTY--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_EMPTY</code></span></p></td>
<td> no image stored.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-FILE--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_FILE</code></span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImageFile" title="PgmImageFile"><span class="type">PgmImageFile</span></a> is stored.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-BUFFER--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_BUFFER</code></span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImageBuffer" title="PgmImageBuffer"><span class="type">PgmImageBuffer</span></a> is stored.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-GST-BUFFER--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_GST_BUFFER</code></span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImageGstBuffer" title="PgmImageGstBuffer"><span class="type">PgmImageGstBuffer</span></a> is stored.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-PIXBUF--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_PIXBUF</code></span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImagePixbuf" title="PgmImagePixbuf"><span class="type">PgmImagePixbuf</span></a> is stored.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-IMAGE--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_IMAGE</code></span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> is stored.
</td>
</tr>
<tr>
<td><p><a name="PGM-IMAGE-SYSTEM-BUFFER--CAPS"></a><span class="term"><code class="literal">PGM_IMAGE_SYSTEM_BUFFER</code></span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImageSystemBuffer" title="PgmImageSystemBuffer"><span class="type">PgmImageSystemBuffer</span></a> is stored.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImageData"></a><h3>union PgmImageData</h3>
<pre class="programlisting">union PgmImageData {
PgmImageFile file;
PgmImageBuffer buffer;
PgmImageGstBuffer gst_buffer;
PgmImagePixbuf pixbuf;
PgmImageSystemBuffer system_buffer;
};
</pre>
<p>
The stored data depending on the storage type.</p>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImage-struct"></a><h3>PgmImage</h3>
<pre class="programlisting">typedef struct {
/* Slavery handling */
PgmImage *master;
GList *slaves;
PgmMat4x4 *mapping_matrix;
/* Image storage */
PgmImageStorageType storage_type;
PgmImageData data;
/* Image displaying properties */
PgmImageLayoutType layout;
PgmImageAlignment align;
PgmImageInterpType interp;
PgmImageWrapping wrap_s;
PgmImageWrapping wrap_t;
guint par_n, par_d;
/* Image border */
gfloat border_width;
guchar border_inner_r;
guchar border_inner_g;
guchar border_inner_b;
guchar border_inner_a;
guchar border_outer_r;
guchar border_outer_g;
guchar border_outer_b;
guchar border_outer_a;
} PgmImage;
</pre>
<p>
The <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> structure.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *<em class="structfield"><code>master</code></em>;</span></p></td>
<td> the image <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> master.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"
>GList</a> *<em class="structfield"><code>slaves</code></em>;</span></p></td>
<td> the image list of <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> slaves.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="pigment-PgmLinearAlgebra.html#PgmMat4x4" title="PgmMat4x4">PgmMat4x4</a> *<em class="structfield"><code>mapping_matrix</code></em>;</span></p></td>
<td> the image mapping matrix.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImageStorageType" title="enum PgmImageStorageType">PgmImageStorageType</a> <em class="structfield"><code>storage_type</code></em>;</span></p></td>
<td> the currently stored image type.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImageData" title="union PgmImageData">PgmImageData</a> <em class="structfield"><code>data</code></em>;</span></p></td>
<td> the image data depending on the type.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType">PgmImageLayoutType</a> <em class="structfield"><code>layout</code></em>;</span></p></td>
<td> the image layout.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment">PgmImageAlignment</a> <em class="structfield"><code>align</code></em>;</span></p></td>
<td> the image alignment.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType">PgmImageInterpType</a> <em class="structfield"><code>interp</code></em>;</span></p></td>
<td> the image interpolation.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> <em class="structfield"><code>wrap_s</code></em>;</span></p></td>
<td> the image s wrapping.
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> <em class="structfield"><code>wrap_t</code></em>;</span></p></td>
<td> the image t wrapping.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>par_n</code></em>;</span></p></td>
<td> the image pixel-aspect-ratio numerator.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <em class="structfield"><code>par_d</code></em>;</span></p></td>
<td> the image pixel-aspect-ratio denominator.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> <em class="structfield"><code>border_width</code></em>;</span></p></td>
<td> the image border width.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_inner_r</code></em>;</span></p></td>
<td> the image border outer red color.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_inner_g</code></em>;</span></p></td>
<td> the image border outer green color.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_inner_b</code></em>;</span></p></td>
<td> the image border outer blue color.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_inner_a</code></em>;</span></p></td>
<td> the image border outer alpha color.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_outer_r</code></em>;</span></p></td>
<td> the image border outer red color.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_outer_g</code></em>;</span></p></td>
<td> the image border outer green color.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_outer_b</code></em>;</span></p></td>
<td> the image border outer blue color.
</td>
</tr>
<tr>
<td><p><span class="term"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> <em class="structfield"><code>border_outer_a</code></em>;</span></p></td>
<td> the image border outer alpha color.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-new"></a><h3>pgm_image_new ()</h3>
<pre class="programlisting"><a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * pgm_image_new (void);</pre>
<p>
Creates a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-new-from-file"></a><h3>pgm_image_new_from_file ()</h3>
<pre class="programlisting"><a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * pgm_image_new_from_file (const <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"
>gchar</a> *filename,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> max_size);</pre>
<p>
Creates a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance loading an image from the given <em class="parameter"><code>filename</code></em>.
It optionally pre-scales the image so that it has a maximum width and height
of <em class="parameter"><code>max_size</code></em>.
</p>
<p>
The loading is done asynchronously, it means that this function returns right
after the image object is created, the loading and decoding of the image
being done in another thread. The <a class="link" href="PgmImage.html#PgmImage-file-loaded" title='The "file-loaded" signal'>
'file-loaded'</a> signal is emitted from the Pigment main loop (the
thread running <a class="link" href="pigment-Pgm.html#pgm-main" title="pgm_main ()"><code class="function">pgm_main()</code></a> or the thread running a <a
href="http://library.gnome.org/devel/glib/unstable/glib-The-Main-Event-Loop.html#GMainLoop"
><span class="type">GMainLoop</span></a> using the
default <a
href="http://library.gnome.org/devel/glib/unstable/glib-The-Main-Event-Loop.html#GMainContext"
><span class="type">GMainContext</span></a>) once the loading finishes successfully.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td> the filename.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>max_size</code></em> :</span></p></td>
<td> the maximum size of the image in pixels before loading it in the
<a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> or 0 to not constrain the size.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-new-from-pixbuf"></a><h3>pgm_image_new_from_pixbuf ()</h3>
<pre class="programlisting"><a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * pgm_image_new_from_pixbuf (<a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> *pixbuf);</pre>
<p>
Creates a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance using <em class="parameter"><code>pixbuf</code></em> as stored image.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>pixbuf</code></em> :</span></p></td>
<td> the <a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
><span class="type">GdkPixbuf</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-new-from-buffer"></a><h3>pgm_image_new_from_buffer ()</h3>
<pre class="programlisting"><a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * pgm_image_new_from_buffer (<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> stride,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> size,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> data);</pre>
<p>
Creates a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance with the image from the given buffer.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> the pixel format of the buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td> the image width in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td> the image height in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>stride</code></em> :</span></p></td>
<td> the image rowstride in bytes (number of bytes per line).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td> the buffer size in bytes.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td> a pointer to the data buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-new-from-image"></a><h3>pgm_image_new_from_image ()</h3>
<pre class="programlisting"><a class="link" href="PgmDrawable.html" title="PgmDrawable">PgmDrawable</a> * pgm_image_new_from_image (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *src_image);</pre>
<p>
Creates a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance with an image slaved from the
image of <em class="parameter"><code>src_image</code></em>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>src_image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> which will be used as the master image.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-from-file"></a><h3>pgm_image_set_from_file ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_from_file (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
const <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"
>gchar</a> *filename,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> max_size);</pre>
<p>
Loads an image from the file <em class="parameter"><code>filename</code></em>. It optionally pre-scales the image so
it has a maximum width and height of <em class="parameter"><code>max_size</code></em>.
</p>
<p>
The loading is done asynchronously, it means that this function returns right
after the image object is created, the loading and decoding of the image
being done in another thread. The
'pixbuf-loaded' signal is emitted from the Pigment main loop (the
thread running <a class="link" href="pigment-Pgm.html#pgm-main" title="pgm_main ()"><code class="function">pgm_main()</code></a> or the thread running a <a
href="http://library.gnome.org/devel/glib/unstable/glib-The-Main-Event-Loop.html#GMainLoop"
><span class="type">GMainLoop</span></a> using the
default <a
href="http://library.gnome.org/devel/glib/unstable/glib-The-Main-Event-Loop.html#GMainContext"
><span class="type">GMainContext</span></a>) once the loading finishes successfully.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td> a filename.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>max_size</code></em> :</span></p></td>
<td> the maximum size of the image in pixels before loading it in the
<a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> or 0 to not constrain the size.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-from-pixbuf"></a><h3>pgm_image_set_from_pixbuf ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_from_pixbuf (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> *pixbuf);</pre>
<p>
Loads an image in <em class="parameter"><code>image</code></em> from a pixbuf. <em class="parameter"><code>pixbuf</code></em> will have its reference
count increased by 1 and will not get freed until the drawable gets cleaned
up or that a new buffer is loaded.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pixbuf</code></em> :</span></p></td>
<td> the <a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
><span class="type">GdkPixbuf</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-from-buffer"></a><h3>pgm_image_set_from_buffer ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_from_buffer (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> stride,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> size,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> data);</pre>
<p>
Loads an image in <em class="parameter"><code>image</code></em> from an existing buffer using pixel format <em class="parameter"><code>format</code></em>.
If you don't know the rowstride of the image you can set stride to 0. <em class="parameter"><code>data</code></em>
is copied internally you can free it right after the function call returns.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> the pixel format of the buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td> the image width in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td> the image height in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>stride</code></em> :</span></p></td>
<td> the rowstride of the image in bytes (number of bytes per line).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td> the buffer size in bytes.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td> a pointer to the data buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-from-gst-buffer"></a><h3>pgm_image_set_from_gst_buffer ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_from_gst_buffer (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> stride,
GstBuffer *buffer);</pre>
<p>
Loads an image in <em class="parameter"><code>image</code></em> from an existing <span class="type">GstBuffer</span> using the pixel format
<em class="parameter"><code>format</code></em>. If you don't know the rowstride of the image you can set stride
to 0. <em class="parameter"><code>buffer</code></em> will have its reference count increased by 1 and will not get
freed until the drawable gets cleaned up or that a new buffer is loaded.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> the pixel format of the buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td> the image width in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td> the image height in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>stride</code></em> :</span></p></td>
<td> the rowstride of the image in bytes (number of bytes per line).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td> A <span class="type">GstBuffer</span> reference containing the video frame.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-from-system-buffer"></a><h3>pgm_image_set_from_system_buffer ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_from_system_buffer (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImagePixelFormat" title="enum PgmImagePixelFormat">PgmImagePixelFormat</a> format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> width,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> height,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> system_buffer);</pre>
<p>
Loads an image in <em class="parameter"><code>image</code></em> from an existing system buffer.
</p>
<p>
A system buffer depends on the platform, for instance on UNIX with an X11
server running, <em class="parameter"><code>system_buffer</code></em> can be set to an X11 Pixmap.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> the pixel format of the buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td> the image width in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td> the image height in pixels.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>system_buffer</code></em> :</span></p></td>
<td> a pointer to the system buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-from-image"></a><h3>pgm_image_set_from_image ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_from_image (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *src_image);</pre>
<p>
Slaves <em class="parameter"><code>image</code></em> to <em class="parameter"><code>src_image</code></em>. Every change to <em class="parameter"><code>src_image</code></em> is reflected on
<em class="parameter"><code>image</code></em> until you remove <em class="parameter"><code>image</code></em> from the canvas or you call <a class="link" href="PgmImage.html#pgm-image-clear" title="pgm_image_clear ()"><code class="function">pgm_image_clear()</code></a>
on <em class="parameter"><code>image</code></em>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src_image</code></em> :</span></p></td>
<td> the source <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object to use as a master.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-to-pixbuf"></a><h3>pgm_image_to_pixbuf ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_to_pixbuf (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
>GdkPixbuf</a> **pixbuf);</pre>
<p>
Retrieves a <a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
><span class="type">GdkPixbuf</span></a> of the image currently stored in <em class="parameter"><code>image</code></em>.
</p>
<p>
Only the images stored as pixbuf can be retrieved at the moment, the
conversion for the other storage types is not implemented yet.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pixbuf</code></em> :</span></p></td>
<td> a double pointer to <a
href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-gdk-pixbuf.html#GdkPixbuf"
><span class="type">GdkPixbuf</span></a>. Unref after usage.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-clear"></a><h3>pgm_image_clear ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_clear (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image);</pre>
<p>
Removes any image from <em class="parameter"><code>image</code></em>. If <em class="parameter"><code>image</code></em> had some image data loaded, it's
cleared, if there was a <span class="type">GstBuffer</span> used, it's unreffed and if the <em class="parameter"><code>image</code></em> was
a slave to another it is not anymore. If <em class="parameter"><code>image</code></em> has slave images they all
get cleared but they still are slaves to <em class="parameter"><code>image</code></em>. So if you load a new image
to <em class="parameter"><code>image</code></em>, all the slaves will load it too.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-storage-type"></a><h3>pgm_image_get_storage_type ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_storage_type (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageStorageType" title="enum PgmImageStorageType">PgmImageStorageType</a> *storage);</pre>
<p>
Retrieves the type of representation being used by <em class="parameter"><code>image</code></em> to store image
data. If <em class="parameter"><code>image</code></em> has no image data, the return value will be
<a class="link" href="PgmImage.html#PGM-IMAGE-EMPTY--CAPS"><span class="type">PGM_IMAGE_EMPTY</span></a>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>storage</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImageStorageType" title="enum PgmImageStorageType"><span class="type">PgmImageStorageType</span></a> where the storage type is going to be
stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-system-buffer-lock"></a><h3>pgm_image_system_buffer_lock ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_system_buffer_lock (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image);</pre>
<p>
Lock the system buffer set as the image content, ensuring the image is not
going to be drawn while the system buffer content changes. This function
guaranties tear free system buffer updates.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-system-buffer-unlock"></a><h3>pgm_image_system_buffer_unlock ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_system_buffer_unlock (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image);</pre>
<p>
Unlock the system buffer set as the image content.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-mapping-matrix"></a><h3>pgm_image_set_mapping_matrix ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_mapping_matrix (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="pigment-PgmLinearAlgebra.html#PgmMat4x4" title="PgmMat4x4">PgmMat4x4</a> *mapping_matrix);</pre>
<p>
Defines the transformation to apply to the stored image when it is rendered.
You can make the stored image slide over the drawable, rotate around it,
stretch and shrink, or any combination of the three.
</p>
<p>
Each point in an image can be defined by an (x, y) vector, which we call
the source position, representing the horizontal (x) and vertical (y)
positions (with values between 0 for left/top and 1 for right/bottom).
When the image is drawn on a surface, each point (x, y) is drawn on the
(x', y') coordinate of the surface. We call (x', y') the destination
position. The default mapping matrix is the identity, you have
(x', y') == (x, y). Once you have called the function, the destination
position is calculated by multiplying <em class="parameter"><code>mapping_matrix</code></em> with the source
position vector. To reset the mapping matrix, just set the identity.
</p>
<p>
<em class="parameter"><code>mapping_matrix</code></em> is a 4x4 matrix since the source and destination positions
can be represented as 4 coordinate vectors (x, y, z, w) and (x', y', z', w').
Unless you know what you are doing, you should not worry about z and w, and
arrange for your matrix to leave them unchanged.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mapping_matrix</code></em> :</span></p></td>
<td> a <a class="link" href="pigment-PgmLinearAlgebra.html#PgmMat4x4" title="PgmMat4x4"><span class="type">PgmMat4x4</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-mapping-matrix"></a><h3>pgm_image_get_mapping_matrix ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_mapping_matrix (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="pigment-PgmLinearAlgebra.html#PgmMat4x4" title="PgmMat4x4">PgmMat4x4</a> **mapping_matrix);</pre>
<p>
Retrieves in <em class="parameter"><code>matrix</code></em> the current mapping matrix applied to <em class="parameter"><code>image</code></em>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mapping_matrix</code></em> :</span></p></td>
<td> a pointer to a <a class="link" href="pigment-PgmLinearAlgebra.html#PgmMat4x4" title="PgmMat4x4"><span class="type">PgmMat4x4</span></a> pointer where the mapping matrix
is going to be stored. <a class="link" href="pigment-PgmLinearAlgebra.html#pgm-mat4x4-free" title="pgm_mat4x4_free ()"><code class="function">pgm_mat4x4_free()</code></a> after use.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-alignment"></a><h3>pgm_image_set_alignment ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_alignment (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment">PgmImageAlignment</a> align);</pre>
<p>
Defines the way <em class="parameter"><code>image</code></em> aligns the stored image.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>align</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment"><span class="type">PgmImageAlignment</span></a> combination of flags.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-alignment"></a><h3>pgm_image_get_alignment ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_alignment (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment">PgmImageAlignment</a> *align);</pre>
<p>
Retrieves in <em class="parameter"><code>align</code></em> the way <em class="parameter"><code>image</code></em> aligns the stored image.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>align</code></em> :</span></p></td>
<td> a pointer to a <a class="link" href="PgmImage.html#PgmImageAlignment" title="enum PgmImageAlignment"><span class="type">PgmImageAlignment</span></a> where alignment flags are going
to be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-layout"></a><h3>pgm_image_set_layout ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_layout (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType">PgmImageLayoutType</a> layout);</pre>
<p>
Defines the way <em class="parameter"><code>image</code></em> layouts its stored image.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>layout</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType"><span class="type">PgmImageLayoutType</span></a> layout type.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-layout"></a><h3>pgm_image_get_layout ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_layout (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType">PgmImageLayoutType</a> *layout);</pre>
<p>
Retrieves in <em class="parameter"><code>layout</code></em> the way <em class="parameter"><code>image</code></em> layouts its its stored image.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>layout</code></em> :</span></p></td>
<td> a pointer to a <a class="link" href="PgmImage.html#PgmImageLayoutType" title="enum PgmImageLayoutType"><span class="type">PgmImageLayoutType</span></a> where the layout type is going
to be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-interp"></a><h3>pgm_image_set_interp ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_interp (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType">PgmImageInterpType</a> interp);</pre>
<p>
Defines that <em class="parameter"><code>image</code></em> will be rendered using <em class="parameter"><code>interp</code></em> as its interpolation
type.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>interp</code></em> :</span></p></td>
<td> the interpolation type.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-interp"></a><h3>pgm_image_get_interp ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_interp (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType">PgmImageInterpType</a> *interp);</pre>
<p>
Retrieves in <em class="parameter"><code>interp</code></em> the current interpolation type of <em class="parameter"><code>image</code></em>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>interp</code></em> :</span></p></td>
<td> a pointer to a <a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType"><span class="type">PgmImageInterpType</span></a> where the interpolation type
is going to be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-wrapping"></a><h3>pgm_image_set_wrapping ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_wrapping (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> wrap_s,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> wrap_t);</pre>
<p>
Sets the horizontal and vertical wrapping modes used for the mapping of
<em class="parameter"><code>image</code></em>. When the mapping matrix is modified, pixels outside the range of the
image content are accessed, the wrapping mode defines the behaviour of the
mapping in that particular case.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wrap_s</code></em> :</span></p></td>
<td> the wrapping on the s coordinate. <a class="link" href="PgmImage.html#PGM-IMAGE-REPEAT--CAPS"><span class="type">PGM_IMAGE_REPEAT</span></a> by default.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wrap_t</code></em> :</span></p></td>
<td> the wrapping on the t coordinate. <a class="link" href="PgmImage.html#PGM-IMAGE-REPEAT--CAPS"><span class="type">PGM_IMAGE_REPEAT</span></a> by default.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-wrapping"></a><h3>pgm_image_get_wrapping ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_wrapping (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> *wrap_s,
<a class="link" href="PgmImage.html#PgmImageWrapping" title="enum PgmImageWrapping">PgmImageWrapping</a> *wrap_t);</pre>
<p>
Retrieves in <em class="parameter"><code>wrap_s</code></em> and <em class="parameter"><code>wrap_t</code></em> the current wrapping modes of <em class="parameter"><code>image</code></em>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wrap_s</code></em> :</span></p></td>
<td> a pointer to a <a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType"><span class="type">PgmImageInterpType</span></a> where the wrapping mode on the s
coordinate is going to be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wrap_t</code></em> :</span></p></td>
<td> a pointer to a <a class="link" href="PgmImage.html#PgmImageInterpType" title="enum PgmImageInterpType"><span class="type">PgmImageInterpType</span></a> where the wrapping mode on the t
coordinate is going to be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-aspect-ratio"></a><h3>pgm_image_set_aspect_ratio ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_aspect_ratio (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> numerator,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> denominator);</pre>
<p>
Customizes the aspect ratio of the stored image.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>numerator</code></em> :</span></p></td>
<td> the numerator of the aspect ratio fraction.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>denominator</code></em> :</span></p></td>
<td> the denominator of the aspect ratio fraction.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-aspect-ratio"></a><h3>pgm_image_get_aspect_ratio ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_aspect_ratio (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *numerator,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *denominator);</pre>
<p>
Retrieves the aspect ratio of the stored image.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>numerator</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
><span class="type">guint</span></a> where the numerator of the aspect ratio
fraction will be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>denominator</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
><span class="type">guint</span></a> where the denominator of the aspect
ratio fraction will be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-border-width"></a><h3>pgm_image_set_border_width ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_border_width (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> width);</pre>
<p>
Defines the border width drawn around <em class="parameter"><code>image</code></em>.
</p>
<p>
Note that the border is drawn around the image, inside the drawable. When
you change the size of the border, the image will be down-scaled.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td> the border with. 0.0 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-border-width"></a><h3>pgm_image_get_border_width ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_border_width (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> *width);</pre>
<p>
Retrieves the width of the border drawn around <span class="type">image</span> inside the drawable.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
><span class="type">gfloat</span></a> where the border width will be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-border-inner-color"></a><h3>pgm_image_set_border_inner_color ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_border_inner_color (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> alpha);</pre>
<p>
Defines the border inner color drawn around <em class="parameter"><code>image</code></em>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>red</code></em> :</span></p></td>
<td> the border inner red color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>green</code></em> :</span></p></td>
<td> the border inner green color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>blue</code></em> :</span></p></td>
<td> the border inner blue color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>alpha</code></em> :</span></p></td>
<td> the border inner alpha color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-border-inner-color"></a><h3>pgm_image_get_border_inner_color ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_border_inner_color (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *alpha);</pre>
<p>
Retrieves the inner color of the border drawn around <span class="type">image</span> inside the
drawable.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>red</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border inner red color will be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>green</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border inner green color will be
stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>blue</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border inner blue color will be
stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>alpha</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border inner alpha color will be
stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-set-border-outer-color"></a><h3>pgm_image_set_border_outer_color ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_set_border_outer_color (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> alpha);</pre>
<p>
Defines the border outer color drawn around <em class="parameter"><code>image</code></em>.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>red</code></em> :</span></p></td>
<td> the border outer red color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>green</code></em> :</span></p></td>
<td> the border outer green color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>blue</code></em> :</span></p></td>
<td> the border outer blue color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>alpha</code></em> :</span></p></td>
<td> the border outer alpha color. 255 by default.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-get-border-outer-color"></a><h3>pgm_image_get_border_outer_color ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_get_border_outer_color (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *red,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *green,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *blue,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
>guchar</a> *alpha);</pre>
<p>
Retrieves the outer color of the border drawn around <span class="type">image</span> inside the
drawable.
</p>
<p>
MT safe.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>red</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border outer red color will be stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>green</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border outer green color will be
stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>blue</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border outer blue color will be
stored.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>alpha</code></em> :</span></p></td>
<td> a pointer to a <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> where the border outer alpha color will be
stored.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-from-drawable"></a><h3>pgm_image_from_drawable ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_from_drawable (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> *x_image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> *y_image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> x_drawable,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> y_drawable);</pre>
<p>
Converts a position in drawable space (canvas units, origin at top left of
drawable) into <em class="parameter"><code>image</code></em> space (image pixel units, origin at top left of image).</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x_image</code></em> :</span></p></td>
<td> where to return the x coordinate in the <em class="parameter"><code>image</code></em> plane.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y_image</code></em> :</span></p></td>
<td> where to return the y coordinate in the <em class="parameter"><code>image</code></em> plane.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x_drawable</code></em> :</span></p></td>
<td> the x coordinate in drawable space.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y_drawable</code></em> :</span></p></td>
<td> the y coordinate in drawable space.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="pgm-image-to-drawable"></a><h3>pgm_image_to_drawable ()</h3>
<pre class="programlisting"><a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError">PgmError</a> pgm_image_to_drawable (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> *x_drawable,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"
>gfloat</a> *y_drawable,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> x_image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> y_image);</pre>
<p>
Converts a position in <em class="parameter"><code>image</code></em> space (image pixel units, origin at top left of
image) into drawable space (canvas units, origin at top left of drawable).</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> a <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> instance
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x_drawable</code></em> :</span></p></td>
<td> where to return the x coordinate in the <em class="parameter"><code>drawable</code></em> plane.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y_drawable</code></em> :</span></p></td>
<td> where to return the y coordinate in the <em class="parameter"><code>drawable</code></em> plane.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x_image</code></em> :</span></p></td>
<td> the x coordinate in image space.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y_image</code></em> :</span></p></td>
<td> the y coordinate in image space.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="pigment-PgmCommon.html#PgmError" title="enum PgmError"><span class="type">PgmError</span></a> indicating success/failure.
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1" lang="en">
<a name="PgmImage.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2" lang="en">
<a name="PgmImage-cloned"></a><h3>The <code class="literal">"cloned"</code> signal</h3>
<pre class="programlisting">void user_function (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *clone,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> n_clones,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> user_data) : Run First</pre>
<p>
Will be emitted after <em class="parameter"><code>image</code></em> has been cloned by another <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> through
the <a class="link" href="PgmImage.html#pgm-image-new-from-image" title="pgm_image_new_from_image ()"><code class="function">pgm_image_new_from_image()</code></a> or <a class="link" href="PgmImage.html#pgm-image-set-from-image" title="pgm_image_set_from_image ()"><code class="function">pgm_image_set_from_image()</code></a> functions.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> the <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>clone</code></em> :</span></p></td>
<td> the cloned <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_clones</code></em> :</span></p></td>
<td> the number of cloned images
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImage-file-loaded"></a><h3>The <code class="literal">"file-loaded"</code> signal</h3>
<pre class="programlisting">void user_function (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> user_data) : Run First</pre>
<p>
Will be emitted after <em class="parameter"><code>image</code></em> has finished to load its data from the file
path given in the <a class="link" href="PgmImage.html#pgm-image-set-from-file" title="pgm_image_set_from_file ()"><code class="function">pgm_image_set_from_file()</code></a> method.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> the <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="PgmImage-un-cloned"></a><h3>The <code class="literal">"un-cloned"</code> signal</h3>
<pre class="programlisting">void user_function (<a class="link" href="PgmImage.html" title="PgmImage">PgmImage</a> *image,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> n_clones,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> user_data) : Run First</pre>
<p>
Will be emitted after <em class="parameter"><code>image</code></em> has got a cloned <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a> removed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>image</code></em> :</span></p></td>
<td> the <a class="link" href="PgmImage.html" title="PgmImage"><span class="type">PgmImage</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_clones</code></em> :</span></p></td>
<td> the number of cloned images
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1" lang="en">
<a name="PgmImage.see-also"></a><h2>See Also</h2>
#PgmDrawable, <a class="link" href="PgmText.html" title="PgmText"><span class="type">PgmText</span></a>, <a class="link" href="PgmCanvas.html" title="PgmCanvas"><span class="type">PgmCanvas</span></a>.
</div>
</div>
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