/usr/include/pigment-0.3/pgm/pgmviewport.h is in libpigment0.3-dev 0.3.17-1.
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*
* Pigment media rendering library
*
* Copyright © 2006, 2007, 2008 Fluendo Embedded S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author(s): Loïc Molinari <loic@fluendo.com>
* Julien Moutte <julien@fluendo.com>
*/
#ifndef __PGM_VIEWPORT_H__
#define __PGM_VIEWPORT_H__
/* pgmviewport.h and pgmviewportfactory.h include each other */
typedef struct _PgmViewport PgmViewport;
typedef struct _PgmViewportClass PgmViewportClass;
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "pgmcanvas.h"
#include "pgmviewportfactory.h"
#include "pgmlinearalgebra.h"
#include "pgmevents.h"
#ifdef WIN32
#include <Windows.h>
#endif /* WIN32 */
G_BEGIN_DECLS
#define PGM_TYPE_VIEWPORT (pgm_viewport_get_type ())
#define PGM_VIEWPORT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), PGM_TYPE_VIEWPORT, PgmViewport))
#define PGM_VIEWPORT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), PGM_TYPE_VIEWPORT, PgmViewportClass))
#define PGM_IS_VIEWPORT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), PGM_TYPE_VIEWPORT))
#define PGM_IS_VIEWPORT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), PGM_TYPE_VIEWPORT))
#define PGM_VIEWPORT_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), PGM_TYPE_VIEWPORT, PgmViewportClass))
#define PGM_VIEWPORT_CAST(obj) ((PgmViewport *) (obj))
/**
* PgmViewportCursor:
* @PGM_VIEWPORT_LEFT_ARROW: Standard left arrow system cursor.
* @PGM_VIEWPORT_INHERIT: Inherited cursor from the environment.
* @PGM_VIEWPORT_NONE: Hidden cursor.
*
* Pigment system cursor type.
*/
typedef enum {
PGM_VIEWPORT_LEFT_ARROW = 0,
PGM_VIEWPORT_INHERIT = 1,
PGM_VIEWPORT_NONE = 2
} PgmViewportCursor;
/**
* PgmViewportCapacity:
* @PGM_VIEWPORT_HARDWARE_ACCELERATION: Supports accelerated rendering thanks
* to dedicated hardware.
* @PGM_VIEWPORT_APPLICATION_EMBEDDING: Supports embedding into another
* application.
* @PGM_VIEWPORT_OPACITY: Supports opacity so that compositing managers can
* blend the viewport with other applications.
* @PGM_VIEWPORT_TOUCHPAD: Supports touchpad so that application can use the
* pressure events and parameters.
* @PGM_VIEWPORT_X11_SYSTEM_BUFFER: Supports X11 system buffer as image content.
* Actually, X11 system buffers are Pixmaps.
*
* Capacities supported by the viewport.
*/
typedef enum {
PGM_VIEWPORT_HARDWARE_ACCELERATION = (1 << 0),
PGM_VIEWPORT_APPLICATION_EMBEDDING = (1 << 1),
PGM_VIEWPORT_OPACITY = (1 << 2),
PGM_VIEWPORT_TOUCHPAD = (1 << 3),
PGM_VIEWPORT_X11_SYSTEM_BUFFER = (1 << 4)
} PgmViewportCapacity;
/**
* PgmViewportRotation:
* @PGM_VIEWPORT_ROTATION_NONE: Do not rotate to the canvas.
* @PGM_VIEWPORT_ROTATION_90: Rotate the canvas 90° counter-clockwise.
* @PGM_VIEWPORT_ROTATION_180: Rotate the canvas 180° counter-clockwise.
* @PGM_VIEWPORT_ROTATION_270: Rotate the canvas 270° counter-clockwise.
*
* The rotation types of the canvas projection.
*/
typedef enum {
PGM_VIEWPORT_ROTATION_NONE = 0,
PGM_VIEWPORT_ROTATION_90 = 1,
PGM_VIEWPORT_ROTATION_180 = 2,
PGM_VIEWPORT_ROTATION_270 = 3
} PgmViewportRotation;
/**
* PgmViewportReflection:
* @PGM_VIEWPORT_REFLECTION_NONE: Do not reflect to the canvas.
* @PGM_VIEWPORT_REFLECTION_HORIZONTAL_FLIP: Reflect the canvas horizontally.
* @PGM_VIEWPORT_REFLECTION_VERTICAL_FLIP: Reflect the canvas vertically.
*
* The reflection types of the canvas projection.
*/
typedef enum {
PGM_VIEWPORT_REFLECTION_NONE = 0,
PGM_VIEWPORT_REFLECTION_HORIZONTAL_FLIP = 1,
PGM_VIEWPORT_REFLECTION_VERTICAL_FLIP = 2
} PgmViewportReflection;
/* FIXME: Should not be exported in this header since it's only used
* internally. That could be fixed separating public and private
* GObject fields (see #183) */
typedef struct __PgmIOWatch _PgmIOWatch;
struct __PgmIOWatch {
GIOChannel *out;
GIOChannel *in;
gint fd[2];
gint tag;
};
/**
* PgmViewport:
* @factory: the factory used to instantiate the #PgmViewport.
* @canvas: the attached canvas.
* @message_filter: the filter of message events.
* @title: the viewport title.
* @icon: the current icon.
* @cursor: the current cursor.
* @fullscreen: the fullscreen state.
* @visible: the visible state.
* @decorated: the decorated state.
* @iconified: the iconified state.
* @opacity: the opacity.
* @alpha_blending: the alpha blending state.
* @width: the viewport width.
* @height: the viewport height.
* @width_mm: the viewport screen width in millimeters.
* @height_mm: the viewport screen height in millimeters.
* @projection: the 4x4 projection matrix.
* @inv_projection: the 4x4 inverse projection matrix.
* @projected_x: the attached canvas projected x position.
* @projected_y: the attached canvas projected y position.
* @projected_width: the attached canvas projected width.
* @projected_height: the attached canvas projected height.
* @rotation: the rotation of the projected canvas.
* @reflection: the reflection of the projected canvas.
* @pixel_aspect_ratio: the pixel-aspect-ratio.
* @viewport_ratio: the viewport ratio.
* @canvas_ratio: the attached canvas ratio with pixel-aspect-ratio correction
* applied.
* @caps_mask: the viewport mask of supported capacities.
*
* The #PgmViewport structure.
*/
struct _PgmViewport {
GstObject parent;
/*< public >*/ /* with LOCK */
PgmViewportFactory *factory;
PgmCanvas *canvas;
GList *message_filter;
gchar *title;
GdkPixbuf *icon;
PgmViewportCursor cursor;
gboolean fullscreen;
gboolean visible;
gboolean decorated;
gboolean iconified;
gboolean alpha_blending;
gint width, height;
gint width_mm, height_mm;
PgmMat4x4 *projection, *inv_projection;
gint projected_x, projected_y;
gint projected_width, projected_height;
PgmViewportRotation rotation;
PgmViewportReflection reflection;
gfloat pixel_aspect_ratio;
gfloat viewport_ratio;
gfloat canvas_ratio;
gulong caps_mask;
guchar opacity;
/*< private >*/
/* Watch sources */
_PgmIOWatch *event_watch;
GMutex *event_lock;
GList *event_list;
_PgmIOWatch *pixel_watch;
GMutex *pixel_lock;
GList *pixel_list;
gboolean pixel_watch_up;
gboolean event_watch_up;
/* Canvas rotation/reflection */
gfloat projection_hflip, projection_vflip;
gfloat projection_rotation;
/* Signal handler id */
gulong canvas_size_handler;
};
/**
* PgmViewportClass:
* @parent_class: the parent class structure.
* @button_press_event: the "button-press-event" signal.
* @button_pressure_event: the "button-pressure-event" signal.
* @button_release_event: the "button-release-event" signal.
* @key_press_event: the "key-press-event" signal.
* @key_release_event: the "key-release-event" signal.
* @configure_event: the "configure-event" signal.
* @delete_event: the "delete-event" signal.
* @scroll_event: the "scroll-event" signal.
* @motion_notify_event: the "motion-notify-event" signal.
* @expose_event: the "expose-event" signal.
* @drag_motion_event: the "drag-motion-event" signal.
* @drag_drop_event: the "drag-drop-event" signal.
* @drag_leave_event: the "drag-leave-event" signal.
* @state_event: the "state-event" signal.
* @win32_message_event: the "win32-message-event" signal.
* @pixels_read: the "pixels-read" signal.
* @update_pass: the "update-pass" signal.
* @set_title: the set_title virtual method.
* @show: the show virtual method.
* @hide: the hide virtual method.
* @set_decorated: the set_decorated virtual method.
* @set_cursor: the set_cursor virtual method.
* @set_icon: the set_icon virtual method.
* @set_size: the set_size virtual method.
* @get_size: the get_size virtual method.
* @set_alpha_blending: the set_alpha_blending virtual method.
* @set_opacity: the set_opacity virtual method.
* @set_fullscreen: the set_fullscreen virtual method.
* @set_iconified: the set_iconified virtual method.
* @focus: the focus virtual method.
* @set_screen_resolution: the set_screen_resolution virtual method.
* @get_screen_resolution: the get_screen_resolution virtual method.
* @set_screen_size_mm: the set_screen_size_mm virtual method.
* @get_screen_size_mm: the get_screen_size_mm virtual method.
* @set_canvas: the set_canvas virtual method.
* @update_projection: the update_projection virtual method.
* @get_embedding_id: the get_embedding_id virtual method.
* @get_pixel_formats: the get_pixel_formats virtual method.
* @get_caps_mask: the get_caps_mask virtual method.
* @get_max_texture_size: the get_max_texture_size virtual method.
* @get_frame_rate: the get_frame_rate virtual method.
* @set_message_filter: the set_message_filter virtual method.
* @read_pixels: the read_pixels virtual method.
* @set_drag_status: the set_drag_status virtual method.
*
* Pigment drawable class.
*/
struct _PgmViewportClass {
GstObjectClass parent_class;
/*< public >*/
/* signals */
void (*button_press_event) (PgmViewport *viewport,
PgmEventButton *event);
void (*button_pressure_event) (PgmViewport *viewport,
PgmEventButton *event);
void (*button_release_event) (PgmViewport *viewport,
PgmEventButton *event);
void (*key_press_event) (PgmViewport *viewport,
PgmEventKey *event);
void (*key_release_event) (PgmViewport *viewport,
PgmEventKey *event);
void (*configure_event) (PgmViewport *viewport,
PgmEventConfigure *event);
void (*delete_event) (PgmViewport *viewport,
PgmEvent *event);
void (*scroll_event) (PgmViewport *viewport,
PgmEventScroll *event);
void (*motion_notify_event) (PgmViewport *viewport,
PgmEventMotion *event);
void (*expose_event) (PgmViewport *viewport,
PgmEventExpose *event);
gboolean (*drag_motion_event) (PgmViewport *viewport,
PgmEventDnd *event);
void (*drag_drop_event) (PgmViewport *viewport,
PgmEventDnd *event);
void (*drag_leave_event) (PgmViewport *viewport,
PgmEventDnd *event);
void (*state_event) (PgmViewport *viewport,
PgmEventState *event);
#ifdef WIN32
LRESULT (*win32_message_event) (PgmViewport *viewport,
PgmEventWin32Message *event);
#endif /* WIN32 */
void (*pixels_read) (PgmViewport *viewport,
guint width,
guint height,
gpointer pixels);
void (*update_pass) (PgmViewport *viewport);
/* virtual methods for subclasses */
PgmError (*set_title) (PgmViewport *viewport,
const gchar *title);
PgmError (*show) (PgmViewport *viewport);
PgmError (*hide) (PgmViewport *viewport);
PgmError (*set_decorated) (PgmViewport *viewport,
gboolean decorated);
PgmError (*set_cursor) (PgmViewport *viewport,
PgmViewportCursor cursor);
PgmError (*set_icon) (PgmViewport *viewport,
GdkPixbuf *icon);
PgmError (*set_size) (PgmViewport *viewport,
gint width,
gint height);
PgmError (*get_size) (PgmViewport *viewport,
gint *width,
gint *height);
PgmError (*set_alpha_blending) (PgmViewport *viewport,
gboolean alpha_blending);
PgmError (*set_opacity) (PgmViewport *viewport,
guchar opacity);
PgmError (*set_fullscreen) (PgmViewport *viewport,
gboolean fullscreen);
PgmError (*set_iconified) (PgmViewport *viewport,
gboolean iconified);
PgmError (*focus) (PgmViewport *viewport);
PgmError (*set_screen_resolution) (PgmViewport *viewport,
gint width,
gint height);
PgmError (*get_screen_resolution) (PgmViewport *viewport,
gint *width,
gint *height);
PgmError (*set_screen_size_mm) (PgmViewport *viewport,
gint width,
gint height);
PgmError (*get_screen_size_mm) (PgmViewport *viewport,
gint *width,
gint *height);
PgmError (*set_canvas) (PgmViewport *viewport,
PgmCanvas *canvas);
PgmError (*update_projection) (PgmViewport *viewport);
PgmError (*get_embedding_id) (PgmViewport *viewport,
gulong *embedding_id);
PgmError (*get_pixel_formats) (PgmViewport *viewport,
gulong *formats_mask);
PgmError (*get_caps_mask) (PgmViewport *viewport,
gulong *caps_mask);
PgmError (*get_max_texture_size) (PgmViewport *viewport,
guint32 *max_texture_size);
PgmError (*get_frame_rate) (PgmViewport *viewport,
guint *frame_rate);
PgmError (*set_message_filter) (PgmViewport *viewport,
GList *filter);
PgmError (*read_pixels) (PgmViewport *viewport,
guint x,
guint y,
guint width,
guint height,
guint8 *pixels);
PgmError (*set_drag_status) (PgmViewport *viewport,
gboolean accept);
};
GType pgm_viewport_get_type (void);
PgmError pgm_viewport_set_title (PgmViewport *viewport,
const gchar *title);
PgmError pgm_viewport_get_title (PgmViewport *viewport,
gchar **title);
PgmError pgm_viewport_show (PgmViewport *viewport);
PgmError pgm_viewport_hide (PgmViewport *viewport);
PgmError pgm_viewport_is_visible (PgmViewport *viewport,
gboolean *visible);
PgmError pgm_viewport_set_decorated (PgmViewport *viewport,
gboolean decorated);
PgmError pgm_viewport_get_decorated (PgmViewport *viewport,
gboolean *decorated);
PgmError pgm_viewport_set_cursor (PgmViewport *viewport,
PgmViewportCursor cursor);
PgmError pgm_viewport_get_cursor (PgmViewport *viewport,
PgmViewportCursor *cursor);
PgmError pgm_viewport_set_icon (PgmViewport *viewport,
GdkPixbuf *icon);
PgmError pgm_viewport_get_icon (PgmViewport *viewport,
GdkPixbuf **icon);
PgmError pgm_viewport_set_size (PgmViewport *viewport,
gint width,
gint height);
PgmError pgm_viewport_get_size (PgmViewport *viewport,
gint *width,
gint *height);
PgmError pgm_viewport_set_alpha_blending (PgmViewport *viewport,
gboolean alpha_blending);
PgmError pgm_viewport_get_alpha_blending (PgmViewport *viewport,
gboolean *alpha_blending);
PgmError pgm_viewport_set_opacity (PgmViewport *viewport,
guchar opacity);
PgmError pgm_viewport_get_opacity (PgmViewport *viewport,
guchar *opacity);
PgmError pgm_viewport_set_fullscreen (PgmViewport *viewport,
gboolean fullscreen);
PgmError pgm_viewport_get_fullscreen (PgmViewport *viewport,
gboolean *fullscreen);
PgmError pgm_viewport_set_iconified (PgmViewport *viewport,
gboolean iconified);
PgmError pgm_viewport_get_iconified (PgmViewport *viewport,
gboolean *iconified);
PgmError pgm_viewport_focus (PgmViewport *viewport);
PgmError pgm_viewport_set_screen_resolution (PgmViewport *viewport,
gint width,
gint height);
PgmError pgm_viewport_get_screen_resolution (PgmViewport *viewport,
gint *width,
gint *height);
PgmError pgm_viewport_set_screen_size_mm (PgmViewport *viewport,
gint width,
gint height);
PgmError pgm_viewport_get_screen_size_mm (PgmViewport *viewport,
gint *width,
gint *height);
PgmError pgm_viewport_push_event (PgmViewport *viewport,
PgmEvent *event);
PgmError pgm_viewport_get_canvas (PgmViewport *viewport,
PgmCanvas **canvas);
PgmError pgm_viewport_set_canvas (PgmViewport *viewport,
PgmCanvas *canvas);
PgmError pgm_viewport_set_canvas_rotation (PgmViewport *viewport,
PgmViewportRotation rotation);
PgmError pgm_viewport_get_canvas_rotation (PgmViewport *viewport,
PgmViewportRotation *rotation);
PgmError pgm_viewport_set_canvas_reflection (PgmViewport *viewport,
PgmViewportReflection reflection);
PgmError pgm_viewport_get_canvas_reflection (PgmViewport *viewport,
PgmViewportReflection *reflection);
PgmError pgm_viewport_set_message_filter (PgmViewport *viewport,
GList *filter);
PgmError pgm_viewport_get_message_filter (PgmViewport *viewport,
GList **filter);
PgmError pgm_viewport_update_projection (PgmViewport *viewport);
PgmError pgm_viewport_to_canvas (PgmViewport *viewport,
gfloat *canvas_x,
gfloat *canvas_y,
gfloat *canvas_z,
gfloat viewport_x,
gfloat viewport_y,
gfloat viewport_z);
PgmError pgm_viewport_from_canvas (PgmViewport *viewport,
gfloat *viewport_x,
gfloat *viewport_y,
gfloat *viewport_z,
gfloat canvas_x,
gfloat canvas_y,
gfloat canvas_z);
PgmError pgm_viewport_get_embedding_id (PgmViewport *viewport,
gulong *embedding_id);
PgmError pgm_viewport_get_pixel_formats (PgmViewport *viewport,
gulong *formats_mask);
PgmError pgm_viewport_get_caps_mask (PgmViewport *viewport,
gulong *caps_mask);
PgmError pgm_viewport_get_max_texture_size (PgmViewport *viewport,
guint32 *max_texture_size);
PgmError pgm_viewport_get_frame_rate (PgmViewport *viewport,
guint *frame_rate);
PgmError pgm_viewport_read_pixels (PgmViewport *viewport,
guint x,
guint y,
guint width,
guint height,
guint8 *pixels);
PgmError pgm_viewport_push_pixels (PgmViewport *viewport,
guint width,
guint height,
guint8 *pixels);
PgmError pgm_viewport_emit_update_pass (PgmViewport *viewport);
/* Protected methods */
#ifdef WIN32
PgmError _pgm_viewport_push_win32_message (PgmViewport *viewport,
PgmEvent *event,
gint32 *message_processed,
LRESULT *result);
#endif /* WIN32 */
G_END_DECLS
#endif /* __PGM_VIEWPORT_H__ */
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