/usr/include/FL/Fl_Image_Surface.H is in libfltk1.3-dev 1.3.4-4.
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// "$Id: Fl_Image_Surface.H 11156 2016-02-11 20:42:51Z manolo $"
//
// Draw-to-image code for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2014 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#ifndef Fl_Image_Surface_H
#define Fl_Image_Surface_H
#include <FL/Fl_Copy_Surface.H>
#include <FL/Fl_Image.H>
#include <FL/Fl_Shared_Image.H>
/** Directs all graphics requests to an Fl_Image.
After creation of an Fl_Image_Surface object, call set_current() on it, and all subsequent graphics requests
will be recorded in the image. It's possible to draw widgets (using Fl_Image_Surface::draw())
or to use any of the \ref fl_drawings or the \ref fl_attributes.
Finally, call image() on the object to obtain a newly allocated Fl_RGB_Image object.
<br> Fl_GL_Window objects can be drawn in the image as well.
<br> Usage example:
\code
Fl_Widget *g = ...; // a widget you want to draw in an image
Fl_Image_Surface *img_surf = new Fl_Image_Surface(g->w(), g->h()); // create an Fl_Image_Surface object
img_surf->set_current(); // direct graphics requests to the image
fl_color(FL_WHITE); fl_rectf(0, 0, g->w(), g->h()); // draw a white background
img_surf->draw(g); // draw the g widget in the image
Fl_RGB_Image* image = img_surf->image(); // get the resulting image
delete img_surf; // delete the img_surf object
Fl_Display_Device::display_device()->set_current(); // direct graphics requests back to the display
\endcode
*/
class FL_EXPORT Fl_Image_Surface : public Fl_Surface_Device {
private:
void prepare_(int w, int h, int highres);
Fl_Offscreen offscreen;
int width;
int height;
Fl_Paged_Device *helper;
#ifdef __APPLE__
#elif defined(WIN32)
HDC _sgc;
Window _sw;
Fl_Surface_Device *_ss;
int _savedc;
#else
Fl_Surface_Device *previous;
Window pre_window;
GC gc;
#endif
public:
static const char *class_id;
const char *class_name() {return class_id;};
#if FLTK_ABI_VERSION >= 10304 || defined(FL_DOXYGEN)
Fl_Image_Surface(int w, int h, int highres = 0);
#else
Fl_Image_Surface(int w, int h, int highres);
Fl_Image_Surface(int w, int h);
#endif
~Fl_Image_Surface();
void set_current();
void draw(Fl_Widget*, int delta_x = 0, int delta_y = 0);
void draw_decorated_window(Fl_Window* win, int delta_x = 0, int delta_y = 0);
Fl_RGB_Image *image();
Fl_Shared_Image *highres_image();
};
#ifdef __APPLE__
/* Mac class to implement translate()/untranslate() for a flipped bitmap graphics context */
class FL_EXPORT Fl_Quartz_Flipped_Surface_ : public Fl_Quartz_Surface_ {
public:
static const char *class_id;
const char *class_name() {return class_id;};
Fl_Quartz_Flipped_Surface_(int w, int h);
void translate(int x, int y);
void untranslate();
virtual ~Fl_Quartz_Flipped_Surface_() {};
};
#endif
#endif // Fl_Image_Surface_H
//
// End of "$Id: Fl_Image_Surface.H 11156 2016-02-11 20:42:51Z manolo $".
//
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