06e7d0092d
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11378 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
//
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// "$Id: Fl_Xlib_Image_Surface.cxx 11278 2016-03-03 19:16:22Z manolo $"
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//
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// Draw-to-image code for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2016 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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#include <FL/fl_draw.H>
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#include "../../config_lib.h"
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#ifdef FL_CFG_GFX_XLIB
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#include "Fl_Xlib_Graphics_Driver.H"
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#include <FL/Fl_Image_Surface.H>
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#include "Fl_Translated_Xlib_Graphics_Driver.H"
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class Fl_Xlib_Image_Surface_Driver : public Fl_Image_Surface_Driver {
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friend class Fl_Image_Surface;
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public:
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Fl_Surface_Device *previous;
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Window pre_window;
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int was_high;
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Fl_Xlib_Image_Surface_Driver(int w, int h, int high_res, Fl_Offscreen off);
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~Fl_Xlib_Image_Surface_Driver();
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void set_current();
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void translate(int x, int y);
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void untranslate();
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Fl_RGB_Image *image();
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void end_current();
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};
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Fl_Image_Surface_Driver *Fl_Image_Surface_Driver::newImageSurfaceDriver(int w, int h, int high_res, Fl_Offscreen off)
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{
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return new Fl_Xlib_Image_Surface_Driver(w, h, high_res, off);
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}
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Fl_Xlib_Image_Surface_Driver::Fl_Xlib_Image_Surface_Driver(int w, int h, int high_res, Fl_Offscreen off) : Fl_Image_Surface_Driver(w, h, high_res, off) {
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previous = 0;
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if (!off) {
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fl_open_display();
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offscreen = XCreatePixmap(fl_display, RootWindow(fl_display, fl_screen), w, h, fl_visual->depth);
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}
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driver(new Fl_Translated_Xlib_Graphics_Driver());
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}
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Fl_Xlib_Image_Surface_Driver::~Fl_Xlib_Image_Surface_Driver() {
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if (offscreen) XFreePixmap(fl_display, offscreen);
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}
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void Fl_Xlib_Image_Surface_Driver::set_current() {
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pre_window = fl_window;
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if (!previous) previous = Fl_Surface_Device::surface();
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fl_window = offscreen;
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Fl_Surface_Device::set_current();
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fl_push_no_clip();
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}
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void Fl_Xlib_Image_Surface_Driver::translate(int x, int y) {
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((Fl_Translated_Xlib_Graphics_Driver*)driver())->translate_all(x, y);
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}
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void Fl_Xlib_Image_Surface_Driver::untranslate() {
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((Fl_Translated_Xlib_Graphics_Driver*)driver())->untranslate_all();
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}
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Fl_RGB_Image* Fl_Xlib_Image_Surface_Driver::image()
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{
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unsigned char *data = fl_read_image(NULL, 0, 0, width, height, 0);
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end_current();
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Fl_RGB_Image *image = new Fl_RGB_Image(data, width, height);
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image->alloc_array = 1;
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return image;
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}
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void Fl_Xlib_Image_Surface_Driver::end_current()
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{
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fl_pop_clip();
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previous->Fl_Surface_Device::set_current();
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fl_window = pre_window;
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}
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#endif // FL_CFG_GFX_XLIB
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//
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// End of "$Id: Fl_Xlib_Image_Surface.cxx 11220 2016-02-26 12:51:47Z manolo $".
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//
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