109 lines
2.9 KiB
C++
109 lines
2.9 KiB
C++
//
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// Copy-to-clipboard code for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2023 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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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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#include <config.h>
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#include "Fl_Xlib_Copy_Surface_Driver.H"
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#include <FL/Fl.H>
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#include <FL/platform.H>
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#include <FL/Fl_Image_Surface.H>
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#include <FL/fl_draw.H>
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#include "../X11/Fl_X11_Screen_Driver.H"
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#if FLTK_USE_CAIRO
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# include <cairo-xlib.h>
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# include "../Cairo/Fl_X11_Cairo_Graphics_Driver.H"
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# include <cairo/cairo.h>
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#else
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# include "Fl_Xlib_Graphics_Driver.H"
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#endif // FLTK_USE_CAIRO
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Fl_Xlib_Copy_Surface_Driver::Fl_Xlib_Copy_Surface_Driver(int w, int h) : Fl_Copy_Surface_Driver(w, h) {
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#if FLTK_USE_CAIRO
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driver(new Fl_X11_Cairo_Graphics_Driver());
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#else
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driver(new Fl_Xlib_Graphics_Driver());
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#endif
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float s = Fl_Graphics_Driver::default_driver().scale();
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driver()->scale(s);
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oldwindow = fl_window;
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xid = new Fl_Image_Surface(w, h, 1);
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#if FLTK_USE_CAIRO
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cairo_surface_t *surf = cairo_xlib_surface_create(fl_display, xid->offscreen(), fl_visual->visual, w * s, h * s);
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cairo_ = cairo_create(surf);
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cairo_surface_destroy(surf);
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cairo_scale(cairo_, 1/s, 1/s);
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cairo_save(cairo_);
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((Fl_X11_Cairo_Graphics_Driver*)driver())->set_cairo(cairo_);
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#endif
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driver()->push_no_clip();
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fl_window = xid->offscreen();
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driver()->color(FL_WHITE);
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driver()->rectf(0, 0, w, h);
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fl_window = oldwindow;
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}
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Fl_Xlib_Copy_Surface_Driver::~Fl_Xlib_Copy_Surface_Driver() {
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driver()->pop_clip();
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Window old_win = fl_window;
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fl_window = xid->offscreen();
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Fl_RGB_Image *rgb = Fl::screen_driver()->read_win_rectangle(0, 0, width, height, 0);
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fl_window = old_win;
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if (is_current()) end_current();
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Fl_X11_Screen_Driver::copy_image(rgb->array, rgb->w(), rgb->h(), 1);
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delete rgb;
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delete xid;
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#if FLTK_USE_CAIRO
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cairo_destroy(cairo_);
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#endif
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delete driver();
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}
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void Fl_Xlib_Copy_Surface_Driver::set_current() {
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Fl_Surface_Device::set_current();
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oldwindow = fl_window;
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fl_window = xid->offscreen();
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#if FLTK_USE_CAIRO
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((Fl_X11_Cairo_Graphics_Driver*)driver())->set_cairo(cairo_);
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#endif
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}
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void Fl_Xlib_Copy_Surface_Driver::end_current() {
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fl_window = oldwindow;
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Fl_Surface_Device::end_current();
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}
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void Fl_Xlib_Copy_Surface_Driver::translate(int x, int y) {
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#if FLTK_USE_CAIRO
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cairo_save(cairo_);
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cairo_translate(cairo_, x, y);
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#else
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((Fl_Xlib_Graphics_Driver*)driver())->translate_all(x, y);
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#endif
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}
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void Fl_Xlib_Copy_Surface_Driver::untranslate() {
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#if FLTK_USE_CAIRO
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cairo_restore(cairo_);
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#else
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((Fl_Xlib_Graphics_Driver*)driver())->untranslate_all();
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#endif
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}
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