1b548ae1d5
the static method Fl_Surface_Device::surface() can be called before main() starts. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10970 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
//
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// "$Id$"
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//
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// implementation of Fl_Device class for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 2010-2012 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 to:
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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.H>
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#include <FL/Fl_Device.H>
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#include <FL/Fl_Image.H>
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const char *Fl_Device::class_id = "Fl_Device";
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const char *Fl_Surface_Device::class_id = "Fl_Surface_Device";
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const char *Fl_Display_Device::class_id = "Fl_Display_Device";
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const char *Fl_Graphics_Driver::class_id = "Fl_Graphics_Driver";
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#if defined(__APPLE__) || defined(FL_DOXYGEN)
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const char *Fl_Quartz_Graphics_Driver::class_id = "Fl_Quartz_Graphics_Driver";
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# ifndef FL_DOXYGEN
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bool Fl_Display_Device::high_res_window_ = false;
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# endif
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#endif
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#if defined(WIN32) || defined(FL_DOXYGEN)
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const char *Fl_GDI_Graphics_Driver::class_id = "Fl_GDI_Graphics_Driver";
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const char *Fl_GDI_Printer_Graphics_Driver::class_id = "Fl_GDI_Printer_Graphics_Driver";
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#endif
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#if !(defined(__APPLE__) || defined(WIN32))
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const char *Fl_Xlib_Graphics_Driver::class_id = "Fl_Xlib_Graphics_Driver";
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#endif
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/** \brief Make this surface the current drawing surface.
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This surface will receive all future graphics requests. */
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void Fl_Surface_Device::set_current(void)
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{
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fl_graphics_driver = _driver;
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_surface = this;
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}
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FL_EXPORT Fl_Graphics_Driver *fl_graphics_driver; // the current target device of graphics operations
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Fl_Surface_Device* Fl_Surface_Device::_surface; // the current target surface of graphics operations
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const Fl_Graphics_Driver::matrix Fl_Graphics_Driver::m0 = {1, 0, 0, 1, 0, 0};
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Fl_Graphics_Driver::Fl_Graphics_Driver() {
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font_ = 0;
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size_ = 0;
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sptr=0; rstackptr=0;
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rstack[0] = NULL;
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fl_clip_state_number=0;
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m = m0;
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fl_matrix = &m;
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p = (XPOINT *)0;
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font_descriptor_ = NULL;
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p_size = 0;
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};
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void Fl_Graphics_Driver::text_extents(const char*t, int n, int& dx, int& dy, int& w, int& h)
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{
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w = (int)width(t, n);
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h = - height();
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dx = 0;
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dy = descent();
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}
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/** A constructor that sets the graphics driver used by the display */
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Fl_Display_Device::Fl_Display_Device(Fl_Graphics_Driver *graphics_driver) : Fl_Surface_Device(graphics_driver) {
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this->set_current();
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};
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/** Returns the platform display device. */
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Fl_Display_Device *Fl_Display_Device::display_device() {
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static Fl_Display_Device *display = new Fl_Display_Device(new
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#if defined(__APPLE__)
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Fl_Quartz_Graphics_Driver
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#elif defined(WIN32)
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Fl_GDI_Graphics_Driver
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#else
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Fl_Xlib_Graphics_Driver
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#endif
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);
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return display;
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};
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Fl_Surface_Device *Fl_Surface_Device::default_surface()
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{
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return Fl_Display_Device::display_device();
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}
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Fl_Display_Device *Fl_Display_Device::_display = Fl_Display_Device::display_device();
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//
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// End of "$Id$".
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//
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