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x.H

    00001 //
    00002 // "$Id: x.H 9299 2012-03-23 16:47:53Z manolo $"
    00003 //
    00004 // X11 header file for the Fast Light Tool Kit (FLTK).
    00005 //
    00006 // Copyright 1998-2012 by Bill Spitzak and others.
    00007 //
    00008 // This library is free software. Distribution and use rights are outlined in
    00009 // the file "COPYING" which should have been included with this file.  If this
    00010 // file is missing or damaged, see the license at:
    00011 //
    00012 //     http://www.fltk.org/COPYING.php
    00013 //
    00014 // Please report all bugs and problems on the following page:
    00015 //
    00016 //     http://www.fltk.org/str.php
    00017 //
    00018
    00019 // These are internal fltk symbols that are necessary or useful for
    00020 // calling Xlib.  You should include this file if (and ONLY if) you
    00021 // need to call Xlib directly.  These symbols may not exist on non-X
    00022 // systems.
    00023
    00035 #if !defined(Fl_X_H) && !defined(FL_DOXYGEN)
    00036 #  define Fl_X_H
    00037
    00038 #  include "Enumerations.H"
    00039
    00040 #  ifdef WIN32
    00041 #    include "win32.H"
    00042 #  elif defined(__APPLE__)
    00043 #    include "mac.H"
    00044 #  else
    00045 #    if defined(_ABIN32) || defined(_ABI64) // fix for broken SGI Irix X .h files
    00046 #      pragma set woff 3322
    00047 #    endif
    00048 #    include <X11/Xlib.h>
    00049 #    include <X11/Xutil.h>
    00050 #    if defined(_ABIN32) || defined(_ABI64)
    00051 #      pragma reset woff 3322
    00052 #    endif
    00053 #    include <X11/Xatom.h>
    00054 #    include "Fl_Window.H"
    00055 #    include "Xutf8.h"
    00056 // Mirror X definition of Region to Fl_Region, for portability...
    00057 typedef Region Fl_Region;
    00058
    00059 FL_EXPORT void fl_open_display();
    00060 FL_EXPORT void fl_open_display(Display*);
    00061 FL_EXPORT void fl_close_display();
    00062
    00063 // constant info about the X server connection:
    00064 extern FL_EXPORT Display *fl_display;
    00065 extern FL_EXPORT int fl_screen;
    00066 extern FL_EXPORT XVisualInfo *fl_visual;
    00067 extern FL_EXPORT Colormap fl_colormap;
    00068
    00069
    00070 // drawing functions:
    00071 extern FL_EXPORT GC fl_gc;
    00072 extern FL_EXPORT Window fl_window;
    00073 FL_EXPORT ulong fl_xpixel(Fl_Color i);
    00074 FL_EXPORT ulong fl_xpixel(uchar r, uchar g, uchar b);
    00075 FL_EXPORT void fl_clip_region(Fl_Region);
    00076 FL_EXPORT Fl_Region fl_clip_region();
    00077
    00078 // feed events into fltk:
    00079 FL_EXPORT int fl_handle(const XEvent&);
    00080
    00081 // you can use these in Fl::add_handler() to look at events:
    00082 extern FL_EXPORT const XEvent* fl_xevent;
    00083 extern FL_EXPORT ulong fl_event_time;
    00084
    00085 // off-screen pixmaps: create, destroy, draw into, copy to window:
    00086 typedef ulong Fl_Offscreen;
    00087 #   define fl_create_offscreen(w,h) \
    00088   XCreatePixmap(fl_display, \
    00089               (Fl_Surface_Device::surface() == Fl_Display_Device::display_device() ? \
    00090               fl_window : fl_xid(Fl::first_window()) ) , \
    00091               w, h, fl_visual->depth)
    00092 // begin/end are macros that save the old state in local variables:
    00093 #    define fl_begin_offscreen(pixmap) \
    00094   Window _sw=fl_window; fl_window=pixmap; \
    00095   Fl_Surface_Device *_ss = Fl_Surface_Device::surface(); Fl_Display_Device::display_device()->set_current(); \
    00096   fl_push_no_clip()
    00097 #    define fl_end_offscreen() \
    00098   fl_pop_clip(); fl_window = _sw; _ss->set_current()
    00099
    00100 extern void fl_copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
    00101 #    define fl_delete_offscreen(pixmap) XFreePixmap(fl_display, pixmap)
    00102
    00103 // Bitmap masks
    00104 typedef ulong Fl_Bitmask;
    00105
    00106 extern FL_EXPORT Fl_Bitmask fl_create_bitmask(int w, int h, const uchar *data);
    00107 extern FL_EXPORT Fl_Bitmask fl_create_alphamask(int w, int h, int d, int ld, const uchar *data);
    00108 extern FL_EXPORT void fl_delete_bitmask(Fl_Bitmask bm);
    00109
    00110 #if defined(FL_LIBRARY) || defined(FL_INTERNALS)
    00111 extern FL_EXPORT Window fl_message_window;
    00112 extern FL_EXPORT void *fl_xftfont;
    00113 FL_EXPORT Fl_Region XRectangleRegion(int x, int y, int w, int h); // in fl_rect.cxx
    00114
    00115 // access to core fonts:
    00116 // This class provides a "smart pointer" that returns a pointer to an XFontStruct.
    00117 // The global variable fl_xfont can be called wherever a bitmap "core" font is
    00118 // needed, e.g. when rendering to a GL context under X11.
    00119 // With Xlib / X11 fonts, fl_xfont will return the current selected font.
    00120 // With XFT / X11 fonts, fl_xfont will attempt to return the bitmap "core" font most
    00121 // similar to (usually the same as) the current XFT font.
    00122 class Fl_XFont_On_Demand
    00123 {
    00124 public:
    00125   Fl_XFont_On_Demand(XFontStruct* p = NULL) : ptr(p) { }
    00126   Fl_XFont_On_Demand& operator=(const Fl_XFont_On_Demand& x)
    00127   { ptr = x.ptr;  return *this; }
    00128   Fl_XFont_On_Demand& operator=(XFontStruct* p)
    00129   { ptr = p;  return *this; }
    00130   XFontStruct* value();
    00131   operator XFontStruct*() { return value(); }
    00132   XFontStruct& operator*() { return *value(); }
    00133   XFontStruct* operator->() { return value(); }
    00134   bool operator==(const Fl_XFont_On_Demand& x) { return ptr == x.ptr; }
    00135   bool operator!=(const Fl_XFont_On_Demand& x) { return ptr != x.ptr; }
    00136 private:
    00137   XFontStruct *ptr;
    00138 };
    00139 extern FL_EXPORT Fl_XFont_On_Demand fl_xfont;
    00140
    00141 // this object contains all X-specific stuff about a window:
    00142 // Warning: this object is highly subject to change!
    00143 // FL_LIBRARY or FL_INTERNALS must be defined to access this class.
    00144 class FL_EXPORT Fl_X {
    00145 public:
    00146   Window xid;
    00147   Window other_xid;
    00148   Fl_Window *w;
    00149   Fl_Region region;
    00150   Fl_X *next;
    00151   char wait_for_expose;
    00152   char backbuffer_bad; // used for XDBE
    00153   static Fl_X* first;
    00154   static Fl_X* i(const Fl_Window* wi) {return wi->i;}
    00155   void setwindow(Fl_Window* wi) {w=wi; wi->i=this;}
    00156   void sendxjunk();
    00157   static void make_xid(Fl_Window*,XVisualInfo* =fl_visual, Colormap=fl_colormap);
    00158   static Fl_X* set_xid(Fl_Window*, Window);
    00159   // kludges to get around protection:
    00160   void flush() {w->flush();}
    00161   static void x(Fl_Window* wi, int X) {wi->x(X);}
    00162   static void y(Fl_Window* wi, int Y) {wi->y(Y);}
    00163   static int ewmh_supported();
    00164 };
    00165
    00166 extern FL_EXPORT char fl_override_redirect; // hack into Fl_X::make_xid()
    00167 extern FL_EXPORT int fl_background_pixel;  // hack into Fl_X::make_xid()
    00168
    00169 inline Window fl_xid(const Fl_Window* w) { Fl_X *xTemp = Fl_X::i(w); return xTemp ? xTemp->xid : 0; }
    00170
    00171 #else
    00172
    00173 extern Window fl_xid_(const Fl_Window* w);
    00174 #define fl_xid(w) fl_xid_(w)
    00175
    00176 #endif // FL_LIBRARY || FL_INTERNALS
    00177
    00178 FL_EXPORT Fl_Window* fl_find(Window xid);
    00179
    00180
    00181 // Dummy function to register a function for opening files via the window manager...
    00182 inline void fl_open_callback(void (*)(const char *)) {}
    00183
    00184 extern FL_EXPORT int fl_parse_color(const char* p, uchar& r, uchar& g, uchar& b);
    00185
    00186 #  endif
    00187 #endif
    00188
    00189 //
    00190 // End of "$Id: x.H 9299 2012-03-23 16:47:53Z manolo $".
    00191 //