fltk/FL/x.H

146 lines
4.8 KiB
C++

//
// "$Id$"
//
// X11 header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2005 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//
// These are internal fltk symbols that are necessary or useful for
// calling Xlib. You should include this file if (and ONLY if) you
// need to call Xlib directly. These symbols may not exist on non-X
// systems.
#ifndef Fl_X_H
# define Fl_X_H
# include "Enumerations.H"
# ifdef WIN32
# include "win32.H"
# elif defined(__APPLE__)
# include "mac.H"
# else
# if defined(_ABIN32) || defined(_ABI64) // fix for broken SGI Irix X .h files
# pragma set woff 3322
# endif
# include <X11/Xlib.h>
# include <X11/Xutil.h>
# if defined(_ABIN32) || defined(_ABI64)
# pragma reset woff 3322
# endif
# include <X11/Xatom.h>
# include "Fl_Window.H"
// Mirror X definition of Region to Fl_Region, for portability...
typedef Region Fl_Region;
FL_EXPORT void fl_open_display();
FL_EXPORT void fl_open_display(Display*);
FL_EXPORT void fl_close_display();
// constant info about the X server connection:
extern FL_EXPORT Display *fl_display;
extern FL_EXPORT Window fl_message_window;
extern FL_EXPORT int fl_screen;
extern FL_EXPORT XVisualInfo *fl_visual;
extern FL_EXPORT Colormap fl_colormap;
// drawing functions:
extern FL_EXPORT GC fl_gc;
extern FL_EXPORT Window fl_window;
extern FL_EXPORT XFontStruct* fl_xfont;
FL_EXPORT ulong fl_xpixel(Fl_Color i);
FL_EXPORT ulong fl_xpixel(uchar r, uchar g, uchar b);
FL_EXPORT void fl_clip_region(Fl_Region);
FL_EXPORT Fl_Region fl_clip_region();
FL_EXPORT Fl_Region XRectangleRegion(int x, int y, int w, int h); // in fl_rect.cxx
// feed events into fltk:
FL_EXPORT int fl_handle(const XEvent&);
// you can use these in Fl::add_handler() to look at events:
extern FL_EXPORT const XEvent* fl_xevent;
extern FL_EXPORT ulong fl_event_time;
// off-screen pixmaps: create, destroy, draw into, copy to window:
typedef ulong Fl_Offscreen;
#define fl_create_offscreen(w,h) \
XCreatePixmap(fl_display, fl_window, w, h, fl_visual->depth)
// begin/end are macros that save the old state in local variables:
# define fl_begin_offscreen(pixmap) \
Window _sw=fl_window; fl_window=pixmap; fl_push_no_clip()
# define fl_end_offscreen() \
fl_pop_clip(); fl_window = _sw
# define fl_copy_offscreen(x,y,w,h,pixmap,srcx,srcy) \
XCopyArea(fl_display, pixmap, fl_window, fl_gc, srcx, srcy, w, h, x, y)
# define fl_delete_offscreen(pixmap) XFreePixmap(fl_display, pixmap)
// Bitmap masks
typedef ulong Fl_Bitmask;
extern FL_EXPORT Fl_Bitmask fl_create_bitmask(int w, int h, const uchar *data);
extern FL_EXPORT Fl_Bitmask fl_create_alphamask(int w, int h, int d, int ld, const uchar *data);
extern FL_EXPORT void fl_delete_bitmask(Fl_Bitmask bm);
// this object contains all X-specific stuff about a window:
// Warning: this object is highly subject to change! It's definition
// is only here so that fl_xid can be declared inline:
class FL_EXPORT Fl_X {
public:
Window xid;
Window other_xid;
Fl_Window *w;
Fl_Region region;
Fl_X *next;
char wait_for_expose;
char backbuffer_bad; // used for XDBE
static Fl_X* first;
static Fl_X* i(const Fl_Window* wi) {return wi->i;}
void setwindow(Fl_Window* wi) {w=wi; wi->i=this;}
void sendxjunk();
static void make_xid(Fl_Window*,XVisualInfo* =fl_visual, Colormap=fl_colormap);
static Fl_X* set_xid(Fl_Window*, Window);
// kludges to get around protection:
void flush() {w->flush();}
static void x(Fl_Window* wi, int X) {wi->x(X);}
static void y(Fl_Window* wi, int Y) {wi->y(Y);}
};
// convert xid <-> Fl_Window:
inline Window fl_xid(const Fl_Window*w) {return Fl_X::i(w)->xid;}
FL_EXPORT Fl_Window* fl_find(Window xid);
extern FL_EXPORT char fl_override_redirect; // hack into Fl_X::make_xid()
extern FL_EXPORT int fl_background_pixel; // hack into Fl_X::make_xid()
// Dummy function to register a function for opening files via the window manager...
inline void fl_open_callback(void (*)(const char *)) {}
extern FL_EXPORT int fl_parse_color(const char* p, uchar& r, uchar& g, uchar& b);
# endif
#endif
//
// End of "$Id$".
//