/[rdesktop]/sourceforge.net/trunk/rdesktop/xwin.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 185 by n-ki, Wed Sep 18 12:13:08 2002 UTC revision 192 by matthewc, Tue Sep 24 07:59:14 2002 UTC
# Line 22  Line 22 
22  #include <X11/Xutil.h>  #include <X11/Xutil.h>
23  #include <time.h>  #include <time.h>
24  #include <errno.h>  #include <errno.h>
 #define XK_MISCELLANY  
 #include <X11/keysymdef.h>  
25  #include "rdesktop.h"  #include "rdesktop.h"
 #include "scancodes.h"  
26    
27  extern int width;  extern int width;
28  extern int height;  extern int height;
# Line 33  extern BOOL sendmotion; Line 30  extern BOOL sendmotion;
30  extern BOOL fullscreen;  extern BOOL fullscreen;
31  extern BOOL grab_keyboard;  extern BOOL grab_keyboard;
32  extern char title[];  extern char title[];
33    BOOL enable_compose = False;
34    
35  Display *display;  Display *display;
36  static int x_socket;  static int x_socket;
# Line 42  static GC gc; Line 40  static GC gc;
40  static Visual *visual;  static Visual *visual;
41  static int depth;  static int depth;
42  static int bpp;  static int bpp;
43    static XIM IM;
44    static XIC IC;
45    static Cursor current_cursor;
46    
47  /* endianness */  /* endianness */
48  static BOOL host_be;  static BOOL host_be;
# Line 62  static Pixmap backstore; Line 63  static Pixmap backstore;
63  static Colormap xcolmap;  static Colormap xcolmap;
64  static uint32 *colmap;  static uint32 *colmap;
65    
 /* Compose support */  
 BOOL enable_compose = False;  
 static XIM IM = NULL;  
 static XIC IC = NULL;  
   
 /* toggle fullscreen globals */  
 static unsigned long input_mask;  
   
66  #define SET_FOREGROUND(col)     XSetForeground(display, gc, translate_colour(colmap[col]));  #define SET_FOREGROUND(col)     XSetForeground(display, gc, translate_colour(colmap[col]));
67  #define SET_BACKGROUND(col)     XSetBackground(display, gc, translate_colour(colmap[col]));  #define SET_BACKGROUND(col)     XSetBackground(display, gc, translate_colour(colmap[col]));
68    
# Line 189  translate_colour(uint32 colour) Line 182  translate_colour(uint32 colour)
182          return colour;          return colour;
183  }  }
184    
 static unsigned long  
 init_inputmethod(void)  
 {  
         unsigned long filtered_events = 0;  
   
         IM = XOpenIM(display, NULL, NULL, NULL);  
         if (IM == NULL)  
         {  
                 error("Failed to open input method\n");  
         }  
   
         if (IM != NULL)  
         {  
                 /* Must be done after XCreateWindow */  
                 IC = XCreateIC(IM, XNInputStyle,  
                                (XIMPreeditNothing | XIMStatusNothing),  
                                XNClientWindow, wnd, XNFocusWindow, wnd, NULL);  
   
                 if (IC == NULL)  
                 {  
                         error("Failed to create input context\n");  
                         XCloseIM(IM);  
                         IM = NULL;  
                 }  
         }  
   
         /* For correct Multi_key/Compose processing, I guess.  
            It seems to work alright anyway, though. */  
         if (IC != NULL)  
         {  
                 if (XGetICValues(IC, XNFilterEvents, &filtered_events, NULL) != NULL)  
                 {  
                         error("Failed to obtain XNFilterEvents value from IC\n");  
                         filtered_events = 0;  
                 }  
         }  
         return filtered_events;  
 }  
   
 static void  
 close_inputmethod(void)  
 {  
         if (IC != NULL)  
         {  
                 XDestroyIC(IC);  
                 if (IM != NULL)  
                 {  
                         XCloseIM(IM);  
                         IM = NULL;  
                 }  
         }  
 }  
   
185  BOOL  BOOL
186  get_key_state(int keysym)  get_key_state(int keysym)
187  {  {
# Line 276  get_key_state(int keysym) Line 216  get_key_state(int keysym)
216          return (current_state & keysymMask) ? True : False;          return (current_state & keysymMask) ? True : False;
217  }  }
218    
 static void  
 xwin_map_window()  
 {  
         XEvent xevent;  
   
         XMapWindow(display, wnd);  
   
         /* wait for VisibilityChange */  
         XMaskEvent(display, VisibilityChangeMask, &xevent);  
   
         if (fullscreen)  
                 XSetInputFocus(display, wnd, RevertToPointerRoot, CurrentTime);  
 }  
   
219  BOOL  BOOL
220  ui_init()  ui_init(void)
221  {  {
222          XPixmapFormatValues *pfm;          XPixmapFormatValues *pfm;
223          uint16 test;          uint16 test;
# Line 332  ui_init() Line 258  ui_init()
258          }          }
259    
260          xcolmap = DefaultColormapOfScreen(screen);          xcolmap = DefaultColormapOfScreen(screen);
261            gc = XCreateGC(display, RootWindowOfScreen(screen), 0, NULL);
262    
263          if (DoesBackingStore(screen) == NotUseful)          if (DoesBackingStore(screen) != Always)
264                  ownbackstore = True;                  ownbackstore = True;
265    
266          test = 1;          test = 1;
# Line 349  ui_init() Line 276  ui_init()
276          /* make sure width is a multiple of 4 */          /* make sure width is a multiple of 4 */
277          width = (width + 3) & ~3;          width = (width + 3) & ~3;
278    
279            if (ownbackstore)
280            {
281                    backstore = XCreatePixmap(display, RootWindowOfScreen(screen), width, height, depth);
282    
283                    /* clear to prevent rubbish being exposed at startup */
284                    XSetForeground(display, gc, BlackPixelOfScreen(screen));
285                    XFillRectangle(display, backstore, gc, 0, 0, width, height);
286            }
287    
288            if (enable_compose)
289                    IM = XOpenIM(display, NULL, NULL, NULL);
290    
291          xkeymap_init();          xkeymap_init();
292          return True;          return True;
293  }  }
294    
295    void
296    ui_deinit(void)
297    {
298            if (IM != NULL)
299                    XCloseIM(IM);
300    
301            if (ownbackstore)
302                    XFreePixmap(display, backstore);
303    
304            XFreeGC(display, gc);
305            XCloseDisplay(display);
306            display = NULL;
307    }
308    
309  BOOL  BOOL
310  ui_create_window()  ui_create_window(void)
311  {  {
312          XSetWindowAttributes attribs;          XSetWindowAttributes attribs;
313          XClassHint *classhints;          XClassHint *classhints;
314          XSizeHints *sizehints;          XSizeHints *sizehints;
315            int wndwidth, wndheight;
316            long input_mask, ic_input_mask;
317          XEvent xevent;          XEvent xevent;
318    
319            wndwidth  = fullscreen ? WidthOfScreen(screen)  : width;
320            wndheight = fullscreen ? HeightOfScreen(screen) : height;
321    
322          attribs.background_pixel = BlackPixelOfScreen(screen);          attribs.background_pixel = BlackPixelOfScreen(screen);
323          attribs.backing_store = ownbackstore ? NotUseful : Always;          attribs.backing_store = ownbackstore ? NotUseful : Always;
324          attribs.override_redirect = fullscreen;          attribs.override_redirect = fullscreen;
325          wnd = XCreateWindow(display, RootWindowOfScreen(screen), 0, 0, width, height,  
326            wnd = XCreateWindow(display, RootWindowOfScreen(screen), 0, 0, wndwidth, wndheight,
327                              0, CopyFromParent, InputOutput, CopyFromParent,                              0, CopyFromParent, InputOutput, CopyFromParent,
328                              CWBackPixel | CWBackingStore | CWOverrideRedirect, &attribs);                              CWBackPixel | CWBackingStore | CWOverrideRedirect, &attribs);
329    
         if (ownbackstore)  
                 backstore = XCreatePixmap(display, wnd, width, height, depth);  
   
330          XStoreName(display, wnd, title);          XStoreName(display, wnd, title);
331    
332          classhints = XAllocClassHint();          classhints = XAllocClassHint();
# Line 392  ui_create_window() Line 348  ui_create_window()
348          }          }
349    
350          input_mask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |          input_mask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
351                  VisibilityChangeMask | FocusChangeMask;                  StructureNotifyMask | FocusChangeMask;
352    
353          if (grab_keyboard)          if (grab_keyboard)
354                  input_mask |= EnterWindowMask | LeaveWindowMask;                  input_mask |= EnterWindowMask | LeaveWindowMask;
# Line 400  ui_create_window() Line 356  ui_create_window()
356                  input_mask |= PointerMotionMask;                  input_mask |= PointerMotionMask;
357          if (ownbackstore)          if (ownbackstore)
358                  input_mask |= ExposureMask;                  input_mask |= ExposureMask;
359          if (enable_compose)  
360                  input_mask |= init_inputmethod();          if (IM != NULL)
361            {
362                    IC = XCreateIC(IM, XNInputStyle, (XIMPreeditNothing | XIMStatusNothing),
363                                   XNClientWindow, wnd, XNFocusWindow, wnd, NULL);
364    
365                    if ((IC != NULL) && (XGetICValues(IC, XNFilterEvents, &ic_input_mask, NULL) == NULL))
366                            input_mask |= ic_input_mask;
367            }
368    
369          XSelectInput(display, wnd, input_mask);          XSelectInput(display, wnd, input_mask);
370            XMapWindow(display, wnd);
371    
372          xwin_map_window();          /* wait for MapNotify */
373            do {
374                    XMaskEvent(display, StructureNotifyMask, &xevent);
375            } while (xevent.type != MapNotify);
376    
377          /* clear the window so that cached data is not seen */          if (fullscreen)
378          gc = XCreateGC(display, wnd, 0, NULL);                  XSetInputFocus(display, wnd, RevertToPointerRoot, CurrentTime);
         XSetForeground(display, gc, 0);  
         FILL_RECTANGLE(0, 0, width, height);  
379    
380          return True;          return True;
381  }  }
382    
383  void  void
384  ui_destroy_window()  ui_destroy_window(void)
385  {  {
386          if (ownbackstore)          if (IC != NULL)
387                  XFreePixmap(display, backstore);                  XDestroyIC(IC);
   
         XFreeGC(display, gc);  
   
         close_inputmethod();  
388    
389          XDestroyWindow(display, wnd);          XDestroyWindow(display, wnd);
         XCloseDisplay(display);  
         display = NULL;  
390  }  }
391    
   
392  void  void
393  xwin_toggle_fullscreen()  xwin_toggle_fullscreen(void)
394  {  {
395          XEvent xevent;          Pixmap contents = 0;
396          XSetWindowAttributes attribs;  
397          int newwidth, newheight;          if (!ownbackstore)
398            {
399                    /* need to save contents of window */
400                    contents = XCreatePixmap(display, wnd, width, height, depth);
401                    XCopyArea(display, wnd, contents, gc, 0, 0, width, height, 0, 0);
402            }
403    
404            ui_destroy_window();
405          fullscreen = !fullscreen;          fullscreen = !fullscreen;
406          newwidth = fullscreen ? WidthOfScreen(screen) : width;          ui_create_window();
         newheight = fullscreen ? HeightOfScreen(screen) : height;  
407    
408          XUnmapWindow(display, wnd);          XDefineCursor(display, wnd, current_cursor);
409          attribs.override_redirect = fullscreen;  
410          XMoveResizeWindow(display, wnd, 0, 0, newwidth, newheight);          if (!ownbackstore)
411          XChangeWindowAttributes(display, wnd, CWOverrideRedirect, &attribs);          {
412          xwin_map_window();                  XCopyArea(display, contents, wnd, gc, 0, 0, width, height, 0, 0);
413                    XFreePixmap(display, contents);
414            }
415  }  }
416    
417  /* Process all events in Xlib queue */  /* Process all events in Xlib queue */
418  static void  static void
419  xwin_process_events()  xwin_process_events(void)
420  {  {
421          XEvent xevent;          XEvent xevent;
422          KeySym keysym;          KeySym keysym;
# Line 466  xwin_process_events() Line 431  xwin_process_events()
431          {          {
432                  XNextEvent(display, &xevent);                  XNextEvent(display, &xevent);
433    
434                  if (enable_compose && (XFilterEvent(&xevent, None) == True))                  if ((IC != NULL) && (XFilterEvent(&xevent, None) == True))
435                  {                  {
436                          DEBUG_KBD(("Filtering event\n"));                          DEBUG_KBD(("Filtering event\n"));
437                          continue;                          continue;
# Line 780  ui_create_cursor(unsigned int x, unsigne Line 745  ui_create_cursor(unsigned int x, unsigne
745  void  void
746  ui_set_cursor(HCURSOR cursor)  ui_set_cursor(HCURSOR cursor)
747  {  {
748          XDefineCursor(display, wnd, (Cursor) cursor);          current_cursor = (Cursor) cursor;
749            XDefineCursor(display, wnd, current_cursor);
750  }  }
751    
752  void  void
# Line 886  ui_set_clip(int x, int y, int cx, int cy Line 852  ui_set_clip(int x, int y, int cx, int cy
852  }  }
853    
854  void  void
855  ui_reset_clip()  ui_reset_clip(void)
856  {  {
857          XRectangle rect;          XRectangle rect;
858    
# Line 898  ui_reset_clip() Line 864  ui_reset_clip()
864  }  }
865    
866  void  void
867  ui_bell()  ui_bell(void)
868  {  {
869          XBell(display, 0);          XBell(display, 0);
870  }  }
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