src/x11/nanox.c

   1 /*
   2  * nanox.c
   3  *
   4  * Replacements for some comomon Xlib functions
   5  * Licence: The wxWidgets licence
   6  */
   7
   8 #include "wx/setup.h"
   9
  10 #if wxUSE_NANOX
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "Xlib.h"
  14 #endif
  15
  16 #include <ctype.h>
  17 #include <malloc.h>
  18 #include <string.h>
  19 #include <stdio.h>
  20 #include "wx/defs.h"
  21 #include "wx/x11/nanox/X11/Xlib.h"
  22
  23 /* Expands to some compatibility functions (see XtoNX.h) */
  24
  25 STATIC_FUNCTIONS
  26
  27 static GR_PALETTE* s_globalColormap = 0;
  28
  29 Colormap DefaultColormapOfScreen(Screen* screen)
  30 {
  31     if (!s_globalColormap)
  32     {
  33         s_globalColormap = (GR_PALETTE*) malloc(sizeof(GR_PALETTE));
  34
  35         GrGetSystemPalette(s_globalColormap);
  36     }
  37
  38     return s_globalColormap;
  39 }
  40
  41 int XSetGraphicsExposures( Display* display, GC gc, Bool graphics_exposures)
  42 {
  43     return Success ;
  44 }
  45
  46 int XWarpPointer( Display* display, Window srcW, Window destW,
  47                  int srcX, int srcY,
  48                  unsigned int srcWidth,
  49                  unsigned int srcHeight,
  50                  int destX, int destY)
  51 {
  52     GrMoveCursor(destX, destY);
  53     return Success;
  54 }
  55
  56 int XSetInputFocus(Display* display, Window focus, int revert_to, Time time)
  57 {
  58     GrSetFocus(focus);
  59     return Success;
  60 }
  61
  62 int XGetInputFocus(Display* display, Window* focus_return, int* revert_to_return)
  63 {
  64     * focus_return = GrGetFocus();
  65     * revert_to_return = 0;
  66     return Success;
  67 }
  68
  69 int XGrabPointer(Display* display, Window grab_window,
  70                  Bool owner_events, unsigned int event_mask,
  71                  int pointer_mode, int keyboard_mode,
  72                  Window confine_to, Cursor cursor, Time time)
  73 {
  74     /* According to comments in srvevent.c in Nano-X, the pointer
  75      * is implicitly grabbed when a mouse button is down.
  76      * We may be able to simulate this further in the event loop.
  77      */
  78     return Success;
  79 }
  80
  81 int XUngrabPointer(Display* display, Time time)
  82 {
  83     return Success;
  84 }
  85
  86 int XCopyArea(Display* display, Drawable src, Drawable dest, GC gc,
  87               int src_x, int src_y, unsigned int width, unsigned int height,
  88               int dest_x, int dest_y)
  89 {
  90     GrCopyArea(dest, gc, dest_x, dest_y,
  91                         width, height, src,
  92                         src_x, src_y, 0);
  93     return Success;
  94 }
  95
  96 int XCopyPlane(Display* display, Drawable src, Drawable dest, GC gc,
  97               int src_x, int src_y, unsigned int width, unsigned int height,
  98               int dest_x, int dest_y, unsigned long plane)
  99 {
 100     GrCopyArea(dest, gc, dest_x, dest_y,
 101                         width, height, src,
 102                         src_x, src_y, 0);
 103     return Success;
 104 }
 105
 106 #if 0
 107 typedef struct {
 108   GR_WINDOW_ID wid;             /* window id (or 0 if no such window) */
 109   GR_WINDOW_ID parent;          /* parent window id */
 110   GR_WINDOW_ID child;           /* first child window id (or 0) */
 111   GR_WINDOW_ID sibling;         /* next sibling window id (or 0) */
 112   GR_BOOL inputonly;            /* TRUE if window is input only */
 113   GR_BOOL mapped;               /* TRUE if window is mapped */
 114   GR_COUNT unmapcount;          /* reasons why window is unmapped */
 115   GR_COORD x;                   /* absolute x position of window */
 116   GR_COORD y;                   /* absolute y position of window */
 117   GR_SIZE width;                /* width of window */
 118   GR_SIZE height;               /* height of window */
 119   GR_SIZE bordersize;           /* size of border */
 120   GR_COLOR bordercolor;         /* color of border */
 121   GR_COLOR background;          /* background color */
 122   GR_EVENT_MASK eventmask;      /* current event mask for this client */
 123   GR_WM_PROPS props;            /* window properties */
 124   GR_CURSOR_ID cursor;          /* cursor id*/
 125   unsigned long processid;      /* process id of owner*/
 126 } GR_WINDOW_INFO;
 127
 128 typedef struct {
 129      int x, y;                /* location of window */
 130      int width, height;       /* width and height of window */
 131      int border_width;        /* border width of window */
 132      int depth;               /* depth of window */
 133      Visual *visual;          /* the associated visual structure */
 134      Window root;             /* root of screen containing window */
 135      int class;               /* InputOutput, InputOnly*/
 136      int bit_gravity;         /* one of the bit gravity values */
 137      int win_gravity;         /* one of the window gravity values */
 138      int backing_store;       /* NotUseful, WhenMapped, Always */
 139      unsigned long backing_planes;/* planes to be preserved if possible */
 140      unsigned long backing_pixel;/* value to be used when restoring planes */
 141      Bool save_under;         /* boolean, should bits under be saved? */
 142      Colormap colormap;       /* color map to be associated with window */
 143      Bool map_installed;      /* boolean, is color map currently installed*/
 144      int map_state;           /* IsUnmapped, IsUnviewable, IsViewable */
 145      long all_event_masks;    /* set of events all people have interest in*/
 146      long your_event_mask;    /* my event mask */
 147      long do_not_propagate_mask;/* set of events that should not propagate */
 148      Bool override_redirect;  /* boolean value for override-redirect */
 149      Screen *screen;          /* back pointer to correct screen */
 150 } XWindowAttributes;
 151
 152 #endif
 153
 154
 155 Status XGetWindowAttributes(Display* display, Window w,
 156                             XWindowAttributes* window_attributes)
 157 {
 158     GR_WINDOW_INFO info;
 159     Window parent = 0;
 160     GrFlush();
 161     GrGetWindowInfo(w, & info);
 162
 163     window_attributes->x = info.x;
 164     window_attributes->y = info.y;
 165     window_attributes->width = info.width;
 166     window_attributes->height = info.height;
 167     window_attributes->border_width = info.bordersize;
 168     window_attributes->depth = 0;
 169     window_attributes->visual = NULL;
 170     window_attributes->root = 0;
 171     window_attributes->_class = info.inputonly ? InputOnly : InputOutput ;
 172     window_attributes->bit_gravity = 0;
 173     window_attributes->win_gravity = 0;
 174     window_attributes->backing_store = 0;
 175     window_attributes->backing_planes = 0;
 176     window_attributes->backing_pixel = 0;
 177     window_attributes->save_under = FALSE;
 178     window_attributes->colormap = DefaultColormapOfScreen(0);
 179     window_attributes->map_installed = FALSE;
 180     window_attributes->map_state = info.mapped ? IsViewable : IsUnmapped ;
 181     window_attributes->all_event_masks = 0;
 182     window_attributes->do_not_propagate_mask = 0;
 183     window_attributes->override_redirect = FALSE;
 184     window_attributes->screen = NULL;
 185
 186     /* We need to check if any parents are unmapped,
 187      * or we will report a window as mapped when it is not.
 188      */
 189     parent = info.parent;
 190     while (parent)
 191     {
 192         GrGetWindowInfo(parent, & info);
 193         if (info.mapped == 0)
 194             window_attributes->map_state = IsUnmapped;
 195
 196         parent = info.parent;
 197     }
 198
 199     return 1;
 200 }
 201
 202 static XErrorHandler* g_ErrorHandler = NULL;
 203
 204 void DefaultNanoXErrorHandler(GR_EVENT_ERROR* ep)
 205 {
 206     if (g_ErrorHandler)
 207     {
 208         XErrorEvent errEvent;
 209         errEvent.type = ep->type;
 210         errEvent.display = NULL;
 211         errEvent.resourceid = ep->id;
 212         errEvent.serial = 0;
 213         errEvent.error_code = ep->code;
 214         errEvent.request_code = 0;
 215         errEvent.minor_code = 0;
 216         (*g_ErrorHandler)(NULL, & errEvent);
 217     }
 218 }
 219
 220 XErrorHandler XSetErrorHandler (XErrorHandler handler)
 221 {
 222     XErrorHandler oldHandler = g_ErrorHandler;
 223     g_ErrorHandler = handler;
 224     GrSetErrorHandler(DefaultNanoXErrorHandler);
 225     return oldHandler;
 226 }
 227
 228 static Screen s_screen;
 229 Screen *XScreenOfDisplay(Display*               display,
 230                          int screen_number)
 231 {
 232     /* TODO: fill in the members. See Xlib.h */
 233     return & s_screen;
 234 }
 235
 236 int DisplayWidth(Display* display, int screen)
 237 {
 238     return _display.display_width;
 239 }
 240
 241 int DisplayHeight(Display* display, int screen)
 242 {
 243     return _display.display_height;
 244 }
 245
 246 int DefaultDepth(Display* display, int screen)
 247 {
 248     return _display.display_bpp;
 249 }
 250
 251 int XAllocColor(Display* display, Colormap cmap,
 252                 XColor* color)
 253 {
 254     GR_PIXELVAL pixel;
 255     GrFindColor(GR_RGB(color->red, color->green, color->blue), & pixel);
 256     color->pixel = pixel;
 257     return 1;
 258 }
 259
 260 typedef struct {
 261     const char* name;
 262     unsigned int red;
 263     unsigned int green;
 264     unsigned int blue;
 265 } _wxColourEntry;
 266
 267 static _wxColourEntry _wxColourDatabase[] =
 268 {
 269     { "WHITE", 255, 255, 255 },
 270     { "BLACK", 0, 0, 0 },
 271     { "RED", 255, 0, 0 },
 272     { "GREEN", 0, 255, 0 },
 273     { "BLUE", 0, 255, 255 },
 274     { "GREY", 128, 128, 128 },
 275     { "GRAY", 128, 128, 128 },
 276     { "LIGHT GREY", 192, 192, 192 },
 277     { "LIGHT GRAY", 192, 192, 192 },
 278     { "DARK GREY", 32, 32, 32 },
 279     { "DARK GRAY", 32, 32, 32 },
 280     { "CYAN", 0, 255, 255 },
 281     { "MAGENTA", 255, 255, 0 },
 282
 283     /* TODO: the rest */
 284     { NULL, 0, 0, 0 }
 285 };
 286
 287 int XParseColor(Display* display, Colormap cmap,
 288                 const char* cname, XColor* color)
 289 {
 290     int i = 0;
 291     for (;;)
 292     {
 293         if (!_wxColourDatabase[i].name)
 294             break;
 295         else
 296         {
 297             if (strcmp(cname, _wxColourDatabase[i].name) == 0)
 298             {
 299                 color->red = _wxColourDatabase[i].red;
 300                 color->green = _wxColourDatabase[i].green;
 301                 color->blue = _wxColourDatabase[i].blue;
 302
 303                 return 1;
 304             }
 305             i ++;
 306         }
 307     }
 308
 309     /* Not found: use black */
 310     color->red = 0;
 311     color->green = 0;
 312     color->blue = 0;
 313
 314     return 0;
 315 }
 316
 317 int XDrawLine(Display* display, Window win, GC gc,
 318               int x1, int y1, int x2, int y2)
 319 {
 320     GR_POINT points[2];
 321     points[0].x = x1;
 322     points[0].y = y1;
 323     points[1].x = x2;
 324     points[1].y = y2;
 325
 326     GrDrawLines(win, gc, points, 2);
 327     return 1;
 328 }
 329
 330 int XTextExtents( XFontStruct* font, char* s, int len, int* direction,
 331                   int* ascent, int* descent2, XCharStruct* overall)
 332 {
 333     GR_SIZE retwidth, retheight, retbase;
 334     GR_GC_ID gc = GrNewGC();
 335
 336     *ascent = font->info.baseline;
 337     *direction = 1; /* ? */
 338     *descent2 = 0; /* ? */
 339
 340     GrSetGCFont(gc, font->fid);
 341
 342     /* TODO need to set the relevant flags for the character set.
 343      * A good trick might be to pass a wxString instead of char*
 344      * to this function.
 345      */
 346
 347     GrGetGCTextSize(gc, s, len, GR_TFASCII, & retwidth,
 348                     & retheight, & retbase);
 349     if (overall)
 350     {
 351         overall->width = retwidth;
 352         overall->lbearing = 0;
 353         overall->rbearing = 0;
 354         overall->ascent = *ascent;
 355         overall->descent = 0;
 356         overall->attributes = 0;
 357     }
 358
 359     GrDestroyGC(gc);
 360
 361     return 1;
 362 }
 363
 364 XFontStruct* XLoadQueryFont(Display* display, const char* fontSpec)
 365 {
 366     /* TODO: map fontSpec to something sensible for Nano-X */
 367     char *fontName = NULL;
 368     XFontStruct* fontInfo = malloc(sizeof(XFontStruct));
 369     fontInfo->fid = GrCreateFont(fontName, 0, 0);
 370     GrGetFontInfo(fontInfo->fid, & fontInfo->info);
 371     printf("Warning: should not call XLoadQueryFont since font spec is not used in Nano-X.\n");
 372     return fontInfo;
 373 }
 374
 375 int XFreeFont(Display* display, XFontStruct* fontStruct)
 376 {
 377     GrDestroyFont(fontStruct->fid);
 378     free(fontStruct);
 379     return 1;
 380 }
 381
 382 int XQueryColor(Display* display, Colormap cmap, XColor* color)
 383 {
 384     /* cmap is a GR_PALETTE */
 385     if (color->pixel < cmap->count)
 386     {
 387         color->red = cmap->palette[color->pixel].r;
 388         color->green = cmap->palette[color->pixel].g;
 389         color->blue = cmap->palette[color->pixel].b;
 390         return 1;
 391     }
 392     else
 393         return 0;
 394 }
 395
 396 int XConfigureWindow(Display* display, Window w, int mask, XWindowChanges* changes)
 397 {
 398     if ((mask & CWX) && (mask & CWY))
 399         GrMoveWindow(w, changes->x, changes->y);
 400     if ((mask & CWWidth) && (mask & CWHeight))
 401         GrResizeWindow(w, changes->width, changes->height);
 402     if (mask & CWBorderWidth)
 403     {
 404         /* TODO */
 405     }
 406     if (mask & CWSibling)
 407     {
 408         /* TODO */
 409     }
 410     if (mask & CWStackMode)
 411     {
 412         /* TODO */
 413     }
 414     return 1;
 415 }
 416
 417 int XTranslateCoordinates(Display* display, Window srcWindow, Window destWindow, int srcX, int srcY, int* destX, int* destY, Window* childReturn)
 418 {
 419     int offx = 0;
 420     int offy = 0;
 421
 422     Window w = srcWindow;
 423     while (w != GR_ROOT_WINDOW_ID)
 424     {
 425         GR_WINDOW_INFO info;
 426         GrGetWindowInfo(w, & info);
 427         w = info.parent;
 428
 429         offx += info.x ;
 430         offy += info.y ;
 431     }
 432
 433     w = destWindow;
 434
 435     while (w != GR_ROOT_WINDOW_ID)
 436     {
 437         GR_WINDOW_INFO info;
 438         GrGetWindowInfo(w, & info);
 439         w = info.parent;
 440
 441         offx -= info.x ;
 442         offy -= info.y ;
 443     }
 444
 445     *destX = srcX + offx;
 446     *destY = srcY + offy;
 447
 448     if (childReturn)
 449         *childReturn = 0;
 450
 451     return 1;
 452 }
 453
 454 /* Should not really be necessary but in no-optimize mode
 455  * gcc complains that wxNoop is not found if wxNoop is inline.
 456  */
 457
 458 void wxNoop()
 459 {
 460 }
 461
 462 #endif
 463   /* wxUSE_NANOX */