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