| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: bitmap.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | #ifdef __GNUG__ |
| 11 | #pragma implementation "bitmap.h" |
| 12 | #endif |
| 13 | |
| 14 | #include "wx/defs.h" |
| 15 | |
| 16 | #include "wx/palette.h" |
| 17 | #include "wx/bitmap.h" |
| 18 | #include "wx/icon.h" |
| 19 | #include "wx/filefn.h" |
| 20 | #include "wx/image.h" |
| 21 | #include "wx/dcmemory.h" |
| 22 | #include "wx/app.h" |
| 23 | |
| 24 | #ifdef __WXGTK20__ |
| 25 | // need this to get gdk_image_new_bitmap() |
| 26 | #define GDK_ENABLE_BROKEN |
| 27 | #endif |
| 28 | |
| 29 | #include <gdk/gdk.h> |
| 30 | #include <gtk/gtk.h> |
| 31 | #include <gdk/gdkx.h> |
| 32 | |
| 33 | #ifdef __WXGTK20__ |
| 34 | #include <gdk/gdkimage.h> |
| 35 | #else // GTK+ 1.2 |
| 36 | #include <gdk/gdkrgb.h> |
| 37 | #endif // GTK+ 2.0/1.2 |
| 38 | |
| 39 | extern void gdk_wx_draw_bitmap (GdkDrawable *drawable, |
| 40 | GdkGC *gc, |
| 41 | GdkDrawable *src, |
| 42 | gint xsrc, |
| 43 | gint ysrc, |
| 44 | gint xdest, |
| 45 | gint ydest, |
| 46 | gint width, |
| 47 | gint height); |
| 48 | |
| 49 | //----------------------------------------------------------------------------- |
| 50 | // data |
| 51 | //----------------------------------------------------------------------------- |
| 52 | |
| 53 | extern GtkWidget *wxGetRootWindow(); |
| 54 | |
| 55 | //----------------------------------------------------------------------------- |
| 56 | // wxMask |
| 57 | //----------------------------------------------------------------------------- |
| 58 | |
| 59 | IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject) |
| 60 | |
| 61 | wxMask::wxMask() |
| 62 | { |
| 63 | m_bitmap = (GdkBitmap *) NULL; |
| 64 | } |
| 65 | |
| 66 | wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour ) |
| 67 | { |
| 68 | m_bitmap = (GdkBitmap *) NULL; |
| 69 | Create( bitmap, colour ); |
| 70 | } |
| 71 | |
| 72 | wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex ) |
| 73 | { |
| 74 | m_bitmap = (GdkBitmap *) NULL; |
| 75 | Create( bitmap, paletteIndex ); |
| 76 | } |
| 77 | |
| 78 | wxMask::wxMask( const wxBitmap& bitmap ) |
| 79 | { |
| 80 | m_bitmap = (GdkBitmap *) NULL; |
| 81 | Create( bitmap ); |
| 82 | } |
| 83 | |
| 84 | wxMask::~wxMask() |
| 85 | { |
| 86 | if (m_bitmap) |
| 87 | gdk_bitmap_unref( m_bitmap ); |
| 88 | } |
| 89 | |
| 90 | bool wxMask::Create( const wxBitmap& bitmap, |
| 91 | const wxColour& colour ) |
| 92 | { |
| 93 | if (m_bitmap) |
| 94 | { |
| 95 | gdk_bitmap_unref( m_bitmap ); |
| 96 | m_bitmap = (GdkBitmap*) NULL; |
| 97 | } |
| 98 | |
| 99 | wxImage image = bitmap.ConvertToImage(); |
| 100 | if (!image.Ok()) return FALSE; |
| 101 | |
| 102 | m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, image.GetWidth(), image.GetHeight(), 1 ); |
| 103 | GdkGC *gc = gdk_gc_new( m_bitmap ); |
| 104 | |
| 105 | GdkColor color; |
| 106 | color.red = 65000; |
| 107 | color.green = 65000; |
| 108 | color.blue = 65000; |
| 109 | color.pixel = 1; |
| 110 | gdk_gc_set_foreground( gc, &color ); |
| 111 | gdk_gc_set_fill( gc, GDK_SOLID ); |
| 112 | gdk_draw_rectangle( m_bitmap, gc, TRUE, 0, 0, image.GetWidth(), image.GetHeight() ); |
| 113 | |
| 114 | unsigned char *data = image.GetData(); |
| 115 | int index = 0; |
| 116 | |
| 117 | unsigned char red = colour.Red(); |
| 118 | unsigned char green = colour.Green(); |
| 119 | unsigned char blue = colour.Blue(); |
| 120 | |
| 121 | GdkVisual *visual = wxTheApp->GetGdkVisual(); |
| 122 | |
| 123 | int bpp = visual->depth; |
| 124 | if ((bpp == 16) && (visual->red_mask != 0xf800)) |
| 125 | bpp = 15; |
| 126 | if (bpp == 15) |
| 127 | { |
| 128 | red = red & 0xf8; |
| 129 | green = green & 0xf8; |
| 130 | blue = blue & 0xf8; |
| 131 | } |
| 132 | else if (bpp == 16) |
| 133 | { |
| 134 | red = red & 0xf8; |
| 135 | green = green & 0xfc; |
| 136 | blue = blue & 0xf8; |
| 137 | } |
| 138 | else if (bpp == 12) |
| 139 | { |
| 140 | red = red & 0xf0; |
| 141 | green = green & 0xf0; |
| 142 | blue = blue & 0xf0; |
| 143 | } |
| 144 | |
| 145 | color.red = 0; |
| 146 | color.green = 0; |
| 147 | color.blue = 0; |
| 148 | color.pixel = 0; |
| 149 | gdk_gc_set_foreground( gc, &color ); |
| 150 | |
| 151 | for (int j = 0; j < image.GetHeight(); j++) |
| 152 | { |
| 153 | int start_x = -1; |
| 154 | int i; |
| 155 | for (i = 0; i < image.GetWidth(); i++) |
| 156 | { |
| 157 | if ((data[index] == red) && |
| 158 | (data[index+1] == green) && |
| 159 | (data[index+2] == blue)) |
| 160 | { |
| 161 | if (start_x == -1) |
| 162 | start_x = i; |
| 163 | } |
| 164 | else |
| 165 | { |
| 166 | if (start_x != -1) |
| 167 | { |
| 168 | gdk_draw_line( m_bitmap, gc, start_x, j, i-1, j ); |
| 169 | start_x = -1; |
| 170 | } |
| 171 | } |
| 172 | index += 3; |
| 173 | } |
| 174 | if (start_x != -1) |
| 175 | gdk_draw_line( m_bitmap, gc, start_x, j, i, j ); |
| 176 | } |
| 177 | |
| 178 | gdk_gc_unref( gc ); |
| 179 | |
| 180 | return TRUE; |
| 181 | } |
| 182 | |
| 183 | bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex ) |
| 184 | { |
| 185 | unsigned char r,g,b; |
| 186 | wxPalette *pal = bitmap.GetPalette(); |
| 187 | |
| 188 | wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") ); |
| 189 | |
| 190 | pal->GetRGB(paletteIndex, &r, &g, &b); |
| 191 | |
| 192 | return Create(bitmap, wxColour(r, g, b)); |
| 193 | } |
| 194 | |
| 195 | bool wxMask::Create( const wxBitmap& bitmap ) |
| 196 | { |
| 197 | if (m_bitmap) |
| 198 | { |
| 199 | gdk_bitmap_unref( m_bitmap ); |
| 200 | m_bitmap = (GdkBitmap*) NULL; |
| 201 | } |
| 202 | |
| 203 | if (!bitmap.Ok()) return FALSE; |
| 204 | |
| 205 | wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") ); |
| 206 | |
| 207 | m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bitmap.GetWidth(), bitmap.GetHeight(), 1 ); |
| 208 | |
| 209 | if (!m_bitmap) return FALSE; |
| 210 | |
| 211 | GdkGC *gc = gdk_gc_new( m_bitmap ); |
| 212 | |
| 213 | gdk_wx_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() ); |
| 214 | |
| 215 | gdk_gc_unref( gc ); |
| 216 | |
| 217 | return TRUE; |
| 218 | } |
| 219 | |
| 220 | GdkBitmap *wxMask::GetBitmap() const |
| 221 | { |
| 222 | return m_bitmap; |
| 223 | } |
| 224 | |
| 225 | //----------------------------------------------------------------------------- |
| 226 | // wxBitmap |
| 227 | //----------------------------------------------------------------------------- |
| 228 | |
| 229 | class wxBitmapRefData: public wxObjectRefData |
| 230 | { |
| 231 | public: |
| 232 | wxBitmapRefData(); |
| 233 | ~wxBitmapRefData(); |
| 234 | |
| 235 | GdkPixmap *m_pixmap; |
| 236 | GdkBitmap *m_bitmap; |
| 237 | wxMask *m_mask; |
| 238 | int m_width; |
| 239 | int m_height; |
| 240 | int m_bpp; |
| 241 | wxPalette *m_palette; |
| 242 | }; |
| 243 | |
| 244 | wxBitmapRefData::wxBitmapRefData() |
| 245 | { |
| 246 | m_pixmap = (GdkPixmap *) NULL; |
| 247 | m_bitmap = (GdkBitmap *) NULL; |
| 248 | m_mask = (wxMask *) NULL; |
| 249 | m_width = 0; |
| 250 | m_height = 0; |
| 251 | m_bpp = 0; |
| 252 | m_palette = (wxPalette *) NULL; |
| 253 | } |
| 254 | |
| 255 | wxBitmapRefData::~wxBitmapRefData() |
| 256 | { |
| 257 | if (m_pixmap) gdk_pixmap_unref( m_pixmap ); |
| 258 | if (m_bitmap) gdk_bitmap_unref( m_bitmap ); |
| 259 | if (m_mask) delete m_mask; |
| 260 | if (m_palette) delete m_palette; |
| 261 | } |
| 262 | |
| 263 | //----------------------------------------------------------------------------- |
| 264 | |
| 265 | #define M_BMPDATA ((wxBitmapRefData *)m_refData) |
| 266 | |
| 267 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject) |
| 268 | |
| 269 | wxBitmap::wxBitmap() |
| 270 | { |
| 271 | } |
| 272 | |
| 273 | wxBitmap::wxBitmap( int width, int height, int depth ) |
| 274 | { |
| 275 | Create( width, height, depth ); |
| 276 | } |
| 277 | |
| 278 | bool wxBitmap::Create( int width, int height, int depth ) |
| 279 | { |
| 280 | UnRef(); |
| 281 | |
| 282 | wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") ) |
| 283 | |
| 284 | GdkVisual *visual = wxTheApp->GetGdkVisual(); |
| 285 | |
| 286 | if (depth == -1) depth = visual->depth; |
| 287 | |
| 288 | wxCHECK_MSG( (depth == visual->depth) || |
| 289 | (depth == 1), FALSE, wxT("invalid bitmap depth") ) |
| 290 | |
| 291 | m_refData = new wxBitmapRefData(); |
| 292 | M_BMPDATA->m_mask = (wxMask *) NULL; |
| 293 | M_BMPDATA->m_width = width; |
| 294 | M_BMPDATA->m_height = height; |
| 295 | if (depth == 1) |
| 296 | { |
| 297 | M_BMPDATA->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ); |
| 298 | M_BMPDATA->m_bpp = 1; |
| 299 | } |
| 300 | else |
| 301 | { |
| 302 | M_BMPDATA->m_pixmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, depth ); |
| 303 | M_BMPDATA->m_bpp = visual->depth; |
| 304 | } |
| 305 | |
| 306 | return Ok(); |
| 307 | } |
| 308 | |
| 309 | bool wxBitmap::CreateFromXpm( const char **bits ) |
| 310 | { |
| 311 | UnRef(); |
| 312 | |
| 313 | wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") ) |
| 314 | |
| 315 | GdkVisual *visual = wxTheApp->GetGdkVisual(); |
| 316 | |
| 317 | m_refData = new wxBitmapRefData(); |
| 318 | |
| 319 | GdkBitmap *mask = (GdkBitmap*) NULL; |
| 320 | |
| 321 | M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxGetRootWindow()->window, &mask, NULL, (gchar **) bits ); |
| 322 | |
| 323 | wxCHECK_MSG( M_BMPDATA->m_pixmap, FALSE, wxT("couldn't create pixmap") ); |
| 324 | |
| 325 | if (mask) |
| 326 | { |
| 327 | M_BMPDATA->m_mask = new wxMask(); |
| 328 | M_BMPDATA->m_mask->m_bitmap = mask; |
| 329 | } |
| 330 | |
| 331 | gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); |
| 332 | |
| 333 | M_BMPDATA->m_bpp = visual->depth; // Can we get a different depth from create_from_xpm_d() ? |
| 334 | |
| 335 | return TRUE; |
| 336 | } |
| 337 | |
| 338 | bool wxBitmap::CreateFromImage( const wxImage& image, int depth ) |
| 339 | { |
| 340 | UnRef(); |
| 341 | |
| 342 | wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") ) |
| 343 | wxCHECK_MSG( depth == -1 || depth == 1, FALSE, wxT("invalid bitmap depth") ) |
| 344 | |
| 345 | m_refData = new wxBitmapRefData(); |
| 346 | |
| 347 | // ------ |
| 348 | // conversion to mono bitmap: |
| 349 | // ------ |
| 350 | if (depth == 1) |
| 351 | { |
| 352 | int width = image.GetWidth(); |
| 353 | int height = image.GetHeight(); |
| 354 | |
| 355 | SetHeight( height ); |
| 356 | SetWidth( width ); |
| 357 | |
| 358 | SetBitmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) ); |
| 359 | |
| 360 | SetDepth( 1 ); |
| 361 | |
| 362 | GdkVisual *visual = wxTheApp->GetGdkVisual(); |
| 363 | |
| 364 | // Create picture image |
| 365 | |
| 366 | unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); |
| 367 | |
| 368 | GdkImage *data_image = |
| 369 | gdk_image_new_bitmap( visual, data_data, width, height ); |
| 370 | |
| 371 | // Create mask image |
| 372 | |
| 373 | GdkImage *mask_image = (GdkImage*) NULL; |
| 374 | |
| 375 | if (image.HasMask()) |
| 376 | { |
| 377 | unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); |
| 378 | |
| 379 | mask_image = gdk_image_new_bitmap( visual, mask_data, width, height ); |
| 380 | |
| 381 | wxMask *mask = new wxMask(); |
| 382 | mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ); |
| 383 | |
| 384 | SetMask( mask ); |
| 385 | } |
| 386 | |
| 387 | int r_mask = image.GetMaskRed(); |
| 388 | int g_mask = image.GetMaskGreen(); |
| 389 | int b_mask = image.GetMaskBlue(); |
| 390 | |
| 391 | unsigned char* data = image.GetData(); |
| 392 | |
| 393 | int index = 0; |
| 394 | for (int y = 0; y < height; y++) |
| 395 | { |
| 396 | for (int x = 0; x < width; x++) |
| 397 | { |
| 398 | int r = data[index]; |
| 399 | index++; |
| 400 | int g = data[index]; |
| 401 | index++; |
| 402 | int b = data[index]; |
| 403 | index++; |
| 404 | |
| 405 | if (image.HasMask()) |
| 406 | { |
| 407 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) |
| 408 | gdk_image_put_pixel( mask_image, x, y, 1 ); |
| 409 | else |
| 410 | gdk_image_put_pixel( mask_image, x, y, 0 ); |
| 411 | } |
| 412 | |
| 413 | if ((r == 255) && (b == 255) && (g == 255)) |
| 414 | gdk_image_put_pixel( data_image, x, y, 1 ); |
| 415 | else |
| 416 | gdk_image_put_pixel( data_image, x, y, 0 ); |
| 417 | |
| 418 | } // for |
| 419 | } // for |
| 420 | |
| 421 | // Blit picture |
| 422 | |
| 423 | GdkGC *data_gc = gdk_gc_new( GetBitmap() ); |
| 424 | |
| 425 | gdk_draw_image( GetBitmap(), data_gc, data_image, 0, 0, 0, 0, width, height ); |
| 426 | |
| 427 | gdk_image_destroy( data_image ); |
| 428 | gdk_gc_unref( data_gc ); |
| 429 | |
| 430 | // Blit mask |
| 431 | |
| 432 | if (image.HasMask()) |
| 433 | { |
| 434 | GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() ); |
| 435 | |
| 436 | gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); |
| 437 | |
| 438 | gdk_image_destroy( mask_image ); |
| 439 | gdk_gc_unref( mask_gc ); |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | // ------ |
| 444 | // conversion to colour bitmap: |
| 445 | // ------ |
| 446 | else |
| 447 | { |
| 448 | int width = image.GetWidth(); |
| 449 | int height = image.GetHeight(); |
| 450 | |
| 451 | SetHeight( height ); |
| 452 | SetWidth( width ); |
| 453 | |
| 454 | SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) ); |
| 455 | |
| 456 | GdkVisual *visual = wxTheApp->GetGdkVisual(); |
| 457 | |
| 458 | int bpp = visual->depth; |
| 459 | |
| 460 | SetDepth( bpp ); |
| 461 | |
| 462 | if ((bpp == 16) && (visual->red_mask != 0xf800)) |
| 463 | bpp = 15; |
| 464 | else if (bpp < 8) |
| 465 | bpp = 8; |
| 466 | |
| 467 | // We handle 8-bit bitmaps ourselves using the colour cube, 12-bit |
| 468 | // visuals are not supported by GDK so we do these ourselves, too. |
| 469 | // 15-bit and 16-bit should actually work and 24-bit certainly does. |
| 470 | #ifdef __sgi |
| 471 | if (!image.HasMask() && (bpp > 16)) |
| 472 | #else |
| 473 | if (!image.HasMask() && (bpp > 12)) |
| 474 | #endif |
| 475 | { |
| 476 | static bool s_hasInitialized = FALSE; |
| 477 | |
| 478 | if (!s_hasInitialized) |
| 479 | { |
| 480 | gdk_rgb_init(); |
| 481 | s_hasInitialized = TRUE; |
| 482 | } |
| 483 | |
| 484 | GdkGC *gc = gdk_gc_new( GetPixmap() ); |
| 485 | |
| 486 | gdk_draw_rgb_image( GetPixmap(), |
| 487 | gc, |
| 488 | 0, 0, |
| 489 | width, height, |
| 490 | GDK_RGB_DITHER_NONE, |
| 491 | image.GetData(), |
| 492 | width*3 ); |
| 493 | |
| 494 | gdk_gc_unref( gc ); |
| 495 | return TRUE; |
| 496 | } |
| 497 | |
| 498 | // Create picture image |
| 499 | |
| 500 | GdkImage *data_image = |
| 501 | gdk_image_new( GDK_IMAGE_FASTEST, visual, width, height ); |
| 502 | |
| 503 | // Create mask image |
| 504 | |
| 505 | GdkImage *mask_image = (GdkImage*) NULL; |
| 506 | |
| 507 | if (image.HasMask()) |
| 508 | { |
| 509 | unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); |
| 510 | |
| 511 | mask_image = gdk_image_new_bitmap( visual, mask_data, width, height ); |
| 512 | |
| 513 | wxMask *mask = new wxMask(); |
| 514 | mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ); |
| 515 | |
| 516 | SetMask( mask ); |
| 517 | } |
| 518 | |
| 519 | // Render |
| 520 | |
| 521 | enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR }; |
| 522 | byte_order b_o = RGB; |
| 523 | |
| 524 | if (bpp > 8) |
| 525 | { |
| 526 | if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB; |
| 527 | else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RBG; |
| 528 | else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG; |
| 529 | else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR; |
| 530 | else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB; |
| 531 | else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR; |
| 532 | } |
| 533 | |
| 534 | int r_mask = image.GetMaskRed(); |
| 535 | int g_mask = image.GetMaskGreen(); |
| 536 | int b_mask = image.GetMaskBlue(); |
| 537 | |
| 538 | unsigned char* data = image.GetData(); |
| 539 | |
| 540 | int index = 0; |
| 541 | for (int y = 0; y < height; y++) |
| 542 | { |
| 543 | for (int x = 0; x < width; x++) |
| 544 | { |
| 545 | int r = data[index]; |
| 546 | index++; |
| 547 | int g = data[index]; |
| 548 | index++; |
| 549 | int b = data[index]; |
| 550 | index++; |
| 551 | |
| 552 | if (image.HasMask()) |
| 553 | { |
| 554 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) |
| 555 | gdk_image_put_pixel( mask_image, x, y, 1 ); |
| 556 | else |
| 557 | gdk_image_put_pixel( mask_image, x, y, 0 ); |
| 558 | } |
| 559 | |
| 560 | switch (bpp) |
| 561 | { |
| 562 | case 8: |
| 563 | { |
| 564 | int pixel = -1; |
| 565 | if (wxTheApp->m_colorCube) |
| 566 | { |
| 567 | pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; |
| 568 | } |
| 569 | else |
| 570 | { |
| 571 | GdkColormap *cmap = gtk_widget_get_default_colormap(); |
| 572 | GdkColor *colors = cmap->colors; |
| 573 | int max = 3 * (65536); |
| 574 | |
| 575 | for (int i = 0; i < cmap->size; i++) |
| 576 | { |
| 577 | int rdiff = (r << 8) - colors[i].red; |
| 578 | int gdiff = (g << 8) - colors[i].green; |
| 579 | int bdiff = (b << 8) - colors[i].blue; |
| 580 | int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); |
| 581 | if (sum < max) { pixel = i; max = sum; } |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 586 | |
| 587 | break; |
| 588 | } |
| 589 | case 12: // SGI only |
| 590 | { |
| 591 | guint32 pixel = 0; |
| 592 | switch (b_o) |
| 593 | { |
| 594 | case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break; |
| 595 | case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break; |
| 596 | case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break; |
| 597 | case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break; |
| 598 | case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break; |
| 599 | case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break; |
| 600 | } |
| 601 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 602 | break; |
| 603 | } |
| 604 | case 15: |
| 605 | { |
| 606 | guint32 pixel = 0; |
| 607 | switch (b_o) |
| 608 | { |
| 609 | case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break; |
| 610 | case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break; |
| 611 | case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break; |
| 612 | case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break; |
| 613 | case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break; |
| 614 | case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break; |
| 615 | } |
| 616 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 617 | break; |
| 618 | } |
| 619 | case 16: |
| 620 | { |
| 621 | // I actually don't know if for 16-bit displays, it is alway the green |
| 622 | // component or the second component which has 6 bits. |
| 623 | guint32 pixel = 0; |
| 624 | switch (b_o) |
| 625 | { |
| 626 | case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break; |
| 627 | case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break; |
| 628 | case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break; |
| 629 | case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break; |
| 630 | case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break; |
| 631 | case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break; |
| 632 | } |
| 633 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 634 | break; |
| 635 | } |
| 636 | case 32: |
| 637 | case 24: |
| 638 | { |
| 639 | guint32 pixel = 0; |
| 640 | switch (b_o) |
| 641 | { |
| 642 | case RGB: pixel = (r << 16) | (g << 8) | b; break; |
| 643 | case RBG: pixel = (r << 16) | (b << 8) | g; break; |
| 644 | case BRG: pixel = (b << 16) | (r << 8) | g; break; |
| 645 | case BGR: pixel = (b << 16) | (g << 8) | r; break; |
| 646 | case GRB: pixel = (g << 16) | (r << 8) | b; break; |
| 647 | case GBR: pixel = (g << 16) | (b << 8) | r; break; |
| 648 | } |
| 649 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 650 | } |
| 651 | default: break; |
| 652 | } |
| 653 | } // for |
| 654 | } // for |
| 655 | |
| 656 | // Blit picture |
| 657 | |
| 658 | GdkGC *data_gc = gdk_gc_new( GetPixmap() ); |
| 659 | |
| 660 | gdk_draw_image( GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height ); |
| 661 | |
| 662 | gdk_image_destroy( data_image ); |
| 663 | gdk_gc_unref( data_gc ); |
| 664 | |
| 665 | // Blit mask |
| 666 | |
| 667 | if (image.HasMask()) |
| 668 | { |
| 669 | GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() ); |
| 670 | |
| 671 | gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); |
| 672 | |
| 673 | gdk_image_destroy( mask_image ); |
| 674 | gdk_gc_unref( mask_gc ); |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | return TRUE; |
| 679 | } |
| 680 | |
| 681 | wxImage wxBitmap::ConvertToImage() const |
| 682 | { |
| 683 | // the colour used as transparent one in wxImage and the one it is replaced |
| 684 | // with when it really occurs in the bitmap |
| 685 | static const int MASK_RED = 1; |
| 686 | static const int MASK_GREEN = 2; |
| 687 | static const int MASK_BLUE = 3; |
| 688 | static const int MASK_BLUE_REPLACEMENT = 2; |
| 689 | |
| 690 | wxImage image; |
| 691 | |
| 692 | wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); |
| 693 | |
| 694 | GdkImage *gdk_image = (GdkImage*) NULL; |
| 695 | if (GetPixmap()) |
| 696 | { |
| 697 | gdk_image = gdk_image_get( GetPixmap(), |
| 698 | 0, 0, |
| 699 | GetWidth(), GetHeight() ); |
| 700 | } |
| 701 | else if (GetBitmap()) |
| 702 | { |
| 703 | gdk_image = gdk_image_get( GetBitmap(), |
| 704 | 0, 0, |
| 705 | GetWidth(), GetHeight() ); |
| 706 | } |
| 707 | else |
| 708 | { |
| 709 | wxFAIL_MSG( wxT("Ill-formed bitmap") ); |
| 710 | } |
| 711 | |
| 712 | wxCHECK_MSG( gdk_image, wxNullImage, wxT("couldn't create image") ); |
| 713 | |
| 714 | image.Create( GetWidth(), GetHeight() ); |
| 715 | char unsigned *data = image.GetData(); |
| 716 | |
| 717 | if (!data) |
| 718 | { |
| 719 | gdk_image_destroy( gdk_image ); |
| 720 | wxFAIL_MSG( wxT("couldn't create image") ); |
| 721 | return wxNullImage; |
| 722 | } |
| 723 | |
| 724 | GdkImage *gdk_image_mask = (GdkImage*) NULL; |
| 725 | if (GetMask()) |
| 726 | { |
| 727 | gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(), |
| 728 | 0, 0, |
| 729 | GetWidth(), GetHeight() ); |
| 730 | |
| 731 | image.SetMaskColour( MASK_RED, MASK_GREEN, MASK_BLUE ); |
| 732 | } |
| 733 | |
| 734 | int bpp = -1; |
| 735 | int red_shift_right = 0; |
| 736 | int green_shift_right = 0; |
| 737 | int blue_shift_right = 0; |
| 738 | int red_shift_left = 0; |
| 739 | int green_shift_left = 0; |
| 740 | int blue_shift_left = 0; |
| 741 | bool use_shift = FALSE; |
| 742 | |
| 743 | if (GetPixmap()) |
| 744 | { |
| 745 | GdkVisual *visual = gdk_window_get_visual( GetPixmap() ); |
| 746 | if (visual == NULL) |
| 747 | visual = wxTheApp->GetGdkVisual(); |
| 748 | |
| 749 | bpp = visual->depth; |
| 750 | if (bpp == 16) |
| 751 | bpp = visual->red_prec + visual->green_prec + visual->blue_prec; |
| 752 | red_shift_right = visual->red_shift; |
| 753 | red_shift_left = 8-visual->red_prec; |
| 754 | green_shift_right = visual->green_shift; |
| 755 | green_shift_left = 8-visual->green_prec; |
| 756 | blue_shift_right = visual->blue_shift; |
| 757 | blue_shift_left = 8-visual->blue_prec; |
| 758 | |
| 759 | use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR); |
| 760 | } |
| 761 | if (GetBitmap()) |
| 762 | { |
| 763 | bpp = 1; |
| 764 | } |
| 765 | |
| 766 | |
| 767 | GdkColormap *cmap = gtk_widget_get_default_colormap(); |
| 768 | |
| 769 | long pos = 0; |
| 770 | for (int j = 0; j < GetHeight(); j++) |
| 771 | { |
| 772 | for (int i = 0; i < GetWidth(); i++) |
| 773 | { |
| 774 | wxUint32 pixel = gdk_image_get_pixel( gdk_image, i, j ); |
| 775 | if (bpp == 1) |
| 776 | { |
| 777 | if (pixel == 0) |
| 778 | { |
| 779 | data[pos] = 0; |
| 780 | data[pos+1] = 0; |
| 781 | data[pos+2] = 0; |
| 782 | } |
| 783 | else |
| 784 | { |
| 785 | data[pos] = 255; |
| 786 | data[pos+1] = 255; |
| 787 | data[pos+2] = 255; |
| 788 | } |
| 789 | } |
| 790 | else if (use_shift) |
| 791 | { |
| 792 | data[pos] = (pixel >> red_shift_right) << red_shift_left; |
| 793 | data[pos+1] = (pixel >> green_shift_right) << green_shift_left; |
| 794 | data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left; |
| 795 | } |
| 796 | else if (cmap->colors) |
| 797 | { |
| 798 | data[pos] = cmap->colors[pixel].red >> 8; |
| 799 | data[pos+1] = cmap->colors[pixel].green >> 8; |
| 800 | data[pos+2] = cmap->colors[pixel].blue >> 8; |
| 801 | } |
| 802 | else |
| 803 | { |
| 804 | wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") ); |
| 805 | } |
| 806 | |
| 807 | if (gdk_image_mask) |
| 808 | { |
| 809 | int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); |
| 810 | if (mask_pixel == 0) |
| 811 | { |
| 812 | data[pos] = MASK_RED; |
| 813 | data[pos+1] = MASK_GREEN; |
| 814 | data[pos+2] = MASK_BLUE; |
| 815 | } |
| 816 | else if ( data[pos] == MASK_RED && |
| 817 | data[pos+1] == MASK_GREEN && |
| 818 | data[pos+2] == MASK_BLUE ) |
| 819 | { |
| 820 | data[pos+2] = MASK_BLUE_REPLACEMENT; |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | pos += 3; |
| 825 | } |
| 826 | } |
| 827 | |
| 828 | gdk_image_destroy( gdk_image ); |
| 829 | if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); |
| 830 | |
| 831 | return image; |
| 832 | } |
| 833 | |
| 834 | wxBitmap::wxBitmap( const wxBitmap& bmp ) |
| 835 | : wxGDIObject() |
| 836 | { |
| 837 | Ref( bmp ); |
| 838 | } |
| 839 | |
| 840 | wxBitmap::wxBitmap( const wxString &filename, int type ) |
| 841 | { |
| 842 | LoadFile( filename, type ); |
| 843 | } |
| 844 | |
| 845 | wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth)) |
| 846 | { |
| 847 | m_refData = new wxBitmapRefData(); |
| 848 | |
| 849 | M_BMPDATA->m_mask = (wxMask *) NULL; |
| 850 | M_BMPDATA->m_bitmap = |
| 851 | gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height ); |
| 852 | M_BMPDATA->m_width = width; |
| 853 | M_BMPDATA->m_height = height; |
| 854 | M_BMPDATA->m_bpp = 1; |
| 855 | |
| 856 | wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") ); |
| 857 | } |
| 858 | |
| 859 | wxBitmap::~wxBitmap() |
| 860 | { |
| 861 | } |
| 862 | |
| 863 | wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp ) |
| 864 | { |
| 865 | if ( m_refData != bmp.m_refData ) |
| 866 | Ref( bmp ); |
| 867 | |
| 868 | return *this; |
| 869 | } |
| 870 | |
| 871 | bool wxBitmap::operator == ( const wxBitmap& bmp ) const |
| 872 | { |
| 873 | return m_refData == bmp.m_refData; |
| 874 | } |
| 875 | |
| 876 | bool wxBitmap::operator != ( const wxBitmap& bmp ) const |
| 877 | { |
| 878 | return m_refData != bmp.m_refData; |
| 879 | } |
| 880 | |
| 881 | bool wxBitmap::Ok() const |
| 882 | { |
| 883 | return (m_refData != NULL); |
| 884 | } |
| 885 | |
| 886 | int wxBitmap::GetHeight() const |
| 887 | { |
| 888 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); |
| 889 | |
| 890 | return M_BMPDATA->m_height; |
| 891 | } |
| 892 | |
| 893 | int wxBitmap::GetWidth() const |
| 894 | { |
| 895 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); |
| 896 | |
| 897 | return M_BMPDATA->m_width; |
| 898 | } |
| 899 | |
| 900 | int wxBitmap::GetDepth() const |
| 901 | { |
| 902 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); |
| 903 | |
| 904 | return M_BMPDATA->m_bpp; |
| 905 | } |
| 906 | |
| 907 | wxMask *wxBitmap::GetMask() const |
| 908 | { |
| 909 | wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") ); |
| 910 | |
| 911 | return M_BMPDATA->m_mask; |
| 912 | } |
| 913 | |
| 914 | void wxBitmap::SetMask( wxMask *mask ) |
| 915 | { |
| 916 | wxCHECK_RET( Ok(), wxT("invalid bitmap") ); |
| 917 | |
| 918 | if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; |
| 919 | |
| 920 | M_BMPDATA->m_mask = mask; |
| 921 | } |
| 922 | |
| 923 | bool wxBitmap::CopyFromIcon(const wxIcon& icon) |
| 924 | { |
| 925 | *this = icon; |
| 926 | return TRUE; |
| 927 | } |
| 928 | |
| 929 | wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const |
| 930 | { |
| 931 | wxCHECK_MSG( Ok() && |
| 932 | (rect.x >= 0) && (rect.y >= 0) && |
| 933 | (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height), |
| 934 | wxNullBitmap, wxT("invalid bitmap or bitmap region") ); |
| 935 | |
| 936 | wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp ); |
| 937 | wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); |
| 938 | |
| 939 | if (ret.GetPixmap()) |
| 940 | { |
| 941 | GdkGC *gc = gdk_gc_new( ret.GetPixmap() ); |
| 942 | gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height ); |
| 943 | gdk_gc_destroy( gc ); |
| 944 | } |
| 945 | else |
| 946 | { |
| 947 | GdkGC *gc = gdk_gc_new( ret.GetBitmap() ); |
| 948 | gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height ); |
| 949 | gdk_gc_destroy( gc ); |
| 950 | } |
| 951 | |
| 952 | if (GetMask()) |
| 953 | { |
| 954 | wxMask *mask = new wxMask; |
| 955 | mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 ); |
| 956 | |
| 957 | GdkGC *gc = gdk_gc_new( mask->m_bitmap ); |
| 958 | gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height ); |
| 959 | gdk_gc_destroy( gc ); |
| 960 | |
| 961 | ret.SetMask( mask ); |
| 962 | } |
| 963 | |
| 964 | return ret; |
| 965 | } |
| 966 | |
| 967 | bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) ) |
| 968 | { |
| 969 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") ); |
| 970 | |
| 971 | // Try to save the bitmap via wxImage handlers: |
| 972 | { |
| 973 | wxImage image = ConvertToImage(); |
| 974 | if (image.Ok()) return image.SaveFile( name, type ); |
| 975 | } |
| 976 | |
| 977 | return FALSE; |
| 978 | } |
| 979 | |
| 980 | bool wxBitmap::LoadFile( const wxString &name, int type ) |
| 981 | { |
| 982 | UnRef(); |
| 983 | |
| 984 | if (!wxFileExists(name)) return FALSE; |
| 985 | |
| 986 | GdkVisual *visual = wxTheApp->GetGdkVisual(); |
| 987 | |
| 988 | if (type == wxBITMAP_TYPE_XPM) |
| 989 | { |
| 990 | m_refData = new wxBitmapRefData(); |
| 991 | |
| 992 | GdkBitmap *mask = (GdkBitmap*) NULL; |
| 993 | |
| 994 | M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( wxGetRootWindow()->window, &mask, NULL, name.fn_str() ); |
| 995 | |
| 996 | if (mask) |
| 997 | { |
| 998 | M_BMPDATA->m_mask = new wxMask(); |
| 999 | M_BMPDATA->m_mask->m_bitmap = mask; |
| 1000 | } |
| 1001 | |
| 1002 | gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); |
| 1003 | |
| 1004 | M_BMPDATA->m_bpp = visual->depth; |
| 1005 | } |
| 1006 | else // try if wxImage can load it |
| 1007 | { |
| 1008 | wxImage image; |
| 1009 | if (!image.LoadFile( name, type )) return FALSE; |
| 1010 | if (image.Ok()) |
| 1011 | *this = wxBitmap(image); |
| 1012 | else return FALSE; |
| 1013 | } |
| 1014 | |
| 1015 | return TRUE; |
| 1016 | } |
| 1017 | |
| 1018 | wxPalette *wxBitmap::GetPalette() const |
| 1019 | { |
| 1020 | if (!Ok()) return (wxPalette *) NULL; |
| 1021 | |
| 1022 | return M_BMPDATA->m_palette; |
| 1023 | } |
| 1024 | |
| 1025 | void wxBitmap::SetHeight( int height ) |
| 1026 | { |
| 1027 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 1028 | |
| 1029 | M_BMPDATA->m_height = height; |
| 1030 | } |
| 1031 | |
| 1032 | void wxBitmap::SetWidth( int width ) |
| 1033 | { |
| 1034 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 1035 | |
| 1036 | M_BMPDATA->m_width = width; |
| 1037 | } |
| 1038 | |
| 1039 | void wxBitmap::SetDepth( int depth ) |
| 1040 | { |
| 1041 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 1042 | |
| 1043 | M_BMPDATA->m_bpp = depth; |
| 1044 | } |
| 1045 | |
| 1046 | void wxBitmap::SetPixmap( GdkPixmap *pixmap ) |
| 1047 | { |
| 1048 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 1049 | |
| 1050 | M_BMPDATA->m_pixmap = pixmap; |
| 1051 | } |
| 1052 | |
| 1053 | void wxBitmap::SetBitmap( GdkPixmap *bitmap ) |
| 1054 | { |
| 1055 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 1056 | |
| 1057 | M_BMPDATA->m_bitmap = bitmap; |
| 1058 | } |
| 1059 | |
| 1060 | GdkPixmap *wxBitmap::GetPixmap() const |
| 1061 | { |
| 1062 | wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") ); |
| 1063 | |
| 1064 | return M_BMPDATA->m_pixmap; |
| 1065 | } |
| 1066 | |
| 1067 | GdkBitmap *wxBitmap::GetBitmap() const |
| 1068 | { |
| 1069 | wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") ); |
| 1070 | |
| 1071 | return M_BMPDATA->m_bitmap; |
| 1072 | } |