1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/x11/bitmap.cpp
4 // Author: Julian Smart, Robert Roebling
8 // Copyright: (c) Julian Smart, Robert Roebling
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
12 // for compilers that support precompilation, includes "wx.h".
13 #include "wx/wxprec.h"
15 #include "wx/bitmap.h"
20 #include "wx/dcmemory.h"
26 #include "wx/x11/private.h"
28 /* No point in using libXPM for NanoX */
31 #define wxHAVE_LIB_XPM 0
33 // Copy from the drawable to the wxImage
34 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
41 #include "wx/xpmdecod.h"
42 #include "wx/wfstream.h"
46 //-----------------------------------------------------------------------------
48 //-----------------------------------------------------------------------------
50 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
58 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
61 Create( bitmap, colour );
64 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
67 Create( bitmap, paletteIndex );
70 wxMask::wxMask( const wxBitmap& bitmap )
79 XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
82 bool wxMask::Create( const wxBitmap& bitmap,
83 const wxColour& colour )
88 XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
92 m_display = bitmap.GetDisplay();
94 wxImage image = bitmap.ConvertToImage();
95 if (!image.Ok()) return false;
97 m_display = bitmap.GetDisplay();
99 Display *xdisplay = (Display*) m_display;
100 int xscreen = DefaultScreen( xdisplay );
101 Window xroot = RootWindow( xdisplay, xscreen );
103 m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
104 GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
106 XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
107 XSetFillStyle( xdisplay, gc, FillSolid );
108 XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
110 unsigned char *data = image.GetData();
113 unsigned char red = colour.Red();
114 unsigned char green = colour.Green();
115 unsigned char blue = colour.Blue();
117 int bpp = wxTheApp->GetVisualInfo(m_display)->m_visualDepth;
138 XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
140 int width = image.GetWidth();
141 int height = image.GetHeight();
142 for (int j = 0; j < height; j++)
146 for (i = 0; i < width; i++)
148 if ((data[index] == red) &&
149 (data[index+1] == green) &&
150 (data[index+2] == blue))
159 XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
166 XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
169 XFreeGC( xdisplay, gc );
178 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
181 wxPalette *pal = bitmap.GetPalette();
183 wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") );
185 pal->GetRGB(paletteIndex, &r, &g, &b);
187 return Create(bitmap, wxColour(r, g, b));
190 bool wxMask::Create( const wxBitmap& bitmap )
195 XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
199 if (!bitmap.Ok()) return false;
201 wxCHECK_MSG( bitmap.GetBitmap(), false, wxT("Cannot create mask from colour bitmap") );
203 m_display = bitmap.GetDisplay();
205 int xscreen = DefaultScreen( (Display*) m_display );
206 Window xroot = RootWindow( (Display*) m_display, xscreen );
208 m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
210 if (!m_bitmap) return false;
212 GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
214 XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
215 gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
217 XFreeGC( (Display*) m_display, gc );
226 //-----------------------------------------------------------------------------
228 //-----------------------------------------------------------------------------
230 class wxBitmapRefData: public wxObjectRefData
234 wxBitmapRefData(const wxBitmapRefData& data);
235 virtual ~wxBitmapRefData();
237 // shouldn't be called more than once as it doesn't free the existing data
238 bool Create(int width, int height, int depth);
247 wxPalette *m_palette;
250 wxBitmapRefData::wxBitmapRefData()
259 m_palette = (wxPalette *) NULL;
262 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
266 m_display = data.m_display;
267 m_mask = NULL; // FIXME: should copy
268 m_palette = NULL; // FIXME: should copy
270 Create(data.m_width, data.m_height, data.m_bpp);
273 bool wxBitmapRefData::Create(int width, int height, int depth)
279 m_display = wxGlobalDisplay();
281 wxCHECK_MSG( m_display, false, wxT("No display") );
283 int xscreen = DefaultScreen(m_display);
284 int bpp = DefaultDepth(m_display, xscreen);
288 wxCHECK_MSG( (depth == bpp) || (depth == 1), false,
289 wxT("invalid bitmap depth") );
292 m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
293 #else // !wxUSE_NANOX
294 Window xroot = RootWindow(m_display, xscreen);
296 *(depth == 1 ? &m_bitmap : &m_pixmap) =
297 XCreatePixmap(m_display, xroot, width, height, depth);
298 #endif // wxUSE_NANOX/!wxUSE_NANOX
300 wxCHECK_MSG( m_pixmap || m_bitmap, false, wxT("Bitmap creation failed") );
305 wxBitmapRefData::~wxBitmapRefData()
308 XFreePixmap(m_display, m_pixmap);
310 XFreePixmap(m_display, m_bitmap);
315 //-----------------------------------------------------------------------------
319 static WXPixmap wxGetSubPixmap( WXDisplay* xdisplay, WXPixmap xpixmap,
320 int x, int y, int width, int height,
323 Display * const dpy = (Display *)xdisplay;
325 int xscreen = DefaultScreen( dpy );
326 Window xroot = RootWindow( dpy, xscreen );
327 Visual* xvisual = DefaultVisual( dpy, xscreen );
329 XImage* ximage = XCreateImage( dpy, xvisual, depth,
330 ZPixmap, 0, 0, width, height, 32, 0 );
331 ximage->data = (char*)malloc( ximage->bytes_per_line * ximage->height );
332 ximage = XGetSubImage( dpy, (Pixmap)xpixmap,
334 AllPlanes, ZPixmap, ximage, 0, 0 );
336 GC gc = XCreateGC( dpy, (Pixmap)xpixmap, 0, NULL );
337 Pixmap ret = XCreatePixmap( dpy, xroot,
338 width, height, depth );
340 XPutImage( dpy, ret, gc, ximage,
341 0, 0, 0, 0, width, height );
342 XDestroyImage( ximage );
345 return (WXPixmap)ret;
348 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
350 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
356 wxBitmap::wxBitmap( int width, int height, int depth )
358 Create( width, height, depth );
361 bool wxBitmap::Create( int width, int height, int depth )
365 wxCHECK_MSG( (width > 0) && (height > 0), false, wxT("invalid bitmap size") );
367 m_refData = new wxBitmapRefData();
369 return M_BMPDATA->Create(width, height, depth);
372 bool wxBitmap::Create(const void* data, wxBitmapType type,
373 int width, int height, int depth)
377 wxBitmapHandler *handler = FindHandler(type);
379 if ( handler == NULL ) {
380 wxLogWarning(wxT("no data bitmap handler for type %ld defined."),
386 return handler->Create(this, data, type, width, height, depth);
389 bool wxBitmap::Create(WXPixmap pixmap)
392 Pixmap xpixmap = (Pixmap)pixmap;
393 Display* xdisplay = wxGlobalDisplay();
394 int xscreen = DefaultScreen( xdisplay );
395 Window xroot = RootWindow( xdisplay, xscreen );
397 // make a copy of the Pixmap
400 unsigned width, height, border, depth;
402 XGetGeometry( xdisplay, (Drawable)xpixmap, &root, &x, &y,
403 &width, &height, &border, &depth );
404 Pixmap copy = XCreatePixmap( xdisplay, xroot, width, height, depth );
406 GC gc = XCreateGC( xdisplay, copy, 0, NULL );
407 XCopyArea( xdisplay, xpixmap, copy, gc, 0, 0, width, height, 0, 0 );
408 XFreeGC( xdisplay, gc );
411 wxBitmapRefData* ref = new wxBitmapRefData();
414 ref->m_bitmap = copy;
416 ref->m_pixmap = copy;
418 ref->m_display = xdisplay;
419 ref->m_width = width;
420 ref->m_height = height;
428 wxBitmap::wxBitmap(const char* const* bits)
430 Create(bits, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
433 wxObjectRefData *wxBitmap::CreateRefData() const
435 return new wxBitmapRefData;
438 wxObjectRefData *wxBitmap::CloneRefData(const wxObjectRefData *data) const
440 return new wxBitmapRefData(*wx_static_cast(const wxBitmapRefData *, data));
443 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
448 wxASSERT_MSG(image.Ok(), wxT("Invalid wxImage passed to wxBitmap::CreateFromImage."));
452 int w = image.GetWidth();
453 int h = image.GetHeight();
455 if (!Create(w, h, depth))
458 // Unfortunately the mask has to be screen-depth since
459 // 1-bpp bitmaps don't seem to be supported
460 // TODO: implement transparent drawing, presumably
461 // by doing several blits as per the Windows
462 // implementation because Nano-X doesn't support
464 // TODO: could perhaps speed this function up
465 // by making a buffer of pixel values,
466 // and then calling GrArea to write that to the
467 // pixmap. See demos/nxroach.c.
469 bool hasMask = image.HasMask();
471 GC pixmapGC = GrNewGC();
472 Pixmap pixmap = (Pixmap) GetPixmap();
475 Pixmap maskPixmap = 0;
477 unsigned char maskR = 0;
478 unsigned char maskG = 0;
479 unsigned char maskB = 0;
483 maskR = image.GetMaskRed();
484 maskG = image.GetMaskGreen();
485 maskB = image.GetMaskBlue();
488 maskPixmap = GrNewPixmap(w, h, 0);
493 wxMask* mask = new wxMask;
494 mask->SetBitmap((WXPixmap) maskPixmap);
499 GR_COLOR lastPixmapColour = 0;
500 GR_COLOR lastMaskColour = 0;
503 for (i = 0; i < w; i++)
505 for (j = 0; j < h; j++)
507 unsigned char red = image.GetRed(i, j);
508 unsigned char green = image.GetGreen(i, j);
509 unsigned char blue = image.GetBlue(i, j);
511 GR_COLOR colour = GR_RGB(red, green, blue);
513 // Efficiency measure
514 if (colour != lastPixmapColour || (i == 0 && j == 0))
516 GrSetGCForeground(pixmapGC, colour);
517 lastPixmapColour = colour;
520 GrPoint(pixmap, pixmapGC, i, j);
524 // scan the bitmap for the transparent colour and set the corresponding
525 // pixels in the mask to BLACK and the rest to WHITE
526 if (maskR == red && maskG == green && maskB == blue)
528 colour = GR_RGB(0, 0, 0);
532 colour = GR_RGB(255, 255, 255);
534 if (colour != lastMaskColour || (i == 0 && j == 0))
536 GrSetGCForeground(maskGC, colour);
537 lastMaskColour = colour;
539 GrPoint(maskPixmap, maskGC, i, j);
544 GrDestroyGC(pixmapGC);
554 wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
555 wxCHECK_MSG( depth == -1, false, wxT("invalid bitmap depth") );
557 m_refData = new wxBitmapRefData();
559 M_BMPDATA->m_display = wxGlobalDisplay();
561 Display *xdisplay = (Display*) M_BMPDATA->m_display;
563 int xscreen = DefaultScreen( xdisplay );
564 Window xroot = RootWindow( xdisplay, xscreen );
565 Visual* xvisual = DefaultVisual( xdisplay, xscreen );
567 int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
569 int width = image.GetWidth();
570 int height = image.GetHeight();
571 M_BMPDATA->m_width = width;
572 M_BMPDATA->m_height = height;
574 if (depth != 1) depth = bpp;
575 M_BMPDATA->m_bpp = depth;
579 wxFAIL_MSG( wxT("mono images later") );
585 XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
586 data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
588 if (data_image->data == NULL)
590 wxLogError( wxT("Out of memory.") ); // TODO clean
594 M_BMPDATA->m_pixmap = XCreatePixmap( xdisplay, xroot, width, height, depth );
596 // Create mask if necessary
597 const bool hasMask = image.HasMask();
599 XImage *mask_image = (XImage*) NULL;
602 mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
603 mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
605 if (mask_image->data == NULL)
607 wxLogError( wxT("Out of memory.") ); // TODO clean
611 wxMask *mask = new wxMask();
612 mask->SetDisplay( xdisplay );
613 mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
618 if (bpp < 8) bpp = 8;
622 enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
623 byte_order b_o = RGB;
625 wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
626 unsigned long greenMask = vi->m_visualGreenMask,
627 redMask = vi->m_visualRedMask,
628 blueMask = vi->m_visualBlueMask;
632 if ((redMask > greenMask) && (greenMask > blueMask)) b_o = RGB;
633 else if ((redMask > blueMask) && (blueMask > greenMask)) b_o = RBG;
634 else if ((blueMask > redMask) && (redMask > greenMask)) b_o = BRG;
635 else if ((blueMask > greenMask) && (greenMask > redMask))b_o = BGR;
636 else if ((greenMask > redMask) && (redMask > blueMask)) b_o = GRB;
637 else if ((greenMask > blueMask) && (blueMask > redMask)) b_o = GBR;
640 int r_mask = image.GetMaskRed();
641 int g_mask = image.GetMaskGreen();
642 int b_mask = image.GetMaskBlue();
644 unsigned char* data = image.GetData();
645 wxASSERT_MSG( data, wxT("No image data") );
647 unsigned char *colorCube =
648 wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_colorCube;
651 for (int y = 0; y < height; y++)
653 for (int x = 0; x < width; x++)
664 if ((r == r_mask) && (b == b_mask) && (g == g_mask))
665 XPutPixel( mask_image, x, y, 0 );
667 XPutPixel( mask_image, x, y, 1 );
675 pixel = colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
676 XPutPixel( data_image, x, y, pixel );
684 case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
685 case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
686 case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
687 case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
688 case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
689 case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
691 XPutPixel( data_image, x, y, pixel );
699 case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
700 case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
701 case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
702 case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
703 case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
704 case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
706 XPutPixel( data_image, x, y, pixel );
711 // I actually don't know if for 16-bit displays, it is alway the green
712 // component or the second component which has 6 bits.
716 case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
717 case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
718 case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
719 case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
720 case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
721 case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
723 XPutPixel( data_image, x, y, pixel );
732 case RGB: pixel = (r << 16) | (g << 8) | b; break;
733 case RBG: pixel = (r << 16) | (b << 8) | g; break;
734 case BRG: pixel = (b << 16) | (r << 8) | g; break;
735 case BGR: pixel = (b << 16) | (g << 8) | r; break;
736 case GRB: pixel = (g << 16) | (r << 8) | b; break;
737 case GBR: pixel = (g << 16) | (b << 8) | r; break;
739 XPutPixel( data_image, x, y, pixel );
748 GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
749 XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
750 XDestroyImage( data_image );
751 XFreeGC( xdisplay, gc );
757 GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
758 XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
760 XDestroyImage( mask_image );
761 XFreeGC( xdisplay, gc );
770 wxImage wxBitmap::ConvertToImage() const
774 wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
776 Display *xdisplay = (Display*) M_BMPDATA->m_display;
777 wxASSERT_MSG( xdisplay, wxT("No display") );
780 //int bpp = DefaultDepth(xdisplay, xscreen);
781 wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
785 int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
786 XImage *x_image = NULL;
789 x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
791 GetWidth(), GetHeight(),
792 AllPlanes, ZPixmap );
796 x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
798 GetWidth(), GetHeight(),
799 AllPlanes, ZPixmap );
802 wxFAIL_MSG( wxT("Ill-formed bitmap") );
805 wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
807 image.Create( GetWidth(), GetHeight() );
808 char unsigned *data = image.GetData();
812 XDestroyImage( x_image );
813 wxFAIL_MSG( wxT("couldn't create image") );
817 XImage *x_image_mask = NULL;
820 x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
822 GetWidth(), GetHeight(),
823 AllPlanes, ZPixmap );
825 image.SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable
828 int red_shift_right = 0;
829 int green_shift_right = 0;
830 int blue_shift_right = 0;
831 int red_shift_left = 0;
832 int green_shift_left = 0;
833 int blue_shift_left = 0;
834 bool use_shift = false;
838 wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
840 red_shift_right = vi->m_visualRedShift;
841 red_shift_left = 8 - vi->m_visualRedPrec;
842 green_shift_right = vi->m_visualGreenShift;
843 green_shift_left = 8 - vi->m_visualGreenPrec;
844 blue_shift_right = vi->m_visualBlueShift;
845 blue_shift_left = 8 - vi->m_visualBluePrec;
847 use_shift = (vi->m_visualType == GrayScale) ||
848 (vi->m_visualType != PseudoColor);
856 XColor *colors = (XColor*)wxTheApp->
857 GetVisualInfo(M_BMPDATA->m_display)->m_visualColormap;
859 int width = GetWidth();
860 int height = GetHeight();
862 for (int j = 0; j < height; j++)
864 for (int i = 0; i < width; i++)
866 unsigned long pixel = XGetPixel( x_image, i, j );
884 data[pos] = (unsigned char)((pixel >> red_shift_right) << red_shift_left);
885 data[pos+1] = (unsigned char)((pixel >> green_shift_right) << green_shift_left);
886 data[pos+2] = (unsigned char)((pixel >> blue_shift_right) << blue_shift_left);
890 data[pos] = (unsigned char)(colors[pixel].red >> 8);
891 data[pos+1] = (unsigned char)(colors[pixel].green >> 8);
892 data[pos+2] = (unsigned char)(colors[pixel].blue >> 8);
896 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
901 int mask_pixel = XGetPixel( x_image_mask, i, j );
914 XDestroyImage( x_image );
915 if (x_image_mask) XDestroyImage( x_image_mask );
921 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
923 LoadFile( filename, type );
926 wxBitmap::wxBitmap( const char bits[], int width, int height, int depth )
928 m_refData = new wxBitmapRefData;
930 (void) Create(bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
933 wxBitmap::~wxBitmap()
937 bool wxBitmap::IsOk() const
939 return (m_refData != NULL);
942 int wxBitmap::GetHeight() const
944 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
946 return M_BMPDATA->m_height;
949 int wxBitmap::GetWidth() const
951 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
953 return M_BMPDATA->m_width;
956 int wxBitmap::GetDepth() const
958 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
960 return M_BMPDATA->m_bpp;
963 wxMask *wxBitmap::GetMask() const
965 wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
967 return M_BMPDATA->m_mask;
970 void wxBitmap::SetMask( wxMask *mask )
972 wxCHECK_RET( Ok(), wxT("invalid bitmap") );
975 if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
977 M_BMPDATA->m_mask = mask;
980 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
986 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
989 (rect.x >= 0) && (rect.y >= 0) &&
990 (rect.x+rect.width <= M_BMPDATA->m_width ) &&
991 (rect.y+rect.height <= M_BMPDATA->m_height),
992 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
994 wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
995 wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
999 wxMask* mask = new wxMask();
1000 mask->SetDisplay( GetMask()->GetDisplay() );
1001 mask->SetBitmap( wxGetSubPixmap( GetMask()->GetDisplay(),
1002 GetMask()->GetBitmap(),
1004 rect.width, rect.height,
1007 ret.SetMask( mask );
1012 ret.SetPixmap( wxGetSubPixmap( GetDisplay(),
1015 rect.width, rect.height,
1016 M_BMPDATA->m_bpp ) );
1021 ret.SetBitmap( wxGetSubPixmap( GetDisplay(),
1024 rect.width, rect.height,
1031 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type,
1032 const wxPalette *palette ) const
1034 wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1036 wxBitmapHandler *handler = FindHandler(type);
1038 // Try to save the bitmap via wxImage handlers:
1039 if (handler == NULL)
1041 wxImage image(this->ConvertToImage());
1042 if (image.Ok()) return image.SaveFile( name, type );
1047 return handler->SaveFile(this, name, type, palette);
1050 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1054 if (!wxFileExists(name)) return false;
1056 wxBitmapHandler *handler = FindHandler(type);
1058 if (handler == NULL)
1061 if (!image.LoadFile( name, type ))
1066 *this = wxBitmap(image);
1072 return handler->LoadFile(this, name, type, -1, -1);
1075 void wxBitmap::SetPalette(const wxPalette& palette)
1077 wxCHECK_RET(Ok(), wxT("invalid bitmap"));
1078 wxCHECK_RET(GetDepth() > 1 && GetDepth() <= 8,
1079 wxT("cannot set palette for bitmap of this depth"));
1082 delete M_BMPDATA->m_palette;
1083 M_BMPDATA->m_palette = NULL;
1085 if (!palette.Ok()) return;
1087 M_BMPDATA->m_palette = new wxPalette(palette);
1090 wxPalette *wxBitmap::GetPalette() const
1092 if (!Ok()) return (wxPalette *) NULL;
1094 return M_BMPDATA->m_palette;
1097 void wxBitmap::SetHeight( int height )
1101 M_BMPDATA->m_height = height;
1104 void wxBitmap::SetWidth( int width )
1108 M_BMPDATA->m_width = width;
1111 void wxBitmap::SetDepth( int depth )
1115 M_BMPDATA->m_bpp = depth;
1118 void wxBitmap::SetPixmap( WXPixmap pixmap )
1120 if (!m_refData) m_refData = new wxBitmapRefData();
1122 M_BMPDATA->m_pixmap = (Pixmap)pixmap;
1125 void wxBitmap::SetBitmap( WXPixmap bitmap )
1127 if (!m_refData) m_refData = new wxBitmapRefData();
1129 M_BMPDATA->m_bitmap = (Pixmap)bitmap;
1132 WXPixmap wxBitmap::GetPixmap() const
1134 wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1136 return (WXPixmap)M_BMPDATA->m_pixmap;
1139 WXPixmap wxBitmap::GetBitmap() const
1141 wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1143 return (WXPixmap)M_BMPDATA->m_bitmap;
1146 WXPixmap wxBitmap::GetDrawable() const
1148 wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1150 return (WXPixmap)(M_BMPDATA->m_bpp == 1 ? M_BMPDATA->m_bitmap
1151 : M_BMPDATA->m_pixmap);
1154 WXDisplay *wxBitmap::GetDisplay() const
1156 wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1158 return M_BMPDATA->m_display;
1162 // Copy from the drawable to the wxImage
1163 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1165 GR_SCREEN_INFO sinfo;
1167 GR_PIXELVAL *pixels;
1168 GR_PALETTE* palette = NULL;
1169 unsigned char rgb[3], *pp;
1171 GrGetScreenInfo(&sinfo);
1173 if (sinfo.pixtype == MWPF_PALETTE) {
1174 if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1177 GrGetSystemPalette(palette);
1180 if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1185 image.Create(width, height);
1187 GrReadArea(drawable, srcX, srcY, width, height,
1191 for(x = 0; x < sinfo.cols; x++) {
1193 pp = (unsigned char *)pixels +
1194 ((x + (y * sinfo.cols)) *
1195 sizeof(GR_PIXELVAL));
1197 switch(sinfo.pixtype) {
1198 /* FIXME: These may need modifying on big endian. */
1199 case MWPF_TRUECOLOR0888:
1200 case MWPF_TRUECOLOR888:
1206 rgb[0] = palette->palette[pp[0]].r;
1207 rgb[1] = palette->palette[pp[0]].g;
1208 rgb[2] = palette->palette[pp[0]].b;
1210 case MWPF_TRUECOLOR565:
1211 rgb[0] = pp[1] & 0xf8;
1212 rgb[1] = ((pp[1] & 0x07) << 5) |
1213 ((pp[0] & 0xe0) >> 3);
1214 rgb[2] = (pp[0] & 0x1f) << 3;
1216 case MWPF_TRUECOLOR555:
1217 rgb[0] = (pp[1] & 0x7c) << 1;
1218 rgb[1] = ((pp[1] & 0x03) << 6) |
1219 ((pp[0] & 0xe0) >> 2);
1220 rgb[2] = (pp[0] & 0x1f) << 3;
1222 case MWPF_TRUECOLOR332:
1223 rgb[0] = pp[0] & 0xe0;
1224 rgb[1] = (pp[0] & 0x1c) << 3;
1225 rgb[2] = (pp[0] & 0x03) << 6;
1228 fprintf(stderr, "Unsupported pixel "
1233 image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1238 if(palette) free(palette);
1244 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1245 unsigned char* red, unsigned char* green, unsigned char* blue)
1247 unsigned char rgb[3], *pp;
1249 pp = (unsigned char*) & pixel ;
1251 switch (sinfo.pixtype)
1253 /* FIXME: These may need modifying on big endian. */
1254 case MWPF_TRUECOLOR0888:
1255 case MWPF_TRUECOLOR888:
1261 rgb[0] = palette->palette[pp[0]].r;
1262 rgb[1] = palette->palette[pp[0]].g;
1263 rgb[2] = palette->palette[pp[0]].b;
1265 case MWPF_TRUECOLOR565:
1266 rgb[0] = pp[1] & 0xf8;
1267 rgb[1] = ((pp[1] & 0x07) << 5) |
1268 ((pp[0] & 0xe0) >> 3);
1269 rgb[2] = (pp[0] & 0x1f) << 3;
1271 case MWPF_TRUECOLOR555:
1272 rgb[0] = (pp[1] & 0x7c) << 1;
1273 rgb[1] = ((pp[1] & 0x03) << 6) |
1274 ((pp[0] & 0xe0) >> 2);
1275 rgb[2] = (pp[0] & 0x1f) << 3;
1277 case MWPF_TRUECOLOR332:
1278 rgb[0] = pp[0] & 0xe0;
1279 rgb[1] = (pp[0] & 0x1c) << 3;
1280 rgb[2] = (pp[0] & 0x03) << 6;
1283 fprintf(stderr, "Unsupported pixel format\n");
1298 // ============================================================================
1300 // ============================================================================
1302 IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase)
1304 #define M_BMPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
1308 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1310 // ----------------------------------------------------------------------------
1312 // ----------------------------------------------------------------------------
1314 class wxXPMFileHandler : public wxBitmapHandler
1316 DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
1320 SetName( wxT("XPM file") );
1321 SetExtension( wxT("xpm") );
1322 SetType( wxBITMAP_TYPE_XPM );
1325 virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1326 int desiredWidth, int desiredHeight);
1328 virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1329 int type, const wxPalette *palette = NULL);
1331 virtual bool Create(wxBitmap *WXUNUSED(bitmap), const void* WXUNUSED(data), long WXUNUSED(flags),
1332 int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth) = 1)
1336 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
1338 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name,
1339 long WXUNUSED(flags), int WXUNUSED(desiredWidth),
1340 int WXUNUSED(desiredHeight))
1343 if (!bitmap->GetRefData())
1344 bitmap->SetRefData( new wxBitmapRefData() );
1346 M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1348 Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1350 int xscreen = DefaultScreen( xdisplay );
1351 Window xroot = RootWindow( xdisplay, xscreen );
1353 int bpp = DefaultDepth( xdisplay, xscreen );
1355 XpmAttributes xpmAttr;
1356 xpmAttr.valuemask = XpmReturnInfos; // nothing yet, but get infos back
1361 int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot,
1362 (char*) ((const char*) name.c_str()),
1363 &pixmap, &mask, &xpmAttr);
1365 if (ErrorStatus == XpmSuccess)
1367 M_BMPHANDLERDATA->m_width = xpmAttr.width;
1368 M_BMPHANDLERDATA->m_height = xpmAttr.height;
1370 M_BMPHANDLERDATA->m_bpp = bpp; // mono as well?
1372 XpmFreeAttributes(&xpmAttr);
1374 M_BMPHANDLERDATA->m_bitmap = (Pixmap) pixmap;
1378 M_BMPHANDLERDATA->m_mask = new wxMask;
1379 M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1380 M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1392 wxXPMDecoder decoder;
1393 wxFileInputStream stream(name);
1396 wxImage image(decoder.ReadFile(stream));
1397 return image.Ok() && bitmap->CreateFromImage(image);
1401 #else // !wxHAVE_LIB_XPM && !wxUSE_STREAMS
1403 #endif // wxHAVE_LIB_XPM / wxUSE_STREAMS
1406 bool wxXPMFileHandler::SaveFile(const wxBitmap *bitmap, const wxString& name,
1408 const wxPalette *WXUNUSED(palette))
1410 wxImage image(bitmap->ConvertToImage());
1411 if (image.Ok()) return image.SaveFile( name, (wxBitmapType)type );
1416 #endif // wxHAVE_LIB_XPM || wxUSE_STREAMS
1418 // ----------------------------------------------------------------------------
1420 // ----------------------------------------------------------------------------
1422 class wxXPMDataHandler : public wxBitmapHandler
1424 DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
1428 SetName( wxT("XPM data") );
1429 SetExtension( wxT("xpm") );
1430 SetType( wxBITMAP_TYPE_XPM_DATA );
1433 virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1434 const wxString& WXUNUSED(name),
1435 long WXUNUSED(flags),
1436 int WXUNUSED(desiredWidth),
1437 int WXUNUSED(desiredHeight))
1440 virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1441 const wxString& WXUNUSED(name),
1443 const wxPalette *WXUNUSED(palette) = NULL)
1446 virtual bool Create(wxBitmap *bitmap, const void* data, long flags,
1447 int width, int height, int depth = 1);
1450 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
1452 bool wxXPMDataHandler::Create(wxBitmap *bitmap, const void* bits,
1453 long WXUNUSED(flags),
1454 int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth))
1457 wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") );
1459 if (!bitmap->GetRefData())
1460 bitmap->SetRefData( new wxBitmapRefData() );
1462 M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1464 Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1466 int xscreen = DefaultScreen( xdisplay );
1467 Window xroot = RootWindow( xdisplay, xscreen );
1469 int bpp = DefaultDepth( xdisplay, xscreen );
1471 XpmAttributes xpmAttr;
1472 xpmAttr.valuemask = XpmReturnInfos; // nothing yet, but get infos back
1477 int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits,
1478 &pixmap, &mask, &xpmAttr );
1480 if (ErrorStatus == XpmSuccess)
1482 M_BMPHANDLERDATA->m_width = xpmAttr.width;
1483 M_BMPHANDLERDATA->m_height = xpmAttr.height;
1485 M_BMPHANDLERDATA->m_bpp = bpp; // mono as well?
1488 unsigned int depthRet;
1490 unsigned int widthRet, heightRet, borderWidthRet;
1491 XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
1492 &widthRet, &heightRet, &borderWidthRet, &depthRet);
1494 wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") );
1497 XpmFreeAttributes(&xpmAttr);
1499 M_BMPHANDLERDATA->m_pixmap = (Pixmap) pixmap;
1503 M_BMPHANDLERDATA->m_mask = new wxMask;
1504 M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1505 M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1515 #else // !wxHAVE_LIB_XPM
1516 wxXPMDecoder decoder;
1517 wxImage image(decoder.ReadData((const char **)bits));
1518 return image.Ok() && bitmap->CreateFromImage(image);
1519 #endif // wxHAVE_LIB_XPM/!wxHAVE_LIB_XPM
1524 // ----------------------------------------------------------------------------
1526 // ----------------------------------------------------------------------------
1528 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
1530 DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
1532 inline wxXBMDataHandler()
1534 SetName( wxT("XBM data") );
1535 SetExtension( wxT("xbm") );
1536 SetType( wxBITMAP_TYPE_XBM_DATA );
1539 virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1540 const wxString& WXUNUSED(name),
1541 long WXUNUSED(flags),
1542 int WXUNUSED(desiredWidth),
1543 int WXUNUSED(desiredHeight))
1546 virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1547 const wxString& WXUNUSED(name),
1549 const wxPalette *WXUNUSED(palette) = NULL)
1552 virtual bool Create(wxBitmap *bitmap, const void* data, long flags,
1553 int width, int height, int depth = 1);
1556 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler)
1558 bool wxXBMDataHandler::Create( wxBitmap *bitmap, const void* bits,
1559 long WXUNUSED(flags),
1560 int width, int height, int WXUNUSED(depth))
1563 if (!bitmap->GetRefData())
1564 bitmap->SetRefData( new wxBitmapRefData() );
1566 M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1568 Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1570 int xscreen = DefaultScreen( xdisplay );
1571 Window xroot = RootWindow( xdisplay, xscreen );
1573 M_BMPHANDLERDATA->m_mask = (wxMask *) NULL;
1574 M_BMPHANDLERDATA->m_bitmap =
1575 XCreateBitmapFromData(xdisplay, xroot,
1576 (char *) bits, width, height );
1577 M_BMPHANDLERDATA->m_width = width;
1578 M_BMPHANDLERDATA->m_height = height;
1579 M_BMPHANDLERDATA->m_bpp = 1;
1583 wxCHECK_MSG( M_BMPHANDLERDATA->m_bitmap, false,
1584 wxT("couldn't create bitmap") );
1588 void wxBitmap::InitStandardHandlers()
1590 AddHandler(new wxXBMDataHandler);
1592 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1593 AddHandler(new wxXPMFileHandler);
1595 AddHandler(new wxXPMDataHandler);