#pragma implementation "bitmap.h"
#endif
+#ifdef __VMS
+#define XtParent XTPARENT
+#endif
+
#include "wx/setup.h"
#include "wx/utils.h"
#include "wx/palette.h"
#include "wx/control.h"
#include "wx/dcmemory.h"
#include "wx/image.h"
+#include "wx/app.h"
#ifdef __VMS__
#pragma message disable nosimpint
#if wxHAVE_LIB_XPM
#include <X11/xpm.h>
#endif
+#include <math.h>
-#if !USE_SHARED_LIBRARIES
- IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
- IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
-#endif
+
+IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
+IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
wxBitmapRefData::wxBitmapRefData()
{
wxList wxBitmap::sm_handlers;
+#define M_BMPDATA ((wxBitmapRefData *)m_refData)
+
wxBitmap::wxBitmap()
{
m_refData = NULL;
-
- if ( wxTheBitmapList )
- wxTheBitmapList->AddBitmap(this);
}
wxBitmap::~wxBitmap()
{
- if (wxTheBitmapList)
- wxTheBitmapList->DeleteObject(this);
}
wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
m_refData = new wxBitmapRefData;
(void) Create((void*) bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
-
- if ( wxTheBitmapList )
- wxTheBitmapList->AddBitmap(this);
}
wxBitmap::wxBitmap(int w, int h, int d)
{
(void)Create(w, h, d);
-
- if ( wxTheBitmapList )
- wxTheBitmapList->AddBitmap(this);
}
wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
{
(void) Create(data, type, width, height, depth);
-
- if ( wxTheBitmapList )
- wxTheBitmapList->AddBitmap(this);
}
wxBitmap::wxBitmap(const wxString& filename, long type)
{
LoadFile(filename, (int)type);
-
- if ( wxTheBitmapList )
- wxTheBitmapList->AddBitmap(this);
}
// Create from XPM data
sg_Control = (wxControl*) NULL;
}
+bool wxBitmap::CreateFromXpm(const char **bits)
+{
+ wxCHECK_MSG( bits, FALSE, _T("NULL pointer in wxBitmap::CreateFromXpm") );
+
+ return Create(bits, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
+}
+
bool wxBitmap::Create(int w, int h, int d)
{
UnRef();
M_BITMAPDATA->m_bitmapMask = mask ;
}
+wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
+{
+ wxCHECK_MSG( Ok() &&
+ (rect.x >= 0) && (rect.y >= 0) &&
+ (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
+ wxNullBitmap, wxT("invalid bitmap or bitmap region") );
+
+ wxBitmap ret( rect.width, rect.height, 0 );
+ wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
+
+ // The remaining still TODO
+ return ret;
+}
+
void wxBitmap::AddHandler(wxBitmapHandler *handler)
{
sm_handlers.Append(handler);
this is a catch22!!
- So, before doing thing really clean, I just do nothing; if the pixmap is
- referenced by many widgets, Motif performs caching functions.
- And if pixmap is referenced with multiples colors, we just have some
- memory leaks... I hope we can deal with them...
+ So, before doing thing really clean, I just do nothing; if the pixmap is
+ referenced by many widgets, Motif performs caching functions.
+ And if pixmap is referenced with multiples colors, we just have some
+ memory leaks... I hope we can deal with them...
*/
// Must be destroyed, because colours can have been changed!
if (M_BITMAPDATA->m_labelPixmap)
Display *dpy = (Display*) M_BITMAPDATA->m_display;
#ifdef FOO
- See GetLabelPixmap () comment
- // Must be destroyed, because colours can have been changed!
- if (M_BITMAPDATA->m_armPixmap)
- XmDestroyPixmap (DefaultScreenOfDisplay (dpy), M_BITMAPDATA->m_armPixmap);
+ // See GetLabelPixmap () comment
+
+ // Must be destroyed, because colours can have been changed!
+ if (M_BITMAPDATA->m_armPixmap)
+ XmDestroyPixmap (DefaultScreenOfDisplay (dpy), M_BITMAPDATA->m_armPixmap);
#endif
- char tmp[128];
- sprintf (tmp, "Im%x", (unsigned int) M_BITMAPDATA->m_image);
+ char tmp[128];
+ sprintf (tmp, "Im%x", (unsigned int) M_BITMAPDATA->m_image);
- Pixel fg, bg;
- Widget widget = (Widget) w;
+ Pixel fg, bg;
+ Widget widget = (Widget) w;
- XtVaGetValues (widget, XmNarmColor, &bg, NULL);
- while (XmIsGadget (widget))
- widget = XtParent (widget);
- XtVaGetValues (widget, XmNforeground, &fg, NULL);
+ XtVaGetValues (widget, XmNarmColor, &bg, NULL);
+ while (XmIsGadget (widget))
+ widget = XtParent (widget);
+ XtVaGetValues (widget, XmNforeground, &fg, NULL);
- M_BITMAPDATA->m_armPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
+ M_BITMAPDATA->m_armPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
- return M_BITMAPDATA->m_armPixmap;
+ return M_BITMAPDATA->m_armPixmap;
}
WXPixmap wxBitmap::GetInsensPixmap (WXWidget w)
XmDestroyPixmap (DefaultScreenOfDisplay (dpy), (Pixmap) M_BITMAPDATA->m_insensPixmap);
#endif
- char tmp[128];
- sprintf (tmp, "Not%x", (unsigned int) M_BITMAPDATA->m_insensImage);
+ char tmp[128];
+ sprintf (tmp, "Not%x", (unsigned int) M_BITMAPDATA->m_insensImage);
- Pixel fg, bg;
- Widget widget = (Widget) w;
+ Pixel fg, bg;
+ Widget widget = (Widget) w;
- while (XmIsGadget (widget))
- widget = XtParent (widget);
- XtVaGetValues (widget, XmNbackground, &bg, XmNforeground, &fg, NULL);
+ while (XmIsGadget (widget))
+ widget = XtParent (widget);
+ XtVaGetValues (widget, XmNbackground, &bg, XmNforeground, &fg, NULL);
- M_BITMAPDATA->m_insensPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
+ M_BITMAPDATA->m_insensPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
- return M_BITMAPDATA->m_insensPixmap;
+ return M_BITMAPDATA->m_insensPixmap;
}
// We may need this sometime...
NAME
XCreateInsensitivePixmap - create a grayed-out copy of a pixmap
- SYNOPSIS
- Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap )
+ SYNOPSIS
+ Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap )
- DESCRIPTION
- This function creates a grayed-out copy of the argument pixmap, suitable
- for use as a XmLabel's XmNlabelInsensitivePixmap resource.
+ DESCRIPTION
+ This function creates a grayed-out copy of the argument pixmap, suitable
+ for use as a XmLabel's XmNlabelInsensitivePixmap resource.
- RETURN VALUES
- The return value is the new Pixmap id or zero on error. Errors include
- a NULL display argument or an invalid Pixmap argument.
+ RETURN VALUES
+ The return value is the new Pixmap id or zero on error. Errors include
+ a NULL display argument or an invalid Pixmap argument.
- ERRORS
- If one of the XLib functions fail, it will produce a X error. The
- default X error handler prints a diagnostic and calls exit().
+ ERRORS
+ If one of the XLib functions fail, it will produce a X error. The
+ default X error handler prints a diagnostic and calls exit().
- SEE ALSO
- XCopyArea(3), XCreateBitmapFromData(3), XCreateGC(3), XCreatePixmap(3),
- XFillRectangle(3), exit(2)
+ SEE ALSO
+ XCopyArea(3), XCreateBitmapFromData(3), XCreateGC(3), XCreatePixmap(3),
+ XFillRectangle(3), exit(2)
- AUTHOR
- John R Veregge - john@puente.jpl.nasa.gov
- Advanced Engineering and Prototyping Group (AEG)
- Information Systems Technology Section (395)
- Jet Propulsion Lab - Calif Institute of Technology
+ AUTHOR
+ John R Veregge - john@puente.jpl.nasa.gov
+ Advanced Engineering and Prototyping Group (AEG)
+ Information Systems Technology Section (395)
+ Jet Propulsion Lab - Calif Institute of Technology
*****************************************************************************/
XCreateInsensitivePixmap( Display *display, Pixmap pixmap )
{
- static
- char stipple_data[] =
- {
- 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
+ static char stipple_data[] =
+ {
+ 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA
- };
+ };
GC gc;
Pixmap ipixmap, stipple;
unsigned width, height, depth;
return ipixmap;
if ( 0 == XGetGeometry( display, pixmap, &window, &x, &y,
- &width, &height, &border, &depth )
- )
+ &width, &height, &border, &depth )
+ )
return ipixmap; /* BadDrawable: probably an invalid pixmap */
- /* Get the stipple pixmap to be used to 'gray-out' the argument pixmap.
- */
+ /* Get the stipple pixmap to be used to 'gray-out' the argument pixmap.
+ */
stipple = XCreateBitmapFromData( display, pixmap, stipple_data, 16, 16 );
if ( 0 != stipple )
{
gc = XCreateGC( display, pixmap, (XtGCMask)0, (XGCValues*)NULL );
if ( NULL != gc )
{
- /* Create an identical copy of the argument pixmap.
- */
+ /* Create an identical copy of the argument pixmap.
+ */
ipixmap = XCreatePixmap( display, pixmap, width, height, depth );
if ( 0 != ipixmap )
{
- /* Copy the argument pixmap into the new pixmap.
- */
+ /* Copy the argument pixmap into the new pixmap.
+ */
XCopyArea( display, pixmap, ipixmap,
- gc, 0, 0, width, height, 0, 0 );
+ gc, 0, 0, width, height, 0, 0 );
- /* Refill the new pixmap using the stipple algorithm/pixmap.
- */
+ /* Refill the new pixmap using the stipple algorithm/pixmap.
+ */
XSetStipple( display, gc, stipple );
XSetFillStyle( display, gc, FillStippled );
XFillRectangle( display, ipixmap, gc, 0, 0, width, height );
// Creates a bitmap with transparent areas drawn in
// the given colour.
-wxBitmap wxCreateMaskedBitmap(wxBitmap& bitmap, wxColour& colour)
+wxBitmap wxCreateMaskedBitmap(const wxBitmap& bitmap, wxColour& colour)
{
wxBitmap newBitmap(bitmap.GetWidth(),
bitmap.GetHeight(),
return newBitmap;
}
+
+
+
+
+//-----------------------------------------------------------------------------
+// wxImage conversion routines
+//-----------------------------------------------------------------------------
+
+/*
+
+Date: Wed, 05 Jan 2000 11:45:40 +0100
+From: Frits Boel <boel@niob.knaw.nl>
+To: julian.smart@ukonline.co.uk
+Subject: Patch for Motif ConvertToBitmap
+
+Hi Julian,
+
+I've been working on a wxWin application for image processing. From the
+beginning, I was surprised by the (lack of) speed of ConvertToBitmap,
+till I looked in the source code of image.cpp. I saw that converting a
+wxImage to a bitmap with 8-bit pixels is done with comparing every pixel
+to the 256 colors of the palet. A very time-consuming piece of code!
+
+Because I wanted a faster application, I've made a 'patch' for this. In
+short: every pixel of the image is compared to a sorted list with
+colors. If the color is found in the list, the palette entry is
+returned; if the color is not found, the color palette is searched and
+then the palette entry is returned and the color added to the sorted
+list.
+
+Maybe there is another method for this, namely changing the palette
+itself (if the colors are known, as is the case with tiffs with a
+colormap). I did not look at this, maybe someone else did?
+
+The code of the patch is attached, have a look on it, and maybe you will
+ship it with the next release of wxMotif?
+
+Regards,
+
+Frits Boel
+Software engineer at Hubrecht Laboratory, The Netherlands.
+
+*/
+
+class wxSearchColor
+{
+public:
+ wxSearchColor( void );
+ wxSearchColor( int size, XColor *colors );
+ ~wxSearchColor( void );
+
+ int SearchColor( int r, int g, int b );
+private:
+ int AddColor( unsigned int value, int pos );
+
+ int size;
+ XColor *colors;
+ unsigned int *color;
+ int *entry;
+
+ int bottom;
+ int top;
+};
+
+wxSearchColor::wxSearchColor( void )
+{
+ size = 0;
+ colors = (XColor*) NULL;
+ color = (unsigned int *) NULL;
+ entry = (int*) NULL;
+
+ bottom = 0;
+ top = 0;
+}
+
+wxSearchColor::wxSearchColor( int size_, XColor *colors_ )
+{
+ int i;
+ size = size_;
+ colors = colors_;
+ color = new unsigned int[size];
+ entry = new int [size];
+
+ for (i = 0; i < size; i++ ) {
+ entry[i] = -1;
+ }
+
+ bottom = top = ( size >> 1 );
+}
+
+wxSearchColor::~wxSearchColor( void )
+{
+ if ( color ) delete color;
+ if ( entry ) delete entry;
+}
+
+int wxSearchColor::SearchColor( int r, int g, int b )
+{
+ unsigned int value = ( ( ( r * 256 ) + g ) * 256 ) + b;
+ int begin = bottom;
+ int end = top;
+ int middle = 0;
+
+ while ( begin <= end ) {
+
+ middle = ( begin + end ) >> 1;
+
+ if ( value == color[middle] ) {
+ return( entry[middle] );
+ } else if ( value < color[middle] ) {
+ end = middle - 1;
+ } else {
+ begin = middle + 1;
+ }
+
+ }
+
+ return AddColor( value, middle );
+}
+
+int wxSearchColor::AddColor( unsigned int value, int pos )
+{
+ int i;
+ int pixel = -1;
+ int max = 3 * (65536);
+ for ( i = 0; i < 256; i++ ) {
+ int rdiff = ((value >> 8) & 0xFF00 ) - colors[i].red;
+ int gdiff = ((value ) & 0xFF00 ) - colors[i].green;
+ int bdiff = ((value << 8) & 0xFF00 ) - colors[i].blue;
+ int sum = abs (rdiff) + abs (gdiff) + abs (bdiff);
+ if (sum < max) { pixel = i; max = sum; }
+ }
+
+ if ( entry[pos] < 0 ) {
+ color[pos] = value;
+ entry[pos] = pixel;
+ } else if ( value < color[pos] ) {
+
+ if ( bottom > 0 ) {
+ for ( i = bottom; i < pos; i++ ) {
+ color[i-1] = color[i];
+ entry[i-1] = entry[i];
+ }
+ bottom--;
+ color[pos-1] = value;
+ entry[pos-1] = pixel;
+ } else if ( top < size-1 ) {
+ for ( i = top; i >= pos; i-- ) {
+ color[i+1] = color[i];
+ entry[i+1] = entry[i];
+ }
+ top++;
+ color[pos] = value;
+ entry[pos] = pixel;
+ }
+
+ } else {
+
+ if ( top < size-1 ) {
+ for ( i = top; i > pos; i-- ) {
+ color[i+1] = color[i];
+ entry[i+1] = entry[i];
+ }
+ top++;
+ color[pos+1] = value;
+ entry[pos+1] = pixel;
+ } else if ( bottom > 0 ) {
+ for ( i = bottom; i < pos; i++ ) {
+ color[i-1] = color[i];
+ entry[i-1] = entry[i];
+ }
+ bottom--;
+ color[pos] = value;
+ entry[pos] = pixel;
+ }
+
+ }
+
+ return( pixel );
+}
+
+
+bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
+{
+ wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
+ wxCHECK_MSG( depth == -1, FALSE, wxT("invalid bitmap depth") )
+
+ m_refData = new wxBitmapRefData();
+
+ int width = image.GetWidth();
+ int height = image.GetHeight();
+
+ SetHeight( height );
+ SetWidth( width );
+
+ Display *dpy = (Display*) wxGetDisplay();
+ Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) );
+ int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) );
+
+ // Create image
+
+ XImage *data_image = XCreateImage( dpy, vis, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
+ data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
+
+ Create( width, height, bpp );
+
+ // Create mask
+
+ XImage *mask_image = (XImage*) NULL;
+ if (image.HasMask())
+ {
+ mask_image = XCreateImage( dpy, vis, 1, ZPixmap, 0, 0, width, height, 32, 0 );
+ mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
+ }
+
+ // Retrieve depth info
+
+ XVisualInfo vinfo_template;
+ XVisualInfo *vi;
+
+ vinfo_template.visual = vis;
+ vinfo_template.visualid = XVisualIDFromVisual( vis );
+ vinfo_template.depth = bpp;
+ int nitem = 0;
+
+ vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
+
+ wxCHECK_MSG( vi, FALSE, wxT("no visual") );
+
+ XFree( vi );
+
+ if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
+ if (bpp < 8) bpp = 8;
+
+ // Render
+
+ enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
+ byte_order b_o = RGB;
+
+ if (bpp >= 24)
+ {
+ if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask)) b_o = RGB;
+ else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask)) b_o = RGB;
+ else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask)) b_o = BRG;
+ else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR;
+ else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask)) b_o = GRB;
+ else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask)) b_o = GBR;
+ }
+
+ int r_mask = image.GetMaskRed();
+ int g_mask = image.GetMaskGreen();
+ int b_mask = image.GetMaskBlue();
+
+ XColor colors[256];
+ if (bpp == 8)
+ {
+ Colormap cmap = (Colormap) wxTheApp->GetMainColormap( dpy );
+
+ for (int i = 0; i < 256; i++) colors[i].pixel = i;
+ XQueryColors( dpy, cmap, colors, 256 );
+ }
+
+ wxSearchColor scolor( 256, colors );
+ unsigned char* data = image.GetData();
+
+ bool hasMask = image.HasMask();
+
+ int index = 0;
+ for (int y = 0; y < height; y++)
+ {
+ for (int x = 0; x < width; x++)
+ {
+ int r = data[index];
+ index++;
+ int g = data[index];
+ index++;
+ int b = data[index];
+ index++;
+
+ if (hasMask)
+ {
+ if ((r == r_mask) && (b == b_mask) && (g == g_mask))
+ XPutPixel( mask_image, x, y, 0 );
+ else
+ XPutPixel( mask_image, x, y, 1 );
+ }
+
+ switch (bpp)
+ {
+ case 8:
+ {
+#if 0 // Old, slower code
+ int pixel = -1;
+ /*
+ if (wxTheApp->m_colorCube)
+ {
+ pixel = wxTheApp->m_colorCube
+ [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
+ }
+ else
+ {
+ */
+ int max = 3 * (65536);
+ for (int i = 0; i < 256; i++)
+ {
+ int rdiff = (r << 8) - colors[i].red;
+ int gdiff = (g << 8) - colors[i].green;
+ int bdiff = (b << 8) - colors[i].blue;
+ int sum = abs (rdiff) + abs (gdiff) + abs (bdiff);
+ if (sum < max) { pixel = i; max = sum; }
+ }
+ /*
+ }
+ */
+#endif
+
+ // And this is all to get the 'right' color...
+ int pixel = scolor.SearchColor( r, g, b );
+ XPutPixel( data_image, x, y, pixel );
+ break;
+ }
+ case 15:
+ {
+ int pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3);
+ XPutPixel( data_image, x, y, pixel );
+ break;
+ }
+ case 16:
+ {
+ int pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3);
+ XPutPixel( data_image, x, y, pixel );
+ break;
+ }
+ case 32:
+ case 24:
+ {
+ int pixel = 0;
+ switch (b_o)
+ {
+ case RGB: pixel = (r << 16) | (g << 8) | b; break;
+ case RBG: pixel = (r << 16) | (b << 8) | g; break;
+ case BRG: pixel = (b << 16) | (r << 8) | g; break;
+ case BGR: pixel = (b << 16) | (g << 8) | r; break;
+ case GRB: pixel = (g << 16) | (r << 8) | b; break;
+ case GBR: pixel = (g << 16) | (b << 8) | r; break;
+ }
+ XPutPixel( data_image, x, y, pixel );
+ }
+ default: break;
+ }
+ } // for
+ } // for
+
+ // Blit picture
+
+ XGCValues gcvalues;
+ gcvalues.foreground = BlackPixel( dpy, DefaultScreen( dpy ) );
+ GC gc = XCreateGC( dpy, RootWindow ( dpy, DefaultScreen(dpy) ), GCForeground, &gcvalues );
+ XPutImage( dpy, (Drawable)GetPixmap(), gc, data_image, 0, 0, 0, 0, width, height );
+
+ XDestroyImage( data_image );
+ XFreeGC( dpy, gc );
+
+ // Blit mask
+ if (image.HasMask())
+ {
+ wxBitmap maskBitmap(width, height, 1);
+
+ GC gcMask = XCreateGC( dpy, (Pixmap) maskBitmap.GetPixmap(), (XtGCMask) 0, (XGCValues*)NULL );
+ XPutImage( dpy, (Drawable)maskBitmap.GetPixmap(), gcMask, mask_image, 0, 0, 0, 0, width, height );
+
+ XDestroyImage( mask_image );
+ XFreeGC( dpy, gcMask );
+
+ wxMask* mask = new wxMask;
+ mask->SetPixmap(maskBitmap.GetPixmap());
+
+ SetMask(mask);
+
+ maskBitmap.SetPixmapNull();
+ }
+
+
+ return TRUE;
+}
+
+wxImage wxBitmap::ConvertToImage() const
+{
+ wxImage image;
+
+ wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
+
+ Display *dpy = (Display*) wxGetDisplay();
+ Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) );
+ int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) );
+
+ XImage *ximage = XGetImage( dpy,
+ (Drawable)GetPixmap(),
+ 0, 0,
+ GetWidth(), GetHeight(),
+ AllPlanes, ZPixmap );
+
+ wxCHECK_MSG( ximage, wxNullImage, wxT("couldn't create image") );
+
+ image.Create( GetWidth(), GetHeight() );
+ char unsigned *data = image.GetData();
+
+ if (!data)
+ {
+ XDestroyImage( ximage );
+ wxFAIL_MSG( wxT("couldn't create image") );
+ return wxNullImage;
+ }
+
+ /*
+ GdkImage *gdk_image_mask = (GdkImage*) NULL;
+ if (GetMask())
+ {
+ gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(),
+ 0, 0,
+ GetWidth(), GetHeight() );
+
+ image.SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable
+ }
+ */
+
+ // Retrieve depth info
+
+ XVisualInfo vinfo_template;
+ XVisualInfo *vi;
+
+ vinfo_template.visual = vis;
+ vinfo_template.visualid = XVisualIDFromVisual( vis );
+ vinfo_template.depth = bpp;
+ int nitem = 0;
+
+ vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
+
+ wxCHECK_MSG( vi, wxNullImage, wxT("no visual") );
+
+ if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
+
+ XFree( vi );
+
+ XColor colors[256];
+ if (bpp == 8)
+ {
+ Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy );
+
+ for (int i = 0; i < 256; i++) colors[i].pixel = i;
+ XQueryColors( dpy, cmap, colors, 256 );
+ }
+
+ long pos = 0;
+ for (int j = 0; j < GetHeight(); j++)
+ {
+ for (int i = 0; i < GetWidth(); i++)
+ {
+ int pixel = XGetPixel( ximage, i, j );
+ if (bpp <= 8)
+ {
+ data[pos] = colors[pixel].red >> 8;
+ data[pos+1] = colors[pixel].green >> 8;
+ data[pos+2] = colors[pixel].blue >> 8;
+ } else if (bpp == 15)
+ {
+ data[pos] = (pixel >> 7) & 0xf8;
+ data[pos+1] = (pixel >> 2) & 0xf8;
+ data[pos+2] = (pixel << 3) & 0xf8;
+ } else if (bpp == 16)
+ {
+ data[pos] = (pixel >> 8) & 0xf8;
+ data[pos+1] = (pixel >> 3) & 0xfc;
+ data[pos+2] = (pixel << 3) & 0xf8;
+ } else
+ {
+ data[pos] = (pixel >> 16) & 0xff;
+ data[pos+1] = (pixel >> 8) & 0xff;
+ data[pos+2] = pixel & 0xff;
+ }
+
+ /*
+ if (gdk_image_mask)
+ {
+ int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
+ if (mask_pixel == 0)
+ {
+ data[pos] = 16;
+ data[pos+1] = 16;
+ data[pos+2] = 16;
+ }
+ }
+ */
+
+ pos += 3;
+ }
+ }
+
+ XDestroyImage( ximage );
+ /*
+ if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
+ */
+
+ return image;
+}
projects / wxWidgets.git / blobdiff