+#if wxUSE_IMAGE
+wxCursor::wxCursor(const wxImage & image)
+{
+ unsigned char * rgbBits = image.GetData();
+ int w = image.GetWidth() ;
+ int h = image.GetHeight();
+ bool bHasMask = image.HasMask();
+ int imagebitcount = (w*h)/8;
+
+ unsigned char * bits = new unsigned char [imagebitcount];
+ unsigned char * maskBits = new unsigned char [imagebitcount];
+
+ int i, j, i8; unsigned char c, cMask;
+ for (i=0; i<imagebitcount; i++)
+ {
+ bits[i] = 0;
+ i8 = i * 8;
+
+ cMask = 1;
+ for (j=0; j<8; j++)
+ {
+ // possible overflow if we do the summation first ?
+ c = rgbBits[(i8+j)*3]/3 + rgbBits[(i8+j)*3+1]/3 + rgbBits[(i8+j)*3+2]/3;
+ //if average value is > mid grey
+ if (c>127)
+ bits[i] = bits[i] | cMask;
+ cMask = cMask * 2;
+ }
+ }
+
+ if (bHasMask)
+ {
+ unsigned char
+ r = image.GetMaskRed(),
+ g = image.GetMaskGreen(),
+ b = image.GetMaskBlue();
+
+ for (i=0; i<imagebitcount; i++)
+ {
+ maskBits[i] = 0x0;
+ i8 = i * 8;
+
+ cMask = 1;
+ for (j=0; j<8; j++)
+ {
+ if (rgbBits[(i8+j)*3] != r || rgbBits[(i8+j)*3+1] != g || rgbBits[(i8+j)*3+2] != b)
+ maskBits[i] = maskBits[i] | cMask;
+ cMask = cMask * 2;
+ }
+ }
+ }
+ else // no mask
+ {
+ for (i=0; i<imagebitcount; i++)
+ maskBits[i] = 0xFF;
+ }
+
+ int hotSpotX;
+ int hotSpotY;
+
+ if (image.HasOption(wxCUR_HOTSPOT_X))
+ hotSpotX = image.GetOptionInt(wxCUR_HOTSPOT_X);
+ else
+ hotSpotX = 0;
+
+ if (image.HasOption(wxCUR_HOTSPOT_Y))
+ hotSpotY = image.GetOptionInt(wxCUR_HOTSPOT_Y);
+ else
+ hotSpotY = 0;
+
+ if (hotSpotX < 0 || hotSpotX >= w)
+ hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY >= h)
+ hotSpotY = 0;
+
+ m_refData = new wxCursorRefData;
+
+ Display *dpy = (Display*) wxGetDisplay();
+ int screen_num = DefaultScreen (dpy);
+
+ Pixmap pixmap = XCreatePixmapFromBitmapData (dpy,
+ RootWindow (dpy, DefaultScreen(dpy)),
+ (char*) bits, w, h,
+ 1 , 0 , 1);
+
+ Pixmap mask_pixmap = None;
+ if (maskBits != NULL)
+ {
+ mask_pixmap = XCreatePixmapFromBitmapData (dpy,
+ RootWindow (dpy, DefaultScreen(dpy)),
+ (char*) maskBits, w, h,
+ 1 , 0 , 1);
+ }
+
+ XColor foreground_color;
+ XColor background_color;
+ foreground_color.pixel = BlackPixel(dpy, screen_num);
+ background_color.pixel = WhitePixel(dpy, screen_num);
+ Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
+ XQueryColor(dpy, cmap, &foreground_color);
+ XQueryColor(dpy, cmap, &background_color);
+
+ Cursor cursor = XCreatePixmapCursor (dpy,
+ pixmap,
+ mask_pixmap,
+ &foreground_color,
+ &background_color,
+ hotSpotX ,
+ hotSpotY);
+
+ XFreePixmap( dpy, pixmap );
+ if (mask_pixmap != None)
+ {
+ XFreePixmap( dpy, mask_pixmap );
+ }
+
+ if (cursor)
+ {
+ wxXCursor *c = new wxXCursor;
+
+ c->m_cursor = (WXCursor) cursor;
+ c->m_display = (WXDisplay*) dpy;
+ M_CURSORDATA->m_cursors.Append(c);
+ }
+}
+#endif
+
projects / wxWidgets.git / blobdiff