image update
listbox fix iODBC fixes git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1378 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@@ -161,17 +161,23 @@ wxApp::wxApp()
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m_idleTag = 0;
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m_topWindow = (wxWindow *) NULL;
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m_exitOnFrameDelete = TRUE;
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m_colorCube = (unsigned char*) NULL;
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wxTheApp = this;
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}
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wxApp::~wxApp(void)
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{
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gtk_idle_remove( m_idleTag );
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if (m_colorCube) free(m_colorCube);
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}
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bool wxApp::InitVisual()
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{
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return TRUE;
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/* Nothing to do for 15, 16, 24, 32 bit displays */
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GdkVisual *visual = gdk_visual_get_system();
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if (visual->depth > 8) return TRUE;
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/* this initiates the standard palette as defined by GdkImlib
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in the GNOME libraries. it ensures that all GNOME applications
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@@ -179,6 +185,7 @@ bool wxApp::InitVisual()
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can use several rather graphics-heavy applications at the
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same time */
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/*
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GdkColormap *cmap = gdk_colormap_new( gdk_visual_get_system(), TRUE );
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for (int i = 0; i < 64; i++)
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@@ -193,6 +200,41 @@ bool wxApp::InitVisual()
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}
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gtk_widget_set_default_colormap( cmap );
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*/
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/* initialize color cube for 8-bit color reduction dithering */
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GdkColormap *cmap = gtk_widget_get_default_colormap();
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m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
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for (int r = 0; r < 32; r++)
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{
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for (int g = 0; g < 32; g++)
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{
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for (int b = 0; b < 32; b++)
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{
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int rr = (r << 3) | (r >> 2);
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int gg = (g << 3) | (g >> 2);
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int bb = (b << 3) | (b >> 2);
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GdkColor *colors = cmap->colors;
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int max = 3 * (65536);
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int index = -1;
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for (int i = 0; i < cmap->size; i++)
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{
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int rdiff = ((rr << 8) - colors[i].red);
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int gdiff = ((gg << 8)- colors[i].green);
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int bdiff = ((bb << 8)- colors[i].blue);
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int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
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if (sum < max) { index = i; max = sum; }
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}
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m_colorCube[ (r*1024) + (g*32) + b ] = index;
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}
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}
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}
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return TRUE;
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}
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