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Added transparency to GenerateBadgeIcon()
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5ca07929a8
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@ -1646,11 +1646,15 @@ void _glfwSetWindowTaskbarProgressWin32(_GLFWwindow* window, int progressState,
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static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
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{
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HDC hdc = NULL, hdcMem = NULL;
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//Credits to GyrosGeier for helping with transparency
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HDC hdc = NULL, hdcMem = NULL, hdcMemMask = NULL;
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HBITMAP hBitmap = NULL, hBitmapMask = NULL;
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ICONINFO iconInfo;
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HICON hIcon = NULL;
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HFONT hFont = NULL;
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void* bits = NULL;
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DWORD* pixels = NULL;
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int width = 16, height = 16;
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int fontSize = 16, weight = FW_REGULAR;
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RECT contentRect = { 0, 0, width, height };
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@ -1658,18 +1662,36 @@ static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
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if (!text)
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return NULL;
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BITMAPINFO bmi =
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{
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.bmiHeader =
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{
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.biSize = sizeof(BITMAPINFOHEADER),
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.biWidth = width,
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.biHeight = height,
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.biPlanes = 1,
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.biBitCount = 32,
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.biCompression = BI_RGB
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}
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};
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hdc = GetDC(hWnd);
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hdcMem = CreateCompatibleDC(hdc);
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hBitmap = CreateCompatibleBitmap(hdc, width, height);
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hdcMemMask = CreateCompatibleDC(hdc);
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hBitmap = CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, &bits, NULL, 0);
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pixels = (DWORD*)bits;
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hBitmapMask = CreateCompatibleBitmap(hdc, width, height);
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ReleaseDC(hWnd, hdc);
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SelectObject(hdcMem, hBitmap);
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SelectObject(hdcMemMask, hBitmapMask);
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BitBlt(hdcMemMask, 0, 0, width, height, hdcMem, 0, 0, SRCCOPY);
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SelectObject(hdcMem, CreateSolidBrush(RGB(0x26, 0x25, 0x2D)));
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Ellipse(hdcMem, 0, 0, width + 1, height + 1); //17x17 gives a more fancy ellipse
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//TODO Transparency (cull outside of circle)
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//Adjust font size depending on digits to display
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if (lstrlen(text) > 2)
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{
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@ -1692,6 +1714,19 @@ static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
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DrawText(hdcMem, text, lstrlen(text), &contentRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
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//Transparency
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for (int y = 0; y < height; ++y)
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{
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for (int x = 0; x < width; ++x)
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{
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DWORD pixel = pixels[y * width + x];
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if (pixel == 0x0026252Du || pixel == 0x00FFFFFFu) //Pixel is text or ellipsis
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pixels[y * width + x] |= 0xFF000000u; //Set opaque
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else
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pixels[y * width + x] &= 0xFF000000u; //Set fully transparent
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}
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}
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//Generate icon from bitmap
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iconInfo.fIcon = TRUE;
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iconInfo.xHotspot = 0;
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@ -1701,6 +1736,7 @@ static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
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hIcon = CreateIconIndirect(&iconInfo);
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//Cleanup
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DeleteDC(hdcMemMask);
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DeleteDC(hdcMem);
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DeleteObject(hBitmap);
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DeleteObject(hBitmapMask);
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