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Added transparency to GenerateBadgeIcon()

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GamesTrap 2023-03-07 00:15:41 +01:00
parent 5ca07929a8
commit 444d7de752
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GPG Key ID: 31DFD452434ECDA3
1 changed files with 40 additions and 4 deletions
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44
src/win32_window.c
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@ -1646,11 +1646,15 @@ void _glfwSetWindowTaskbarProgressWin32(_GLFWwindow* window, int progressState,
static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text) static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
{ {
HDC hdc = NULL, hdcMem = NULL; //Credits to GyrosGeier for helping with transparency
HDC hdc = NULL, hdcMem = NULL, hdcMemMask = NULL;
HBITMAP hBitmap = NULL, hBitmapMask = NULL; HBITMAP hBitmap = NULL, hBitmapMask = NULL;
ICONINFO iconInfo; ICONINFO iconInfo;
HICON hIcon = NULL; HICON hIcon = NULL;
HFONT hFont = NULL; HFONT hFont = NULL;
void* bits = NULL;
DWORD* pixels = NULL;
int width = 16, height = 16; int width = 16, height = 16;
int fontSize = 16, weight = FW_REGULAR; int fontSize = 16, weight = FW_REGULAR;
RECT contentRect = { 0, 0, width, height }; RECT contentRect = { 0, 0, width, height };
@ -1658,18 +1662,36 @@ static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
if (!text) if (!text)
return NULL; return NULL;
BITMAPINFO bmi =
{
.bmiHeader =
{
.biSize = sizeof(BITMAPINFOHEADER),
.biWidth = width,
.biHeight = height,
.biPlanes = 1,
.biBitCount = 32,
.biCompression = BI_RGB
}
};
hdc = GetDC(hWnd); hdc = GetDC(hWnd);
hdcMem = CreateCompatibleDC(hdc); hdcMem = CreateCompatibleDC(hdc);
hBitmap = CreateCompatibleBitmap(hdc, width, height); hdcMemMask = CreateCompatibleDC(hdc);
hBitmap = CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, &bits, NULL, 0);
pixels = (DWORD*)bits;
hBitmapMask = CreateCompatibleBitmap(hdc, width, height); hBitmapMask = CreateCompatibleBitmap(hdc, width, height);
ReleaseDC(hWnd, hdc); ReleaseDC(hWnd, hdc);
SelectObject(hdcMem, hBitmap); SelectObject(hdcMem, hBitmap);
SelectObject(hdcMemMask, hBitmapMask);
BitBlt(hdcMemMask, 0, 0, width, height, hdcMem, 0, 0, SRCCOPY);
SelectObject(hdcMem, CreateSolidBrush(RGB(0x26, 0x25, 0x2D))); SelectObject(hdcMem, CreateSolidBrush(RGB(0x26, 0x25, 0x2D)));
Ellipse(hdcMem, 0, 0, width + 1, height + 1); //17x17 gives a more fancy ellipse Ellipse(hdcMem, 0, 0, width + 1, height + 1); //17x17 gives a more fancy ellipse
//TODO Transparency (cull outside of circle)
//Adjust font size depending on digits to display //Adjust font size depending on digits to display
if (lstrlen(text) > 2) if (lstrlen(text) > 2)
{ {
@ -1692,6 +1714,19 @@ static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
DrawText(hdcMem, text, lstrlen(text), &contentRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE); DrawText(hdcMem, text, lstrlen(text), &contentRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
//Transparency
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
DWORD pixel = pixels[y * width + x];
if (pixel == 0x0026252Du || pixel == 0x00FFFFFFu) //Pixel is text or ellipsis
pixels[y * width + x] |= 0xFF000000u; //Set opaque
else
pixels[y * width + x] &= 0xFF000000u; //Set fully transparent
}
}
//Generate icon from bitmap //Generate icon from bitmap
iconInfo.fIcon = TRUE; iconInfo.fIcon = TRUE;
iconInfo.xHotspot = 0; iconInfo.xHotspot = 0;
@ -1701,6 +1736,7 @@ static HICON GenerateBadgeIcon(HWND hWnd, WCHAR* text)
hIcon = CreateIconIndirect(&iconInfo); hIcon = CreateIconIndirect(&iconInfo);
//Cleanup //Cleanup
DeleteDC(hdcMemMask);
DeleteDC(hdcMem); DeleteDC(hdcMem);
DeleteObject(hBitmap); DeleteObject(hBitmap);
DeleteObject(hBitmapMask); DeleteObject(hBitmapMask);