mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-11-15 22:09:19 -07:00
95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
// Copyright 2018 Dolphin Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
#include "DolphinQt/QtUtils/WinIconHelper.h"
|
|
|
|
#ifdef _WIN32
|
|
|
|
#include <Windows.h>
|
|
|
|
// The following code is adapted from qpixmap_win.cpp (c) The Qt Company Ltd. (https://qt.io)
|
|
// Licensed under the GNU GPL v3
|
|
static inline BITMAPINFO GetBMI(int width, int height, bool topToBottom)
|
|
{
|
|
BITMAPINFO bmi = {};
|
|
auto& bih = bmi.bmiHeader;
|
|
|
|
bih.biSize = sizeof(BITMAPINFOHEADER);
|
|
bih.biWidth = width;
|
|
bih.biHeight = topToBottom ? -height : height;
|
|
bih.biPlanes = 1;
|
|
bih.biBitCount = 32;
|
|
bih.biCompression = BI_RGB;
|
|
bih.biSizeImage = width * height * 4;
|
|
|
|
return bmi;
|
|
}
|
|
|
|
static QPixmap PixmapFromHICON(HICON icon)
|
|
{
|
|
HDC screenDevice = GetDC(0);
|
|
HDC hdc = CreateCompatibleDC(screenDevice);
|
|
ReleaseDC(0, screenDevice);
|
|
ICONINFO iconinfo;
|
|
const bool result = GetIconInfo(icon, &iconinfo); // x and y Hotspot describes the icon center
|
|
if (!result)
|
|
{
|
|
qErrnoWarning("QPixmap::fromWinHICON(), failed to GetIconInfo()");
|
|
DeleteDC(hdc);
|
|
return QPixmap();
|
|
}
|
|
const int w = iconinfo.xHotspot * 2;
|
|
const int h = iconinfo.yHotspot * 2;
|
|
BITMAPINFO bitmapInfo = GetBMI(w, h, false);
|
|
DWORD* bits;
|
|
HBITMAP winBitmap = CreateDIBSection(hdc, &bitmapInfo, DIB_RGB_COLORS, (VOID**)&bits, NULL, 0);
|
|
HGDIOBJ oldhdc = reinterpret_cast<HBITMAP>(SelectObject(hdc, winBitmap));
|
|
DrawIconEx(hdc, 0, 0, icon, iconinfo.xHotspot * 2, iconinfo.yHotspot * 2, 0, 0, DI_NORMAL);
|
|
|
|
QImage image(w, h, QImage::Format_ARGB32_Premultiplied);
|
|
if (image.isNull())
|
|
return {};
|
|
|
|
BITMAPINFO bmi = GetBMI(w, h, true);
|
|
|
|
QScopedArrayPointer<uchar> data(new uchar[bmi.bmiHeader.biSizeImage]);
|
|
if (!GetDIBits(hdc, winBitmap, 0, h, data.data(), &bmi, DIB_RGB_COLORS))
|
|
return {};
|
|
|
|
for (int y = 0; y < image.height(); ++y)
|
|
{
|
|
void* dest = static_cast<void*>(image.scanLine(y));
|
|
const void* src = data.data() + y * image.bytesPerLine();
|
|
memcpy(dest, src, image.bytesPerLine());
|
|
}
|
|
|
|
// dispose resources created by iconinfo call
|
|
DeleteObject(iconinfo.hbmMask);
|
|
DeleteObject(iconinfo.hbmColor);
|
|
SelectObject(hdc, oldhdc); // restore state
|
|
DeleteObject(winBitmap);
|
|
DeleteDC(hdc);
|
|
return QPixmap::fromImage(image);
|
|
}
|
|
|
|
QIcon WinIconHelper::GetNativeIcon()
|
|
{
|
|
QIcon icon;
|
|
for (int size : {16, 32, 48, 256})
|
|
{
|
|
HANDLE h = LoadImageW(GetModuleHandleW(nullptr), L"\"DOLPHIN\"", IMAGE_ICON, size, size,
|
|
LR_CREATEDIBSECTION);
|
|
|
|
if (h && h != INVALID_HANDLE_VALUE)
|
|
{
|
|
auto* icon_handle = static_cast<HICON>(h);
|
|
icon.addPixmap(PixmapFromHICON(icon_handle));
|
|
}
|
|
}
|
|
|
|
return icon;
|
|
}
|
|
|
|
#endif
|