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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| #pragma once | ||
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| void DrawSvgTohDC(std::string_view svg, HDC hdc, LONG width, LONG height, const D2D1_COLOR_F& color) | ||
| { | ||
| winrt::com_ptr<ID2D1Factory> factory; | ||
| winrt::check_hresult(D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, factory.put())); | ||
|
|
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| D2D1_RENDER_TARGET_PROPERTIES props = { | ||
| .type = D2D1_RENDER_TARGET_TYPE_DEFAULT, | ||
| .pixelFormat = { | ||
| .format = DXGI_FORMAT_B8G8R8A8_UNORM, | ||
| .alphaMode = D2D1_ALPHA_MODE_PREMULTIPLIED | ||
| }, | ||
| .dpiX = 0, .dpiY = 0, | ||
| .usage = D2D1_RENDER_TARGET_USAGE_NONE, | ||
| .minLevel = D2D1_FEATURE_LEVEL_DEFAULT | ||
| }; | ||
| winrt::com_ptr<ID2D1DCRenderTarget> gdiDCRT; | ||
| winrt::check_hresult(factory->CreateDCRenderTarget(&props, gdiDCRT.put())); | ||
|
|
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| RECT rect = { 0, 0, width, height }; | ||
| winrt::check_hresult(gdiDCRT->BindDC(hdc, &rect)); | ||
|
|
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| auto istream = SHCreateMemStream(reinterpret_cast<const BYTE*>(svg.data()), static_cast<UINT>(svg.size())); | ||
| THROW_IF_NULL_ALLOC(istream); | ||
| winrt::com_ptr<IStream> stream(istream, winrt::take_ownership_from_abi); | ||
|
|
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| auto dc = gdiDCRT.as<ID2D1DeviceContext5>(); | ||
| dc->SetAntialiasMode(D2D1_ANTIALIAS_MODE_ALIASED); | ||
|
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| winrt::com_ptr<ID2D1SvgDocument> svgDoc; | ||
| winrt::check_hresult(dc->CreateSvgDocument(stream.get(), { static_cast<FLOAT>(width), static_cast<FLOAT>(height) }, svgDoc.put())); | ||
|
|
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| winrt::com_ptr<ID2D1SvgElement> svgRoot; | ||
| svgDoc->GetRoot(svgRoot.put()); | ||
| svgRoot->SetAttributeValue(L"fill", color); | ||
|
|
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| dc->BeginDraw(); | ||
| dc->DrawSvgDocument(svgDoc.get()); | ||
| dc->EndDraw(); | ||
| } | ||
|
|
||
| auto CreateDIB(HDC hdc, LONG width, LONG height, WORD bitCount) | ||
| { | ||
| BITMAPINFO bmi = { .bmiHeader = { | ||
| .biSize = sizeof(BITMAPINFOHEADER), | ||
| .biWidth = width, | ||
| .biHeight = height, | ||
| .biPlanes = 1, | ||
| .biBitCount = bitCount, | ||
| .biCompression = BI_RGB, | ||
| } }; | ||
| return wil::unique_hbitmap(CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, nullptr, nullptr, 0)); | ||
| } | ||
|
|
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| HICON SvgTohIcon(std::string_view svg, LONG width, LONG height, const D2D1_COLOR_F& color) | ||
| { | ||
| wil::unique_hdc hdc(CreateCompatibleDC(nullptr)); | ||
| THROW_IF_NULL_ALLOC(hdc); | ||
|
|
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| auto hBitmap = CreateDIB(hdc.get(), width, height, 32); | ||
| THROW_IF_NULL_ALLOC(hBitmap); | ||
| auto hBitmapMask = CreateDIB(hdc.get(), width, height, 1); | ||
| THROW_IF_NULL_ALLOC(hBitmapMask); | ||
|
|
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| auto select = wil::SelectObject(hdc.get(), hBitmap.get()); | ||
| DrawSvgTohDC(svg, hdc.get(), width, height, color); | ||
|
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| ICONINFO iconInfo = { | ||
| .fIcon = TRUE, | ||
| .hbmMask = hBitmapMask.get(), | ||
| .hbmColor = hBitmap.get() | ||
| }; | ||
| HICON hIcon = CreateIconIndirect(&iconInfo); | ||
| THROW_LAST_ERROR_IF_NULL(hIcon); | ||
|
|
||
| return hIcon; | ||
| } |
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