166 lines
7.1 KiB
C++
166 lines
7.1 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- GdiRenderer.hpp
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Abstract:
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- This is the definition of the GDI specific implementation of the renderer.
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Author(s):
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- Michael Niksa (MiNiksa) 17-Nov-2015
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--*/
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#pragma once
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#include "..\inc\RenderEngineBase.hpp"
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namespace Microsoft::Console::Render
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{
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class GdiEngine final : public RenderEngineBase
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{
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public:
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GdiEngine();
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~GdiEngine() override;
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[[nodiscard]] HRESULT SetHwnd(const HWND hwnd) noexcept;
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[[nodiscard]] HRESULT InvalidateSelection(const std::vector<SMALL_RECT>& rectangles) noexcept override;
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[[nodiscard]] HRESULT InvalidateScroll(const COORD* const pcoordDelta) noexcept override;
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[[nodiscard]] HRESULT InvalidateSystem(const RECT* const prcDirtyClient) noexcept override;
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[[nodiscard]] HRESULT Invalidate(const SMALL_RECT* const psrRegion) noexcept override;
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[[nodiscard]] HRESULT InvalidateCursor(const COORD* const pcoordCursor) noexcept override;
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[[nodiscard]] HRESULT InvalidateAll() noexcept override;
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[[nodiscard]] HRESULT InvalidateCircling(_Out_ bool* const pForcePaint) noexcept override;
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[[nodiscard]] HRESULT PrepareForTeardown(_Out_ bool* const pForcePaint) noexcept override;
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[[nodiscard]] HRESULT StartPaint() noexcept override;
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[[nodiscard]] HRESULT EndPaint() noexcept override;
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[[nodiscard]] HRESULT Present() noexcept override;
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[[nodiscard]] HRESULT ScrollFrame() noexcept override;
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[[nodiscard]] HRESULT PaintBackground() noexcept override;
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[[nodiscard]] HRESULT PaintBufferLine(std::basic_string_view<Cluster> const clusters,
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const COORD coord,
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const bool trimLeft) noexcept override;
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[[nodiscard]] HRESULT PaintBufferGridLines(const GridLines lines,
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const COLORREF color,
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const size_t cchLine,
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const COORD coordTarget) noexcept override;
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[[nodiscard]] HRESULT PaintSelection(const SMALL_RECT rect) noexcept override;
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[[nodiscard]] HRESULT PaintCursor(const CursorOptions& options) noexcept override;
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[[nodiscard]] HRESULT UpdateDrawingBrushes(const COLORREF colorForeground,
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const COLORREF colorBackground,
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const WORD legacyColorAttribute,
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const ExtendedAttributes extendedAttrs,
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const bool isSettingDefaultBrushes) noexcept override;
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[[nodiscard]] HRESULT UpdateFont(const FontInfoDesired& FontInfoDesired,
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_Out_ FontInfo& FontInfo) noexcept override;
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[[nodiscard]] HRESULT UpdateDpi(const int iDpi) noexcept override;
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[[nodiscard]] HRESULT UpdateViewport(const SMALL_RECT srNewViewport) noexcept override;
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[[nodiscard]] HRESULT GetProposedFont(const FontInfoDesired& FontDesired,
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_Out_ FontInfo& Font,
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const int iDpi) noexcept override;
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SMALL_RECT GetDirtyRectInChars() override;
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[[nodiscard]] HRESULT GetFontSize(_Out_ COORD* const pFontSize) noexcept override;
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[[nodiscard]] HRESULT IsGlyphWideByFont(const std::wstring_view glyph, _Out_ bool* const pResult) noexcept override;
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protected:
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[[nodiscard]] HRESULT _DoUpdateTitle(_In_ const std::wstring& newTitle) noexcept override;
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private:
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HWND _hwndTargetWindow;
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[[nodiscard]] static HRESULT s_SetWindowLongWHelper(const HWND hWnd,
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const int nIndex,
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const LONG dwNewLong) noexcept;
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bool _fPaintStarted;
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PAINTSTRUCT _psInvalidData;
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HDC _hdcMemoryContext;
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bool _isTrueTypeFont;
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UINT _fontCodepage;
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HFONT _hfont;
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TEXTMETRICW _tmFontMetrics;
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static const size_t s_cPolyTextCache = 80;
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POLYTEXTW _pPolyText[s_cPolyTextCache];
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size_t _cPolyText;
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[[nodiscard]] HRESULT _FlushBufferLines() noexcept;
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std::vector<RECT> cursorInvertRects;
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COORD _coordFontLast;
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int _iCurrentDpi;
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static const int s_iBaseDpi = USER_DEFAULT_SCREEN_DPI;
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SIZE _szMemorySurface;
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HBITMAP _hbitmapMemorySurface;
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[[nodiscard]] HRESULT _PrepareMemoryBitmap(const HWND hwnd) noexcept;
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SIZE _szInvalidScroll;
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RECT _rcInvalid;
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bool _fInvalidRectUsed;
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COLORREF _lastFg;
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COLORREF _lastBg;
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[[nodiscard]] HRESULT _InvalidCombine(const RECT* const prc) noexcept;
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[[nodiscard]] HRESULT _InvalidOffset(const POINT* const ppt) noexcept;
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[[nodiscard]] HRESULT _InvalidRestrict() noexcept;
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[[nodiscard]] HRESULT _InvalidateRect(const RECT* const prc) noexcept;
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[[nodiscard]] HRESULT _PaintBackgroundColor(const RECT* const prc) noexcept;
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static const ULONG s_ulMinCursorHeightPercent = 25;
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static const ULONG s_ulMaxCursorHeightPercent = 100;
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[[nodiscard]] HRESULT _ScaleByFont(const COORD* const pcoord, _Out_ POINT* const pPoint) const noexcept;
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[[nodiscard]] HRESULT _ScaleByFont(const SMALL_RECT* const psr, _Out_ RECT* const prc) const noexcept;
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[[nodiscard]] HRESULT _ScaleByFont(const RECT* const prc, _Out_ SMALL_RECT* const psr) const noexcept;
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static int s_ScaleByDpi(const int iPx, const int iDpi);
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static int s_ShrinkByDpi(const int iPx, const int iDpi);
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POINT _GetInvalidRectPoint() const;
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SIZE _GetInvalidRectSize() const;
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SIZE _GetRectSize(const RECT* const pRect) const;
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void _OrRect(_In_ RECT* const pRectExisting, const RECT* const pRectToOr) const;
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bool _IsFontTrueType() const;
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[[nodiscard]] HRESULT _GetProposedFont(const FontInfoDesired& FontDesired,
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_Out_ FontInfo& Font,
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const int iDpi,
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_Inout_ wil::unique_hfont& hFont) noexcept;
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COORD _GetFontSize() const;
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bool _IsMinimized() const;
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bool _IsWindowValid() const;
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#ifdef DBG
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// Helper functions to diagnose issues with painting from the in-memory buffer.
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// These are only actually effective/on in Debug builds when the flag is set using an attached debugger.
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bool _fDebug = false;
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void _PaintDebugRect(const RECT* const prc) const;
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void _DoDebugBlt(const RECT* const prc) const;
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void _DebugBltAll() const;
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HWND _debugWindow;
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void _CreateDebugWindow();
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HDC _debugContext;
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#endif
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};
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}
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