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libreoffice/vcl/inc/win/salgdi.h
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3. 
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <sal/config.h>
#include <sallayout.hxx>
#include <salgeom.hxx>
#include <salgdi.hxx>
#include <font/LogicalFontInstance.hxx>
#include <fontattributes.hxx>
#include <font/PhysicalFontFace.hxx>
#include <impfont.hxx>
#include <vcl/fontcapabilities.hxx>
#include <vcl/fontcharmap.hxx>
#include <systools/win32/comtools.hxx>
#include <memory>
#include <unordered_set>
#ifndef INCLUDED_PRE_POST_WIN_H
#define INCLUDED_PRE_POST_WIN_H
# include <prewin.h>
# include <postwin.h>
#endif
#include <hb-ot.h>
#include <dwrite.h>
namespace vcl::font
{
class PhysicalFontCollection;
class FontSelectPattern;
}
class WinFontInstance;
class ImplFontAttrCache;
class SalGraphicsImpl;
class WinSalGraphicsImplBase;
class FontMetricData;
#define RGB_TO_PALRGB(nRGB) ((nRGB)|0x02000000)
#define PALRGB_TO_RGB(nPalRGB) ((nPalRGB)&0x00ffffff)
// win32 specific physically available font face
class WinFontFace final : public vcl::font::PhysicalFontFace
{
public:
explicit WinFontFace(const ENUMLOGFONTEXW&, const NEWTEXTMETRICW&);
~WinFontFace() override;
rtl::Reference<LogicalFontInstance> CreateFontInstance( const vcl::font::FontSelectPattern& ) const override;
sal_IntPtr GetFontId() const override;
void SetFontId( sal_IntPtr nId ) { mnId = nId; }
BYTE GetCharSet() const { return meWinCharSet; }
BYTE GetPitchAndFamily() const { return mnPitchAndFamily; }
hb_blob_t* GetHbTable(hb_tag_t nTag) const override;
const std::vector<hb_variation_t>& GetVariations(const LogicalFontInstance&) const override;
private:
sal_IntPtr mnId;
BYTE meWinCharSet;
BYTE mnPitchAndFamily;
LOGFONTW maLogFont;
mutable sal::systools::COMReference<IDWriteFontFace> mxDWFontFace;
};
/** Class that creates (and destroys) a compatible Device Context.
This is to be used for GDI drawing into a DIB that we later use for a different
drawing method, such as a texture for OpenGL drawing or surface for Skia drawing.
*/
class CompatibleDC
{
protected:
/// The compatible DC that we create for our purposes.
HDC mhCompatibleDC;
/// DIBSection that we use for the GDI drawing, and later obtain.
HBITMAP mhBitmap;
/// Return the previous bitmap to undo the SelectObject.
HBITMAP mhOrigBitmap;
/// DIBSection data.
sal_uInt32 *mpData;
/// Mapping between the GDI position and OpenGL, to use for OpenGL drawing.
SalTwoRect maRects;
/// The SalGraphicsImpl where we will draw. If null, we ignore the drawing, it means it happened directly to the DC...
WinSalGraphicsImplBase *mpImpl;
// If 'disable' is true, this class is a simple wrapper for drawing directly. Subclasses should use true.
CompatibleDC(SalGraphics &rGraphics, int x, int y, int width, int height, bool disable=true);
public:
static std::unique_ptr< CompatibleDC > create(SalGraphics &rGraphics, int x, int y, int width, int height);
virtual ~CompatibleDC();
HDC getCompatibleHDC() { return mhCompatibleDC; }
SalTwoRect getTwoRect() const { return maRects; }
tools::Long getBitmapWidth() const { return maRects.mnSrcWidth; }
tools::Long getBitmapHeight() const { return maRects.mnSrcHeight; }
/// Reset the DC with the defined color.
void fill(sal_uInt32 color);
};
/**
* WinSalGraphics never owns the HDC it uses to draw, because the HDC can have
* various origins with different ways to correctly free it. And WinSalGraphics
* stores all default values (mhDef*) of the HDC, which must be restored when
* the HDC changes (setHDC) or the SalGraphics is destructed. So think of the
* HDC in terms of Rust's Borrowing semantics.
*/
class WinSalGraphics : public SalGraphics
{
friend class WinSalGraphicsImpl;
friend class ScopedFont;
protected:
std::unique_ptr<SalGraphicsImpl> mpImpl;
WinSalGraphicsImplBase * mWinSalGraphicsImplBase;
private:
HDC mhLocalDC; // HDC
bool mbPrinter : 1; // is Printer
bool mbVirDev : 1; // is VirDev
bool mbWindow : 1; // is Window
bool mbScreen : 1; // is Screen compatible
HWND mhWnd; // Window-Handle, when Window-Graphics
rtl::Reference<WinFontInstance>
mpWinFontEntry[ MAX_FALLBACK ]; // pointer to the most recent font instance
HRGN mhRegion; // vcl::Region Handle
HPEN mhDefPen; // DefaultPen
HBRUSH mhDefBrush; // DefaultBrush
HFONT mhDefFont; // DefaultFont
HPALETTE mhDefPal; // DefaultPalette
COLORREF mnTextColor; // TextColor
RGNDATA* mpClipRgnData; // ClipRegion-Data
RGNDATA* mpStdClipRgnData; // Cache Standard-ClipRegion-Data
int mnPenWidth; // line width
// just call both from setHDC!
void InitGraphics();
void DeInitGraphics();
public:
// Returns base HFONT, an optional HFONT for non-rotated CJK glyphs,
// and tmDescent value for adjusting offset in vertical writing mode.
std::tuple<HFONT, HFONT, sal_Int32>
ImplDoSetFont(HDC hDC, vcl::font::FontSelectPattern const& i_rFont,
const vcl::font::PhysicalFontFace* i_pFontFace, HFONT& o_rOldFont);
HDC getHDC() const { return mhLocalDC; }
// NOTE: this doesn't transfer ownership! See class comment.
void setHDC(HDC aNew);
HPALETTE getDefPal() const;
// returns the result from RealizePalette, otherwise 0 on success or GDI_ERROR
UINT setPalette(HPALETTE, BOOL bForceBkgd = TRUE);
HRGN getRegion() const;
enum Type
{
PRINTER,
VIRTUAL_DEVICE,
WINDOW,
SCREEN
};
static IDWriteFactory* getDWriteFactory();
static IDWriteGdiInterop* getDWriteGdiInterop();
public:
HWND gethWnd();
public:
explicit WinSalGraphics(WinSalGraphics::Type eType, bool bScreen, HWND hWnd,
SalGeometryProvider *pProvider);
virtual ~WinSalGraphics() override;
SalGraphicsImpl* GetImpl() const override;
WinSalGraphicsImplBase * getWinSalGraphicsImplBase() const { return mWinSalGraphicsImplBase; }
bool isPrinter() const;
bool isVirtualDevice() const;
bool isWindow() const;
bool isScreen() const;
void setHWND(HWND hWnd);
void Flush();
protected:
virtual void setClipRegion( const vcl::Region& ) override;
// draw --> LineColor and FillColor and RasterOp and ClipRegion
virtual void drawPixel( tools::Long nX, tools::Long nY ) override;
virtual void drawPixel( tools::Long nX, tools::Long nY, Color nColor ) override;
virtual void drawLine( tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2 ) override;
virtual void drawRect( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
virtual void drawPolyLine( sal_uInt32 nPoints, const Point* pPtAry ) override;
virtual void drawPolygon( sal_uInt32 nPoints, const Point* pPtAry ) override;
virtual void drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, const Point** pPtAry ) override;
virtual void drawPolyPolygon(
const basegfx::B2DHomMatrix& rObjectToDevice,
const basegfx::B2DPolyPolygon&,
double fTransparency) override;
virtual bool drawPolyLine(
const basegfx::B2DHomMatrix& rObjectToDevice,
const basegfx::B2DPolygon&,
double fTransparency,
double fLineWidth,
const std::vector< double >* pStroke, // MM01
basegfx::B2DLineJoin,
css::drawing::LineCap,
double fMiterMinimumAngle,
bool bPixelSnapHairline) override;
virtual bool drawPolyLineBezier( sal_uInt32 nPoints, const Point* pPtAry, const PolyFlags* pFlgAry ) override;
virtual bool drawPolygonBezier( sal_uInt32 nPoints, const Point* pPtAry, const PolyFlags* pFlgAry ) override;
virtual bool drawPolyPolygonBezier( sal_uInt32 nPoly, const sal_uInt32* pPoints, const Point* const* pPtAry, const PolyFlags* const* pFlgAry ) override;
virtual bool drawGradient( const tools::PolyPolygon&, const Gradient& ) override;
virtual bool implDrawGradient(basegfx::B2DPolyPolygon const & rPolyPolygon, SalGradient const & rGradient) override;
// CopyArea --> No RasterOp, but ClipRegion
virtual void copyArea( tools::Long nDestX, tools::Long nDestY, tools::Long nSrcX, tools::Long nSrcY, tools::Long nSrcWidth,
tools::Long nSrcHeight, bool bWindowInvalidate ) override;
// CopyBits and DrawBitmap --> RasterOp and ClipRegion
// CopyBits() --> pSrcGraphics == NULL, then CopyBits on same Graphics
virtual void copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) override;
virtual void drawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap ) override;
virtual void drawBitmap( const SalTwoRect& rPosAry,
const SalBitmap& rSalBitmap,
const SalBitmap& rTransparentBitmap ) override;
virtual void drawMask( const SalTwoRect& rPosAry,
const SalBitmap& rSalBitmap,
Color nMaskColor ) override;
virtual std::shared_ptr<SalBitmap> getBitmap( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
virtual Color getPixel( tools::Long nX, tools::Long nY ) override;
// invert --> ClipRegion (only Windows or VirDevs)
virtual void invert( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, SalInvert nFlags) override;
virtual void invert( sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags ) override;
virtual bool drawEPS( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, void* pPtr, sal_uInt32 nSize ) override;
// native widget rendering methods that require mirroring
protected:
virtual bool isNativeControlSupported( ControlType nType, ControlPart nPart ) override;
virtual bool hitTestNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
const Point& aPos, bool& rIsInside ) override;
virtual bool drawNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
ControlState nState, const ImplControlValue& aValue,
const OUString& aCaption, const Color& rBackgroundColor ) override;
virtual bool getNativeControlRegion( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion, ControlState nState,
const ImplControlValue& aValue, const OUString& aCaption,
tools::Rectangle &rNativeBoundingRegion, tools::Rectangle &rNativeContentRegion ) override;
public:
virtual bool blendBitmap( const SalTwoRect&,
const SalBitmap& rBitmap ) override;
virtual bool blendAlphaBitmap( const SalTwoRect&,
const SalBitmap& rSrcBitmap,
const SalBitmap& rMaskBitmap,
const SalBitmap& rAlphaBitmap ) override;
virtual bool drawAlphaBitmap( const SalTwoRect&,
const SalBitmap& rSourceBitmap,
const SalBitmap& rAlphaBitmap ) override;
virtual bool drawTransformedBitmap(
const basegfx::B2DPoint& rNull,
const basegfx::B2DPoint& rX,
const basegfx::B2DPoint& rY,
const SalBitmap& rSourceBitmap,
const SalBitmap* pAlphaBitmap,
double fAlpha) override;
virtual bool hasFastDrawTransformedBitmap() const override;
virtual bool drawAlphaRect( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, sal_uInt8 nTransparency ) override;
private:
// local helpers
void DrawTextLayout(const GenericSalLayout&, HDC, bool bUseDWrite, bool bRenderingModeNatural);
public:
// public SalGraphics methods, the interface to the independent vcl part
// get device resolution
virtual void GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) override;
// get the depth of the device
virtual sal_uInt16 GetBitCount() const override;
// get the width of the device
virtual tools::Long GetGraphicsWidth() const override;
// set the clip region to empty
virtual void ResetClipRegion() override;
// set the line color to transparent (= don't draw lines)
virtual void SetLineColor() override;
// set the line color to a specific color
virtual void SetLineColor( Color nColor ) override;
// set the fill color to transparent (= don't fill)
virtual void SetFillColor() override;
// set the fill color to a specific color, shapes will be
// filled accordingly
virtual void SetFillColor( Color nColor ) override;
// enable/disable XOR drawing
virtual void SetXORMode( bool bSet, bool ) override;
// set line color for raster operations
virtual void SetROPLineColor( SalROPColor nROPColor ) override;
// set fill color for raster operations
virtual void SetROPFillColor( SalROPColor nROPColor ) override;
// set the text color to a specific color
virtual void SetTextColor( Color nColor ) override;
// set the font
virtual void SetFont( LogicalFontInstance*, int nFallbackLevel ) override;
// get the current font's metrics
virtual void GetFontMetric( FontMetricDataRef&, int nFallbackLevel ) override;
// get the repertoire of the current font
virtual FontCharMapRef GetFontCharMap() const override;
// get the layout capabilities of the current font
virtual bool GetFontCapabilities(vcl::FontCapabilities &rGetFontCapabilities) const override;
// graphics must fill supplied font list
virtual void GetDevFontList( vcl::font::PhysicalFontCollection* ) override;
// graphics must drop any cached font info
virtual void ClearDevFontCache() override;
virtual bool AddTempDevFont( vcl::font::PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) override;
virtual std::unique_ptr<GenericSalLayout>
GetTextLayout(int nFallbackLevel) override;
virtual void DrawTextLayout( const GenericSalLayout& ) override;
virtual bool supportsOperation( OutDevSupportType ) const override;
virtual SystemGraphicsData GetGraphicsData() const override;
/// Update settings based on the platform values
static void updateSettingsNative( AllSettings& rSettings );
};
// Init/Deinit Graphics
void ImplUpdateSysColorEntries();
int ImplIsSysColorEntry( Color nColor );
void ImplGetLogFontFromFontSelect( const vcl::font::FontSelectPattern&,
const vcl::font::PhysicalFontFace*, LOGFONTW&, bool bAntiAliased);
#define MAX_64KSALPOINTS ((((sal_uInt16)0xFFFF)-8)/sizeof(POINTS))
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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