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libreoffice/vcl/quartz/AquaGraphicsBackend.cxx
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

1338 lines
43 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* 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 .
*/
#include <sal/config.h>
#include <sal/log.hxx>
#include <cassert>
#include <cstring>
#include <numeric>
#include <utility>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <osl/endian.h>
#include <osl/file.hxx>
#include <sal/types.h>
#include <tools/long.hxx>
#include <vcl/sysdata.hxx>
#include <fontsubset.hxx>
#include <quartz/salbmp.h>
#ifdef MACOSX
#include <quartz/salgdi.h>
#endif
#include <quartz/utils.h>
#ifdef IOS
#include <ios/iosinst.hxx>
#endif
using namespace vcl;
namespace
{
const basegfx::B2DPoint aHalfPointOfs(0.5, 0.5);
void AddPolygonToPath(CGMutablePathRef xPath, const basegfx::B2DPolygon& rPolygon, bool bClosePath,
bool bPixelSnap, bool bLineDraw)
{
// short circuit if there is nothing to do
const int nPointCount = rPolygon.count();
if (nPointCount <= 0)
{
return;
}
const bool bHasCurves = rPolygon.areControlPointsUsed();
for (int nPointIdx = 0, nPrevIdx = 0;; nPrevIdx = nPointIdx++)
{
int nClosedIdx = nPointIdx;
if (nPointIdx >= nPointCount)
{
// prepare to close last curve segment if needed
if (bClosePath && (nPointIdx == nPointCount))
{
nClosedIdx = 0;
}
else
{
break;
}
}
basegfx::B2DPoint aPoint = rPolygon.getB2DPoint(nClosedIdx);
if (bPixelSnap)
{
// snap device coordinates to full pixels
aPoint.setX(basegfx::fround(aPoint.getX()));
aPoint.setY(basegfx::fround(aPoint.getY()));
}
if (bLineDraw)
{
aPoint += aHalfPointOfs;
}
if (!nPointIdx)
{
// first point => just move there
CGPathMoveToPoint(xPath, nullptr, aPoint.getX(), aPoint.getY());
continue;
}
bool bPendingCurve = false;
if (bHasCurves)
{
bPendingCurve = rPolygon.isNextControlPointUsed(nPrevIdx);
bPendingCurve |= rPolygon.isPrevControlPointUsed(nClosedIdx);
}
if (!bPendingCurve) // line segment
{
CGPathAddLineToPoint(xPath, nullptr, aPoint.getX(), aPoint.getY());
}
else // cubic bezier segment
{
basegfx::B2DPoint aCP1 = rPolygon.getNextControlPoint(nPrevIdx);
basegfx::B2DPoint aCP2 = rPolygon.getPrevControlPoint(nClosedIdx);
if (bLineDraw)
{
aCP1 += aHalfPointOfs;
aCP2 += aHalfPointOfs;
}
CGPathAddCurveToPoint(xPath, nullptr, aCP1.getX(), aCP1.getY(), aCP2.getX(),
aCP2.getY(), aPoint.getX(), aPoint.getY());
}
}
if (bClosePath)
{
CGPathCloseSubpath(xPath);
}
}
void alignLinePoint(const Point* i_pIn, float& o_fX, float& o_fY)
{
o_fX = static_cast<float>(i_pIn->getX()) + 0.5;
o_fY = static_cast<float>(i_pIn->getY()) + 0.5;
}
void getBoundRect(sal_uInt32 nPoints, const Point* pPtAry, tools::Long& rX, tools::Long& rY,
tools::Long& rWidth, tools::Long& rHeight)
{
tools::Long nX1 = pPtAry->getX();
tools::Long nX2 = nX1;
tools::Long nY1 = pPtAry->getY();
tools::Long nY2 = nY1;
for (sal_uInt32 n = 1; n < nPoints; n++)
{
if (pPtAry[n].getX() < nX1)
{
nX1 = pPtAry[n].getX();
}
else if (pPtAry[n].getX() > nX2)
{
nX2 = pPtAry[n].getX();
}
if (pPtAry[n].getY() < nY1)
{
nY1 = pPtAry[n].getY();
}
else if (pPtAry[n].getY() > nY2)
{
nY2 = pPtAry[n].getY();
}
}
rX = nX1;
rY = nY1;
rWidth = nX2 - nX1 + 1;
rHeight = nY2 - nY1 + 1;
}
Color ImplGetROPColor(SalROPColor nROPColor)
{
Color nColor;
if (nROPColor == SalROPColor::N0)
{
nColor = Color(0, 0, 0);
}
else
{
nColor = Color(255, 255, 255);
}
return nColor;
}
void drawPattern50(void*, CGContextRef rContext)
{
static const CGRect aRects[2] = { { { 0, 0 }, { 2, 2 } }, { { 2, 2 }, { 2, 2 } } };
CGContextAddRects(rContext, aRects, 2);
CGContextFillPath(rContext);
}
}
AquaGraphicsBackend::AquaGraphicsBackend(AquaSharedAttributes& rShared)
: AquaGraphicsBackendBase(rShared, this)
{
}
AquaGraphicsBackend::~AquaGraphicsBackend() {}
void AquaGraphicsBackend::setClipRegion(vcl::Region const& rRegion)
{
// release old clip path
mrShared.unsetClipPath();
mrShared.mxClipPath = CGPathCreateMutable();
// set current path, either as polypolgon or sequence of rectangles
RectangleVector aRectangles;
rRegion.GetRegionRectangles(aRectangles);
for (const auto& rRect : aRectangles)
{
const tools::Long nW(rRect.Right() - rRect.Left() + 1); // uses +1 logic in original
if (nW)
{
const tools::Long nH(rRect.Bottom() - rRect.Top() + 1); // uses +1 logic in original
if (nH)
{
const CGRect aRect = CGRectMake(rRect.Left(), rRect.Top(), nW, nH);
CGPathAddRect(mrShared.mxClipPath, nullptr, aRect);
}
}
}
// set the current path as clip region
if (mrShared.checkContext())
mrShared.setState();
}
void AquaGraphicsBackend::ResetClipRegion()
{
// release old path and indicate no clipping
mrShared.unsetClipPath();
if (mrShared.checkContext())
{
mrShared.setState();
}
}
sal_uInt16 AquaGraphicsBackend::GetBitCount() const
{
sal_uInt16 nBits = mrShared.mnBitmapDepth ? mrShared.mnBitmapDepth : 32; //24;
return nBits;
}
tools::Long AquaGraphicsBackend::GetGraphicsWidth() const
{
tools::Long width = 0;
if (mrShared.maContextHolder.isSet()
&& (
#ifndef IOS
mrShared.mbWindow ||
#endif
mrShared.mbVirDev))
{
width = mrShared.mnWidth;
}
#ifndef IOS
if (width == 0)
{
if (mrShared.mbWindow && mrShared.mpFrame)
{
width = mrShared.mpFrame->GetWidth();
}
}
#endif
return width;
}
void AquaGraphicsBackend::SetLineColor()
{
mrShared.maLineColor.SetAlpha(0.0); // transparent
if (mrShared.checkContext())
{
CGContextSetRGBStrokeColor(mrShared.maContextHolder.get(), mrShared.maLineColor.GetRed(),
mrShared.maLineColor.GetGreen(), mrShared.maLineColor.GetBlue(),
mrShared.maLineColor.GetAlpha());
}
}
void AquaGraphicsBackend::SetLineColor(Color nColor)
{
mrShared.maLineColor = RGBAColor(nColor);
if (mrShared.checkContext())
{
CGContextSetRGBStrokeColor(mrShared.maContextHolder.get(), mrShared.maLineColor.GetRed(),
mrShared.maLineColor.GetGreen(), mrShared.maLineColor.GetBlue(),
mrShared.maLineColor.GetAlpha());
}
}
void AquaGraphicsBackend::SetFillColor()
{
mrShared.maFillColor.SetAlpha(0.0); // transparent
if (mrShared.checkContext())
{
CGContextSetRGBFillColor(mrShared.maContextHolder.get(), mrShared.maFillColor.GetRed(),
mrShared.maFillColor.GetGreen(), mrShared.maFillColor.GetBlue(),
mrShared.maFillColor.GetAlpha());
}
}
void AquaGraphicsBackend::SetFillColor(Color nColor)
{
mrShared.maFillColor = RGBAColor(nColor);
if (mrShared.checkContext())
{
CGContextSetRGBFillColor(mrShared.maContextHolder.get(), mrShared.maFillColor.GetRed(),
mrShared.maFillColor.GetGreen(), mrShared.maFillColor.GetBlue(),
mrShared.maFillColor.GetAlpha());
}
}
void AquaGraphicsBackend::SetXORMode(bool bSet, bool bInvertOnly)
{
// return early if XOR mode remains unchanged
if (mrShared.mbPrinter)
{
return;
}
if (!bSet && mrShared.mnXorMode == 2)
{
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeNormal);
mrShared.mnXorMode = 0;
return;
}
else if (bSet && bInvertOnly && mrShared.mnXorMode == 0)
{
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeDifference);
mrShared.mnXorMode = 2;
return;
}
if (!mrShared.mpXorEmulation && !bSet)
{
return;
}
if (mrShared.mpXorEmulation && bSet == mrShared.mpXorEmulation->IsEnabled())
{
return;
}
if (!mrShared.checkContext())
{
return;
}
// prepare XOR emulation
if (!mrShared.mpXorEmulation)
{
mrShared.mpXorEmulation = std::make_unique<XorEmulation>();
mrShared.mpXorEmulation->SetTarget(mrShared.mnWidth, mrShared.mnHeight,
mrShared.mnBitmapDepth, mrShared.maContextHolder.get(),
mrShared.maLayer.get());
}
// change the XOR mode
if (bSet)
{
mrShared.mpXorEmulation->Enable();
mrShared.maContextHolder.set(mrShared.mpXorEmulation->GetMaskContext());
mrShared.mnXorMode = 1;
}
else
{
mrShared.mpXorEmulation->UpdateTarget();
mrShared.mpXorEmulation->Disable();
mrShared.maContextHolder.set(mrShared.mpXorEmulation->GetTargetContext());
mrShared.mnXorMode = 0;
}
}
void AquaGraphicsBackend::SetROPFillColor(SalROPColor nROPColor)
{
if (!mrShared.mbPrinter)
{
SetFillColor(ImplGetROPColor(nROPColor));
}
}
void AquaGraphicsBackend::SetROPLineColor(SalROPColor nROPColor)
{
if (!mrShared.mbPrinter)
{
SetLineColor(ImplGetROPColor(nROPColor));
}
}
void AquaGraphicsBackend::drawPixelImpl(tools::Long nX, tools::Long nY, const RGBAColor& rColor)
{
if (!mrShared.checkContext())
return;
// overwrite the fill color
CGContextSetFillColor(mrShared.maContextHolder.get(), rColor.AsArray());
// draw 1x1 rect, there is no pixel drawing in Quartz
const CGRect aDstRect = CGRectMake(nX, nY, 1, 1);
CGContextFillRect(mrShared.maContextHolder.get(), aDstRect);
refreshRect(aDstRect);
// reset the fill color
CGContextSetFillColor(mrShared.maContextHolder.get(), mrShared.maFillColor.AsArray());
}
void AquaGraphicsBackend::drawPixel(tools::Long nX, tools::Long nY)
{
// draw pixel with current line color
drawPixelImpl(nX, nY, mrShared.maLineColor);
}
void AquaGraphicsBackend::drawPixel(tools::Long nX, tools::Long nY, Color nColor)
{
const RGBAColor aPixelColor(nColor);
drawPixelImpl(nX, nY, aPixelColor);
}
void AquaGraphicsBackend::drawLine(tools::Long nX1, tools::Long nY1, tools::Long nX2,
tools::Long nY2)
{
if (nX1 == nX2 && nY1 == nY2)
{
// #i109453# platform independent code expects at least one pixel to be drawn
drawPixel(nX1, nY1);
return;
}
if (!mrShared.checkContext())
return;
CGContextBeginPath(mrShared.maContextHolder.get());
CGContextMoveToPoint(mrShared.maContextHolder.get(), float(nX1) + 0.5, float(nY1) + 0.5);
CGContextAddLineToPoint(mrShared.maContextHolder.get(), float(nX2) + 0.5, float(nY2) + 0.5);
CGContextDrawPath(mrShared.maContextHolder.get(), kCGPathStroke);
tools::Rectangle aRefreshRect(nX1, nY1, nX2, nY2);
(void)aRefreshRect;
// Is a call to RefreshRect( aRefreshRect ) missing here?
}
void AquaGraphicsBackend::drawRect(tools::Long nX, tools::Long nY, tools::Long nWidth,
tools::Long nHeight)
{
if (!mrShared.checkContext())
return;
CGRect aRect = CGRectMake(nX, nY, nWidth, nHeight);
if (mrShared.isPenVisible())
{
aRect.origin.x += 0.5;
aRect.origin.y += 0.5;
aRect.size.width -= 1;
aRect.size.height -= 1;
}
if (mrShared.isBrushVisible())
{
CGContextFillRect(mrShared.maContextHolder.get(), aRect);
}
if (mrShared.isPenVisible())
{
CGContextStrokeRect(mrShared.maContextHolder.get(), aRect);
}
mrShared.refreshRect(nX, nY, nWidth, nHeight);
}
void AquaGraphicsBackend::drawPolyLine(sal_uInt32 nPoints, const Point* pPointArray)
{
if (nPoints < 1)
return;
if (!mrShared.checkContext())
return;
tools::Long nX = 0, nY = 0, nWidth = 0, nHeight = 0;
getBoundRect(nPoints, pPointArray, nX, nY, nWidth, nHeight);
float fX, fY;
CGContextBeginPath(mrShared.maContextHolder.get());
alignLinePoint(pPointArray, fX, fY);
CGContextMoveToPoint(mrShared.maContextHolder.get(), fX, fY);
pPointArray++;
for (sal_uInt32 nPoint = 1; nPoint < nPoints; nPoint++, pPointArray++)
{
alignLinePoint(pPointArray, fX, fY);
CGContextAddLineToPoint(mrShared.maContextHolder.get(), fX, fY);
}
CGContextStrokePath(mrShared.maContextHolder.get());
mrShared.refreshRect(nX, nY, nWidth, nHeight);
}
void AquaGraphicsBackend::drawPolygon(sal_uInt32 nPoints, const Point* pPointArray)
{
if (nPoints <= 1)
return;
if (!mrShared.checkContext())
return;
tools::Long nX = 0, nY = 0, nWidth = 0, nHeight = 0;
getBoundRect(nPoints, pPointArray, nX, nY, nWidth, nHeight);
CGPathDrawingMode eMode;
if (mrShared.isBrushVisible() && mrShared.isPenVisible())
{
eMode = kCGPathEOFillStroke;
}
else if (mrShared.isPenVisible())
{
eMode = kCGPathStroke;
}
else if (mrShared.isBrushVisible())
{
eMode = kCGPathEOFill;
}
else
{
SAL_WARN("vcl.quartz", "Neither pen nor brush visible");
return;
}
CGContextBeginPath(mrShared.maContextHolder.get());
if (mrShared.isPenVisible())
{
float fX, fY;
alignLinePoint(pPointArray, fX, fY);
CGContextMoveToPoint(mrShared.maContextHolder.get(), fX, fY);
pPointArray++;
for (sal_uInt32 nPoint = 1; nPoint < nPoints; nPoint++, pPointArray++)
{
alignLinePoint(pPointArray, fX, fY);
CGContextAddLineToPoint(mrShared.maContextHolder.get(), fX, fY);
}
}
else
{
CGContextMoveToPoint(mrShared.maContextHolder.get(), pPointArray->getX(),
pPointArray->getY());
pPointArray++;
for (sal_uInt32 nPoint = 1; nPoint < nPoints; nPoint++, pPointArray++)
{
CGContextAddLineToPoint(mrShared.maContextHolder.get(), pPointArray->getX(),
pPointArray->getY());
}
}
CGContextClosePath(mrShared.maContextHolder.get());
CGContextDrawPath(mrShared.maContextHolder.get(), eMode);
mrShared.refreshRect(nX, nY, nWidth, nHeight);
}
void AquaGraphicsBackend::drawPolyPolygon(sal_uInt32 nPolyCount, const sal_uInt32* pPoints,
const Point** ppPtAry)
{
if (nPolyCount <= 0)
return;
if (!mrShared.checkContext())
return;
// find bound rect
tools::Long leftX = 0, topY = 0, maxWidth = 0, maxHeight = 0;
getBoundRect(pPoints[0], ppPtAry[0], leftX, topY, maxWidth, maxHeight);
for (sal_uInt32 n = 1; n < nPolyCount; n++)
{
tools::Long nX = leftX, nY = topY, nW = maxWidth, nH = maxHeight;
getBoundRect(pPoints[n], ppPtAry[n], nX, nY, nW, nH);
if (nX < leftX)
{
maxWidth += leftX - nX;
leftX = nX;
}
if (nY < topY)
{
maxHeight += topY - nY;
topY = nY;
}
if (nX + nW > leftX + maxWidth)
{
maxWidth = nX + nW - leftX;
}
if (nY + nH > topY + maxHeight)
{
maxHeight = nY + nH - topY;
}
}
// prepare drawing mode
CGPathDrawingMode eMode;
if (mrShared.isBrushVisible() && mrShared.isPenVisible())
{
eMode = kCGPathEOFillStroke;
}
else if (mrShared.isPenVisible())
{
eMode = kCGPathStroke;
}
else if (mrShared.isBrushVisible())
{
eMode = kCGPathEOFill;
}
else
{
SAL_WARN("vcl.quartz", "Neither pen nor brush visible");
return;
}
// convert to CGPath
CGContextBeginPath(mrShared.maContextHolder.get());
if (mrShared.isPenVisible())
{
for (sal_uInt32 nPoly = 0; nPoly < nPolyCount; nPoly++)
{
const sal_uInt32 nPoints = pPoints[nPoly];
if (nPoints > 1)
{
const Point* pPtAry = ppPtAry[nPoly];
float fX, fY;
alignLinePoint(pPtAry, fX, fY);
CGContextMoveToPoint(mrShared.maContextHolder.get(), fX, fY);
pPtAry++;
for (sal_uInt32 nPoint = 1; nPoint < nPoints; nPoint++, pPtAry++)
{
alignLinePoint(pPtAry, fX, fY);
CGContextAddLineToPoint(mrShared.maContextHolder.get(), fX, fY);
}
CGContextClosePath(mrShared.maContextHolder.get());
}
}
}
else
{
for (sal_uInt32 nPoly = 0; nPoly < nPolyCount; nPoly++)
{
const sal_uInt32 nPoints = pPoints[nPoly];
if (nPoints > 1)
{
const Point* pPtAry = ppPtAry[nPoly];
CGContextMoveToPoint(mrShared.maContextHolder.get(), pPtAry->getX(),
pPtAry->getY());
pPtAry++;
for (sal_uInt32 nPoint = 1; nPoint < nPoints; nPoint++, pPtAry++)
{
CGContextAddLineToPoint(mrShared.maContextHolder.get(), pPtAry->getX(),
pPtAry->getY());
}
CGContextClosePath(mrShared.maContextHolder.get());
}
}
}
CGContextDrawPath(mrShared.maContextHolder.get(), eMode);
mrShared.refreshRect(leftX, topY, maxWidth, maxHeight);
}
void AquaGraphicsBackend::drawPolyPolygon(const basegfx::B2DHomMatrix& rObjectToDevice,
const basegfx::B2DPolyPolygon& rPolyPolygon,
double fTransparency)
{
#ifdef IOS
if (!mrShared.maContextHolder.isSet())
return;
#endif
// short circuit if there is nothing to do
if (rPolyPolygon.count() == 0)
return;
// ignore invisible polygons
if ((fTransparency >= 1.0) || (fTransparency < 0))
return;
// Fallback: Transform to DeviceCoordinates
basegfx::B2DPolyPolygon aPolyPolygon(rPolyPolygon);
aPolyPolygon.transform(rObjectToDevice);
// setup poly-polygon path
CGMutablePathRef xPath = CGPathCreateMutable();
// tdf#120252 Use the correct, already transformed PolyPolygon (as long as
// the transformation is not used here...)
for (auto const& rPolygon : std::as_const(aPolyPolygon))
{
AddPolygonToPath(xPath, rPolygon, true, !getAntiAlias(), mrShared.isPenVisible());
}
const CGRect aRefreshRect = CGPathGetBoundingBox(xPath);
// #i97317# workaround for Quartz having problems with drawing small polygons
if (aRefreshRect.size.width > 0.125 || aRefreshRect.size.height > 0.125)
{
// prepare drawing mode
CGPathDrawingMode eMode;
if (mrShared.isBrushVisible() && mrShared.isPenVisible())
{
eMode = kCGPathEOFillStroke;
}
else if (mrShared.isPenVisible())
{
eMode = kCGPathStroke;
}
else if (mrShared.isBrushVisible())
{
eMode = kCGPathEOFill;
}
else
{
SAL_WARN("vcl.quartz", "Neither pen nor brush visible");
CGPathRelease(xPath);
return;
}
// use the path to prepare the graphics context
mrShared.maContextHolder.saveState();
CGContextBeginPath(mrShared.maContextHolder.get());
CGContextAddPath(mrShared.maContextHolder.get(), xPath);
// draw path with antialiased polygon
CGContextSetShouldAntialias(mrShared.maContextHolder.get(), getAntiAlias());
CGContextSetAlpha(mrShared.maContextHolder.get(), 1.0 - fTransparency);
CGContextDrawPath(mrShared.maContextHolder.get(), eMode);
mrShared.maContextHolder.restoreState();
// mark modified rectangle as updated
refreshRect(aRefreshRect);
}
CGPathRelease(xPath);
}
bool AquaGraphicsBackend::drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice,
const basegfx::B2DPolygon& rPolyLine, double fTransparency,
double fLineWidth,
const std::vector<double>* pStroke, // MM01
basegfx::B2DLineJoin eLineJoin,
css::drawing::LineCap eLineCap, double fMiterMinimumAngle,
bool bPixelSnapHairline)
{
// MM01 check done for simple reasons
if (!rPolyLine.count() || fTransparency < 0.0 || fTransparency > 1.0)
{
return true;
}
#ifdef IOS
if (!mrShared.checkContext())
return false;
#endif
// tdf#124848 get correct LineWidth in discrete coordinates,
if (fLineWidth == 0) // hairline
fLineWidth = 1.0;
else // Adjust line width for object-to-device scale.
fLineWidth = (rObjectToDevice * basegfx::B2DVector(fLineWidth, 0)).getLength();
// #i101491# Aqua does not support B2DLineJoin::NONE; return false to use
// the fallback (own geometry preparation)
// #i104886# linejoin-mode and thus the above only applies to "fat" lines
if ((basegfx::B2DLineJoin::NONE == eLineJoin) && (fLineWidth > 1.3))
return false;
// MM01 need to do line dashing as fallback stuff here now
const double fDotDashLength(
nullptr != pStroke ? std::accumulate(pStroke->begin(), pStroke->end(), 0.0) : 0.0);
const bool bStrokeUsed(0.0 != fDotDashLength);
assert(!bStrokeUsed || (bStrokeUsed && pStroke));
basegfx::B2DPolyPolygon aPolyPolygonLine;
if (bStrokeUsed)
{
// apply LineStyle
basegfx::utils::applyLineDashing(rPolyLine, // source
*pStroke, // pattern
&aPolyPolygonLine, // target for lines
nullptr, // target for gaps
fDotDashLength); // full length if available
}
else
{
// no line dashing, just copy
aPolyPolygonLine.append(rPolyLine);
}
// Transform to DeviceCoordinates, get DeviceLineWidth, execute PixelSnapHairline
aPolyPolygonLine.transform(rObjectToDevice);
if (bPixelSnapHairline)
{
aPolyPolygonLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyPolygonLine);
}
// setup line attributes
CGLineJoin aCGLineJoin = kCGLineJoinMiter;
switch (eLineJoin)
{
case basegfx::B2DLineJoin::NONE:
aCGLineJoin = /*TODO?*/ kCGLineJoinMiter;
break;
case basegfx::B2DLineJoin::Bevel:
aCGLineJoin = kCGLineJoinBevel;
break;
case basegfx::B2DLineJoin::Miter:
aCGLineJoin = kCGLineJoinMiter;
break;
case basegfx::B2DLineJoin::Round:
aCGLineJoin = kCGLineJoinRound;
break;
}
// convert miter minimum angle to miter limit
CGFloat fCGMiterLimit = 1.0 / sin(std::max(fMiterMinimumAngle, 0.01 * M_PI) / 2.0);
// setup cap attribute
CGLineCap aCGLineCap(kCGLineCapButt);
switch (eLineCap)
{
default: // css::drawing::LineCap_BUTT:
{
aCGLineCap = kCGLineCapButt;
break;
}
case css::drawing::LineCap_ROUND:
{
aCGLineCap = kCGLineCapRound;
break;
}
case css::drawing::LineCap_SQUARE:
{
aCGLineCap = kCGLineCapSquare;
break;
}
}
// setup poly-polygon path
CGMutablePathRef xPath = CGPathCreateMutable();
// MM01 todo - I assume that this is OKAY to be done in one run for quartz
// but this NEEDS to be checked/verified
for (sal_uInt32 a(0); a < aPolyPolygonLine.count(); a++)
{
const basegfx::B2DPolygon aPolyLine(aPolyPolygonLine.getB2DPolygon(a));
AddPolygonToPath(xPath, aPolyLine, aPolyLine.isClosed(), !getAntiAlias(), true);
}
const CGRect aRefreshRect = CGPathGetBoundingBox(xPath);
// #i97317# workaround for Quartz having problems with drawing small polygons
if ((aRefreshRect.size.width > 0.125) || (aRefreshRect.size.height > 0.125))
{
// use the path to prepare the graphics context
mrShared.maContextHolder.saveState();
CGContextBeginPath(mrShared.maContextHolder.get());
CGContextAddPath(mrShared.maContextHolder.get(), xPath);
// draw path with antialiased line
CGContextSetShouldAntialias(mrShared.maContextHolder.get(), getAntiAlias());
CGContextSetAlpha(mrShared.maContextHolder.get(), 1.0 - fTransparency);
CGContextSetLineJoin(mrShared.maContextHolder.get(), aCGLineJoin);
CGContextSetLineCap(mrShared.maContextHolder.get(), aCGLineCap);
CGContextSetLineWidth(mrShared.maContextHolder.get(), fLineWidth);
CGContextSetMiterLimit(mrShared.maContextHolder.get(), fCGMiterLimit);
CGContextDrawPath(mrShared.maContextHolder.get(), kCGPathStroke);
mrShared.maContextHolder.restoreState();
// mark modified rectangle as updated
refreshRect(aRefreshRect);
}
CGPathRelease(xPath);
return true;
}
bool AquaGraphicsBackend::drawPolyLineBezier(sal_uInt32 /*nPoints*/, const Point* /*pPointArray*/,
const PolyFlags* /*pFlagArray*/)
{
return false;
}
bool AquaGraphicsBackend::drawPolygonBezier(sal_uInt32 /*nPoints*/, const Point* /*pPointArray*/,
const PolyFlags* /*pFlagArray*/)
{
return false;
}
bool AquaGraphicsBackend::drawPolyPolygonBezier(sal_uInt32 /*nPoly*/, const sal_uInt32* /*pPoints*/,
const Point* const* /*pPointArray*/,
const PolyFlags* const* /*pFlagArray*/)
{
return false;
}
void AquaGraphicsBackend::drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap)
{
if (!mrShared.checkContext())
return;
CGImageRef xImage = rSalBitmap.CreateCroppedImage(
static_cast<int>(rPosAry.mnSrcX), static_cast<int>(rPosAry.mnSrcY),
static_cast<int>(rPosAry.mnSrcWidth), static_cast<int>(rPosAry.mnSrcHeight));
if (!xImage)
return;
const CGRect aDstRect
= CGRectMake(rPosAry.mnDestX, rPosAry.mnDestY, rPosAry.mnDestWidth, rPosAry.mnDestHeight);
CGContextDrawImage(mrShared.maContextHolder.get(), aDstRect, xImage);
CGImageRelease(xImage);
refreshRect(aDstRect);
}
void AquaGraphicsBackend::drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
const SalBitmap& rTransparentBitmap)
{
if (!mrShared.checkContext())
return;
CGImageRef xMaskedImage(rSalBitmap.CreateWithMask(rTransparentBitmap, rPosAry.mnSrcX,
rPosAry.mnSrcY, rPosAry.mnSrcWidth,
rPosAry.mnSrcHeight));
if (!xMaskedImage)
return;
const CGRect aDstRect
= CGRectMake(rPosAry.mnDestX, rPosAry.mnDestY, rPosAry.mnDestWidth, rPosAry.mnDestHeight);
CGContextDrawImage(mrShared.maContextHolder.get(), aDstRect, xMaskedImage);
CGImageRelease(xMaskedImage);
refreshRect(aDstRect);
}
void AquaGraphicsBackend::drawMask(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
Color nMaskColor)
{
if (!mrShared.checkContext())
return;
CGImageRef xImage = rSalBitmap.CreateColorMask(
rPosAry.mnSrcX, rPosAry.mnSrcY, rPosAry.mnSrcWidth, rPosAry.mnSrcHeight, nMaskColor);
if (!xImage)
return;
const CGRect aDstRect
= CGRectMake(rPosAry.mnDestX, rPosAry.mnDestY, rPosAry.mnDestWidth, rPosAry.mnDestHeight);
CGContextDrawImage(mrShared.maContextHolder.get(), aDstRect, xImage);
CGImageRelease(xImage);
refreshRect(aDstRect);
}
std::shared_ptr<SalBitmap> AquaGraphicsBackend::getBitmap(tools::Long nX, tools::Long nY,
tools::Long nDX, tools::Long nDY)
{
SAL_WARN_IF(!mrShared.maLayer.isSet(), "vcl.quartz",
"AquaSalGraphics::getBitmap() with no layer this=" << this);
mrShared.applyXorContext();
std::shared_ptr<QuartzSalBitmap> pBitmap = std::make_shared<QuartzSalBitmap>();
if (!pBitmap->Create(mrShared.maLayer, mrShared.mnBitmapDepth, nX, nY, nDX, nDY,
mrShared.isFlipped()))
{
pBitmap = nullptr;
}
return pBitmap;
}
Color AquaGraphicsBackend::getPixel(tools::Long nX, tools::Long nY)
{
// return default value on printers or when out of bounds
if (!mrShared.maLayer.isSet() || (nX < 0) || (nX >= mrShared.mnWidth) || (nY < 0)
|| (nY >= mrShared.mnHeight))
{
return COL_BLACK;
}
// prepare creation of matching a CGBitmapContext
#if defined OSL_BIGENDIAN
struct
{
unsigned char b, g, r, a;
} aPixel;
#else
struct
{
unsigned char a, r, g, b;
} aPixel;
#endif
// create a one-pixel bitmap context
// TODO: is it worth to cache it?
CGContextRef xOnePixelContext = CGBitmapContextCreate(
&aPixel, 1, 1, 8, 32, GetSalData()->mxRGBSpace,
uint32_t(kCGImageAlphaNoneSkipFirst) | uint32_t(kCGBitmapByteOrder32Big));
// update this graphics layer
mrShared.applyXorContext();
// copy the requested pixel into the bitmap context
if (mrShared.isFlipped())
{
nY = mrShared.mnHeight - nY;
}
const CGPoint aCGPoint = CGPointMake(-nX, -nY);
CGContextDrawLayerAtPoint(xOnePixelContext, aCGPoint, mrShared.maLayer.get());
CGContextRelease(xOnePixelContext);
Color nColor(aPixel.r, aPixel.g, aPixel.b);
return nColor;
}
void AquaSalGraphics::GetResolution(sal_Int32& rDPIX, sal_Int32& rDPIY)
{
#ifndef IOS
if (!mnRealDPIY)
{
initResolution((maShared.mbWindow && maShared.mpFrame) ? maShared.mpFrame->getNSWindow()
: nil);
}
if (maShared.mbPrinter)
{
rDPIX = rDPIY = 720;
}
else
{
rDPIX = mnRealDPIX;
rDPIY = mnRealDPIY;
}
#else
// This *must* be 96 or else the iOS app will behave very badly (tiles are scaled wrongly and
// don't match each others at their boundaries, and other issues). But *why* it must be 96 I
// have no idea. The commit that changed it to 96 from (the arbitrary) 200 did not say. If you
// know where else 96 is explicitly or implicitly hard-coded, please modify this comment.
// Follow-up: It might be this: in 'online', loleaflet/src/map/Map.js:
// 15 = 1440 twips-per-inch / 96 dpi.
// Chosen to match previous hardcoded value of 3840 for
// the current tile pixel size of 256.
rDPIX = rDPIY = 96;
#endif
}
void AquaGraphicsBackend::pattern50Fill()
{
static const CGFloat aFillCol[4] = { 1, 1, 1, 1 };
static const CGPatternCallbacks aCallback = { 0, &drawPattern50, nullptr };
static const CGColorSpaceRef mxP50Space = CGColorSpaceCreatePattern(GetSalData()->mxRGBSpace);
static const CGPatternRef mxP50Pattern
= CGPatternCreate(nullptr, CGRectMake(0, 0, 4, 4), CGAffineTransformIdentity, 4, 4,
kCGPatternTilingConstantSpacing, false, &aCallback);
SAL_WARN_IF(!mrShared.maContextHolder.get(), "vcl.quartz", "maContextHolder.get() is NULL");
CGContextSetFillColorSpace(mrShared.maContextHolder.get(), mxP50Space);
CGContextSetFillPattern(mrShared.maContextHolder.get(), mxP50Pattern, aFillCol);
CGContextFillPath(mrShared.maContextHolder.get());
}
void AquaGraphicsBackend::invert(tools::Long nX, tools::Long nY, tools::Long nWidth,
tools::Long nHeight, SalInvert nFlags)
{
if (mrShared.checkContext())
{
CGRect aCGRect = CGRectMake(nX, nY, nWidth, nHeight);
mrShared.maContextHolder.saveState();
if (nFlags & SalInvert::TrackFrame)
{
const CGFloat dashLengths[2] = { 4.0, 4.0 }; // for drawing dashed line
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeDifference);
CGContextSetRGBStrokeColor(mrShared.maContextHolder.get(), 1.0, 1.0, 1.0, 1.0);
CGContextSetLineDash(mrShared.maContextHolder.get(), 0, dashLengths, 2);
CGContextSetLineWidth(mrShared.maContextHolder.get(), 2.0);
CGContextStrokeRect(mrShared.maContextHolder.get(), aCGRect);
}
else if (nFlags & SalInvert::N50)
{
//CGContextSetAllowsAntialiasing( maContextHolder.get(), false );
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeDifference);
CGContextAddRect(mrShared.maContextHolder.get(), aCGRect);
pattern50Fill();
}
else // just invert
{
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeDifference);
CGContextSetRGBFillColor(mrShared.maContextHolder.get(), 1.0, 1.0, 1.0, 1.0);
CGContextFillRect(mrShared.maContextHolder.get(), aCGRect);
}
mrShared.maContextHolder.restoreState();
refreshRect(aCGRect);
}
}
namespace
{
CGPoint* makeCGptArray(sal_uInt32 nPoints, const Point* pPtAry)
{
CGPoint* CGpoints = new CGPoint[nPoints];
for (sal_uLong i = 0; i < nPoints; i++)
{
CGpoints[i].x = pPtAry[i].getX();
CGpoints[i].y = pPtAry[i].getY();
}
return CGpoints;
}
} // end anonymous ns
void AquaGraphicsBackend::invert(sal_uInt32 nPoints, const Point* pPtAry, SalInvert nSalFlags)
{
if (mrShared.checkContext())
{
mrShared.maContextHolder.saveState();
CGPoint* CGpoints = makeCGptArray(nPoints, pPtAry);
CGContextAddLines(mrShared.maContextHolder.get(), CGpoints, nPoints);
if (nSalFlags & SalInvert::TrackFrame)
{
const CGFloat dashLengths[2] = { 4.0, 4.0 }; // for drawing dashed line
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeDifference);
CGContextSetRGBStrokeColor(mrShared.maContextHolder.get(), 1.0, 1.0, 1.0, 1.0);
CGContextSetLineDash(mrShared.maContextHolder.get(), 0, dashLengths, 2);
CGContextSetLineWidth(mrShared.maContextHolder.get(), 2.0);
CGContextStrokePath(mrShared.maContextHolder.get());
}
else if (nSalFlags & SalInvert::N50)
{
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeDifference);
pattern50Fill();
}
else // just invert
{
CGContextSetBlendMode(mrShared.maContextHolder.get(), kCGBlendModeDifference);
CGContextSetRGBFillColor(mrShared.maContextHolder.get(), 1.0, 1.0, 1.0, 1.0);
CGContextFillPath(mrShared.maContextHolder.get());
}
const CGRect aRefreshRect = CGContextGetClipBoundingBox(mrShared.maContextHolder.get());
mrShared.maContextHolder.restoreState();
delete[] CGpoints;
refreshRect(aRefreshRect);
}
}
#ifndef IOS
bool AquaGraphicsBackend::drawEPS(tools::Long nX, tools::Long nY, tools::Long nWidth,
tools::Long nHeight, void* pEpsData, sal_uInt32 nByteCount)
{
// convert the raw data to an NSImageRef
NSData* xNSData = [NSData dataWithBytes:pEpsData length:static_cast<int>(nByteCount)];
SAL_WNODEPRECATED_DECLARATIONS_PUSH
// 'NSEPSImageRep' is deprecated: first deprecated in macOS 14.0 - `NSEPSImageRep` instances
// cannot be created on macOS 14.0 and later
NSImageRep* xEpsImage = [NSEPSImageRep imageRepWithData:xNSData];
SAL_WNODEPRECATED_DECLARATIONS_POP
if (!xEpsImage)
{
return false;
}
// get the target context
if (!mrShared.checkContext())
{
return false;
}
// NOTE: flip drawing, else the nsimage would be drawn upside down
mrShared.maContextHolder.saveState();
// CGContextTranslateCTM( maContextHolder.get(), 0, +mnHeight );
CGContextScaleCTM(mrShared.maContextHolder.get(), +1, -1);
nY = /*mnHeight*/ -(nY + nHeight);
// prepare the target context
NSGraphicsContext* pOrigNSCtx = [NSGraphicsContext currentContext];
[pOrigNSCtx retain];
// create new context
NSGraphicsContext* pDrawNSCtx =
[NSGraphicsContext graphicsContextWithCGContext:mrShared.maContextHolder.get()
flipped:mrShared.isFlipped()];
// set it, setCurrentContext also releases the previously set one
[NSGraphicsContext setCurrentContext:pDrawNSCtx];
// draw the EPS
const NSRect aDstRect = NSMakeRect(nX, nY, nWidth, nHeight);
const bool bOK = [xEpsImage drawInRect:aDstRect];
// restore the NSGraphicsContext
[NSGraphicsContext setCurrentContext:pOrigNSCtx];
[pOrigNSCtx release]; // restore the original retain count
mrShared.maContextHolder.restoreState();
// mark the destination rectangle as updated
refreshRect(aDstRect);
return bOK;
}
#else
bool AquaGraphicsBackend::drawEPS(tools::Long /*nX*/, tools::Long /*nY*/, tools::Long /*nWidth*/,
tools::Long /*nHeight*/, void* /*pEpsData*/,
sal_uInt32 /*nByteCount*/)
{
return false;
}
#endif
bool AquaGraphicsBackend::blendBitmap(const SalTwoRect& /*rPosAry*/, const SalBitmap& /*rBitmap*/)
{
return false;
}
bool AquaGraphicsBackend::blendAlphaBitmap(const SalTwoRect& /*rPosAry*/,
const SalBitmap& /*rSrcBitmap*/,
const SalBitmap& /*rMaskBitmap*/,
const SalBitmap& /*rAlphaBitmap*/)
{
return false;
}
bool AquaGraphicsBackend::drawAlphaBitmap(const SalTwoRect& rTR, const SalBitmap& rSrcBitmap,
const SalBitmap& rAlphaBmp)
{
// An image mask can't have a depth > 8 bits (should be 1 to 8 bits)
if (rAlphaBmp.GetBitCount() > 8)
return false;
// are these two tests really necessary? (see vcl/unx/source/gdi/salgdi2.cxx)
// horizontal/vertical mirroring not implemented yet
if (rTR.mnDestWidth < 0 || rTR.mnDestHeight < 0)
return false;
CGImageRef xMaskedImage = rSrcBitmap.CreateWithMask(rAlphaBmp, rTR.mnSrcX, rTR.mnSrcY,
rTR.mnSrcWidth, rTR.mnSrcHeight);
if (!xMaskedImage)
return false;
if (mrShared.checkContext())
{
const CGRect aDstRect
= CGRectMake(rTR.mnDestX, rTR.mnDestY, rTR.mnDestWidth, rTR.mnDestHeight);
CGContextDrawImage(mrShared.maContextHolder.get(), aDstRect, xMaskedImage);
refreshRect(aDstRect);
}
CGImageRelease(xMaskedImage);
return true;
}
bool AquaGraphicsBackend::drawTransformedBitmap(const basegfx::B2DPoint& rNull,
const basegfx::B2DPoint& rX,
const basegfx::B2DPoint& rY,
const SalBitmap& rSrcBitmap,
const SalBitmap* pAlphaBmp, double fAlpha)
{
if (!mrShared.checkContext())
return true;
if (fAlpha != 1.0)
return false;
// get the Quartz image
CGImageRef xImage = nullptr;
const Size aSize = rSrcBitmap.GetSize();
if (!pAlphaBmp)
xImage = rSrcBitmap.CreateCroppedImage(0, 0, int(aSize.Width()), int(aSize.Height()));
else
xImage
= rSrcBitmap.CreateWithMask(*pAlphaBmp, 0, 0, int(aSize.Width()), int(aSize.Height()));
if (!xImage)
return false;
// setup the image transformation
// using the rNull,rX,rY points as destinations for the (0,0),(0,Width),(Height,0) source points
mrShared.maContextHolder.saveState();
const basegfx::B2DVector aXRel = rX - rNull;
const basegfx::B2DVector aYRel = rY - rNull;
const CGAffineTransform aCGMat = CGAffineTransformMake(
aXRel.getX() / aSize.Width(), aXRel.getY() / aSize.Width(), aYRel.getX() / aSize.Height(),
aYRel.getY() / aSize.Height(), rNull.getX(), rNull.getY());
CGContextConcatCTM(mrShared.maContextHolder.get(), aCGMat);
// draw the transformed image
const CGRect aSrcRect = CGRectMake(0, 0, aSize.Width(), aSize.Height());
CGContextDrawImage(mrShared.maContextHolder.get(), aSrcRect, xImage);
CGImageRelease(xImage);
// restore the Quartz graphics state
mrShared.maContextHolder.restoreState();
// mark the destination as painted
const CGRect aDstRect = CGRectApplyAffineTransform(aSrcRect, aCGMat);
refreshRect(aDstRect);
return true;
}
bool AquaGraphicsBackend::drawAlphaRect(tools::Long nX, tools::Long nY, tools::Long nWidth,
tools::Long nHeight, sal_uInt8 nTransparency)
{
if (!mrShared.checkContext())
return true;
// save the current state
mrShared.maContextHolder.saveState();
CGContextSetAlpha(mrShared.maContextHolder.get(), (100 - nTransparency) * (1.0 / 100));
CGRect aRect = CGRectMake(nX, nY, nWidth - 1, nHeight - 1);
if (mrShared.isPenVisible())
{
aRect.origin.x += 0.5;
aRect.origin.y += 0.5;
}
CGContextBeginPath(mrShared.maContextHolder.get());
CGContextAddRect(mrShared.maContextHolder.get(), aRect);
CGContextDrawPath(mrShared.maContextHolder.get(), kCGPathFill);
mrShared.maContextHolder.restoreState();
refreshRect(aRect);
return true;
}
bool AquaGraphicsBackend::drawGradient(const tools::PolyPolygon& /*rPolygon*/,
const Gradient& /*rGradient*/)
{
return false;
}
bool AquaGraphicsBackend::implDrawGradient(basegfx::B2DPolyPolygon const& /*rPolyPolygon*/,
SalGradient const& /*rGradient*/)
{
return false;
}
bool AquaGraphicsBackend::supportsOperation(OutDevSupportType /*eType*/) const { return false; }
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */