Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 265 insertions, 0 deletions

diff --git a/vcl/quartz/salgdiutils.cxx b/vcl/quartz/salgdiutils.cxx
new file mode 100644
index 000000000..57953e536
--- /dev/null
+++ b/vcl/quartz/salgdiutils.cxx
@@ -0,0 +1,265 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/range/b2irange.hxx>
+#include <basegfx/vector/b2ivector.hxx>
+#include <vcl/svapp.hxx>
+
+#include <quartz/salgdi.h>
+#include <quartz/utils.h>
+#include <osx/salframe.h>
+#include <osx/saldata.hxx>
+
+void AquaSalGraphics::SetWindowGraphics( AquaSalFrame* pFrame )
+{
+    mpFrame = pFrame;
+    mbWindow = true;
+    mbPrinter = false;
+    mbVirDev = false;
+}
+
+void AquaSalGraphics::SetPrinterGraphics( CGContextRef xContext, long nDPIX, long nDPIY )
+{
+    mbWindow = false;
+    mbPrinter = true;
+    mbVirDev = false;
+
+    maContextHolder.set(xContext);
+    mnRealDPIX = nDPIX;
+    mnRealDPIY = nDPIY;
+
+    // a previously set clip path is now invalid
+    if( mxClipPath )
+    {
+        CGPathRelease( mxClipPath );
+        mxClipPath = nullptr;
+    }
+
+    if (maContextHolder.isSet())
+    {
+        CGContextSetFillColorSpace( maContextHolder.get(), GetSalData()->mxRGBSpace );
+        CGContextSetStrokeColorSpace( maContextHolder.get(), GetSalData()->mxRGBSpace );
+        CGContextSaveGState( maContextHolder.get() );
+        SetState();
+    }
+}
+
+void AquaSalGraphics::InvalidateContext()
+{
+    UnsetState();
+
+    CGContextRelease(maContextHolder.get());
+    CGContextRelease(maBGContextHolder.get());
+    CGContextRelease(maCSContextHolder.get());
+
+    maContextHolder.set(nullptr);
+    maCSContextHolder.set(nullptr);
+    maBGContextHolder.set(nullptr);
+}
+
+void AquaSalGraphics::UnsetState()
+{
+    if (maBGContextHolder.isSet())
+    {
+        CGContextRelease(maBGContextHolder.get());
+        maBGContextHolder.set(nullptr);
+    }
+    if (maCSContextHolder.isSet())
+    {
+        CGContextRelease(maCSContextHolder.get());
+        maBGContextHolder.set(nullptr);
+    }
+    if (maContextHolder.isSet())
+    {
+        maContextHolder.restoreState();
+        maContextHolder.set(nullptr);
+    }
+    if( mxClipPath )
+    {
+        CGPathRelease( mxClipPath );
+        mxClipPath = nullptr;
+    }
+}
+
+/**
+ * (re-)create the off-screen maLayer we render everything to if
+ * necessary: eg. not initialized yet, or it has an incorrect size.
+ */
+bool AquaSalGraphics::CheckContext()
+{
+    if (mbWindow && mpFrame && (mpFrame->getNSWindow() || Application::IsBitmapRendering()))
+    {
+        const unsigned int nWidth = mpFrame->maGeometry.nWidth;
+        const unsigned int nHeight = mpFrame->maGeometry.nHeight;
+
+        // Let's get the window scaling factor if possible, or use 1.0
+        // as the scaling factor.
+        float fScale = 1.0f;
+        if (mpFrame->getNSWindow())
+            fScale = [mpFrame->getNSWindow() backingScaleFactor];
+
+        CGLayerRef rReleaseLayer = nullptr;
+
+        // check if a new drawing context is needed (e.g. after a resize)
+        if( (unsigned(mnWidth) != nWidth) || (unsigned(mnHeight) != nHeight) )
+        {
+            mnWidth = nWidth;
+            mnHeight = nHeight;
+            // prepare to release the corresponding resources
+            if (maLayer.isSet())
+            {
+                rReleaseLayer = maLayer.get();
+            }
+            else if (maContextHolder.isSet())
+            {
+                CGContextRelease(maContextHolder.get());
+            }
+            CGContextRelease(maBGContextHolder.get());
+            CGContextRelease(maCSContextHolder.get());
+
+            maContextHolder.set(nullptr);
+            maBGContextHolder.set(nullptr);
+            maCSContextHolder.set(nullptr);
+            maLayer.set(nullptr);
+        }
+
+        if (!maContextHolder.isSet())
+        {
+            const int nBitmapDepth = 32;
+
+            float nScaledWidth = mnWidth * fScale;
+            float nScaledHeight = mnHeight * fScale;
+
+            const CGSize aLayerSize = { static_cast<CGFloat>(nScaledWidth), static_cast<CGFloat>(nScaledHeight) };
+
+            const int nBytesPerRow = (nBitmapDepth * nScaledWidth) / 8;
+            int nFlags = kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Host;
+            maBGContextHolder.set(CGBitmapContextCreate(
+                NULL, nScaledWidth, nScaledHeight, 8, nBytesPerRow, GetSalData()->mxRGBSpace, nFlags));
+
+            maLayer.set(CGLayerCreateWithContext(maBGContextHolder.get(), aLayerSize, nullptr));
+            maLayer.setScale(fScale);
+
+            nFlags = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host;
+            maCSContextHolder.set(CGBitmapContextCreate(
+                NULL, nScaledWidth, nScaledHeight, 8, nBytesPerRow, GetSalData()->mxRGBSpace, nFlags));
+
+            CGContextRef xDrawContext = CGLayerGetContext(maLayer.get());
+            maContextHolder = xDrawContext;
+
+            if (rReleaseLayer)
+            {
+                // copy original layer to resized layer
+                if (maContextHolder.isSet())
+                {
+                    CGContextDrawLayerAtPoint(maContextHolder.get(), CGPointZero, rReleaseLayer);
+                }
+                CGLayerRelease(rReleaseLayer);
+            }
+
+            if (maContextHolder.isSet())
+            {
+                CGContextTranslateCTM(maContextHolder.get(), 0, nScaledHeight);
+                CGContextScaleCTM(maContextHolder.get(), 1.0, -1.0);
+                CGContextSetFillColorSpace(maContextHolder.get(), GetSalData()->mxRGBSpace);
+                CGContextSetStrokeColorSpace(maContextHolder.get(), GetSalData()->mxRGBSpace);
+                // apply a scale matrix so everything is auto-magically scaled
+                CGContextScaleCTM(maContextHolder.get(), fScale, fScale);
+                maContextHolder.saveState();
+                SetState();
+
+                // re-enable XOR emulation for the new context
+                if (mpXorEmulation)
+                    mpXorEmulation->SetTarget(mnWidth, mnHeight, mnBitmapDepth, maContextHolder.get(), maLayer.get());
+            }
+        }
+    }
+
+    SAL_WARN_IF(!maContextHolder.isSet() && !mbPrinter, "vcl", "<<<WARNING>>> AquaSalGraphics::CheckContext() FAILED!!!!");
+
+    return maContextHolder.isSet();
+}
+
+CGContextRef AquaSalGraphics::GetContext()
+{
+    if (!maContextHolder.isSet())
+    {
+        CheckContext();
+    }
+    return maContextHolder.get();
+}
+
+/**
+ * Blit the contents of our internal maLayer state to the
+ * associated window, if any; cf. drawRect event handling
+ * on the frame.
+ */
+void AquaSalGraphics::UpdateWindow( NSRect& )
+{
+    if( !mpFrame )
+    {
+        return;
+    }
+
+    NSGraphicsContext* pContext = [NSGraphicsContext currentContext];
+    if (maLayer.isSet() && pContext != nullptr)
+    {
+        CGContextHolder rCGContextHolder([pContext CGContext]);
+
+        rCGContextHolder.saveState();
+
+        CGMutablePathRef rClip = mpFrame->getClipPath();
+        if (rClip)
+        {
+            CGContextBeginPath(rCGContextHolder.get());
+            CGContextAddPath(rCGContextHolder.get(), rClip );
+            CGContextClip(rCGContextHolder.get());
+        }
+
+        ApplyXorContext();
+
+        const CGSize aSize = maLayer.getSizePoints();
+        const CGRect aRect = CGRectMake(0, 0, aSize.width,  aSize.height);
+        const CGRect aRectPoints = { CGPointZero, maLayer.getSizePixels() };
+        CGContextSetBlendMode(maCSContextHolder.get(), kCGBlendModeCopy);
+        CGContextDrawLayerInRect(maCSContextHolder.get(), aRectPoints, maLayer.get());
+
+        CGImageRef img = CGBitmapContextCreateImage(maCSContextHolder.get());
+        CGImageRef displayColorSpaceImage = CGImageCreateCopyWithColorSpace(img, [[mpFrame->getNSWindow() colorSpace] CGColorSpace]);
+        CGContextSetBlendMode(rCGContextHolder.get(), kCGBlendModeCopy);
+        CGContextDrawImage(rCGContextHolder.get(), aRect, displayColorSpaceImage);
+
+        CGImageRelease(img);
+        CGImageRelease(displayColorSpaceImage);
+
+        rCGContextHolder.restoreState();
+    }
+    else
+    {
+        SAL_WARN_IF( !mpFrame->mbInitShow, "vcl", "UpdateWindow called on uneligible graphics" );
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */