emfplus: migrate gdiplus reader to drawinglayer

In the current state interpretation of the GDI+
data is needed in the MetafilePrimitive in the
drawinglayer project. Migrate helper stuff and
reader from cppcanvas to drawinglayer as tooling,
prepare tooling, prepare changing from direct
canvas rendering, isolate and migrate existing
tooling from MetafilePrimitive from reading emf/wmf
to places where it can be commonly used by both,
prepare cange of different graphic statue usages,
start changing XForm to B2DHomMatrix conversions,
...

Change-Id: I2d6954f69464653d111abb316fd9654ad3499c3f

1 files changed, 158 insertions, 0 deletions

diff --git a/drawinglayer/source/tools/emfpcustomlinecap.cxx b/drawinglayer/source/tools/emfpcustomlinecap.cxx
new file mode 100644
index 000000000000..9024a11a564e
--- /dev/null
+++ b/drawinglayer/source/tools/emfpcustomlinecap.cxx
@@ -0,0 +1,158 @@
+/* -*- 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 <com/sun/star/rendering/PathCapType.hpp>
+#include <com/sun/star/rendering/PathJoinType.hpp>
+#include <com/sun/star/rendering/TexturingMode.hpp>
+#include <com/sun/star/rendering/XCanvas.hpp>
+#include <basegfx/tools/canvastools.hxx>
+#include <basegfx/tools/gradienttools.hxx>
+#include <basegfx/tools/tools.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/vector/b2dsize.hxx>
+#include <basegfx/range/b2drange.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/polygon/b2dlinegeometry.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <vcl/canvastools.hxx>
+#include <emfpcustomlinecap.hxx>
+#include <emfppath.hxx>
+#include <emfppen.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::basegfx;
+
+namespace emfplushelper
+{
+    const sal_uInt32 EmfPlusCustomLineCapDataTypeDefault = 0x00000000;
+    const sal_uInt32 EmfPlusCustomLineCapDataTypeAdjustableArrow = 0x00000001;
+
+    const sal_uInt32 EmfPlusCustomLineCapDataFillPath = 0x00000001;
+    const sal_uInt32 EmfPlusCustomLineCapDataLinePath = 0x00000002;
+
+    EMFPCustomLineCap::EMFPCustomLineCap()
+        : EMFPObject()
+        , type(0)
+        , strokeStartCap(0)
+        , strokeEndCap(0)
+        , strokeJoin(0)
+        , miterLimit(0.0)
+        , mbIsFilled(false)
+    {
+    }
+
+    void EMFPCustomLineCap::SetAttributes(rendering::StrokeAttributes& aAttributes)
+    {
+        aAttributes.StartCapType = EMFPPen::lcl_convertStrokeCap(strokeStartCap);
+        aAttributes.EndCapType = EMFPPen::lcl_convertStrokeCap(strokeEndCap);
+        aAttributes.JoinType = EMFPPen::lcl_convertLineJoinType(strokeJoin);
+
+        aAttributes.MiterLimit = miterLimit;
+    }
+
+    void EMFPCustomLineCap::ReadPath(SvStream& s, EmfPlusHelperData& rR, bool bFill)
+    {
+        sal_Int32 pathLength;
+        s.ReadInt32(pathLength);
+        SAL_INFO("cppcanvas.emf", "EMF+\t\tpath length: " << pathLength);
+
+        sal_uInt32 pathHeader;
+        sal_Int32 pathPoints, pathFlags;
+        s.ReadUInt32(pathHeader).ReadInt32(pathPoints).ReadInt32(pathFlags);
+
+        SAL_INFO("cppcanvas.emf", "EMF+\t\tpath (custom cap line path)");
+        SAL_INFO("cppcanvas.emf", "EMF+\t\theader: 0x" << std::hex << pathHeader << " points: " << std::dec << pathPoints << " additional flags: 0x" << std::hex << pathFlags << std::dec);
+
+        EMFPPath path(pathPoints);
+        path.Read(s, pathFlags, rR);
+
+        polygon = path.GetPolygon(rR, false);
+        mbIsFilled = bFill;
+
+        // transformation to convert the path to what LibreOffice
+        // expects
+        B2DHomMatrix aMatrix;
+        aMatrix.scale(1.0, -1.0);
+
+        polygon.transform(aMatrix);
+    };
+
+    void EMFPCustomLineCap::Read(SvStream& s, EmfPlusHelperData& rR)
+    {
+        sal_uInt32 header;
+
+        s.ReadUInt32(header).ReadUInt32(type);
+
+        SAL_INFO("cppcanvas.emf", "EMF+\t\tcustom cap");
+        SAL_INFO("cppcanvas.emf", "EMF+\t\theader: 0x" << std::hex << header << " type: " << type << std::dec);
+
+        if (type == EmfPlusCustomLineCapDataTypeDefault)
+        {
+            sal_uInt32 customLineCapDataFlags, baseCap;
+            float baseInset;
+            float widthScale;
+            float fillHotSpotX, fillHotSpotY, strokeHotSpotX, strokeHotSpotY;
+
+            s.ReadUInt32(customLineCapDataFlags).ReadUInt32(baseCap).ReadFloat(baseInset)
+                .ReadUInt32(strokeStartCap).ReadUInt32(strokeEndCap).ReadUInt32(strokeJoin)
+                .ReadFloat(miterLimit).ReadFloat(widthScale)
+                .ReadFloat(fillHotSpotX).ReadFloat(fillHotSpotY).ReadFloat(strokeHotSpotX).ReadFloat(strokeHotSpotY);
+
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tcustomLineCapDataFlags: 0x" << std::hex << customLineCapDataFlags);
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tbaseCap: 0x" << std::hex << baseCap);
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tbaseInset: " << baseInset);
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tstrokeStartCap: 0x" << std::hex << strokeStartCap);
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tstrokeEndCap: 0x" << std::hex << strokeEndCap);
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tstrokeJoin: 0x" << std::hex << strokeJoin);
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tmiterLimit: " << miterLimit);
+            SAL_INFO("cppcanvas.emf", "EMF+\t\twidthScale: " << widthScale);
+
+            if (customLineCapDataFlags & EmfPlusCustomLineCapDataFillPath)
+            {
+                ReadPath(s, rR, true);
+            }
+
+            if (customLineCapDataFlags & EmfPlusCustomLineCapDataLinePath)
+            {
+                ReadPath(s, rR, false);
+            }
+        }
+        else if (type == EmfPlusCustomLineCapDataTypeAdjustableArrow)
+        {
+            // TODO only reads the data, does not use them [I've had
+            // no test document to be able to implement it]
+
+            sal_Int32 width, height, middleInset, fillState, lineStartCap;
+            sal_Int32 lineEndCap, lineJoin, widthScale;
+            float fillHotSpotX, fillHotSpotY, lineHotSpotX, lineHotSpotY;
+
+            s.ReadInt32(width).ReadInt32(height).ReadInt32(middleInset).ReadInt32(fillState).ReadInt32(lineStartCap)
+                .ReadInt32(lineEndCap).ReadInt32(lineJoin).ReadFloat(miterLimit).ReadInt32(widthScale)
+                .ReadFloat(fillHotSpotX).ReadFloat(fillHotSpotY).ReadFloat(lineHotSpotX).ReadFloat(lineHotSpotY);
+
+            SAL_INFO("cppcanvas.emf", "EMF+\t\tTODO - actually read EmfPlusCustomLineCapArrowData object (section 2.2.2.12)");
+        }
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */