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

2 files changed, 267 insertions, 0 deletions

diff --git a/drawinglayer/inc/emfplushelper.hxx b/drawinglayer/inc/emfplushelper.hxx
new file mode 100644
index 000000000000..1a685a631abd
--- /dev/null
+++ b/drawinglayer/inc/emfplushelper.hxx
@@ -0,0 +1,52 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_DRAWINGLAYER_INC_EMFPLUSHELPER_HXX
+#define INCLUDED_DRAWINGLAYER_INC_EMFPLUSHELPER_HXX
+
+#include <sal/config.h>
+
+ /// predefines
+namespace emfplushelper { struct EmfPlusHelperData; }
+namespace wmfemfhelper { class TargetHolders; }
+namespace wmfemfhelper { class PropertyHolders; }
+
+namespace emfplushelper
+{
+    /// EMF+ data holder
+    class EmfPlusHelper
+    {
+    private:
+        EmfPlusHelperData*      mpD;
+
+    public:
+        EmfPlusHelper(SvMemoryStream& rMemoryStream);
+        ~EmfPlusHelper();
+
+        void processEmfPlusData(
+            SvMemoryStream& rMemoryStream,
+            wmfemfhelper::TargetHolders& rTargetHolders,
+            wmfemfhelper::PropertyHolders& rPropertyHolders,
+            const drawinglayer::geometry::ViewInformation2D& rViewInformation);
+    };
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/drawinglayer/inc/wmfemfhelper.hxx b/drawinglayer/inc/wmfemfhelper.hxx
new file mode 100644
index 000000000000..699b065795df
--- /dev/null
+++ b/drawinglayer/inc/wmfemfhelper.hxx
@@ -0,0 +1,215 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_DRAWINGLAYER_INC_WMFEMFHELPER_HXX
+#define INCLUDED_DRAWINGLAYER_INC_WMFEMFHELPER_HXX
+
+#include <sal/config.h>
+#include <drawinglayer/primitive2d/baseprimitive2d.hxx>
+
+// predefines
+namespace drawinglayer { namespace geometry { class ViewInformation2D; }}
+class GDIMetaFile;
+namespace wmfemfhelper { class PropertyHolder; }
+
+namespace wmfemfhelper
+{
+    /** Helper class to buffer and hold a Primitive target vector. It
+    encapsulates the new/delete functionality and allows to work
+    on pointers of the implementation classes. All data will
+    be converted to uno sequences of uno references when accessing the
+    data.
+    */
+    class TargetHolder
+    {
+    private:
+        std::vector< drawinglayer::primitive2d::BasePrimitive2D* > aTargets;
+
+    public:
+        TargetHolder();
+        ~TargetHolder();
+        sal_uInt32 size() const;
+        void append(drawinglayer::primitive2d::BasePrimitive2D* pCandidate);
+        drawinglayer::primitive2d::Primitive2DContainer getPrimitive2DSequence(const PropertyHolder& rPropertyHolder);
+    };
+}
+
+namespace wmfemfhelper
+{
+    /** Helper class which builds a stack on the TargetHolder class */
+    class TargetHolders
+    {
+    private:
+        std::vector< TargetHolder* >          maTargetHolders;
+
+    public:
+        TargetHolders();
+        sal_uInt32 size() const;
+        void Push();
+        void Pop();
+        TargetHolder& Current();
+        ~TargetHolders();
+    };
+}
+
+namespace wmfemfhelper
+{
+    /** helper class for graphic context
+
+    This class allows to hold a complete representation of classic
+    VCL OutputDevice state. This data is needed for correct
+    interpretation of the MetaFile action flow.
+    */
+    class PropertyHolder
+    {
+    private:
+        /// current transformation (aka MapMode)
+        basegfx::B2DHomMatrix   maTransformation;
+        MapUnit                 maMapUnit;
+
+        /// current colors
+        basegfx::BColor         maLineColor;
+        basegfx::BColor         maFillColor;
+        basegfx::BColor         maTextColor;
+        basegfx::BColor         maTextFillColor;
+        basegfx::BColor         maTextLineColor;
+        basegfx::BColor         maOverlineColor;
+
+        /// clipping
+        basegfx::B2DPolyPolygon maClipPolyPoygon;
+
+        /// font, etc.
+        vcl::Font               maFont;
+        RasterOp                maRasterOp;
+        ComplexTextLayoutFlags   mnLayoutMode;
+        LanguageType            maLanguageType;
+        PushFlags               mnPushFlags;
+
+        /// contains all active markers
+        bool                    mbLineColor : 1;
+        bool                    mbFillColor : 1;
+        bool                    mbTextColor : 1;
+        bool                    mbTextFillColor : 1;
+        bool                    mbTextLineColor : 1;
+        bool                    mbOverlineColor : 1;
+        bool                    mbClipPolyPolygonActive : 1;
+
+    public:
+        PropertyHolder();
+
+        /// read/write accesses
+        const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; }
+        void setTransformation(const basegfx::B2DHomMatrix& rNew) { if (rNew != maTransformation) maTransformation = rNew; }
+
+        MapUnit getMapUnit() const { return maMapUnit; }
+        void setMapUnit(MapUnit eNew) { if (eNew != maMapUnit) maMapUnit = eNew; }
+
+        const basegfx::BColor& getLineColor() const { return maLineColor; }
+        void setLineColor(const basegfx::BColor& rNew) { if (rNew != maLineColor) maLineColor = rNew; }
+        bool getLineColorActive() const { return mbLineColor; }
+        void setLineColorActive(bool bNew) { if (bNew != mbLineColor) mbLineColor = bNew; }
+
+        const basegfx::BColor& getFillColor() const { return maFillColor; }
+        void setFillColor(const basegfx::BColor& rNew) { if (rNew != maFillColor) maFillColor = rNew; }
+        bool getFillColorActive() const { return mbFillColor; }
+        void setFillColorActive(bool bNew) { if (bNew != mbFillColor) mbFillColor = bNew; }
+
+        const basegfx::BColor& getTextColor() const { return maTextColor; }
+        void setTextColor(const basegfx::BColor& rNew) { if (rNew != maTextColor) maTextColor = rNew; }
+        bool getTextColorActive() const { return mbTextColor; }
+        void setTextColorActive(bool bNew) { if (bNew != mbTextColor) mbTextColor = bNew; }
+
+        const basegfx::BColor& getTextFillColor() const { return maTextFillColor; }
+        void setTextFillColor(const basegfx::BColor& rNew) { if (rNew != maTextFillColor) maTextFillColor = rNew; }
+        bool getTextFillColorActive() const { return mbTextFillColor; }
+        void setTextFillColorActive(bool bNew) { if (bNew != mbTextFillColor) mbTextFillColor = bNew; }
+
+        const basegfx::BColor& getTextLineColor() const { return maTextLineColor; }
+        void setTextLineColor(const basegfx::BColor& rNew) { if (rNew != maTextLineColor) maTextLineColor = rNew; }
+        bool getTextLineColorActive() const { return mbTextLineColor; }
+        void setTextLineColorActive(bool bNew) { if (bNew != mbTextLineColor) mbTextLineColor = bNew; }
+
+        const basegfx::BColor& getOverlineColor() const { return maOverlineColor; }
+        void setOverlineColor(const basegfx::BColor& rNew) { if (rNew != maOverlineColor) maOverlineColor = rNew; }
+        bool getOverlineColorActive() const { return mbOverlineColor; }
+        void setOverlineColorActive(bool bNew) { if (bNew != mbOverlineColor) mbOverlineColor = bNew; }
+
+        const basegfx::B2DPolyPolygon& getClipPolyPolygon() const { return maClipPolyPoygon; }
+        void setClipPolyPolygon(const basegfx::B2DPolyPolygon& rNew) { if (rNew != maClipPolyPoygon) maClipPolyPoygon = rNew; }
+        bool getClipPolyPolygonActive() const { return mbClipPolyPolygonActive; }
+        void setClipPolyPolygonActive(bool bNew) { if (bNew != mbClipPolyPolygonActive) mbClipPolyPolygonActive = bNew; }
+
+        const vcl::Font& getFont() const { return maFont; }
+        void setFont(const vcl::Font& rFont) { if (rFont != maFont) maFont = rFont; }
+
+        const RasterOp& getRasterOp() const { return maRasterOp; }
+        void setRasterOp(const RasterOp& rRasterOp) { if (rRasterOp != maRasterOp) maRasterOp = rRasterOp; }
+        bool isRasterOpInvert() const { return (RasterOp::Xor == maRasterOp || RasterOp::Invert == maRasterOp); }
+        bool isRasterOpForceBlack() const { return RasterOp::N0 == maRasterOp; }
+        bool isRasterOpActive() const { return isRasterOpInvert() || isRasterOpForceBlack(); }
+
+        ComplexTextLayoutFlags getLayoutMode() const { return mnLayoutMode; }
+        void setLayoutMode(ComplexTextLayoutFlags nNew) { if (nNew != mnLayoutMode) mnLayoutMode = nNew; }
+
+        LanguageType getLanguageType() const { return maLanguageType; }
+        void setLanguageType(LanguageType aNew) { if (aNew != maLanguageType) maLanguageType = aNew; }
+
+        PushFlags getPushFlags() const { return mnPushFlags; }
+        void setPushFlags(PushFlags nNew) { if (nNew != mnPushFlags) mnPushFlags = nNew; }
+
+        bool getLineOrFillActive() const { return (mbLineColor || mbFillColor); }
+    };
+}
+
+namespace wmfemfhelper
+{
+    /** stack for properites
+
+    This class builds a stack based on the PropertyHolder
+    class. It encapsulates the pointer/new/delete usage to
+    make it safe and implements the push/pop as needed by a
+    VCL Metafile interpreter. The critical part here are the
+    flag values VCL OutputDevice uses here; not all stuff is
+    pushed and thus needs to be copied at pop.
+    */
+    class PropertyHolders
+    {
+    private:
+        std::vector< PropertyHolder* >          maPropertyHolders;
+
+    public:
+        PropertyHolders();
+        void PushDefault();
+        void Push(PushFlags nPushFlags);
+        void Pop();
+        PropertyHolder& Current();
+        ~PropertyHolders();
+    };
+}
+
+namespace wmfemfhelper
+{
+    drawinglayer::primitive2d::Primitive2DContainer interpretMetafile(
+        const GDIMetaFile& rMetaFile,
+        const drawinglayer::geometry::ViewInformation2D& rViewInformation);
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */