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2022-10-20 20:29:11 +08:00
commit 4d531f8044
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+//
+// Copyright (C) 2017 James Turner  zakalawe@mac.com
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+#ifndef FGCANVASPATH_H
+#define FGCANVASPATH_H
+
+#include "fgcanvaselement.h"
+
+#include <QPainterPath>
+#include <QPen>
+
+class PathQuickItem;
+
+class FGCanvasPath : public FGCanvasElement
+{
+public:
+    FGCanvasPath(FGCanvasGroup* pr, LocalProp* prop);
+
+    void dumpElement() override;
+protected:
+    virtual void doPaint(FGCanvasPaintContext* context) const override;
+
+    void doPolish() override;
+
+    virtual void markStyleDirty() override;
+
+    CanvasItem* createQuickItem(QQuickItem *parent) override;
+    CanvasItem* quickItem() const override;
+
+    void doDestroy() override;
+
+private:
+    void markPathDirty();
+    void markStrokeDirty();
+private:
+    bool onChildAdded(LocalProp *prop) override;
+    bool onChildRemoved(LocalProp* prop) override;
+
+    void rebuildPath() const;
+    void rebuildPen() const;
+
+    void rebuildPathFromCommands(const std::vector<int>& commands, const std::vector<float>& coords) const;
+    bool rebuildFromSVGData(std::vector<int>& commands, std::vector<float>& coords) const;
+    bool rebuildFromRect(std::vector<int> &commands, std::vector<float> &coords) const;
+private:
+    enum PaintType
+    {
+        Path,
+        Rect,
+        RoundRect
+    };
+
+    mutable bool _pathDirty = true;
+    mutable QPainterPath _painterPath;
+    mutable bool _penDirty = true;
+    mutable QPen _stroke;
+    bool _isRect = false;
+
+    mutable PaintType _paintType = Path;
+    mutable QRectF _rect;
+    mutable QSizeF _roundRectRadius;
+
+    PathQuickItem* _quickPath = nullptr;
+};
+
+#endif // FGCANVASPATH_H