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145 lines
5.4 KiB
145 lines
5.4 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#ifndef JUCE_DRAWABLEPATH_H_INCLUDED
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#define JUCE_DRAWABLEPATH_H_INCLUDED
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//==============================================================================
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/**
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A drawable object which renders a filled or outlined shape.
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For details on how to change the fill and stroke, see the DrawableShape class.
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@see Drawable, DrawableShape
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*/
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class JUCE_API DrawablePath : public DrawableShape
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{
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public:
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//==============================================================================
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/** Creates a DrawablePath. */
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DrawablePath();
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DrawablePath (const DrawablePath&);
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/** Destructor. */
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~DrawablePath();
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//==============================================================================
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/** Changes the path that will be drawn.
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@see setFillColour, setStrokeType
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*/
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void setPath (const Path& newPath);
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/** Sets the path using a RelativePointPath.
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Calling this will set up a Component::Positioner to automatically update the path
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if any of the points in the source path are dynamic.
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*/
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void setPath (const RelativePointPath& newPath);
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/** Returns the current path. */
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const Path& getPath() const;
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/** Returns the current path for the outline. */
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const Path& getStrokePath() const;
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//==============================================================================
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/** @internal */
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Drawable* createCopy() const;
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/** @internal */
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void refreshFromValueTree (const ValueTree& tree, ComponentBuilder& builder);
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/** @internal */
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ValueTree createValueTree (ComponentBuilder::ImageProvider* imageProvider) const;
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/** @internal */
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static const Identifier valueTreeType;
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//==============================================================================
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/** Internally-used class for wrapping a DrawablePath's state into a ValueTree. */
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class ValueTreeWrapper : public DrawableShape::FillAndStrokeState
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{
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public:
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ValueTreeWrapper (const ValueTree& state);
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bool usesNonZeroWinding() const;
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void setUsesNonZeroWinding (bool b, UndoManager* undoManager);
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class Element
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{
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public:
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explicit Element (const ValueTree& state);
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~Element();
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const Identifier getType() const noexcept { return state.getType(); }
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int getNumControlPoints() const noexcept;
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RelativePoint getControlPoint (int index) const;
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Value getControlPointValue (int index, UndoManager*);
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RelativePoint getStartPoint() const;
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RelativePoint getEndPoint() const;
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void setControlPoint (int index, const RelativePoint& point, UndoManager*);
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float getLength (Expression::Scope*) const;
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ValueTreeWrapper getParent() const;
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Element getPreviousElement() const;
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String getModeOfEndPoint() const;
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void setModeOfEndPoint (const String& newMode, UndoManager*);
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void convertToLine (UndoManager*);
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void convertToCubic (Expression::Scope*, UndoManager*);
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void convertToPathBreak (UndoManager* undoManager);
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ValueTree insertPoint (Point<float> targetPoint, Expression::Scope*, UndoManager*);
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void removePoint (UndoManager* undoManager);
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float findProportionAlongLine (Point<float> targetPoint, Expression::Scope*) const;
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static const Identifier mode, startSubPathElement, closeSubPathElement,
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lineToElement, quadraticToElement, cubicToElement;
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static const char* cornerMode;
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static const char* roundedMode;
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static const char* symmetricMode;
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ValueTree state;
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};
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ValueTree getPathState();
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void readFrom (const RelativePointPath& relativePath, UndoManager* undoManager);
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void writeTo (RelativePointPath& relativePath) const;
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static const Identifier nonZeroWinding, point1, point2, point3;
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};
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private:
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//==============================================================================
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ScopedPointer<RelativePointPath> relativePath;
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class RelativePositioner;
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friend class RelativePositioner;
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void applyRelativePath (const RelativePointPath&, Expression::Scope*);
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DrawablePath& operator= (const DrawablePath&);
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JUCE_LEAK_DETECTOR (DrawablePath)
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};
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#endif // JUCE_DRAWABLEPATH_H_INCLUDED
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