95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/**
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Base class for Component::Positioners that are based upon relative coordinates.
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@tags{GUI}
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*/
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class JUCE_API RelativeCoordinatePositionerBase : public Component::Positioner,
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public ComponentListener,
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public MarkerList::Listener
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{
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public:
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RelativeCoordinatePositionerBase (Component&);
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~RelativeCoordinatePositionerBase();
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void componentMovedOrResized (Component&, bool, bool);
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void componentParentHierarchyChanged (Component&);
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void componentChildrenChanged (Component&);
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void componentBeingDeleted (Component&);
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void markersChanged (MarkerList*);
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void markerListBeingDeleted (MarkerList*);
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void apply();
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bool addCoordinate (const RelativeCoordinate&);
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bool addPoint (const RelativePoint&);
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//==============================================================================
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/** Used for resolving a RelativeCoordinate expression in the context of a component. */
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class ComponentScope : public Expression::Scope
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{
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public:
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ComponentScope (Component&);
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// Suppress a VS2013 compiler warning
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ComponentScope& operator= (const ComponentScope&) = delete;
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Expression getSymbolValue (const String& symbol) const;
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void visitRelativeScope (const String& scopeName, Visitor&) const;
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String getScopeUID() const;
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protected:
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Component& component;
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Component* findSiblingComponent (const String& componentID) const;
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};
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protected:
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virtual bool registerCoordinates() = 0;
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virtual void applyToComponentBounds() = 0;
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private:
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class DependencyFinderScope;
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friend class DependencyFinderScope;
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Array<Component*> sourceComponents;
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Array<MarkerList*> sourceMarkerLists;
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bool registeredOk;
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void registerComponentListener (Component&);
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void registerMarkerListListener (MarkerList*);
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void unregisterListeners();
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RelativeCoordinatePositionerBase)
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};
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} // namespace juce
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