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74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE 6 technical preview.
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Copyright (c) 2017 - ROLI Ltd.
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You may use this code under the terms of the GPL v3
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(see www.gnu.org/licenses).
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For this technical preview, this file is not subject to commercial licensing.
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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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Adds a drop-shadow to a component.
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This object creates and manages a set of components which sit around a
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component, creating a gaussian shadow around it. The components will track
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the position of the component and if it's brought to the front they'll also
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follow this.
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For desktop windows you don't need to use this class directly - just
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set the Component::windowHasDropShadow flag when calling
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Component::addToDesktop(), and the system will create one of these if it's
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needed (which it obviously isn't on the Mac, for example).
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@tags{GUI}
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*/
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class JUCE_API DropShadower : private ComponentListener
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{
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public:
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//==============================================================================
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/** Creates a DropShadower. */
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DropShadower (const DropShadow& shadowType);
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/** Destructor. */
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~DropShadower() override;
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/** Attaches the DropShadower to the component you want to shadow. */
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void setOwner (Component* componentToFollow);
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private:
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//==============================================================================
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class ShadowWindow;
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Component* owner;
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OwnedArray<Component> shadowWindows;
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DropShadow shadow;
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bool reentrant;
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WeakReference<Component> lastParentComp;
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void componentMovedOrResized (Component&, bool, bool) override;
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void componentBroughtToFront (Component&) override;
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void componentChildrenChanged (Component&) override;
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void componentParentHierarchyChanged (Component&) override;
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void componentVisibilityChanged (Component&) override;
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void updateParent();
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void updateShadows();
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (DropShadower)
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};
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} // namespace juce
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