107 lines
4.1 KiB
C++
107 lines
4.1 KiB
C++
/*
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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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A component that acts as one of the vertical or horizontal bars you see being
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used to resize panels in a window.
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One of these acts with a StretchableLayoutManager to resize the other components.
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@see StretchableLayoutManager
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@tags{GUI}
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*/
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class JUCE_API StretchableLayoutResizerBar : public Component
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{
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public:
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//==============================================================================
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/** Creates a resizer bar for use on a specified layout.
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@param layoutToUse the layout that will be affected when this bar
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is dragged
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@param itemIndexInLayout the item index in the layout that corresponds to
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this bar component. You'll need to set up the item
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properties in a suitable way for a divider bar, e.g.
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for an 8-pixel wide bar which, you could call
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myLayout->setItemLayout (barIndex, 8, 8, 8)
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@param isBarVertical true if it's an upright bar that you drag left and
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right; false for a horizontal one that you drag up and
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down
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*/
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StretchableLayoutResizerBar (StretchableLayoutManager* layoutToUse,
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int itemIndexInLayout,
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bool isBarVertical);
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/** Destructor. */
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~StretchableLayoutResizerBar() override;
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//==============================================================================
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/** This is called when the bar is dragged.
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This method must update the positions of any components whose position is
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determined by the StretchableLayoutManager, because they might have just
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moved.
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The default implementation calls the resized() method of this component's
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parent component, because that's often where you're likely to apply the
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layout, but it can be overridden for more specific needs.
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*/
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virtual void hasBeenMoved();
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//==============================================================================
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/** This abstract base class is implemented by LookAndFeel classes. */
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struct JUCE_API LookAndFeelMethods
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{
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virtual ~LookAndFeelMethods() = default;
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virtual void drawStretchableLayoutResizerBar (Graphics&, int w, int h,
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bool isVerticalBar, bool isMouseOver, bool isMouseDragging) = 0;
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};
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//==============================================================================
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/** @internal */
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void paint (Graphics&) override;
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/** @internal */
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void mouseDown (const MouseEvent&) override;
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/** @internal */
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void mouseDrag (const MouseEvent&) override;
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private:
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//==============================================================================
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StretchableLayoutManager* layout;
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int itemIndex, mouseDownPos;
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bool isVertical;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (StretchableLayoutResizerBar)
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};
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} // namespace juce
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