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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE 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.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#ifndef JUCE_STRETCHABLELAYOUTRESIZERBAR_H_INCLUDED
#define JUCE_STRETCHABLELAYOUTRESIZERBAR_H_INCLUDED
//==============================================================================
/**
A component that acts as one of the vertical or horizontal bars you see being
used to resize panels in a window.
One of these acts with a StretchableLayoutManager to resize the other components.
@see StretchableLayoutManager
*/
class JUCE_API StretchableLayoutResizerBar : public Component
{
public:
//==============================================================================
/** Creates a resizer bar for use on a specified layout.
@param layoutToUse the layout that will be affected when this bar
is dragged
@param itemIndexInLayout the item index in the layout that corresponds to
this bar component. You'll need to set up the item
properties in a suitable way for a divider bar, e.g.
for an 8-pixel wide bar which, you could call
myLayout->setItemLayout (barIndex, 8, 8, 8)
@param isBarVertical true if it's an upright bar that you drag left and
right; false for a horizontal one that you drag up and
down
*/
StretchableLayoutResizerBar (StretchableLayoutManager* layoutToUse,
int itemIndexInLayout,
bool isBarVertical);
/** Destructor. */
~StretchableLayoutResizerBar();
//==============================================================================
/** This is called when the bar is dragged.
This method must update the positions of any components whose position is
determined by the StretchableLayoutManager, because they might have just
moved.
The default implementation calls the resized() method of this component's
parent component, because that's often where you're likely to apply the
layout, but it can be overridden for more specific needs.
*/
virtual void hasBeenMoved();
//==============================================================================
/** This abstract base class is implemented by LookAndFeel classes. */
struct JUCE_API LookAndFeelMethods
{
virtual ~LookAndFeelMethods() {}
virtual void drawStretchableLayoutResizerBar (Graphics&, int w, int h,
bool isVerticalBar, bool isMouseOver, bool isMouseDragging) = 0;
};
//==============================================================================
/** @internal */
void paint (Graphics&) override;
/** @internal */
void mouseDown (const MouseEvent&) override;
/** @internal */
void mouseDrag (const MouseEvent&) override;
private:
//==============================================================================
StretchableLayoutManager* layout;
int itemIndex, mouseDownPos;
bool isVertical;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (StretchableLayoutResizerBar)
};
#endif // JUCE_STRETCHABLELAYOUTRESIZERBAR_H_INCLUDED
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