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dexed/JuceLibraryCode/modules/juce_gui_basics/buttons/juce_ShapeButton.cpp

114 lines
3.7 KiB

/*
==============================================================================
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.
==============================================================================
*/
ShapeButton::ShapeButton (const String& t, Colour n, Colour o, Colour d)
: Button (t),
normalColour (n), overColour (o), downColour (d),
maintainShapeProportions (false),
outlineWidth (0.0f)
{
}
ShapeButton::~ShapeButton() {}
void ShapeButton::setColours (Colour newNormalColour, Colour newOverColour, Colour newDownColour)
{
normalColour = newNormalColour;
overColour = newOverColour;
downColour = newDownColour;
}
void ShapeButton::setOutline (Colour newOutlineColour, const float newOutlineWidth)
{
outlineColour = newOutlineColour;
outlineWidth = newOutlineWidth;
}
void ShapeButton::setBorderSize (BorderSize<int> newBorder)
{
border = newBorder;
}
void ShapeButton::setShape (const Path& newShape,
const bool resizeNowToFitThisShape,
const bool maintainShapeProportions_,
const bool hasShadow)
{
shape = newShape;
maintainShapeProportions = maintainShapeProportions_;
shadow.setShadowProperties (DropShadow (Colours::black.withAlpha (0.5f), 3, Point<int>()));
setComponentEffect (hasShadow ? &shadow : nullptr);
if (resizeNowToFitThisShape)
{
Rectangle<float> newBounds (shape.getBounds());
if (hasShadow)
newBounds = newBounds.expanded (4.0f);
shape.applyTransform (AffineTransform::translation (-newBounds.getX(),
-newBounds.getY()));
setSize (1 + (int) (newBounds.getWidth() + outlineWidth) + border.getLeftAndRight(),
1 + (int) (newBounds.getHeight() + outlineWidth) + border.getTopAndBottom());
}
repaint();
}
void ShapeButton::paintButton (Graphics& g, bool isMouseOverButton, bool isButtonDown)
{
if (! isEnabled())
{
isMouseOverButton = false;
isButtonDown = false;
}
Rectangle<float> r (border.subtractedFrom (getLocalBounds()).toFloat().reduced (outlineWidth * 0.5f));
if (getComponentEffect() != nullptr)
r = r.reduced (2.0f);
if (isButtonDown)
{
const float sizeReductionWhenPressed = 0.04f;
r = r.reduced (sizeReductionWhenPressed * r.getWidth(),
sizeReductionWhenPressed * r.getHeight());
}
const AffineTransform trans (shape.getTransformToScaleToFit (r, maintainShapeProportions));
g.setColour (isButtonDown ? downColour
: isMouseOverButton ? overColour
: normalColour);
g.fillPath (shape, trans);
if (outlineWidth > 0.0f)
{
g.setColour (outlineColour);
g.strokePath (shape, PathStrokeType (outlineWidth), trans);
}
}