Carla/source/modules/juce_gui_basics/buttons/juce_ArrowButton.cpp

/*
  ==============================================================================

   This file is part of the JUCE library.
   Copyright (c) 2013 - Raw Material Software 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.

  ==============================================================================
*/

ArrowButton::ArrowButton (const String& name, float arrowDirectionInRadians, Colour arrowColour)
   : Button (name), colour (arrowColour)
{
    path.addTriangle (0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.5f);
    path.applyTransform (AffineTransform::rotation (float_Pi * 2.0f * arrowDirectionInRadians, 0.5f, 0.5f));
}

ArrowButton::~ArrowButton() {}

void ArrowButton::paintButton (Graphics& g, bool /*isMouseOverButton*/, bool isButtonDown)
{
    Path p (path);

    const float offset = isButtonDown ? 1.0f : 0.0f;
    p.applyTransform (path.getTransformToScaleToFit (offset, offset, getWidth() - 3.0f, getHeight() - 3.0f, false));

    DropShadow (Colours::black.withAlpha (0.3f), isButtonDown ? 2 : 4, Point<int>()).drawForPath (g, p);

    g.setColour (colour);
    g.fillPath (p);
}