JUCE/src/gui/graphics/brushes/juce_GradientBrush.cpp

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

   This file is part of the JUCE library - "Jules' Utility Class Extensions"
   Copyright 2004-9 by Raw Material Software Ltd.

  ------------------------------------------------------------------------------

   JUCE can be redistributed and/or modified under the terms of the GNU General
   Public License (Version 2), as published by the Free Software Foundation.
   A copy of the license is included in the JUCE distribution, or can be found
   online 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.rawmaterialsoftware.com/juce for more information.

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

#include "../../../core/juce_StandardHeader.h"

BEGIN_JUCE_NAMESPACE


#include "juce_GradientBrush.h"
#include "../contexts/juce_LowLevelGraphicsContext.h"


//==============================================================================
GradientBrush::GradientBrush (const Colour& colour1,
                              const float x1,
                              const float y1,
                              const Colour& colour2,
                              const float x2,
                              const float y2,
                              const bool isRadial) throw()
    : gradient (colour1, x1, y1,
                colour2, x2, y2,
                isRadial)
{
}

GradientBrush::GradientBrush (const ColourGradient& gradient_) throw()
    : gradient (gradient_)
{
}

GradientBrush::~GradientBrush() throw()
{
}

Brush* GradientBrush::createCopy() const throw()
{
    return new GradientBrush (gradient);
}

void GradientBrush::applyTransform (const AffineTransform& transform) throw()
{
    gradient.transform = gradient.transform.followedBy (transform);
}

void GradientBrush::multiplyOpacity (const float multiple) throw()
{
    gradient.multiplyOpacity (multiple);
}

bool GradientBrush::isInvisible() const throw()
{
    return gradient.isInvisible();
}

//==============================================================================
void GradientBrush::paintPath (LowLevelGraphicsContext& context,
                               const Path& path, const AffineTransform& transform) throw()
{
    context.setGradient (gradient);
    context.fillPath (path, transform);
}

void GradientBrush::paintRectangle (LowLevelGraphicsContext& context,
                                    int x, int y, int w, int h) throw()
{
    context.setGradient (gradient);
    context.fillRect (x, y, w, h, false);
}

void GradientBrush::paintAlphaChannel (LowLevelGraphicsContext& context,
                                       const Image& alphaChannelImage, int imageX, int imageY,
                                       int x, int y, int w, int h) throw()
{
    context.saveState();

    if (context.reduceClipRegion (x, y, w, h))
    {
        context.setGradient (gradient);
        context.fillAlphaChannel (alphaChannelImage, imageX, imageY);
    }

    context.restoreState();
}

END_JUCE_NAMESPACE