Carla/source/modules/juce_gui_basics/drawables/juce_DrawableRectangle.cpp

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

   This file is part of the JUCE library.
   Copyright (c) 2020 - Raw Material Software Limited

   JUCE is an open source library subject to commercial or open-source
   licensing.

   By using JUCE, you agree to the terms of both the JUCE 6 End-User License
   Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).

   End User License Agreement: www.juce.com/juce-6-licence
   Privacy Policy: www.juce.com/juce-privacy-policy

   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

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

namespace juce
{

DrawableRectangle::DrawableRectangle() {}
DrawableRectangle::~DrawableRectangle() {}

DrawableRectangle::DrawableRectangle (const DrawableRectangle& other)
    : DrawableShape (other),
      bounds (other.bounds),
      cornerSize (other.cornerSize)
{
    rebuildPath();
}

std::unique_ptr<Drawable> DrawableRectangle::createCopy() const
{
    return std::make_unique<DrawableRectangle> (*this);
}

//==============================================================================
void DrawableRectangle::setRectangle (Parallelogram<float> newBounds)
{
    if (bounds != newBounds)
    {
        bounds = newBounds;
        rebuildPath();
    }
}

void DrawableRectangle::setCornerSize (Point<float> newSize)
{
    if (cornerSize != newSize)
    {
        cornerSize = newSize;
        rebuildPath();
    }
}

void DrawableRectangle::rebuildPath()
{
    auto w = bounds.getWidth();
    auto h = bounds.getHeight();

    Path newPath;

    if (cornerSize.x > 0 && cornerSize.y > 0)
        newPath.addRoundedRectangle (0, 0, w, h, cornerSize.x, cornerSize.y);
    else
        newPath.addRectangle (0, 0, w, h);

    newPath.applyTransform (AffineTransform::fromTargetPoints (Point<float>(),       bounds.topLeft,
                                                               Point<float> (w, 0),  bounds.topRight,
                                                               Point<float> (0, h),  bounds.bottomLeft));

    if (path != newPath)
    {
        path.swapWithPath (newPath);
        pathChanged();
    }
}

} // namespace juce