paulxstretch/deps/juce/modules/juce_gui_basics/drawables/juce_DrawableImage.cpp
essej 25bd5d8adb git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"
2022-04-18 17:51:22 -04:00

157 lines
4.3 KiB
C++

/*
==============================================================================
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
{
DrawableImage::DrawableImage() : bounds ({ 0.0f, 0.0f, 1.0f, 1.0f })
{
}
DrawableImage::DrawableImage (const DrawableImage& other)
: Drawable (other),
image (other.image),
opacity (other.opacity),
overlayColour (other.overlayColour),
bounds (other.bounds)
{
setBounds (other.getBounds());
}
DrawableImage::DrawableImage (const Image& imageToUse)
{
setImageInternal (imageToUse);
}
DrawableImage::~DrawableImage()
{
}
std::unique_ptr<Drawable> DrawableImage::createCopy() const
{
return std::make_unique<DrawableImage> (*this);
}
//==============================================================================
void DrawableImage::setImage (const Image& imageToUse)
{
if (setImageInternal (imageToUse))
repaint();
}
void DrawableImage::setOpacity (const float newOpacity)
{
opacity = newOpacity;
}
void DrawableImage::setOverlayColour (Colour newOverlayColour)
{
overlayColour = newOverlayColour;
}
void DrawableImage::setBoundingBox (Rectangle<float> newBounds)
{
setBoundingBox (Parallelogram<float> (newBounds));
}
void DrawableImage::setBoundingBox (Parallelogram<float> newBounds)
{
if (bounds != newBounds)
{
bounds = newBounds;
if (image.isValid())
{
auto tr = bounds.topLeft + (bounds.topRight - bounds.topLeft) / (float) image.getWidth();
auto bl = bounds.topLeft + (bounds.bottomLeft - bounds.topLeft) / (float) image.getHeight();
auto t = AffineTransform::fromTargetPoints (bounds.topLeft.x, bounds.topLeft.y,
tr.x, tr.y,
bl.x, bl.y);
if (t.isSingularity())
t = {};
setTransform (t);
}
}
}
//==============================================================================
void DrawableImage::paint (Graphics& g)
{
if (image.isValid())
{
if (opacity > 0.0f && ! overlayColour.isOpaque())
{
g.setOpacity (opacity);
g.drawImageAt (image, 0, 0, false);
}
if (! overlayColour.isTransparent())
{
g.setColour (overlayColour.withMultipliedAlpha (opacity));
g.drawImageAt (image, 0, 0, true);
}
}
}
Rectangle<float> DrawableImage::getDrawableBounds() const
{
return image.getBounds().toFloat();
}
bool DrawableImage::hitTest (int x, int y)
{
return Drawable::hitTest (x, y) && image.isValid() && image.getPixelAt (x, y).getAlpha() >= 127;
}
Path DrawableImage::getOutlineAsPath() const
{
return {}; // not applicable for images
}
//==============================================================================
bool DrawableImage::setImageInternal (const Image& imageToUse)
{
if (image != imageToUse)
{
image = imageToUse;
setBounds (image.getBounds());
setBoundingBox (image.getBounds().toFloat());
return true;
}
return false;
}
//==============================================================================
std::unique_ptr<AccessibilityHandler> DrawableImage::createAccessibilityHandler()
{
return std::make_unique<AccessibilityHandler> (*this, AccessibilityRole::image);
}
} // namespace juce