166 lines
4.5 KiB
C++
166 lines
4.5 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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DrawableComposite::DrawableComposite()
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: bounds ({ 0.0f, 0.0f, 100.0f, 100.0f })
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{
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setContentArea ({ 0.0f, 0.0f, 100.0f, 100.0f });
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}
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DrawableComposite::DrawableComposite (const DrawableComposite& other)
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: Drawable (other),
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bounds (other.bounds),
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contentArea (other.contentArea)
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{
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for (auto* c : other.getChildren())
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if (auto* d = dynamic_cast<const Drawable*> (c))
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addAndMakeVisible (d->createCopy());
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}
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DrawableComposite::~DrawableComposite()
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{
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deleteAllChildren();
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}
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Drawable* DrawableComposite::createCopy() const
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{
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return new DrawableComposite (*this);
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}
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//==============================================================================
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Rectangle<float> DrawableComposite::getDrawableBounds() const
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{
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Rectangle<float> r;
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for (auto* c : getChildren())
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if (auto* d = dynamic_cast<const Drawable*> (c))
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r = r.getUnion (d->isTransformed() ? d->getDrawableBounds().transformedBy (d->getTransform())
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: d->getDrawableBounds());
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return r;
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}
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void DrawableComposite::setContentArea (Rectangle<float> newArea)
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{
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contentArea = newArea;
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}
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void DrawableComposite::setBoundingBox (Rectangle<float> newBounds)
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{
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setBoundingBox (Parallelogram<float> (newBounds));
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}
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void DrawableComposite::setBoundingBox (Parallelogram<float> newBounds)
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{
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if (bounds != newBounds)
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{
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bounds = newBounds;
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auto t = AffineTransform::fromTargetPoints (contentArea.getTopLeft(), bounds.topLeft,
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contentArea.getTopRight(), bounds.topRight,
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contentArea.getBottomLeft(), bounds.bottomLeft);
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if (t.isSingularity())
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t = {};
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setTransform (t);
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}
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}
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void DrawableComposite::resetBoundingBoxToContentArea()
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{
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setBoundingBox (contentArea);
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}
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void DrawableComposite::resetContentAreaAndBoundingBoxToFitChildren()
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{
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setContentArea (getDrawableBounds());
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resetBoundingBoxToContentArea();
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}
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void DrawableComposite::parentHierarchyChanged()
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{
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if (auto* parent = getParent())
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originRelativeToComponent = parent->originRelativeToComponent - getPosition();
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}
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void DrawableComposite::childBoundsChanged (Component*)
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{
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updateBoundsToFitChildren();
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}
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void DrawableComposite::childrenChanged()
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{
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updateBoundsToFitChildren();
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}
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void DrawableComposite::updateBoundsToFitChildren()
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{
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if (! updateBoundsReentrant)
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{
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const ScopedValueSetter<bool> setter (updateBoundsReentrant, true, false);
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Rectangle<int> childArea;
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for (auto* c : getChildren())
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childArea = childArea.getUnion (c->getBoundsInParent());
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auto delta = childArea.getPosition();
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childArea += getPosition();
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if (childArea != getBounds())
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{
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if (! delta.isOrigin())
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{
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originRelativeToComponent -= delta;
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for (auto* c : getChildren())
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c->setBounds (c->getBounds() - delta);
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}
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setBounds (childArea);
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}
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}
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}
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//==============================================================================
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Path DrawableComposite::getOutlineAsPath() const
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{
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Path p;
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for (auto* c : getChildren())
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if (auto* d = dynamic_cast<Drawable*> (c))
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p.addPath (d->getOutlineAsPath());
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p.applyTransform (getTransform());
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return p;
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}
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} // namespace juce
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