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ComponentHelpers: Refactor clipObscuredRegions

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reuk 2024-05-08 17:20:46 +01:00
parent 78521395f2
commit 592df26ff0
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1 changed files with 29 additions and 27 deletions
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56
modules/juce_gui_basics/detail/juce_ComponentHelpers.h
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@ -191,36 +191,38 @@ struct ComponentHelpers
return convertFromDistantParentSpace (topLevelComp, *target, p);
}
static bool clipObscuredRegions (const Component& comp, Graphics& g,
const Rectangle<int> clipRect, Point<int> delta)
static bool clipChildComponent (const Component& child,
Graphics& g,
const Rectangle<int> clipRect,
Point<int> delta)
{
bool wasClipped = false;
if (! child.isVisible() || child.isTransformed())
return false;
const auto newClip = clipRect.getIntersection (child.boundsRelativeToParent);
if (newClip.isEmpty())
return false;
if (child.isOpaque() && child.componentTransparency == 0)
{
g.excludeClipRegion (newClip + delta);
return true;
}
const auto childPos = child.getPosition();
return clipObscuredRegions (child, g, newClip - childPos, childPos + delta);
}
static bool clipObscuredRegions (const Component& comp,
Graphics& g,
const Rectangle<int> clipRect,
Point<int> delta)
{
auto wasClipped = false;
for (int i = comp.childComponentList.size(); --i >= 0;)
{
auto& child = *comp.childComponentList.getUnchecked (i);
if (child.isVisible() && ! child.isTransformed())
{
auto newClip = clipRect.getIntersection (child.boundsRelativeToParent);
if (! newClip.isEmpty())
{
if (child.isOpaque() && child.componentTransparency == 0)
{
g.excludeClipRegion (newClip + delta);
wasClipped = true;
}
else
{
auto childPos = child.getPosition();
if (clipObscuredRegions (child, g, newClip - childPos, childPos + delta))
wasClipped = true;
}
}
}
}
wasClipped |= clipChildComponent (*comp.childComponentList.getUnchecked (i), g, clipRect, delta);
return wasClipped;
}