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void PropertyPanel::init()
{
messageWhenEmpty = TRANS("(nothing selected)");
addAndMakeVisible (viewport);
viewport.setViewedComponent (propertyHolderComponent = new PropertyHolderComponent());
viewport.setFocusContainer (true);
}
void PropertyPanel::resized()
{
viewport.setBounds (getLocalBounds());
updatePropHolderLayout();
}
void PropertyPanel::updatePropHolderLayout() const
{
const int maxWidth = viewport.getMaximumVisibleWidth();
propertyHolderComponent->updateLayout (maxWidth);
const int newMaxWidth = viewport.getMaximumVisibleWidth();
if (maxWidth != newMaxWidth)
{
// need to do this twice because of scrollbars changing the size, etc.
propertyHolderComponent->updateLayout (newMaxWidth);
}
}
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原文地址：http://www.cnblogs.com/csxy/p/4855320.html
