void visibleAreaChanged (const Rectangle<int>&) override
{
updateVisibleArea (true);
if (auto* m = owner.getModel())
m->listWasScrolled();
}
void visibleAreaChanged (const Rectangle<int>&)
{
updateVisibleArea (true);
if (owner.getModel() != nullptr)
owner.getModel()->listWasScrolled();
}
void Viewport::setScrollBarThickness (const int thickness)
{
if (scrollBarThickness != thickness)
{
scrollBarThickness = thickness;
updateVisibleArea();
}
}
//==============================================================================
void Viewport::setSingleStepSizes (const int stepX, const int stepY)
{
if (singleStepX != stepX || singleStepY != stepY)
{
singleStepX = stepX;
singleStepY = stepY;
updateVisibleArea();
}
}
void Viewport::setScrollBarsShown (const bool showVerticalScrollbarIfNeeded,
const bool showHorizontalScrollbarIfNeeded)
{
if (showVScrollbar != showVerticalScrollbarIfNeeded
|| showHScrollbar != showHorizontalScrollbarIfNeeded)
{
showVScrollbar = showVerticalScrollbarIfNeeded;
showHScrollbar = showHorizontalScrollbarIfNeeded;
updateVisibleArea();
}
}
void Viewport::setScrollBarsShown (const bool showVerticalScrollbarIfNeeded,
const bool showHorizontalScrollbarIfNeeded,
const bool allowVerticalScrollingWithoutScrollbar,
const bool allowHorizontalScrollingWithoutScrollbar)
{
allowScrollingWithoutScrollbarV = allowVerticalScrollingWithoutScrollbar;
allowScrollingWithoutScrollbarH = allowHorizontalScrollingWithoutScrollbar;
if (showVScrollbar != showVerticalScrollbarIfNeeded
|| showHScrollbar != showHorizontalScrollbarIfNeeded)
{
showVScrollbar = showVerticalScrollbarIfNeeded;
showHScrollbar = showHorizontalScrollbarIfNeeded;
updateVisibleArea();
}
}
void Viewport::setViewedComponent (Component* const newViewedComponent, const bool deleteComponentWhenNoLongerNeeded)
{
if (contentComp.get() != newViewedComponent)
{
deleteContentComp();
contentComp = newViewedComponent;
deleteContent = deleteComponentWhenNoLongerNeeded;
if (contentComp != nullptr)
{
contentHolder.addAndMakeVisible (contentComp);
setViewPosition (0, 0);
contentComp->addComponentListener (this);
}
updateVisibleArea();
}
}
void Viewport::setScrollBarThickness (const int thickness)
{
int newThickness;
// To stay compatible with the previous code: use the
// default thickness if thickness parameter is zero
// or negative
if (thickness <= 0)
{
customScrollBarThickness = false;
newThickness = getLookAndFeel().getDefaultScrollbarWidth();
}
else
{
customScrollBarThickness = true;
newThickness = thickness;
}
if (scrollBarThickness != newThickness)
{
scrollBarThickness = newThickness;
updateVisibleArea();
}
}
void Viewport::resized()
{
updateVisibleArea();
}
void Viewport::componentMovedOrResized (Component&, bool, bool)
{
updateVisibleArea();
}
void DisplayItem::setEffectiveLookAt(QPointF p) {
if (m_effectiveLookAt == p) return;
m_effectiveLookAt = p;
updateVisibleArea();
}
void DisplayItem::setFactor(qreal f) {
if (!qFuzzyIsNull(m_factor - f)) {
m_factor = f;
updateVisibleArea();
}
}
void DisplayItem::setSize(QSizeF size) {
if (size != m_size) {
m_size = size;
updateVisibleArea();
}
}
