void UIWidget::moveChildToIndex(const UIWidgetPtr& child, int index)
{
if(m_destroyed)
return;
if(!child)
return;
if((uint)index - 1 > m_children.size()) {
g_logger.traceError(stdext::format("moving %s to index %d on %s", child->getId(), index, m_id));
return;
}
// remove and push child again
auto it = std::find(m_children.begin(), m_children.end(), child);
if(it == m_children.end()) {
g_logger.traceError("cannot find child");
return;
}
m_children.erase(it);
m_children.insert(m_children.begin() + index - 1, child);
updateChildrenIndexStates();
updateLayout();
}
bool UIAnchorLayout::updateWidget(const UIWidgetPtr& widget, UIAnchorGroup& anchorGroup, UIWidgetPtr first)
{
UIWidgetPtr parentWidget = getParentWidget();
if(!parentWidget)
return false;
if(first == widget) {
g_logger.error(stdext::format("child '%s' of parent widget '%s' is recursively anchored to itself, please fix this", widget->getId(), parentWidget->getId()));
return false;
}
if(!first)
first = widget;
Rect newRect = widget->getRect();
bool verticalMoved = false;
bool horizontalMoved = false;
// calculates new rect based on anchors
for(const UIAnchor& anchor : anchorGroup.getAnchors()) {
// skip invalid anchors
if(anchor.getHookedEdge() == Fw::AnchorNone)
continue;
// determine hooked widget
UIWidgetPtr hookedWidget;
if(parentWidget) {
if(anchor.getHookedWidgetId() == "parent")
hookedWidget = parentWidget;
else if(anchor.getHookedWidgetId() == "next")
hookedWidget = parentWidget->getChildAfter(widget);
else if(anchor.getHookedWidgetId() == "prev")
hookedWidget = parentWidget->getChildBefore(widget);
else
hookedWidget = parentWidget->getChildById(anchor.getHookedWidgetId());
}
// skip invalid anchors
if(!hookedWidget)
continue;
if(hookedWidget != getParentWidget()) {
// update this hooked widget anchors
auto it = m_anchorsGroups.find(hookedWidget);
if(it != m_anchorsGroups.end()) {
UIAnchorGroup& hookedAnchorGroup = it->second;
if(!hookedAnchorGroup.isUpdated())
updateWidget(hookedWidget, hookedAnchorGroup, first);
}
}
// determine hooked widget edge point
Rect hookedWidgetRect = hookedWidget->getRect();
if(hookedWidget == parentWidget)
hookedWidgetRect = parentWidget->getPaddingRect();
int point = 0;
switch(anchor.getHookedEdge()) {
case Fw::AnchorLeft:
point = hookedWidgetRect.left();
break;
case Fw::AnchorRight:
point = hookedWidgetRect.right();
break;
case Fw::AnchorTop:
point = hookedWidgetRect.top();
break;
case Fw::AnchorBottom:
point = hookedWidgetRect.bottom();
break;
case Fw::AnchorHorizontalCenter:
point = hookedWidgetRect.horizontalCenter();
break;
case Fw::AnchorVerticalCenter:
point = hookedWidgetRect.verticalCenter();
break;
default:
// must never happens
assert(false);
break;
}
if(hookedWidget == parentWidget) {
switch(anchor.getHookedEdge()) {
case Fw::AnchorLeft:
case Fw::AnchorRight:
case Fw::AnchorHorizontalCenter:
point -= parentWidget->getVirtualOffset().x;
break;
case Fw::AnchorBottom:
case Fw::AnchorTop:
case Fw::AnchorVerticalCenter:
point -= parentWidget->getVirtualOffset().y;
break;
default:
break;
}
}
switch(anchor.getAnchoredEdge()) {
case Fw::AnchorHorizontalCenter:
newRect.moveHorizontalCenter(point + widget->getMarginLeft() - widget->getMarginRight());
horizontalMoved = true;
break;
case Fw::AnchorLeft:
if(!horizontalMoved) {
newRect.moveLeft(point + widget->getMarginLeft());
horizontalMoved = true;
} else
newRect.setLeft(point + widget->getMarginLeft());
break;
case Fw::AnchorRight:
if(!horizontalMoved) {
newRect.moveRight(point - widget->getMarginRight());
horizontalMoved = true;
} else
newRect.setRight(point - widget->getMarginRight());
break;
case Fw::AnchorVerticalCenter:
newRect.moveVerticalCenter(point + widget->getMarginTop() - widget->getMarginBottom());
verticalMoved = true;
break;
case Fw::AnchorTop:
if(!verticalMoved) {
newRect.moveTop(point + widget->getMarginTop());
verticalMoved = true;
} else
newRect.setTop(point + widget->getMarginTop());
break;
case Fw::AnchorBottom:
if(!verticalMoved) {
newRect.moveBottom(point - widget->getMarginBottom());
verticalMoved = true;
} else
newRect.setBottom(point - widget->getMarginBottom());
break;
default:
break;
}
}
bool changed = false;
if(widget->setRect(newRect))
changed = true;
anchorGroup.setUpdated(true);
return changed;
}
void UIManager::onWidgetDestroy(const UIWidgetPtr& widget)
{
// release input grabs
if(m_keyboardReceiver == widget)
resetKeyboardReceiver();
if(m_mouseReceiver == widget)
resetMouseReceiver();
if(m_hoveredWidget == widget)
updateHoveredWidget();
if(m_pressedWidget == widget)
updatePressedWidget(nullptr);
if(m_draggingWidget == widget)
updateDraggingWidget(nullptr);
#ifndef NDEBUG
if(widget == m_rootWidget || !m_rootWidget)
return;
m_destroyedWidgets.push_back(widget);
if(m_checkEvent && !m_checkEvent->isExecuted())
return;
m_checkEvent = g_dispatcher.scheduleEvent([this] {
g_lua.collectGarbage();
UIWidgetList backupList = m_destroyedWidgets;
m_destroyedWidgets.clear();
g_dispatcher.scheduleEvent([backupList] {
g_lua.collectGarbage();
for(const UIWidgetPtr& widget : backupList) {
if(widget->ref_count() != 1)
g_logger.warning(stdext::format("widget '%s' destroyed but still have %d reference(s) left", widget->getId(), widget->getUseCount()-1));
}
}, 1);
}, 1000);
#endif
}
bool UIAnchorLayout::updateWidget(const UIWidgetPtr& widget, const UIAnchorGroupPtr& anchorGroup, UIWidgetPtr first)
{
UIWidgetPtr parentWidget = getParentWidget();
if(!parentWidget)
return false;
if(first == widget) {
g_logger.error(stdext::format("child '%s' of parent widget '%s' is recursively anchored to itself, please fix this", widget->getId(), parentWidget->getId()));
return false;
}
if(!first)
first = widget;
Rect newRect = widget->getRect();
bool verticalMoved = false;
bool horizontalMoved = false;
// calculates new rect based on anchors
for(const UIAnchorPtr& anchor : anchorGroup->getAnchors()) {
// skip invalid anchors
if(anchor->getHookedEdge() == Fw::AnchorNone)
continue;
// determine hooked widget
UIWidgetPtr hookedWidget = anchor->getHookedWidget(widget, parentWidget);
// skip invalid anchors
if(!hookedWidget)
continue;
if(hookedWidget != getParentWidget()) {
// update this hooked widget anchors
auto it = m_anchorsGroups.find(hookedWidget);
if(it != m_anchorsGroups.end()) {
const UIAnchorGroupPtr& hookedAnchorGroup = it->second;
if(!hookedAnchorGroup->isUpdated())
updateWidget(hookedWidget, hookedAnchorGroup, first);
}
}
int point = anchor->getHookedPoint(hookedWidget, parentWidget);
switch(anchor->getAnchoredEdge()) {
case Fw::AnchorHorizontalCenter:
newRect.moveHorizontalCenter(point + widget->getMarginLeft() - widget->getMarginRight());
horizontalMoved = true;
break;
case Fw::AnchorLeft:
if(!horizontalMoved) {
newRect.moveLeft(point + widget->getMarginLeft());
horizontalMoved = true;
} else
newRect.setLeft(point + widget->getMarginLeft());
break;
case Fw::AnchorRight:
if(!horizontalMoved) {
newRect.moveRight(point - widget->getMarginRight());
horizontalMoved = true;
} else
newRect.setRight(point - widget->getMarginRight());
break;
case Fw::AnchorVerticalCenter:
newRect.moveVerticalCenter(point + widget->getMarginTop() - widget->getMarginBottom());
verticalMoved = true;
break;
case Fw::AnchorTop:
if(!verticalMoved) {
newRect.moveTop(point + widget->getMarginTop());
verticalMoved = true;
} else
newRect.setTop(point + widget->getMarginTop());
break;
case Fw::AnchorBottom:
if(!verticalMoved) {
newRect.moveBottom(point - widget->getMarginBottom());
verticalMoved = true;
} else
newRect.setBottom(point - widget->getMarginBottom());
break;
default:
break;
}
}
bool changed = false;
if(widget->setRect(newRect))
changed = true;
anchorGroup->setUpdated(true);
return changed;
}
