rework mouse events propagation

This commit is contained in:
Eduardo Bart
2012-03-28 08:46:15 -03:00
parent 92d535f981
commit e2ea267703
11 changed files with 66 additions and 108 deletions

View File

@@ -1483,83 +1483,36 @@ bool UIWidget::propagateOnKeyUp(uchar keyCode, int keyboardModifiers)
return onKeyUp(keyCode, keyboardModifiers);
}
bool UIWidget::propagateOnMousePress(const Point& mousePos, Fw::MouseButton button)
bool UIWidget::propagateOnMouseEvent(const Point& mousePos, UIWidgetList& widgetList)
{
// do a backup of children list, because it may change while looping it
UIWidgetPtr clickedChild;
for(const UIWidgetPtr& child : m_children) {
// events on hidden or disabled widgets are discarded
if(!child->isExplicitlyEnabled() || !child->isExplicitlyVisible())
continue;
// mouse press events only go to children that contains the mouse position
if(child->containsPoint(mousePos) && child == getChildByPos(mousePos)) {
clickedChild = child;
break;
bool ret = false;
if(containsChildPoint(mousePos)) {
for(auto it = m_children.rbegin(); it != m_children.rend(); ++it) {
const UIWidgetPtr& child = *it;
if(child->isExplicitlyEnabled() && child->isExplicitlyVisible() && child->containsPoint(mousePos)) {
if(child->propagateOnMouseEvent(mousePos, widgetList)) {
ret = true;
break;
}
}
}
}
if(clickedChild) {
// focusable child gains focus when clicked
if(clickedChild->isFocusable())
focusChild(clickedChild, Fw::MouseFocusReason);
// stop propagating if the child accept the event
if(clickedChild->propagateOnMousePress(mousePos, button))
return true;
}
// only non phatom widgets receives mouse events
if(!isPhantom())
return onMousePress(mousePos, button);
return false;
}
void UIWidget::propagateOnMouseRelease(const Point& mousePos, Fw::MouseButton button, UIWidgetList& widgetList)
{
// do a backup of children list, because it may change while looping it
for(const UIWidgetPtr& child : m_children) {
// events on hidden or disabled widgets are discarded
if(!child->isExplicitlyEnabled() || !child->isExplicitlyVisible())
continue;
// mouse press events only go to children that contains the mouse position
if(child->containsPoint(mousePos) && child == getChildByPos(mousePos)) {
child->propagateOnMouseRelease(mousePos, button, widgetList);
break;
}
}
// only non phatom widgets receives mouse release events
if(!isPhantom())
widgetList.push_back(asUIWidget());
}
void UIWidget::propagateOnMouseMove(const Point& mousePos, const Point& mouseMoved, UIWidgetList& widgetList)
{
for(const UIWidgetPtr& child : m_children) {
// events on hidden or disabled widgets are discarded
if(!child->isExplicitlyEnabled() || !child->isExplicitlyVisible())
continue;
// mouse move events go to all children
child->propagateOnMouseMove(mousePos, mouseMoved, widgetList);
}
widgetList.push_back(asUIWidget());
if(!isPhantom())
ret = true;
return ret;
}
void UIWidget::propagateOnMouseWheel(const Point& mousePos, Fw::MouseWheelDirection direction, UIWidgetList& widgetList)
bool UIWidget::propagateOnMouseMove(const Point& mousePos, const Point& mouseMoved, UIWidgetList& widgetList)
{
for(const UIWidgetPtr& child : m_children) {
// events on hidden or disabled widgets are discarded
if(!child->isExplicitlyEnabled() || !child->isExplicitlyVisible())
continue;
// mouse wheel events only go to children that contains the mouse position
if(child->containsPoint(mousePos) && child == getChildByPos(mousePos))
child->propagateOnMouseWheel(mousePos, direction, widgetList);
for(auto it = m_children.begin(); it != m_children.end(); ++it) {
const UIWidgetPtr& child = *it;
if(child->isExplicitlyVisible() && child->isExplicitlyEnabled())
child->propagateOnMouseMove(mousePos, mouseMoved, widgetList);
}
widgetList.push_back(asUIWidget());
return true;
}