/**
* @brief
* Update mouse-over widget
*/
void Gui::UpdateMouseOverWidget()
{
// Has the mouse-over widget changed?
if (m_pMouseOverWidget != m_pMouseOverWidgetNew) {
// Get old mouse-over widget
Widget *m_pMouseOverWidgetOld = m_pMouseOverWidget;
// Save new mouse-over widget
m_pMouseOverWidget = m_pMouseOverWidgetNew;
// Get common parent of old mouse-over widget and the new one
Widget *pParent = (m_pMouseOverWidgetOld && m_pMouseOverWidgetNew) ? m_pMouseOverWidgetNew->GetCommonParent(*m_pMouseOverWidgetOld) : nullptr;
// Choose where to stop (include parent itself only when necessary)
Widget *pStop = pParent;
if (m_pMouseOverWidgetOld == pParent || m_pMouseOverWidgetNew == pParent) {
pStop = (pParent ? pParent->GetParent() : nullptr);
}
// Inform old widgets, that they are no longer mouse-over widgets
Widget *pWidget = m_pMouseOverWidgetOld;
while (pWidget && pWidget != pStop) {
// Send mouse-over message
SendMessage(GuiMessage::OnMouseOver(pWidget, false));
// Next widget
pWidget = pWidget->GetParent();
}
// Inform new widgets, that they are now mouse-over widgets
pWidget = m_pMouseOverWidgetNew;
while (pWidget && pWidget != pStop) {
// Send mouse-over message
SendMessage(GuiMessage::OnMouseOver(pWidget, true));
// Next widget
pWidget = pWidget->GetParent();
}
// Start hover timer
if (m_pMouseOverWidget) {
// Create timer if it has not yet been created
if (!m_pHoverTimer && m_nHoverTime > 0) {
m_pHoverTimer = new Timer(*this);
m_pHoverTimer->EventFire.Connect(EventHandlerOnHoverTimer);
}
// Start timer
if (!m_pHoverTimer->IsActive())
m_pHoverTimer->StartOnce(m_nHoverTime);
}
}
}
BOOL WidDispatch::Destroy( HWID& hWid )
{
std::map<HWID, Widget*>::iterator it =
m_Handle2Object.find(hWid);
if (it == m_Handle2Object.end())
{
return FALSE;
}
Widget* pWid = it->second;
WFX_CONDITION(pWid != NULL);
Widget* pParent = pWid->GetParent();
if (pParent != NULL)
{
pParent->RemoveChild(pWid);
}
m_Handle2Object.erase(it);
std::map<HWID, Widget*>::iterator itPaint =
m_h2oOrphan.find(hWid);
if (itPaint != m_h2oOrphan.end())
{
m_h2oOrphan.erase(itPaint);
}
if (m_h2oCaptured.first == hWid)
{
ClearH2O(m_h2oCaptured);
}
m_pTimer->Destroy(pWid);
RecycleHwid(hWid);
return TRUE;
}
/**
* @brief
* Get top level widget that is parent of this widget
*/
Widget *Widget::GetTopLevelWidget() const
{
// Start with this widget
Widget *pWidget = const_cast<Widget*>(this);
// Find top-level widget in hierarchy
while (pWidget && !pWidget->IsTopLevel())
pWidget = pWidget->GetParent();
// Return widget
return pWidget;
}
/**
* @brief
* Update focus widget
*/
void Gui::UpdateFocusWidget()
{
// Has the focus widget changed?
if (m_pFocusWidget != m_pFocusWidgetNew) {
// Get old focus widget
Widget *m_pFocusWidgetOld = m_pFocusWidget;
// Save new focus widget
m_pFocusWidget = m_pFocusWidgetNew;
// Get common parent of old focus widget and the new one
Widget *pParent = (m_pFocusWidgetOld && m_pFocusWidgetNew) ? m_pFocusWidgetNew->GetCommonParent(*m_pFocusWidgetOld) : nullptr;
// Choose where to stop (include parent itself only when necessary)
Widget *pStop = pParent;
if (m_pFocusWidgetOld == pParent || m_pFocusWidgetNew == pParent) {
pStop = (pParent ? pParent->GetParent() : nullptr);
}
// Inform old widgets, that they are no longer activated
Widget *pWidget = m_pFocusWidgetOld;
while (pWidget && pWidget != pStop) {
// Send activate message
SendMessage(GuiMessage::OnActivate(pWidget, false));
// Next widget
pWidget = pWidget->GetParent();
}
// Inform new widgets, that they are now activated
pWidget = m_pFocusWidgetNew;
while (pWidget && pWidget != pStop) {
// Send activate message
SendMessage(GuiMessage::OnActivate(pWidget, true));
// Next widget
pWidget = pWidget->GetParent();
}
}
}
/**
* @brief
* Send and process a message directly
*/
void Gui::SendMessage(const GuiMessage &cMessage)
{
// Pass message to message filters
for (uint32 i=0; i<m_lstMessageFilters.GetNumOfElements(); i++) {
// Pass message to filter
m_lstMessageFilters[i]->AddMessage(cMessage);
}
// Get widget
Widget *pWidget = cMessage.GetWidget();
// Process message
switch (cMessage.GetType()) {
// Exit application
case MessageOnExit:
// Set flag to leave application
m_bActive = false;
// Skip passing message to widget
return;
// Timer fired
case MessageOnTimer:
{
// Get timer
Timer *pTimer = cMessage.GetTimer();
// Discard message, if the timer has already been destroyed
if (pTimer && m_lstTimers.IsElement(pTimer)) {
// Fire timer
pTimer->Fire();
}
// Skip passing message to widget
return;
}
// Widget has been destroyed
case MessageOnDestroy:
// Remove from parent widget
if (pWidget->GetParent()) {
pWidget->GetParent()->RemoveChild(pWidget);
}
// Remove from list of top-level widgets
if (m_lstTopLevelWidgets.IsElement(pWidget)) {
m_lstTopLevelWidgets.Remove(pWidget);
}
// Add widget to list of destroyed widgets
m_lstDestroyedWidgets.Add(pWidget);
// Pass message on to widget
break;
// Mouse has entered a widget
case MessageOnMouseEnter:
// Set new mouse-over widget
if (m_pMouseOverWidget != pWidget) {
// Update mouse-over widget
m_pMouseOverWidgetNew = pWidget;
UpdateMouseOverWidget();
}
break;
// Mouse has left a widget
case MessageOnMouseLeave:
// Reset mouse-over widget
if (m_pMouseOverWidget == pWidget) {
// Update mouse-over widget
m_pMouseOverWidgetNew = nullptr;
UpdateMouseOverWidget();
}
break;
// Widget has got the focus
case MessageOnGetFocus:
// Set focus widget
if (m_pFocusWidget != pWidget) {
// Update focus widget
m_pFocusWidgetNew = pWidget;
UpdateFocusWidget();
}
break;
// Widget has lost the focus
case MessageOnLooseFocus:
// Set focus widget
if (m_pFocusWidget == pWidget) {
// Update focus widget
m_pFocusWidgetNew = nullptr;
UpdateFocusWidget();
}
break;
case MessageOnUnknown:
case MessageOnInternalMessage:
case MessageOnWakeup:
case MessageOnThemeChanged:
case MessageOnUpdateContent:
case MessageOnUpdateChildWidget:
case MessageOnAddChildWidget:
case MessageOnRemoveChildWidget:
case MessageOnClose:
case MessageOnCreate:
case MessageOnShow:
case MessageOnHide:
case MessageOnEnable:
case MessageOnDisable:
case MessageOnActivate:
case MessageOnDrawBackground:
case MessageOnDraw:
case MessageOnMove:
case MessageOnSize:
case MessageOnWindowState:
case MessageOnEnterFullscreen:
case MessageOnLeaveFullscreen:
case MessageOnPreferredSize:
case MessageOnAdjustContent:
case MessageOnMouseOver:
case MessageOnMouseMove:
case MessageOnMouseHover:
case MessageOnMousePosUpdate:
case MessageOnMouseButtonDown:
case MessageOnMouseButtonUp:
case MessageOnMouseButtonClick:
case MessageOnMouseButtonDoubleClick:
case MessageOnMouseWheel:
case MessageOnKeyDown:
case MessageOnKeyUp:
case MessageOnHotkey:
case MessageOnDrop:
case MessageOnUserMessage:
default:
// Nothing to do in here
break;
}
// Pass message to widget
if (pWidget) {
pWidget->OnMessage(cMessage);
}
}