//! Set the maximal number of rows for the selection listbox
void CGUIComboBox::setMaxSelectionRows(u32 max)
{
MaxSelectionRows = max;
// force recalculation of open listbox
if (ListBox)
{
openCloseMenu();
openCloseMenu();
}
}
//! draws the element and its children
void CGUIComboBox::draw()
{
if (!IsVisible)
return;
IGUISkin* skin = Environment->getSkin();
// font changed while the listbox is open?
if ( ActiveFont != skin->getFont() && ListBox )
{
// close and re-open to use new font-size
openCloseMenu();
openCloseMenu();
}
IGUIElement *currentFocus = Environment->getFocus();
if (currentFocus != LastFocus)
{
HasFocus = currentFocus == this || isMyChild(currentFocus);
LastFocus = currentFocus;
}
// set colors each time as skin-colors can be changed
SelectedText->setBackgroundColor(skin->getColor(EGDC_HIGH_LIGHT));
if(isEnabled())
{
SelectedText->setDrawBackground(HasFocus);
SelectedText->setOverrideColor(skin->getColor(HasFocus ? EGDC_HIGH_LIGHT_TEXT : EGDC_BUTTON_TEXT));
}
else
{
SelectedText->setDrawBackground(false);
SelectedText->setOverrideColor(skin->getColor(EGDC_GRAY_TEXT));
}
ListButton->setSprite(EGBS_BUTTON_UP, skin->getIcon(EGDI_CURSOR_DOWN), skin->getColor(isEnabled() ? EGDC_WINDOW_SYMBOL : EGDC_GRAY_WINDOW_SYMBOL));
ListButton->setSprite(EGBS_BUTTON_DOWN, skin->getIcon(EGDI_CURSOR_DOWN), skin->getColor(isEnabled() ? EGDC_WINDOW_SYMBOL : EGDC_GRAY_WINDOW_SYMBOL));
core::rect<s32> frameRect(AbsoluteRect);
// draw the border
skin->draw3DSunkenPane(this, skin->getColor(EGDC_3D_HIGH_LIGHT),
true, true, frameRect, &AbsoluteClippingRect);
// draw children
IGUIElement::draw();
}
//! called if an event happened.
bool CGUIComboBox::OnEvent(const SEvent& event)
{
if (IsEnabled)
{
switch(event.EventType)
{
case EET_KEY_INPUT_EVENT:
if (ListBox && event.KeyInput.PressedDown && event.KeyInput.Key == KEY_ESCAPE)
{
// hide list box
openCloseMenu();
return true;
}
else
if (event.KeyInput.Key == KEY_RETURN || event.KeyInput.Key == KEY_SPACE)
{
if (!event.KeyInput.PressedDown)
openCloseMenu();
ListButton->setPressed(ListBox == 0);
return true;
}
else
if (event.KeyInput.PressedDown)
{
s32 oldSelected = Selected;
bool absorb = true;
switch (event.KeyInput.Key)
{
case KEY_DOWN:
setSelected(Selected+1);
break;
case KEY_UP:
setSelected(Selected-1);
break;
case KEY_HOME:
case KEY_PRIOR:
setSelected(0);
break;
case KEY_END:
case KEY_NEXT:
setSelected((s32)Items.size()-1);
break;
default:
absorb = false;
}
if (Selected <0)
setSelected(0);
if (Selected >= (s32)Items.size())
setSelected((s32)Items.size() -1);
if (Selected != oldSelected)
sendSelectionChangedEvent();
if (absorb)
return true;
}
break;
case EET_GUI_EVENT:
switch(event.GUIEvent.EventType)
{
case EGET_ELEMENT_FOCUS_LOST:
if (ListBox &&
(Environment->hasFocus(ListBox) || ListBox->isMyChild(event.GUIEvent.Caller) ) &&
event.GUIEvent.Element != this &&
event.GUIEvent.Element != ListButton &&
event.GUIEvent.Element != ListBox &&
!ListBox->isMyChild(event.GUIEvent.Element))
{
openCloseMenu();
}
break;
case EGET_BUTTON_CLICKED:
if (event.GUIEvent.Caller == ListButton)
{
openCloseMenu();
return true;
}
break;
case EGET_LISTBOX_SELECTED_AGAIN:
case EGET_LISTBOX_CHANGED:
if (event.GUIEvent.Caller == ListBox)
{
setSelected(ListBox->getSelected());
if (Selected <0 || Selected >= (s32)Items.size())
setSelected(-1);
openCloseMenu();
sendSelectionChangedEvent();
}
return true;
default:
break;
}
break;
case EET_MOUSE_INPUT_EVENT:
switch(event.MouseInput.Event)
{
case EMIE_LMOUSE_PRESSED_DOWN:
{
core::position2d<s32> p(event.MouseInput.X, event.MouseInput.Y);
// send to list box
if (ListBox && ListBox->isPointInside(p) && ListBox->OnEvent(event))
return true;
return true;
}
case EMIE_LMOUSE_LEFT_UP:
{
core::position2d<s32> p(event.MouseInput.X, event.MouseInput.Y);
// send to list box
if (!(ListBox &&
ListBox->getAbsolutePosition().isPointInside(p) &&
ListBox->OnEvent(event)))
openCloseMenu();
return true;
}
case EMIE_MOUSE_WHEEL:
{
s32 oldSelected = Selected;
setSelected( Selected + ((event.MouseInput.Wheel < 0) ? 1 : -1));
if (Selected <0)
setSelected(0);
if (Selected >= (s32)Items.size())
setSelected((s32)Items.size() -1);
if (Selected != oldSelected)
sendSelectionChangedEvent();
}
default:
break;
}
break;
default:
break;
}
}
return IGUIElement::OnEvent(event);
}
