//! called if an event happened.
bool CGUIScrollBar::OnEvent(const SEvent& event)
{
if (isEnabled())
{
switch (event.EventType)
{
case EET_KEY_INPUT_EVENT:
if (event.KeyInput.PressedDown)
{
const SINT32 oldPos = Pos;
bool absorb = true;
switch (event.KeyInput.Key)
{
case KEY_LEFT:
case KEY_UP:
setPos(Pos - SmallStep);
break;
case KEY_RIGHT:
case KEY_DOWN:
setPos(Pos + SmallStep);
break;
case KEY_HOME:
setPos(Min);
break;
case KEY_PRIOR:
setPos(Pos - LargeStep);
break;
case KEY_END:
setPos(Max);
break;
case KEY_NEXT:
setPos(Pos + LargeStep);
break;
default:
absorb = false;
}
if (Pos != oldPos)
{
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
}
if (absorb)
return true;
}
break;
case EET_GUI_EVENT:
if (event.GUIEvent.EventType == EGET_BUTTON_CLICKED)
{
if (event.GUIEvent.Caller == UpButton)
setPos(Pos - SmallStep);
else
if (event.GUIEvent.Caller == DownButton)
setPos(Pos + SmallStep);
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
return true;
}
else
if (event.GUIEvent.EventType == EGET_ELEMENT_FOCUS_LOST)
{
if (event.GUIEvent.Caller == this)
Dragging = false;
}
break;
case EET_MOUSE_INPUT_EVENT:
{
const Position2d p(event.MouseInput.X, event.MouseInput.Y);
bool isInside = isPointInside(p);
switch (event.MouseInput.Event)
{
case EMIE_MOUSE_WHEEL:
if (Environment->hasFocus(this))
{
// thanks to a bug report by REAPER
// thanks to tommi by tommi for another bugfix
// everybody needs a little thanking. hallo niko!;-)
setPos(getPos() +
((event.MouseInput.Wheel < 0 ? -1 : 1) * SmallStep * (Horizontal ? 1 : -1))
);
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
return true;
}
break;
case EMIE_LMOUSE_PRESSED_DOWN:
{
if (isInside)
{
Dragging = true;
DraggedBySlider = SliderRect.isPointInside(p);
TrayClick = !DraggedBySlider;
DesiredPos = getPosFromMousePos(p);
Environment->setFocus(this);
return true;
}
break;
}
case EMIE_LMOUSE_LEFT_UP:
case EMIE_MOUSE_MOVED:
{
if (!event.MouseInput.isLeftPressed())
Dragging = false;
if (!Dragging)
{
if (event.MouseInput.Event == EMIE_MOUSE_MOVED)
break;
return isInside;
}
if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
Dragging = false;
const SINT32 newPos = getPosFromMousePos(p);
const SINT32 oldPos = Pos;
if (!DraggedBySlider)
{
if (isInside)
{
DraggedBySlider = SliderRect.isPointInside(p);
TrayClick = !DraggedBySlider;
}
if (DraggedBySlider)
{
setPos(newPos);
}
else
{
TrayClick = false;
if (event.MouseInput.Event == EMIE_MOUSE_MOVED)
return isInside;
}
}
if (DraggedBySlider)
{
setPos(newPos);
}
else
{
DesiredPos = newPos;
}
if (Pos != oldPos && Parent)
{
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
}
return isInside;
} break;
default:
break;
}
} break;
default:
break;
}
}
return IGUIElement::OnEvent(event);
}
//! called if an event happened.
bool CGUIScrollBar::OnEvent(const SEvent& event)
{
if (IsEnabled)
{
switch(event.EventType)
{
case EET_KEY_INPUT_EVENT:
if (event.KeyInput.PressedDown)
{
const s32 oldPos = Pos;
bool absorb = true;
switch (event.KeyInput.Key)
{
case KEY_LEFT:
case KEY_UP:
setPos(Pos-SmallStep);
break;
case KEY_RIGHT:
case KEY_DOWN:
setPos(Pos+SmallStep);
break;
case KEY_HOME:
setPos(0);
break;
case KEY_PRIOR:
setPos(Pos-LargeStep);
break;
case KEY_END:
setPos(Max);
break;
case KEY_NEXT:
setPos(Pos+LargeStep);
break;
default:
absorb = false;
}
if (Pos != oldPos)
{
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
}
if (absorb)
return true;
}
break;
case EET_GUI_EVENT:
if (event.GUIEvent.EventType == EGET_BUTTON_CLICKED)
{
if (event.GUIEvent.Caller == UpButton)
setPos(Pos-SmallStep);
else
if (event.GUIEvent.Caller == DownButton)
setPos(Pos+SmallStep);
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
return true;
}
else
if (event.GUIEvent.EventType == EGET_ELEMENT_FOCUS_LOST)
{
if (event.GUIEvent.Caller == this)
Dragging = false;
}
break;
case EET_MOUSE_INPUT_EVENT:
switch(event.MouseInput.Event)
{
case EMIE_MOUSE_WHEEL:
if (Environment->hasFocus(this))
{ // thanks to a bug report by REAPER
setPos(getPos() + (s32)event.MouseInput.Wheel* -SmallStep);
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
return true;
}
break;
case EMIE_LMOUSE_PRESSED_DOWN:
{
if (AbsoluteClippingRect.isPointInside(core::position2di(event.MouseInput.X, event.MouseInput.Y)))
{
Dragging = true;
DraggedBySlider = SliderRect.isPointInside(core::position2di(event.MouseInput.X, event.MouseInput.Y));
TrayClick = !DraggedBySlider;
DesiredPos = getPosFromMousePos(event.MouseInput.X, event.MouseInput.Y);
return true;
}
break;
}
case EMIE_LMOUSE_LEFT_UP:
case EMIE_MOUSE_MOVED:
if (Dragging)
{
if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
Dragging = false;
const s32 newPos = getPosFromMousePos(event.MouseInput.X, event.MouseInput.Y);
const s32 oldPos = Pos;
if (!DraggedBySlider)
{
if (AbsoluteClippingRect.isPointInside(core::position2di(event.MouseInput.X, event.MouseInput.Y)))
{
DraggedBySlider = SliderRect.isPointInside(core::position2di(event.MouseInput.X, event.MouseInput.Y));
TrayClick = !DraggedBySlider;
}
else
{
TrayClick = false;
if (event.MouseInput.Event == EMIE_MOUSE_MOVED)
return true;
}
}
if (DraggedBySlider)
{
setPos(newPos);
}
else
{
DesiredPos = newPos;
}
if (Pos != oldPos && Parent)
{
SEvent newEvent;
newEvent.EventType = EET_GUI_EVENT;
newEvent.GUIEvent.Caller = this;
newEvent.GUIEvent.Element = 0;
newEvent.GUIEvent.EventType = EGET_SCROLL_BAR_CHANGED;
Parent->OnEvent(newEvent);
}
return true;
}
break;
default:
break;
}
break;
default:
break;
}
}
return IGUIElement::OnEvent(event);
}
