Lucas de Vries
78 lines
1.6 KiB
ActionScript
78 lines
1.6 KiB
ActionScript
import elements.BaseGuiElement;
|
|
|
|
export GuiDraggable;
|
|
|
|
class GuiDraggable : BaseGuiElement {
|
|
bool Dragging;
|
|
bool allowPassthrough;
|
|
bool btnDown = false;
|
|
vec2i dragPos;
|
|
vec2i dragOffset;
|
|
|
|
GuiDraggable(IGuiElement@ ParentElement, const recti& Rectangle) {
|
|
Dragging = false;
|
|
allowPassthrough = true;
|
|
super(ParentElement, Rectangle);
|
|
updateAbsolutePosition();
|
|
}
|
|
|
|
void emitChange() {
|
|
GuiEvent evt;
|
|
evt.type = GUI_Changed;
|
|
@evt.caller = this;
|
|
onGuiEvent(evt);
|
|
}
|
|
|
|
bool onMouseEvent(const MouseEvent& event, IGuiElement@ source) {
|
|
if(source is this || allowPassthrough) {
|
|
switch(event.type) {
|
|
case MET_Button_Down:
|
|
if(event.button == 0) {
|
|
btnDown = true;
|
|
dragPos = Position.topLeft;
|
|
dragOffset = mousePos;
|
|
bringToFront();
|
|
return true;
|
|
}
|
|
break;
|
|
case MET_Moved:
|
|
if(Dragging) {
|
|
position = mousePos - dragOffset + dragPos;
|
|
return true;
|
|
}
|
|
else if(btnDown) {
|
|
if((mousePos - dragOffset).length > 2)
|
|
Dragging = true;
|
|
return true;
|
|
}
|
|
break;
|
|
case MET_Button_Up:
|
|
if(event.button == 0) {
|
|
btnDown = false;
|
|
if(Dragging) {
|
|
if(Position.topLeft != dragPos)
|
|
emitChange();
|
|
Dragging = false;
|
|
return true;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return BaseGuiElement::onMouseEvent(event, source);
|
|
}
|
|
|
|
bool onGuiEvent(const GuiEvent& event) {
|
|
if(event.caller is this) {
|
|
switch(event.type) {
|
|
case GUI_Mouse_Left:
|
|
case GUI_Focus_Lost:
|
|
if(Dragging)
|
|
return true;
|
|
break;
|
|
}
|
|
}
|
|
return BaseGuiElement::onGuiEvent(event);
|
|
}
|
|
};
|