private void OnMouseMoveNotCaptured(MouseEventArgs mouseEvent)
{
if (Parent != null && Parent.mouseMoveEventHasBeenAcceptedByOther)
{
mouseMoveEventHasBeenAcceptedByOther = true;
}
for (int i = Children.Count - 1; i >= 0; i--)
{
GuiWidget child = Children[i];
double childX = mouseEvent.X;
double childY = mouseEvent.Y;
child.ParentToChildTransform.inverse_transform(ref childX, ref childY);
MouseEventArgs childMouseEvent = new MouseEventArgs(mouseEvent, childX, childY);
if (child.Visible && child.Enabled && child.CanSelect)
{
child.OnMouseMove(childMouseEvent);
if (child.PositionWithinLocalBounds(childX, childY))
{
mouseMoveEventHasBeenAcceptedByOther = true;
}
}
}
if (PositionWithinLocalBounds(mouseEvent.X, mouseEvent.Y))
{
bool needToCallEnterBounds = underMouseState == UI.UnderMouseState.NotUnderMouse;
if (mouseMoveEventHasBeenAcceptedByOther)
{
if (UnderMouseState == UI.UnderMouseState.FirstUnderMouse)
{
// set it before we call the function to have the state right to the callee
underMouseState = UI.UnderMouseState.UnderMouseNotFirst;
OnMouseLeave(mouseEvent);
}
underMouseState = UI.UnderMouseState.UnderMouseNotFirst;
}
else
{
if (!FirstWidgetUnderMouse)
{
if (mouseMoveEventHasBeenAcceptedByOther)
{
underMouseState = UI.UnderMouseState.UnderMouseNotFirst;
}
else
{
underMouseState = UI.UnderMouseState.FirstUnderMouse;
SetToolTipText(mouseEvent);
OnMouseEnter(mouseEvent);
}
}
else // we are the first under mouse
{
if (mouseMoveEventHasBeenAcceptedByOther)
{
underMouseState = UI.UnderMouseState.UnderMouseNotFirst;
OnMouseLeave(mouseEvent);
}
}
}
if (needToCallEnterBounds)
{
OnMouseEnterBounds(mouseEvent);
}
if (MouseMove != null)
{
MouseMove(this, mouseEvent);
}
}
else if (UnderMouseState != UI.UnderMouseState.NotUnderMouse)
{
if (FirstWidgetUnderMouse)
{
underMouseState = UI.UnderMouseState.NotUnderMouse;
OnMouseLeave(mouseEvent);
}
underMouseState = UI.UnderMouseState.NotUnderMouse;
OnMouseLeaveBounds(mouseEvent);
}
}
public virtual void OnMouseUp(MouseEventArgs mouseEvent)
{
if (childrenLockedInMouseUpCount != 0)
{
BreakInDebugger("This should not be locked.");
}
childrenLockedInMouseUpCount++;
if (mouseCapturedState == MouseCapturedState.NotCaptured)
{
if (PositionWithinLocalBounds(mouseEvent.X, mouseEvent.Y))
{
bool childHasAcceptedThisEvent = false;
for (int i = Children.Count - 1; i >= 0; i--)
{
GuiWidget child = Children[i];
double childX = mouseEvent.X;
double childY = mouseEvent.Y;
child.ParentToChildTransform.inverse_transform(ref childX, ref childY);
MouseEventArgs childMouseEvent = new MouseEventArgs(mouseEvent, childX, childY);
if (child.Visible && child.Enabled && child.CanSelect)
{
if (child.PositionWithinLocalBounds(childX, childY))
{
childHasAcceptedThisEvent = true;
child.OnMouseUp(childMouseEvent);
i = -1;
}
else
{
if (UnderMouseState != UI.UnderMouseState.NotUnderMouse)
{
if (FirstWidgetUnderMouse)
{
OnMouseLeave(mouseEvent);
}
DoMouseMovedOffWidgetRecursive(mouseEvent);
underMouseState = UI.UnderMouseState.NotUnderMouse;
}
}
}
}
if (!childHasAcceptedThisEvent)
{
if (MouseUp != null)
{
MouseUp(this, mouseEvent);
}
}
}
}
else // either this or a child has the mouse captured
{
if (mouseCapturedState == MouseCapturedState.ChildHasMouseCaptured)
{
if (childrenLockedInMouseUpCount != 1)
{
BreakInDebugger("The mouse should always be locked while in mouse up.");
}
int countOfChildernThatThinkTheyHaveTheMouseCaptured = 0;
foreach (GuiWidget child in Children)
{
if (childrenLockedInMouseUpCount != 1)
{
BreakInDebugger("The mouse should always be locked while in mouse up.");
}
double childX = mouseEvent.X;
double childY = mouseEvent.Y;
child.ParentToChildTransform.inverse_transform(ref childX, ref childY);
MouseEventArgs childMouseEvent = new MouseEventArgs(mouseEvent, childX, childY);
if (child.mouseCapturedState != MouseCapturedState.NotCaptured)
{
if (countOfChildernThatThinkTheyHaveTheMouseCaptured > 0)
{
BreakInDebugger("One and only one child should ever have the mouse captured.");
}
child.OnMouseUp(childMouseEvent);
countOfChildernThatThinkTheyHaveTheMouseCaptured++;
}
}
}
else
{
if (mouseCapturedState != MouseCapturedState.ThisHasMouseCaptured)
{
BreakInDebugger("You should only ever get here if you have the mouse captured.");
}
if (MouseUp != null)
{
MouseUp(this, mouseEvent);
}
}
if (!PositionWithinLocalBounds(mouseEvent.X, mouseEvent.Y))
{
if (UnderMouseState != UI.UnderMouseState.NotUnderMouse)
{
if (FirstWidgetUnderMouse)
{
underMouseState = UI.UnderMouseState.NotUnderMouse;
OnMouseLeave(mouseEvent);
OnMouseLeaveBounds(mouseEvent);
}
else
{
underMouseState = UI.UnderMouseState.NotUnderMouse;
OnMouseLeaveBounds(mouseEvent);
}
DoMouseMovedOffWidgetRecursive(mouseEvent);
}
}
ClearCapturedState();
}
childrenLockedInMouseUpCount--;
if (childrenLockedInMouseUpCount != 0)
{
BreakInDebugger("This should not be locked.");
}
}
private void OnMouseMoveWhenCaptured(MouseEventArgs mouseEvent)
{
if (mouseCapturedState == MouseCapturedState.ChildHasMouseCaptured)
{
int countOfChildernThatThinkTheyHaveTheMouseCaptured = 0;
foreach (GuiWidget child in Children)
{
double childX = mouseEvent.X;
double childY = mouseEvent.Y;
child.ParentToChildTransform.inverse_transform(ref childX, ref childY);
MouseEventArgs childMouseEvent = new MouseEventArgs(mouseEvent, childX, childY);
if (child.mouseCapturedState != MouseCapturedState.NotCaptured)
{
child.OnMouseMove(childMouseEvent);
countOfChildernThatThinkTheyHaveTheMouseCaptured++;
}
}
if (countOfChildernThatThinkTheyHaveTheMouseCaptured < 1 || countOfChildernThatThinkTheyHaveTheMouseCaptured > 1)
{
BreakInDebugger("One and only one child should ever have the mouse captured.");
}
}
else
{
if (mouseCapturedState != MouseCapturedState.ThisHasMouseCaptured)
{
BreakInDebugger("You should only ever get here if you have the mouse captured.");
}
if (PositionWithinLocalBounds(mouseEvent.X, mouseEvent.Y))
{
if (!FirstWidgetUnderMouse)
{
underMouseState = UI.UnderMouseState.FirstUnderMouse;
OnMouseEnter(mouseEvent);
OnMouseEnterBounds(mouseEvent);
}
else if (underMouseState == UI.UnderMouseState.NotUnderMouse)
{
underMouseState = UI.UnderMouseState.FirstUnderMouse;
OnMouseEnterBounds(mouseEvent);
}
underMouseState = UI.UnderMouseState.FirstUnderMouse;
}
else
{
if (FirstWidgetUnderMouse)
{
underMouseState = UI.UnderMouseState.NotUnderMouse;
OnMouseLeave(mouseEvent);
OnMouseLeaveBounds(mouseEvent);
}
else if (underMouseState != UI.UnderMouseState.NotUnderMouse)
{
underMouseState = UI.UnderMouseState.NotUnderMouse;
OnMouseLeaveBounds(mouseEvent);
}
underMouseState = UI.UnderMouseState.NotUnderMouse;
}
if (MouseMove != null)
{
MouseMove(this, mouseEvent);
}
}
}
public virtual void OnMouseDown(MouseEventArgs mouseEvent)
{
if (PositionWithinLocalBounds(mouseEvent.X, mouseEvent.Y))
{
bool childHasAcceptedThisEvent = false;
bool childHasTakenFocus = false;
for (int i = Children.Count - 1; i >= 0; i--)
{
GuiWidget child = Children[i];
double childX = mouseEvent.X;
double childY = mouseEvent.Y;
child.ParentToChildTransform.inverse_transform(ref childX, ref childY);
MouseEventArgs childMouseEvent = new MouseEventArgs(mouseEvent, childX, childY);
// If any previous child has accepted the MouseDown, then we won't continue propogating the event and
// will attempt to fire MovedOffWidget logic
if (childHasAcceptedThisEvent)
{
// another child already took the down so no one else can.
child.DoMouseMovedOffWidgetRecursive(childMouseEvent);
}
else
{
if (child.Visible && child.Enabled && child.CanSelect)
{
if (child.PositionWithinLocalBounds(childX, childY))
{
childHasAcceptedThisEvent = true;
child.OnMouseDown(childMouseEvent);
if (child.ContainsFocus)
{
childHasTakenFocus = true;
}
}
else
{
child.DoMouseMovedOffWidgetRecursive(childMouseEvent);
child.Unfocus();
}
}
}
}
bool mouseEnteredBounds = underMouseState == UI.UnderMouseState.NotUnderMouse;
if (childHasAcceptedThisEvent)
{
mouseCapturedState = MouseCapturedState.ChildHasMouseCaptured;
if (UnderMouseState == UI.UnderMouseState.FirstUnderMouse)
{
underMouseState = UI.UnderMouseState.NotUnderMouse;
OnMouseLeave(mouseEvent);
}
underMouseState = UI.UnderMouseState.UnderMouseNotFirst;
}
else
{
mouseCapturedState = MouseCapturedState.ThisHasMouseCaptured;
if (!FirstWidgetUnderMouse)
{
underMouseState = UI.UnderMouseState.FirstUnderMouse;
OnMouseEnter(mouseEvent);
}
if (MouseDown != null)
{
MouseDown(this, mouseEvent);
}
}
if (mouseEnteredBounds)
{
OnMouseEnterBounds(mouseEvent);
}
if (!childHasTakenFocus)
{
if (CanFocus)
{
Focus();
}
}
if (MouseDownInBounds != null)
{
MouseDownInBounds(this, mouseEvent);
}
}
else if (UnderMouseState != UI.UnderMouseState.NotUnderMouse)
{
Unfocus();
mouseCapturedState = MouseCapturedState.NotCaptured;
OnMouseLeaveBounds(mouseEvent);
if (UnderMouseState == UI.UnderMouseState.FirstUnderMouse)
{
OnMouseLeave(mouseEvent);
}
DoMouseMovedOffWidgetRecursive(mouseEvent);
}
}
private void SetUnderMouseStateRecursive()
{
foreach (GuiWidget child in Children)
{
child.SetUnderMouseStateRecursive();
}
underMouseState = UI.UnderMouseState.NotUnderMouse;
}
private void DoMouseMovedOffWidgetRecursive(MouseEventArgs mouseEvent)
{
foreach (GuiWidget child in Children)
{
double childX = mouseEvent.X;
double childY = mouseEvent.Y;
child.ParentToChildTransform.inverse_transform(ref childX, ref childY);
MouseEventArgs childMouseEvent = new MouseEventArgs(mouseEvent, childX, childY);
child.DoMouseMovedOffWidgetRecursive(childMouseEvent);
}
bool needToCallLeaveBounds = underMouseState != UI.UnderMouseState.NotUnderMouse;
bool needToCallLeave = UnderMouseState == UI.UnderMouseState.FirstUnderMouse;
underMouseState = UI.UnderMouseState.NotUnderMouse;
if (needToCallLeave)
{
OnMouseLeave(mouseEvent);
}
if (needToCallLeaveBounds)
{
OnMouseLeaveBounds(mouseEvent);
}
}
private void ClearMouseOverWidget()
{
foreach (GuiWidget child in Children)
{
ClearMouseOverWidget();
}
underMouseState = UnderMouseState.NotUnderMouse;
}
