internal virtual void Invoke(GuiControl control, GuiComponentEvent eventArg)
{
//first, we invoke virtual function
OnSolveEvent(control, eventArg);
//second, we invoke solver
Solver?.Invoke(control, eventArg);
}
protected internal override void Excute(List <GameObject> passedGameObjectList)
{
//solve key board event, we need process all objects
//it may trigger the input event for gui control
void keyBoardSolver(List <GameObject> gameObjects, KeyBoardEvent eventArg, ref GuiComponentEventProperty eventProperty)
{
//only focus control can run input event
//if there are no control get focus, we do not process the event
if (eventProperty.FocusControl == null)
{
return;
}
//get logic component
var logicComponent = eventProperty.FocusControl.GetComponent <LogicGuiComponent>();
//if we remove the focus event part from logic component, we need reset the focus control in the event property
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Focus))
{
//if we add the input event part to logic component and the key code is down, we invoke event part
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Input) == true && eventArg.IsDown == true)
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.Input).Invoke(eventProperty.FocusControl,
new GuiComponentInputEvent(eventArg.Time, eventArg.KeyCode));
}
}
else
{
eventProperty.FocusControl = null;
}
}
//solve mouse click event, we need process all objects
//it may trigger the drag, focus, click event for gui control
void mouseClickSolver(List <GameObject> gameObjects, MouseClickEvent eventArg, ref GuiComponentEventProperty eventProperty)
{
//when mouse button up, we need release the capture control and invoke click event
if (eventArg.IsDown == false)
{
var button = (uint)eventArg.Button;
//we have the control
if (eventProperty.CaptureControl[button] != null)
{
var logicComponent = eventProperty.CaptureControl[button].GetComponent <LogicGuiComponent>();
//invoke event
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.MouseClick))
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.MouseClick).
Invoke(eventProperty.CaptureControl[button],
new GuiComponentMouseClickEvent(eventArg.Time, eventArg.Position, eventArg.Button, eventArg.IsDown));
}
eventProperty.CaptureControl[button] = null;
}
}
//stack to maintain the path of game object's tree from node to root
//matrix is the invert transform from root to node
Stack <Tuple <GameObject, Matrix4x4> > ancestors = new Stack <Tuple <GameObject, Matrix4x4> >();
//add virtual root to stack
ancestors.Push(new Tuple <GameObject, Matrix4x4>(null, Matrix4x4.Identity));
GuiControl newFocusControl = null;
GuiControl newDragControl = null;
GuiControl newCaptureControl = null;
foreach (var gameObject in gameObjects)
{
//maintain the elments in the stack are ancestors from root to node(with deep order, first element is root)
//because the list of game objects is the dfs order of tree
while (ancestors.Count != 1 && ancestors.Peek().Item1 != gameObject.Parent)
{
ancestors.Pop();
}
//get the component of gui control
var logicComponent = gameObject.GetComponent <LogicGuiComponent>();
var visualComponent = gameObject.GetComponent <VisualGuiComponent>();
var transformComponent = gameObject.GetComponent <TransformGuiComponent>();
var invertTransform = Matrix4x4.Identity;
//invert the transform of game object
Matrix4x4.Invert(transformComponent.Transform, out invertTransform);
//get the invert transform from root to node
invertTransform = ancestors.Peek().Item2 *invertTransform;
//compute the mouse position in the local space of gui control
var mousePosition = Vector2.Transform(new Vector2(eventArg.Position.X, eventArg.Position.Y), invertTransform);
//test if the mouse position is in the gui control
var isContained = visualComponent.Shape.Contain(new Position <float>(mousePosition.X, mousePosition.Y));
//for solving focus event, we need to discuss the left button status
if (eventArg.Button == MouseButton.Left)
{
//if left button is down and the control contains the mouse cursor
//we find the new focus control and new drag control
if (eventArg.IsDown == true && isContained == true)
{
newFocusControl = gameObject as GuiControl;
//if we are not dragging control, we can capture new drag control
//when left button is down and control contains the mouse cursor
if (eventProperty.DragControl == null)
{
newDragControl = gameObject as GuiControl;
}
}
//when we click the empty place, the focus will be lost
if (eventArg.IsDown == true && isContained == false && eventProperty.FocusControl == gameObject)
{
eventProperty.FocusControl = null;
//update the component focus status
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Focus))
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.Focus).
Invoke(gameObject as GuiControl, new GuiComponentFocusEvent(eventArg.Time, false));
}
}
//when we finish drag control
if (eventArg.IsDown == false && isContained == true && eventProperty.DragControl == gameObject)
{
eventProperty.DragControl = null;
//if game object has the drag event part
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Drag))
{
//update the component drag status
logicComponent.EventParts.Get(GuiComponentSupportEvent.Drag).
Invoke(gameObject as GuiControl, new GuiComponentDragEvent(eventArg.Time, false));
}
}
}
//mouse down and it is in the control, record the capture control
if (eventArg.IsDown && isContained)
{
newCaptureControl = gameObject as GuiControl;
}
//update the ancestors stack
ancestors.Push(new Tuple <GameObject, Matrix4x4>(gameObject, invertTransform));
}
//update the new focus control status and invoke event
//disable the old focus control status and invoke event
if (newFocusControl != null)
{
var oldFocusLogicComponent = eventProperty.FocusControl?.GetComponent <LogicGuiComponent>();
//disable old control
if (oldFocusLogicComponent != null && oldFocusLogicComponent.EventParts.Contain(GuiComponentSupportEvent.Focus))
{
//get focus event part and invoke the event
oldFocusLogicComponent.EventParts.Get(GuiComponentSupportEvent.Focus).
Invoke(eventProperty.FocusControl, new GuiComponentFocusEvent(eventArg.Time, false));
}
//update new control, if the new contorl does not have focus event part, we will miss focus
//else we invoke the event for focus event part
var logicComponent = newFocusControl.GetComponent <LogicGuiComponent>();
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Focus))
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.Focus)
.Invoke(newFocusControl, new GuiComponentFocusEvent(eventArg.Time, true));
eventProperty.FocusControl = newFocusControl;
}
else
{
eventProperty.FocusControl = null;
}
}
//update the new drag control status and invoke event
if (newDragControl != null)
{
var logicComponent = newDragControl.GetComponent <LogicGuiComponent>();
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Drag))
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.Drag).
Invoke(newDragControl, new GuiComponentDragEvent(eventArg.Time, true));
eventProperty.DragControl = newDragControl;
}
else
{
eventProperty.DragControl = null;
}
}
//update the new capture control status and invoke event
if (newCaptureControl != null)
{
var button = (uint)eventArg.Button;
var logicComponent = newCaptureControl.GetComponent <LogicGuiComponent>();
//if the old capture control is not null, means we do not release the button before we press
Utility.Assert(eventProperty.CaptureControl[button] == null);
eventProperty.CaptureControl[button] = newCaptureControl;
//invoke the event
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.MouseClick))
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.MouseClick).
Invoke(newCaptureControl, new GuiComponentMouseClickEvent(
eventArg.Time, eventArg.Position, eventArg.Button, eventArg.IsDown));
}
}
}
//solve mouse wheel event, we need process all objects
//it may trigger the wheel event
void mouseWheelSolver(List <GameObject> gameObjects, MouseWheelEvent eventArg, ref GuiComponentEventProperty eventProperty)
{
//stack to maintain the path of game object's tree from node to root
//matrix is the invert transform from root to node
Stack <Tuple <GameObject, Matrix4x4> > ancestors = new Stack <Tuple <GameObject, Matrix4x4> >();
//add virtual root to stack
ancestors.Push(new Tuple <GameObject, Matrix4x4>(null, Matrix4x4.Identity));
foreach (var gameObject in gameObjects)
{
//maintain the elments in the stack are ancestors from root to node(with deep order, first element is root)
//because the list of game objects is the dfs order of tree
while (ancestors.Count != 1 && ancestors.Peek().Item1 != gameObject.Parent)
{
ancestors.Pop();
}
//get the component of gui control
var logicComponent = gameObject.GetComponent <LogicGuiComponent>();
var visualComponent = gameObject.GetComponent <VisualGuiComponent>();
var transformComponent = gameObject.GetComponent <TransformGuiComponent>();
var invertTransform = Matrix4x4.Identity;
//invert the transform of game object
Matrix4x4.Invert(transformComponent.Transform, out invertTransform);
//get the invert transform from root to node
invertTransform = ancestors.Peek().Item2 *invertTransform;
//compute the mouse position in the local space of gui control
var mousePosition = Vector2.Transform(new Vector2(eventArg.Position.X, eventArg.Position.Y), invertTransform);
//if the game object has mouse wheel
//invoke the wheel event for game object mouse position is contained
if (visualComponent.Shape.Contain(new Position <float>(mousePosition.X, mousePosition.Y)) &&
logicComponent.EventParts.Contain(GuiComponentSupportEvent.MouseWheel))
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.MouseWheel).Invoke(gameObject as GuiControl,
new GuiComponentMouseWheelEvent(eventArg.Time, eventArg.Position, eventArg.Offset));
}
//update the ancestors stack
ancestors.Push(new Tuple <GameObject, Matrix4x4>(gameObject, invertTransform));
}
}
//solve mouse move event, we need process all objects
//it may trigger the drag, move, hover
void mouseMoveSolver(List <GameObject> gameObjects, MouseMoveEvent eventArg, ref GuiComponentEventProperty eventProperty)
{
//when we move the mouse, the control are dragging should be moving
if (eventProperty.DragControl != null)
{
var logicComponent = eventProperty.DragControl.GetComponent <LogicGuiComponent>();
//if the control has drag event part, we move it
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Drag))
{
var transformComponent = eventProperty.DragControl.GetComponent <TransformGuiComponent>();
transformComponent.Position = new Position <float>(
transformComponent.Position.X + eventArg.Position.X - eventProperty.MousePosition.X,
transformComponent.Position.Y + eventArg.Position.Y - eventProperty.MousePosition.Y);
}
else
{
eventProperty.DragControl = null;
}
}
//stack to maintain the path of game object's tree from node to root
//matrix is the invert transform from root to node
//bool is the visable status sum(operator &) from root to node
Stack <Tuple <GameObject, Matrix4x4> > ancestors = new Stack <Tuple <GameObject, Matrix4x4> >();
//add virtual root to stack
ancestors.Push(new Tuple <GameObject, Matrix4x4>(null, Matrix4x4.Identity));
foreach (var gameObject in gameObjects)
{
//maintain the elments in the stack are ancestors from root to node(with deep order, first element is root)
//because the list of game objects is the dfs order of tree
while (ancestors.Count != 1 && ancestors.Peek().Item1 != gameObject.Parent)
{
ancestors.Pop();
}
//get the component of gui control
var logicComponent = gameObject.GetComponent <LogicGuiComponent>();
var visualComponent = gameObject.GetComponent <VisualGuiComponent>();
var transformComponent = gameObject.GetComponent <TransformGuiComponent>();
var invertTransform = Matrix4x4.Identity;
//invert the transform of game object
Matrix4x4.Invert(transformComponent.Transform, out invertTransform);
//get the invert transform from root to node
invertTransform = ancestors.Peek().Item2 *invertTransform;
//compute the mouse position in the local space of gui control
var mousePosition = Vector2.Transform(new Vector2(eventArg.Position.X, eventArg.Position.Y), invertTransform);
//test if the mouse position is in the gui control
var isContained = visualComponent.Shape.Contain(new Position <float>(mousePosition.X, mousePosition.Y));
//if we has mouse move event part
//invoke the move event for game object when mouse position is contained
if (isContained == true && logicComponent.EventParts.Contain(GuiComponentSupportEvent.MouseMove))
{
logicComponent.EventParts.Get(GuiComponentSupportEvent.MouseMove).Invoke(gameObject as GuiControl,
new GuiComponentMouseMoveEvent(eventArg.Time, eventArg.Position));
}
//if we have mouse hover event part
//solve the hover event, we only sender hover event when the hover is changed
if (logicComponent.EventParts.Contain(GuiComponentSupportEvent.Hover))
{
//get mouse hover event part
var hoverPart = logicComponent.EventParts.Get(GuiComponentSupportEvent.Hover) as GuiComponentHoverEventPart;
//hover is true and isContained is false(leave = false)
//hover is false and isContained is true(enter = true)
if (hoverPart.Hover != isContained)
{
//invoke hover event, the hover status is equal the "isContained"
hoverPart.Invoke(gameObject as GuiControl, new GuiComponentHoverEvent(eventArg.Time, isContained));
}
}
//update the ancestors stack
ancestors.Push(new Tuple <GameObject, Matrix4x4>(gameObject, invertTransform));
}
//update event property
eventProperty.MousePosition = eventArg.Position;
}
//logic component solver
while (EventCount != 0)
{
switch (GetEvent(true))
{
case KeyBoardEvent keyBoard: keyBoardSolver(passedGameObjectList, keyBoard, ref mComponentEventProperty); break;
case MouseClickEvent mouseClick: mouseClickSolver(passedGameObjectList, mouseClick, ref mComponentEventProperty); break;
case MouseWheelEvent mouseWheel: mouseWheelSolver(passedGameObjectList, mouseWheel, ref mComponentEventProperty); break;
case MouseMoveEvent mouseMove: mouseMoveSolver(passedGameObjectList, mouseMove, ref mComponentEventProperty); break;
default: break;
}
}
}
internal override void Invoke(GuiControl control, GuiComponentEvent eventArg)
{
mDrag = (eventArg as GuiComponentDragEvent).Drag;
base.Invoke(control, eventArg);
}
internal override void Invoke(GuiControl control, GuiComponentEvent eventArg)
{
mHover = (eventArg as GuiComponentHoverEvent).Hover;
base.Invoke(control, eventArg);
}
internal override void Invoke(GuiControl control, GuiComponentEvent eventArg)
{
mFocus = (eventArg as GuiComponentFocusEvent).Focus;
base.Invoke(control, eventArg);
}
protected virtual void OnSolveEvent(GuiControl control, GuiComponentEvent eventArg)
{
}