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Better mouse input handling

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This commit is contained in:
Paul Chote
2010-07-12 19:47:51 +12:00
parent bd096436d9
commit e23ee6d892
9 changed files with 126 additions and 139 deletions
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79
OpenRA.Game/Widgets/Widget.cs
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@@ -150,34 +150,73 @@ namespace OpenRA.Widgets
.Select(c => c.GetEventBounds())
.Aggregate(RenderBounds, Rectangle.Union);
}
public virtual bool HandleInput(MouseInput mi)
public bool Focused { get { return Chrome.selectedWidget == this; } }
public virtual bool TakeFocus(MouseInput mi)
{
if (Focused)
return true;
if (Chrome.selectedWidget != null && !Chrome.selectedWidget.LoseFocus(mi))
return false;
Chrome.selectedWidget = this;
return true;
}
// Remove focus from this widget; return false if you don't want to give it up
public virtual bool LoseFocus(MouseInput mi)
{
if (Chrome.selectedWidget == this)
Chrome.selectedWidget = null;
return true;
}
public virtual bool HandleInput(MouseInput mi) { return false; }
public bool HandleMouseInputOuter(MouseInput mi)
{
// Are we able to handle this event?
if (!IsVisible() || !GetEventBounds().Contains(mi.Location.X,mi.Location.Y))
if (!(Focused || (IsVisible() && GetEventBounds().Contains(mi.Location.X,mi.Location.Y))))
return false;
// Send the event to the deepest children first and bubble up if unhandled
foreach (var child in Children)
if (child.HandleMouseInputOuter(mi))
return true;
// Do any widgety behavior (button click etc)
// Return false if it can't handle any user actions
if (!HandleInput(mi))
return false;
// Apply any special logic added by delegates; they return true if they caught the input
if (mi.Event == MouseInputEvent.Down && OnMouseDown(mi)) return true;
if (mi.Event == MouseInputEvent.Up && OnMouseUp(mi)) return true;
if (mi.Event == MouseInputEvent.Move && OnMouseMove(mi)) return true;
return true;
}
public virtual bool HandleKeyPress(System.Windows.Forms.KeyPressEventArgs e, Modifiers modifiers) { return false; }
public virtual bool HandleKeyPressOuter(System.Windows.Forms.KeyPressEventArgs e, Modifiers modifiers)
{
if (!IsVisible())
return false;
// Can any of our children handle this?
foreach (var child in Children)
if (child.HandleInput(mi))
if (child.HandleKeyPressOuter(e, modifiers))
return true;
if (mi.Event == MouseInputEvent.Down) return OnMouseDown(mi);
if (mi.Event == MouseInputEvent.Up) return OnMouseUp(mi);
if (mi.Event == MouseInputEvent.Move) return OnMouseMove(mi);
throw new InvalidOperationException("Impossible");
}
public virtual bool HandleKeyPress(System.Windows.Forms.KeyPressEventArgs e, Modifiers modifiers)
{
// Can any of our children handle this?
foreach (var child in Children)
if (child.HandleKeyPress(e, modifiers))
return true;
// Have we been assigned an action?
return OnKeyPress(e,modifiers);
// Do any widgety behavior (enter text etc)
var handled = HandleKeyPress(e,modifiers);
// Apply any special logic added by delegates; they return true if they caught the input
if (OnKeyPress(e,modifiers)) return true;
return handled;
}
public abstract void DrawInner( World world );