本文整理汇总了C#中dfControl.OnDragEnter方法的典型用法代码示例。如果您正苦于以下问题：C# dfControl.OnDragEnter方法的具体用法？C# dfControl.OnDragEnter怎么用？C# dfControl.OnDragEnter使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类dfControl的用法示例。
在下文中一共展示了dfControl.OnDragEnter方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ProcessInput
public void ProcessInput( dfInputManager manager, IInputAdapter adapter, Ray ray, dfControl control, bool retainFocusSetting )
{
var position = adapter.GetMousePosition();
buttonsDown = dfMouseButtons.None;
buttonsReleased = dfMouseButtons.None;
buttonsPressed = dfMouseButtons.None;
getMouseButtonInfo( adapter, ref buttonsDown, ref buttonsReleased, ref buttonsPressed );
float scroll = adapter.GetAxis( scrollAxisName );
if( !Mathf.Approximately( scroll, 0f ) )
{
// By default the mouse wheel is reported in increments of 0.1f,
// which is just a useless number for UI, but this can be changed
// by the user in the Unity Input Manager. We'll assume that if the
// number reported is less than 1 then it is probably safe to
// assume that we can massage it for UI purposes.
scroll = Mathf.Sign( scroll ) * Mathf.Max( 1, Mathf.Abs( scroll ) );
}
mouseMoveDelta = position - lastPosition;
lastPosition = position;
#region Drag and drop
if( dragState == dfDragDropState.Dragging )
{
if( buttonsReleased == dfMouseButtons.None )
{
// Do nothing if the drag operation is over the source control
// and no buttons have been released.
if( control == activeControl )
return;
if( control != lastDragControl )
{
if( lastDragControl != null )
{
var dragArgs = new dfDragEventArgs( lastDragControl, dragState, dragData, ray, position );
lastDragControl.OnDragLeave( dragArgs );
}
if( control != null )
{
var dragArgs = new dfDragEventArgs( control, dragState, dragData, ray, position );
control.OnDragEnter( dragArgs );
}
lastDragControl = control;
return;
}
if( control != null )
{
if( mouseMoveDelta.magnitude > 1.0f )
{
var dragArgs = new dfDragEventArgs( control, dragState, dragData, ray, position );
control.OnDragOver( dragArgs );
}
}
return;
}
if( control != null && control != activeControl )
{
var dragArgs = new dfDragEventArgs( control, dfDragDropState.Dragging, dragData, ray, position );
control.OnDragDrop( dragArgs );
// If there was no event consumer, or if the event consumer did not
// change the state from Dragging (which is not a valid state for
// a drop event) then just cancel the operation
if( !dragArgs.Used || dragArgs.State == dfDragDropState.Dragging )
dragArgs.State = dfDragDropState.Cancelled;
dragArgs = new dfDragEventArgs( activeControl, dragArgs.State, dragArgs.Data, ray, position );
dragArgs.Target = control;
activeControl.OnDragEnd( dragArgs );
}
else
{
var cancelState = ( control == null ) ? dfDragDropState.CancelledNoTarget : dfDragDropState.Cancelled;
var dragArgs = new dfDragEventArgs( activeControl, cancelState, dragData, ray, position );
activeControl.OnDragEnd( dragArgs );
}
dragState = dfDragDropState.None;
lastDragControl = null;
//.........这里部分代码省略.........