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/*
* Copyright (c) 2012, Metron, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Metron, Inc. nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL METRON, INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.metsci.glimpse.event.mouse;
import java.util.List;
import com.metsci.glimpse.canvas.GlimpseCanvas;
import com.metsci.glimpse.context.GlimpseTargetStack;
public abstract class MouseWrapperImpl extends MouseWrapper
{
public MouseWrapperImpl( GlimpseCanvas canvas )
{
super( canvas );
}
public void mouseClicked0( I event )
{
// not handled by GlimpseMouseListener, use mousePressed/mouseReleased
}
public void mouseEntered0( I event )
{
if ( event == null ) return;
// save the old hovered stacks
List oldHovered = clearHovered( );
// update hovered stacks
getContainingTargets( event );
// get the new hovered stacks
List newHovered = getHovered( );
// send mouseExited and mouseEntered events based on the old/new hovered stacks
notifyMouseEnteredExited( event, oldHovered, newHovered );
}
public void mouseExited0( I event )
{
if ( event == null ) return;
// save the old hovered stacks
List oldHovered = clearHovered( );
// update hovered stacks
getContainingTargets( event );
// get the new hovered stacks
List newHovered = getHovered( );
// send mouseExited and mouseEntered events based on the old/new hovered stacks
notifyMouseEnteredExited( event, oldHovered, newHovered );
}
public boolean mousePressed0( I event )
{
if ( event == null ) return false;
List list = getContainingTargets( event );
setAllHovered( list );
// stacks with low indices are on top in the layout, and
// have their mouse events generated first
for ( GlimpseTargetStack stack : list )
{
Mouseable mouseTarget = getMouseTarget( stack );
if ( mouseTarget == null ) return false;
GlimpseMouseEvent glimpseEvent = toGlimpseEvent( event, stack );
mouseTarget.mousePressed( glimpseEvent );
if ( glimpseEvent.isHandled( ) ) return true;
}
return false;
}
public boolean mouseReleased0( I event )
{
if ( event == null ) return false;
boolean handled = false;
// always always deliver the mouseUp event regardless of which
// component the mouse event occurred inside
if ( isDragHovered( ) )
{
List hoveredList = getDragHovered( );
for ( GlimpseTargetStack hoveredStack : hoveredList )
{
Mouseable mouseTarget = getMouseTarget( hoveredStack );
GlimpseMouseEvent glimpseEvent = toGlimpseEvent( event, hoveredStack );
if ( mouseTarget != null ) mouseTarget.mouseReleased( glimpseEvent );
if ( glimpseEvent.isHandled( ) )
{
handled = true;
break;
}
}
}
// call getContainingTarget to setHovered correctly
// call after event is sent because we want to send the mouseReleased event
// to the previously hovered component then setHovered to the GlimpseTarget
// currently under the mouse
getContainingTargets( event );
return handled;
}
public boolean mouseDragged0( I event )
{
if ( event == null ) return false;
// save the old hovered stacks
List oldHovered = clearHovered( );
// call getContainingTarget to setHovered correctly
getContainingTargets( event );
// get the new hovered stacks
List newHovered = getHovered( );
// send mouseExited and mouseEntered events based on the old/new hovered stacks
notifyMouseEnteredExited( event, oldHovered, newHovered );
if ( isDragHovered( ) )
{
List hoveredList = getDragHovered( );
for ( GlimpseTargetStack hoveredStack : hoveredList )
{
Mouseable mouseHoveredTarget = getMouseTarget( hoveredStack );
GlimpseMouseEvent glimpseHoveredEvent = toGlimpseEvent( event, hoveredStack );
if ( mouseHoveredTarget != null ) mouseHoveredTarget.mouseMoved( glimpseHoveredEvent );
if ( glimpseHoveredEvent.isHandled( ) ) return true;
}
}
return false;
}
public boolean mouseMoved0( I event )
{
if ( event == null ) return false;
// if the mouse is hovering, recalculate hovered components every event
// isButtonDown check isn't necessary like it is for MouseWrapperSWT.mouseMove(),
// since this event would be a mouseDragged if it was
List oldHovered = clearAllHovered( );
// call getContainingTarget to setHovered correctly
getContainingTargets( event );
// get the new hovered stacks
List newHovered = getHovered( );
// send mouseExited and mouseEntered events based on the old/new hovered stacks
notifyMouseEnteredExited( event, oldHovered, newHovered );
// if we have something hovered, send mouseMoved events
if ( isDragHovered( ) )
{
for ( GlimpseTargetStack hoveredStack : newHovered )
{
Mouseable mouseHoveredTarget = getMouseTarget( hoveredStack );
GlimpseMouseEvent glimpseHoveredEvent = toGlimpseEvent( event, hoveredStack );
if ( mouseHoveredTarget != null ) mouseHoveredTarget.mouseMoved( glimpseHoveredEvent );
if ( glimpseHoveredEvent.isHandled( ) ) return true;
}
}
return false;
}
public boolean mouseWheelMoved0( I event )
{
if ( event == null ) return false;
// stacks with low indices are on top in the layout, and
// have their mouse events generated first
for ( GlimpseTargetStack stack : getContainingTargets( event ) )
{
Mouseable mouseTarget = getMouseTarget( stack );
if ( mouseTarget == null ) return false;
GlimpseMouseEvent glimpseEvent = toGlimpseEventWheel( event, stack );
mouseTarget.mouseWheelMoved( glimpseEvent );
if ( glimpseEvent.isHandled( ) ) return true;
}
return false;
}
}
