Package com.intellij.ui

Class MouseDragHelper

java.lang.Object

java.awt.event.MouseAdapter

com.intellij.ui.MouseDragHelper

All Implemented Interfaces:

Weighted, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.awt.KeyEventDispatcher, java.util.EventListener

public abstract class MouseDragHelper
extends java.awt.event.MouseAdapter
implements java.awt.event.MouseMotionListener, java.awt.KeyEventDispatcher, Weighted

Field Summary

Fields

Modifier and Type	Field and Description
static int	DRAG_START_DEADZONE
protected java.awt.Point	myPressedOnScreenPoint

Constructor Summary

Constructors

Constructor and Description
MouseDragHelper(Disposable parent, javax.swing.JComponent dragComponent)

Method Summary

Modifier and Type	Method and Description
protected boolean	canStartDragging(javax.swing.JComponent dragComponent, java.awt.Point dragComponentPoint)
static boolean	checkModifiers(java.awt.event.InputEvent event)
boolean	dispatchKeyEvent(java.awt.event.KeyEvent e)
double	getWeight()
protected boolean	isDragJustStarted()
protected boolean	isDragOut(java.awt.event.MouseEvent event, java.awt.Point dragToScreenPoint, java.awt.Point startScreenPoint)
void	mouseDragged(java.awt.event.MouseEvent e)
void	mouseMoved(java.awt.event.MouseEvent e)
void	mousePressed(java.awt.event.MouseEvent e)
void	mouseReleased(java.awt.event.MouseEvent e)
protected abstract void	processDrag(java.awt.event.MouseEvent event, java.awt.Point dragToScreenPoint, java.awt.Point startScreenPoint)
protected void	processDragCancel()
protected void	processDragFinish(java.awt.event.MouseEvent event, boolean willDragOutStart)
protected void	processDragOut(java.awt.event.MouseEvent event, java.awt.Point dragToScreenPoint, java.awt.Point startScreenPoint, boolean justStarted)
protected void	processDragOutCancel()
protected void	processDragOutFinish(java.awt.event.MouseEvent event)
protected void	processMousePressed(java.awt.event.MouseEvent event)
void	start()
void	stop()

Methods inherited from class java.awt.event.MouseAdapter

mouseClicked, mouseEntered, mouseExited, mouseWheelMoved

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DRAG_START_DEADZONE

public static final int DRAG_START_DEADZONE

See Also:

Constant Field Values

myPressedOnScreenPoint

protected java.awt.Point myPressedOnScreenPoint

Constructor Detail

MouseDragHelper

public MouseDragHelper(Disposable parent,
                       javax.swing.JComponent dragComponent)

Method Detail

checkModifiers

public static boolean checkModifiers(java.awt.event.InputEvent event)

Returns:

false if Settings -> Appearance -> Drag-n-Drop with ALT pressed only is selected but event doesn't have ALT modifier

start

public void start()

stop

public void stop()

getWeight

public double getWeight()

Specified by:

getWeight in interface Weighted

mousePressed

public void mousePressed(java.awt.event.MouseEvent e)

Specified by:

mousePressed in interface java.awt.event.MouseListener

Overrides:

mousePressed in class java.awt.event.MouseAdapter

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent e)

Specified by:

mouseReleased in interface java.awt.event.MouseListener

Overrides:

mouseReleased in class java.awt.event.MouseAdapter

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent e)

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

Overrides:

mouseDragged in class java.awt.event.MouseAdapter

canStartDragging

protected boolean canStartDragging(javax.swing.JComponent dragComponent,
                                   java.awt.Point dragComponentPoint)

processMousePressed

protected void processMousePressed(java.awt.event.MouseEvent event)

processDragCancel

protected void processDragCancel()

processDragFinish

protected void processDragFinish(java.awt.event.MouseEvent event,
                                 boolean willDragOutStart)

processDragOutFinish

protected void processDragOutFinish(java.awt.event.MouseEvent event)

processDragOutCancel

protected void processDragOutCancel()

isDragJustStarted

protected final boolean isDragJustStarted()

processDrag

protected abstract void processDrag(java.awt.event.MouseEvent event,
                                    java.awt.Point dragToScreenPoint,
                                    java.awt.Point startScreenPoint)

isDragOut

protected boolean isDragOut(java.awt.event.MouseEvent event,
                            java.awt.Point dragToScreenPoint,
                            java.awt.Point startScreenPoint)

processDragOut

protected void processDragOut(java.awt.event.MouseEvent event,
                              java.awt.Point dragToScreenPoint,
                              java.awt.Point startScreenPoint,
                              boolean justStarted)

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent e)

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener

Overrides:

mouseMoved in class java.awt.event.MouseAdapter

dispatchKeyEvent

public boolean dispatchKeyEvent(java.awt.event.KeyEvent e)

Specified by:

dispatchKeyEvent in interface java.awt.KeyEventDispatcher