Class PreviewPanel.ViewportScroller

  • All Implemented Interfaces:
    java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.util.EventListener
    Enclosing class:
    PreviewPanel

    private class PreviewPanel.ViewportScroller
    extends java.lang.Object
    implements java.awt.event.MouseListener, java.awt.event.MouseMotionListener
    Allows any mouse drag on the page area to scroll the display window.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private int startPosX
      Starting position of a mouse drag - X co-ordinate
      private int startPosY
      Starting position of a mouse drag - Y co-ordinate
      private javax.swing.JViewport viewport
      The viewport to be scrolled
    • Constructor Summary

      Constructors 
      Constructor Description
      ViewportScroller​(javax.swing.JViewport vp)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void mouseClicked​(java.awt.event.MouseEvent e)  
      void mouseDragged​(java.awt.event.MouseEvent e)  
      void mouseEntered​(java.awt.event.MouseEvent e)  
      void mouseExited​(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)  
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • viewport

        private final javax.swing.JViewport viewport
        The viewport to be scrolled
      • startPosX

        private int startPosX
        Starting position of a mouse drag - X co-ordinate
      • startPosY

        private int startPosY
        Starting position of a mouse drag - Y co-ordinate
    • Constructor Detail

      • ViewportScroller

        ViewportScroller​(javax.swing.JViewport vp)
    • Method Detail

      • mouseDragged

        public void mouseDragged​(java.awt.event.MouseEvent e)
        Specified by:
        mouseDragged in interface java.awt.event.MouseMotionListener
      • mouseMoved

        public void mouseMoved​(java.awt.event.MouseEvent e)
        Specified by:
        mouseMoved in interface java.awt.event.MouseMotionListener
      • mousePressed

        public void mousePressed​(java.awt.event.MouseEvent e)
        Specified by:
        mousePressed in interface java.awt.event.MouseListener
      • mouseExited

        public void mouseExited​(java.awt.event.MouseEvent e)
        Specified by:
        mouseExited in interface java.awt.event.MouseListener
      • mouseEntered

        public void mouseEntered​(java.awt.event.MouseEvent e)
        Specified by:
        mouseEntered in interface java.awt.event.MouseListener
      • mouseClicked

        public void mouseClicked​(java.awt.event.MouseEvent e)
        Specified by:
        mouseClicked in interface java.awt.event.MouseListener
      • mouseReleased

        public void mouseReleased​(java.awt.event.MouseEvent e)
        Specified by:
        mouseReleased in interface java.awt.event.MouseListener