Examples of ar.util.HasViewTransform

ar.util.HasViewTransform
Interface to indicate that there is a view transform associated with this object.

    /**
     * @see java.awt.event.MouseMotionListener#mouseDragged(java.awt.event.MouseEvent)
     */
    @Override
  public void mouseDragged(MouseEvent e) {
      HasViewTransform canvas = (HasViewTransform) e.getComponent();
      JComponent component = (JComponent) e.getComponent();
        if (buttonEquals(e, ZOOM_BUTTON) ) {
            int y = e.getY();
            int dy = y-yLast;
            double zoom = 1 + ((double)dy) / 100;

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        if (buttonEquals(e, ZOOM_BUTTON) || buttonEquals(e, PAN_BUTTON)) {
            e.getComponent().setCursor(Cursor.getDefaultCursor());
        } 
        
        if (buttonEquals(e, ZOOM_BUTTON)) {
          HasViewTransform canvas = (HasViewTransform) e.getComponent();
          canvas.viewTransform(canvas.viewTransform(), false);
        }
    }

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    }


  @Override
  public void mouseClicked(MouseEvent e) { 
    if (e.getClickCount() == 2) {
        HasViewTransform canvas = (HasViewTransform) e.getComponent();
      canvas.zoomFit();
    }
  }

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   * When the '-' key is pressed, halves the current zoom.
   * When the 'z' key is pressed, does a zoom fit.
   */
  public void keyTyped(KeyEvent e) {
    char c = e.getKeyChar();
    HasViewTransform canvas = (HasViewTransform) e.getComponent();
    JComponent comp = (JComponent) e.getComponent();
    AffineTransform vt = canvas.viewTransform();


    if (c == 'c' || c == 'C') {
      Rectangle vb = comp.getBounds();
      Rectangle2D db = canvas.dataBounds();


      double xmargin = vb.width/vt.getScaleX()-db.getWidth();
      double ymargin = vb.height/vt.getScaleY()-db.getHeight();
      double tx = db.getMinX()-(xmargin/2);
      double ty = db.getMinY()-(ymargin/2);
            
      AffineTransform t = AffineTransform.getScaleInstance(vt.getScaleX(), vt.getScaleY());
      t.translate(-tx,-ty);
      canvas.viewTransform(t, false);
    } else if (c == '+' || c == '=') {
      vt.scale(2, 2);
      canvas.viewTransform(vt, false);
    } else if (c == '-' || c == '_') {
      vt.scale(.5,.5);
      canvas.viewTransform(vt, false);
    } else if (c == 'z' || c == 'Z') {
      canvas.zoomFit();
    }
  }

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Related Classes of ar.util.HasViewTransform

ar.app.util.ZoomPanHandler

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