/* File: VerticalSliceSelectionRenderer.java * Copyright (C) 2002-2003 The University of Iowa * Created by: Jeremy Faden <jbf@space.physics.uiowa.edu> * Jessica Swanner <jessica@space.physics.uiowa.edu> * Edward E. West <eew@space.physics.uiowa.edu> * * This file is part of the das2 library. * * das2 is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package org.das2.event; import org.das2.graph.DasCanvasComponent; import org.das2.graph.DasRow; import java.awt.*; /** * * @author eew */ public class VerticalSliceSelectionRenderer implements DragRenderer { DasCanvasComponent parent; Rectangle dirtyBounds; /** Creates a new instance of VerticalLineSelectionRenderer */ public VerticalSliceSelectionRenderer(DasCanvasComponent parent) { this.parent= parent; dirtyBounds= new Rectangle(); } private void drawCrossHair(Graphics g0, Point p) { Graphics g= g0.create(); g.setColor(new Color(0,0,0)); g.setXORMode(Color.white); DasRow row= parent.getRow(); g.drawLine( p.x, row.getDMinimum(), p.x, row.getDMaximum() ); g.dispose(); } public Rectangle[] renderDrag(Graphics g, Point p1, Point p2) { drawCrossHair(g,p2); //g.drawLine(p2.x, 0, p2.x, parent.getHeight()); dirtyBounds.setRect(p2.x,0,1,parent.getHeight()); return new Rectangle[] { dirtyBounds }; } public MouseDragEvent getMouseDragEvent(Object o,Point p1,Point p2,boolean isModified) { return null; } public void clear(Graphics g) { parent.paintImmediately(dirtyBounds); } public boolean isPointSelection() { return true; } public boolean isUpdatingDragSelection() { return false; } }