/*
* Copyright (c) 2005-2010 Flamingo Kirill Grouchnikov. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Flamingo Kirill Grouchnikov 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 THE COPYRIGHT OWNER OR
* CONTRIBUTORS 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 org.pushingpixels.flamingo.internal.utils;
import java.awt.*;
import java.awt.geom.GeneralPath;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import org.pushingpixels.flamingo.api.common.icon.ResizableIcon;
/**
* Helper implementation of {@link ResizableIcon} that draws a double arrow.
*
* @author Kirill Grouchnikov
*/
public class DoubleArrowResizableIcon implements ResizableIcon {
/**
* Initial dimension.
*/
private Dimension initialDim;
/**
* The width of the rendered image.
*/
protected int width;
/**
* The height of the rendered image.
*/
protected int height;
/**
* Arrow direction. One of {@link SwingConstants#SOUTH},
* {@link SwingConstants#NORTH}, {@link SwingConstants#EAST} or
* {@link SwingConstants#WEST}.
*/
protected int direction;
/**
* Creates a new double arrow resizable icon.
*
* @param initialDim
* Initial icon dimension.
* @param direction
* Arrow direction. Currently only {@link SwingConstants#SOUTH}
* is supported.
*/
public DoubleArrowResizableIcon(Dimension initialDim, int direction) {
this.initialDim = initialDim;
this.width = initialDim.width;
this.height = initialDim.height;
this.direction = direction;
}
/**
* Creates a new double arrow resizable icon.
*
* @param initialDim
* Initial icon dimension.
* @param direction
* Arrow direction. Currently only {@link SwingConstants#SOUTH}
* is supported.
*/
public DoubleArrowResizableIcon(int initialDim, int direction) {
this(new Dimension(initialDim, initialDim), direction);
}
public void revertToOriginalDimension() {
this.width = initialDim.width;
this.height = initialDim.height;
}
@Override
public void setDimension(Dimension newDimension) {
this.width = newDimension.width;
this.height = newDimension.height;
}
@Override
public int getIconHeight() {
return this.height;
}
@Override
public int getIconWidth() {
return this.width;
}
protected boolean toPaintEnabled(Component c) {
return c.isEnabled();
}
@Override
public void paintIcon(Component c, Graphics g, int x, int y) {
Graphics2D graphics = (Graphics2D) g.create();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
Color arrowColor = this.toPaintEnabled(c) ? Color.black : Color.gray;
graphics.setColor(arrowColor);
Stroke stroke = new BasicStroke(this.width / 8.0f,
BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER);
graphics.setStroke(stroke);
graphics.translate(x, y);
GeneralPath gp = new GeneralPath();
int arrowHeight = height / 2;
int arrowWidth = width / 2;
int deltaH = (height + 2) / 3;
int deltaW = (width + 2) / 3;
switch (direction) {
case SwingUtilities.NORTH:
gp.moveTo(0, height - 1);
gp.lineTo((float) 0.5 * (width - 1), height - 1 - arrowHeight);
gp.lineTo(width - 1, height - 1);
gp.moveTo(0, height - 1 - deltaH);
gp.lineTo((float) 0.5 * (width - 1), height - 1 - arrowHeight
- deltaH);
gp.lineTo(width - 1, height - 1 - deltaH);
break;
case SwingUtilities.SOUTH:
gp.moveTo(0, 0);
gp.lineTo((float) 0.5 * (width - 1), arrowHeight);
gp.lineTo(width - 1, 0);
gp.moveTo(0, deltaH);
gp.lineTo((float) 0.5 * (width - 1), arrowHeight + deltaH);
gp.lineTo(width - 1, deltaH);
break;
case SwingUtilities.EAST:
gp.moveTo(0, 0);
gp.lineTo(arrowWidth, (float) 0.5 * (height - 1));
gp.lineTo(0, height - 1);
gp.moveTo(deltaW, 0);
gp.lineTo(arrowWidth + deltaW, (float) 0.5 * (height - 1));
gp.lineTo(deltaW, height - 1);
break;
case SwingUtilities.WEST:
gp.moveTo(width - 1, 0);
gp.lineTo(width - 1 - arrowWidth, (float) 0.5 * (height - 1));
gp.lineTo(width - 1, height - 1);
gp.moveTo(width - 1 - deltaW, 0);
gp.lineTo(width - 1 - arrowWidth - deltaW, (float) 0.5
* (height - 1));
gp.lineTo(width - 1 - deltaW, height - 1);
break;
}
graphics.draw(gp);
graphics.dispose();
}
}