/*
* Copyright (c) 2009 Kathryn Huxtable and Kenneth Orr.
*
* This file is part of the SeaGlass Pluggable Look and Feel.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* $Id$
*/
package com.seaglasslookandfeel.painter;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.geom.Rectangle2D;
import javax.swing.JComponent;
import com.seaglasslookandfeel.painter.util.ShapeGenerator.CornerSize;
/**
* Search field icon implementation.
*/
public final class TabbedPaneTabCloseButtonPainter extends AbstractRegionPainter {
/**
* Control state.
*/
public static enum Which {
DISABLED, ENABLED, MOUSEOVER, FOCUSED, PRESSED,
}
private Color borderMouseOver = decodeColor("seaGlassTabbedPaneTabCloseBorderBase", 0f, 0f, 0f, -170);
private Color borderFocused = decodeColor("seaGlassTabbedPaneTabCloseBorderBase", 0f, 0f, 0f, -100);
private Color borderPressed = decodeColor("seaGlassTabbedPaneTabCloseBorderBase", 0f, 0f, 0f, -40);
private Color graphicInnerShadow1 = decodeColor("seaGlassTabbedPaneTabCloseGraphicInnerShadowBase", 0f, 0f, 0f, -130);
private Color graphicInnerShadow2 = decodeColor("seaGlassTabbedPaneTabCloseGraphicInnerShadowBase", 0f, 0f, 0f, -170);
private Color graphicInnerShadow3 = decodeColor("seaGlassTabbedPaneTabCloseGraphicInnerShadowBase", 0f, 0f, 0f, -190);
private Color graphicInnerShadow4 = decodeColor("seaGlassTabbedPaneTabCloseGraphicInnerShadowBase", 0f, 0f, 0f, -150);
private Color graphicBase = decodeColor("seaGlassTabbedPaneTabCloseGraphicBase");
private Color graphicDropShadow1 = decodeColor("seaGlassTabbedPaneTabCloseGraphicDropShadowBase", 0f, 0f, 0f, -230);
private Color graphicDropShadow2 = decodeColor("seaGlassTabbedPaneTabCloseGraphicDropShadowBase", 0f, 0f, 0f, -240);
private Color graphicDropShadow3 = decodeColor("seaGlassTabbedPaneTabCloseGraphicDropShadowBase", 0f, 0f, 0f, -240);
private Color graphicDropShadow4 = decodeColor("seaGlassTabbedPaneTabCloseGraphicDropShadowBase", 0f, 0f, 0f, -230);
private Which state;
private PaintContext ctx;
/**
* Creates a new TabbedPaneTabCloseButtonPainter object.
*
* @param state the control state to paint.
*/
public TabbedPaneTabCloseButtonPainter(Which state) {
super();
this.state = state;
this.ctx = new PaintContext(AbstractRegionPainter.PaintContext.CacheMode.FIXED_SIZES);
}
/**
* {@inheritDoc}
*/
protected void doPaint(Graphics2D g, JComponent c, int width, int height, Object[] extendedCacheKeys) {
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
switch (state) {
case ENABLED:
drawEnabledGraphic(g, width, height);
break;
case MOUSEOVER:
drawBorder(g, width, height, borderMouseOver, 0.4f);
drawOverlayGraphic(g, width, height);
break;
case FOCUSED:
drawBorder(g, width, height, borderFocused, 0.4f);
drawOverlayGraphic(g, width, height);
break;
case PRESSED:
drawBorder(g, width, height, borderPressed, 0.5f);
drawOverlayGraphic(g, width, height);
break;
}
}
/**
* {@inheritDoc}
*/
protected PaintContext getPaintContext() {
return ctx;
}
/**
* Draw a border around the graphic.
*
* @param g the Graphic context.
* @param width the width of the border.
* @param height the height of the border.
* @param color the color of the border.
* @param size the spread of the border from outside in, expressed as a
* percentage of the height.
*/
private void drawBorder(Graphics2D g, int width, int height, Color color, float size) {
int max = (int) (Math.min((height - 2) * size, height / 2.0f) + 0.5);
int alphaDelta = color.getAlpha() / max;
for (int i = 0; i < max; i++) {
Shape s = shapeGenerator.createRoundRectangle(i, i, width - 2 * i - 1, height - 2 * i - 1, CornerSize.CHECKBOX_INTERIOR);
Color newColor = new Color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha() - i * alphaDelta);
g.setPaint(newColor);
g.draw(s);
}
}
/**
* Draw the "close" graphic for the simple enabled state.
*
* @param g the Graphic context.
* @param width the width of the graphic.
* @param height the height of the graphic.
*/
private void drawEnabledGraphic(Graphics2D g, int width, int height) {
Shape s = shapeGenerator.createTabCloseIcon(2, 2, width - 4, height - 4);
g.setPaint(createGraphicInnerShadowGradient(s));
g.fill(s);
}
/**
* Draw the "close" graphic for a state where it overlays a border.
*
* @param g the Graphic context.
* @param width the width of the graphic.
* @param height the height of the graphic.
*/
private void drawOverlayGraphic(Graphics2D g, int width, int height) {
Shape s = shapeGenerator.createTabCloseIcon(2, 2, width - 4, height - 4);
g.setPaint(graphicBase);
g.fill(s);
s = shapeGenerator.createTabCloseIcon(2, 3, width - 4, height - 4);
g.setPaint(createGraphicDropShadowGradient(s));
Shape oldClip = g.getClip();
g.setClip(2, 3, width - 4, height - 4);
g.fill(s);
g.setClip(oldClip);
}
/**
* Create the gradient for the "x" inner shadow.
*
* @param s the Shape for the gradient.
*
* @return the gradient paint.
*/
private Paint createGraphicInnerShadowGradient(Shape s) {
Rectangle2D b = s.getBounds2D();
float midX = (float) b.getCenterX();
float y1 = (float) b.getMinY();
float y2 = (float) b.getMaxY();
return createGradient(midX, y1, midX, y2, new float[] { 0f, 0.43f, 0.57f, 1f },
new Color[] { graphicInnerShadow1, graphicInnerShadow2, graphicInnerShadow3, graphicInnerShadow4 });
}
/**
* Create the gradient for the "x" drop shadow.
*
* @param s the Shape for the gradient.
*
* @return the gradient paint.
*/
private Paint createGraphicDropShadowGradient(Shape s) {
Rectangle2D b = s.getBounds2D();
float midX = (float) b.getCenterX();
float y1 = (float) b.getMinY();
float y2 = (float) b.getMaxY();
return createGradient(midX, y1, midX, y2, new float[] { 0f, 0.43f, 0.57f, 1f },
new Color[] { graphicDropShadow1, graphicDropShadow2, graphicDropShadow3, graphicDropShadow4 });
}
}
