DesktopIconPainter.java

/*
 * 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.Shape;

import javax.swing.JComponent;

import com.seaglasslookandfeel.painter.AbstractRegionPainter.PaintContext.CacheMode;
import com.seaglasslookandfeel.painter.util.ShapeGenerator.CornerSize;

/**
 * Nimbus's DesktopIconPainter.
 */
public final class DesktopIconPainter extends AbstractRegionPainter {

    /**
     * Control state.
     */
    public static enum Which {
        BACKGROUND_ENABLED, BACKGROUND_ENABLED_WINDOWFOCUSED,
    }

    private TwoColors rootPaneActive   = new TwoColors(decodeColor("seaGlassToolBarActiveTopT"),
                                                       decodeColor("seaGlassToolBarActiveBottomB"));
    private TwoColors rootPaneInactive = new TwoColors(decodeColor("seaGlassToolBarInactiveTopT"),
                                                       decodeColor("seaGlassToolBarInactiveBottomB"));

    private Color frameBorderBase = decodeColor("frameBorderBase");

    private Color frameInnerHighlightInactive = decodeColor("frameInnerHighlightInactive");
    private Color frameInnerHighlightActive   = decodeColor("frameInnerHighlightActive");

    private Color frameBorderActive   = frameBorderBase;
    private Color frameBorderInactive = frameBorderBase;

    private Which        state;
    private PaintContext ctx;

    /**
     * Creates a new DesktopIconPainter object.
     *
     * @param state DOCUMENT ME!
     */
    public DesktopIconPainter(Which state) {
        super();
        this.state = state;
        this.ctx   = new PaintContext(CacheMode.FIXED_SIZES);
    }

    /**
     * {@inheritDoc}
     */
    protected void doPaint(Graphics2D g, JComponent c, int width, int height, Object[] extendedCacheKeys) {
        Shape s = shapeGenerator.createRoundRectangle(2, 0, width - 3, height - 2, CornerSize.FRAME_BORDER);

        getFrameBorderPaint(s);

        s = shapeGenerator.createRoundRectangle(3, 1, width - 5, height - 4, CornerSize.FRAME_INNER_HIGHLIGHT);
        g.setPaint(getFrameInnerHighlightPaint(s));
        g.fill(s);

        s = shapeGenerator.createRoundRectangle(4, 2, width - 7, height - 6, CornerSize.FRAME_INTERIOR);
        g.setPaint(getRootPaneInteriorPaint(s));
        g.fill(s);
    }

    /**
     * {@inheritDoc}
     */
    protected PaintContext getPaintContext() {
        return ctx;
    }

    /**
     * DOCUMENT ME!
     *
     * @param  s    DOCUMENT ME!
     * @return DOCUMENT ME!
     */
    public Paint getFrameBorderPaint(Shape s) {
        switch (state) {

        case BACKGROUND_ENABLED_WINDOWFOCUSED:
            return frameBorderActive;

        case BACKGROUND_ENABLED:
        default:
            return frameBorderInactive;
        }
    }

    /**
     * DOCUMENT ME!
     *
     * @param  s    DOCUMENT ME!
     * @return DOCUMENT ME!
     */
    public Paint getFrameInnerHighlightPaint(Shape s) {
        switch (state) {

        case BACKGROUND_ENABLED_WINDOWFOCUSED:
            return frameInnerHighlightActive;

        case BACKGROUND_ENABLED:
        default:
            return frameInnerHighlightInactive;
        }
    }

    /**
     * DOCUMENT ME!
     *
     * @param  s    DOCUMENT ME!
     * @return DOCUMENT ME!
     */
    public Paint getRootPaneInteriorPaint(Shape s) {
        return createVerticalGradient(s, getRootPaneInteriorColors());
    }

    /**
     * DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    private TwoColors getRootPaneInteriorColors() {
        switch (state) {

        case BACKGROUND_ENABLED_WINDOWFOCUSED:
            return rootPaneActive;

        case BACKGROUND_ENABLED:
        default:
            return rootPaneInactive;
        }
    }
}