slidersliderthumbpainter.java

来自「Mobile 应用程序使用 Java Micro Edition (Java M」· Java 代码 · 共 638 行 · 第 1/2 页

/*
 * SliderSliderThumbPainter.java %E%
 *
 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.sun.java.swing.plaf.nimbus;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.swing.*;
import com.sun.java.swing.Painter;

/**
 */
public final class SliderSliderThumbPainter extends AbstractRegionPainter {
    //package private integers representing the available states that
    //this painter will paint. These are used when creating a new instance
    //of SliderSliderThumbPainter to determine which region/state is being painted
    //by that instance.
    static final int BACKGROUND_DISABLED = 1;
    static final int BACKGROUND_ENABLED = 2;
    static final int BACKGROUND_FOCUSED = 3;
    static final int BACKGROUND_FOCUSED_MOUSEOVER = 4;
    static final int BACKGROUND_FOCUSED_PRESSED = 5;
    static final int BACKGROUND_MOUSEOVER = 6;
    static final int BACKGROUND_PRESSED = 7;
    static final int BACKGROUND_ENABLED_ARROWSHAPE = 8;
    static final int BACKGROUND_DISABLED_ARROWSHAPE = 9;
    static final int BACKGROUND_MOUSEOVER_ARROWSHAPE = 10;
    static final int BACKGROUND_PRESSED_ARROWSHAPE = 11;
    static final int BACKGROUND_FOCUSED_ARROWSHAPE = 12;
    static final int BACKGROUND_FOCUSED_MOUSEOVER_ARROWSHAPE = 13;
    static final int BACKGROUND_FOCUSED_PRESSED_ARROWSHAPE = 14;


    private int state; //refers to one of the static final ints above
    private PaintContext ctx;

    //the following 4 variables are reused during the painting code of the layers
    private Path2D path = new Path2D.Float();
    private Rectangle2D rect = new Rectangle2D.Float(0, 0, 0, 0);
    private RoundRectangle2D roundRect = new RoundRectangle2D.Float(0, 0, 0, 0, 0, 0);
    private Ellipse2D ellipse = new Ellipse2D.Float(0, 0, 0, 0);

    //All Colors used for painting are stored here. Ideally, only those colors being used
    //by a particular instance of SliderSliderThumbPainter would be created. For the moment at least,
    //however, all are created for each instance.
    private Color color1 = decodeColor("nimbusBase", 0.021348298f, -0.5625436f, 0.25490195f, 0);
    private Color color2 = decodeColor("nimbusBase", 0.015098333f, -0.55105823f, 0.19215685f, 0);
    private Color color3 = decodeColor("nimbusBase", 0.021348298f, -0.5924243f, 0.35686272f, 0);
    private Color color4 = decodeColor("nimbusBase", 0.021348298f, -0.56722116f, 0.3098039f, 0);
    private Color color5 = decodeColor("nimbusBase", 0.021348298f, -0.56844974f, 0.32549018f, 0);
    private Color color6 = decodeColor("nimbusBlueGrey", -0.003968239f, 0.0014736876f, -0.25490198f, -156);
    private Color color7 = decodeColor("nimbusBase", 5.1498413E-4f, -0.34585923f, -0.007843137f, 0);
    private Color color8 = decodeColor("nimbusBase", -0.0017285943f, -0.11571431f, -0.25490198f, 0);
    private Color color9 = decodeColor("nimbusBase", -0.023096085f, -0.6238095f, 0.43921566f, 0);
    private Color color10 = decodeColor("nimbusBase", 5.1498413E-4f, -0.43866998f, 0.24705881f, 0);
    private Color color11 = decodeColor("nimbusBase", 5.1498413E-4f, -0.45714286f, 0.32941175f, 0);
    private Color color12 = decodeColor("nimbusFocus", 0.0f, 0.0f, 0.0f, 0);
    private Color color13 = decodeColor("nimbusBase", -0.0038217902f, -0.15532213f, -0.14901963f, 0);
    private Color color14 = decodeColor("nimbusBase", -0.57865167f, -0.6357143f, -0.54509807f, 0);
    private Color color15 = decodeColor("nimbusBase", 0.004681647f, -0.62780917f, 0.44313723f, 0);
    private Color color16 = decodeColor("nimbusBase", 2.9569864E-4f, -0.4653107f, 0.32549018f, 0);
    private Color color17 = decodeColor("nimbusBase", 5.1498413E-4f, -0.4563421f, 0.32549018f, 0);
    private Color color18 = decodeColor("nimbusBase", -0.0017285943f, -0.4732143f, 0.39215684f, 0);
    private Color color19 = decodeColor("nimbusBase", 0.0015952587f, -0.04875779f, -0.18823531f, 0);
    private Color color20 = decodeColor("nimbusBase", 2.9569864E-4f, -0.44943976f, 0.25098038f, 0);
    private Color color21 = decodeColor("nimbusBase", 0.0f, 0.0f, 0.0f, 0);
    private Color color22 = decodeColor("nimbusBase", 8.9377165E-4f, -0.121094406f, 0.12156862f, 0);
    private Color color23 = decodeColor("nimbusBlueGrey", 0.0f, -0.110526316f, 0.25490195f, -121);
    private Color color24 = new Color(150, 156, 168, 146);
    private Color color25 = decodeColor("nimbusBase", -0.0033828616f, -0.40608466f, -0.019607842f, 0);
    private Color color26 = decodeColor("nimbusBase", 5.1498413E-4f, -0.17594418f, -0.20784315f, 0);
    private Color color27 = decodeColor("nimbusBase", 0.0023007393f, -0.11332625f, -0.28627452f, 0);
    private Color color28 = decodeColor("nimbusBase", -0.023096085f, -0.62376213f, 0.4352941f, 0);
    private Color color29 = decodeColor("nimbusBase", 0.004681647f, -0.594392f, 0.39999998f, 0);
    private Color color30 = decodeColor("nimbusBase", -0.0017285943f, -0.4454704f, 0.25490195f, 0);
    private Color color31 = decodeColor("nimbusBase", 5.1498413E-4f, -0.4625541f, 0.35686272f, 0);
    private Color color32 = decodeColor("nimbusBase", 5.1498413E-4f, -0.47442397f, 0.4235294f, 0);


    //Array of current component colors, updated in each paint call
    private Object[] componentColors;

    public SliderSliderThumbPainter(PaintContext ctx, int state) {
        super();
        this.state = state;
        this.ctx = ctx;
    }

    @Override
    protected void doPaint(Graphics2D g, JComponent c, int width, int height, Object[] extendedCacheKeys) {
        //populate componentColors array with colors calculated in getExtendedCacheKeys call
        componentColors = extendedCacheKeys;
        //generate this entire method. Each state/bg/fg/border combo that has
        //been painted gets its own KEY and paint method.
        switch(state) {
            case BACKGROUND_DISABLED: paintBackgroundDisabled(g); break;
            case BACKGROUND_ENABLED: paintBackgroundEnabled(g); break;
            case BACKGROUND_FOCUSED: paintBackgroundFocused(g); break;
            case BACKGROUND_FOCUSED_MOUSEOVER: paintBackgroundFocusedAndMouseOver(g); break;
            case BACKGROUND_FOCUSED_PRESSED: paintBackgroundFocusedAndPressed(g); break;
            case BACKGROUND_MOUSEOVER: paintBackgroundMouseOver(g); break;
            case BACKGROUND_PRESSED: paintBackgroundPressed(g); break;
            case BACKGROUND_ENABLED_ARROWSHAPE: paintBackgroundEnabledAndArrowShape(g); break;
            case BACKGROUND_DISABLED_ARROWSHAPE: paintBackgroundDisabledAndArrowShape(g); break;
            case BACKGROUND_MOUSEOVER_ARROWSHAPE: paintBackgroundMouseOverAndArrowShape(g); break;
            case BACKGROUND_PRESSED_ARROWSHAPE: paintBackgroundPressedAndArrowShape(g); break;
            case BACKGROUND_FOCUSED_ARROWSHAPE: paintBackgroundFocusedAndArrowShape(g); break;
            case BACKGROUND_FOCUSED_MOUSEOVER_ARROWSHAPE: paintBackgroundFocusedAndMouseOverAndArrowShape(g); break;
            case BACKGROUND_FOCUSED_PRESSED_ARROWSHAPE: paintBackgroundFocusedAndPressedAndArrowShape(g); break;

        }
    }
        


    @Override
    protected final PaintContext getPaintContext() {
        return ctx;
    }

    private void paintBackgroundDisabled(Graphics2D g) {
        ellipse = decodeEllipse1();
        g.setPaint(decodeGradient1(ellipse));
        g.fill(ellipse);
        ellipse = decodeEllipse2();
        g.setPaint(decodeGradient2(ellipse));
        g.fill(ellipse);

    }

    private void paintBackgroundEnabled(Graphics2D g) {
        ellipse = decodeEllipse3();
        g.setPaint(color6);
        g.fill(ellipse);
        ellipse = decodeEllipse1();
        g.setPaint(decodeGradient3(ellipse));
        g.fill(ellipse);
        ellipse = decodeEllipse2();
        g.setPaint(decodeGradient4(ellipse));
        g.fill(ellipse);

    }

    private void paintBackgroundFocused(Graphics2D g) {
        ellipse = decodeEllipse4();
        g.setPaint(color12);
        g.fill(ellipse);
        ellipse = decodeEllipse1();
        g.setPaint(decodeGradient3(ellipse));
        g.fill(ellipse);
        ellipse = decodeEllipse2();
        g.setPaint(decodeGradient4(ellipse));
        g.fill(ellipse);

    }

    private void paintBackgroundFocusedAndMouseOver(Graphics2D g) {
        ellipse = decodeEllipse4();
        g.setPaint(color12);
        g.fill(ellipse);
        ellipse = decodeEllipse1();
        g.setPaint(decodeGradient5(ellipse));
        g.fill(ellipse);
        ellipse = decodeEllipse2();
        g.setPaint(decodeGradient6(ellipse));
        g.fill(ellipse);

    }

    private void paintBackgroundFocusedAndPressed(Graphics2D g) {
        ellipse = decodeEllipse4();
        g.setPaint(color12);
        g.fill(ellipse);
        ellipse = decodeEllipse1();
        g.setPaint(decodeGradient7(ellipse));
        g.fill(ellipse);
        ellipse = decodeEllipse2();
        g.setPaint(decodeGradient8(ellipse));
        g.fill(ellipse);

    }

    private void paintBackgroundMouseOver(Graphics2D g) {
        ellipse = decodeEllipse3();
        g.setPaint(color6);
        g.fill(ellipse);
        ellipse = decodeEllipse1();
        g.setPaint(decodeGradient5(ellipse));
        g.fill(ellipse);
        ellipse = decodeEllipse2();
        g.setPaint(decodeGradient6(ellipse));
        g.fill(ellipse);

    }

    private void paintBackgroundPressed(Graphics2D g) {
        ellipse = decodeEllipse3();
        g.setPaint(color23);
        g.fill(ellipse);
        ellipse = decodeEllipse1();
        g.setPaint(decodeGradient7(ellipse));
        g.fill(ellipse);
        ellipse = decodeEllipse2();
        g.setPaint(decodeGradient8(ellipse));
        g.fill(ellipse);

    }

    private void paintBackgroundEnabledAndArrowShape(Graphics2D g) {
        path = decodePath1();
        g.setPaint(color24);
        g.fill(path);
        path = decodePath2();
        g.setPaint(decodeGradient9(path));
        g.fill(path);
        path = decodePath3();
        g.setPaint(decodeGradient10(path));
        g.fill(path);

    }

    private void paintBackgroundDisabledAndArrowShape(Graphics2D g) {
        path = decodePath2();
        g.setPaint(decodeGradient11(path));
        g.fill(path);
        path = decodePath3();
        g.setPaint(decodeGradient12(path));
        g.fill(path);

    }

    private void paintBackgroundMouseOverAndArrowShape(Graphics2D g) {
        path = decodePath1();
        g.setPaint(color24);
        g.fill(path);
        path = decodePath2();
        g.setPaint(decodeGradient13(path));
        g.fill(path);
        path = decodePath3();
        g.setPaint(decodeGradient14(path));
        g.fill(path);

    }

    private void paintBackgroundPressedAndArrowShape(Graphics2D g) {
        path = decodePath1();
        g.setPaint(color24);
        g.fill(path);
        path = decodePath2();
        g.setPaint(decodeGradient15(path));
        g.fill(path);
        path = decodePath3();
        g.setPaint(decodeGradient16(path));
        g.fill(path);

    }

    private void paintBackgroundFocusedAndArrowShape(Graphics2D g) {
        path = decodePath4();
        g.setPaint(color12);
        g.fill(path);
        path = decodePath2();
        g.setPaint(decodeGradient9(path));
        g.fill(path);
        path = decodePath3();
        g.setPaint(decodeGradient17(path));
        g.fill(path);

    }

    private void paintBackgroundFocusedAndMouseOverAndArrowShape(Graphics2D g) {
        path = decodePath4();
        g.setPaint(color12);
        g.fill(path);
        path = decodePath2();
        g.setPaint(decodeGradient13(path));
        g.fill(path);
        path = decodePath3();
        g.setPaint(decodeGradient14(path));
        g.fill(path);

    }

    private void paintBackgroundFocusedAndPressedAndArrowShape(Graphics2D g) {
        path = decodePath4();
        g.setPaint(color12);
        g.fill(path);
        path = decodePath2();
        g.setPaint(decodeGradient15(path));
        g.fill(path);
        path = decodePath3();
        g.setPaint(decodeGradient16(path));
        g.fill(path);

    }



    private Ellipse2D decodeEllipse1() {
        ellipse.setFrame(decodeX(0.4f), //x
                         decodeY(0.4f), //y
                         decodeX(2.6f) - decodeX(0.4f), //width
                         decodeY(2.6f) - decodeY(0.4f)); //height
        return ellipse;
    }

    private Ellipse2D decodeEllipse2() {
        ellipse.setFrame(decodeX(0.6f), //x
                         decodeY(0.6f), //y
                         decodeX(2.4f) - decodeX(0.6f), //width
                         decodeY(2.4f) - decodeY(0.6f)); //height
        return ellipse;
    }

    private Ellipse2D decodeEllipse3() {