下面列出了怎么用java.awt.LinearGradientPaint的API类实例代码及写法，或者点击链接到github查看源代码。
@Override
public Paint createCustomLcdBackgroundPaint(final Color[] LCD_COLORS) {
final Point2D FOREGROUND_START = new Point2D.Double(0.0, 1.0);
final Point2D FOREGROUND_STOP = new Point2D.Double(0.0, getHeight() - 1);
if (FOREGROUND_START.equals(FOREGROUND_STOP)) {
FOREGROUND_STOP.setLocation(0.0, FOREGROUND_START.getY() + 1);
}
final float[] FOREGROUND_FRACTIONS = {
0.0f,
0.03f,
0.49f,
0.5f,
1.0f
};
final Color[] FOREGROUND_COLORS = {
LCD_COLORS[0],
LCD_COLORS[1],
LCD_COLORS[2],
LCD_COLORS[3],
LCD_COLORS[4]
};
return new LinearGradientPaint(FOREGROUND_START, FOREGROUND_STOP, FOREGROUND_FRACTIONS, FOREGROUND_COLORS);
}
@Override
boolean isPaintValid(SunGraphics2D sg2d) {
LinearGradientPaint paint = (LinearGradientPaint)sg2d.paint;
if (paint.getFractions().length == 2 &&
paint.getCycleMethod() != CycleMethod.REPEAT &&
paint.getColorSpace() != ColorSpaceType.LINEAR_RGB)
{
D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData;
D3DGraphicsDevice gd = (D3DGraphicsDevice)
dstData.getDeviceConfiguration().getDevice();
if (gd.isCapPresent(CAPS_LCD_SHADER)) {
// we can delegate to the optimized two-color gradient
// codepath, which should be faster
return true;
}
}
return super.isPaintValid(sg2d);
}
@Override
public Paint createCustomLcdBackgroundPaint(final Color[] LCD_COLORS) {
final Point2D FOREGROUND_START = new Point2D.Double(0.0, LCD.getMinY() + 1.0);
final Point2D FOREGROUND_STOP = new Point2D.Double(0.0, LCD.getMaxY() - 1);
if (FOREGROUND_START.equals(FOREGROUND_STOP)) {
FOREGROUND_STOP.setLocation(0.0, FOREGROUND_START.getY() + 1);
}
final float[] FOREGROUND_FRACTIONS = {
0.0f,
0.03f,
0.49f,
0.5f,
1.0f
};
final Color[] FOREGROUND_COLORS = {
LCD_COLORS[0],
LCD_COLORS[1],
LCD_COLORS[2],
LCD_COLORS[3],
LCD_COLORS[4]
};
return new LinearGradientPaint(FOREGROUND_START, FOREGROUND_STOP, FOREGROUND_FRACTIONS, FOREGROUND_COLORS);
}
public void paint(Graphics2D g, Rectangle dirtyArea, ChartContext context) {
if (gradient || selection) {
int rowsCount = chart.getRowsCount();
for (int i = 0; i < rowsCount; i++) {
TimelineChart.Row row = chart.getRow(i);
ChartContext rowContext = row.getContext();
int y = Utils.checkedInt(rowContext.getViewportOffsetY());
int h = Utils.checkedInt(rowContext.getViewportHeight() - 1);
if (gradient) {
g.setPaint(new LinearGradientPaint(0, y, 0, y + h, FRACTIONS, COLORS));
g.fillRect(0, y, chart.getWidth(), h);
}
if (selection && chart.isRowSelected(row)) {
g.setColor(SELECTED_FILTER);
g.fillRect(0, y, chart.getWidth(), h);
}
}
}
}
@Override
public void drawIcon(Graphics2D g2, int width, int height, int percentage) {
// prepare background
g2.setColor(Color.WHITE);
g2.fillRect(0, 0, width, height);
// 0-50 % is the same color, only the last 50% fade into red
Color startColor = new Color(0f, .5f, 0, 0.7f);
g2.setColor(startColor);
g2.setPaint(new LinearGradientPaint(width / 2, 0f, width, 0f, new float[] { 0f, 0.5f, 1f }, new Color[] {
new Color(0f, .5f, 0, 0.7f), new Color(1f, 1f, 0f, 0.7f), new Color(1f, 0, 0, 0.7f) }));
g2.fillRect(0, 0, (int) (percentage / 100d * width), height);
// draw border
g2.setColor(Color.GRAY);
g2.drawRect(0, 0, width - 1, height - 1);
g2.dispose();
}
@Override
public Paint createCustomLcdBackgroundPaint(final Color[] LCD_COLORS) {
final Point2D FOREGROUND_START = new Point2D.Double(0.0, LCD.getMinY() + 1.0);
final Point2D FOREGROUND_STOP = new Point2D.Double(0.0, LCD.getMaxY() - 1);
if (FOREGROUND_START.equals(FOREGROUND_STOP)) {
FOREGROUND_STOP.setLocation(0.0, FOREGROUND_START.getY() + 1);
}
final float[] FOREGROUND_FRACTIONS = {
0.0f,
0.03f,
0.49f,
0.5f,
1.0f
};
final Color[] FOREGROUND_COLORS = {
LCD_COLORS[0],
LCD_COLORS[1],
LCD_COLORS[2],
LCD_COLORS[3],
LCD_COLORS[4]
};
return new LinearGradientPaint(FOREGROUND_START, FOREGROUND_STOP, FOREGROUND_FRACTIONS, FOREGROUND_COLORS);
}
@Override
boolean isPaintValid(SunGraphics2D sg2d) {
LinearGradientPaint paint = (LinearGradientPaint)sg2d.paint;
if (paint.getFractions().length == 2 &&
paint.getCycleMethod() != CycleMethod.REPEAT &&
paint.getColorSpace() != ColorSpaceType.LINEAR_RGB)
{
D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData;
D3DGraphicsDevice gd = (D3DGraphicsDevice)
dstData.getDeviceConfiguration().getDevice();
if (gd.isCapPresent(CAPS_LCD_SHADER)) {
// we can delegate to the optimized two-color gradient
// codepath, which should be faster
return true;
}
}
return super.isPaintValid(sg2d);
}
/**
* Returns an SVG color string based on the current paint. To handle
* {@code GradientPaint} we rely on the {@code setPaint()} method
* having set the {@code gradientPaintRef} attribute.
*
* @return An SVG color string.
*/
private String svgColorStr() {
String result = "black;";
if (this.paint instanceof Color) {
return rgbColorStr((Color) this.paint);
} else if (this.paint instanceof GradientPaint
|| this.paint instanceof LinearGradientPaint
|| this.paint instanceof RadialGradientPaint) {
return "url(#" + this.gradientPaintRef + ")";
}
return result;
}
/**
* Create the gradient for the top of a rectangular shadow.
*
* @param s the shape of the gradient. This is only used for its bounds.
*
* @return the gradient.
*/
public Paint getTopShadowGradient(Shape s) {
Rectangle2D bounds = s.getBounds2D();
float minY = (float) bounds.getMinY();
float maxY = (float) bounds.getMaxY();
float midX = (float) bounds.getCenterX();
return new LinearGradientPaint(midX, minY, midX, maxY, (new float[] { 0f, 1f }), new Color[] { innerShadow.top, transparentColor });
}
/**
* Create a new (if possible, darker) <code>Paint</code> of the same Type.
* If the Type is not supported, the original <code>Paint</code> is returned.
* <p>
* @param paint a <code>Paint</code> implementation
* (e.g. {@link Color}, {@link GradientPaint}, {@link TexturePaint},..)
* <p>
* @return a (usually new, see above) <code>Paint</code>
*/
public static Paint darker(Paint paint) {
if (paint instanceof Color) {
return darker((Color) paint);
}
if (legacyAlpha == true) {
/*
* Legacy? Just return the original Paint.
* (this corresponds EXACTLY to how Paints used to be darkened)
*/
return paint;
}
if (paint instanceof GradientPaint) {
return darker((GradientPaint) paint);
}
if (paint instanceof LinearGradientPaint) {
return darkerLinearGradientPaint((LinearGradientPaint) paint);
}
if (paint instanceof RadialGradientPaint) {
return darkerRadialGradientPaint((RadialGradientPaint) paint);
}
if (paint instanceof TexturePaint) {
try {
return darkerTexturePaint((TexturePaint) paint);
}
catch (Exception e) {
/*
* Lots can go wrong while fiddling with Images, Color Models
* & such! If anything at all goes awry, just return the original
* TexturePaint. (TexturePaint's are immutable anyway, so no harm
* done)
*/
return paint;
}
}
return paint;
}
private LinearGradientPaint makeLinear(int numColors, boolean alpha) {
float interval = 1.0f / (numColors - 1);
float[] fractions = new float[numColors];
for (int i = 0; i < fractions.length; i++) {
fractions[i] = i * interval;
}
Color[] colors = makeGradientColors(numColors, alpha);
return new LinearGradientPaint(0.0f, 0.0f,
10.0f, 10.0f,
fractions, colors,
CycleMethod.REFLECT);
}
public Paint getBackgroundPaint() {
final float[] FRACTIONS = {0.0f, 0.25f, 0.5f, 0.75f, 1.0f};
final Color[] DARK_COLORS = {new Color(76, 30, 57), new Color(78, 29, 47), new Color(76, 24, 40), new Color(115, 68, 56), new Color(163, 83, 76)};
LinearGradientPaint DARK_GRADIENT = new LinearGradientPaint(
new Point2D.Double(0, 0), new Point2D.Double(1000, 0),
FRACTIONS, DARK_COLORS, MultipleGradientPaint.CycleMethod.REFLECT);
return DARK_GRADIENT;
}
@Override
boolean isPaintValid(SunGraphics2D sg2d) {
LinearGradientPaint paint = (LinearGradientPaint)sg2d.paint;
if (paint.getFractions().length == 2 &&
paint.getCycleMethod() != CycleMethod.REPEAT &&
paint.getColorSpace() != ColorSpaceType.LINEAR_RGB)
{
// we can delegate to the optimized two-color gradient
// codepath, which does not require fragment shader support
return true;
}
return super.isPaintValid(sg2d);
}
@Override
boolean isPaintValid(SunGraphics2D sg2d) {
LinearGradientPaint paint = (LinearGradientPaint)sg2d.paint;
if (paint.getFractions().length == 2 &&
paint.getCycleMethod() != CycleMethod.REPEAT &&
paint.getColorSpace() != ColorSpaceType.LINEAR_RGB)
{
// we can delegate to the optimized two-color gradient
// codepath, which does not require fragment shader support
return true;
}
return super.isPaintValid(sg2d);
}
private LinearGradientPaint makeLinear(int numColors, boolean alpha) {
float interval = 1.0f / (numColors - 1);
float[] fractions = new float[numColors];
for (int i = 0; i < fractions.length; i++) {
fractions[i] = i * interval;
}
Color[] colors = makeGradientColors(numColors, alpha);
return new LinearGradientPaint(0.0f, 0.0f,
10.0f, 10.0f,
fractions, colors,
CycleMethod.REFLECT);
}
/**
* Sets the Paint in the current graphics state.
* @param paint The Paint object to be used to generate color in
* the rendering process.
* @see java.awt.Graphics#setColor
* @see GradientPaint
* @see TexturePaint
*/
public void setPaint(Paint paint) {
if (paint instanceof Color) {
setColor((Color) paint);
return;
}
if (paint == null || this.paint == paint) {
return;
}
this.paint = paint;
if (imageComp == CompositeType.SrcOverNoEa) {
// special case where compState depends on opacity of paint
if (paint.getTransparency() == Transparency.OPAQUE) {
if (compositeState != COMP_ISCOPY) {
compositeState = COMP_ISCOPY;
}
} else {
if (compositeState == COMP_ISCOPY) {
compositeState = COMP_ALPHA;
}
}
}
Class<? extends Paint> paintClass = paint.getClass();
if (paintClass == GradientPaint.class) {
paintState = PAINT_GRADIENT;
} else if (paintClass == LinearGradientPaint.class) {
paintState = PAINT_LIN_GRADIENT;
} else if (paintClass == RadialGradientPaint.class) {
paintState = PAINT_RAD_GRADIENT;
} else if (paintClass == TexturePaint.class) {
paintState = PAINT_TEXTURE;
} else {
paintState = PAINT_CUSTOM;
}
validFontInfo = false;
invalidatePipe();
}
@Override
boolean isPaintValid(SunGraphics2D sg2d) {
LinearGradientPaint paint = (LinearGradientPaint)sg2d.paint;
if (paint.getFractions().length == 2 &&
paint.getCycleMethod() != CycleMethod.REPEAT &&
paint.getColorSpace() != ColorSpaceType.LINEAR_RGB)
{
// we can delegate to the optimized two-color gradient
// codepath, which does not require fragment shader support
return true;
}
return super.isPaintValid(sg2d);
}
/**
* Sets the Paint in the current graphics state.
* @param paint The Paint object to be used to generate color in
* the rendering process.
* @see java.awt.Graphics#setColor
* @see GradientPaint
* @see TexturePaint
*/
public void setPaint(Paint paint) {
if (paint instanceof Color) {
setColor((Color) paint);
return;
}
if (paint == null || this.paint == paint) {
return;
}
this.paint = paint;
if (imageComp == CompositeType.SrcOverNoEa) {
// special case where compState depends on opacity of paint
if (paint.getTransparency() == Transparency.OPAQUE) {
if (compositeState != COMP_ISCOPY) {
compositeState = COMP_ISCOPY;
}
} else {
if (compositeState == COMP_ISCOPY) {
compositeState = COMP_ALPHA;
}
}
}
Class<? extends Paint> paintClass = paint.getClass();
if (paintClass == GradientPaint.class) {
paintState = PAINT_GRADIENT;
} else if (paintClass == LinearGradientPaint.class) {
paintState = PAINT_LIN_GRADIENT;
} else if (paintClass == RadialGradientPaint.class) {
paintState = PAINT_RAD_GRADIENT;
} else if (paintClass == TexturePaint.class) {
paintState = PAINT_TEXTURE;
} else {
paintState = PAINT_CUSTOM;
}
validFontInfo = false;
invalidatePipe();
}
/**
* Create a new Gradient with its colours darkened.
*
* @param paint a <code>LinearGradientPaint</code>
*
* @return a darker version of the <code>LinearGradientPaint</code>
*/
private static Paint darkerLinearGradientPaint(LinearGradientPaint paint) {
final Color[] paintColors = paint.getColors();
for (int i = 0; i < paintColors.length; i++) {
paintColors[i] = darker(paintColors[i]);
}
return new LinearGradientPaint(paint.getStartPoint(),
paint.getEndPoint(), paint.getFractions(), paintColors,
paint.getCycleMethod(), paint.getColorSpace(),
paint.getTransform());
}
public BufferedImage createOffImage(final int WIDTH, final int HEIGHT) {
final GraphicsConfiguration GFX_CONF = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();
if (WIDTH <= 0 || HEIGHT <= 0) {
return GFX_CONF.createCompatibleImage(1, 1, java.awt.Transparency.TRANSLUCENT);
}
final BufferedImage IMAGE = GFX_CONF.createCompatibleImage(WIDTH, HEIGHT, Transparency.TRANSLUCENT);
final Graphics2D G2 = IMAGE.createGraphics();
G2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
G2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
G2.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE);
G2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
final int IMAGE_WIDTH = IMAGE.getWidth();
final int IMAGE_HEIGHT = IMAGE.getHeight();
final GeneralPath GLAS = new GeneralPath();
GLAS.setWindingRule(Path2D.WIND_EVEN_ODD);
GLAS.moveTo(0.2894736842105263 * IMAGE_WIDTH, 0.43859649122807015 * IMAGE_HEIGHT);
GLAS.curveTo(0.2894736842105263 * IMAGE_WIDTH, 0.5614035087719298 * IMAGE_HEIGHT, 0.38596491228070173 * IMAGE_WIDTH, 0.6052631578947368 * IMAGE_HEIGHT, 0.38596491228070173 * IMAGE_WIDTH, 0.7456140350877193 * IMAGE_HEIGHT);
GLAS.curveTo(0.38596491228070173 * IMAGE_WIDTH, 0.7456140350877193 * IMAGE_HEIGHT, 0.5877192982456141 * IMAGE_WIDTH, 0.7456140350877193 * IMAGE_HEIGHT, 0.5877192982456141 * IMAGE_WIDTH, 0.7456140350877193 * IMAGE_HEIGHT);
GLAS.curveTo(0.5877192982456141 * IMAGE_WIDTH, 0.6052631578947368 * IMAGE_HEIGHT, 0.6929824561403509 * IMAGE_WIDTH, 0.5614035087719298 * IMAGE_HEIGHT, 0.6929824561403509 * IMAGE_WIDTH, 0.43859649122807015 * IMAGE_HEIGHT);
GLAS.curveTo(0.6929824561403509 * IMAGE_WIDTH, 0.32456140350877194 * IMAGE_HEIGHT, 0.6052631578947368 * IMAGE_WIDTH, 0.22807017543859648 * IMAGE_HEIGHT, 0.5 * IMAGE_WIDTH, 0.22807017543859648 * IMAGE_HEIGHT);
GLAS.curveTo(0.38596491228070173 * IMAGE_WIDTH, 0.22807017543859648 * IMAGE_HEIGHT, 0.2894736842105263 * IMAGE_WIDTH, 0.32456140350877194 * IMAGE_HEIGHT, 0.2894736842105263 * IMAGE_WIDTH, 0.43859649122807015 * IMAGE_HEIGHT);
GLAS.closePath();
final LinearGradientPaint GLAS_PAINT = new LinearGradientPaint(new Point2D.Double(0.5 * IMAGE_WIDTH, 0.2894736842105263 * IMAGE_HEIGHT), new Point2D.Double(0.5 * IMAGE_WIDTH, 0.7017543859649122 * IMAGE_HEIGHT), new float[]{0.0f, 0.99f, 1.0f}, new Color[]{new Color(0.9333333333f, 0.9333333333f, 0.9333333333f, 1f), new Color(0.6f, 0.6f, 0.6f, 1f), new Color(0.6f, 0.6f, 0.6f, 1f)});
G2.setPaint(GLAS_PAINT);
G2.fill(GLAS);
G2.setPaint(new Color(0.8f, 0.8f, 0.8f, 1f));
G2.setStroke(new BasicStroke((0.010101010101010102f * IMAGE_WIDTH), 0, 1));
G2.draw(GLAS);
G2.drawImage(Shadow.INSTANCE.createInnerShadow((Shape) GLAS, GLAS_PAINT, 0, 0.35f, new Color(0, 0, 0, 50), (int) 10.0, 45), GLAS.getBounds().x, GLAS.getBounds().y, null);
G2.dispose();
return IMAGE;
}
private LinearGradientPaint makeLinear(int numColors, boolean alpha) {
float interval = 1.0f / (numColors - 1);
float[] fractions = new float[numColors];
for (int i = 0; i < fractions.length; i++) {
fractions[i] = i * interval;
}
Color[] colors = makeGradientColors(numColors, alpha);
return new LinearGradientPaint(0.0f, 0.0f,
10.0f, 10.0f,
fractions, colors,
CycleMethod.REFLECT);
}
/**
* Create a new (if possible, darker) <code>Paint</code> of the same Type.
* If the Type is not supported, the original <code>Paint</code> is returned.
* <p>
* @param paint a <code>Paint</code> implementation
* (e.g. {@link Color}, {@link GradientPaint}, {@link TexturePaint},..)
* <p>
* @return a (usually new, see above) <code>Paint</code>
*/
public static Paint darker(Paint paint) {
if (paint instanceof Color) {
return darker((Color) paint);
}
if (legacyAlpha == true) {
/*
* Legacy? Just return the original Paint.
* (this corresponds EXACTLY to how Paints used to be darkened)
*/
return paint;
}
if (paint instanceof GradientPaint) {
return darker((GradientPaint) paint);
}
if (paint instanceof LinearGradientPaint) {
return darkerLinearGradientPaint((LinearGradientPaint) paint);
}
if (paint instanceof RadialGradientPaint) {
return darkerRadialGradientPaint((RadialGradientPaint) paint);
}
if (paint instanceof TexturePaint) {
try {
return darkerTexturePaint((TexturePaint) paint);
}
catch (Exception e) {
/*
* Lots can go wrong while fiddling with Images, Color Models
* & such! If anything at all goes awry, just return the original
* TexturePaint. (TexturePaint's are immutable anyway, so no harm
* done)
*/
return paint;
}
}
return paint;
}
static void setPaint(RenderQueue rq, SunGraphics2D sg2d,
Paint paint, int ctxflags)
{
if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) {
setColor(rq, sg2d.pixel);
} else {
boolean useMask = (ctxflags & BufferedContext.USE_MASK) != 0;
switch (sg2d.paintState) {
case SunGraphics2D.PAINT_GRADIENT:
setGradientPaint(rq, sg2d,
(GradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_LIN_GRADIENT:
setLinearGradientPaint(rq, sg2d,
(LinearGradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_RAD_GRADIENT:
setRadialGradientPaint(rq, sg2d,
(RadialGradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_TEXTURE:
setTexturePaint(rq, sg2d,
(TexturePaint)paint, useMask);
break;
default:
break;
}
}
}
@Override
public Paint createCustomLcdBackgroundPaint(final Color[] LCD_COLORS) {
int offset = 1;
if (isFrameVisible()) {
offset = 19;
}
final Point2D FOREGROUND_START = new Point2D.Double(0.0, offset);
final Point2D FOREGROUND_STOP = new Point2D.Double(0.0, getHeight() - offset);
if (FOREGROUND_START.equals(FOREGROUND_STOP)) {
FOREGROUND_STOP.setLocation(0.0, FOREGROUND_START.getY() + 1);
}
final float[] FOREGROUND_FRACTIONS = {
0.0f,
0.03f,
0.49f,
0.5f,
1.0f
};
final Color[] FOREGROUND_COLORS = {
LCD_COLORS[0],
LCD_COLORS[1],
LCD_COLORS[2],
LCD_COLORS[3],
LCD_COLORS[4]
};
return new LinearGradientPaint(FOREGROUND_START, FOREGROUND_STOP, FOREGROUND_FRACTIONS, FOREGROUND_COLORS);
}
private Paint createPaint(PaintType type, int startx, int starty,
int w, int h)
{
// make sure that the blue color doesn't show up when filling a
// w by h rect
w++; h++;
int endx = startx + w;
int endy = starty + h;
Rectangle2D.Float r = new Rectangle2D.Float(startx, starty, w, h);
switch (type) {
case COLOR: return Color.red;
case GRADIENT: return
new GradientPaint(startx, starty, Color.red,
endx, endy, Color.green);
case LINEAR_GRADIENT: return
new LinearGradientPaint(startx, starty, endx, endy,
new float[] { 0.0f, 0.999f, 1.0f },
new Color[] { Color.red, Color.green, Color.blue });
case RADIAL_GRADIENT: return
new RadialGradientPaint(startx, starty,
(float)Math.sqrt(w * w + h * h),
new float[] { 0.0f, 0.999f, 1.0f },
new Color[] { Color.red, Color.green, Color.blue },
CycleMethod.NO_CYCLE);
case TEXTURE: {
BufferedImage bi =
new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D) bi.getGraphics();
g.setPaint(createPaint(PaintType.LINEAR_GRADIENT, 0, 0, w, h));
g.fillRect(0, 0, w, h);
return new TexturePaint(bi, r);
}
}
return Color.green;
}
static void setPaint(RenderQueue rq, SunGraphics2D sg2d,
Paint paint, int ctxflags)
{
if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) {
setColor(rq, sg2d.pixel);
} else {
boolean useMask = (ctxflags & BufferedContext.USE_MASK) != 0;
switch (sg2d.paintState) {
case SunGraphics2D.PAINT_GRADIENT:
setGradientPaint(rq, sg2d,
(GradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_LIN_GRADIENT:
setLinearGradientPaint(rq, sg2d,
(LinearGradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_RAD_GRADIENT:
setRadialGradientPaint(rq, sg2d,
(RadialGradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_TEXTURE:
setTexturePaint(rq, sg2d,
(TexturePaint)paint, useMask);
break;
default:
break;
}
}
}
@Override
public LinearGradientPaint create() {
Point2D start = ((Point2DSerializationWrapper) map.get(KEY_START))
.create();
Point2D end = ((Point2DSerializationWrapper) map.get(KEY_END)).create();
return new LinearGradientPaint(start, end, getFractions(), getColors(),
getCycleMethod(), getColorSpace(), getTransform());
}
/**
* Create a new Gradient with its colours darkened.
*
* @param paint a <code>LinearGradientPaint</code>
*
* @return a darker version of the <code>LinearGradientPaint</code>
*/
private static Paint darkerLinearGradientPaint(LinearGradientPaint paint) {
final Color[] paintColors = paint.getColors();
for (int i = 0; i < paintColors.length; i++) {
paintColors[i] = darker(paintColors[i]);
}
return new LinearGradientPaint(paint.getStartPoint(),
paint.getEndPoint(), paint.getFractions(), paintColors,
paint.getCycleMethod(), paint.getColorSpace(),
paint.getTransform());
}
static void setPaint(RenderQueue rq, SunGraphics2D sg2d,
Paint paint, int ctxflags)
{
if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) {
setColor(rq, sg2d.pixel);
} else {
boolean useMask = (ctxflags & BufferedContext.USE_MASK) != 0;
switch (sg2d.paintState) {
case SunGraphics2D.PAINT_GRADIENT:
setGradientPaint(rq, sg2d,
(GradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_LIN_GRADIENT:
setLinearGradientPaint(rq, sg2d,
(LinearGradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_RAD_GRADIENT:
setRadialGradientPaint(rq, sg2d,
(RadialGradientPaint)paint, useMask);
break;
case SunGraphics2D.PAINT_TEXTURE:
setTexturePaint(rq, sg2d,
(TexturePaint)paint, useMask);
break;
default:
break;
}
}
}
/**
* Create the gradient for a rounded shadow.
*
* @param s the shape of the gradient. This is only used for its bounds.
*
* @return the gradient.
*/
public Paint getRoundedShadowGradient(Shape s) {
Rectangle r = s.getBounds();
int x = r.x + r.width / 2;
int y1 = r.y;
float frac = 1.0f / r.height;
int y2 = r.y + r.height;
return new LinearGradientPaint(x, y1, x, y2, (new float[] { 0f, frac, 1f }),
new Color[] { innerShadow.top, innerShadow.bottom, innerShadow.bottom });
}