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JIDE Common Layer (Professional Swing Components)
/*
* @(#)MetalUtils.java 5/19/2011
*
* Copyright 2002 - 2011 JIDE Software Inc. All rights reserved.
*/
package com.jidesoft.plaf.metal;
import sun.swing.CachedPainter;
import javax.swing.*;
import javax.swing.plaf.metal.MetalLookAndFeel;
import java.awt.*;
/**
* This is a dumping ground for random stuff we want to use in several places.
*
* @author Steve Wilson
* @version %I% %G%
*/
public class MetalUtils {
/**
* This draws the "Flush 3D Border" which is used throughout the Metal L&F
*/
static void drawFlush3DBorder(Graphics g, int x, int y, int w, int h) {
g.translate(x, y);
g.setColor(MetalLookAndFeel.getControlDarkShadow());
g.drawRect(0, 0, w - 2, h - 2);
g.setColor(MetalLookAndFeel.getControlHighlight());
g.drawRect(1, 1, w - 2, h - 2);
g.setColor(MetalLookAndFeel.getControl());
g.drawLine(0, h - 1, 1, h - 2);
g.drawLine(w - 1, 0, w - 2, 1);
g.translate(-x, -y);
}
/**
* This draws a variant "Flush 3D Border" It is used for things like pressed buttons.
*/
static void drawPressed3DBorder(Graphics g, int x, int y, int w, int h) {
g.translate(x, y);
drawFlush3DBorder(g, 0, 0, w, h);
g.setColor(MetalLookAndFeel.getControlShadow());
g.drawLine(1, 1, 1, h - 2);
g.drawLine(1, 1, w - 2, 1);
g.translate(-x, -y);
}
static void drawActiveButtonBorder(Graphics g, int x, int y, int w, int h) {
drawFlush3DBorder(g, x, y, w, h);
g.setColor(MetalLookAndFeel.getPrimaryControl());
g.drawLine(x + 1, y + 1, x + 1, h - 3);
g.drawLine(x + 1, y + 1, w - 3, x + 1);
g.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
g.drawLine(x + 2, h - 2, w - 2, h - 2);
g.drawLine(w - 2, y + 2, w - 2, h - 2);
}
//
// Ocean specific stuff.
//
/**
* Draws a radial type gradient. The gradient will be drawn vertically if vertical is true, otherwise
* horizontally. The UIManager key consists of five values: r1 r2 c1 c2 c3. The gradient is broken down into four
* chunks drawn in order from the origin. - Gradient r1 % of the size from c1 to c2
- Rectangle r2 % of the
* size in c2.
- Gradient r1 % of the size from c2 to c1
- The remaining size will be filled with a gradient
* from c1 to c3.
*
* @param c Component rendering to
* @param g Graphics to draw to.
* @param key UIManager key used to look up gradient values.
* @param x X coordinate to draw from
* @param y Y coordinate to draw from
* @param w Width to draw to
* @param h Height to draw to
* @param vertical Direction of the gradient
* @return true if key exists, otherwise false.
*/
static boolean drawGradient(Component c, Graphics g, String key,
int x, int y, int w, int h, boolean vertical) {
java.util.List gradient = (java.util.List) UIManager.get(key);
if (gradient == null || !(g instanceof Graphics2D)) {
return false;
}
if (w <= 0 || h <= 0) {
return true;
}
GradientPainter.INSTANCE.paint(
c, (Graphics2D) g, gradient, x, y, w, h, vertical);
return true;
}
private static class GradientPainter extends CachedPainter {
/**
* Instance used for painting. This is the only instance that is ever created.
*/
public static final GradientPainter INSTANCE = new GradientPainter(8);
// Size of images to create. For vertical gradients this is the width,
// otherwise it's the height.
private static final int IMAGE_SIZE = 64;
/**
* This is the actual width we're painting in, or last painted to.
*/
private int w;
/**
* This is the actual height we're painting in, or last painted to
*/
private int h;
GradientPainter(int count) {
super(count);
}
public void paint(Component c, Graphics2D g,
java.util.List gradient, int x, int y, int w,
int h, boolean isVertical) {
int imageWidth;
int imageHeight;
if (isVertical) {
imageWidth = IMAGE_SIZE;
imageHeight = h;
}
else {
imageWidth = w;
imageHeight = IMAGE_SIZE;
}
synchronized (c.getTreeLock()) {
this.w = w;
this.h = h;
paint(c, g, x, y, imageWidth, imageHeight,
gradient, isVertical);
}
}
protected void paintToImage(Component c, Image image, Graphics g,
int w, int h, Object[] args) {
Graphics2D g2 = (Graphics2D) g;
java.util.List gradient = (java.util.List) args[0];
boolean isVertical = ((Boolean) args[1]).booleanValue();
// Render to the VolatileImage
if (isVertical) {
drawVerticalGradient(g2,
((Number) gradient.get(0)).floatValue(),
((Number) gradient.get(1)).floatValue(),
(Color) gradient.get(2),
(Color) gradient.get(3),
(Color) gradient.get(4), w, h);
}
else {
drawHorizontalGradient(g2,
((Number) gradient.get(0)).floatValue(),
((Number) gradient.get(1)).floatValue(),
(Color) gradient.get(2),
(Color) gradient.get(3),
(Color) gradient.get(4), w, h);
}
}
protected void paintImage(Component c, Graphics g,
int x, int y, int imageW, int imageH,
Image image, Object[] args) {
boolean isVertical = ((Boolean) args[1]).booleanValue();
// Render to the screen
g.translate(x, y);
if (isVertical) {
for (int counter = 0; counter < w; counter += IMAGE_SIZE) {
int tileSize = Math.min(IMAGE_SIZE, w - counter);
g.drawImage(image, counter, 0, counter + tileSize, h,
0, 0, tileSize, h, null);
}
}
else {
for (int counter = 0; counter < h; counter += IMAGE_SIZE) {
int tileSize = Math.min(IMAGE_SIZE, h - counter);
g.drawImage(image, 0, counter, w, counter + tileSize,
0, 0, w, tileSize, null);
}
}
g.translate(-x, -y);
}
private void drawVerticalGradient(Graphics2D g, float ratio1,
float ratio2, Color c1, Color c2,
Color c3, int w, int h) {
int mid = (int) (ratio1 * h);
int mid2 = (int) (ratio2 * h);
if (mid > 0) {
g.setPaint(getGradient((float) 0, (float) 0, c1, (float) 0,
(float) mid, c2));
g.fillRect(0, 0, w, mid);
}
if (mid2 > 0) {
g.setColor(c2);
g.fillRect(0, mid, w, mid2);
}
if (mid > 0) {
g.setPaint(getGradient((float) 0, (float) mid + mid2, c2,
(float) 0, (float) mid * 2 + mid2, c1));
g.fillRect(0, mid + mid2, w, mid);
}
if (h - mid * 2 - mid2 > 0) {
g.setPaint(getGradient((float) 0, (float) mid * 2 + mid2, c1,
(float) 0, (float) h, c3));
g.fillRect(0, mid * 2 + mid2, w, h - mid * 2 - mid2);
}
}
private void drawHorizontalGradient(Graphics2D g, float ratio1,
float ratio2, Color c1, Color c2,
Color c3, int w, int h) {
int mid = (int) (ratio1 * w);
int mid2 = (int) (ratio2 * w);
if (mid > 0) {
g.setPaint(getGradient((float) 0, (float) 0, c1,
(float) mid, (float) 0, c2));
g.fillRect(0, 0, mid, h);
}
if (mid2 > 0) {
g.setColor(c2);
g.fillRect(mid, 0, mid2, h);
}
if (mid > 0) {
g.setPaint(getGradient((float) mid + mid2, (float) 0, c2,
(float) mid * 2 + mid2, (float) 0, c1));
g.fillRect(mid + mid2, 0, mid, h);
}
if (w - mid * 2 - mid2 > 0) {
g.setPaint(getGradient((float) mid * 2 + mid2, (float) 0, c1,
w, (float) 0, c3));
g.fillRect(mid * 2 + mid2, 0, w - mid * 2 - mid2, h);
}
}
private GradientPaint getGradient(float x1, float y1,
Color c1, float x2, float y2,
Color c2) {
return new GradientPaint(x1, y1, c1, x2, y2, c2, true);
}
}
}
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