JDK14/Java14源码在线阅读
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package java2d.demos.Paint;
import static java.awt.Color.BLACK;
import static java.awt.Color.GRAY;
import static java.awt.Color.LIGHT_GRAY;
import static java.awt.Color.WHITE;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.TexturePaint;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java2d.AnimatingControlsSurface;
import java2d.CustomControls;
import javax.swing.AbstractButton;
import javax.swing.Icon;
import javax.swing.JComboBox;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JToggleButton;
import javax.swing.JToolBar;
import javax.swing.plaf.metal.MetalBorders.ButtonBorder;
/**
* TexturePaint animation with controls for transformations.
*/
@SuppressWarnings("serial")
public final class TextureAnim extends AnimatingControlsSurface {
public static final Color colorblend = new Color(0f, 0f, 1f, .5f);
protected static BufferedImage textureImg;
protected int bNum;
protected int tilesize;
private boolean newtexture;
private TexturePaint texturePaint;
private Rectangle tilerect;
private boolean bouncesize = false;
private boolean bouncerect = true;
private boolean rotate = false;
private boolean shearx = false;
private boolean sheary = false;
private boolean showanchor = true;
private AnimVal w, h, x, y, rot, shx, shy;
private static Image[] img = new Image[2];
public TextureAnim() {
img[0] = getImage("duke.gif"); // 8 bit gif
img[1] = getImage("duke.png"); // 24 bit png
textureImg = makeImage(32, 0);
tilesize = textureImg.getWidth();
w = new AnimVal(0, 200, 3, 10, tilesize);
h = new AnimVal(0, 200, 3, 10, tilesize);
x = new AnimVal(0, 200, 3, 10, 0);
y = new AnimVal(0, 200, 3, 10, 0);
rot = new AnimVal(-360, 360, 5, 15, 0);
shx = new AnimVal(-50, 50, 3, 10, 0);
shy = new AnimVal(-50, 50, 3, 10, 0);
tilerect = new Rectangle(x.getInt(), y.getInt(),
w.getInt(), h.getInt());
texturePaint = new TexturePaint(textureImg, tilerect);
setControls(new Component[] { new DemoControls(this) });
}
protected BufferedImage makeImage(int size, int num) {
newtexture = true;
switch (bNum = num) {
case 0:
return makeRGBImage(size);
case 1:
return makeGIFImage(size);
case 2:
return makePNGImage(size);
}
return null;
}
private BufferedImage makeRGBImage(int size) {
BufferedImage bi = new BufferedImage(size, size,
BufferedImage.TYPE_INT_RGB);
Graphics2D big = bi.createGraphics();
big.setColor(WHITE);
big.fillRect(0, 0, size, size);
for (int j = 0; j < size; j++) {
float RED = j / (float) size;
for (int i = 0; i < size; i++) {
float GREEN = i / (float) size;
big.setColor(new Color(1.0f - RED, 1.0f - GREEN, 0.0f, 1.0f));
big.drawLine(i, j, i, j);
}
}
return bi;
}
private BufferedImage makeGIFImage(int d) {
BufferedImage bi = new BufferedImage(d, d, BufferedImage.TYPE_INT_RGB);
Graphics2D big = bi.createGraphics();
big.drawImage(img[0], 0, 0, d, d, new Color(204, 204, 255), null);
return bi;
}
private BufferedImage makePNGImage(int d) {
BufferedImage bi = new BufferedImage(d, d, BufferedImage.TYPE_INT_RGB);
Graphics2D big = bi.createGraphics();
big.drawImage(img[1], 0, 0, d, d, LIGHT_GRAY, null);
return bi;
}
@Override
public void reset(int width, int height) {
x.newlimits(-width / 4, width / 4 - w.getInt());
y.newlimits(-height / 4, height / 4 - h.getInt());
}
@Override
public void step(int width, int height) {
if (tilesize != textureImg.getWidth()) {
tilesize = textureImg.getWidth();
}
if (bouncesize) {
w.anim();
h.anim();
x.newlimits(-width / 4, width / 4 - w.getInt());
y.newlimits(-height / 4, height / 4 - h.getInt());
} else {
if (w.getInt() != tilesize) {
w.set(tilesize);
x.newlimits(-width / 4, width / 4 - w.getInt());
}
if (h.getInt() != tilesize) {
h.set(tilesize);
y.newlimits(-height / 4, height / 4 - h.getInt());
}
}
if (bouncerect) {
x.anim();
y.anim();
}
if (newtexture || x.getInt() != tilerect.x || y.getInt() != tilerect.y || w.
getInt() != tilerect.width || h.getInt() != tilerect.height) {
newtexture = false;
int X = x.getInt();
int Y = y.getInt();
int W = w.getInt();
int H = h.getInt();
tilerect = new Rectangle(X, Y, W, H);
texturePaint = new TexturePaint(textureImg, tilerect);
}
}
@Override
public void render(int width, int height, Graphics2D g2) {
g2.translate(width / 2, height / 2);
if (rotate) {
rot.anim();
g2.rotate(Math.toRadians(rot.getFlt()));
} else {
rot.set(0);
}
if (shearx) {
shx.anim();
g2.shear(shx.getFlt() / 100, 0.0f);
} else {
shx.set(0);
}
if (sheary) {
shy.anim();
g2.shear(0.0f, shy.getFlt() / 100);
} else {
shy.set(0);
}
g2.setPaint(texturePaint);
g2.fillRect(-1000, -1000, 2000, 2000);
if (showanchor) {
g2.setColor(BLACK);
g2.setColor(colorblend);
g2.fill(tilerect);
}
}
public static void main(String[] argv) {
createDemoFrame(new TextureAnim());
}
static final class AnimVal {
float curval;
float lowval;
float highval;
float currate;
float lowrate;
float highrate;
public AnimVal(int lowval, int highval,
int lowrate, int highrate) {
this.lowval = lowval;
this.highval = highval;
this.lowrate = lowrate;
this.highrate = highrate;
this.curval = randval(lowval, highval);
this.currate = randval(lowrate, highrate);
}
public AnimVal(int lowval, int highval,
int lowrate, int highrate,
int pos) {
this(lowval, highval, lowrate, highrate);
set(pos);
}
public float randval(float low, float high) {
return (float) (low + Math.random() * (high - low));
}
public float getFlt() {
return curval;
}
public int getInt() {
return (int) curval;
}
public void anim() {
curval += currate;
clip();
}
public void set(float val) {
curval = val;
clip();
}
public void clip() {
if (curval > highval) {
curval = highval - (curval - highval);
if (curval < lowval) {
curval = highval;
}
currate = -randval(lowrate, highrate);
} else if (curval < lowval) {
curval = lowval + (lowval - curval);
if (curval > highval) {
curval = lowval;
}
currate = randval(lowrate, highrate);
}
}
public void newlimits(int lowval, int highval) {
this.lowval = lowval;
this.highval = highval;
clip();
}
} // End AnimVal class
final class DemoControls extends CustomControls implements ActionListener {
TextureAnim demo;
JToolBar toolbar;
JComboBox combo;
JMenu menu;
JMenuItem[] menuitems;
int iconSize = 20;
ButtonBorder buttonBorder = new ButtonBorder();
@SuppressWarnings("LeakingThisInConstructor")
public DemoControls(TextureAnim demo) {
super(demo.name);
this.demo = demo;
menuitems = new JMenuItem[3];
add(toolbar = new JToolBar());
toolbar.setFloatable(false);
addTool("BO", "bounce", true);
addTool("SA", "show anchor", true);
addTool("RS", "resize", false);
addTool("RO", "rotate", false);
addTool("SX", "shear x", false);
addTool("SY", "shear y", false);
add(combo = new JComboBox());
combo.addActionListener(this);
combo.addItem("8");
combo.addItem("16");
combo.addItem("32");
combo.addItem("64");
combo.addItem("80");
combo.setSelectedIndex(2);
JMenuBar menuBar = new JMenuBar();
menu = menuBar.add(new JMenu());
for (int i = 0; i < 3; i++) {
BufferedImage bimg = demo.makeImage(iconSize, i);
TexturedIcon icon = new TexturedIcon(bimg);
menuitems[i] = menu.add(new JMenuItem(icon));
menuitems[i].addActionListener(this);
}
menu.setIcon(menuitems[0].getIcon());
add(menuBar);
demo.bNum = 0;
}
public void addTool(String str, String toolTip, boolean state) {
JToggleButton b =
(JToggleButton) toolbar.add(new JToggleButton(str));
b.setBorder(buttonBorder);
b.setFocusPainted(false);
b.setSelected(state);
b.setToolTipText(toolTip);
b.addActionListener(this);
int width = b.getPreferredSize().width+10;
Dimension prefSize = new Dimension(width, 21);
b.setPreferredSize(prefSize);
b.setMaximumSize(prefSize);
b.setMinimumSize(prefSize);
}
@Override
public void actionPerformed(ActionEvent e) {
Object obj = e.getSource();
if (obj instanceof JComboBox) {
String selItem = (String) combo.getSelectedItem();
if (selItem != null) {
int size = Integer.parseInt(selItem);
TextureAnim.textureImg = demo.makeImage(size, demo.bNum);
}
} else if (obj instanceof JMenuItem) {
for (int i = 0; i < menuitems.length; i++) {
if (obj.equals(menuitems[i])) {
TextureAnim.textureImg =
demo.makeImage(demo.tilesize, i);
menu.setIcon(menuitems[i].getIcon());
break;
}
}
} else {
JToggleButton b = (JToggleButton) obj;
if (b.getText().equals("BO")) {
demo.bouncerect = b.isSelected();
} else if (b.getText().equals("SA")) {
demo.showanchor = b.isSelected();
} else if (b.getText().equals("RS")) {
demo.bouncesize = b.isSelected();
} else if (b.getText().equals("RO")) {
demo.rotate = b.isSelected();
} else if (b.getText().equals("SX")) {
demo.shearx = b.isSelected();
} else if (b.getText().equals("SY")) {
demo.sheary = b.isSelected();
}
}
if (!demo.animating.running()) {
demo.repaint();
}
}
@Override
public Dimension getPreferredSize() {
return new Dimension(200, 41);
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