forked from fanruan/design
plough
8 years ago
4 changed files with 236 additions and 3 deletions
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After Width: | Height: | Size: 332 B |
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After Width: | Height: | Size: 432 B |
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package com.fr.design.style.color; |
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/** |
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* Created by plough on 2016/12/22. |
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*/ |
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import java.awt.*; |
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import java.awt.event.*; |
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import java.awt.geom.Ellipse2D; |
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import java.awt.image.BufferedImage; |
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import javax.swing.*; |
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/** |
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* 取色框 |
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*/ |
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public class ColorPicker extends JDialog implements ActionListener |
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{ |
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private Container container = getContentPane(); // 主容器
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private int setCoordinateX; // 取色框x坐标
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private int setCoordinateY; // 取色框y坐标
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private int colorPickerSize = 190; // 取色框尺寸
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private int scaleFactor = 16; // 放大倍数
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private ColorPickerPanel colorPickerPanel = new ColorPickerPanel(scaleFactor); // 取色框内容面板
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private Timer timer; // 用于定时重绘
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private int FPS = 45; // 重绘取色器的频率
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private ColorSelectable colorSelectable; |
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private Point mousePos; // 鼠标的绝对坐标
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private Color colorToSet; // 暂存要设置的颜色值
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/** |
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* 构造函数，创建一个取色框窗体 |
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*/ |
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public ColorPicker(ColorSelectable colorSelectable) |
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{ |
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setUndecorated(true); // 去掉窗体边缘
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setResizable(false); |
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Shape shape = new Ellipse2D.Double(0, 0, colorPickerSize, colorPickerSize); |
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setShape(shape); |
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container.add(colorPickerPanel); |
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addMouseListener(new MouseFunctions()); |
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addMouseMotionListener(new MouseMotionFunctions()); |
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updateSize(colorPickerSize); |
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this.colorSelectable = colorSelectable; |
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this.setAlwaysOnTop(true); |
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this.setVisible(true); |
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this.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); |
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} |
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public void start() { |
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timer = new Timer(1000/FPS, this); |
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timer.start(); |
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} |
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/** |
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* 执行Timer要执行的部分， |
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*/ |
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@Override |
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public void actionPerformed(ActionEvent e) { |
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updateLocation(); |
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colorToSet = colorPickerPanel.getPixelColor(mousePos); |
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} |
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public void updateLocation() { |
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mousePos = MouseInfo.getPointerInfo().getLocation(); |
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setCoordinateX = mousePos.x - getSize().width/2; |
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setCoordinateY = mousePos.y- getSize().height/2; |
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colorPickerPanel.setMagnifierLocation(setCoordinateX, |
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setCoordinateY); |
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setLocation(setCoordinateX, setCoordinateY); |
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} |
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/** |
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* 更新窗体 |
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* |
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* @param colorPickerSize 取色框尺寸 |
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*/ |
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public void updateSize(int colorPickerSize) |
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{ |
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colorPickerPanel.setColorPickerSize(colorPickerSize); |
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setSize(colorPickerSize, colorPickerSize); |
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validate(); // 更新所有子控件
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} |
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public void pickComplete() { |
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timer.stop(); |
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colorSelectable.setColor(colorToSet); |
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this.dispose(); |
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} |
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// 隐藏鼠标光标
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public void hideCursor() { |
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Image imageCursor = Toolkit.getDefaultToolkit().getImage(""); |
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// Image img = new BufferedImage()
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Cursor cu = Toolkit.getDefaultToolkit().createCustomCursor(imageCursor, new Point(0,0), "cursor"); |
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// setCursor(Toolkit.getDefaultToolkit().createCustomCursor(
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// imageCursor, new Point(16, 16), "stick"));
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setCursor(cu); |
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} |
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private class MouseFunctions extends MouseAdapter |
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{ |
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public void mousePressed(MouseEvent e) |
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{ |
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pickComplete(); |
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} |
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} |
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private class MouseMotionFunctions extends MouseMotionAdapter |
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{ |
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// public void mouseMoved(MouseEvent e) {
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// hideCursor();
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// }
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} |
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} |
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class ColorPickerPanel extends JPanel |
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{ |
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private BufferedImage screenImage; |
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private int colorPickerSize; // 取色框尺寸
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private int locationX; // 取色框 x 坐标
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private int locationY; // 取色框 y 坐标
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private int scaleFactor; // 放大倍数
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private Robot robot; |
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/** |
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* 带参数的构造函数 |
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* @param scaleFactor 放大倍数 |
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*/ |
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public ColorPickerPanel(int scaleFactor) |
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{ |
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try |
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{ |
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robot = new Robot(); |
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} |
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catch (AWTException e) |
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{ |
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} |
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// 截屏幕
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screenImage = robot.createScreenCapture(new Rectangle(0, 0, Toolkit |
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.getDefaultToolkit().getScreenSize().width, Toolkit |
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.getDefaultToolkit().getScreenSize().height)); |
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this.scaleFactor = scaleFactor; |
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} |
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/** |
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* 设置取色框的位置 |
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* @param locationX x坐标 |
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* @param locationY y坐标 |
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*/ |
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public void setMagnifierLocation(int locationX, int locationY) |
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{ |
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this.locationX = locationX; |
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this.locationY = locationY; |
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repaint(); // 注意重画控件
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} |
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public Color getPixelColor(Point mousePos) { |
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int rgb = screenImage.getRGB(mousePos.x, mousePos.y); |
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int R = (rgb & 0xff0000) >> 16; |
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int G = (rgb & 0xff00) >> 8; |
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int B = (rgb & 0xff); |
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return new Color(R, G, B); |
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} |
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public void setColorPickerSize(int colorPickerSize) |
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{ |
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this.colorPickerSize = colorPickerSize; |
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} |
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public void paintComponent(Graphics g) |
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{ |
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Graphics2D g2d = (Graphics2D) g; |
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); |
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double pixelCount = (double)colorPickerSize / scaleFactor; // 取色器一条边上的放大后的像素点个数（可以是小数）
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// 关键处理代码
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g2d.drawImage( |
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screenImage, // 要画的图片
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0, // 目标矩形的第一个角的x坐标
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0, // 目标矩形的第一个角的y坐标
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colorPickerSize, // 目标矩形的第二个角的x坐标
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colorPickerSize, // 目标矩形的第二个角的y坐标
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locationX + (int)((colorPickerSize - pixelCount) * 0.5) + 1, // 源矩形的第一个角的x坐标
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locationY + (int)((colorPickerSize - pixelCount) * 0.5) + 1, // 源矩形的第一个角的y坐标
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locationX + (int)((colorPickerSize + pixelCount) * 0.5) + 1, // 源矩形的第二个角的x坐标
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locationY + (int)((colorPickerSize + pixelCount) * 0.5) + 1, // 源矩形的第二个角的y坐标
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this |
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); |
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g2d.setColor(Color.black); |
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g2d.drawOval(0, 0, 190, 190); |
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g2d.setColor(Color.white); |
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g2d.drawOval(1, 1, 188, 188); |
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g2d.drawOval(2, 2, 186, 186); |
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g2d.setColor(Color.black); |
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g2d.drawOval(3, 3, 184, 184); |
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g2d.setColor(Color.white); |
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g2d.drawRect(86, 86, 18, 18); |
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g2d.setColor(Color.black); |
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g2d.drawRect(87, 87, 16, 16); |
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} |
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} |
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