java繪畫房子代碼 房子的編程代碼
java究竟怎么在JFrame上畫東西？
java在JFrame上畫東西，主要是使用paint方法，代碼如下：
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import?java.awt.Color;
import?java.awt.Graphics;
import?javax.swing.JFrame;
import?javax.swing.JPanel;
public?class?Draw?extends?JFrame{
JPanel??jPanel=new?JPanel();
public?Draw()?{
jPanel.setBackground(Color.red);
add(jPanel);?
Drawation?drawaction=new?Drawation();//添加畫圖，把上面jpanel的設(shè)置給覆蓋了；要是先添加畫圖再添加
add(drawaction);????????????????????//jpanel則把畫圖覆蓋了
}
public?static?void?main(String[]?args){
Draw?draw=new?Draw();
draw.setTitle("abc");
draw.setSize(300,300);
draw.setVisible(true);
draw.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
class?Drawation?extends?JPanel{
public?void?paintComponent(Graphics?g){
super.paintComponents(g);
g.drawString("agagh",?50,?45);
}
}
運(yùn)行結(jié)果如下：
Java畫房子的代碼是什么？
下面是我寫的一個(gè)小東西，繪制了若干圖形： import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import
求java版畫圖程序的源代碼
找到了，很久以前寫的一個(gè)簡(jiǎn)單畫圖，呵呵～當(dāng)時(shí)要求用AWT寫，很難受。
package net.miqiang.gui;
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.Panel;
import java.awt.RenderingHints;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
/**
* 簡(jiǎn)單畫圖板程序
* 好久沒用 AWT 了，寫起來真別扭，如果用 swing 會(huì)很舒服，有空再改寫吧。
*
* @author 米強(qiáng)
*
*/
public class TestMain extends Frame {
// 畫板
private Palette palette = null;
// 顯示當(dāng)前顏色的面板
private Panel nonceColor = null;
// 畫筆粗細(xì)
private Label drawWidth = null;
// 畫筆端點(diǎn)的裝飾
private Label drawCap = null;
// 選取顏色按鈕的監(jiān)聽事件類
private ButtonColorAction buttonColorAction = null;
// 鼠標(biāo)進(jìn)入按鈕后光標(biāo)樣式的監(jiān)聽事件類
private ButtonCursor buttonCursor = null;
// 畫筆樣式的監(jiān)聽事件
private ButtonStrokeAction buttonStrokeAction = null;
/**
* 構(gòu)造方法
*
*/
public TestMain() {
// 設(shè)置標(biāo)題欄文字
super("簡(jiǎn)易畫圖板");
// 構(gòu)造一個(gè)畫圖板
palette = new Palette();
Panel pane = new Panel(new GridLayout(2, 1));
// 畫筆顏色選擇器
Panel paneColor = new Panel(new GridLayout(1, 13));
// 12 個(gè)顏色選擇按鈕
Button [] buttonColor = new Button[12];
Color [] color = {Color.black, Color.blue, Color.cyan, Color.darkGray, Color.gray, Color.green, Color.magenta, Color.orange, Color.pink, Color.red, Color.white, Color.yellow};
// 顯示當(dāng)前顏色的面板
nonceColor = new Panel();
nonceColor.setBackground(Color.black);
paneColor.add(nonceColor);
buttonColorAction = new ButtonColorAction();
buttonCursor = new ButtonCursor();
for(int i = 0; i buttonColor.length; i++){
buttonColor[i] = new Button();
buttonColor[i].setBackground(color[i]);
buttonColor[i].addActionListener(buttonColorAction);
buttonColor[i].addMouseListener(buttonCursor);
paneColor.add(buttonColor[i]);
}
pane.add(paneColor);
// 畫筆顏色選擇器
Panel paneStroke = new Panel(new GridLayout(1, 13));
// 控制畫筆樣式
buttonStrokeAction = new ButtonStrokeAction();
Button [] buttonStroke = new Button[11];
buttonStroke[0] = new Button("1");
buttonStroke[1] = new Button("3");
buttonStroke[2] = new Button("5");
buttonStroke[3] = new Button("7");
buttonStroke[4] = new Button("9");
buttonStroke[5] = new Button("11");
buttonStroke[6] = new Button("13");
buttonStroke[7] = new Button("15");
buttonStroke[8] = new Button("17");
buttonStroke[9] = new Button("■");
buttonStroke[10] = new Button("●");
drawWidth = new Label("3", Label.CENTER);
drawCap = new Label("●", Label.CENTER);
drawWidth.setBackground(Color.lightGray);
drawCap.setBackground(Color.lightGray);
paneStroke.add(drawWidth);
for(int i = 0; i buttonStroke.length; i++){
paneStroke.add(buttonStroke[i]);
buttonStroke[i].addMouseListener(buttonCursor);
buttonStroke[i].addActionListener(buttonStrokeAction);
if(i = 8){
buttonStroke[i].setName("width");
}else{
buttonStroke[i].setName("cap");
}
if(i == 8){
paneStroke.add(drawCap);
}
}
pane.add(paneStroke);
// 將畫筆顏色選擇器添加到窗體中
this.add(pane, BorderLayout.NORTH);
// 將畫圖板添加到窗體中
this.add(palette);
// 添加窗口監(jiān)聽，點(diǎn)擊關(guān)閉按鈕時(shí)退出程序
this.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
// 設(shè)置窗體 ICON 圖標(biāo)
this.setIconImage(Toolkit.getDefaultToolkit().createImage("images/palette.png"));
// 設(shè)置窗口的大小
this.setSize(new Dimension(400, 430));
// 設(shè)置窗口位置，處于屏幕正中央
this.setLocationRelativeTo(null);
// 顯示窗口
this.setVisible(true);
}
/**
* 程序入口
*
* @param args
* 字符串?dāng)?shù)組參數(shù)
*/
public static void main(String[] args) {
new TestMain();
}
/**
* 選取顏色按鈕的監(jiān)聽事件類
* @author 米強(qiáng)
*
*/
class ButtonColorAction implements ActionListener {
public void actionPerformed(ActionEvent e) {
Color color_temp = ((Button)e.getSource()).getBackground();
nonceColor.setBackground(color_temp);
palette.setColor(color_temp);
}
}
/**
* 鼠標(biāo)進(jìn)入按鈕變換光標(biāo)樣式監(jiān)聽事件類
* @author 米強(qiáng)
*
*/
class ButtonCursor extends MouseAdapter {
public void mouseEntered(MouseEvent e) {
((Button)e.getSource()).setCursor(new Cursor(Cursor.HAND_CURSOR));
}
public void mouseExited(MouseEvent e) {
((Button)e.getSource()).setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
}
}
/**
* 設(shè)置畫筆的監(jiān)聽事件類
* @author 米強(qiáng)
*
*/
class ButtonStrokeAction implements ActionListener {
public void actionPerformed(ActionEvent e) {
Button button_temp = (Button) e.getSource();
String name = button_temp.getName();
if(name.equalsIgnoreCase("width")){
drawWidth.setText(button_temp.getLabel());
palette.setStroke(Float.parseFloat(button_temp.getLabel()));
}else if(name.equalsIgnoreCase("cap")){
drawCap.setText(button_temp.getLabel());
if(button_temp.getLabel().equals("■")){
palette.setStroke(BasicStroke.CAP_SQUARE);
}else if(button_temp.getLabel().equals("●")){
palette.setStroke(BasicStroke.CAP_ROUND);
}
}
}
}
}
/**
* 畫板類
*
* @author 米強(qiáng)
*
*/
class Palette extends Panel implements MouseListener, MouseMotionListener {
// 鼠標(biāo) X 坐標(biāo)的位置
private int mouseX = 0;
// 上一次 X 坐標(biāo)位置
private int oldMouseX = 0;
// 鼠標(biāo) Y 坐標(biāo)的位置
private int mouseY = 0;
// 上一次 Y 坐標(biāo)位置
private int oldMouseY = 0;
// 畫圖顏色
private Color color = null;
// 畫筆樣式
private BasicStroke stroke = null;
// 緩存圖形
private BufferedImage image = null;
/**
* 構(gòu)造一個(gè)畫板類
*
*/
public Palette() {
this.addMouseListener(this);
this.addMouseMotionListener(this);
// 默認(rèn)黑色畫筆
color = new Color(0, 0, 0);
// 設(shè)置默認(rèn)畫筆樣式
stroke = new BasicStroke(3.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
// 建立 1280 * 1024 的 RGB 緩存圖象
image = new BufferedImage(1280, 1024, BufferedImage.TYPE_INT_RGB);
// 設(shè)置顏色
image.getGraphics().setColor(Color.white);
// 畫背景
image.getGraphics().fillRect(0, 0, 1280, 1024);
}
/**
* 重寫 paint 繪圖方法
*/
public void paint(Graphics g) {
super.paint(g);
// 轉(zhuǎn)換為 Graphics2D
Graphics2D g2d = (Graphics2D) g;
// 獲取緩存圖形 Graphics2D
Graphics2D bg = image.createGraphics();
// 圖形抗鋸齒
bg.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// 設(shè)置繪圖顏色
bg.setColor(color);
// 設(shè)置畫筆樣式
bg.setStroke(stroke);
// 畫線，從上一個(gè)點(diǎn)到新的點(diǎn)
bg.drawLine(oldMouseX, oldMouseY, mouseX, mouseY);
// 將緩存中的圖形畫到畫板上
g2d.drawImage(image, 0, 0, this);
}
/**
* 重寫 update 方法
*/
public void update(Graphics g) {
this.paint(g);
}
/**
* @return stroke
*/
public BasicStroke getStroke() {
return stroke;
}
/**
* @param stroke 要設(shè)置的 stroke
*/
public void setStroke(BasicStroke stroke) {
this.stroke = stroke;
}
/**
* 設(shè)置畫筆粗細(xì)
* @param width
*/
public void setStroke(float width) {
this.stroke = new BasicStroke(width, stroke.getEndCap(), stroke.getLineJoin());
}
/**
* 設(shè)置畫筆端點(diǎn)的裝飾
* @param cap 參考 java.awt.BasicStroke 類靜態(tài)字段
*/
public void setStroke(int cap) {
this.stroke = new BasicStroke(stroke.getLineWidth(), cap, stroke.getLineJoin());
}
/**
* @return color
*/
public Color getColor() {
return color;
}
/**
* @param color 要設(shè)置的 color
*/
public void setColor(Color color) {
this.color = color;
}
public void mouseClicked(MouseEvent mouseEvent) {
}
/**
* 鼠標(biāo)按下
*/
public void mousePressed(MouseEvent mouseEvent) {
this.oldMouseX = this.mouseX = mouseEvent.getX();
this.oldMouseY = this.mouseY = mouseEvent.getY();
repaint();
}
public void mouseReleased(MouseEvent mouseEvent) {
}
/**
* 鼠標(biāo)進(jìn)入棋盤
*/
public void mouseEntered(MouseEvent mouseEvent) {
this.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));
}
/**
* 鼠標(biāo)退出棋盤
*/
public void mouseExited(MouseEvent mouseEvent) {
this.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
}
/**
* 鼠標(biāo)拖動(dòng)
*/
public void mouseDragged(MouseEvent mouseEvent) {
this.oldMouseX = this.mouseX;
this.oldMouseY = this.mouseY;
this.mouseX = mouseEvent.getX();
this.mouseY = mouseEvent.getY();
repaint();
}
public void mouseMoved(MouseEvent mouseEvent) {
}
}
網(wǎng)頁標(biāo)題：java繪畫房子代碼 房子的編程代碼
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