Exemple de captures d'écran dans la zone de mise en œuvre de Java

这是一个 Java 版的截图程序

复制代码代码如下:

Package com.hongyuan.test;

import java.awt.awtexception;

import java.awt.borderLayout;

import java.awt.color;

import java.awt.dimension;

import java.awt.eventqueue;

import java.awt.flowlayout;

import java.awt.graphics;

import java.awt.image;

import java.awt.rectangle;

Importer Java.awt.Robot;

import java.awt.toolkit;

import java.awt.event.actionEvent;

import java.awt.event.actionListener;

Importer java.awt.event.mousEadapter;

Importer java.awt.event.mousevent;

Importer java.awt.event.mousmotionAdapter;

Importer java.awt.image.bufferedImage;

import java.awt.image.rescaleop;

Importer java.io.file;

Importer java.io.ioException;

import java.text.simpledateFormat;

Importer java.util.date;

import javax.imageio.imageio;

import javax.swing.imageicon;

import javax.swing.jbutton;

import javax.swing.jfilechooser;

import javax.swing.jtoolbar;

import javax.swing.jwindow;

import javax.swing.filechooser.filenameExtensionFilter;

Importer javax.swing.filechooser.filesystemView;

classe publique ScrenshotTest {

public static void main (String [] args) {

EventQueue.invokelater (new Runnable () {

@Outrepasser

public void run () {

essayer {

ScreenShotWindow SSW = NOUVEAU ÉCRANSHOTWINDOW ();

ssw.setVisible (true);

} catch (awtexception e) {

e.printStackTrace ();

}

}

});

}

}

/ *

* 截图窗口

* /

Capture d'écran de classe étend Jwindow

{

private int orgx, orgy, endx, endy;

Image de tampon privé = null;

TempiMage de tampon privé = null;

BufferedImage privé SaveImage = NULL;

outils privéswindow = null;

Capture d'écran publiquewindow () lève Awtexception {

// 获取屏幕尺寸

Dimension d = toolkit.getDefaultToolkit (). GetScreensize ();

this.setbounds (0, 0, d.width, d.height);

// 截取屏幕

Robot robot = new robot ();

image = robot.createSCreencapture (nouveau rectangle (0, 0, d.width, d.height));

this.addmouseListener (new Mouseadapter () {

@Outrepasser

public void Mousdressressed (Mouseevent e) {

// 鼠标松开时记录结束点坐标 ， 并隐藏操作窗口

orgx = e.getx ();

orgy = e.gety ();

if (tools! = null) {

outils.setVisible (false);

}

}

@Outrepasser

public void MouseLelent (Mouseevent e) {

// 鼠标松开时 ， 显示操作窗口

if (tools == null) {

Tools = new ToolSwindow (ScreenShotWindow.Te, e.getX (), e.gety ());

}autre{

tools.setLocation (e.getx (), e.gety ());

}

outils.setVisible (true);

outils.tofront ();

}

});

this.addmousmotionListener (new MousmotionAdapter () {

@Outrepasser

public void MouseDragged (Mouseevent e) {

// 鼠标拖动时 ， 记录坐标并重绘窗口

endx = e.getx ();

endy = e.gety ();

// 临时图像 ， 用于缓冲屏幕区域放置屏幕闪烁

Image tempImage2 = CreateImage (ScreenShotWindow.This.getWidth (), ScreenShotWindow.This.geTheight ());

Graphiques g = tempimage2.getGraphics ();

G.DrawImage (TempImage, 0, 0, null);

int x = math.min (orgx, endx);

int y = math.min (orgie, endy);

int width = math.abs (endx - orgx) +1;

int height = math.abs (endy - orgy) +1;

// 加上 1 防止 Largeur 或 Hauteur0

g.setColor (Color.Blue);

G.Drawrect (x-1, y-1, largeur + 1, hauteur + 1);

// 减 1 加 1 都了防止图片矩形框覆盖掉

SaveImage = image.getSubImage (x, y, largeur, hauteur);

G.DrawImage (sauvegarde, x, y, null);

ScreenShotWindow.This.getGraphics (). DrawImage (TempImage2,0,0, ScreenshotWindow.Chis);

}

});

}

@Outrepasser

peinture publique vide (graphiques g) {

RESSALALOP RO = NOUVEAU RESCALALEOP (0,8F, 0, null);

tempimage = ro.filter (image, null);

G.DrawImage (TempImage, 0, 0, This);

}

// 保存图像到文件

public void SaveImage () lève IOException {

JFileChoOSer jfc = new JFileChoOser ();

jfc.setDialogTitle ("保存");

// 文件过滤器 ， 用户过滤可选择文件

FileNameExtensionFilter filter = new FileNameExtensionFilter ("jpg", "jpg");

jfc.setFileFilter (filtre);

// 初始化一个默认文件 （此文件会生成到桌面上 此文件会生成到桌面上

SimpledateFormat sdf = new SimpledateFormat ("yyyymmddhhmmss");

String filename = sdf.format (new Date ());

File filepath = fileSystemView.getFileSystemView (). GethomeDirectory ();

File defaultFile = new File (filepath + file.separator + filename + ".jpg");

jfc.SetSelectedFile (defaultFile);

int flag = jfc.showsAveDialog (this);

if (flag == JFileChoOser.Approve_Option) {

Fichier file = jfc.getSelectedFile ();

String path = file.getPath ();

// 检查文件后缀 ， 放置用户忘记输入后缀或者输入不正确的后缀

if (! (path.endswith (". jpg") || path.endswith (". jpg"))) {

path + = ". jpg";

}

// 写入文件

ImageIo.Write (SaveImage, "JPG", nouveau fichier (chemin));

System.exit (0);

}

}

}

/ *

* 操作窗口

* /

outils de classewindow étend Jwindow

{

Capture d'écran privée Parent;

Public ToolsWindow (ScreenShotWindow Parent, int x, int y) {

this.parent = parent;

this.init ();

this.setLocation (x, y);

this.pack ();

this.setVisible (true);

}

private void init () {

this.setLayout (new BorderLayout ());

JToolbar Toolbar = new Jtoolbar ("Java 截图");

// 保存按钮

JBUTTON SAVEBUTTON = NOUVEAU JBUTTON (NOUVEAU IMAGEICON ("Images / Save.gif"));

SAVEBUTTON.ADDACTIONSLISTEN (New ActionListener () {

@Outrepasser

public void ActionPerformed (ActionEvent e) {

essayer {

parent.saveImage ();

} catch (ioexception e1) {

e1.printStackTrace ();

}

}

});

Toolbar.Add (SaveButton);

// 关闭按钮

Jbutton closebutton = new Jbutton (new ImageIcon ("images / close.gif"));

closebutton.addactionListener (new ActionListener () {

@Outrepasser

public void ActionPerformed (ActionEvent e) {

System.exit (0);

}

});

Toolbar.Add (CloseButton);

this.add (barre d'outils, borderlayout.north);

}

}