picturedrawer.java

一个Java图形图像处理编辑器的源代码,常见的图片处理效果里面都实现了

        jrbtnInvert.addActionListener(this);

        //其他反色按钮
        jrbtnOtherInvert = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/other_invert.png"));
        jrbtnOtherInvert.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/other_invert_select.png"));
        jrbtnOtherInvert.addActionListener(this);

        //黑色限制值按钮
        jrbtnBlackThreshold = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/black_threshold.png"));
        jrbtnBlackThreshold.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/black_threshold_selected.png"));
        jrbtnBlackThreshold.addActionListener(this);

        //白色限制值按钮
        jrbtnWhiteThreshold = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/white_threshold.png"));
        jrbtnWhiteThreshold.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/white_threshold_selected.png"));
        jrbtnWhiteThreshold.addActionListener(this);

        //亮度调节按钮
        jrbtnRescale = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/rescale.png"));
        jrbtnRescale.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/rescale_selected.png"));
        jrbtnRescale.addActionListener(this);

        //放大缩小按钮
        jrbtnZoom = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/zoom.png"));
        jrbtnZoom.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/zoom_selected.png"));
        jrbtnZoom.addActionListener(this);

        //3x3边缘化按钮
        jrbtnEdge33 = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/edge33.png"));
        jrbtnEdge33.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/edge33_selected.png"));
        jrbtnEdge33.addActionListener(this);
        
        //5x5边缘化按钮
        jrbtnEdge55 = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/edge55.png"));
        jrbtnEdge55.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/edge55_selected.png"));
        jrbtnEdge55.addActionListener(this);
        
        //锐化按钮
        jrbtnSharpen = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/sharpen.png"));
        jrbtnSharpen.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/sharpen_selected.png"));
        jrbtnSharpen.addActionListener(this);
        
        //钝化按钮
        jrbtnBlur = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/blur.png"));
        jrbtnBlur.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/blur_selected.png"));
        jrbtnBlur.addActionListener(this);

        //垂直镜像按钮
        jrbtnVerticalMirror = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/vertical_mirror.png"));
        jrbtnVerticalMirror.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/vertical_mirror_selected.png"));
        jrbtnVerticalMirror.addActionListener(this);

        //水平镜像按钮
        jrbtnHorizontalMirror = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/horizontal_mirror.png"));
        jrbtnHorizontalMirror.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/horizontal_mirror_selected.png"));
        jrbtnHorizontalMirror.addActionListener(this);
        
        //恢复按钮
        jrbtnRetrieve = new JRadioButton(
	    new ImageIcon("PictureDrawer/res/retrieve.png"));
        jrbtnRetrieve.setSelectedIcon(
            new ImageIcon("PictureDrawer/res/retrieve_selected.png"));
        jrbtnRetrieve.addActionListener(this);
                        
        //添加到ButtonGroup中        
        ButtonGroup group = new ButtonGroup(); 
        group.add(jrbtnHand);
        group.add(jrbtnMagnifier);
        group.add(jrbtnRotate);
        group.add(jrbtnInvert);
        group.add(jrbtnOtherInvert);
        group.add(jrbtnBlackThreshold);
        group.add(jrbtnWhiteThreshold);
        group.add(jrbtnRescale);
        group.add(jrbtnZoom);
        group.add(jrbtnEdge33);
        group.add(jrbtnEdge55);
        group.add(jrbtnSharpen);
        group.add(jrbtnBlur);
        group.add(jrbtnVerticalMirror);
        group.add(jrbtnHorizontalMirror);
	group.add(jrbtnRetrieve);

        toolbuttons.add(jrbtnHand);
        toolbuttons.add(jrbtnMagnifier);
        toolbuttons.add(jrbtnRotate);
        toolbuttons.add(jrbtnInvert);
        toolbuttons.add(jrbtnOtherInvert);
        toolbuttons.add(jrbtnBlackThreshold);
        toolbuttons.add(jrbtnWhiteThreshold);
        toolbuttons.add(jrbtnRescale);
        toolbuttons.add(jrbtnZoom);
        toolbuttons.add(jrbtnEdge33);
        toolbuttons.add(jrbtnEdge55);
        toolbuttons.add(jrbtnSharpen);
        toolbuttons.add(jrbtnBlur);
        toolbuttons.add(jrbtnVerticalMirror);
        toolbuttons.add(jrbtnHorizontalMirror);
        toolbuttons.add(jrbtnRetrieve);
        
        jToolBar1 = new javax.swing.JToolBar();
        jToolBar1.add(jrbtnHand);
        jToolBar1.add(jrbtnMagnifier);
        jToolBar1.add(jrbtnRotate);
        jToolBar1.add(jrbtnInvert);
        jToolBar1.add(jrbtnOtherInvert);
        jToolBar1.add(jrbtnBlackThreshold);
        jToolBar1.add(jrbtnWhiteThreshold);
        jToolBar1.add(jrbtnRescale);
        jToolBar1.add(jrbtnZoom);
        jToolBar1.add(jrbtnEdge33);
        jToolBar1.add(jrbtnEdge55);
        jToolBar1.add(jrbtnSharpen);
        jToolBar1.add(jrbtnBlur);
        jToolBar1.add(jrbtnVerticalMirror);
        jToolBar1.add(jrbtnHorizontalMirror);
        jToolBar1.add(jrbtnRetrieve);

        getContentPane().add(jToolBar1, java.awt.BorderLayout.NORTH);
    }

    /** 
     * 当用户单击 File -> Exit 菜单时，该函数被调用，
     * 用于关闭应用程序
     * <p>
     * @param evt 从actionPerformed事件传递来的ActionEvent对象实例
     */
    private void exitMenuItemActionPerformed(ActionEvent evt) {
        System.exit( 0 );
    }

    /**
     * 本类用于过虑图像文件。
     */
    private static class ImageFileFilter extends 
                    javax.swing.filechooser.FileFilter {
        
        public boolean accept(java.io.File file) {
            if (file == null)
                return false;
            return file.isDirectory() || 
                    file.getName().toLowerCase().endsWith(".gif") || 
                    file.getName().toLowerCase().endsWith(".jpg") ||
                    file.getName().toLowerCase().endsWith(".png");
        }
        
        public String getDescription() {
            return "Image files (*.gif, *.jpg, *.png)";
        }
    }

    /**
     * 处理主窗口中的action事件
     */
    public void actionPerformed(ActionEvent e) {
        //在用户选择File -> Open命令时,
        //显示一个打开文件对话框，选择要显示的图像文件
        if (e.getSource()==openMenuItem) {
            JFileChooser chooser = new JFileChooser();
            chooser.addChoosableFileFilter(new ImageFileFilter());
            int option = chooser.showOpenDialog(this);
            if (option == javax.swing.JFileChooser.APPROVE_OPTION) {
                java.io.File file = chooser.getSelectedFile();
                if (file == null) return;
                ImageFrame ifr = new ImageFrame(this, file.getAbsolutePath());
                desktop.add(ifr, javax.swing.JLayeredPane.DEFAULT_LAYER);

                ifr.setVisible( true );
                ifr.setLocation(0, 0);
            }
            return;
        } else if (e.getSource()==jrbtnHand) {
            current_tool = TOOL_MOUSE;
        } else {
            JInternalFrame jif = desktop.getSelectedFrame();

            //如果没有活动窗口或者不是ImageFrame窗口，退出操作
            if ((jif==null)||(!(jif instanceof ImageFrame))) {
                debug("actionPerformed", 
                    "No JInternalFrame is selected, return");
                return;
            }
            
            //获得当前的活动窗口，所有的操作只针对当前的窗口
            ImageFrame ifr = (ImageFrame)jif;
            
            //保存图像
            if (e.getSource()==saveMenuItem) {
                ifr.save("");
                return;
            } 
            
            //图像另存
            if (e.getSource()==saveAsMenuItem) {
                //在用户选择File -> Save As命令时,
                //显示一个保存文件对话框，选择要保存的图像文件名
                JFileChooser chooser = new JFileChooser();
                chooser.setDialogType(JFileChooser.SAVE_DIALOG);
                chooser.addChoosableFileFilter(new ImageFileFilter());
                int option = chooser.showOpenDialog(this);
                if (option == javax.swing.JFileChooser.APPROVE_OPTION) {
                    java.io.File file = chooser.getSelectedFile();
                    if (file != null) {
                        ifr.save(file.getAbsolutePath());
                    }
                }
                return;
            }
            
            if ((e.getSource()==jrbtnMagnifier) ||
                        (e.getSource()==magnifierMenuItem)) {
                current_tool = TOOL_MAGNIFIER;
            } else if ((e.getSource()==jrbtnRotate) ||
                        (e.getSource()==rotateMenuItem)) {
                current_tool = TOOL_ROTATE;
            } else if ((e.getSource()==jrbtnInvert) ||
                        (e.getSource()==invertMenuItem)) {
                current_tool = TOOL_INVERT;
            } else if ((e.getSource()==jrbtnOtherInvert) ||
                        (e.getSource()==otherInvertMenuItem)) {
                current_tool = TOOL_OTHER_INVERT;
            } else if ((e.getSource()==jrbtnBlackThreshold) ||
                        (e.getSource()==blackThresholdMenuItem)) {
                current_tool = TOOL_BLACK_THRESHOLD;
            } else if ((e.getSource()==jrbtnWhiteThreshold) ||
                        (e.getSource()==whiteThresholdMenuItem)) {
                current_tool = TOOL_WHITE_THRESHOLD;
            } else if ((e.getSource()==jrbtnRescale) ||
                        (e.getSource()==rescaleMenuItem)) {
                current_tool = TOOL_RESCALE;
            } else if ((e.getSource()==jrbtnZoom) ||
                        (e.getSource()==zoomMenuItem)) {
                current_tool = TOOL_ZOOM;
            } else if ((e.getSource()==jrbtnEdge33) ||
                        (e.getSource()==edge33MenuItem)) {
                current_tool = TOOL_EDGE33;
            } else if ((e.getSource()==jrbtnEdge55) ||
                        (e.getSource()==edge55MenuItem)) {
                current_tool = TOOL_EDGE55;
            } else if ((e.getSource()==jrbtnSharpen) ||
                        (e.getSource()==sharpenMenuItem)) {
                current_tool = TOOL_SHARPEN;
            } else if ((e.getSource()==jrbtnBlur) ||
                        (e.getSource()==blurMenuItem)) {
                current_tool = TOOL_BLUR;
            } else if ((e.getSource()==jrbtnVerticalMirror) ||
                        (e.getSource()==vMirrorMenuItem)) {
                current_tool = TOOL_VERTICAL_MIRROR;
            } else if ((e.getSource()==jrbtnHorizontalMirror) ||
                        (e.getSource()==hMirrorMenuItem)) {
                current_tool = TOOL_HORIZONTAL_MIRROR;
            } else if ((e.getSource()==jrbtnRetrieve) ||
                        (e.getSource()==retrieveMenuItem)) {
                current_tool = TOOL_RETRIEVE;
            }

            ifr.operate(current_tool);
        }
            
        debug("actionPerformed", "current tool is - " + current_tool);
    }    

    /**
     * 调试函数，在屏幕上输出调试信息
     */
    void debug(String method_name, String msg) {
        System.out.println("[" + method_name + "]       : " + msg);
    }
    
    /**
     * 当ImageFrame的状态改变时（活动的ImageFram改变时），
     * 修改工具栏上的按钮状态
     */
    void updateToolButtons(int buttonID) {
        if (buttonID<=toolbuttons.size()) {
            JRadioButton jrb = (JRadioButton)toolbuttons.elementAt(buttonID);
            jrb.setSelected(true);
            current_tool = buttonID;
            jToolBar1.updateUI();
        }
        
    }
    
    /** 
     * 开始执行应用程序
     * @param args 应用程序的参数
     */    
    public static void main(String args[]) {
        new PictureDrawer().show();
    }
}