frameswizard.java

一个完整的XACML工程,学习XACML技术的好例子!

/*
* Copyright (c) 2000-2005, University of Salford
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without 
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this 
* list of conditions and the following disclaimer.
* 
* Redistributions in binary form must reproduce the above copyright notice, 
* this list of conditions and the following disclaimer in the documentation 
* and/or other materials provided with the distribution. 
*
* Neither the name of the University of Salford nor the names of its 
* contributors may be used to endorse or promote products derived from this 
* software without specific prior written permission. 
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
* POSSIBILITY OF SUCH DAMAGE.
*/

/*
 * FramesWizard.java
 *
 * Created on 25 June 2004, 10:48
 */

package issrg.editor.gui2.wizard;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
 *
 * @author  james
 */
public class FramesWizard extends javax.swing.JFrame implements Wizard, issrg.editor.gui2.GUIConstants {
    
    private WizardFrame[] frames;
    private WizardData data;
    private WizardFinalizer finalizer;
    private int currentFrame;
    private boolean[] showFinish;
    
    private javax.swing.JButton nextButton;
    private javax.swing.JButton backButton;
    private javax.swing.JButton finishButton;
    private javax.swing.JButton cancelButton;
    private javax.swing.JButton helpButton;
    
    private javax.swing.JPanel buttonPanel;
    private javax.swing.JPanel infoPanel;
    private javax.swing.JPanel mainPanel;

    private int maxNameIndex;
    
    private javax.swing.JLabel[] frameNames;
    private String title;
    //private WizardFrame wizardPanel;
    
    /** Creates a new instance of FramesWizard */
    public FramesWizard(String title,
                        WizardFrame[] frames,
                        WizardFinalizer finalizer) {
        int maxNameLength = 0;
        maxNameIndex = 0;
        int curNameLength;
                        
        this.title = title;
        this.frames = frames;
        this.finalizer = finalizer;
        this.currentFrame = 0;
        for(int i = 0; i < this.frames.length; i++){
            this.frames[i].setWizardParent(this);
        }
        this.showFinish = new boolean[this.frames.length];
        this.frameNames = new javax.swing.JLabel[this.frames.length];
        for(int i = 0; i < this.frameNames.length; i++){
            this.frameNames[i] = new javax.swing.JLabel((i+1) + ". " + this.frames[i].getName());
            if(i == frameNames.length-1) this.showFinish[i] = true;
            else this.showFinish[i] = false;
            if((curNameLength = this.frameNames[i].getText().length()) > maxNameLength){
                maxNameLength = curNameLength;
                maxNameIndex = i;
            }
        }
  
        this.data = new WizardDataHash();
        this.setSizes();
        this.init();
        this.setButtons();
    }
    
    public void cancelAction() {
        this.dispose();
    }
    
    public void finishAction() {
        try{
            if(this.finalizer.performFinalAction(this.data))
                this.dispose();
        }
        catch(WizardException we){
            we.printStackTrace();
        }
    }
    
    public void nextAction() {
        if(this.validateComponents()){
            if(this.currentFrame != frames.length-1){
                this.currentFrame++;
                this.setSelectedName();
                this.setWizardPanel();
                this.setButtons();
            }
        }
        
    }
    
    public void backAction() {
        if(this.currentFrame != 0){
            this.currentFrame--;
            this.setSelectedName();
            this.setWizardPanel();
            this.setButtons();
        }
    }
       
    public void helpAction() {
        this.frames[this.currentFrame].displayHelp();
    }
    
    public void start() {
        this.show();
    }
    
    public WizardData getWizardData() {
        return this.data;
    }
    
    public void setWizardData(WizardData data) {
        this.data = data;
    }
    
    private boolean validateComponents(){
        WizardComponent[] comps = this.frames[this.currentFrame].getWizardComponents();
        for(int i = 0; i < comps.length; i++){
            if(!comps[i].validateComponent(this.data)){
                this.frames[this.currentFrame].displayErrorMessage(comps[i].getValidationError());
                return false;
            }
        }
        return true;
    }
    
    private void init(){
        this.setTitle(this.title);
        this.setResizable(false);
        this.buttonPanel = new javax.swing.JPanel();
        this.buttonPanel.setLayout(new java.awt.BorderLayout());
        this.mainPanel = new javax.swing.JPanel();
        
        this.mainPanel.setLayout(new java.awt.GridBagLayout());
        this.getContentPane().setLayout(new java.awt.GridBagLayout());
        java.awt.GridBagConstraints gridBagConstraints = new java.awt.GridBagConstraints();
        
        javax.swing.JPanel buttonInnerPanel = new javax.swing.JPanel();
        
        this.backButton = new javax.swing.JButton();
        backButton.setFont(BUTTON_FONT);
        backButton.setText(java.util.ResourceBundle.getBundle("issrg/editor/gui2/wizard/Wizard_i18n").getString("back_button_text"));
        backButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                backAction();
            }
        });
        buttonInnerPanel.add(backButton);
        
        this.nextButton = new javax.swing.JButton();
        nextButton.setFont(BUTTON_FONT);
        nextButton.setText(java.util.ResourceBundle.getBundle("issrg/editor/gui2/wizard/Wizard_i18n").getString("next_button_text"));
        nextButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                nextAction();
            }
        });
        buttonInnerPanel.add(nextButton);
        
        this.finishButton = new javax.swing.JButton();
        finishButton.setFont(BUTTON_FONT);
        finishButton.setText(java.util.ResourceBundle.getBundle("issrg/editor/gui2/wizard/Wizard_i18n").getString("finish_button_text"));
        finishButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                finishAction();
            }
        });
        buttonInnerPanel.add(finishButton);
        
        this.cancelButton = new javax.swing.JButton();
        cancelButton.setFont(BUTTON_FONT);
        cancelButton.setText(java.util.ResourceBundle.getBundle("issrg/editor/gui2/wizard/Wizard_i18n").getString("cancel_button_text"));
        cancelButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                cancelAction();
            }
        });
        buttonInnerPanel.add(cancelButton);
        
        this.helpButton = new javax.swing.JButton();
        helpButton.setFont(BUTTON_FONT);
        helpButton.setText(java.util.ResourceBundle.getBundle("issrg/editor/gui2/wizard/Wizard_i18n").getString("help_button_text"));
        helpButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                helpAction();
            }
        });
        buttonInnerPanel.add(helpButton);
        buttonPanel.add(buttonInnerPanel, java.awt.BorderLayout.EAST);
        this.setWizardPanel();
        this.initInfoPanel();
        
        for(int i = 0; i < this.frames.length; i++)
        {
            gridBagConstraints.gridx = 1;
            gridBagConstraints.gridy = 0;
            gridBagConstraints.insets = new java.awt.Insets(1,1,1,1);
            this.frames[i].setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
            gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
            this.mainPanel.add(this.frames[i], gridBagConstraints);
            //javax.swing.JPanel cur = this.frames[i];
            if(i == currentFrame) this.frames[i].setVisible(true);
            else this.frames[i].setVisible(false);
        }
        
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.insets = new java.awt.Insets(1,1,1,1);
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
        this.infoPanel.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
        this.mainPanel.add(infoPanel, gridBagConstraints);
        
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.insets = new java.awt.Insets(1,1,1,1);
        gridBagConstraints.anchor = java.awt.GridBagConstraints.SOUTH;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        this.buttonPanel.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
        this.getContentPane().add(buttonPanel, gridBagConstraints);
        
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
        this.getContentPane().add(mainPanel, gridBagConstraints);
        
        pack();
    }
    
    private void initInfoPanel(){
        this.infoPanel = new javax.swing.JPanel();
        int infoPanelWidth = this.infoPanel.getFontMetrics(SELECTED).stringWidth(this.frameNames[maxNameIndex].getText());
        this.infoPanel.setPreferredSize(new java.awt.Dimension(infoPanelWidth+20, 0));
        this.infoPanel.setBackground(java.awt.Color.WHITE);

        this.infoPanel.setLayout(new java.awt.BorderLayout());
        
        javax.swing.JPanel innerPanel = new javax.swing.JPanel();
        innerPanel.setLayout(new java.awt.GridBagLayout());
        innerPanel.setBackground(java.awt.Color.WHITE);
        
        java.awt.GridBagConstraints gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
        
        javax.swing.JLabel heading = new javax.swing.JLabel(java.util.ResourceBundle.getBundle("issrg/editor/gui2/wizard/Wizard_i18n").getString("steps_heading"));
        heading.setFont(new java.awt.Font(FONT_NAME, 0, 12));
        innerPanel.add(heading, gridBagConstraints);
        
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
        javax.swing.JSeparator sep = new javax.swing.JSeparator();
        sep.setForeground(new java.awt.Color(0, 0, 0));
        sep.setPreferredSize(new java.awt.Dimension(100, 2));
        innerPanel.add(sep, gridBagConstraints);
        
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
        javax.swing.JSeparator sep2 = new javax.swing.JSeparator();
        sep2.setPreferredSize(new java.awt.Dimension(0, 20));
        innerPanel.add(sep2, gridBagConstraints);
        
        for(int i = 0; i < this.frameNames.length; i++){
            gridBagConstraints = new java.awt.GridBagConstraints();
            gridBagConstraints.gridx = 0;
            gridBagConstraints.gridy = i+3;
            gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
            innerPanel.add(this.frameNames[i], gridBagConstraints);
        }
        
        javax.swing.JPanel outerPanel = new javax.swing.JPanel();
        outerPanel.setLayout(new java.awt.BorderLayout());
        outerPanel.setBackground(java.awt.Color.WHITE);
        outerPanel.add(innerPanel, java.awt.BorderLayout.WEST);

        
        this.infoPanel.add(outerPanel, java.awt.BorderLayout.NORTH);
        this.setSelectedName();
        pack();
    }
    
    private void setSelectedName(){
        
        for(int i = 0; i < this.frameNames.length; i++){
            if(i == this.currentFrame) this.frameNames[i].setFont(SELECTED);
            else this.frameNames[i].setFont(UNSELECTED);
        }
    }
    
    private void setButtons(){
        if(this.currentFrame == this.frames.length-1) this.nextButton.setEnabled(false);
        else this.nextButton.setEnabled(true);
        
        if(this.currentFrame == 0) this.backButton.setEnabled(false);
        else this.backButton.setEnabled(true);
        
        this.finishButton.setEnabled(this.showFinish[this.currentFrame]);
    }
            
    
    private void setWizardPanel(){
        for(int i = 0; i < this.frames.length; i++){
            if(i == currentFrame) this.frames[i].setVisible(true);
            else this.frames[i].setVisible(false);
        }
        WizardComponent[] comps = this.frames[currentFrame].getWizardComponents();
        for(int i = 0; i < comps.length; i++){
            comps[i].initailiseComponent(this.data);
        }
        
        
    }
    
    private void setSizes(){
        int minX = 300;
        int minY = 300;
        for(int i = 0; i < this.frames.length; i++){
            WizardFrame wiz = this.frames[i];
            java.awt.Dimension currentDim = wiz.getPreferredSize();
            if(currentDim.width > minX) minX = currentDim.width;
            if(currentDim.height > minY) minY = currentDim.height;
        }
        for(int j = 0; j < this.frames.length; j++){
            this.frames[j].setPreferredSize(new java.awt.Dimension(minX, minY));
        }
    }

}