Package net.sourceforge.ganttproject

Source Code of net.sourceforge.ganttproject.UIFacadeImpl$Commiter

/*
* Created on 10.10.2005
*/
package net.sourceforge.ganttproject;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.io.PrintWriter;
import java.io.StringWriter;

import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import javax.swing.WindowConstants;

import net.sourceforge.ganttproject.action.CancelAction;
import net.sourceforge.ganttproject.action.OkAction;
import net.sourceforge.ganttproject.chart.Chart;
import net.sourceforge.ganttproject.chart.GanttChart;
import net.sourceforge.ganttproject.gui.DialogAligner;
import net.sourceforge.ganttproject.gui.GanttDialogInfo;
import net.sourceforge.ganttproject.gui.GanttStatusBar;
import net.sourceforge.ganttproject.gui.ResourceTreeUIFacade;
import net.sourceforge.ganttproject.gui.TaskSelectionContext;
import net.sourceforge.ganttproject.gui.TaskTreeUIFacade;
import net.sourceforge.ganttproject.gui.UIFacade;
import net.sourceforge.ganttproject.gui.scrolling.ScrollingManager;
import net.sourceforge.ganttproject.gui.scrolling.ScrollingManagerImpl;
import net.sourceforge.ganttproject.gui.zoom.ZoomManager;
import net.sourceforge.ganttproject.language.GanttLanguage;
import net.sourceforge.ganttproject.undo.GPUndoManager;

import org.eclipse.core.runtime.IProgressMonitor;
//import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.core.runtime.jobs.ProgressProvider;

class UIFacadeImpl extends ProgressProvider implements UIFacade {
    private final JFrame myMainFrame;
    private final ScrollingManager myScrollingManager;
    private final ZoomManager myZoomManager;
    private final GanttStatusBar myStatusBar;
    private final UIFacade myFallbackDelegate;
    private final GanttLanguage i18n = GanttLanguage.getInstance();
    private final ErrorNotifier myErrorNotifier;
   
    UIFacadeImpl(JFrame mainFrame, GanttStatusBar statusBar, IGanttProject project, UIFacade fallbackDelegate) {
        myMainFrame = mainFrame;
        myScrollingManager = new ScrollingManagerImpl();
        myZoomManager = new ZoomManager(project.getTimeUnitStack());
        myStatusBar = statusBar;
        myFallbackDelegate = fallbackDelegate;
        Platform.getJobManager().setProgressProvider(this);
        myErrorNotifier = new ErrorNotifier(this);
    }
    public ScrollingManager getScrollingManager() {
        return myScrollingManager;
    }

    public ZoomManager getZoomManager() {
        return myZoomManager;
    }
   
    public GPUndoManager getUndoManager() {
        return myFallbackDelegate.getUndoManager();
    }
   
    class MyDialog {
        boolean result;
        final Component contentComponent;
        final OkAction okAction = new OkAction() {
            public void actionPerformed(ActionEvent e) {
                result = true;
            }
        };
        final CancelAction cancelAction = new CancelAction() {
            public void actionPerformed(ActionEvent e) {
            }
        };
        MyDialog(int dialogType, String message) {
            this.contentComponent = createDialogContentComponent(dialogType, message);
        }
        void show() {
            showDialog(contentComponent, new Action[] {okAction, cancelAction});
        }
    }

    public Choice showConfirmationDialog(String message, String title) {
        /*
        MyDialog dialog = new MyDialog(GanttDialogInfo.WARNING, message);
        dialog.show();
        return dialog.result;
        */
        //int result = JOptionPane.showConfirmDialog(myMainFrame, message);
        String yes = GanttLanguage.getInstance().getText("yes");
        String no = GanttLanguage.getInstance().getText("no");
        String cancel = GanttLanguage.getInstance().getText("cancel");
        int result = JOptionPane.showOptionDialog(myMainFrame, message, title, JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null, new String[] {yes, no, cancel}, yes);
        switch (result) {
        case JOptionPane.YES_OPTION: return Choice.YES;
        case JOptionPane.NO_OPTION: return Choice.NO;
        case JOptionPane.CANCEL_OPTION: return Choice.CANCEL;
        case JOptionPane.CLOSED_OPTION: return Choice.CANCEL;
        default: return Choice.CANCEL;
        }
    }

    public void showPopupMenu(Component invoker, Action[] actions, int x, int y) {
        JPopupMenu menu = new JPopupMenu();
        for (int i = 0; i < actions.length; i++) {
            Action next = actions[i];
            if (next == null) {
                menu.addSeparator();
            } else {
                menu.add(next);
            }
        }
        menu.applyComponentOrientation(getLanguage().getComponentOrientation());
        menu.show(invoker, x, y);
    }

    public void showDialog(Component content, Action[] buttonActions) {
      showDialog(content, buttonActions, "");
    }
    public void showDialog(Component content, Action[] buttonActions, String title) {
        JDialog result = new JDialog(myMainFrame, true);
        result.setTitle(title);
        final Commiter commiter = new Commiter();
        Action okAction = null;
        Action cancelAction = null;
        Box buttonBox = Box.createHorizontalBox();
        for (int i = 0; i < buttonActions.length; i++) {
            Action nextAction = buttonActions[i];
            JButton nextButton = null;
            if (nextAction instanceof OkAction) {
                nextAction = createOkAction(nextAction, result, commiter);
                okAction = nextAction;
                nextButton = new JButton(nextAction);
                result.getRootPane().setDefaultButton(nextButton);
            }
            if (nextAction instanceof CancelAction) {
                nextAction = createCancelAction(nextAction, result, commiter);
                cancelAction = nextAction;
                result.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(
                        KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
                        nextAction.getValue(Action.NAME));
                result.getRootPane().getActionMap().put(
                        nextAction.getValue(Action.NAME), nextAction);
            }
            if (nextButton == null) {
                nextButton = new JButton(nextAction);
            }
            buttonBox.add(nextButton);
            if (i < buttonActions.length - 1) {
                buttonBox.add(Box.createHorizontalStrut(5));
            }
        }
        result.getContentPane().setLayout(new BorderLayout());
        result.getContentPane().add(content, BorderLayout.CENTER);
        //
        JPanel buttonPanel = new JPanel(new BorderLayout());
        buttonPanel.setBorder(BorderFactory.createEmptyBorder(0, 0, 5, 5));
        buttonPanel.add(buttonBox, BorderLayout.EAST);
        result.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
        //
        result.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
        final Action localOkAction = okAction;
        final Action localCancelAction = cancelAction;
        result.addWindowListener(new WindowAdapter() {
            public void windowClosed(WindowEvent e) {
                if (localCancelAction != null && !commiter.isCommited()) {
                    localCancelAction.actionPerformed(null);
                }
            }
        });
        result.pack();
        // setSize(300, 300);
        DialogAligner.center(result, myMainFrame);
        result.setVisible(true);
    }

    public void setStatusText(String text) {
        myStatusBar.setFirstText(text, 2000);
    }

    public void showErrorDialog(String errorMessage) {
        if (myMainFrame.isVisible()) {
            GanttDialogInfo gdi = new GanttDialogInfo(myMainFrame,
                    GanttDialogInfo.ERROR, GanttDialogInfo.YES_OPTION, errorMessage,
                    getLanguage().getText("error"));
            gdi.show();
        } else {
            System.err.println("[GanttProjectBase] showErrorDialog:\n "+errorMessage);
        }
    }

    public void showErrorDialog(Throwable e) {
        showErrorDialog(getExceptionReport(e));
        GPLogger.log(e);
    }

  public void logErrorMessage(Throwable e) {
    myErrorNotifier.add(e);
    myStatusBar.setErrorNotifier(myErrorNotifier);
  }
 
  void resetErrorLog() {
    myStatusBar.setErrorNotifier(null);
  }
 
  private Component createDialogContentComponent(int dialogType, String message) {
        JLabel label;
        switch (dialogType) {
        case GanttDialogInfo.ERROR:
            label = new JLabel(new ImageIcon(getClass().getResource(
            "/icons/error.png")));
            break;
        case GanttDialogInfo.WARNING:
            label = new JLabel(new ImageIcon(getClass().getResource(
                    "/icons/warning.png")));
            break;
        case GanttDialogInfo.INFO:
            label = new JLabel(new ImageIcon(getClass().getResource(
                    "/icons/info.png")));
            break;
        case GanttDialogInfo.QUESTION:
            label = new JLabel(new ImageIcon(getClass().getResource(
                    "/icons/question.png")));
            break;
            default: throw new IllegalStateException("We should not be here");
        }
        JPanel imagePanel = new JPanel(new BorderLayout());
        imagePanel.add(label, BorderLayout.NORTH);
        //
        JTextArea textArea = new JTextArea(message);
        textArea.setEditable(false);
        textArea.setBackground(new JLabel().getBackground());
       
        JPanel result = new JPanel(new BorderLayout());
        result.add(imagePanel, BorderLayout.WEST);
        result.add(textArea, BorderLayout.CENTER);
        return result;
    }
   
    public GanttChart getGanttChart() {
        return myFallbackDelegate.getGanttChart();
    }

    public Chart getResourceChart() {
        return myFallbackDelegate.getResourceChart();
    }

    public Chart getActiveChart() {
        return myFallbackDelegate.getActiveChart();
    }

    public int getViewIndex() {
        return myFallbackDelegate.getViewIndex();
    }

    public void setViewIndex(int viewIndex) {
        myFallbackDelegate.setViewIndex(viewIndex);
    }

    public int getGanttDividerLocation() {
        return myFallbackDelegate.getGanttDividerLocation();
    }

    public void setGanttDividerLocation(int location) {
        myFallbackDelegate.setGanttDividerLocation(location);
    }

    public int getResourceDividerLocation() {
        return myFallbackDelegate.getResourceDividerLocation();
    }

    public void setResourceDividerLocation(int location) {
        myFallbackDelegate.setResourceDividerLocation(location);
    }

    public void refresh() {
        myFallbackDelegate.refresh();
    }

    public Frame getMainFrame() {
        return myMainFrame;
    }


    private static class Commiter {
        void commit() {
            isCommited = true;
        }

        boolean isCommited() {
            return isCommited;
        }

        private boolean isCommited;
    }

    private class ProxyOkAction extends OkAction implements
            PropertyChangeListener {
        private Action myRealAction;

        private JDialog myDialog;

        private Commiter myCommiter;

        private ProxyOkAction(final Action realAction, final JDialog dialog,
                final Commiter commiter) {
            realAction.addPropertyChangeListener(this);
            myRealAction = realAction;
            myDialog = dialog;
            myCommiter = commiter;
            setEnabled(realAction.isEnabled());
        }

        public void actionPerformed(ActionEvent e) {
            myRealAction.removePropertyChangeListener(this);
            myRealAction.actionPerformed(e);
            myCommiter.commit();
            if (myDialog.isVisible()) {
                myDialog.setVisible(false);
                myDialog.dispose();
            }
        }

        public void propertyChange(PropertyChangeEvent evt) {
            setEnabled(myRealAction.isEnabled());
        }

    }

    private Action createOkAction(final Action realAction,
            final JDialog dialog, final Commiter commiter) {
        return new ProxyOkAction(realAction, dialog, commiter);
    }

    private Action createCancelAction(final Action realAction,
            final JDialog result, final Commiter commiter) {
        return new CancelAction() {
            public void actionPerformed(ActionEvent e) {
                realAction.actionPerformed(e);
                commiter.commit();
                result.setVisible(false);
                result.dispose();
            }

        };
    }

   
    private static GanttLanguage getLanguage() {
        return GanttLanguage.getInstance();
    }
   
    static String getExceptionReport(Throwable e) {
        StringBuffer result = new StringBuffer();
        result.append(e.getMessage() + "\n\n");
        StringWriter stringWriter = new StringWriter();
        PrintWriter writer = new PrintWriter(stringWriter);
        e.printStackTrace(writer);
        writer.close();
        result.append(stringWriter.getBuffer().toString());
        return result.toString();
    }
    public void setWorkbenchTitle(String title) {
        myMainFrame.setTitle(title);       
       
    }
       
    public IProgressMonitor createMonitor(Job job) {
        return myStatusBar.createProgressMonitor();
    }

    public IProgressMonitor createProgressGroup() {
        return myStatusBar.createProgressMonitor();
    }

    public IProgressMonitor createMonitor(Job job, IProgressMonitor group, int ticks) {
        return group;
    }

    public IProgressMonitor getDefaultMonitor() {
        return null;
    }
  public TaskTreeUIFacade getTaskTree() {
    return myFallbackDelegate.getTaskTree();
  }
  public ResourceTreeUIFacade getResourceTree() {
    return myFallbackDelegate.getResourceTree();
  }
  public TaskSelectionContext getTaskSelectionContext() {
    return myFallbackDelegate.getTaskSelectionContext();
  }
   
}
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