AbstractDesktop.java

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package com.arcle.rmt.j2se.swing.vc;

import javax.swing.*;
import java.awt.Toolkit;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;

import com.arcle.rmt.rqml.RQMLFirstClass;
import com.arcle.rmt.j2se.swing.ui.View;
import com.arcle.rmt.j2se.swing.ui.Controller;
import com.arcle.rmt.j2se.swing.ui.ComponentView;
import com.arcle.rmt.j2se.framework.Document;

public abstract class AbstractDesktop extends ComponentView {
    public AbstractDesktop() {
    }

    protected void layoutChildren() {
        try {
            setLayout(new BorderLayout());
            JSplitPane sp1, sp2;
            JComponent p1, p2, p3;  // in case needed later.

            // master split pane
            sp1 = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);

                // left tree view
                sp1.add(getDocumentTreeView().getComponent(), JSplitPane.LEFT);

                // right desktop panel
                sp1.add(getDesktopPane(), JSplitPane.RIGHT);

                sp1.setOneTouchExpandable(true);
                sp1.setResizeWeight(MASTER_PANE_WEIGHT);

            add(sp1, BorderLayout.CENTER);

            // status bar
            add(getStatusBar().getComponent(), BorderLayout.SOUTH);

        } catch(Exception e) {
            e.printStackTrace();

        }
    }

    //-----------------------------------------------------------------------
    // ComponentView Implementations

    public void setDocument(Document doc) {
        super.setDocument(doc);
        JDesktopPane dp = getDesktopPane();
        View dtv = getDocumentTreeView();
        View sb = getStatusBar();
        if (doc != null) {
            dp.removeAll();
            dp.revalidate();
            dp.repaint();
        }
        dtv.setDocument(doc);
        sb.setDocument(doc);
    }

    public Controller getController() {
        return getDocumentTreeView().getController();
    }

    //-----------------------------------------------------------------------
    // accessor methods

    protected JDesktopPane getDesktopPane() {
        if (_desktopPane == null) {
            _desktopPane = createDesktopPane();
        }
        return _desktopPane;
    }

    protected View getDocumentTreeView() {
        if (_documentTreeView == null) {
            _documentTreeView = createDocumentTreeView();
        }
        return _documentTreeView;
    }

    protected View getStatusBar() {
        if (_statusBar == null) {
            _statusBar = createStatusBar();
        }
        return _statusBar;
    }

    protected ElementEditFactory getElementEditFactory() {
        if (_editFactory == null) {
            _editFactory = createElementEditFactory();
        }
        return _editFactory;
    }


    //-----------------------------------------------------------------------
    // Factory Methods

    protected abstract View createDocumentTreeView();

    protected abstract View createStatusBar();

    protected ElementEditFactory createElementEditFactory() {
        return new EditFactory();
    }

    protected JDesktopPane createDesktopPane() {
        JDesktopPane dp = new JDesktopPane();
        dp.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
        return dp;
    }

    protected JInternalFrame createInternalFrame(JComponent content) {
        final JInternalFrame fr = new JInternalFrame(content.getName(), true,
            true, true, true);
        final JDesktopPane dp = getDesktopPane();
        //fr.setDefaultCloseOperation(JInternalFrame.DO_NOTHING_ON_CLOSE);
        // Do not remove these two lines! see bug note below.
        fr.setSize(150, 100);
        fr.setOpaque(true);
        fr.setVisible(true);
        dp.add(fr);
        final Container cp = fr.getContentPane();
        cp.add(content);
        fr.pack();
        dp.revalidate();

        return fr;
    }

    //-----------------------------------------------------------------------

    private View _documentTreeView = null;

    private View _statusBar = null;

    private JDesktopPane _desktopPane = null;

    private ElementEditFactory _editFactory = null;

    private static final float MASTER_PANE_WEIGHT = 0f;

    //-----------------------------------------------------------------------

    protected class EditFactory implements ElementEditFactory {
        public ElementEdit createElementEdit(RQMLFirstClass elem) {
            ElementEdit ed = ElementEdit.createElementEdit(elem);
            setup(ed);
            return ed;
        }

        protected void setup(ElementEdit edit) {
            edit.setDocument(getDocumentTreeView().getDocument());
            final JInternalFrame frame = createInternalFrame(edit);
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    try {
                        frame.show();
                        frame.setMaximum(true);
                    } catch(Exception e) {
                       showException(e);
                    }
                }
            });
        }
    }
}

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