Example usage for org.eclipse.swt.widgets Tree Tree

Introduction

In this page you can find the example usage for org.eclipse.swt.widgets Tree Tree.

Prototype

public Tree(Composite parent, int style) 

Source Link

Document

Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

Usage

From source file:Snippet80.java

public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    final Tree tree = new Tree(shell, SWT.BORDER | SWT.MULTI);
    for (int i = 0; i < 2; i++) {
        TreeItem item = new TreeItem(tree, SWT.NONE);
        item.setText("item " + i);
        for (int j = 0; j < 2; j++) {
            TreeItem subItem = new TreeItem(item, SWT.NONE);
            subItem.setText("item " + j);
            for (int k = 0; k < 2; k++) {
                TreeItem subsubItem = new TreeItem(subItem, SWT.NONE);
                subsubItem.setText("item " + k);
            }/*from www. java  2 s . co m*/
        }
    }

    tree.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            TreeItem[] selection = tree.getSelection();
            TreeItem[] revisedSelection = new TreeItem[0];
            for (int i = 0; i < selection.length; i++) {
                String text = selection[i].getText();
                if (text.indexOf("1") > 0) {
                    TreeItem[] newSelection = new TreeItem[revisedSelection.length + 1];
                    System.arraycopy(revisedSelection, 0, newSelection, 0, revisedSelection.length);
                    newSelection[revisedSelection.length] = selection[i];
                    revisedSelection = newSelection;
                }
            }
            tree.setSelection(revisedSelection);
        }
    });

    shell.setSize(300, 300);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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From source file:TreeEditorSampleDemo.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Text Tree Editor");
    shell.setLayout(new FillLayout());

    final Tree tree = new Tree(shell, SWT.SINGLE);
    for (int i = 0; i < 3; i++) {
        TreeItem iItem = new TreeItem(tree, SWT.NONE);
        iItem.setText("Item " + (i + 1));
        for (int j = 0; j < 3; j++) {
            TreeItem jItem = new TreeItem(iItem, SWT.NONE);
            jItem.setText("Sub Item " + (j + 1));
            for (int k = 0; k < 3; k++) {
                new TreeItem(jItem, SWT.NONE).setText("Sub Sub Item " + (k + 1));
            }/* ww w  .ja  v  a 2 s .c om*/
            jItem.setExpanded(true);
        }
        iItem.setExpanded(true);
    }

    final TreeEditor editor = new TreeEditor(tree);
    editor.horizontalAlignment = SWT.LEFT;
    editor.grabHorizontal = true;

    tree.addKeyListener(new KeyAdapter() {
        public void keyPressed(KeyEvent event) {
            if (event.keyCode == SWT.F2 && tree.getSelectionCount() == 1) {
                final TreeItem item = tree.getSelection()[0];

                final Text text = new Text(tree, SWT.NONE);
                text.setText(item.getText());
                text.selectAll();
                text.setFocus();

                text.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent event) {
                        item.setText(text.getText());
                        text.dispose();
                    }
                });

                text.addKeyListener(new KeyAdapter() {
                    public void keyPressed(KeyEvent event) {
                        switch (event.keyCode) {
                        case SWT.CR:
                            item.setText(text.getText());
                        case SWT.ESC:
                            text.dispose();
                            break;
                        }
                    }
                });
                editor.setEditor(text, item);
            }
        }
    });

    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
    display.dispose();
}

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From source file:MainClass.java

public static void main(String[] a) {
    final Display d = new Display();
    final Shell s = new Shell(d);

    s.setSize(250, 200);/*from w w w. ja v  a 2  s .  co m*/
    s.setText("A Tree Shell Example");
    s.setLayout(new FillLayout(SWT.HORIZONTAL));
    final Tree t = new Tree(s, SWT.SINGLE | SWT.BORDER);
    final TreeItem child1 = new TreeItem(t, SWT.NONE, 0);
    child1.setText("1");
    //    child1.setImage(new Image(d, "c:\\icons\\folder.gif"));
    final TreeItem child2 = new TreeItem(t, SWT.NONE, 1);
    child2.setText("2");
    final TreeItem child2a = new TreeItem(child2, SWT.NONE, 0);
    child2a.setText("2A");
    final TreeItem child2b = new TreeItem(child2, SWT.NONE, 1);
    child2b.setText("2B");
    final TreeItem child3 = new TreeItem(t, SWT.NONE, 2);
    child3.setText("3");

    final List l = new List(s, SWT.BORDER | SWT.SINGLE);

    t.addTreeListener(new TreeListener() {
        public void treeExpanded(TreeEvent e) {
            TreeItem ti = (TreeItem) e.item;
            //      ti.setImage(new Image(d, "c:\\icons\\open.gif"));
        }

        public void treeCollapsed(TreeEvent e) {
            TreeItem ti = (TreeItem) e.item;
            //        ti.setImage(new Image(d, "c:\\icons\\folder.gif"));
        }
    });

    t.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            TreeItem ti = (TreeItem) e.item;
            populateList(ti.getText());
        }

        private void populateList(String type) {
            if (type.equals("1")) {
                l.removeAll();
                l.add("1");
                l.add("2");
            }
            if (type.equals("2")) {
                l.removeAll();
            }
            if (type.equals("2A")) {
                l.removeAll();
                l.add("3");
                l.add("4");
            }
            if (type.equals("2B")) {
                l.removeAll();
                l.add("5");
                l.add("6");
            }
            if (type.equals("3")) {
                l.removeAll();
                l.add("7");
                l.add("8");
            }
        }
    });

    s.open();
    while (!s.isDisposed()) {
        if (!d.readAndDispatch())
            d.sleep();
    }
    d.dispose();
}

---

From source file:Snippet8.java

public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("Lazy Tree");
    shell.setLayout(new FillLayout());
    final Tree tree = new Tree(shell, SWT.BORDER);
    File[] roots = File.listRoots();
    for (int i = 0; i < roots.length; i++) {
        TreeItem root = new TreeItem(tree, 0);
        root.setText(roots[i].toString());
        root.setData(roots[i]);/*w w w .j av  a2s . c  o m*/
        new TreeItem(root, 0);
    }
    tree.addListener(SWT.Expand, new Listener() {
        public void handleEvent(final Event event) {
            final TreeItem root = (TreeItem) event.item;
            TreeItem[] items = root.getItems();
            for (int i = 0; i < items.length; i++) {
                if (items[i].getData() != null)
                    return;
                items[i].dispose();
            }
            File file = (File) root.getData();
            File[] files = file.listFiles();
            if (files == null)
                return;
            for (int i = 0; i < files.length; i++) {
                TreeItem item = new TreeItem(root, 0);
                item.setText(files[i].getName());
                item.setData(files[i]);
                if (files[i].isDirectory()) {
                    new TreeItem(item, 0);
                }
            }
        }
    });
    Point size = tree.computeSize(300, SWT.DEFAULT);
    int width = Math.max(300, size.x);
    int height = Math.max(300, size.y);
    shell.setSize(shell.computeSize(width, height));
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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From source file:TreeEditorButton.java

public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("Text Tree Editor");
    shell.setLayout(new FillLayout());

    final Tree tree = new Tree(shell, SWT.SINGLE);
    for (int i = 0; i < 3; i++) {
        TreeItem iItem = new TreeItem(tree, SWT.NONE);
        iItem.setText("Item " + (i + 1));
        for (int j = 0; j < 3; j++) {
            TreeItem jItem = new TreeItem(iItem, SWT.NONE);
            jItem.setText("Sub Item " + (j + 1));
            for (int k = 0; k < 3; k++) {
                new TreeItem(jItem, SWT.NONE).setText("Sub Sub Item " + (k + 1));
            }/*from  www.j av a 2s .  c o m*/
            jItem.setExpanded(true);
        }
        iItem.setExpanded(true);
    }

    final TreeEditor editor = new TreeEditor(tree);
    editor.horizontalAlignment = SWT.LEFT;
    editor.grabHorizontal = true;

    tree.addMouseListener(new MouseAdapter() {
        public void mouseDown(MouseEvent event) {
            final TreeItem item = tree.getSelection()[0];

            final Button bn = new Button(tree, SWT.NONE);
            bn.setText("click");
            bn.setFocus();

            bn.addSelectionListener(new SelectionListener() {

                public void widgetSelected(SelectionEvent arg0) {
                    int style = SWT.ICON_QUESTION | SWT.YES | SWT.NO;

                    MessageBox messageBox = new MessageBox(shell, style);
                    messageBox.setMessage("Message");
                    int rc = messageBox.open();

                    item.setText(rc + "");
                    bn.dispose();
                }

                public void widgetDefaultSelected(SelectionEvent arg0) {
                }
            });

            editor.setEditor(bn, item);
        }
    });

    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet102.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 102");
    Tree tree = new Tree(shell, SWT.BORDER | SWT.MULTI);
    Rectangle clientArea = shell.getClientArea();
    tree.setBounds(clientArea.x, clientArea.y, 200, 200);
    for (int i = 0; i < 12; i++) {
        TreeItem item = new TreeItem(tree, SWT.NONE);
        item.setText("Item " + i);
    }/*from  w ww  .j a  v a 2s . c o m*/
    TreeItem item = new TreeItem(tree, SWT.NONE, 1);
    TreeItem[] items = tree.getItems();
    int index = 0;
    while (index < items.length && items[index] != item)
        index++;
    item.setText("*** New Item " + index + " ***");
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet90.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 90");
    final Tree tree = new Tree(shell, SWT.BORDER | SWT.MULTI);
    for (int i = 0; i < 12; i++) {
        TreeItem treeItem = new TreeItem(tree, SWT.NONE);
        treeItem.setText("Item " + i);
    }//from   www . ja v  a  2  s . com
    tree.addListener(SWT.MouseDown, event -> {
        Point point = new Point(event.x, event.y);
        TreeItem item = tree.getItem(point);
        if (item != null) {
            System.out.println("Mouse down: " + item);
        }
    });
    Rectangle clientArea = shell.getClientArea();
    tree.setBounds(clientArea.x, clientArea.y, 200, 200);
    shell.setSize(300, 300);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet114.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 114");
    Tree tree = new Tree(shell, SWT.CHECK | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    for (int i = 0; i < 12; i++) {
        TreeItem item = new TreeItem(tree, SWT.NONE);
        item.setText("Item " + i);
    }//from  w  w w  .j av  a2 s .  c o  m
    Rectangle clientArea = shell.getClientArea();
    tree.setBounds(clientArea.x, clientArea.y, 100, 100);
    tree.addListener(SWT.Selection, event -> {
        String string = event.detail == SWT.CHECK ? "Checked" : "Selected";
        System.out.println(event.item + " " + string);
    });
    shell.setSize(200, 200);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet97.java

public static void main(String[] args) {
    final Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 97");
    final Tree tree = new Tree(shell, SWT.BORDER | SWT.MULTI);
    final Menu menu = new Menu(shell, SWT.POP_UP);
    tree.setMenu(menu);/*from   ww  w  .j  av a 2  s  .c  o m*/
    for (int i = 0; i < 12; i++) {
        TreeItem item = new TreeItem(tree, SWT.NONE);
        item.setText("Item " + i);
    }
    menu.addListener(SWT.Show, event -> {
        MenuItem[] menuItems = menu.getItems();
        for (int i1 = 0; i1 < menuItems.length; i1++) {
            menuItems[i1].dispose();
        }
        TreeItem[] treeItems = tree.getSelection();
        for (int i2 = 0; i2 < treeItems.length; i2++) {
            MenuItem menuItem = new MenuItem(menu, SWT.PUSH);
            menuItem.setText(treeItems[i2].getText());
        }
    });
    Rectangle clientArea = shell.getClientArea();
    tree.setBounds(clientArea.x, clientArea.y, 200, 200);
    shell.setSize(300, 300);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet15.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 15");
    shell.setLayout(new FillLayout());
    final Tree tree = new Tree(shell, SWT.BORDER);
    for (int i = 0; i < 4; i++) {
        TreeItem iItem = new TreeItem(tree, 0);
        iItem.setText("TreeItem (0) -" + i);
        for (int j = 0; j < 4; j++) {
            TreeItem jItem = new TreeItem(iItem, 0);
            jItem.setText("TreeItem (1) -" + j);
            for (int k = 0; k < 4; k++) {
                TreeItem kItem = new TreeItem(jItem, 0);
                kItem.setText("TreeItem (2) -" + k);
                for (int l = 0; l < 4; l++) {
                    TreeItem lItem = new TreeItem(kItem, 0);
                    lItem.setText("TreeItem (3) -" + l);
                }//from  w  ww  .  j  a  v  a2  s  .c  o m
            }
        }
    }
    shell.setSize(200, 200);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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