Examples with KeyListener org.eclipse.swt.events.KeyListener used on opensource projects

Example 16 with KeyListener

use of org.eclipse.swt.events.KeyListener in project knime-core by knime.

the class WrappedMultipleNodeDialog method createButtonsForButtonBar.

/**
 * {@inheritDoc}
 */
@Override
protected void createButtonsForButtonBar(final Composite parent) {
    // WORKAROUND: can't use IDialogConstants.OK_ID here, as this always
    // closes the dialog, regardless if the settings couldn't be applied.
    final Button btnOK = createButton(parent, IDialogConstants.NEXT_ID, IDialogConstants.OK_LABEL, false);
    final Button btnCancel = createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
    ((GridLayout) parent.getLayout()).numColumns++;
    this.swtKeyListener = new KeyListener() {

        /**
         * {@inheritDoc}
         */
        @Override
        public void keyReleased(final KeyEvent ke) {
            // TODO there's no point to this presently since we don't ever change the text
            if (ke.keyCode == SWT.MOD1) {
                btnOK.setText("OK");
            }
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void keyPressed(final KeyEvent ke) {
            if (ke.keyCode == SWT.ESC) {
                // close dialog on ESC
                doCancel();
            }
            // TODO this does not mimic the same behavior as found in WrappedNodeDialog to change the OK button text
            if ((ke.keyCode == SWT.CR) && ((ke.stateMask == SWT.MOD1) || (ke.stateMask == SWT.SHIFT + SWT.MOD1))) {
                // force OK - Execute when CTRL/Command and ENTER is pressed
                // open first out-port view if SHIFT is pressed
                doOK(ke);
            }
        }
    };
    this.awtKeyListener = new KeyAdapter() {

        @Override
        public void keyReleased(final java.awt.event.KeyEvent ke) {
            // TODO there's no point to this presently since we don't ever change the text
            int menuAccelerator = (Platform.OS_MACOSX.equals(Platform.getOS())) ? java.awt.event.KeyEvent.VK_META : java.awt.event.KeyEvent.VK_CONTROL;
            if (ke.getKeyCode() == menuAccelerator) {
                getShell().getDisplay().asyncExec(() -> {
                    btnOK.setText("OK");
                });
            }
        }

        @Override
        public void keyPressed(final java.awt.event.KeyEvent ke) {
            if (ke.getKeyCode() == java.awt.event.KeyEvent.VK_ESCAPE) {
                // close dialog on ESC
                getShell().getDisplay().asyncExec(() -> {
                    doCancel();
                });
            }
            // TODO this does not mimic the same behavior as found in WrappedNodeDialog to change the OK button text
            int modifierKey = (Platform.OS_MACOSX.equals(Platform.getOS())) ? InputEvent.META_DOWN_MASK : InputEvent.CTRL_DOWN_MASK;
            if ((ke.getKeyCode() == java.awt.event.KeyEvent.VK_ENTER) && ((ke.getModifiersEx() & modifierKey) != 0)) {
                getShell().getDisplay().asyncExec(() -> {
                    // force OK - Execute when CTRL/Command and ENTER is pressed
                    if (doApply()) {
                        runOK();
                    }
                });
            }
        }
    };
    if (!Platform.OS_MACOSX.equals(Platform.getOS())) {
        btnOK.addKeyListener(this.swtKeyListener);
        btnCancel.addKeyListener(this.swtKeyListener);
        m_wrapper.addKeyListener(this.swtKeyListener);
    }
    // Register listeners that notify the content object, which
    // in turn notify the dialog about the particular event.
    btnOK.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(final SelectionEvent se) {
            // OK only
            doOK(se);
        }
    });
    btnCancel.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(final SelectionEvent se) {
            doCancel();
        }
    });
}

Example 17 with KeyListener

use of org.eclipse.swt.events.KeyListener in project knime-core by knime.

the class WrappedNodeDialog method createButtonsForButtonBar.

/**
 * {@inheritDoc}
 */
@Override
protected void createButtonsForButtonBar(final Composite parent) {
    // WORKAROUND: can't use IDialogConstants.OK_ID here, as this always
    // closes the dialog, regardless if the settings couldn't be applied.
    final Button btnOK = createButton(parent, IDialogConstants.NEXT_ID, IDialogConstants.OK_LABEL, false);
    final Button btnApply = createButton(parent, IDialogConstants.FINISH_ID, "Apply", false);
    final Button btnCancel = createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
    ((GridLayout) parent.getLayout()).numColumns++;
    final Button btnHelp = new Button(parent, SWT.PUSH | SWT.FLAT);
    Image img = ImageRepository.getIconImage(SharedImages.Help);
    btnHelp.setImage(img);
    boolean writeProtected = m_dialogPane.isWriteProtected();
    btnOK.setEnabled(!writeProtected);
    btnApply.setEnabled(!writeProtected);
    this.swtKeyListener = new KeyListener() {

        /**
         * {@inheritDoc}
         */
        @Override
        public void keyReleased(final KeyEvent ke) {
            if (ke.keyCode == SWT.MOD1) {
                btnOK.setText("OK");
            }
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void keyPressed(final KeyEvent ke) {
            if ((ke.keyCode == SWT.ESC) && m_dialogPane.closeOnESC()) {
                // close dialog on ESC
                doCancel();
            }
            // this locks the WFM so avoid calling it each time.
            Predicate<NodeContainer> canExecutePredicate = n -> n.getParent().canExecuteNode(n.getID());
            if (ke.keyCode == SWT.MOD1 && canExecutePredicate.test(m_nodeContainer)) {
                // change OK button label, when CTRL/COMMAND is pressed
                btnOK.setText("OK - Execute");
            }
            if ((ke.keyCode == SWT.CR) && ((ke.stateMask & SWT.MOD1) != 0)) {
                // Bug 3942: transfer focus to OK button to have all component to auto-commit their changes
                btnOK.forceFocus();
                // force OK - Execute when CTRL/COMMAND and ENTER is pressed
                // open first out-port view if SHIFT is pressed
                ke.doit = doApply();
                if (ke.doit) {
                    runOK(canExecutePredicate.test(m_nodeContainer), (ke.stateMask & SWT.SHIFT) != 0);
                }
                // reset ok button state/label
                if (!ke.doit) {
                    btnOK.setText("OK");
                }
            }
        }
    };
    this.awtKeyListener = new KeyAdapter() {

        @Override
        public void keyReleased(final java.awt.event.KeyEvent ke) {
            int menuAccelerator = (Platform.OS_MACOSX.equals(Platform.getOS())) ? java.awt.event.KeyEvent.VK_META : java.awt.event.KeyEvent.VK_CONTROL;
            if (ke.getKeyCode() == menuAccelerator) {
                getShell().getDisplay().asyncExec(() -> {
                    btnOK.setText("OK");
                });
            }
        }

        @Override
        public void keyPressed(final java.awt.event.KeyEvent ke) {
            if ((ke.getKeyCode() == java.awt.event.KeyEvent.VK_ESCAPE) && m_dialogPane.closeOnESC()) {
                // close dialog on ESC
                getShell().getDisplay().asyncExec(() -> {
                    doCancel();
                });
            }
            // this locks the WFM so avoid calling it each time.
            final Predicate<NodeContainer> canExecutePredicate = n -> n.getParent().canExecuteNode(n.getID());
            int menuAccelerator = (Platform.OS_MACOSX.equals(Platform.getOS())) ? java.awt.event.KeyEvent.VK_META : java.awt.event.KeyEvent.VK_CONTROL;
            if ((ke.getKeyCode() == menuAccelerator) && canExecutePredicate.test(m_nodeContainer)) {
                // change OK button label, when CTRL/COMMAND is pressed
                getShell().getDisplay().asyncExec(() -> {
                    btnOK.setText("OK - Execute");
                });
            }
            int modifierKey = (Platform.OS_MACOSX.equals(Platform.getOS())) ? InputEvent.META_DOWN_MASK : InputEvent.CTRL_DOWN_MASK;
            if ((ke.getKeyCode() == java.awt.event.KeyEvent.VK_ENTER) && ((ke.getModifiersEx() & modifierKey) != 0)) {
                getShell().getDisplay().asyncExec(() -> {
                    // Bug 3942: transfer focus to OK button to have all component to auto-commit their changes
                    btnOK.forceFocus();
                    // open first out-port view if SHIFT is pressed
                    if (doApply()) {
                        runOK(canExecutePredicate.test(m_nodeContainer), ((ke.getModifiersEx() & InputEvent.SHIFT_DOWN_MASK) != 0));
                    } else {
                        // reset ok button state/label
                        btnOK.setText("OK");
                    }
                });
            }
        }
    };
    if (!Platform.OS_MACOSX.equals(Platform.getOS())) {
        btnOK.addKeyListener(this.swtKeyListener);
        btnApply.addKeyListener(this.swtKeyListener);
        btnCancel.addKeyListener(this.swtKeyListener);
        m_wrapper.addKeyListener(this.swtKeyListener);
    }
    // Register listeners that notify the content object, which
    // in turn notify the dialog about the particular event.
    btnOK.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(final SelectionEvent se) {
            if ((se.stateMask & SWT.SHIFT) != 0 && (se.stateMask & SWT.MOD1) != 0) {
                // OK plus execute and open first out-port view
                doOK(se, true, true);
            } else if ((se.stateMask & SWT.MOD1) != 0) {
                // OK plus execute only
                doOK(se, true, false);
            } else {
                // OK only
                doOK(se, false, false);
            }
            if (!se.doit) {
                // reset ok button state/label
                btnOK.setText("OK");
            }
        }
    });
    btnApply.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(final SelectionEvent se) {
            se.doit = doApply();
            // reset ok button state/label
            btnOK.setText("OK");
        }
    });
    btnCancel.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(final SelectionEvent se) {
            doCancel();
        }
    });
    btnHelp.addSelectionListener(new SelectionAdapter() {

        /**
         * {@inheritDoc}
         */
        @Override
        public void widgetSelected(final SelectionEvent e) {
            doOpenNodeDescription();
        }
    });
}

Example 18 with KeyListener

use of org.eclipse.swt.events.KeyListener in project eclipse.platform.swt by eclipse.

the class Bug287038_TableKeyEvent method main.

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    final Table table = new Table(shell, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
    table.setLinesVisible(true);
    for (int i = 0; i < 2; i++) {
        TableColumn column = new TableColumn(table, SWT.NONE);
        column.setWidth(100);
    }
    String[] itemsToAdd = new String[] { "Cheese", "Potatoes", "Rocks", "Bacon", "Tree", "Forest", "Chocolate", "Broccoli", "Turnip", "Squash", "Carrot" };
    int i = 0;
    for (String s : itemsToAdd) {
        TableItem item = new TableItem(table, SWT.NONE);
        item.setText(new String[] { s, "" + i++ });
    }
    table.addKeyListener(new KeyListener() {

        @Override
        public void keyPressed(KeyEvent e) {
            System.out.println(e.character);
        }

        @Override
        public void keyReleased(KeyEvent e) {
            System.out.println(e.character);
        }
    });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

Example 19 with KeyListener

use of org.eclipse.swt.events.KeyListener in project eclipse.platform.swt by eclipse.

the class Snippet359 method main.

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    final Combo combo = new Combo(shell, SWT.DROP_DOWN);
    combo.addKeyListener(new KeyListener() {

        @Override
        public void keyReleased(KeyEvent e) {
            if (e.keyCode == SWT.CR) {
                combo.add(combo.getText());
            }
        }

        @Override
        public void keyPressed(KeyEvent e) {
            System.out.println("caret position: " + combo.getCaretPosition());
            System.out.println("caret location: " + combo.getCaretLocation());
        }
    });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

Example 20 with KeyListener

use of org.eclipse.swt.events.KeyListener in project eclipse.platform.swt by eclipse.

the class Snippet360 method main.

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new GridLayout());
    // create a a tree with 3 columns and fill with data
    final Tree tree = new Tree(shell, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
    tree.setLayoutData(new GridData(GridData.FILL_BOTH));
    tree.setHeaderVisible(true);
    TreeColumn column1 = new TreeColumn(tree, SWT.NONE);
    TreeColumn column2 = new TreeColumn(tree, SWT.NONE);
    TreeColumn column3 = new TreeColumn(tree, SWT.NONE);
    for (int i = 0; i < 9; i++) {
        TreeItem item = new TreeItem(tree, SWT.NONE);
        item.setText(new String[] { "root " + i + " 0", "root " + i + " 1", "root " + i + " 2" });
        for (int j = 0; j < 9; j++) {
            TreeItem item2 = new TreeItem(item, SWT.NONE);
            item2.setText(new String[] { "child " + j + " 0", "child " + j + " 1", "child " + j + " 2" });
            TreeItem current = item2;
            for (int k = 0; k < 5; k++) {
                TreeItem item3 = new TreeItem(current, SWT.NONE);
                item3.setText(new String[] { "descendent " + k + " 0", "descendent " + k + " 1", "descendent " + k + " 2" });
                current = item3;
            }
        }
    }
    column1.setWidth(200);
    column2.setWidth(100);
    column3.setWidth(100);
    // create a TreeCursor to navigate around the tree
    final TreeCursor cursor = new TreeCursor(tree, SWT.NONE);
    // create an editor to edit the cell when the user hits "ENTER"
    // while over a cell in the tree
    final ControlEditor editor = new ControlEditor(cursor);
    editor.grabHorizontal = true;
    editor.grabVertical = true;
    cursor.addSelectionListener(new SelectionAdapter() {

        // when the TreeEditor is over a cell, select the corresponding row
        // in the tree
        @Override
        public void widgetSelected(SelectionEvent e) {
            tree.setSelection(new TreeItem[] { cursor.getRow() });
        }

        // when the user hits "ENTER" in the TreeCursor, pop up a text
        // editor so that they can change the text of the cell
        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            final Text text = new Text(cursor, SWT.NONE);
            TreeItem row = cursor.getRow();
            int column = cursor.getColumn();
            text.setText(row.getText(column));
            text.addKeyListener(keyPressedAdapter(event -> {
                // when the user hits "ENTER"
                if (event.character == SWT.CR) {
                    TreeItem localRow = cursor.getRow();
                    int localColumn = cursor.getColumn();
                    localRow.setText(localColumn, text.getText());
                    text.dispose();
                }
                // close the text editor when the user hits "ESC"
                if (event.character == SWT.ESC) {
                    text.dispose();
                }
            }));
            editor.setEditor(text);
            text.setFocus();
        }
    });
    // Hide the TreeCursor when the user hits the "MOD1" or "MOD2" key.
    // This allows the user to select multiple items in the tree.
    cursor.addKeyListener(keyPressedAdapter(e -> {
        if (e.keyCode == SWT.MOD1 || e.keyCode == SWT.MOD2 || (e.stateMask & SWT.MOD1) != 0 || (e.stateMask & SWT.MOD2) != 0) {
            cursor.setVisible(false);
        }
    }));
    // Show the TreeCursor when the user releases the "MOD2" or "MOD1" key.
    // This signals the end of the multiple selection task.
    tree.addKeyListener(new KeyListener() {

        @Override
        public void keyReleased(KeyEvent e) {
            if (e.keyCode == SWT.MOD1 && (e.stateMask & SWT.MOD2) != 0)
                return;
            if (e.keyCode == SWT.MOD2 && (e.stateMask & SWT.MOD1) != 0)
                return;
            if (e.keyCode != SWT.MOD1 && (e.stateMask & SWT.MOD1) != 0)
                return;
            if (e.keyCode != SWT.MOD2 && (e.stateMask & SWT.MOD2) != 0)
                return;
            TreeItem[] selection = tree.getSelection();
            TreeItem row = (selection.length == 0) ? tree.getItem(tree.indexOf(tree.getTopItem())) : selection[0];
            tree.showItem(row);
            cursor.setSelection(row, cursor.getColumn());
            cursor.setVisible(true);
            cursor.setFocus();
        }

        @Override
        public void keyPressed(KeyEvent e) {
            switch(e.keyCode) {
                case SWT.ARROW_LEFT:
                case SWT.ARROW_RIGHT:
                    {
                        if ((e.stateMask & SWT.MOD1) != 0) {
                            TreeItem[] selection = tree.getSelection();
                            if (selection.length > 0) {
                                selection[0].setExpanded(e.keyCode == SWT.ARROW_RIGHT);
                            }
                            break;
                        }
                    }
            }
        }
    });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}