/*******************************************************************************
* Copyright (c) 2000, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.controlexample;
import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.events.*;
class MenuTab extends Tab {
/* Widgets added to the "Menu Style", "MenuItem Style" and "Other" groups */
Button barButton, dropDownButton, popUpButton, noRadioGroupButton, leftToRightButton, rightToLeftButton;
Button checkButton, cascadeButton, pushButton, radioButton, separatorButton;
Button imagesButton, acceleratorsButton, mnemonicsButton, subMenuButton, subSubMenuButton;
Button createButton, closeAllButton;
Group menuItemStyleGroup;
/* Variables used to track the open shells */
int shellCount = 0;
Shell [] shells = new Shell [4];
/**
* Creates the Tab within a given instance of ControlExample.
*/
MenuTab(ControlExample instance) {
super(instance);
}
/**
* Close all the example shells.
*/
void closeAllShells() {
for (int i = 0; i<shellCount; i++) {
if (shells[i] != null & !shells [i].isDisposed ()) {
shells [i].dispose();
}
}
shellCount = 0;
}
/**
* Handle the Create button selection event.
*
* @param event org.eclipse.swt.events.SelectionEvent
*/
public void createButtonSelected(SelectionEvent event) {
/*
* Remember the example shells so they
* can be disposed by the user.
*/
if (shellCount >= shells.length) {
Shell [] newShells = new Shell [shells.length + 4];
System.arraycopy (shells, 0, newShells, 0, shells.length);
shells = newShells;
}
int orientation = 0;
if (leftToRightButton.getSelection()) orientation |= SWT.LEFT_TO_RIGHT;
if (rightToLeftButton.getSelection()) orientation |= SWT.RIGHT_TO_LEFT;
int radioBehavior = 0;
if (noRadioGroupButton.getSelection()) radioBehavior |= SWT.NO_RADIO_GROUP;
/* Create the shell and menu(s) */
Shell shell = new Shell (SWT.SHELL_TRIM | orientation);
shells [shellCount] = shell;
if (barButton.getSelection ()) {
/* Create menu bar. */
Menu menuBar = new Menu(shell, SWT.BAR | radioBehavior);
shell.setMenuBar(menuBar);
hookListeners(menuBar);
if (dropDownButton.getSelection() && cascadeButton.getSelection()) {
/* Create cascade button and drop-down menu in menu bar. */
MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
item.setText(getMenuItemText("Cascade"));
if (imagesButton.getSelection()) item.setImage(instance.images[ControlExample.ciOpenFolder]);
hookListeners(item);
Menu dropDownMenu = new Menu(shell, SWT.DROP_DOWN | radioBehavior);
item.setMenu(dropDownMenu);
hookListeners(dropDownMenu);
/* Create various menu items, depending on selections. */
createMenuItems(dropDownMenu, subMenuButton.getSelection(), subSubMenuButton.getSelection());
}
}
if (popUpButton.getSelection()) {
/* Create pop-up menu. */
Menu popUpMenu = new Menu(shell, SWT.POP_UP | radioBehavior);
shell.setMenu(popUpMenu);
hookListeners(popUpMenu);
/* Create various menu items, depending on selections. */
createMenuItems(popUpMenu, subMenuButton.getSelection(), subSubMenuButton.getSelection());
}
/* Set the size, title and open the shell. */
shell.setSize (300, 100);
shell.setText (ControlExample.getResourceString("Title") + shellCount);
shell.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.drawString(ControlExample.getResourceString("PopupMenuHere"), 20, 20);
}
});
shell.open ();
shellCount++;
}
/**
* Creates the "Control" group.
*/
void createControlGroup () {
/*
* Create the "Control" group. This is the group on the
* right half of each example tab. For MenuTab, it consists of
* the Menu style group, the MenuItem style group and the 'other' group.
*/
controlGroup = new Group (tabFolderPage, SWT.NONE);
controlGroup.setLayout (new GridLayout (2, true));
controlGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
controlGroup.setText (ControlExample.getResourceString("Parameters"));
/* Create a group for the menu style controls */
styleGroup = new Group (controlGroup, SWT.NONE);
styleGroup.setLayout (new GridLayout ());
styleGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
styleGroup.setText (ControlExample.getResourceString("Menu_Styles"));
/* Create a group for the menu item style controls */
menuItemStyleGroup = new Group (controlGroup, SWT.NONE);
menuItemStyleGroup.setLayout (new GridLayout ());
menuItemStyleGroup.setLayoutData (new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
menuItemStyleGroup.setText (ControlExample.getResourceString("MenuItem_Styles"));
/* Create a group for the 'other' controls */
otherGroup = new Group (controlGroup, SWT.NONE);
otherGroup.setLayout (new GridLayout ());
otherGroup.setLayoutData (new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
otherGroup.setText (ControlExample.getResourceString("Other"));
}
/**
* Creates the "Control" widget children.
*/
void createControlWidgets () {
/* Create the menu style buttons */
barButton = new Button (styleGroup, SWT.CHECK);
barButton.setText ("SWT.BAR");
dropDownButton = new Button (styleGroup, SWT.CHECK);
dropDownButton.setText ("SWT.DROP_DOWN");
popUpButton = new Button (styleGroup, SWT.CHECK);
popUpButton.setText ("SWT.POP_UP");
noRadioGroupButton = new Button (styleGroup, SWT.CHECK);
noRadioGroupButton.setText ("SWT.NO_RADIO_GROUP");
leftToRightButton = new Button (styleGroup, SWT.RADIO);
leftToRightButton.setText ("SWT.LEFT_TO_RIGHT");
leftToRightButton.setSelection(true);
rightToLeftButton = new Button (styleGroup, SWT.RADIO);
rightToLeftButton.setText ("SWT.RIGHT_TO_LEFT");
/* Create the menu item style buttons */
cascadeButton = new Button (menuItemStyleGroup, SWT.CHECK);
cascadeButton.setText ("SWT.CASCADE");
checkButton = new Button (menuItemStyleGroup, SWT.CHECK);
checkButton.setText ("SWT.CHECK");
pushButton = new Button (menuItemStyleGroup, SWT.CHECK);
pushButton.setText ("SWT.PUSH");
radioButton = new Button (menuItemStyleGroup, SWT.CHECK);
radioButton.setText ("SWT.RADIO");
separatorButton = new Button (menuItemStyleGroup, SWT.CHECK);
separatorButton.setText ("SWT.SEPARATOR");
/* Create the 'other' buttons */
imagesButton = new Button (otherGroup, SWT.CHECK);
imagesButton.setText (ControlExample.getResourceString("Images"));
acceleratorsButton = new Button (otherGroup, SWT.CHECK);
acceleratorsButton.setText (ControlExample.getResourceString("Accelerators"));
mnemonicsButton = new Button (otherGroup, SWT.CHECK);
mnemonicsButton.setText (ControlExample.getResourceString("Mnemonics"));
subMenuButton = new Button (otherGroup, SWT.CHECK);
subMenuButton.setText (ControlExample.getResourceString("SubMenu"));
subSubMenuButton = new Button (otherGroup, SWT.CHECK);
subSubMenuButton.setText (ControlExample.getResourceString("SubSubMenu"));
/* Create the "create" and "closeAll" buttons (and a 'filler' label to place them) */
new Label(controlGroup, SWT.NONE);
createButton = new Button (controlGroup, SWT.NONE);
createButton.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_END));
createButton.setText (ControlExample.getResourceString("Create_Shell"));
closeAllButton = new Button (controlGroup, SWT.NONE);
closeAllButton.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_BEGINNING));
closeAllButton.setText (ControlExample.getResourceString("Close_All_Shells"));
/* Add the listeners */
createButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
createButtonSelected(e);
}
});
closeAllButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
closeAllShells ();
}
});
subMenuButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
subSubMenuButton.setEnabled (subMenuButton.getSelection ());
}
});
/* Set the default state */
barButton.setSelection (true);
dropDownButton.setSelection (true);
popUpButton.setSelection (true);
cascadeButton.setSelection (true);
checkButton.setSelection (true);
pushButton.setSelection (true);
radioButton.setSelection (true);
separatorButton.setSelection (true);
subSubMenuButton.setEnabled (subMenuButton.getSelection ());
}
/* Create various menu items, depending on selections. */
void createMenuItems(Menu menu, boolean createSubMenu, boolean createSubSubMenu) {
MenuItem item;
if (pushButton.getSelection()) {
item = new MenuItem(menu, SWT.PUSH);
item.setText(getMenuItemText("Push"));
if (acceleratorsButton.getSelection()) item.setAccelerator(SWT.MOD1 + SWT.MOD2 + 'P');
if (imagesButton.getSelection()) item.setImage(instance.images[ControlExample.ciClosedFolder]);
hookListeners(item);
}
if (separatorButton.getSelection()) {
new MenuItem(menu, SWT.SEPARATOR);
}
if (checkButton.getSelection()) {
item = new MenuItem(menu, SWT.CHECK);
item.setText(getMenuItemText("Check"));
if (acceleratorsButton.getSelection()) item.setAccelerator(SWT.MOD1 + SWT.MOD2 + 'C');
if (imagesButton.getSelection()) item.setImage(instance.images[ControlExample.ciOpenFolder]);
hookListeners(item);
}
if (radioButton.getSelection()) {
item = new MenuItem(menu, SWT.RADIO);
item.setText(getMenuItemText("1Radio"));
if (acceleratorsButton.getSelection()) item.setAccelerator(SWT.MOD1 + SWT.MOD2 + '1');
if (imagesButton.getSelection()) item.setImage(instance.images[ControlExample.ciTarget]);
item.setSelection(true);
hookListeners(item);
item = new MenuItem(menu, SWT.RADIO);
item.setText(getMenuItemText("2Radio"));
if (acceleratorsButton.getSelection()) item.setAccelerator(SWT.MOD1 + SWT.MOD2 + '2');
if (imagesButton.getSelection()) item.setImage(instance.images[ControlExample.ciTarget]);
hookListeners(item);
}
if (createSubMenu && cascadeButton.getSelection()) {
/* Create cascade button and drop-down menu for the sub-menu. */
item = new MenuItem(menu, SWT.CASCADE);
item.setText(getMenuItemText("Cascade"));
if (imagesButton.getSelection()) item.setImage(instance.images[ControlExample.ciOpenFolder]);
hookListeners(item);
Menu subMenu = new Menu(menu.getShell(), SWT.DROP_DOWN);
item.setMenu(subMenu);
hookListeners(subMenu);
createMenuItems(subMenu, createSubSubMenu, false);
}
}
String getMenuItemText(String item) {
boolean cascade = item.equals("Cascade");
boolean mnemonic = mnemonicsButton.getSelection();
boolean accelerator = acceleratorsButton.getSelection();
char acceleratorKey = item.charAt(0);
if (mnemonic && accelerator && !cascade) {
return ControlExample.getResourceString(item + "WithMnemonic") + "\tCtrl+Shift+" + acceleratorKey;
}
if (accelerator && !cascade) {
return ControlExample.getResourceString(item) + "\tCtrl+Shift+" + acceleratorKey;
}
if (mnemonic) {
return ControlExample.getResourceString(item + "WithMnemonic");
}
return ControlExample.getResourceString(item);
}
/**
* Gets the text for the tab folder item.
*/
String getTabText () {
return "Menu";
}
}