/*******************************************************************************
* Copyright (c) 2000, 2007 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.SWT;
import org.eclipse.swt.events.MenuAdapter;
import org.eclipse.swt.events.MenuEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.CoolBar;
import org.eclipse.swt.widgets.CoolItem;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem;
import org.eclipse.swt.widgets.Widget;
class CoolBarTab extends Tab {
/**
* Listens to widgetSelected() events on SWT.DROP_DOWN type CoolItems and opens/closes a menu when appropriate.
*/
class CoolItemSelectionListener extends SelectionAdapter {
private Menu menu = null;
public void widgetSelected(SelectionEvent event) {
/**
* A selection event will be fired when the cool item is selected by its gripper or if the drop down arrow
* (or 'chevron') is selected. Examine the event detail to determine where the widget was selected.
*/
if (event.detail == SWT.ARROW) {
/*
* If the popup menu is already up (i.e. user pressed arrow twice), then dispose it.
*/
if (menu != null) {
menu.dispose();
menu = null;
return;
}
/* Get the cool item and convert its bounds to display coordinates. */
CoolItem coolItem = (CoolItem) event.widget;
Rectangle itemBounds = coolItem.getBounds();
itemBounds.width = event.x - itemBounds.x;
Point pt = coolBar.toDisplay(new Point(itemBounds.x, itemBounds.y));
itemBounds.x = pt.x;
itemBounds.y = pt.y;
/* Get the toolbar from the cool item. */
ToolBar toolBar = (ToolBar) coolItem.getControl();
ToolItem[] tools = toolBar.getItems();
int toolCount = tools.length;
/*
* Convert the bounds of each tool item to display coordinates, and determine which ones are past the
* bounds of the cool item.
*/
int i = 0;
while (i < toolCount) {
Rectangle toolBounds = tools[i].getBounds();
pt = toolBar.toDisplay(new Point(toolBounds.x, toolBounds.y));
toolBounds.x = pt.x;
toolBounds.y = pt.y;
Rectangle intersection = itemBounds.intersection(toolBounds);
if (!intersection.equals(toolBounds))
break;
i++;
}
/* Create a pop-up menu with items for each of the hidden buttons. */
menu = new Menu(coolBar);
for (int j = i; j < toolCount; j++) {
ToolItem tool = tools[j];
Image image = tool.getImage();
if (image == null)
new MenuItem(menu, SWT.SEPARATOR);
else if ((tool.getStyle() & SWT.DROP_DOWN) != 0) {
MenuItem menuItem = new MenuItem(menu, SWT.CASCADE);
menuItem.setImage(image);
String text = tool.getToolTipText();
if (text != null)
menuItem.setText(text);
Menu m = new Menu(menu);
menuItem.setMenu(m);
for (int k = 0; k < 9; ++k) {
text = ControlExample.getResourceString("DropDownData_" + k);
if (text.length() != 0) {
MenuItem mi = new MenuItem(m, SWT.NONE);
mi.setText(text);
/* Application code to perform the action for the submenu item would go here. */
} else
new MenuItem(m, SWT.SEPARATOR);
}
} else {
MenuItem menuItem = new MenuItem(menu, SWT.NONE);
menuItem.setImage(image);
String text = tool.getToolTipText();
if (text != null)
menuItem.setText(text);
}
/* Application code to perform the action for the menu item would go here. */
}
/*
* Display the pop-up menu at the lower left corner of the arrow button. Dispose the menu when the user
* is done with it.
*/
pt = coolBar.toDisplay(new Point(event.x, event.y));
menu.setLocation(pt.x, pt.y);
menu.setVisible(true);
while (menu != null && !menu.isDisposed() && menu.isVisible())
if (!display.readAndDispatch())
display.sleep();
menu.dispose();
menu = null;
}
}
}
/**
* Listens to widgetSelected() events on SWT.DROP_DOWN type ToolItems and opens/closes a menu when appropriate.
*/
class DropDownSelectionListener extends SelectionAdapter {
private Menu menu = null;
private boolean visible = false;
public void widgetSelected(SelectionEvent event) {
// Create the menu if it has not already been created
if (menu == null) {
// Lazy create the menu.
menu = new Menu(shell);
menu.addMenuListener(new MenuAdapter() {
public void menuHidden(MenuEvent e) {
visible = false;
}
});
for (int i = 0; i < 9; ++i) {
final String text = ControlExample.getResourceString("DropDownData_" + i);
if (text.length() != 0) {
MenuItem menuItem = new MenuItem(menu, SWT.NONE);
menuItem.setText(text);
/*
* Add a menu selection listener so that the menu is hidden when the user selects an item from
* the drop down menu.
*/
menuItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
setMenuVisible(false);
}
});
} else
new MenuItem(menu, SWT.SEPARATOR);
}
}
/**
* A selection event will be fired when a drop down tool item is selected in the main area and in the drop
* down arrow. Examine the event detail to determine where the widget was selected.
*/
if (event.detail == SWT.ARROW) {
/*
* The drop down arrow was selected.
*/
if (visible)
// Hide the menu to give the Arrow the appearance of being a toggle button.
setMenuVisible(false);
else {
// Position the menu below and vertically aligned with the the drop down tool button.
final ToolItem toolItem = (ToolItem) event.widget;
final ToolBar toolBar = toolItem.getParent();
Rectangle toolItemBounds = toolItem.getBounds();
Point point = toolBar.toDisplay(new Point(toolItemBounds.x, toolItemBounds.y));
menu.setLocation(point.x, point.y + toolItemBounds.height);
setMenuVisible(true);
}
} else {
/*
* Main area of drop down tool item selected. An application would invoke the code to perform the action
* for the tool item.
*/
}
}
private void setMenuVisible(boolean visible) {
menu.setVisible(visible);
this.visible = visible;
}
}
/* Example widgets and group that contains them */
CoolBar coolBar;
Group coolBarGroup;
Button dropDownButton, flatButton;
/* Style widgets added to the "Style" group */
Button horizontalButton, verticalButton;
/* Other widgets added to the "Other" group */
Button lockedButton;
int[] order;
CoolItem pushItem, dropDownItem, radioItem, checkItem, textItem;
Point[] sizes;
int[] wrapIndices;
/**
* Creates the Tab within a given instance of ControlExample.
*/
CoolBarTab(ControlExample instance) {
super(instance);
}
/**
* Gets the short text for the tab folder item.
*/
public String getShortTabText() {
return "CB";
}
/**
* Creates the "Example" group.
*/
void createExampleGroup() {
super.createExampleGroup();
coolBarGroup = new Group(exampleGroup, SWT.NONE);
coolBarGroup.setLayout(new GridLayout());
coolBarGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
coolBarGroup.setText("CoolBar");
}
/**
* Creates the "Example" widgets.
*/
void createExampleWidgets() {
int style = getDefaultStyle(), itemStyle = 0;
/* Compute the widget, item, and item toolBar styles */
int toolBarStyle = SWT.FLAT;
boolean vertical = false;
if (horizontalButton.getSelection()) {
style |= SWT.HORIZONTAL;
toolBarStyle |= SWT.HORIZONTAL;
}
if (verticalButton.getSelection()) {
style |= SWT.VERTICAL;
toolBarStyle |= SWT.VERTICAL;
vertical = true;
}
if (borderButton.getSelection())
style |= SWT.BORDER;
if (flatButton.getSelection())
style |= SWT.FLAT;
if (dropDownButton.getSelection())
itemStyle |= SWT.DROP_DOWN;
/*
* Create the example widgets.
*/
coolBar = new CoolBar(coolBarGroup, style);
/* Create the push button toolbar cool item */
ToolBar toolBar = new ToolBar(coolBar, toolBarStyle);
ToolItem item = new ToolItem(toolBar, SWT.PUSH);
item.setImage(instance.images[ControlExample.ciClosedFolder]);
item.setToolTipText("SWT.PUSH");
item = new ToolItem(toolBar, SWT.PUSH);
item.setImage(instance.images[ControlExample.ciOpenFolder]);
item.setToolTipText("SWT.PUSH");
item = new ToolItem(toolBar, SWT.PUSH);
item.setImage(instance.images[ControlExample.ciTarget]);
item.setToolTipText("SWT.PUSH");
item = new ToolItem(toolBar, SWT.SEPARATOR);
item = new ToolItem(toolBar, SWT.PUSH);
item.setImage(instance.images[ControlExample.ciClosedFolder]);
item.setToolTipText("SWT.PUSH");
item = new ToolItem(toolBar, SWT.PUSH);
item.setImage(instance.images[ControlExample.ciOpenFolder]);
item.setToolTipText("SWT.PUSH");
pushItem = new CoolItem(coolBar, itemStyle);
pushItem.setControl(toolBar);
pushItem.addSelectionListener(new CoolItemSelectionListener());
/* Create the dropdown toolbar cool item */
toolBar = new ToolBar(coolBar, toolBarStyle);
item = new ToolItem(toolBar, SWT.DROP_DOWN);
item.setImage(instance.images[ControlExample.ciOpenFolder]);
item.setToolTipText("SWT.DROP_DOWN");
item.addSelectionListener(new DropDownSelectionListener());
item = new ToolItem(toolBar, SWT.DROP_DOWN);
item.setImage(instance.images[ControlExample.ciClosedFolder]);
item.setToolTipText("SWT.DROP_DOWN");
item.addSelectionListener(new DropDownSelectionListener());
dropDownItem = new CoolItem(coolBar, itemStyle);
dropDownItem.setControl(toolBar);
dropDownItem.addSelectionListener(new CoolItemSelectionListener());
/* Create the radio button toolbar cool item */
toolBar = new ToolBar(coolBar, toolBarStyle);
item = new ToolItem(toolBar, SWT.RADIO);
item.setImage(instance.images[ControlExample.ciClosedFolder]);
item.setToolTipText("SWT.RADIO");
item = new ToolItem(toolBar, SWT.RADIO);
item.setImage(instance.images[ControlExample.ciClosedFolder]);
item.setToolTipText("SWT.RADIO");
item = new ToolItem(toolBar, SWT.RADIO);
item.setImage(instance.images[ControlExample.ciClosedFolder]);
item.setToolTipText("SWT.RADIO");
radioItem = new CoolItem(coolBar, itemStyle);
radioItem.setControl(toolBar);
radioItem.addSelectionListener(new CoolItemSelectionListener());
/* Create the check button toolbar cool item */
toolBar = new ToolBar(coolBar, toolBarStyle);
item = new ToolItem(toolBar, SWT.CHECK);
item.setImage(instance.images[ControlExample.ciClosedFolder]);
item.setToolTipText("SWT.CHECK");
item = new ToolItem(toolBar, SWT.CHECK);
item.setImage(instance.images[ControlExample.ciTarget]);
item.setToolTipText("SWT.CHECK");
item = new ToolItem(toolBar, SWT.CHECK);
item.setImage(instance.images[ControlExample.ciOpenFolder]);
item.setToolTipText("SWT.CHECK");
item = new ToolItem(toolBar, SWT.CHECK);
item.setImage(instance.images[ControlExample.ciTarget]);
item.setToolTipText("SWT.CHECK");
checkItem = new CoolItem(coolBar, itemStyle);
checkItem.setControl(toolBar);
checkItem.addSelectionListener(new CoolItemSelectionListener());
/* Create the text cool item */
if (!vertical) {
Text text = new Text(coolBar, SWT.BORDER | SWT.SINGLE);
textItem = new CoolItem(coolBar, itemStyle);
textItem.setControl(text);
textItem.addSelectionListener(new CoolItemSelectionListener());
Point textSize = text.computeSize(SWT.DEFAULT, SWT.DEFAULT);
textSize = textItem.computeSize(textSize.x, textSize.y);
textItem.setMinimumSize(textSize);
textItem.setPreferredSize(textSize);
textItem.setSize(textSize);
}
/* Set the sizes after adding all cool items */
CoolItem[] coolItems = coolBar.getItems();
for (int i = 0; i < coolItems.length; i++) {
CoolItem coolItem = coolItems[i];
Control control = coolItem.getControl();
Point size = control.computeSize(SWT.DEFAULT, SWT.DEFAULT);
Point coolSize = coolItem.computeSize(size.x, size.y);
if (control instanceof ToolBar) {
ToolBar bar = (ToolBar) control;
if (bar.getItemCount() > 0)
if (vertical)
size.y = bar.getItem(0).getBounds().height;
else
size.x = bar.getItem(0).getWidth();
}
coolItem.setMinimumSize(size);
coolItem.setPreferredSize(coolSize);
coolItem.setSize(coolSize);
}
/* If we have saved state, restore it */
if (order != null && order.length == coolBar.getItemCount())
coolBar.setItemLayout(order, wrapIndices, sizes);
else
coolBar.setWrapIndices(new int[] { 1, 3 });
/* Add a listener to resize the group box to match the coolbar */
coolBar.addListener(SWT.Resize, new Listener() {
public void handleEvent(Event event) {
exampleGroup.layout();
}
});
}
/**
* Creates the "Other" group.
*/
void createOtherGroup() {
super.createOtherGroup();
/* Create display controls specific to this example */
lockedButton = new Button(otherGroup, SWT.CHECK);
lockedButton.setText(ControlExample.getResourceString("Locked"));
/* Add the listeners */
lockedButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
setWidgetLocked();
}
});
}
/**
* Creates the "Style" group.
*/
void createStyleGroup() {
super.createStyleGroup();
/* Create the extra widgets */
horizontalButton = new Button(styleGroup, SWT.RADIO);
horizontalButton.setText("SWT.HORIZONTAL");
verticalButton = new Button(styleGroup, SWT.RADIO);
verticalButton.setText("SWT.VERTICAL");
borderButton = new Button(styleGroup, SWT.CHECK);
borderButton.setText("SWT.BORDER");
flatButton = new Button(styleGroup, SWT.CHECK);
flatButton.setText("SWT.FLAT");
Group itemGroup = new Group(styleGroup, SWT.NONE);
itemGroup.setLayout(new GridLayout());
itemGroup.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
itemGroup.setText(ControlExample.getResourceString("Item_Styles"));
dropDownButton = new Button(itemGroup, SWT.CHECK);
dropDownButton.setText("SWT.DROP_DOWN");
}
/**
* Disposes the "Example" widgets.
*/
void disposeExampleWidgets() {
/* store the state of the toolbar if applicable */
if (coolBar != null) {
sizes = coolBar.getItemSizes();
wrapIndices = coolBar.getWrapIndices();
order = coolBar.getItemOrder();
}
super.disposeExampleWidgets();
}
/**
* Gets the "Example" widget children's items, if any.
*
* @return an array containing the example widget children's items
*/
Item[] getExampleWidgetItems() {
return coolBar.getItems();
}
/**
* Gets the "Example" widget children.
*/
Widget[] getExampleWidgets() {
return new Widget[] { coolBar };
}
/**
* Returns a list of set/get API method names (without the set/get prefix) that can be used to set/get values in the
* example control(s).
*/
String[] getMethodNames() {
return new String[] { "ToolTipText" };
}
/**
* Gets the text for the tab folder item.
*/
String getTabText() {
return "CoolBar";
}
/**
* Sets the state of the "Example" widgets.
*/
void setExampleWidgetState() {
super.setExampleWidgetState();
horizontalButton.setSelection((coolBar.getStyle() & SWT.HORIZONTAL) != 0);
verticalButton.setSelection((coolBar.getStyle() & SWT.VERTICAL) != 0);
borderButton.setSelection((coolBar.getStyle() & SWT.BORDER) != 0);
flatButton.setSelection((coolBar.getStyle() & SWT.FLAT) != 0);
dropDownButton.setSelection((coolBar.getItem(0).getStyle() & SWT.DROP_DOWN) != 0);
lockedButton.setSelection(coolBar.getLocked());
if (!instance.startup)
setWidgetLocked();
}
/**
* Sets the header visible state of the "Example" widgets.
*/
void setWidgetLocked() {
coolBar.setLocked(lockedButton.getSelection());
}
}