/*******************************************************************************
* 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.graphics.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.events.*;
class CoolBarTab extends Tab {
/* Example widgets and group that contains them */
CoolBar coolBar;
CoolItem pushItem, dropDownItem, radioItem, checkItem, textItem;
Group coolBarGroup;
/* Style widgets added to the "Style" group */
Button horizontalButton, verticalButton;
Button dropDownButton, flatButton;
/* Other widgets added to the "Other" group */
Button lockedButton;
Point[] sizes;
int[] wrapIndices;
int[] order;
/**
* Creates the Tab within a given instance of ControlExample.
*/
CoolBarTab(ControlExample instance) {
super(instance);
}
/**
* 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 "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 "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");
dropDownButton.addSelectionListener (new SelectionAdapter () {
public void widgetSelected (SelectionEvent event) {
recreateExampleWidgets ();
}
});
}
/**
* 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.
*/
Control [] getExampleWidgets () {
return new Control [] {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 short text for the tab folder item.
*/
public String getShortTabText() {
return "CB";
}
/**
* 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);
if (!instance.startup) setWidgetLocked ();
}
/**
* Sets the header visible state of the "Example" widgets.
*/
void setWidgetLocked () {
coolBar.setLocked (lockedButton.getSelection ());
}
/**
* 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;
}
}
/**
* 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 ();
}
if (menu != null) {
menu.dispose ();
menu = null;
}
}
}
}
}