| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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 (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL)); |
| 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 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); |
| 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. |
| Shell shell = tabFolderPage.getShell(); |
| 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); |
| Display display = coolBar.getDisplay (); |
| while (menu != null && !menu.isDisposed() && menu.isVisible ()) { |
| if (!display.readAndDispatch ()) display.sleep (); |
| } |
| if (menu != null) { |
| menu.dispose (); |
| menu = null; |
| } |
| } |
| } |
| } |
| } |