| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.examples.controlexample; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| |
| class TreeTab extends ScrollableTab { |
| /* Example widgets and groups that contain them */ |
| Tree tree1, tree2; |
| TreeItem textNode1, imageNode1; |
| Group treeGroup, imageTreeGroup, treeItemGroup; |
| |
| /* Style widgets added to the "Style" group */ |
| Button checkButton; |
| |
| /* Controls and resources added to the "Colors" group */ |
| Button itemForegroundButton, itemBackgroundButton; |
| Color itemForegroundColor, itemBackgroundColor; |
| Image itemForegroundImage, itemBackgroundImage; |
| |
| /** |
| * Creates the Tab within a given instance of ControlExample. |
| */ |
| TreeTab(ControlExample instance) { |
| super(instance); |
| } |
| |
| /** |
| * Creates the "Colors" group. |
| */ |
| void createColorGroup () { |
| super.createColorGroup(); |
| |
| treeItemGroup = new Group (colorGroup, SWT.NONE); |
| treeItemGroup.setText (ControlExample.getResourceString ("Tree_Item_Colors")); |
| GridData data = new GridData (); |
| data.horizontalSpan = 2; |
| treeItemGroup.setLayoutData (data); |
| treeItemGroup.setLayout (new GridLayout (2, false)); |
| new Label (treeItemGroup, SWT.NONE).setText (ControlExample.getResourceString ("Item_Foreground_Color")); |
| itemForegroundButton = new Button (treeItemGroup, SWT.PUSH); |
| new Label (treeItemGroup, SWT.NONE).setText (ControlExample.getResourceString ("Item_Background_Color")); |
| itemBackgroundButton = new Button (treeItemGroup, SWT.PUSH); |
| |
| Shell shell = colorGroup.getShell (); |
| final ColorDialog foregroundDialog = new ColorDialog (shell); |
| final ColorDialog backgroundDialog = new ColorDialog (shell); |
| |
| int imageSize = 12; |
| Display display = shell.getDisplay (); |
| itemForegroundImage = new Image(display, imageSize, imageSize); |
| itemBackgroundImage = new Image(display, imageSize, imageSize); |
| |
| /* Add listeners to set the colors and font */ |
| itemForegroundButton.setImage(itemForegroundImage); |
| itemForegroundButton.addSelectionListener(new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent event) { |
| Color oldColor = itemForegroundColor; |
| if (oldColor == null) oldColor = textNode1.getForeground (); |
| foregroundDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = foregroundDialog.open(); |
| if (rgb == null) return; |
| oldColor = itemForegroundColor; |
| itemForegroundColor = new Color (event.display, rgb); |
| setItemForeground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| }); |
| itemBackgroundButton.setImage(itemBackgroundImage); |
| itemBackgroundButton.addSelectionListener(new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent event) { |
| Color oldColor = itemBackgroundColor; |
| if (oldColor == null) oldColor = textNode1.getBackground (); |
| backgroundDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = backgroundDialog.open(); |
| if (rgb == null) return; |
| oldColor = itemBackgroundColor; |
| itemBackgroundColor = new Color (event.display, rgb); |
| setItemBackground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| }); |
| shell.addDisposeListener(new DisposeListener() { |
| public void widgetDisposed(DisposeEvent event) { |
| if (itemBackgroundImage != null) itemBackgroundImage.dispose(); |
| if (itemForegroundImage != null) itemForegroundImage.dispose(); |
| if (itemBackgroundColor != null) itemBackgroundColor.dispose(); |
| if (itemForegroundColor != null) itemForegroundColor.dispose(); |
| itemBackgroundColor = null; |
| itemForegroundColor = null; |
| } |
| }); |
| } |
| |
| /** |
| * Creates the "Example" group. |
| */ |
| void createExampleGroup () { |
| super.createExampleGroup (); |
| |
| /* Create a group for the text tree */ |
| treeGroup = new Group (exampleGroup, SWT.NONE); |
| treeGroup.setLayout (new GridLayout ()); |
| treeGroup.setLayoutData (new GridData (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL)); |
| treeGroup.setText ("Tree"); |
| |
| /* Create a group for the image tree */ |
| imageTreeGroup = new Group (exampleGroup, SWT.NONE); |
| imageTreeGroup.setLayout (new GridLayout ()); |
| imageTreeGroup.setLayoutData (new GridData (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL)); |
| imageTreeGroup.setText (ControlExample.getResourceString("Tree_With_Images")); |
| } |
| |
| /** |
| * Creates the "Example" widgets. |
| */ |
| void createExampleWidgets () { |
| /* Compute the widget style */ |
| int style = getDefaultStyle(); |
| if (singleButton.getSelection()) style |= SWT.SINGLE; |
| if (multiButton.getSelection()) style |= SWT.MULTI; |
| if (checkButton.getSelection()) style |= SWT.CHECK; |
| if (borderButton.getSelection()) style |= SWT.BORDER; |
| |
| /* Create the text tree */ |
| tree1 = new Tree (treeGroup, style); |
| textNode1 = new TreeItem (tree1, SWT.NONE); |
| textNode1.setText (ControlExample.getResourceString("Node_1")); |
| TreeItem node2 = new TreeItem (tree1, SWT.NONE); |
| node2.setText (ControlExample.getResourceString("Node_2")); |
| TreeItem node3 = new TreeItem (tree1, SWT.NONE); |
| node3.setText (ControlExample.getResourceString("Node_3")); |
| TreeItem node4 = new TreeItem (tree1, SWT.NONE); |
| node4.setText (ControlExample.getResourceString("Node_4")); |
| TreeItem node1_1 = new TreeItem (textNode1, SWT.NONE); |
| node1_1.setText (ControlExample.getResourceString("Node_1_1")); |
| TreeItem node2_1 = new TreeItem (node2, SWT.NONE); |
| node2_1.setText (ControlExample.getResourceString("Node_2_1")); |
| TreeItem node3_1 = new TreeItem (node3, SWT.NONE); |
| node3_1.setText (ControlExample.getResourceString("Node_3_1")); |
| TreeItem node2_2 = new TreeItem (node2, SWT.NONE); |
| node2_2.setText (ControlExample.getResourceString("Node_2_2")); |
| TreeItem node2_2_1 = new TreeItem (node2_2, SWT.NONE); |
| node2_2_1.setText (ControlExample.getResourceString("Node_2_2_1")); |
| |
| /* Create the image tree */ |
| tree2 = new Tree (imageTreeGroup, style); |
| imageNode1 = new TreeItem (tree2, SWT.NONE); |
| imageNode1.setText (ControlExample.getResourceString("Node_1")); |
| imageNode1.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node2 = new TreeItem (tree2, SWT.NONE); |
| node2.setText (ControlExample.getResourceString("Node_2")); |
| node2.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node3 = new TreeItem (tree2, SWT.NONE); |
| node3.setText (ControlExample.getResourceString("Node_3")); |
| node3.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node4 = new TreeItem (tree2, SWT.NONE); |
| node4.setText (ControlExample.getResourceString("Node_4")); |
| node4.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node1_1 = new TreeItem (imageNode1, SWT.NONE); |
| node1_1.setText (ControlExample.getResourceString("Node_1_1")); |
| node1_1.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node2_1 = new TreeItem (node2, SWT.NONE); |
| node2_1.setText (ControlExample.getResourceString("Node_2_1")); |
| node2_1.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node3_1 = new TreeItem (node3, SWT.NONE); |
| node3_1.setText (ControlExample.getResourceString("Node_3_1")); |
| node3_1.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node2_2 = new TreeItem(node2, SWT.NONE); |
| node2_2.setText (ControlExample.getResourceString("Node_2_2")); |
| node2_2.setImage (instance.images[ControlExample.ciClosedFolder]); |
| node2_2_1 = new TreeItem (node2_2, SWT.NONE); |
| node2_2_1.setText (ControlExample.getResourceString("Node_2_2_1")); |
| node2_2_1.setImage (instance.images[ControlExample.ciClosedFolder]); |
| } |
| |
| /** |
| * Creates the "Style" group. |
| */ |
| void createStyleGroup() { |
| super.createStyleGroup(); |
| |
| /* Create the extra widgets */ |
| checkButton = new Button (styleGroup, SWT.CHECK); |
| checkButton.setText ("SWT.CHECK"); |
| } |
| |
| /** |
| * Gets the "Example" widget children. |
| */ |
| Control [] getExampleWidgets () { |
| return new Control [] {tree1, tree2}; |
| } |
| |
| /** |
| * Gets the text for the tab folder item. |
| */ |
| String getTabText () { |
| return "Tree"; |
| } |
| |
| /** |
| * Sets the foreground color, background color, and font |
| * of the "Example" widgets to their default settings. |
| * Also sets foreground and background color of the Node 1 |
| * TreeItems to default settings. |
| */ |
| void resetColorsAndFonts () { |
| super.resetColorsAndFonts (); |
| Color oldColor = itemForegroundColor; |
| itemForegroundColor = null; |
| setItemForeground (); |
| if (oldColor != null) oldColor.dispose(); |
| oldColor = itemBackgroundColor; |
| itemBackgroundColor = null; |
| setItemBackground (); |
| if (oldColor != null) oldColor.dispose(); |
| } |
| |
| /** |
| * Sets the state of the "Example" widgets. |
| */ |
| void setExampleWidgetState () { |
| super.setExampleWidgetState (); |
| setItemBackground (); |
| setItemForeground (); |
| checkButton.setSelection ((tree1.getStyle () & SWT.CHECK) != 0); |
| } |
| |
| /** |
| * Sets the background color of the Node 1 TreeItems. |
| */ |
| void setItemBackground () { |
| textNode1.setBackground (itemBackgroundColor); |
| imageNode1.setBackground (itemBackgroundColor); |
| /* Set the background button's color to match the color just set. */ |
| Color color = itemBackgroundColor; |
| if (color == null) color = textNode1.getBackground (); |
| drawImage (itemForegroundImage, color); |
| itemBackgroundButton.setImage (itemForegroundImage); |
| } |
| |
| /** |
| * Sets the foreground color of Node 1 TreeItems. |
| */ |
| void setItemForeground () { |
| textNode1.setForeground (itemForegroundColor); |
| imageNode1.setForeground (itemForegroundColor); |
| /* Set the foreground button's color to match the color just set. */ |
| Color color = itemForegroundColor; |
| if (color == null) color = textNode1.getForeground (); |
| drawImage (itemBackgroundImage, color); |
| itemForegroundButton.setImage (itemBackgroundImage); |
| } |
| |
| } |