| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.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, itemGroup; |
| |
| /* Style widgets added to the "Style" group */ |
| Button checkButton, fullSelectionButton; |
| |
| /* Other widgets added to the "Other" group */ |
| Button multipleColumns, moveableColumns, headerVisibleButton, linesVisibleButton; |
| |
| /* Controls and resources added to the "Colors" group */ |
| Button itemForegroundButton, itemBackgroundButton, itemFontButton; |
| Color itemForegroundColor, itemBackgroundColor; |
| Image itemForegroundImage, itemBackgroundImage; |
| Font itemFont; |
| |
| static String [] columnTitles = {ControlExample.getResourceString("TableTitle_0"), |
| ControlExample.getResourceString("TableTitle_1"), |
| ControlExample.getResourceString("TableTitle_2"), |
| ControlExample.getResourceString("TableTitle_3")}; |
| |
| static String[][] tableData = { |
| { ControlExample.getResourceString("TableLine0_0"), |
| ControlExample.getResourceString("TableLine0_1"), |
| ControlExample.getResourceString("TableLine0_2"), |
| ControlExample.getResourceString("TableLine0_3") }, |
| { ControlExample.getResourceString("TableLine1_0"), |
| ControlExample.getResourceString("TableLine1_1"), |
| ControlExample.getResourceString("TableLine1_2"), |
| ControlExample.getResourceString("TableLine1_3") }, |
| { ControlExample.getResourceString("TableLine2_0"), |
| ControlExample.getResourceString("TableLine2_1"), |
| ControlExample.getResourceString("TableLine2_2"), |
| ControlExample.getResourceString("TableLine2_3") } }; |
| |
| /** |
| * Creates the Tab within a given instance of ControlExample. |
| */ |
| TreeTab(ControlExample instance) { |
| super(instance); |
| } |
| |
| /** |
| * Creates the "Colors" group. |
| */ |
| void createColorGroup () { |
| super.createColorGroup(); |
| |
| itemGroup = new Group (colorGroup, SWT.NONE); |
| itemGroup.setText (ControlExample.getResourceString ("Tree_Item_Colors")); |
| GridData data = new GridData (); |
| data.horizontalSpan = 2; |
| itemGroup.setLayoutData (data); |
| itemGroup.setLayout (new GridLayout (2, false)); |
| new Label (itemGroup, SWT.NONE).setText (ControlExample.getResourceString ("Foreground_Color")); |
| itemForegroundButton = new Button (itemGroup, SWT.PUSH); |
| new Label (itemGroup, SWT.NONE).setText (ControlExample.getResourceString ("Background_Color")); |
| itemBackgroundButton = new Button (itemGroup, SWT.PUSH); |
| itemFontButton = new Button (itemGroup, SWT.PUSH); |
| itemFontButton.setText(ControlExample.getResourceString("Font")); |
| itemFontButton.setLayoutData(new GridData (GridData.HORIZONTAL_ALIGN_FILL)); |
| |
| Shell shell = colorGroup.getShell (); |
| final ColorDialog foregroundDialog = new ColorDialog (shell); |
| final ColorDialog backgroundDialog = new ColorDialog (shell); |
| final FontDialog fontDialog = new FontDialog (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 (); |
| } |
| }); |
| itemFontButton.addSelectionListener(new SelectionAdapter () { |
| public void widgetSelected (SelectionEvent event) { |
| Font oldFont = itemFont; |
| if (oldFont == null) oldFont = textNode1.getFont (); |
| fontDialog.setFontList(oldFont.getFontData()); |
| FontData fontData = fontDialog.open (); |
| if (fontData == null) return; |
| oldFont = itemFont; |
| itemFont = new Font (event.display, fontData); |
| setItemFont (); |
| setExampleWidgetSize (); |
| if (oldFont != null) oldFont.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(); |
| if (itemFont != null) itemFont.dispose(); |
| itemBackgroundColor = null; |
| itemForegroundColor = null; |
| itemFont = null; |
| } |
| }); |
| } |
| |
| /** |
| * Creates the "Other" group. |
| */ |
| void createOtherGroup () { |
| super.createOtherGroup (); |
| |
| /* Create display controls specific to this example */ |
| headerVisibleButton = new Button (otherGroup, SWT.CHECK); |
| headerVisibleButton.setText (ControlExample.getResourceString("Header_Visible")); |
| multipleColumns = new Button (otherGroup, SWT.CHECK); |
| multipleColumns.setText (ControlExample.getResourceString("Multiple_Columns")); |
| moveableColumns = new Button (otherGroup, SWT.CHECK); |
| moveableColumns.setText (ControlExample.getResourceString("Moveable_Columns")); |
| moveableColumns.setSelection(false); |
| linesVisibleButton = new Button (otherGroup, SWT.CHECK); |
| linesVisibleButton.setText (ControlExample.getResourceString("Lines_Visible")); |
| |
| /* Add the listeners */ |
| headerVisibleButton.addSelectionListener (new SelectionAdapter () { |
| public void widgetSelected (SelectionEvent event) { |
| setWidgetHeaderVisible (); |
| } |
| }); |
| multipleColumns.addSelectionListener (new SelectionAdapter () { |
| public void widgetSelected (SelectionEvent event) { |
| recreateExampleWidgets (); |
| } |
| }); |
| moveableColumns.addSelectionListener (new SelectionAdapter () { |
| public void widgetSelected (SelectionEvent event) { |
| setColumnsMoveable (); |
| } |
| }); |
| linesVisibleButton.addSelectionListener (new SelectionAdapter () { |
| public void widgetSelected (SelectionEvent event) { |
| setWidgetLinesVisible (); |
| } |
| }); |
| } |
| |
| /** |
| * 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 (fullSelectionButton.getSelection ()) style |= SWT.FULL_SELECTION; |
| if (borderButton.getSelection()) style |= SWT.BORDER; |
| |
| /* Create the text tree */ |
| tree1 = new Tree (treeGroup, style); |
| if (multipleColumns.getSelection()) { |
| for (int i = 0; i < columnTitles.length; i++) { |
| TreeColumn treeColumn = new TreeColumn(tree1, SWT.NONE); |
| treeColumn.setText(columnTitles[i]); |
| treeColumn.setToolTipText(ControlExample.getResourceString("Tooltip", new String [] {columnTitles[i]})); |
| } |
| tree1.setSortColumn(tree1.getColumn(0)); |
| } |
| for (int i = 0; i < 4; i++) { |
| TreeItem item = new TreeItem (tree1, SWT.NONE); |
| setItemText(item, i, ControlExample.getResourceString("Node_" + (i + 1))); |
| if (i < 3) { |
| TreeItem subitem = new TreeItem (item, SWT.NONE); |
| setItemText(subitem, i, ControlExample.getResourceString("Node_" + (i + 1) + "_1")); |
| } |
| } |
| TreeItem treeRoots[] = tree1.getItems (); |
| TreeItem item = new TreeItem (treeRoots[1], SWT.NONE); |
| setItemText(item, 1, ControlExample.getResourceString("Node_2_2")); |
| item = new TreeItem (item, SWT.NONE); |
| setItemText(item, 1, ControlExample.getResourceString("Node_2_2_1")); |
| textNode1 = treeRoots[0]; |
| packColumns(tree1); |
| |
| /* Create the image tree */ |
| tree2 = new Tree (imageTreeGroup, style); |
| Image image = instance.images[ControlExample.ciClosedFolder]; |
| if (multipleColumns.getSelection()) { |
| for (int i = 0; i < columnTitles.length; i++) { |
| TreeColumn treeColumn = new TreeColumn(tree2, SWT.NONE); |
| treeColumn.setText(columnTitles[i]); |
| treeColumn.setToolTipText(ControlExample.getResourceString("Tooltip") + columnTitles[i]); |
| } |
| } |
| for (int i = 0; i < 4; i++) { |
| item = new TreeItem (tree2, SWT.NONE); |
| setItemText(item, i, ControlExample.getResourceString("Node_" + (i + 1))); |
| item.setImage(image); |
| if (i < 3) { |
| TreeItem subitem = new TreeItem (item, SWT.NONE); |
| setItemText(subitem, i, ControlExample.getResourceString("Node_" + (i + 1) + "_1")); |
| subitem.setImage(image); |
| } |
| } |
| treeRoots = tree2.getItems (); |
| item = new TreeItem (treeRoots[1], SWT.NONE); |
| setItemText(item, 1, ControlExample.getResourceString("Node_2_2")); |
| item.setImage(image); |
| item = new TreeItem (item, SWT.NONE); |
| setItemText(item, 1, ControlExample.getResourceString("Node_2_2_1")); |
| item.setImage(image); |
| imageNode1 = treeRoots[0]; |
| packColumns(tree2); |
| |
| setColumnsMoveable(); |
| } |
| |
| void setItemText(TreeItem item, int i, String node) { |
| int index = i % 3; |
| if (multipleColumns.getSelection()) { |
| tableData [index][0] = node; |
| item.setText (tableData [index]); |
| } else { |
| item.setText (node); |
| } |
| } |
| |
| /** |
| * Creates the "Style" group. |
| */ |
| void createStyleGroup() { |
| super.createStyleGroup(); |
| |
| /* Create the extra widgets */ |
| checkButton = new Button (styleGroup, SWT.CHECK); |
| checkButton.setText ("SWT.CHECK"); |
| fullSelectionButton = new Button (styleGroup, SWT.CHECK); |
| fullSelectionButton.setText ("SWT.FULL_SELECTION"); |
| } |
| |
| /** |
| * Gets the "Example" widget children's items, if any. |
| * |
| * @return an array containing the example widget children's items |
| */ |
| Item [] getExampleWidgetItems () { |
| /* Note: We do not bother collecting the tree items |
| * because tree items don't have any events. If events |
| * are ever added to TreeItem, then this needs to change. |
| */ |
| Item [] columns1 = tree1.getColumns(); |
| Item [] columns2 = tree2.getColumns(); |
| Item [] allItems = new Item [columns1.length + columns2.length]; |
| System.arraycopy(columns1, 0, allItems, 0, columns1.length); |
| System.arraycopy(columns2, 0, allItems, columns1.length, columns2.length); |
| return allItems; |
| } |
| |
| /** |
| * Gets the "Example" widget children. |
| */ |
| Control [] getExampleWidgets () { |
| return new Control [] {tree1, tree2}; |
| } |
| |
| /** |
| * 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[] {"ColumnOrder", "Selection", "SortDirection", "ToolTipText", "TopItem"}; |
| } |
| |
| Object[] parameterForType(String typeName, String value, Control control) { |
| if (typeName.equals("org.eclipse.swt.widgets.TreeItem")) { |
| TreeItem item = findItem(value, ((Tree) control).getItems()); |
| if (item != null) return new Object[] {item}; |
| } |
| if (typeName.equals("[Lorg.eclipse.swt.widgets.TreeItem;")) { |
| String[] values = value.split(","); |
| TreeItem[] items = new TreeItem[values.length]; |
| for (int i = 0; i < values.length; i++) { |
| TreeItem item = findItem(values[i], ((Tree) control).getItems()); |
| if (item == null) break; |
| items[i] = item; |
| } |
| return new Object[] {items}; |
| } |
| return super.parameterForType(typeName, value, control); |
| } |
| |
| TreeItem findItem(String value, TreeItem[] items) { |
| for (int i = 0; i < items.length; i++) { |
| TreeItem item = items[i]; |
| if (item.getText().equals(value)) return item; |
| item = findItem(value, item.getItems()); |
| if (item != null) return item; |
| } |
| return null; |
| } |
| |
| /** |
| * Gets the text for the tab folder item. |
| */ |
| String getTabText () { |
| return "Tree"; |
| } |
| |
| void packColumns (Tree tree) { |
| if (multipleColumns.getSelection()) { |
| int columnCount = tree.getColumnCount(); |
| for (int i = 0; i < columnCount; i++) { |
| TreeColumn treeColumn = tree.getColumn(i); |
| treeColumn.pack(); |
| } |
| } |
| } |
| |
| /** |
| * Sets the moveable columns state of the "Example" widgets. |
| */ |
| void setColumnsMoveable () { |
| boolean selection = moveableColumns.getSelection(); |
| TreeColumn[] columns1 = tree1.getColumns(); |
| for (int i = 0; i < columns1.length; i++) { |
| columns1[i].setMoveable(selection); |
| } |
| TreeColumn[] columns2 = tree2.getColumns(); |
| for (int i = 0; i < columns2.length; i++) { |
| columns2[i].setMoveable(selection); |
| } |
| } |
| |
| /** |
| * 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(); |
| Font oldFont = font; |
| itemFont = null; |
| setItemFont (); |
| setExampleWidgetSize (); |
| if (oldFont != null) oldFont.dispose(); |
| } |
| |
| /** |
| * Sets the state of the "Example" widgets. |
| */ |
| void setExampleWidgetState () { |
| super.setExampleWidgetState (); |
| setItemBackground (); |
| setItemForeground (); |
| setItemFont (); |
| setExampleWidgetSize (); |
| setWidgetHeaderVisible (); |
| setWidgetLinesVisible (); |
| checkButton.setSelection ((tree1.getStyle () & SWT.CHECK) != 0); |
| checkButton.setSelection ((tree2.getStyle () & SWT.CHECK) != 0); |
| fullSelectionButton.setSelection ((tree1.getStyle () & SWT.FULL_SELECTION) != 0); |
| fullSelectionButton.setSelection ((tree2.getStyle () & SWT.FULL_SELECTION) != 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 (itemBackgroundImage, color); |
| itemBackgroundButton.setImage (itemBackgroundImage); |
| } |
| |
| /** |
| * Sets the foreground color of the 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 (itemForegroundImage, color); |
| itemForegroundButton.setImage (itemForegroundImage); |
| } |
| |
| /** |
| * Sets the font of the Node 1 TreeItems. |
| */ |
| void setItemFont () { |
| if (instance.startup) return; |
| textNode1.setFont (itemFont); |
| imageNode1.setFont (itemFont); |
| } |
| |
| /** |
| * Sets the header visible state of the "Example" widgets. |
| */ |
| void setWidgetHeaderVisible () { |
| tree1.setHeaderVisible (headerVisibleButton.getSelection ()); |
| tree2.setHeaderVisible (headerVisibleButton.getSelection ()); |
| } |
| |
| /** |
| * Sets the lines visible state of the "Example" widgets. |
| */ |
| void setWidgetLinesVisible () { |
| tree1.setLinesVisible (linesVisibleButton.getSelection ()); |
| tree2.setLinesVisible (linesVisibleButton.getSelection ()); |
| } |
| } |