| /******************************************************************************* |
| * Copyright (c) 2000, 2017 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.examples.controlexample; |
| |
| |
| import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.FontData; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.graphics.RGB; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Group; |
| import org.eclipse.swt.widgets.Item; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.MenuItem; |
| import org.eclipse.swt.widgets.TableItem; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.swt.widgets.TreeColumn; |
| import org.eclipse.swt.widgets.TreeItem; |
| import org.eclipse.swt.widgets.Widget; |
| |
| class TreeTab extends ScrollableTab { |
| /* Example widgets and groups that contain them */ |
| Tree tree1, tree2; |
| TreeItem textNode1, imageNode1; |
| Group treeGroup, imageTreeGroup, itemGroup; |
| |
| /* Size widgets added to the "Size" group */ |
| Button packColumnsButton; |
| |
| /* Style widgets added to the "Style" group */ |
| Button noScrollButton, checkButton, fullSelectionButton; |
| |
| /* Other widgets added to the "Other" group */ |
| Button multipleColumns, moveableColumns, resizableColumns, headerVisibleButton, sortIndicatorButton, headerImagesButton, subImagesButton, linesVisibleButton; |
| |
| /* Controls and resources added to the "Colors and Fonts" group */ |
| static final int ITEM_FOREGROUND_COLOR = 3; |
| static final int ITEM_BACKGROUND_COLOR = 4; |
| static final int ITEM_FONT = 5; |
| static final int CELL_FOREGROUND_COLOR = 6; |
| static final int CELL_BACKGROUND_COLOR = 7; |
| static final int CELL_FONT = 8; |
| static final int HEADER_FOREGROUND_COLOR = 9; |
| static final int HEADER_BACKGROUND_COLOR = 10; |
| Color itemForegroundColor, itemBackgroundColor, cellForegroundColor, cellBackgroundColor, headerForegroundColor, headerBackgroundColor; |
| Font itemFont, cellFont; |
| |
| 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") } }; |
| |
| Point menuMouseCoords; |
| |
| /** |
| * Creates the Tab within a given instance of ControlExample. |
| */ |
| TreeTab(ControlExample instance) { |
| super(instance); |
| } |
| |
| /** |
| * Creates the "Colors and Fonts" group. |
| */ |
| @Override |
| void createColorAndFontGroup () { |
| super.createColorAndFontGroup(); |
| |
| TableItem item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Item_Foreground_Color")); |
| item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Item_Background_Color")); |
| item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Item_Font")); |
| item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Cell_Foreground_Color")); |
| item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Cell_Background_Color")); |
| item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Cell_Font")); |
| item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Header_Foreground_Color")); |
| item = new TableItem(colorAndFontTable, SWT.None); |
| item.setText(ControlExample.getResourceString ("Header_Background_Color")); |
| |
| shell.addDisposeListener(event -> { |
| if (itemBackgroundColor != null) itemBackgroundColor.dispose(); |
| if (itemForegroundColor != null) itemForegroundColor.dispose(); |
| if (itemFont != null) itemFont.dispose(); |
| if (cellBackgroundColor != null) cellBackgroundColor.dispose(); |
| if (cellForegroundColor != null) cellForegroundColor.dispose(); |
| if (cellFont != null) cellFont.dispose(); |
| if (headerBackgroundColor != null) headerBackgroundColor.dispose(); |
| if (headerForegroundColor != null) headerForegroundColor.dispose(); |
| itemBackgroundColor = null; |
| itemForegroundColor = null; |
| itemFont = null; |
| cellBackgroundColor = null; |
| cellForegroundColor = null; |
| cellFont = null; |
| headerForegroundColor = null; |
| headerBackgroundColor = null; |
| }); |
| } |
| |
| @Override |
| void changeFontOrColor(int index) { |
| switch (index) { |
| case ITEM_FOREGROUND_COLOR: { |
| Color oldColor = itemForegroundColor; |
| if (oldColor == null) oldColor = textNode1.getForeground (); |
| colorDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = colorDialog.open(); |
| if (rgb == null) return; |
| oldColor = itemForegroundColor; |
| itemForegroundColor = new Color (display, rgb); |
| setItemForeground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| break; |
| case ITEM_BACKGROUND_COLOR: { |
| Color oldColor = itemBackgroundColor; |
| if (oldColor == null) oldColor = textNode1.getBackground (); |
| colorDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = colorDialog.open(); |
| if (rgb == null) return; |
| oldColor = itemBackgroundColor; |
| itemBackgroundColor = new Color (display, rgb); |
| setItemBackground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| break; |
| case ITEM_FONT: { |
| 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 (display, fontData); |
| setItemFont (); |
| setExampleWidgetSize (); |
| if (oldFont != null) oldFont.dispose (); |
| } |
| break; |
| case CELL_FOREGROUND_COLOR: { |
| Color oldColor = cellForegroundColor; |
| if (oldColor == null) oldColor = textNode1.getForeground (1); |
| colorDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = colorDialog.open(); |
| if (rgb == null) return; |
| oldColor = cellForegroundColor; |
| cellForegroundColor = new Color (display, rgb); |
| setCellForeground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| break; |
| case CELL_BACKGROUND_COLOR: { |
| Color oldColor = cellBackgroundColor; |
| if (oldColor == null) oldColor = textNode1.getBackground (1); |
| colorDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = colorDialog.open(); |
| if (rgb == null) return; |
| oldColor = cellBackgroundColor; |
| cellBackgroundColor = new Color (display, rgb); |
| setCellBackground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| break; |
| case CELL_FONT: { |
| Font oldFont = cellFont; |
| if (oldFont == null) oldFont = textNode1.getFont (1); |
| fontDialog.setFontList(oldFont.getFontData()); |
| FontData fontData = fontDialog.open (); |
| if (fontData == null) return; |
| oldFont = cellFont; |
| cellFont = new Font (display, fontData); |
| setCellFont (); |
| setExampleWidgetSize (); |
| if (oldFont != null) oldFont.dispose (); |
| } |
| break; |
| case HEADER_FOREGROUND_COLOR: { |
| Color oldColor = headerForegroundColor; |
| if (oldColor == null) oldColor = tree1.getHeaderForeground(); |
| colorDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = colorDialog.open(); |
| if (rgb == null) return; |
| oldColor = headerForegroundColor; |
| headerForegroundColor = new Color (display, rgb); |
| setHeaderForeground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| break; |
| case HEADER_BACKGROUND_COLOR: { |
| Color oldColor = headerBackgroundColor; |
| if (oldColor == null) oldColor = tree1.getHeaderBackground(); |
| colorDialog.setRGB(oldColor.getRGB()); |
| RGB rgb = colorDialog.open(); |
| if (rgb == null) return; |
| oldColor = headerBackgroundColor; |
| headerBackgroundColor = new Color (display, rgb); |
| setHeaderBackground (); |
| if (oldColor != null) oldColor.dispose (); |
| } |
| default: |
| super.changeFontOrColor(index); |
| } |
| } |
| |
| /** |
| * Creates the "Other" group. |
| */ |
| @Override |
| void createOtherGroup () { |
| super.createOtherGroup (); |
| |
| /* Create display controls specific to this example */ |
| linesVisibleButton = new Button (otherGroup, SWT.CHECK); |
| linesVisibleButton.setText (ControlExample.getResourceString("Lines_Visible")); |
| multipleColumns = new Button (otherGroup, SWT.CHECK); |
| multipleColumns.setText (ControlExample.getResourceString("Multiple_Columns")); |
| headerVisibleButton = new Button (otherGroup, SWT.CHECK); |
| headerVisibleButton.setText (ControlExample.getResourceString("Header_Visible")); |
| sortIndicatorButton = new Button (otherGroup, SWT.CHECK); |
| sortIndicatorButton.setText (ControlExample.getResourceString("Sort_Indicator")); |
| moveableColumns = new Button (otherGroup, SWT.CHECK); |
| moveableColumns.setText (ControlExample.getResourceString("Moveable_Columns")); |
| resizableColumns = new Button (otherGroup, SWT.CHECK); |
| resizableColumns.setText (ControlExample.getResourceString("Resizable_Columns")); |
| headerImagesButton = new Button (otherGroup, SWT.CHECK); |
| headerImagesButton.setText (ControlExample.getResourceString("Header_Images")); |
| subImagesButton = new Button (otherGroup, SWT.CHECK); |
| subImagesButton.setText (ControlExample.getResourceString("Sub_Images")); |
| |
| /* Add the listeners */ |
| linesVisibleButton.addSelectionListener (widgetSelectedAdapter(event -> setWidgetLinesVisible ())); |
| multipleColumns.addSelectionListener (widgetSelectedAdapter(event -> recreateExampleWidgets ())); |
| headerVisibleButton.addSelectionListener (widgetSelectedAdapter(event -> setWidgetHeaderVisible ())); |
| sortIndicatorButton.addSelectionListener (widgetSelectedAdapter(event -> setWidgetSortIndicator ())); |
| moveableColumns.addSelectionListener (widgetSelectedAdapter(event -> setColumnsMoveable ())); |
| resizableColumns.addSelectionListener (widgetSelectedAdapter(event -> setColumnsResizable ())); |
| headerImagesButton.addSelectionListener (widgetSelectedAdapter(event -> recreateExampleWidgets ())); |
| subImagesButton.addSelectionListener (widgetSelectedAdapter(event -> recreateExampleWidgets ())); |
| } |
| |
| /** |
| * Creates the "Example" group. |
| */ |
| @Override |
| 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 (SWT.FILL, SWT.FILL, true, true)); |
| treeGroup.setText ("Tree"); |
| |
| /* Create a group for the image tree */ |
| imageTreeGroup = new Group (exampleGroup, SWT.NONE); |
| imageTreeGroup.setLayout (new GridLayout ()); |
| imageTreeGroup.setLayoutData (new GridData (SWT.FILL, SWT.FILL, true, true)); |
| imageTreeGroup.setText (ControlExample.getResourceString("Tree_With_Images")); |
| } |
| |
| /** |
| * Creates the "Example" widgets. |
| */ |
| @Override |
| void createExampleWidgets () { |
| /* Compute the widget style */ |
| int style = getDefaultStyle(); |
| if (singleButton.getSelection()) style |= SWT.SINGLE; |
| if (multiButton.getSelection()) style |= SWT.MULTI; |
| if (horizontalButton.getSelection ()) style |= SWT.H_SCROLL; |
| if (verticalButton.getSelection ()) style |= SWT.V_SCROLL; |
| if (noScrollButton.getSelection()) style |= SWT.NO_SCROLL; |
| 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); |
| boolean multiColumn = multipleColumns.getSelection(); |
| if (multiColumn) { |
| for (String columnTitle : columnTitles) { |
| TreeColumn treeColumn = new TreeColumn(tree1, SWT.NONE); |
| treeColumn.setText(columnTitle); |
| treeColumn.setToolTipText(ControlExample.getResourceString("Tooltip", columnTitle)); |
| } |
| 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); |
| try { |
| TreeColumn column = tree1.getColumn(0); |
| resizableColumns.setSelection (column.getResizable()); |
| } catch (IllegalArgumentException ex) {} |
| |
| /* Create the image tree */ |
| tree2 = new Tree (imageTreeGroup, style); |
| Image image = instance.images[ControlExample.ciClosedFolder]; |
| if (multiColumn) { |
| 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])); |
| if (headerImagesButton.getSelection()) treeColumn.setImage(instance.images [i % 3]); |
| } |
| } |
| for (int i = 0; i < 4; i++) { |
| item = new TreeItem (tree2, SWT.NONE); |
| setItemText(item, i, ControlExample.getResourceString("Node_" + (i + 1))); |
| if (multiColumn && subImagesButton.getSelection()) { |
| for (int j = 0; j < columnTitles.length; j++) { |
| item.setImage(j, image); |
| } |
| } else { |
| item.setImage(image); |
| } |
| if (i < 3) { |
| TreeItem subitem = new TreeItem (item, SWT.NONE); |
| setItemText(subitem, i, ControlExample.getResourceString("Node_" + (i + 1) + "_1")); |
| if (multiColumn && subImagesButton.getSelection()) { |
| for (int j = 0; j < columnTitles.length; j++) { |
| subitem.setImage(j, image); |
| } |
| } else { |
| subitem.setImage(image); |
| } |
| } |
| } |
| treeRoots = tree2.getItems (); |
| item = new TreeItem (treeRoots[1], SWT.NONE); |
| setItemText(item, 1, ControlExample.getResourceString("Node_2_2")); |
| if (multiColumn && subImagesButton.getSelection()) { |
| for (int j = 0; j < columnTitles.length; j++) { |
| item.setImage(j, image); |
| } |
| } else { |
| item.setImage(image); |
| } |
| item = new TreeItem (item, SWT.NONE); |
| setItemText(item, 1, ControlExample.getResourceString("Node_2_2_1")); |
| if (multiColumn && subImagesButton.getSelection()) { |
| for (int j = 0; j < columnTitles.length; j++) { |
| item.setImage(j, image); |
| } |
| } else { |
| item.setImage(image); |
| } |
| imageNode1 = treeRoots[0]; |
| packColumns(tree2); |
| } |
| |
| 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 "Size" group. The "Size" group contains |
| * controls that allow the user to change the size of |
| * the example widgets. |
| */ |
| @Override |
| void createSizeGroup () { |
| super.createSizeGroup(); |
| |
| packColumnsButton = new Button (sizeGroup, SWT.PUSH); |
| packColumnsButton.setText (ControlExample.getResourceString("Pack_Columns")); |
| packColumnsButton.addSelectionListener(widgetSelectedAdapter(event -> { |
| packColumns (tree1); |
| packColumns (tree2); |
| setExampleWidgetSize (); |
| })); |
| } |
| |
| /** |
| * Creates the "Style" group. |
| */ |
| @Override |
| void createStyleGroup() { |
| super.createStyleGroup(); |
| |
| /* Create the extra widgets */ |
| noScrollButton = new Button (styleGroup, SWT.CHECK); |
| noScrollButton.setText ("SWT.NO_SCROLL"); |
| noScrollButton.moveAbove(borderButton); |
| 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 |
| */ |
| @Override |
| 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. |
| */ |
| @Override |
| Widget [] getExampleWidgets () { |
| return new Widget [] {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). |
| */ |
| @Override |
| String[] getMethodNames() { |
| return new String[] {"ColumnOrder", "Selection", "ToolTipText", "TopItem"}; |
| } |
| |
| @Override |
| Object[] parameterForType(String typeName, String value, Widget widget) { |
| if (typeName.equals("org.eclipse.swt.widgets.TreeItem")) { |
| TreeItem item = findItem(value, ((Tree) widget).getItems()); |
| if (item != null) return new Object[] {item}; |
| } |
| if (typeName.equals("[Lorg.eclipse.swt.widgets.TreeItem;")) { |
| String[] values = split(value, ','); |
| TreeItem[] items = new TreeItem[values.length]; |
| for (int i = 0; i < values.length; i++) { |
| TreeItem item = findItem(values[i], ((Tree) widget).getItems()); |
| if (item == null) break; |
| items[i] = item; |
| } |
| return new Object[] {items}; |
| } |
| return super.parameterForType(typeName, value, widget); |
| } |
| |
| TreeItem findItem(String value, TreeItem[] items) { |
| for (TreeItem item : items) { |
| 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. |
| */ |
| @Override |
| 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(); |
| } |
| } |
| } |
| |
| void setHeaderBackground () { |
| if (!instance.startup) { |
| tree1.setHeaderBackground (headerBackgroundColor); |
| tree2.setHeaderBackground (headerBackgroundColor); |
| } |
| /* Set the header background color item's image to match the header background color. */ |
| Color color = headerBackgroundColor; |
| if (color == null) color = tree1.getHeaderBackground(); |
| TableItem item = colorAndFontTable.getItem(HEADER_BACKGROUND_COLOR); |
| Image oldImage1 = item.getImage(); |
| if (oldImage1 != null) oldImage1.dispose(); |
| item.setImage (colorImage(color)); |
| |
| } |
| |
| void setHeaderForeground () { |
| if (!instance.startup) { |
| tree1.setHeaderForeground (headerForegroundColor); |
| tree2.setHeaderForeground (headerForegroundColor); |
| } |
| /* Set the header foreground color item's image to match the header foreground color. */ |
| Color color = headerForegroundColor; |
| if (color == null) color = tree1.getHeaderForeground(); |
| TableItem item = colorAndFontTable.getItem(HEADER_FOREGROUND_COLOR); |
| Image oldImage1 = item.getImage(); |
| if (oldImage1 != null) oldImage1.dispose(); |
| item.setImage (colorImage(color)); |
| |
| } |
| |
| /** |
| * Sets the moveable columns state of the "Example" widgets. |
| */ |
| void setColumnsMoveable () { |
| boolean selection = moveableColumns.getSelection(); |
| TreeColumn[] columns1 = tree1.getColumns(); |
| for (TreeColumn column : columns1) { |
| column.setMoveable(selection); |
| } |
| TreeColumn[] columns2 = tree2.getColumns(); |
| for (TreeColumn column : columns2) { |
| column.setMoveable(selection); |
| } |
| } |
| |
| /** |
| * Sets the resizable columns state of the "Example" widgets. |
| */ |
| void setColumnsResizable () { |
| boolean selection = resizableColumns.getSelection(); |
| TreeColumn[] columns1 = tree1.getColumns(); |
| for (TreeColumn column : columns1) { |
| column.setResizable(selection); |
| } |
| TreeColumn[] columns2 = tree2.getColumns(); |
| for (TreeColumn column : columns2) { |
| column.setResizable(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. |
| */ |
| @Override |
| 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 (); |
| if (oldFont != null) oldFont.dispose(); |
| oldColor = cellForegroundColor; |
| cellForegroundColor = null; |
| setCellForeground (); |
| if (oldColor != null) oldColor.dispose(); |
| oldColor = cellBackgroundColor; |
| cellBackgroundColor = null; |
| setCellBackground (); |
| if (oldColor != null) oldColor.dispose(); |
| oldFont = font; |
| cellFont = null; |
| setCellFont (); |
| if (oldFont != null) oldFont.dispose(); |
| oldColor = headerBackgroundColor; |
| headerBackgroundColor = null; |
| setHeaderBackground (); |
| if (oldColor != null) oldColor.dispose(); |
| oldColor = headerForegroundColor; |
| headerForegroundColor = null; |
| setHeaderForeground (); |
| if (oldColor != null) oldColor.dispose(); |
| |
| } |
| |
| /** |
| * Sets the state of the "Example" widgets. |
| */ |
| @Override |
| void setExampleWidgetState () { |
| setItemBackground (); |
| setItemForeground (); |
| setItemFont (); |
| setCellBackground (); |
| setCellForeground (); |
| setCellFont (); |
| setHeaderBackground (); |
| setHeaderForeground (); |
| if (!instance.startup) { |
| setColumnsMoveable (); |
| setColumnsResizable (); |
| setWidgetHeaderVisible (); |
| setWidgetSortIndicator (); |
| setWidgetLinesVisible (); |
| } |
| super.setExampleWidgetState (); |
| noScrollButton.setSelection ((tree1.getStyle () & SWT.NO_SCROLL) != 0); |
| checkButton.setSelection ((tree1.getStyle () & SWT.CHECK) != 0); |
| fullSelectionButton.setSelection ((tree1.getStyle () & SWT.FULL_SELECTION) != 0); |
| try { |
| TreeColumn column = tree1.getColumn(0); |
| moveableColumns.setSelection (column.getMoveable()); |
| resizableColumns.setSelection (column.getResizable()); |
| } catch (IllegalArgumentException ex) {} |
| headerVisibleButton.setSelection (tree1.getHeaderVisible()); |
| linesVisibleButton.setSelection (tree1.getLinesVisible()); |
| } |
| |
| /** |
| * Sets the background color of the Node 1 TreeItems in column 1. |
| */ |
| void setCellBackground () { |
| if (!instance.startup) { |
| textNode1.setBackground (1, cellBackgroundColor); |
| imageNode1.setBackground (1, cellBackgroundColor); |
| } |
| /* Set the background color item's image to match the background color of the cell. */ |
| Color color = cellBackgroundColor; |
| if (color == null) color = textNode1.getBackground (1); |
| TableItem item = colorAndFontTable.getItem(CELL_BACKGROUND_COLOR); |
| Image oldImage = item.getImage(); |
| if (oldImage != null) oldImage.dispose(); |
| item.setImage (colorImage(color)); |
| } |
| |
| /** |
| * Sets the foreground color of the Node 1 TreeItems in column 1. |
| */ |
| void setCellForeground () { |
| if (!instance.startup) { |
| textNode1.setForeground (1, cellForegroundColor); |
| imageNode1.setForeground (1, cellForegroundColor); |
| } |
| /* Set the foreground color item's image to match the foreground color of the cell. */ |
| Color color = cellForegroundColor; |
| if (color == null) color = textNode1.getForeground (1); |
| TableItem item = colorAndFontTable.getItem(CELL_FOREGROUND_COLOR); |
| Image oldImage = item.getImage(); |
| if (oldImage != null) oldImage.dispose(); |
| item.setImage (colorImage(color)); |
| } |
| |
| /** |
| * Sets the font of the Node 1 TreeItems in column 1. |
| */ |
| void setCellFont () { |
| if (!instance.startup) { |
| textNode1.setFont (1, cellFont); |
| imageNode1.setFont (1, cellFont); |
| } |
| /* Set the font item's image to match the font of the item. */ |
| Font ft = cellFont; |
| if (ft == null) ft = textNode1.getFont (1); |
| TableItem item = colorAndFontTable.getItem(CELL_FONT); |
| Image oldImage = item.getImage(); |
| if (oldImage != null) oldImage.dispose(); |
| item.setImage (fontImage(ft)); |
| item.setFont(ft); |
| colorAndFontTable.layout (); |
| } |
| |
| /** |
| * Sets the background color of the Node 1 TreeItems. |
| */ |
| void setItemBackground () { |
| if (!instance.startup) { |
| textNode1.setBackground (itemBackgroundColor); |
| imageNode1.setBackground (itemBackgroundColor); |
| } |
| /* Set the background button's color to match the background color of the item. */ |
| Color color = itemBackgroundColor; |
| if (color == null) color = textNode1.getBackground (); |
| TableItem item = colorAndFontTable.getItem(ITEM_BACKGROUND_COLOR); |
| Image oldImage = item.getImage(); |
| if (oldImage != null) oldImage.dispose(); |
| item.setImage (colorImage(color)); |
| } |
| |
| /** |
| * Sets the foreground color of the Node 1 TreeItems. |
| */ |
| void setItemForeground () { |
| if (!instance.startup) { |
| textNode1.setForeground (itemForegroundColor); |
| imageNode1.setForeground (itemForegroundColor); |
| } |
| /* Set the foreground button's color to match the foreground color of the item. */ |
| Color color = itemForegroundColor; |
| if (color == null) color = textNode1.getForeground (); |
| TableItem item = colorAndFontTable.getItem(ITEM_FOREGROUND_COLOR); |
| Image oldImage = item.getImage(); |
| if (oldImage != null) oldImage.dispose(); |
| item.setImage (colorImage(color)); |
| } |
| |
| /** |
| * Sets the font of the Node 1 TreeItems. |
| */ |
| void setItemFont () { |
| if (!instance.startup) { |
| textNode1.setFont (itemFont); |
| imageNode1.setFont (itemFont); |
| } |
| /* Set the font item's image to match the font of the item. */ |
| Font ft = itemFont; |
| if (ft == null) ft = textNode1.getFont (); |
| TableItem item = colorAndFontTable.getItem(ITEM_FONT); |
| Image oldImage = item.getImage(); |
| if (oldImage != null) oldImage.dispose(); |
| item.setImage (fontImage(ft)); |
| item.setFont(ft); |
| colorAndFontTable.layout (); |
| } |
| |
| /** |
| * Sets the header visible state of the "Example" widgets. |
| */ |
| void setWidgetHeaderVisible () { |
| tree1.setHeaderVisible (headerVisibleButton.getSelection ()); |
| tree2.setHeaderVisible (headerVisibleButton.getSelection ()); |
| } |
| |
| /** |
| * Sets the sort indicator state of the "Example" widgets. |
| */ |
| void setWidgetSortIndicator () { |
| if (sortIndicatorButton.getSelection ()) { |
| initializeSortState (tree1); |
| initializeSortState (tree2); |
| } else { |
| resetSortState (tree1); |
| resetSortState (tree2); |
| } |
| } |
| |
| /** |
| * Sets the initial sort indicator state and adds a listener |
| * to cycle through sort states and columns. |
| */ |
| void initializeSortState (final Tree tree) { |
| /* Reset to known state: 'down' on column 0. */ |
| tree.setSortDirection (SWT.DOWN); |
| TreeColumn [] columns = tree.getColumns(); |
| for (int i = 0; i < columns.length; i++) { |
| TreeColumn column = columns[i]; |
| if (i == 0) tree.setSortColumn(column); |
| SelectionListener listener = widgetSelectedAdapter(e -> { |
| int sortDirection = SWT.DOWN; |
| if (e.widget == tree.getSortColumn()) { |
| /* If the sort column hasn't changed, cycle down -> up -> none. */ |
| switch (tree.getSortDirection ()) { |
| case SWT.DOWN: sortDirection = SWT.UP; break; |
| case SWT.UP: sortDirection = SWT.NONE; break; |
| } |
| } else { |
| tree.setSortColumn((TreeColumn)e.widget); |
| } |
| tree.setSortDirection (sortDirection); |
| }); |
| column.addSelectionListener(listener); |
| column.setData("SortListener", listener); //$NON-NLS-1$ |
| } |
| } |
| |
| void resetSortState (final Tree tree) { |
| tree.setSortDirection (SWT.NONE); |
| TreeColumn [] columns = tree.getColumns(); |
| for (TreeColumn column : columns) { |
| SelectionListener listener = (SelectionListener)column.getData("SortListener"); //$NON-NLS-1$ |
| if (listener != null) column.removeSelectionListener(listener); |
| } |
| } |
| |
| /** |
| * Sets the lines visible state of the "Example" widgets. |
| */ |
| void setWidgetLinesVisible () { |
| tree1.setLinesVisible (linesVisibleButton.getSelection ()); |
| tree2.setLinesVisible (linesVisibleButton.getSelection ()); |
| } |
| |
| @Override |
| protected void specialPopupMenuItems(Menu menu, Event event) { |
| MenuItem item = new MenuItem(menu, SWT.PUSH); |
| item.setText("getItem(Point) on mouse coordinates"); |
| final Tree t = (Tree) event.widget; |
| menuMouseCoords = t.toControl(new Point(event.x, event.y)); |
| item.addSelectionListener(widgetSelectedAdapter(e -> { |
| eventConsole.append ("getItem(Point(" + menuMouseCoords + ")) returned: " + t.getItem(menuMouseCoords)); |
| eventConsole.append ("\n"); |
| })); |
| } |
| } |