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ShahzaibIbrahimHeikoKlare
ShahzaibIbrahim
authored and
HeikoKlare
committed
Updating control example by adding option to make Table/Tree editable
This commit is part of testing the custom controls for multi-monitor support.
1 parent 80086c9 commit d95a444

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3 files changed

+132
-2
lines changed

3 files changed

+132
-2
lines changed

‎examples/org.eclipse.swt.examples/src/examples_control.properties

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Original file line numberDiff line numberDiff line change
@@ -111,6 +111,7 @@ Header_Visible = Header Visible
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Sort_Indicator = Sort Indicator
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Header_Images = Header Images
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Sub_Images = Sub Images
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Editable = Editable
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Lines_Visible = Lines Visible
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Moveable_Columns = Moveable Columns
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Resizable_Columns = Resizable Columns

‎examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/TableTab.java

Lines changed: 74 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,16 +17,19 @@
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import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.custom.TableEditor;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.graphics.Font;
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import org.eclipse.swt.graphics.FontData;
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import org.eclipse.swt.graphics.Image;
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import org.eclipse.swt.graphics.Point;
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import org.eclipse.swt.graphics.RGB;
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import org.eclipse.swt.graphics.Rectangle;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.layout.GridLayout;
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import org.eclipse.swt.widgets.Button;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.swt.widgets.Group;
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import org.eclipse.swt.widgets.Item;
@@ -35,6 +38,7 @@
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import org.eclipse.swt.widgets.Table;
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import org.eclipse.swt.widgets.TableColumn;
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import org.eclipse.swt.widgets.TableItem;
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import org.eclipse.swt.widgets.Text;
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import org.eclipse.swt.widgets.Widget;
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class TableTab extends ScrollableTab {
@@ -49,7 +53,8 @@ class TableTab extends ScrollableTab {
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Button noScrollButton, checkButton, fullSelectionButton, hideSelectionButton;
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/* Other widgets added to the "Other" group */
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Button multipleColumns, moveableColumns, resizableColumns, headerVisibleButton, sortIndicatorButton, headerImagesButton, linesVisibleButton, subImagesButton;
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Button multipleColumns, moveableColumns, resizableColumns, headerVisibleButton, sortIndicatorButton,
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headerImagesButton, linesVisibleButton, subImagesButton, editableButton;
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/* Controls and resources added to the "Colors and Fonts" group */
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static final int ITEM_FOREGROUND_COLOR = 3;
@@ -248,6 +253,8 @@ void createOtherGroup () {
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headerImagesButton.setText (ControlExample.getResourceString("Header_Images"));
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subImagesButton = new Button (otherGroup, SWT.CHECK);
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subImagesButton.setText (ControlExample.getResourceString("Sub_Images"));
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editableButton = new Button(otherGroup, SWT.CHECK);
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editableButton.setText(ControlExample.getResourceString("Editable"));
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/* Add the listeners */
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linesVisibleButton.addSelectionListener (widgetSelectedAdapter(event -> setWidgetLinesVisible ()));
@@ -258,6 +265,72 @@ void createOtherGroup () {
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resizableColumns.addSelectionListener (widgetSelectedAdapter(event -> setColumnsResizable ()));
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headerImagesButton.addSelectionListener (widgetSelectedAdapter(event -> recreateExampleWidgets ()));
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subImagesButton.addSelectionListener (widgetSelectedAdapter(event -> recreateExampleWidgets ()));
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editableButton.addSelectionListener(widgetSelectedAdapter(event -> makeTableContentEditable()));
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}
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void makeTableContentEditable() {
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// Create a Text editor
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final TableEditor editor = new TableEditor(table1);
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editor.horizontalAlignment = SWT.LEFT;
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editor.grabHorizontal = true;
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// Listener to activate editor
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table1.addListener(SWT.MouseDoubleClick, event -> {
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if (!editableButton.getSelection()) {
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return;
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}
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Control oldEditor = editor.getEditor();
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if (oldEditor != null) {
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oldEditor.dispose();
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}
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Point point = new Point(event.x, event.y);
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final TableItem item = table1.getItem(point);
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if (item == null) {
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return;
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}
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final int column = findColumnContainingPoint(item, point);
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if (column == -1) {
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return;
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}
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final Text newEditor = new Text(table1, SWT.NONE);
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newEditor.setText(item.getText(column));
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newEditor.addModifyListener(e -> {
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Text text = (Text) editor.getEditor();
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item.setText(column, text.getText());
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});
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newEditor.selectAll();
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newEditor.setFocus();
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// Add a focus out listener to commit changes on focus lost
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newEditor.addListener(SWT.FocusOut, e -> {
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item.setText(newEditor.getText());
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newEditor.dispose(); // Dispose the text field after editing
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});
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// Add a key listener to commit changes on Enter key pressed
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newEditor.addListener(SWT.KeyDown, e -> {
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if (e.keyCode == SWT.CR || e.keyCode == SWT.KEYPAD_CR) {
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item.setText(newEditor.getText());
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newEditor.dispose(); // Dispose the text field after editing
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}
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});
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editor.setEditor(newEditor, item, column);
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});
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}
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private static int findColumnContainingPoint(TableItem item, Point point) {
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for (int i = 0; i < item.getParent().getColumnCount(); i++) {
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Rectangle rect = item.getBounds(i);
329+
if (rect.contains(point)) {
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return i;
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}
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}
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return -1;
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}
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/**

‎examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/TreeTab.java

Lines changed: 57 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,6 +17,7 @@
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import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.custom.TreeEditor;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.graphics.Font;
@@ -33,6 +34,7 @@
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import org.eclipse.swt.widgets.Menu;
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import org.eclipse.swt.widgets.MenuItem;
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import org.eclipse.swt.widgets.TableItem;
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import org.eclipse.swt.widgets.Text;
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import org.eclipse.swt.widgets.Tree;
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import org.eclipse.swt.widgets.TreeColumn;
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import org.eclipse.swt.widgets.TreeItem;
@@ -51,7 +53,7 @@ class TreeTab extends ScrollableTab {
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Button noScrollButton, checkButton, fullSelectionButton;
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/* Other widgets added to the "Other" group */
54-
Button multipleColumns, moveableColumns, resizableColumns, headerVisibleButton, sortIndicatorButton, headerImagesButton, subImagesButton, linesVisibleButton;
56+
Button multipleColumns, moveableColumns, resizableColumns, headerVisibleButton, sortIndicatorButton, headerImagesButton, subImagesButton, linesVisibleButton, editableButton;
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/* Controls and resources added to the "Colors and Fonts" group */
5759
static final int ITEM_FOREGROUND_COLOR = 3;
@@ -248,6 +250,8 @@ void createOtherGroup () {
248250
headerImagesButton.setText (ControlExample.getResourceString("Header_Images"));
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subImagesButton = new Button (otherGroup, SWT.CHECK);
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subImagesButton.setText (ControlExample.getResourceString("Sub_Images"));
253+
editableButton = new Button(otherGroup, SWT.CHECK);
254+
editableButton.setText(ControlExample.getResourceString("Editable"));
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252256
/* Add the listeners */
253257
linesVisibleButton.addSelectionListener (widgetSelectedAdapter(event -> setWidgetLinesVisible ()));
@@ -258,6 +262,58 @@ void createOtherGroup () {
258262
resizableColumns.addSelectionListener (widgetSelectedAdapter(event -> setColumnsResizable ()));
259263
headerImagesButton.addSelectionListener (widgetSelectedAdapter(event -> recreateExampleWidgets ()));
260264
subImagesButton.addSelectionListener (widgetSelectedAdapter(event -> recreateExampleWidgets ()));
265+
editableButton.addSelectionListener(widgetSelectedAdapter(event -> makeTreeContentEditable()));
266+
}
267+
268+
void makeTreeContentEditable() {
269+
makeTreeEditable(tree1);
270+
makeTreeEditable(tree2);
271+
}
272+
273+
private void makeTreeEditable(Tree tree) {
274+
final TreeEditor editor = new TreeEditor(tree);
275+
editor.horizontalAlignment = SWT.LEFT;
276+
editor.grabHorizontal = true;
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278+
tree.addListener(SWT.MouseDoubleClick, event -> {
279+
treeDoubleClickListener(tree, editor, event);
280+
});
281+
}
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283+
private void treeDoubleClickListener(Tree tree, final TreeEditor editor, Event event) {
284+
if (!editableButton.getSelection()) {
285+
return;
286+
}
287+
Point point = new Point(event.x, event.y);
288+
TreeItem item = tree.getItem(point);
289+
if (item == null) {
290+
return;
291+
}
292+
// Get the item text
293+
final String oldText = item.getText();
294+
295+
// Create a text field to edit the item text
296+
final Text text = new Text(tree, SWT.NONE);
297+
text.setText(oldText);
298+
text.selectAll();
299+
text.setFocus();
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301+
// Add a focus out listener to commit changes on focus lost
302+
text.addListener(SWT.FocusOut, e -> {
303+
item.setText(text.getText());
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text.dispose(); // Dispose the text field after editing
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});
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307+
// Add a key listener to commit changes on Enter key pressed
308+
text.addListener(SWT.KeyDown, e -> {
309+
if (e.keyCode == SWT.CR || e.keyCode == SWT.KEYPAD_CR) {
310+
item.setText(text.getText());
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text.dispose(); // Dispose the text field after editing
312+
}
313+
});
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315+
// Edit the text field on double click
316+
editor.setEditor(text, item);
261317
}
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/**

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