X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/wizards/dialogfields/SelectionButtonDialogField.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/wizards/dialogfields/SelectionButtonDialogField.java
new file mode 100644
index 0000000..57b9cd2
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/wizards/dialogfields/SelectionButtonDialogField.java
@@ -0,0 +1,197 @@
+/*******************************************************************************
+ * 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 net.sourceforge.phpdt.internal.ui.wizards.dialogfields;
+
+import net.sourceforge.phpdt.internal.ui.util.SWTUtil;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+/**
+ * Dialog Field containing a single button such as a radio or checkbox button.
+ */
+public class SelectionButtonDialogField extends DialogField {
+
+	private Button fButton;
+
+	private boolean fIsSelected;
+
+	private DialogField[] fAttachedDialogFields;
+
+	private int fButtonStyle;
+
+	/**
+	 * Creates a selection button. Allowed button styles: SWT.RADIO, SWT.CHECK,
+	 * SWT.TOGGLE, SWT.PUSH
+	 */
+	public SelectionButtonDialogField(int buttonStyle) {
+		super();
+		fIsSelected = false;
+		fAttachedDialogFields = null;
+		fButtonStyle = buttonStyle;
+	}
+
+	/**
+	 * Attaches a field to the selection state of the selection button. The
+	 * attached field will be disabled if the selection button is not selected.
+	 */
+	public void attachDialogField(DialogField dialogField) {
+		attachDialogFields(new DialogField[] { dialogField });
+	}
+
+	/**
+	 * Attaches fields to the selection state of the selection button. The
+	 * attached fields will be disabled if the selection button is not selected.
+	 */
+	public void attachDialogFields(DialogField[] dialogFields) {
+		fAttachedDialogFields = dialogFields;
+		for (int i = 0; i < dialogFields.length; i++) {
+			dialogFields[i].setEnabled(fIsSelected);
+		}
+	}
+
+	/**
+	 * Returns <code>true</code> is teh gived field is attached to the
+	 * selection button.
+	 */
+	public boolean isAttached(DialogField editor) {
+		if (fAttachedDialogFields != null) {
+			for (int i = 0; i < fAttachedDialogFields.length; i++) {
+				if (fAttachedDialogFields[i] == editor) {
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+	// ------- layout helpers
+
+	/*
+	 * @see DialogField#doFillIntoGrid
+	 */
+	public Control[] doFillIntoGrid(Composite parent, int nColumns) {
+		assertEnoughColumns(nColumns);
+
+		Button button = getSelectionButton(parent);
+		GridData gd = new GridData();
+		gd.horizontalSpan = nColumns;
+		gd.horizontalAlignment = GridData.FILL;
+		if (fButtonStyle == SWT.PUSH) {
+			gd.heightHint = SWTUtil.getButtonHeightHint(button);
+			gd.widthHint = SWTUtil.getButtonWidthHint(button);
+		}
+
+		button.setLayoutData(gd);
+
+		return new Control[] { button };
+	}
+
+	/*
+	 * @see DialogField#getNumberOfControls
+	 */
+	public int getNumberOfControls() {
+		return 1;
+	}
+
+	// ------- ui creation
+
+	/**
+	 * Returns the selection button widget. When called the first time, the
+	 * widget will be created.
+	 * 
+	 * @param The
+	 *            parent composite when called the first time, or
+	 *            <code>null</code> after.
+	 */
+	public Button getSelectionButton(Composite group) {
+		if (fButton == null) {
+			assertCompositeNotNull(group);
+
+			fButton = new Button(group, fButtonStyle);
+			fButton.setFont(group.getFont());
+			fButton.setText(fLabelText);
+			fButton.setEnabled(isEnabled());
+			fButton.setSelection(fIsSelected);
+			fButton.addSelectionListener(new SelectionListener() {
+				public void widgetDefaultSelected(SelectionEvent e) {
+					doWidgetSelected(e);
+				}
+
+				public void widgetSelected(SelectionEvent e) {
+					doWidgetSelected(e);
+				}
+			});
+		}
+		return fButton;
+	}
+
+	private void doWidgetSelected(SelectionEvent e) {
+		if (isOkToUse(fButton)) {
+			changeValue(fButton.getSelection());
+		}
+	}
+
+	private void changeValue(boolean newState) {
+		if (fIsSelected != newState) {
+			fIsSelected = newState;
+			if (fAttachedDialogFields != null) {
+				boolean focusSet = false;
+				for (int i = 0; i < fAttachedDialogFields.length; i++) {
+					fAttachedDialogFields[i].setEnabled(fIsSelected);
+					if (fIsSelected && !focusSet) {
+						focusSet = fAttachedDialogFields[i].setFocus();
+					}
+				}
+			}
+			dialogFieldChanged();
+		} else if (fButtonStyle == SWT.PUSH) {
+			dialogFieldChanged();
+		}
+	}
+
+	// ------ model access
+
+	/**
+	 * Returns the selection state of the button.
+	 */
+	public boolean isSelected() {
+		return fIsSelected;
+	}
+
+	/**
+	 * Sets the selection state of the button.
+	 */
+	public void setSelection(boolean selected) {
+		changeValue(selected);
+		if (isOkToUse(fButton)) {
+			fButton.setSelection(selected);
+		}
+	}
+
+	// ------ enable / disable management
+
+	/*
+	 * @see DialogField#updateEnableState
+	 */
+	protected void updateEnableState() {
+		super.updateEnableState();
+		if (isOkToUse(fButton)) {
+			fButton.setEnabled(isEnabled());
+		}
+	}
+
+}