added label to build prefs that they can be overriden by checker

codan/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/internal/ui/preferences/BuildPropertyPage.java

@@ -14,6 +14,7 @@ import org.eclipse.cdt.codan.core.PreferenceConstants;
 import org.eclipse.cdt.codan.internal.ui.CodanUIActivator;
 import org.eclipse.cdt.codan.internal.ui.CodanUIMessages;
 import org.eclipse.cdt.codan.internal.ui.actions.ToggleNatureAction;
+import org.eclipse.cdt.codan.ui.LabelFieldEditor;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.jface.preference.BooleanFieldEditor;
@@ -40,6 +41,8 @@ public class BuildPropertyPage extends FieldEditorPreferencePage implements IWor
 	 */
 	@Override
 	protected void createFieldEditors() {
+		addField(new LabelFieldEditor("Set launch method for checkers, you can override this by editing individual problem settings",
+				getFieldEditorParent()));
 		addField(new BooleanFieldEditor(PreferenceConstants.P_RUN_ON_BUILD, CodanUIMessages.BuildPropertyPage_RunWithBuild,
 				getFieldEditorParent()));
 		addField(new BooleanFieldEditor(PreferenceConstants.P_RUN_IN_EDITOR, CodanUIMessages.BuildPropertyPage_RunAsYouType,

codan/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/ui/LabelFieldEditor.java

@@ -0,0 +1,107 @@
+/** ====================================================================
+ *   Copyright 2003-2004 Fabrizio Giustina.
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ * ====================================================================
+ */
+package org.eclipse.cdt.codan.ui;
+
+import org.eclipse.jface.preference.FieldEditor;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+
+/***
+ * A field editor for displaying labels not associated with other widgets.
+ * 
+ * @author fgiust
+ * @version $Revision: 1.3 $ ($Author: fgiust $)
+ * @since 1.1
+ */
+public class LabelFieldEditor extends FieldEditor {
+	/***
+	 * Label for this field editor.
+	 */
+	private Label label;
+
+	/***
+	 * All labels can use the same preference name since they don't store any
+	 * preference.
+	 * 
+	 * @param labelText text for the label
+	 * @param parent Composite
+	 */
+	public LabelFieldEditor(String labelText, Composite parent) {
+		super("label", labelText, parent); //$NON-NLS-1$
+	}
+
+	/***
+	 * Adjusts the field editor to be displayed correctly for the given number
+	 * of columns.
+	 * 
+	 * @param numColumns number of columns
+	 */
+	@Override
+	protected void adjustForNumColumns(int numColumns) {
+		((GridData) this.label.getLayoutData()).horizontalSpan = numColumns;
+	}
+
+	/***
+	 * Fills the field editor's controls into the given parent.
+	 * 
+	 * @param parent Composite
+	 * @param numColumns cumber of columns
+	 */
+	@Override
+	protected void doFillIntoGrid(Composite parent, int numColumns) {
+		this.label = getLabelControl(parent);
+		GridData gridData = new GridData();
+		gridData.horizontalSpan = numColumns;
+		gridData.horizontalAlignment = GridData.FILL;
+		gridData.grabExcessHorizontalSpace = false;
+		gridData.verticalAlignment = GridData.CENTER;
+		gridData.grabExcessVerticalSpace = false;
+		this.label.setLayoutData(gridData);
+	}
+
+	/***
+	 * Returns the number of controls in the field editor.
+	 * 
+	 * @return 1
+	 */
+	@Override
+	public int getNumberOfControls() {
+		return 1;
+	}
+
+	/***
+	 * Labels do not persist any preferences, so this method is empty.
+	 */
+	@Override
+	protected void doLoad() {
+	}
+
+	/***
+	 * Labels do not persist any preferences, so this method is empty.
+	 */
+	@Override
+	protected void doLoadDefault() {
+	}
+
+	/***
+	 * Labels do not persist any preferences, so this method is empty.
+	 */
+	@Override
+	protected void doStore() {
+	}
+}