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[phpeclipse.git] / net.sourceforge.phpeclipse.phphelp / src / net / sourceforge / phpdt / httpquery / preferences / SWTUtil.java

diff --git a/net.sourceforge.phpeclipse.phphelp/src/net/sourceforge/phpdt/httpquery/preferences/SWTUtil.java b/net.sourceforge.phpeclipse.phphelp/src/net/sourceforge/phpdt/httpquery/preferences/SWTUtil.java
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+/**********************************************************************
+ * Copyright (c) 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 - Initial API and implementation
+ **********************************************************************/
+package net.sourceforge.phpdt.httpquery.preferences;
+
+import org.eclipse.jface.dialogs.Dialog;
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.jface.resource.JFaceResources;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.FontMetrics;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+/**
+ * SWT Utility class.
+ */
+public class SWTUtil {
+       private static FontMetrics fontMetrics;
+
+       protected static void initializeDialogUnits(Control testControl) {
+               // Compute and store a font metric
+               GC gc = new GC(testControl);
+               gc.setFont(JFaceResources.getDialogFont());
+               fontMetrics = gc.getFontMetrics();
+               gc.dispose();
+       }
+
+       /**
+        * Returns a width hint for a button control.
+        */
+       protected static int getButtonWidthHint(Button button) {
+               int widthHint = Dialog.convertHorizontalDLUsToPixels(fontMetrics, IDialogConstants.BUTTON_WIDTH);
+               return Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
+       }
+       
+       public static Button createButton(Composite comp, String label) {
+               Button b = new Button(comp, SWT.PUSH);
+               b.setText(label);
+               if (fontMetrics == null)
+                       initializeDialogUnits(comp);
+               GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING);
+               data.widthHint = getButtonWidthHint(b);
+               data.heightHint = Dialog.convertVerticalDLUsToPixels(fontMetrics, IDialogConstants.BUTTON_HEIGHT);
+               b.setLayoutData(data);
+               return b;
+       }
+       
+       public static Button createCheckbox(Composite comp, String txt, boolean isSelected){
+               Button button = new Button(comp, SWT.CHECK);
+               button.setText(txt);
+               GridLayout layout = new GridLayout();
+               comp.setLayout(layout);
+               GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING);
+               data.horizontalIndent = 10;
+               button.setLayoutData(data);
+               button.setSelection(isSelected);
+               return button;
+       }
+       
+       public static Label createLabel(Composite comp, String txt) {
+               Label label = new Label(comp, SWT.NONE);
+               label.setText(txt);
+               label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.VERTICAL_ALIGN_BEGINNING));
+               return label;
+       }
+}