| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.junit.util; |
| |
| import org.eclipse.jdt.internal.junit.wizards.MethodStubsSelectionButtonGroup; |
| import org.eclipse.swt.SWT; |
| 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; |
| |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.util.Assert; |
| |
| import org.eclipse.jdt.internal.ui.util.PixelConverter; |
| |
| public class LayoutUtil { |
| |
| /* |
| * Calculates the number of columns needed by field editors |
| */ |
| public static int getNumberOfColumns(MethodStubsSelectionButtonGroup[] editors) { |
| int columnCount= 0; |
| for (int i= 0; i < editors.length; i++) { |
| columnCount= Math.max(editors[i].getNumberOfControls(), columnCount); |
| } |
| return columnCount; |
| } |
| |
| /* |
| * Creates a composite and fills in the given editors. |
| * @param labelOnTop Defines if the label of all fields should be on top of the fields |
| */ |
| public static void doDefaultLayout(Composite parent, MethodStubsSelectionButtonGroup[] editors, boolean labelOnTop) { |
| doDefaultLayout(parent, editors, labelOnTop, 0, 0, 0, 0); |
| } |
| |
| /* |
| * Creates a composite and fills in the given editors. |
| * @param labelOnTop Defines if the label of all fields should be on top of the fields |
| * @param minWidth The minimal width of the composite |
| * @param minHeight The minimal height of the composite |
| */ |
| public static void doDefaultLayout(Composite parent, MethodStubsSelectionButtonGroup[] editors, boolean labelOnTop, int minWidth, int minHeight) { |
| doDefaultLayout(parent, editors, labelOnTop, minWidth, minHeight, 0, 0); |
| } |
| |
| public static void doDefaultLayout(Composite parent, MethodStubsSelectionButtonGroup[] editors, boolean labelOnTop, int minWidth, int minHeight, int marginWidth, int marginHeight) { |
| int nCulumns= getNumberOfColumns(editors); |
| Control[][] controls= new Control[editors.length][]; |
| for (int i= 0; i < editors.length; i++) { |
| controls[i]= editors[i].doFillIntoGrid(parent, nCulumns); |
| } |
| if (labelOnTop) { |
| nCulumns--; |
| modifyLabelSpans(controls, nCulumns); |
| } |
| GridLayout layout= new GridLayout(); |
| if (marginWidth != SWT.DEFAULT) { |
| layout.marginWidth= marginWidth; |
| } |
| if (marginHeight != SWT.DEFAULT) { |
| layout.marginHeight= marginHeight; |
| } |
| // layout.minimumWidth= minWidth; |
| // layout.minimumHeight= minHeight; |
| layout.numColumns= nCulumns; |
| parent.setLayout(layout); |
| } |
| |
| private static void modifyLabelSpans(Control[][] controls, int nCulumns) { |
| for (int i= 0; i < controls.length; i++) { |
| setHorizontalSpan(controls[i][0], nCulumns); |
| } |
| } |
| |
| /* |
| * Sets the span of a control. Assumes that MGridData is used. |
| */ |
| public static void setHorizontalSpan(Control control, int span) { |
| Object ld= control.getLayoutData(); |
| if (ld instanceof GridData) { |
| ((GridData)ld).horizontalSpan= span; |
| } else if (span != 1) { |
| GridData gd= new GridData(); |
| gd.horizontalSpan= span; |
| control.setLayoutData(gd); |
| } |
| } |
| |
| /* |
| * Sets the width hint of a control. Assumes that MGridData is used. |
| */ |
| public static void setWidthHint(Control control, int widthHint) { |
| Object ld= control.getLayoutData(); |
| if (ld instanceof GridData) { |
| ((GridData)ld).widthHint= widthHint; |
| } |
| } |
| |
| /* |
| * Sets the horizontal indent of a control. Assumes that MGridData is used. |
| */ |
| public static void setHorizontalIndent(Control control, int horizontalIndent) { |
| Object ld= control.getLayoutData(); |
| if (ld instanceof GridData) { |
| ((GridData)ld).horizontalIndent= horizontalIndent; |
| } |
| } |
| |
| /* |
| * Creates a spacer control with the given span. |
| * The composite is assumed to have <code>MGridLayout</code> as |
| * layout. |
| * @param parent The parent composite |
| */ |
| public static Control createEmptySpace(Composite parent, int span) { |
| Label label= new Label(parent, SWT.LEFT); |
| GridData gd= new GridData(); |
| gd.horizontalAlignment= GridData.BEGINNING; |
| gd.grabExcessHorizontalSpace= false; |
| gd.horizontalSpan= span; |
| gd.horizontalIndent= 0; |
| gd.widthHint= 0; |
| gd.heightHint= 0; |
| label.setLayoutData(gd); |
| return label; |
| } |
| |
| |
| /** |
| * Returns a width hint for a button control. |
| * @param button the button for which to set the dimension hint |
| * @return the width hint |
| */ |
| public static int getButtonWidthHint(Button button) { |
| button.setFont(JFaceResources.getDialogFont()); |
| PixelConverter converter= new PixelConverter(button); |
| int widthHint= converter.convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); |
| return Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x); |
| } |
| |
| /** |
| * Sets width and height hint for the button control. |
| * <b>Note:</b> This is a NOP if the button's layout data is not |
| * an instance of <code>GridData</code>. |
| * |
| * @param button the button for which to set the dimension hint |
| */ |
| public static void setButtonDimensionHint(Button button) { |
| Assert.isNotNull(button); |
| Object gd= button.getLayoutData(); |
| if (gd instanceof GridData) { |
| ((GridData)gd).widthHint= getButtonWidthHint(button); |
| ((GridData)gd).horizontalAlignment = GridData.FILL; |
| } |
| } |
| |
| } |