Java tutorial
/******************************************************************************* * Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc. * Distributed under license by Red Hat, Inc. All rights reserved. * This program is 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: * Exadel, Inc. and Red Hat, Inc. - initial API and implementation ******************************************************************************/ package org.jboss.tools.common.model.ui.wizards.special; import org.jboss.tools.common.model.ui.action.CommandBar; import org.jboss.tools.common.model.ui.action.CommandBarLayout; import org.jboss.tools.common.model.ui.action.CommandBarListener; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.jboss.tools.common.meta.action.impl.SpecialWizardSupport; import org.jboss.tools.common.meta.impl.XModelEntityImpl; import org.jboss.tools.common.model.ui.ModelUIImages; public class DefaultSpecialWizardDialog extends TitleAreaDialog implements CommandBarListener { public static boolean hideHelp = XModelEntityImpl.hideHelp; private DefaultSpecialWizard wizard; private String[] commands = new String[0]; private CommandBar commandBar = null; private int pageWidth = 490; private int pageHeight = 225; private Point minimumSize = null; private Point maximumSize = null; public DefaultSpecialWizardDialog(Shell shell) { super(shell); } protected Control stepPage; protected Control createPage(Composite parent) { if (stepPage != null) { stepPage.dispose(); stepPage = null; } ISpecialWizardStep wizardStep = wizard.getWizardStep(); this.setTitleImage(ModelUIImages.getImage(ModelUIImages.WIZARD_DEFAULT)); return wizardStep.createControl(parent); } public void updateDialogArea() { stepPage = createPage((Composite) pageArea); Point size = stepPage.computeSize(SWT.DEFAULT, SWT.DEFAULT); size.x = Math.max(size.x, pageWidth); size.y = Math.max(size.y, pageHeight); GridData gd = (GridData) stepPage.getLayoutData(); if (gd == null) gd = new GridData(GridData.FILL_BOTH); gd.heightHint = size.y; stepPage.setLayoutData(gd); ((Composite) pageArea).layout(true); updateSizeForPage(); } protected Control pageArea; protected Control createPageArea(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); GridLayout gridLayout = new GridLayout(1, false); gridLayout.marginHeight = 0; gridLayout.marginWidth = 0; gridLayout.horizontalSpacing = 0; gridLayout.verticalSpacing = 0; composite.setLayout(gridLayout); return composite; } protected Composite dialogArea; protected Control createDialogArea(Composite parent) { dialogArea = new Composite(parent, SWT.NONE); GridLayout gridLayout = new GridLayout(1, false); gridLayout.marginHeight = 0; gridLayout.marginWidth = 0; gridLayout.horizontalSpacing = 0; gridLayout.verticalSpacing = 0; dialogArea.setLayout(gridLayout); // Build the separator line Label dialogAreaSeparator = new Label(dialogArea, SWT.HORIZONTAL | SWT.SEPARATOR); dialogAreaSeparator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); // Build the page area pageArea = createPageArea(dialogArea); GridData gd = new GridData(GridData.FILL_BOTH); gd.widthHint = pageWidth; gd.heightHint = pageHeight; pageArea.setLayoutData(gd); gd = new GridData(GridData.FILL_BOTH); gd.grabExcessVerticalSpace = true; dialogArea.setLayoutData(gd); return dialogArea; } protected Control createButtonBar(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); GridLayout gridLayout = new GridLayout(1, false); gridLayout.marginHeight = 0; gridLayout.marginWidth = 0; gridLayout.horizontalSpacing = 0; gridLayout.verticalSpacing = 0; composite.setLayout(gridLayout); GridData gd = new GridData(GridData.FILL_HORIZONTAL); //gd.heightHint = commandBarHeight; composite.setLayoutData(gd); // Build the separator line Label titleBarSeparator = new Label(composite, SWT.HORIZONTAL | SWT.SEPARATOR); titleBarSeparator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); // Build the command bar commandBar = new CommandBar(); CommandBarLayout cbl = new CommandBarLayout(); cbl.buttonHeight = convertHorizontalDLUsToPixels(20); cbl.buttonWidth = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); cbl.gap = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_MARGIN); cbl.left = 10; cbl.right = 10; cbl.top = 11; cbl.bottom = 10; commandBar.setLayout(cbl); Control control = commandBar.createControl(composite); commandBar.addCommandBarListener(this); commandBar.getLayout().alignment = SWT.RIGHT; gd = new GridData(GridData.FILL_BOTH); gd.heightHint = commandBar.getControl().computeSize(SWT.DEFAULT, SWT.DEFAULT).y; control.setLayoutData(gd); return composite; } public void updateButtonsBar(String[] newCommands) { newCommands = revalidateHelpInCommands(newCommands); if (!equal(commands, newCommands)) { commandBar.setCommands(commands = newCommands); commandBar.update(); ((Composite) commandBar.getControl()).layout(); } } private String[] revalidateHelpInCommands(String[] newCommands) { if (!hideHelp || newCommands.length == 0 || !newCommands[newCommands.length - 1].equals(SpecialWizardSupport.HELP)) return newCommands; String[] s = new String[newCommands.length - 1]; System.arraycopy(newCommands, 0, s, 0, s.length); return s; } private void setShellSize(int width, int height) { // clip for 3/4 desktop Rectangle displayArea = this.getShell().getDisplay().getClientArea(); if ((this.getMinimumSize() != null) && (this.getMinimumSize().x > displayArea.width)) { width = this.getMinimumSize().x; } else { width = Math.min(width, displayArea.width * 3 / 4); } if ((this.getMinimumSize() != null) && (this.getMinimumSize().y > displayArea.width)) { height = this.getMinimumSize().y; } else { height = Math.min(height, displayArea.height * 3 / 4); } if ((this.getMinimumSize() != null) && (this.getMinimumSize().x != SWT.DEFAULT) && (this.getMinimumSize().x > width)) { width = this.getMinimumSize().x; } if ((this.getMinimumSize() != null) && (this.getMinimumSize().y != SWT.DEFAULT) && (this.getMinimumSize().y > height)) { height = this.getMinimumSize().y; } if ((this.getMaximumSize() != null) && (this.getMaximumSize().x != SWT.DEFAULT) && (this.getMaximumSize().x < width)) { width = this.getMaximumSize().x; } if ((this.getMaximumSize() != null) && (this.getMaximumSize().y != SWT.DEFAULT) && (this.getMaximumSize().y < height)) { height = this.getMaximumSize().y; } getShell().setSize(width, height); constrainShellSize(); } private Point calculatePageSizeDelta() { Control pageControl = stepPage; if (pageControl == null) return new Point(0, 0); Point contentSize = pageControl.computeSize(SWT.DEFAULT, SWT.DEFAULT, true); contentSize.x = Math.max(contentSize.x, pageWidth); contentSize.y = Math.max(contentSize.y, pageHeight); // Rectangle displayArea = this.getShell().getDisplay().getClientArea(); // Point displaySize = new Point(displayArea.width, displayArea.height); // temp bugfix //contentSize.x = Math.min(contentSize.x,displaySize.x*3/4); //contentSize.y = Math.min(contentSize.y,displaySize.y*3/4); Rectangle rect = ((Composite) pageArea).getClientArea(); Point containerSize = new Point(rect.width, rect.height); return new Point(Math.max(0, contentSize.x - containerSize.x), Math.max(0, contentSize.y - containerSize.y)); } private void updateSizeForPage() { Point delta = calculatePageSizeDelta(); if (delta.x > 0 || delta.y > 0) { // increase the size of the shell Shell shell = getShell(); Point shellSize = shell.getSize(); setShellSize(shellSize.x + delta.x, shellSize.y + delta.y); } } private boolean equal(String[] s1, String[] s2) { if (s1 == null || s2 == null || s1.length != s2.length) return false; for (int i = 0; i < s1.length; i++) if (!s1[i].equals(s2[i])) return false; return true; } public boolean close() { if (wizard != null) wizard.stopValidator(); boolean b = super.close(); wizard = null; if (commandBar != null) commandBar.dispose(); commandBar = null; return b; } // CommandBarListener public void action(String command) { wizard.action(command); } public Control getButtonBar() { return buttonBar; } public DefaultSpecialWizard getWizard() { return wizard; } public void setWizard(DefaultSpecialWizard wizard) { this.wizard = wizard; } public Point getMinimumSize() { return minimumSize; } public void setMinimumSize(Point point) { minimumSize = point; } public Point getMaximumSize() { return maximumSize; } public void setMaximumSize(Point point) { maximumSize = point; } public CommandBar getCommandBar() { return commandBar; } }