SWT(JFace)体验之UI.FORMS包

最新推荐文章于 2015-08-16 13:53:00 发布

原创最新推荐文章于 2015-08-16 13:53:00 发布 · 1.5k 阅读

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CC 4.0 BY-SA版权

文章标签：

#swt #hyperlink #eclipse #image #import #menu

本文展示了使用Eclipse SWT和JFace创建不同UI组件的方法，包括简单的表单、自定义小部件及布局等。通过具体代码示例介绍了如何实现窗口、按钮、表单文本、超链接等功能。

Jar包一览：

org.eclipse.jface_3.4.2.M20090107-0800.jar
org.eclipse.swt.win32.win32.x86_3.4.1.v3452b.jar
org.eclipse.core.commands_3.4.0.I20080509-2000.jar
org.eclipse.core.runtime_3.4.0.v20080512.jar
org.eclipse.equinox.common_3.4.0.v20080421-2006.jar
org.eclipse.osgi_3.4.3.R34x_v20081215-1030.jar
commons-net-ftp-2.0.jar
org.eclipse.ui.forms_3.3.103.v20081027_34x.jar
com.ibm.icu_3.8.1.v20080530.jar

测试代码：

SimpleForm.java

CustomWidgets.java

package swt_jface.demo14; import org.eclipse.jface.window.ApplicationWindow; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Image; 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.Shell; import org.eclipse.ui.forms.HyperlinkGroup; import org.eclipse.ui.forms.events.ExpansionAdapter; import org.eclipse.ui.forms.events.ExpansionEvent; import org.eclipse.ui.forms.events.HyperlinkAdapter; import org.eclipse.ui.forms.events.HyperlinkEvent; import org.eclipse.ui.forms.events.IHyperlinkListener; import org.eclipse.ui.forms.widgets.ExpandableComposite; import org.eclipse.ui.forms.widgets.Form; import org.eclipse.ui.forms.widgets.FormText; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.Hyperlink; import org.eclipse.ui.forms.widgets.ImageHyperlink; import org.eclipse.ui.forms.widgets.Section; import org.eclipse.ui.forms.widgets.TableWrapLayout; public class CustomWidgets extends ApplicationWindow { FormToolkit toolkit; Form form; public CustomWidgets(Shell parentShell) { super(parentShell); } private void demoSections() { form.getBody().setLayout(new TableWrapLayout()); Section section = toolkit.createSection(form.getBody(), Section.DESCRIPTION | Section.TREE_NODE | Section.EXPANDED); section.setText("This is the title"); toolkit.createCompositeSeparator(section); section.setDescription("-= This is a description -="); FormText text = toolkit.createFormText(section, false); text.setText( "This is a long text. The user can show or hide this text " + "by expanding or collapsing the expandable composite.", false, false); section.setClient(text); } private void demoExpandableComposite() { form.getBody().setLayout(new TableWrapLayout()); ExpandableComposite ec1 = toolkit.createExpandableComposite( form.getBody(), ExpandableComposite.TREE_NODE | ExpandableComposite.EXPANDED); ec1.setText("This is the title"); FormText text = toolkit.createFormText(ec1, false); text.setText( "This is a long text. The user can show or hide this text " + "by expanding or collapsing the expandable composite.", false, false); ec1.setClient(text); ec1.addExpansionListener(new ExpansionAdapter() { public void expansionStateChanged(ExpansionEvent e) { // resizes the application window. getShell().pack(true); } }); } private void demoFormTextXML() { form.getBody().setLayout(new TableWrapLayout()); FormText text = toolkit.createFormText(form.getBody(), true); Image image = new Image(form.getDisplay(), "C:/icons/eclipse0.gif"); text.setImage("eclipse", image); text.setText( "<form>" + "<p><img href="/" mce_href="/""eclipse/"/> Eclipse Projects: </p>" + "<li><b>Platform</b> - Eclipse frameworks</li>" + "<li><b>JDT</b> - Java development tools</li>" + "<li><b>PDE</b> - Plug-in development environment</li>" + "</form>", true, false); } private void demoFormTextNormal() { form.getBody().setLayout(new TableWrapLayout()); FormText text = toolkit.createFormText(form.getBody(), true); // text.setLayoutData(new TableWrapData(TableWrapData.FILL)); text.setText( "Eclipse is a kind of universal tool platform - an open extensible " + "IDE for anything and nothing in particular. For more details, please " + "visit http://www.eclipse.org for more details.", false, false); } private void demoFormTextURL() { form.getBody().setLayout(new TableWrapLayout()); FormText text = toolkit.createFormText(form.getBody(), true); HyperlinkGroup group = new HyperlinkGroup(form.getDisplay()); group.setForeground(form.getDisplay().getSystemColor(SWT.COLOR_BLUE)); group.setActiveForeground(form.getDisplay().getSystemColor(SWT.COLOR_BLUE)); text.setHyperlinkSettings(group); text.setText( "Eclipse is a kind of universal tool platform - an open extensible " + "IDE for anything and nothing in particular. For more details, please " + "visit http://www.eclipse.org web site.", false, true); text.addHyperlinkListener(new HyperlinkAdapter() { public void linkActivated(HyperlinkEvent e) { System.out.println("Link activated: " + e.getHref()); } }); } private void demoHyperlinks() { form.getBody().setLayout(new GridLayout()); Hyperlink hyperlink = toolkit.createHyperlink( form.getBody(), "This is a hyperlink to Eclipse.org", SWT.NULL); hyperlink.setHref("http://www.eclipse.org"); hyperlink.setForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_BLUE)); hyperlink.addHyperlinkListener(new IHyperlinkListener() { public void linkEntered(HyperlinkEvent e) { System.out.println("Mouse entered."); } public void linkExited(HyperlinkEvent e) { System.out.println("Mouse left."); } public void linkActivated(HyperlinkEvent e) { System.out.println("Hyperlink activated."); System.out.println("HREF = " + e.getHref()); } }); ImageHyperlink imageHyperlink = toolkit.createImageHyperlink(form.getBody(), SWT.NULL); imageHyperlink.setText("This is an image hyperlink."); imageHyperlink.setForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_BLUE)); imageHyperlink.setImage(new Image(getShell().getDisplay(), "C:/icons/eclipse0.gif")); imageHyperlink.addHyperlinkListener(new HyperlinkAdapter() { public void linkActivated(HyperlinkEvent e) { System.out.println("Image hyperlink activated."); } }); HyperlinkGroup group = new HyperlinkGroup(getShell().getDisplay()); group.add(hyperlink); group.add(imageHyperlink); group.setActiveBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_YELLOW)); group.setActiveForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_RED)); group.setForeground(getShell().getDisplay().getSystemColor(SWT.COLOR_BLUE)); } protected Control createContents(Composite parent) { Composite composite = new Composite(parent, SWT.NULL); composite.setLayout(new GridLayout()); toolkit = new FormToolkit(getShell().getDisplay()); form = toolkit.createForm(composite); form.setLayoutData(new GridData(GridData.FILL_BOTH)); form.setText("Custom Form Widgets Demo"); //demoHyperlinks(); //demoFormTextNormal(); //demoFormTextURL(); //demoFormTextXML(); //demoExpandableComposite(); demoSections(); return composite; } public static void main(String[] args) { CustomWidgets win = new CustomWidgets(null); win.setBlockOnOpen(true); win.open(); } }

EmailForm.java

package swt_jface.demo14; import org.eclipse.jface.action.Action; import org.eclipse.jface.window.ApplicationWindow; 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.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.ScrolledForm; public class EmailForm extends ApplicationWindow { public EmailForm(Shell parentShell) { super(parentShell); } protected Control createContents(Composite parent) { Composite composite = new Composite(parent, SWT.NULL); composite.setLayout(new GridLayout()); FormToolkit toolkit = new FormToolkit(getShell().getDisplay()); // Form form = toolkit.createForm(composite); ScrolledForm form = toolkit.createScrolledForm(composite); form.setLayoutData(new GridData(GridData.FILL_BOTH)); form.setText("Composing an Email Message"); form.getBody().setLayout(new GridLayout(2, false)); toolkit.createLabel(form.getBody(), "To: ", SWT.NULL); Text textTo = toolkit.createText(form.getBody(), ""); textTo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); toolkit.createLabel(form.getBody(), "Subject: ", SWT.NULL); Text textSubject = toolkit.createText(form.getBody(), ""); textSubject.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); toolkit.createLabel(form.getBody(), "Message: ", SWT.NULL); Text textMessage = toolkit.createText(form.getBody(), ""); textMessage.setLayoutData(new GridData(GridData.FILL_BOTH)); toolkit.createLabel(form.getBody(), "Option: ", SWT.NULL); toolkit.createButton(form.getBody(), "save a copy", SWT.CHECK); Button buttonClose = toolkit.createButton(form.getBody(), "Close", SWT.PUSH); GridData gridData = new GridData(); gridData.horizontalSpan = 2; gridData.horizontalAlignment = GridData.END; buttonClose.setLayoutData(gridData); form.getToolBarManager().add(new Action("Send") { public void run() { System.out.println("Sending email ..."); } }); form.getToolBarManager().add(new Action("Cancel") { public void run() { System.out.println("Cancelled."); } }); form.updateToolBar(); return composite; } public static void main(String[] args) { EmailForm emailForm = new EmailForm(null); emailForm.setBlockOnOpen(true); emailForm.open(); } }

FormLayouts.java

package swt_jface.demo14; import org.eclipse.jface.window.ApplicationWindow; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; 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.eclipse.ui.forms.widgets.ColumnLayout; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.ScrolledForm; import org.eclipse.ui.forms.widgets.TableWrapData; import org.eclipse.ui.forms.widgets.TableWrapLayout; public class FormLayouts extends ApplicationWindow{ FormToolkit toolkit; ScrolledForm form; public FormLayouts(Shell parentShell) { super(parentShell); } private void demoColumnLayout() { ColumnLayout layout = new ColumnLayout(); layout.maxNumColumns = 4; form.getBody().setLayout(layout); Color color = form.getDisplay().getSystemColor(SWT.COLOR_YELLOW); Label label = null; for(int i=0; i<10; i++) { label = toolkit.createLabel(form.getBody(), "Text label #" + i); label.setBackground(color); } } private void demoTableWrapLayout() { TableWrapLayout layout = new TableWrapLayout(); layout.numColumns = 2; form.getBody().setLayout(layout); Color color = form.getDisplay().getSystemColor(SWT.COLOR_YELLOW); Label label = toolkit.createLabel(form.getBody(), "Some text spans over two columns in the first row. ", SWT.WRAP); TableWrapData data = new TableWrapData(); data.colspan = 2; label.setLayoutData(data); label.setBackground(color); label = toolkit.createLabel(form.getBody(), "Some text in the first column of the second row. and here is goes on and on ... ... ... ... ", SWT.WRAP); label.setBackground(color); label = toolkit.createLabel(form.getBody(), "Some text in the second column of the second row. ", SWT.WRAP); label.setBackground(color); } protected Control createContents(Composite parent) { Composite composite = new Composite(parent, SWT.NULL); composite.setLayout(new GridLayout()); toolkit = new FormToolkit(getShell().getDisplay()); form = toolkit.createScrolledForm(composite); form.setLayoutData(new GridData(GridData.FILL_BOTH)); form.setText("Form Layouts Demo"); demoTableWrapLayout(); //demoColumnLayout(); return composite; } public static void main(String[] args) { FormLayouts win = new FormLayouts(null); win.setBlockOnOpen(true); win.open(); } }