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Ich versuche, eine benutzerdefinierte Formulareditorseite zu erstellen. Auf der Formularseite muss ich eine Tabelle haben, in der ich Schlüsselwertpaare auflisten kann. Die Eigenschaftslistentabelle, die ich als wiederverwendbare Komponente erstellen möchte.So entfernen Sie unerwünschten Speicherplatz auf einem Composite?
Ich habe das Formular erstellt, aber es gibt unerwünschten Platz vor der Eigenschaften Tabelle Composite (siehe Bild unten). Wie kann ich diesen leeren Raum loswerden?
Unten ist mein Code für das Formular Seite
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.forms.IManagedForm;
import org.eclipse.ui.forms.widgets.ExpandableComposite;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.forms.widgets.Section;
import org.eclipse.ui.forms.editor.FormPage;
public class EnvironmentPage extends FormPage {
public EnvironmentPage(FormEditor editor) {
super(editor, Activator.PLUGIN_ID + ".amf.environment", "Environment");
}
@Override
protected void createFormContent(IManagedForm managedForm) {
FormToolkit toolkit = managedForm.getToolkit();
ScrolledForm form = managedForm.getForm();
form.setText("Environment");
Composite body = form.getBody();
GridLayout gridLayout = new GridLayout(2, true);
body.setLayout(gridLayout);
toolkit.paintBordersFor(body);
Composite leftComposite = toolkit.createComposite(body, SWT.NONE);
leftComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
GridLayout leftCompositeLayout = new GridLayout();
leftCompositeLayout.marginWidth = 0;
leftCompositeLayout.marginHeight = 0;
leftComposite.setLayout(leftCompositeLayout);
createPropertiesSection(toolkit, leftComposite);
Composite rightComposite = toolkit.createComposite(body, SWT.NONE);
rightComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
GridLayout rightCompositeLayout = new GridLayout();
rightCompositeLayout.marginWidth = 0;
rightCompositeLayout.marginHeight = 0;
rightComposite.setLayout(rightCompositeLayout);
// TODO Controls on left composite
super.createFormContent(managedForm);
}
private void createPropertiesSection(FormToolkit toolkit, Composite leftComposite) {
Section section = toolkit.createSection(leftComposite,
ExpandableComposite.TITLE_BAR | ExpandableComposite.EXPANDED | ExpandableComposite.TWISTIE);
section.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
section.setText("Log4J Properties");
Composite log4jComposite = toolkit.createComposite(section, SWT.BORDER);
toolkit.adapt(log4jComposite);
GridLayout gridLayout = new GridLayout();
gridLayout.marginBottom = 0;
gridLayout.marginHeight = 0;
gridLayout.marginWidth = 0;
log4jComposite.setLayout(gridLayout);
log4jComposite.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, true));
section.setClient(log4jComposite);
PropertiesEditor propsEditor = new PropertiesEditor(log4jComposite, SWT.NONE) {
@Override
public void loadData() {
// TODO Auto-generated method stub
}
};
propsEditor.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false, 1, 1));
toolkit.paintBordersFor(section);
}
}
Unter den Eigenschaften-Editor Klasse
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
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.Label;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.ui.forms.widgets.FormToolkit;
public abstract class PropertiesEditor extends Composite {
protected FormToolkit toolkit;
protected Button btnRemove;
protected Button btnAdd;
protected Table propertiesTable;
public PropertiesEditor(Composite parent, int style) {
super(parent, style);
toolkit = new FormToolkit(parent.getDisplay());
createComposite(parent);
}
private void createComposite(Composite parent) {
Composite propertiesGroup = toolkit.createComposite(parent, SWT.BORDER);
GridLayout gridLayout = new GridLayout(2, false);
gridLayout.marginWidth = 1;
gridLayout.marginHeight = 1;
gridLayout.verticalSpacing = 1;
propertiesGroup.setLayout(gridLayout);
propertiesGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
propertiesTable = toolkit.createTable(propertiesGroup, SWT.BORDER | SWT.FULL_SELECTION);
propertiesTable.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
propertiesTable.setHeaderVisible(true);
propertiesTable.setLinesVisible(true);
propertiesTable.setData("name", "properties-table");
toolkit.adapt(propertiesTable, true, true);
TableColumn tableColumnKey = new TableColumn(propertiesTable, SWT.NONE);
tableColumnKey.setText("Key");
TableColumn tableColumValue = new TableColumn(propertiesTable, SWT.NONE);
tableColumValue.setText("Value");
propertiesTable.addControlListener(new ControlAdapter() {
public void controlResized(ControlEvent e) {
tableColumnKey.setWidth((int) (propertiesTable.getClientArea().width * 0.3));
tableColumValue.setWidth((int) (propertiesTable.getClientArea().width * 0.7));
}
});
Composite buttonsGroup = toolkit.createComposite(propertiesGroup, SWT.NONE);
buttonsGroup.setLayoutData(new GridData(SWT.CENTER, SWT.FILL, false, true, 1, 1));
GridLayout buttonsLayout = new GridLayout();
buttonsLayout.marginWidth = 10;
buttonsGroup.setLayout(buttonsLayout);
new Label(buttonsGroup, SWT.NONE);
new Label(buttonsGroup, SWT.NONE);
btnAdd = toolkit.createButton(buttonsGroup, "Add", SWT.NONE);
GridData gd_btnAdd = new GridData(SWT.CENTER, SWT.CENTER, false, false, 1, 1);
gd_btnAdd.widthHint = 60;
btnAdd.setLayoutData(gd_btnAdd);
toolkit.adapt(btnAdd, true, true);
btnRemove = toolkit.createButton(buttonsGroup, "Remove", SWT.NONE);
GridData gd_btnRemove = new GridData(SWT.CENTER, SWT.CENTER, false, false, 1, 1);
gd_btnRemove.widthHint = 60;
btnRemove.setLayoutData(gd_btnRemove);
toolkit.adapt(btnRemove, true, true);
}
public abstract void loadData();
}