Das SWT (JFace)-Erfahrungssymbol kann geändert werden

复制代码代码如下:

Paket swt_jface.demo;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
öffentliche Klasse IconSelector {
Anzeige display = new Display();
Shell Shell = neue Shell(Anzeige);
Label labelIconFile;
Text textIconFile;

Schaltfläche buttonIconBrowse;
Schaltfläche buttonSetIcon;

Bild-ShellIcon;

Bild-ButtonIcon;

public IconSelector() {

initializeUI();

shell.pack();
shell.open();

while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}

private void initializeUI() {
GridLayout gridLayout = new GridLayout(3, false);
shell.setLayout(gridLayout);
labelIconFile = new Label(shell, SWT.NULL);

textIconFile = new Text(shell, SWT.SINGLE | SWT.BORDER);

GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
gridData.grabExcessHorizontalSpace = true;
textIconFile.setLayoutData(gridData);
buttonIconBrowse = new Button(shell, SWT.PUSH);
GridData = new GridData();
gridData.horizontalSpan = 3;
gridData.horizontalAlignment = GridData.CENTER;
buttonSetIcon = new Button(shell, SWT.PUSH);
buttonSetIcon.setLayoutData(gridData);
shell.setText("Icon Selector");
labelIconFile.setText("Wählen Sie ein Symbol aus:");
buttonIconBrowse.setText("Durchsuchen");
buttonSetIcon.setText("Symbol festlegen");
buttonIconBrowse.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
FileDialog dialog = new FileDialog(shell, SWT.OPEN);
String file = dialog.open();
if (file != null) {
textIconFile.setText(file);
}
}
});
buttonSetIcon.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if(shellIcon != null)
shellIcon.dispose();

versuchen {
shellIcon = new Image(display, textIconFile.getText());
shell.setImage(shellIcon);
}catch(Ausnahme ex) {
ex.printStackTrace();
}
}
});
}

public static void main(String[] args) {
neuer IconSelector();
}
}