[英]JFace ApplicationWindow: createContents isn't working
我試圖創建一個分為三個部分的窗口。 不可調整大小的頁眉和頁腳,然后是內容區域,該區域會擴展以填充窗口中的其余區域。 首先,我創建了以下課程:
public class MyWindow extends ApplicationWindow {
Color white;
Font mainFont;
Font headerFont;
public MyWindow() {
super(null);
}
protected Control createContents(Composite parent) {
Display currentDisplay = Display.getCurrent();
white = new Color(currentDisplay, 255, 255, 255);
mainFont = new Font(currentDisplay, "Tahoma", 8, 0);
headerFont = new Font(currentDisplay, "Tahoma", 16, 0);
// Main layout Composites and overall FillLayout
Composite container = new Composite(parent, SWT.NO_RADIO_GROUP);
Composite header = new Composite(container, SWT.NO_RADIO_GROUP);
Composite mainContents = new Composite(container, SWT.NO_RADIO_GROUP);;
Composite footer = new Composite(container, SWT.NO_RADIO_GROUP);;
FillLayout containerLayout = new FillLayout(SWT.VERTICAL);
container.setLayout(containerLayout);
// Header
Label headerLabel = new Label(header, SWT.LEFT);
headerLabel.setText("Header");
headerLabel.setFont(headerFont);
// Main contents
Label contentsLabel = new Label(mainContents, SWT.CENTER);
contentsLabel.setText("Main Content Here");
contentsLabel.setFont(mainFont);
// Footer
Label footerLabel = new Label(footer, SWT.CENTER);
footerLabel.setText("Footer Here");
footerLabel.setFont(mainFont);
return container;
}
public void dispose() {
cleanUp();
}
@Override
protected void finalize() throws Throwable {
cleanUp();
super.finalize();
}
private void cleanUp() {
if (headerFont != null) {
headerFont.dispose();
}
if (mainFont != null) {
mainFont.dispose();
}
if (white != null) {
white.dispose();
}
}
}
當我像這樣運行它時,這將導致一個空窗口:
public static void main(String[] args) {
MyWindow myWindow = new MyWindow();
myWindow.setBlockOnOpen(true);
myWindow.open();
Display.getCurrent().dispose();
}
我沒有看到嘗試顯示三個標簽的方式,這是我做錯了嗎? 肯定會調用createContents
代碼,我可以在Eclipse的調試模式下逐步進行調試。
顯然,我需要設置標簽的大小和位置才能使其顯示。
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