Hi,
I want to create a custom widget. It's based on ResizeComposite and it will
contain some special graphical stuff in a HeaderPanel.
I will have to rearrange the graphical stuff when the custom widget is
resized. I'm overriding the onResize()-Method of ResizeComposite for this
purpose,
but it seems not to be called when resizing occurs.
This is the (simplified) code of my custom widget:
public class DendrogramWidget extends ResizeComposite {
public static final String CLASSNAME = "dendrogram";
private HeaderPanel mainPanel;
private Button header = new Button("graph-header");
private Button footer = new Button("graph-footer");
private Label label = new Label("later on, here will come the graphical
stuff");
public DendrogramWidget() {
this.mainPanel = new HeaderPanel();
this.initWidget(this.mainPanel);
this.setStyleName(CLASSNAME);
this.mainPanel.setSize("100%", "100%");
this.mainPanel.add(header);
this.mainPanel.add(label);
this.mainPanel.add(footer);
this.mainPanel.setHeaderWidget(header);
this.mainPanel.setContentWidget(label);
this.mainPanel.setFooterWidget(footer);
this.header.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
String name = ((Button)event.getSource()).getText();
label.setText("clicked on "+name);
}
});
this.footer.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
String name = ((Button)event.getSource()).getText();
label.setText("clicked on "+name);
}
});
}
@Override
public void onResize() {
super.onResize();
label.setText("onResize() called ["+DendrogramWidget.this.
getOffsetWidth()+","+DendrogramWidget.this.getOffsetHeight()+"]");
}
}
As you can see, it's pretty simple (yet). I'm expecting the text of the
label being changed when resizing the widget, but nothing happens.
I'm new to GWT so maybe I'm missing something important.
Can anyone give me an advice what's going wrong here?
Thanks in advance,
Jens
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