eclipse popup window - eclipse

Question

How can I create popup window similar to the window used in eclipse jdt for javadoc. I need to show additional info when mouse hovers over a graph node.

Answer 1

I think the IInformationPresenter (eclipse.org API) interface can help you here.
A well-written tutorial on how to use it can be found at IBM:
"Equipping SWT applications with content assistants" by Berthold Daum

Answer 2

org.eclipse.jface.dialogs.PopupDialog seems like a good starting point.

Answer 3

got this code from here:
public class InfoPopUp extends PopupDialog {
/**
* The text control that displays the text.
*/
private Text text;
/**
* The String shown in the popup.
*/
private String contents = "";
private final static int SHELL_STYLE = PopupDialog.INFOPOPUP_SHELLSTYLE;
public InfoPopUp(Shell parent, String infoText) {
this(parent, SHELL_STYLE, false, false, false, false, false, null,
infoText);
}
public InfoPopUp(Shell parent, String titleText, String infoText) {
this(parent, SHELL_STYLE, false, false, false, true, true, titleText,
infoText);
}
public InfoPopUp(Shell parent, int shellStyle, boolean takeFocusOnOpen,
boolean persistSize, boolean persistLocation,
boolean showDialogMenu, boolean showPersistActions,
String titleText, String infoText) {
super(parent, shellStyle, takeFocusOnOpen, persistSize,
persistLocation, showDialogMenu, showPersistActions, titleText,
infoText);
}
/**
* This method is used to show the animation by decreasing the x and y
* coordinates and by setting the size dynamically.
*
* #param shell
* of type {#link Shell}
*/
private static void doAnimation(Shell shell) {
Point shellArea = shell.getSize();
int x = shellArea.x;
int y = shellArea.y;
while (x != -200) {
try {
shell.setSize(x--, y--);
} catch (Exception e) {
e.printStackTrace();
}
}
}
protected void fillDialogMenu(IMenuManager dialogMenu) {
dialogMenu.addMenuListener(new IMenuListener() {
public void menuAboutToShow(IMenuManager arg0) {
handleShellCloseEvent();
}
});
}
protected void handleShellCloseEvent() {
// Comment out the following if do not want any kind of animated effect.
doAnimation(getShell());
super.handleShellCloseEvent();
}
protected Control createDialogArea(Composite parent) {
text = new Text(parent, SWT.MULTI | SWT.READ_ONLY | SWT.WRAP | SWT.NO_FOCUS);
text.setText(contents);
return text;
}
protected void adjustBounds() {
super.adjustBounds();
// Point pt = getShell().getDisplay().getCursorLocation();
// getShell().setBounds(pt.x,pt.y,rectangle.width,rectangle.height);
}
/**
* Method to set the text contents of the InfoPop dialog
*
* #param textContents
* of type String indicating the message
*/
public void setText(String textContents) {
this.contents = textContents;
}
protected Control createTitleMenuArea(Composite arg0) {
Control ctrl = super.createTitleMenuArea(arg0);
Composite composite = (Composite) ctrl;
Control[] ctrls = composite.getChildren();
ToolBar toolBar = (ToolBar) ctrls[1];
ToolItem[] toolItems = toolBar.getItems();
toolItems[0].setImage(Display.getDefault().getSystemImage(SWT.ICON_WARNING));
return ctrl;
}
}