public void onCellOver(CellOverEvent event) {
ListGridField gridField = AttributeListGrid.this.getField(event.getColNum());
if (gridField.getName().equals(attributeInfo.getName())) {
ListGridRecord record = event.getRecord();
String value = record.getAttribute(attributeInfo.getName());
if (event.getRowNum() != row) {
if (img != null) {
cleanup();
}
img = new Img(value);
img.setMaxWidth(300);
img.setMaxHeight(300);
img.setKeepInParentRect(true);
img.setShowEdges(true);
img.setLeft(AttributeListGrid.this.getAbsoluteLeft() + 10);
img.setTop(AttributeListGrid.this.getAbsoluteTop() + 10);
img.draw();
killTimer =
new Timer() {
public void run() {
img.destroy();
}
};
killTimer.schedule(Math.round(3000));
row = event.getRowNum();
}
}
}
public Canvas getViewPanel() {
VLayout layout = new VLayout();
layout.setMembersMargin(10);
final Img image = new Img("other/magnifier.png", 48, 48);
image.setTop(125);
image.setLeft(100);
image.setAnimateTime(500); // milliseconds
IButton zoomButton = new IButton();
zoomButton.setTitle("Zoom");
zoomButton.setLeft(40);
zoomButton.addClickHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
image.animateRect(0, 50, 248, 248);
}
});
IButton shrinkButton = new IButton();
shrinkButton.setTitle("Shrink");
shrinkButton.addClickHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
image.animateRect(100, 125, 48, 48);
}
});
HLayout hLayout = new HLayout();
hLayout.setMembersMargin(10);
hLayout.addMember(zoomButton);
hLayout.addMember(shrinkButton);
layout.addMember(hLayout);
layout.addChild(image);
return layout;
}