public synchronized void removeTab(int index) {
// setActiveTabIndex(index > 0 ? index-1 : getWidgetModel().getChildren().size()-1);
if (index < 0 || index >= getTabItemCount()) throw new IllegalArgumentException();
getWidgetModel().removeChild(getWidgetModel().getChildren().get(index));
getTabFigure().removeTab(index);
tabItemList.remove(index);
// left shift tab's properties
for (int j = index; j < getWidgetModel().getChildren().size(); j++) {
for (TabProperty tabProperty : TabProperty.values()) {
String propID1 = TabModel.makeTabPropID(tabProperty.propIDPre, j);
String propID2 = TabModel.makeTabPropID(tabProperty.propIDPre, j + 1);
getWidgetModel().setPropertyValue(propID1, getWidgetModel().getPropertyValue(propID2));
}
}
// updateTabItemsWithModel();
// update property sheet
getWidgetModel()
.setPropertyValue(TabModel.PROP_TAB_COUNT, getWidgetModel().getChildren().size(), false);
for (TabProperty tabProperty : TabProperty.values()) {
String propID =
TabModel.makeTabPropID(tabProperty.propIDPre, getWidgetModel().getChildren().size());
getWidgetModel().setPropertyVisible(propID, false);
}
// update active tab index to the new added tab
updateTabAreaSize();
setActiveTabIndex(index >= getWidgetModel().getChildren().size() ? index - 1 : index);
}
private void rightShiftTabProperties(int index) {
for (int j = getWidgetModel().getChildren().size() - 1; j > index; j--) {
for (TabProperty tabProperty : TabProperty.values()) {
String propID1 = TabModel.makeTabPropID(tabProperty.propIDPre, j - 1);
String propID2 = TabModel.makeTabPropID(tabProperty.propIDPre, j);
getWidgetModel().setPropertyValue(propID2, getWidgetModel().getPropertyValue(propID1));
}
}
}
@Override
public void execute() {
if (tabModel.getChildren().size() > 1) {
tabModel.removeTab(tabIndex);
executed = true;
} else
MessageDialog.openInformation(
null, "Failed to Remove Tab", "There must be at least one tab in the tab folder.");
}
private void registerTabPropertyChangeHandlers() {
// set prop handlers and init all the potential tabs
for (int i = 0; i < TabModel.MAX_TABS_AMOUNT; i++) {
for (TabProperty tabProperty : TabProperty.values()) {
String propID = TabModel.makeTabPropID(tabProperty.propIDPre, i);
IWidgetPropertyChangeHandler handler = new TabPropertyChangeHandler(i, tabProperty);
setPropertyChangeHandler(propID, handler);
}
}
for (int i = TabModel.MAX_TABS_AMOUNT - 1; i >= getWidgetModel().getTabsAmount(); i--) {
for (TabProperty tabProperty : TabProperty.values()) {
String propID = TabModel.makeTabPropID(tabProperty.propIDPre, i);
getWidgetModel().setPropertyVisible(propID, false);
}
}
}
/**
* Add a TabItem to the index;
*
* @param index
* @param tabItem
*/
public synchronized void addTab(int index, TabItem tabItem) {
if (index < 0 || index > getTabItemCount()) throw new IllegalArgumentException();
if (index >= TabModel.MAX_TABS_AMOUNT) return;
GroupingContainerModel groupingContainerModel = tabItem.getGroupingContainerModel();
getWidgetModel().addChild(index, groupingContainerModel);
getTabFigure().addTab((String) tabItem.getPropertyValue(TabProperty.TITLE), index);
tabItemList.add(index, tabItem);
initTabLabel(index, tabItem);
rightShiftTabProperties(index);
// apply tab properties from TabItem to TabModel
for (TabProperty tabProperty : TabProperty.values()) {
String propID = TabModel.makeTabPropID(tabProperty.propIDPre, index);
getWidgetModel().setPropertyValue(propID, tabItem.getPropertyValue(tabProperty));
}
// update property sheet
getWidgetModel()
.setPropertyValue(TabModel.PROP_TAB_COUNT, getWidgetModel().getChildren().size(), false);
for (TabProperty tabProperty : TabProperty.values()) {
String propID =
TabModel.makeTabPropID(tabProperty.propIDPre, getWidgetModel().getChildren().size() - 1);
getWidgetModel().setPropertyVisible(propID, true);
}
// update active tab index to the new added tab
updateTabAreaSize();
setActiveTabIndex(index);
}
@Override
protected void registerPropertyChangeHandlers() {
// init tabs
int i = 0;
for (AbstractWidgetModel child : getWidgetModel().getChildren()) {
if (child instanceof GroupingContainerModel) {
child.setPropertyValue(AbstractWidgetModel.PROP_VISIBLE, true);
child.setPropertyValue(AbstractWidgetModel.PROP_VISIBLE, false);
getTabFigure()
.addTab(
(String)
getWidgetModel()
.getPropertyValue(TabModel.makeTabPropID(TabProperty.TITLE.propIDPre, i)));
tabItemList.add(i, new TabItem(getWidgetModel(), i, (GroupingContainerModel) child));
for (TabProperty tabProperty : TabProperty.values())
setTabProperty(
i,
tabProperty,
getWidgetModel().getPropertyValue(TabModel.makeTabPropID(tabProperty.propIDPre, i)));
i++;
}
}
IWidgetPropertyChangeHandler relocContainerHandler =
new IWidgetPropertyChangeHandler() {
public boolean handleChange(Object oldValue, Object newValue, IFigure figure) {
updateTabAreaSize();
refreshVisuals();
return false;
}
};
setPropertyChangeHandler(AbstractWidgetModel.PROP_WIDTH, relocContainerHandler);
setPropertyChangeHandler(AbstractWidgetModel.PROP_HEIGHT, relocContainerHandler);
IWidgetPropertyChangeHandler horizontalHandler =
new IWidgetPropertyChangeHandler() {
public boolean handleChange(Object oldValue, Object newValue, IFigure figure) {
((TabFigure) figure).setHorizontal((Boolean) newValue);
updateTabAreaSize();
refreshVisuals();
return false;
}
};
setPropertyChangeHandler(TabModel.PROP_HORIZONTAL_TABS, horizontalHandler);
IWidgetPropertyChangeHandler activeTabHandler =
new IWidgetPropertyChangeHandler() {
public boolean handleChange(Object oldValue, Object newValue, IFigure figure) {
((TabFigure) figure).setActiveTabIndex((Integer) newValue);
updateTabAreaSize();
refreshVisuals();
return false;
}
};
setPropertyChangeHandler(TabModel.PROP_ACTIVE_TAB, activeTabHandler);
IWidgetPropertyChangeHandler handler =
new IWidgetPropertyChangeHandler() {
@Override
public boolean handleChange(Object oldValue, Object newValue, IFigure figure) {
((TabFigure) figure).setMinimumTabHeight((Integer) newValue);
return false;
}
};
setPropertyChangeHandler(TabModel.PROP_MINIMUM_TAB_HEIGHT, handler);
IWidgetPropertyChangeHandler updateTabAreaSizeHandler =
new IWidgetPropertyChangeHandler() {
@Override
public boolean handleChange(Object oldValue, Object newValue, IFigure figure) {
updateTabAreaSize();
return false;
}
};
setPropertyChangeHandler(TabModel.PROP_BORDER_WIDTH, updateTabAreaSizeHandler);
registerTabPropertyChangeHandlers();
registerTabsAmountChangeHandler();
}
@Override
public void undo() {
if (executed) tabModel.addTab(tabIndex, tabItem);
executed = false;
}