本文整理汇总了Java中org.eclipse.swt.widgets.TreeItem.setGrayed方法的典型用法代码示例。如果您正苦于以下问题：Java TreeItem.setGrayed方法的具体用法？Java TreeItem.setGrayed怎么用？Java TreeItem.setGrayed使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.eclipse.swt.widgets.TreeItem的用法示例。
在下文中一共展示了TreeItem.setGrayed方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: updateChildrenItems
import org.eclipse.swt.widgets.TreeItem; //导入方法依赖的package包/类
/**
* Updates the check state of all created children
*/
private void updateChildrenItems(TreeItem parent) {
boolean state = parent.getChecked();
// do not implicitly check children, only uncheck
if(state) {
return;
}
Item[] children = getChildren(parent);
for (int i = 0; i < children.length; i++) {
TreeItem curr = (TreeItem) children[i];
if (curr.getData() != null
&& ((curr.getChecked() != state) || curr.getGrayed())) {
curr.setChecked(state);
curr.setGrayed(false);
updateChildrenItems(curr);
}
}
}
示例2: updateParentItems
import org.eclipse.swt.widgets.TreeItem; //导入方法依赖的package包/类
/**
* Updates the check / gray state of all parent items
*/
private void updateParentItems(TreeItem item) {
if (item != null) {
Item[] children = getChildren(item);
boolean containsChecked = false;
boolean containsUnchecked = false;
for (int i = 0; i < children.length; i++) {
TreeItem curr = (TreeItem) children[i];
containsChecked |= curr.getChecked();
containsUnchecked |= (!curr.getChecked() || curr.getGrayed());
}
item.setChecked(containsChecked);
item.setGrayed(containsChecked && containsUnchecked);
updateParentItems(item.getParentItem());
}
}
示例3: doCheckStateChanged
import org.eclipse.swt.widgets.TreeItem; //导入方法依赖的package包/类
/**
* Update element after a checkstate change.
* @param element
*/
protected void doCheckStateChanged(Object element) {
Widget item = findItem(element);
if (item instanceof TreeItem) {
TreeItem treeItem = (TreeItem) item;
treeItem.setGrayed(false);
updateChildrenItems(treeItem);
updateParentItems(treeItem.getParentItem());
}
}
示例4: selectAllParentItems
import org.eclipse.swt.widgets.TreeItem; //导入方法依赖的package包/类
private void selectAllParentItems(TreeItem selectedTreeItem) {
TreeItem parentTreeItem = selectedTreeItem.getParentItem();
// 当有一个未被选中的时候，取消父节点的选择,当全部选中，则父节点选中
if (parentTreeItem != null) {
TreeItem[] parentSubItems = parentTreeItem.getItems();
boolean allChecked = true;
boolean isGrayed = false;
for (int i = 0; i < parentSubItems.length; i++) {
allChecked = parentSubItems[i].getChecked();
if (!allChecked) {
break;
}
}
for (int i = 0; i < parentSubItems.length; i++) {
if (parentSubItems[i].getChecked()) {
isGrayed = true;
break;
}
}
if (isGrayed && allChecked) {
parentTreeItem.setChecked(allChecked);
parentTreeItem.setGrayed(!isGrayed);
}
if (!allChecked) {
parentTreeItem.setChecked(isGrayed);
parentTreeItem.setGrayed(isGrayed);
}
selectAllParentItems(parentTreeItem);
}
}