本文整理汇总了Java中org.eclipse.jface.util.LocalSelectionTransfer.isSupportedType方法的典型用法代码示例。如果您正苦于以下问题：Java LocalSelectionTransfer.isSupportedType方法的具体用法？Java LocalSelectionTransfer.isSupportedType怎么用？Java LocalSelectionTransfer.isSupportedType使用的例子？那么, 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.jface.util.LocalSelectionTransfer的用法示例。
在下文中一共展示了LocalSelectionTransfer.isSupportedType方法的2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: validateDrop
import org.eclipse.jface.util.LocalSelectionTransfer; //导入方法依赖的package包/类
@Override
public boolean validateDrop(final Object target, final int operation, final TransferData transferType) {
// disable auto expand for tree items which have children
setExpandEnabled(false);
final LocalSelectionTransfer localTransfer = LocalSelectionTransfer.getTransfer();
if (localTransfer.isSupportedType(transferType) == false) {
return false;
}
final ISelection selection = localTransfer.getSelection();
if ((selection instanceof StructuredSelection) == false) {
return false;
}
final Object draggedItem = ((StructuredSelection) selection).getFirstElement();
// don't drop on itself
if (target == draggedItem) {
return false;
}
// check drop location
final int location = getCurrentLocation();
if ((location == LOCATION_AFTER || location == LOCATION_BEFORE) == false) {
return false;
}
if (draggedItem instanceof TVIMapProvider && target instanceof TVIMapProvider) {
// support the reorder of map providers
return true;
} else if (draggedItem instanceof TVIWmsLayer && target instanceof TVIWmsLayer) {
// support the reorder of wms layer
// check if the layers have the same parent
final TreeViewerItem draggedParent = ((TVIWmsLayer) draggedItem).getParentItem();
final TreeViewerItem targetParent = ((TVIWmsLayer) target).getParentItem();
if (draggedParent == targetParent) {
return true;
}
}
return false;
}
示例2: validateDrop
import org.eclipse.jface.util.LocalSelectionTransfer; //导入方法依赖的package包/类
@Override
public boolean validateDrop(final Object target, final int operation, final TransferData transferType) {
final LocalSelectionTransfer localTransfer = LocalSelectionTransfer.getTransfer();
if (localTransfer.isSupportedType(transferType) == false) {
return false;
}
final ISelection selection = localTransfer.getSelection();
if (selection instanceof StructuredSelection) {
final Object draggedItem = ((StructuredSelection) selection).getFirstElement();
if (target == draggedItem) {
// don't drop on itself
return false;
} else {
if (draggedItem instanceof TVIPrefTagCategory) {
if (target instanceof TVIPrefTagCategory) {
/*
* check if a dragged category item is dropped on one of it's children, this
* is not allowed
*/
final TVIPrefTagCategory itemDraggedCategory = (TVIPrefTagCategory) draggedItem;
final TVIPrefTagCategory itemTargetCategory = (TVIPrefTagCategory) target;
final long targetCategoryId = itemTargetCategory.getTourTagCategory().getCategoryId();
if (isDraggedIntoChildren(itemDraggedCategory, targetCategoryId)) {
return false;
}
} else if (target instanceof TVIPrefTag) {
return false;
}
}
return true;
}
}
return false;
}