public void doSave(IProgressMonitor monitor) {
// TODO Auto-generated method stub
performSave(monitor, getEditorInput()); 自定义的一个save函数，作用是？
getCommandStack().markSaveLocation();
Marks the last executed or redone
Command as the point at which the changes were saved. Calculation of isDirty() will be based on this
checkpoint.
}
public void doSaveAs() {
// TODO Auto-generated method stub
Shell shell = getSite().getShell();
final IEditorInput input = getEditorInput();IEditorInput是什么？
SaveAsDialog dialog = new SaveAsDialog(shell);建立一个save as的dialog
IFile original = (input instanceof IFileEditorInput) ? ((IFileEditorInput) input).getFile(): null;
if (original != null){
dialog.setOriginalFile(original);}
dialog.create(); 这个是用来做什么？
creates this window‘s widgetry in a new top-level shell.
The default implementation of this
framework method creates this window‘s shell (by calling
createShell),
and its controls (by calling
createContents),
then initializes this window‘s shell
bounds (by calling initializeBounds).
int result = dialog.open();返回值是ok或者cancel
if (result == Window.CANCEL) {
return;这个return到哪里去？
}
IPath filePath = dialog.getResult();the path, ornullif Cancel was pressed
IFile file = null;
if (filePath == null) {
return;
} else {
file = ResourcesPlugin.getWorkspace().getRoot().getFile(filePath);通过路径找到文件。
}if (input.exists()) {
} else {
dialog.setErrorMessage(null);
dialog.setMessage(WARN_FILEEXIST, IMessageProvider.WARNING);
return;
}if(file.exists()){
}else{
try {
file.create(ResourceURLHelper.getNullInputStream(), true, null);
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
DiagramEditorInput newInput = new DiagramEditorInput(file.getLocation());performSave(getProgressMonitor(),newInput);
}
public boolean isSaveAsAllowed() {
// TODO Auto-generated method stub
return true;
}
private void performSave(IProgressMonitor monitor, IEditorInput input) {
if (diagram == null)
return;
同样的问题，return到哪里去？
diagram.doSaveXML();自定义save函数
Document xmlTree = diagram.getDiagramDoc();自定义函数
if (xmlTree == null)
return;
IFile file = ResourceUtil.getFile(getEditorInput());
OutputFormat format = OutputFormat.createPrettyPrint();
try {
FileWriter fileWriter;
fileWriter = new FileWriter((String) input.getAdapter(Path.class));
XMLWriter writer = new XMLWriter(fileWriter, format);
writer.write(xmlTree);
writer.close();
if (file != null) {
file.refreshLocal(IResource.DEPTH_ZERO,
new NullProgressMonitor());
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}