/*
* The following methods are responsible for creating new
* documents and opening existing documents from file paths
* supplied by the document management system.
*/
public IDockContent NewDocument()
{
/*
* This doesn't mean much for this demo as we'll just
* end up with an empty document.
*/
DocumentForm form = new DocumentForm();
form.Text = String.Format("untitled{0}{1}",
documentCount++, documentType.ToString());
form.FileName = form.Text;
form.FilePath = null;
return(form);
}
public IDockContent OpenDocument(string path, bool readOnly)
{
/*
* Activate the file if it's already been loaded.
*/
foreach (Document d in mainForm.ClientWindow.Documents)
{
if (d.FilePath != null &&
d.FilePath.ToLower() == path.ToLower() &&
!d.AllowDuplicates())
{
d.Activate();
return(null);
}
}
/*
* Create a new document and load the image.
*/
FileInfo fileInfo = new FileInfo(path);
DocumentForm form = new DocumentForm();
form.Text = fileInfo.Name;
form.FileName = form.Text;
form.FilePath = fileInfo.FullName;
/*
* Load the data.
*/
try
{
form.Image.Load(fileInfo.FullName);
}
catch
{
// Return null if open fails.
return(null);
}
return(form);
}
private void UpdateImageMenu()
{
/*
* When the menu is opened check if it is the correct
* document type and then set the menu state based on the
* document properties. Again there could be multiple
* menu items here but we only have one for this demo.
*/
DocumentForm form = mainForm.ActiveDocument as DocumentForm;
if (form == null)
{
return;
}
imageMenuStretch.Checked = form.Stretch;
}
private void UpdateToolbar()
{
/*
* The toolbar is always visible so we have to make
* some effort to keep it up to date. This method
* is called wherever an action could change the state
* of the toolbar.
*/
if (toolbarButtonStretch.Enabled)
{
DocumentForm form =
mainForm.ActiveDocument as DocumentForm;
if (form != null)
{
toolbarButtonStretch.Checked = form.Stretch;
}
}
else
{
toolbarButtonStretch.Checked = false;
}
}