private void RunMultipageLayout()
{
// parse the pageWidth and pageHeight parameters
double pageWidth;
double pageHeight;
if (!Double.TryParse(pageWidthTextBox.Text, out pageWidth))
{
pageWidth = 800;
}
if (!Double.TryParse(pageHeightTextBox.Text, out pageHeight))
{
pageHeight = 800;
}
// get the core layout
string coreLayoutKey = coreLayoutComboBox.SelectedItem as string;
if (coreLayoutKey != null && coreLayouts.ContainsKey(coreLayoutKey))
{
coreLayout = coreLayouts[coreLayoutKey];
}
else
{
coreLayout = coreLayouts["Hierarchic"];
}
// a data provider for the node, edge, and label IDs:
// this data provider returns the node/edge/label instances themselves
var multiPageLayoutData = new MultiPageLayoutData
{
NodeIds = { Delegate = node => node },
EdgeIds = { Delegate = edge => edge },
NodeLabelIds = { Delegate = label => label },
EdgeLabelIds = { Delegate = label => label },
AbortHandler = abortHandler = new AbortHandler()
};
// apply the multi page layout
// multiPageLayout contains a list with the single page graphs
MultiPageLayout multiPageLayout = new MultiPageLayout(coreLayout)
{
MaximumPageSize = new YDimension(pageWidth, pageHeight),
LayoutCallback = new DelegateLayoutCallback(result => BeginInvoke(new Action(() => {
ApplyLayoutResult(result, pageWidth, pageHeight);
abortHandler = null;
ShowLoadingIndicator(false);
// force to update the command state
CommandManager.InvalidateRequerySuggested();
})))
};
// execute layout in thread to prevent ui blocking
new Thread(() => {
try {
modelGraph.ApplyLayout(multiPageLayout, multiPageLayoutData);
} catch (AlgorithmAbortedException) {
// layout was aborted
BeginInvoke(new Action(() => {
// reset abortHandler and loading indicator in the view thread
abortHandler = null;
ShowLoadingIndicator(false);
}));
}
}).Start();
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Gets the sheet layout.
/// </summary>
/// <param name="attributes">The attributes.</param>
/// <param name="defaultMultiPageLayout">The default multi page layout, whether simplex,
/// duplex or booklet.</param>
/// <returns>multi page layout value from the XML file, or the default value if not
/// specified</returns>
/// ------------------------------------------------------------------------------------
private MultiPageLayout GetSheetLayout(XmlAttributeCollection attributes,
MultiPageLayout defaultMultiPageLayout)
{
XmlNode sheetLayoutAttrib = attributes.GetNamedItem("SheetLayout");
if (sheetLayoutAttrib != null && sheetLayoutAttrib.Value != string.Empty)
{
try
{
return (MultiPageLayout)Enum.Parse(typeof(MultiPageLayout),
sheetLayoutAttrib.Value, true);
}
catch
{
string message;
#if DEBUG
message = "Error reading TePublications.xml: Unrecognized SheetLayout attribute: " +
"SheetLayout=\"" + sheetLayoutAttrib.Value + "\"";
#else
message = TeResourceHelper.GetResourceString("kstidInvalidInstallation");
#endif
throw new Exception(message);
}
}
return defaultMultiPageLayout;
}
