public void Execute()
{
using (var manager = new ApplicationManager())
{
var section = manager.CurrentSection();
ns = section.GetNamespaceOfPrefix("one");
// find first selected - active page
var active =
section.Elements(ns + "Page")
.Where(e => e.Attributes("isCurrentlyViewed").Any(a => a.Value.Equals("true")))
.FirstOrDefault();
if (active == null)
{
UIHelper.ShowMessage(manager.Window, "At least two pages must be selected to merge");
return;
}
var selections =
section.Elements(ns + "Page")
.Where(e =>
e.Attributes("isCurrentlyViewed").Count() == 0 &&
e.Attributes("selected").Any(a => a.Value.Equals("all")));
if (active == null)
{
UIHelper.ShowMessage(manager.Window, "At least two pages must be selected to merge");
return;
}
// get first selected (active) page and reference its quick styles, outline, size
page = manager.GetPage(active.Attribute("ID").Value);
quickies = page.Elements(ns + "QuickStyleDef")
.Select(p => new QuickRef(p))
.ToList();
var offset = GetPageBottomOffset();
// track running bottom as we add new outlines
var maxOffset = offset;
// find maximum z-offset
var z = page.Elements(ns + "Outline").Elements(ns + "Position")
.Attributes("z").Max(a => int.Parse(a.Value)) + 1;
// merge each of the subsequently selected pages into the active page
foreach (var selection in selections.ToList())
{
var childPage = manager.GetPage(selection.Attribute("ID").Value);
var styles = MergeQuickStyles(childPage);
var topOffset = childPage.Elements(ns + "Outline")
.Elements(ns + "Position").Min(p => double.Parse(p.Attribute("y").Value));
foreach (var childOutline in childPage.Elements(ns + "Outline"))
{
// adjust position relative to new parent page outlines
var position = childOutline.Elements(ns + "Position").FirstOrDefault();
var y = double.Parse(position.Attribute("y").Value) - topOffset + offset + OutlineMargin;
position.Attribute("y").Value = y.ToString("#0.0");
// keep track of lowest bottom
var size = childOutline.Elements(ns + "Size").FirstOrDefault();
var bottom = y + double.Parse(size.Attribute("height").Value);
if (bottom > maxOffset)
{
maxOffset = bottom;
}
position.Attribute("z").Value = z.ToString();
z++;
// remove its IDs so the page can apply its own
childOutline.Attributes("objectID").Remove();
childOutline.Descendants().Attributes("objectID").Remove();
AdjustQuickStyles(styles, childOutline);
page.Add(childOutline);
}
if (maxOffset > offset)
{
offset = maxOffset;
}
}
// update page and section hierarchy
manager.UpdatePageContent(page);
foreach (var selection in selections)
{
manager.DeleteHierarchy(selection.Attribute("ID").Value);
}
}
}
