public void lnkShare_Click(object sender, EventArgs e)
{
if (m_Style.IsShared)
{
// The link is un-sharing. need to detect if any buttons except this one use this style
m_Button.SetStyleObject(null);
DatumList list = new DatumList();
Globals.Root.CurrentDocument.IterateEx(obj => obj.AddRequiredReferences(list.Add, Mapping.Ignore), false, false);
m_Button.SetStyleObject(m_OriginalStyle); // either way we put the object back in the button itself in case the user cancels this screen
if (list.Contains(m_Style) || m_Style.IsUserDefault)
{
// this style is referenced elsewhere. Need to make a copy
ButtonStyle newStyle = (ButtonStyle)m_Style.Clone(Mapping.Ignore);
newStyle.Name = "";
newStyle.IsShared = false;
m_Style = newStyle;
}
else
{
// this style is not used elsewhere; we can just make it shared
m_Style.IsShared = false;
Globals.Root.CurrentDocument.RemoveButtonStyle(m_Style);
// can keep the name
}
}
else // otherwise we are sharing a previously custom style
{
string name = frmButtonStyleName.Display(m_Style); // Name will only be set if this was previously shared
if (string.IsNullOrEmpty(name))
{
return;
}
m_Style.IsShared = true;
m_Style.Name = name;
m_Transaction.Edit(Globals.Root.CurrentDocument);
Globals.Root.CurrentDocument.AddButtonStyle(m_Style);
}
FillStylesList();
ReflectCustomState();
ctrStyle.DisplayStyle(m_Style);
}
/// <summary>The style to use for a newly created button. The page can be specified which will use the most prevalent style on the page in preference</summary>
internal static ButtonStyle GetStyleForNewButton(Page page)
{
ButtonStyle mostFrequent =
(from styleInfo in
(from shape in page
where shape.ShapeCode == Shape.Shapes.Button
group shape by((ButtonShape)shape).BackgroundStyleObject into g
select new { Style = g.Key, Appearances = g.Count() })
orderby styleInfo.Appearances descending
select styleInfo.Style).FirstOrDefault();
if (mostFrequent != null && mostFrequent.IsShared) // If not shared it should be only one occurrence anyway!
{
return(mostFrequent);
}
// Uses the last one which was accepted (cloned if necessary):
ButtonStyle style;
if (m_LastUsedStyle == null)
{
style = ButtonStyle.UserDefaultActionInstance;
}
else
{
if (m_LastUsedStyle.IsShared && m_LastUsedDocument == Globals.Root.CurrentDocument)
{
// can reuse the last one; it is shared
style = m_LastUsedStyle;
}
else
{
// want to use the last one, but need to make a copy of it
style = (ButtonStyle)m_LastUsedStyle.Clone(Mapping.Ignore);
Debug.Assert(style.IsShared == false);
}
}
return(style);
}