private void createButton1_Click(object sender, EventArgs e)
{
Doc doc = new Doc();
Properties props = Properties.FromDoc(doc, true);
List <Group> groups = new List <Group>();
for (int i = 1; i < 4; i++)
{
groups.Add(props.AddGroup("Layer " + i.ToString(), null));
}
doc.FontSize = 36;
doc.Rect.Inset(20, 20);
for (int i = 0; i < 1; i++)
{
doc.Page = doc.AddPage();
Page page = (Page)doc.ObjectSoup[doc.Page];
Writer writer = new Writer(props, page);
foreach (Group group in groups)
{
OptionalContent.Layer layer = writer.AddGroup(group);
writer.StartLayer(layer);
doc.AddText(group.EntryName.Text + "\r\n");
writer.EndLayer();
doc.AddText("Always Visible\r\n");
writer.StartLayer(layer);
doc.AddText(group.EntryName.Text + "\r\n\r\n");
writer.EndLayer();
}
doc.Flatten();
}
LoadPDF(doc);
}
private void createButton2_Click(object sender, EventArgs e)
{
Doc doc = new Doc();
Properties props = Properties.FromDoc(doc, true);
Group parent = null;
List <Group> groups = new List <Group>();
// The Optional Content Group parent determines the nesting in the UI.
// The presentation of the nesting is separate from the actual nesting
// of visibility. In general you will want to ensure the two correspond
// as in the code here.
for (int i = 1; i <= 10; i++)
{
Group group = props.AddGroup("Layer " + i.ToString(), parent);
groups.Add(group);
parent = i == 5 ? null : group;
}
doc.Page = doc.AddPage();
doc.FontSize = 36;
doc.Rect.Inset(20, 20);
Page page = (Page)doc.ObjectSoup[doc.Page];
Writer writer = new Writer(props, page);
// This determines the nesting of actual visibility. Here we ensure that this
// corresponds to the hierarchy specified in the UI so that it works in an
// obvious way.
for (int i = 0; i < groups.Count; i++)
{
Group group = groups[i];
OptionalContent.Layer layer = writer.AddGroup(group);
if (i == 5)
{
while (writer.Depth > 0)
{
writer.EndLayer();
}
}
writer.StartLayer(layer);
doc.AddText(group.EntryName.Text + "\r\n");
}
while (writer.Depth > 0)
{
writer.EndLayer();
}
doc.Flatten();
LoadPDF(doc);
}
private void createButton3_Click(object sender, EventArgs e)
{
Doc doc = new Doc();
Properties props = Properties.FromDoc(doc, true);
List <Group> groups = new List <Group>();
for (int i = 1; i < 4; i++)
{
groups.Add(props.AddGroup("Layer " + i.ToString(), null));
}
// membership policies are simple to use but limited in scope
MembershipGroup alloff = props.AddMembershipGroup();
alloff.Policy = MembershipGroup.PolicyEnum.AllOff;
alloff.PolicyGroups = groups;
// membership visibility expressions are more complex but more powerful
MembershipGroup mgve = props.AddMembershipGroup();
ArrayAtom ve = mgve.MakeVisibilityExpression(MembershipGroup.LogicEnum.Or, groups);
mgve.EntryVE = mgve.MakeVisibilityExpression(MembershipGroup.LogicEnum.Not, new ArrayAtom[] { ve });
doc.FontSize = 36;
doc.Rect.Inset(20, 20);
for (int i = 0; i < 3; i++)
{
doc.Page = doc.AddPage();
Page page = (Page)doc.ObjectSoup[doc.Page];
Writer writer = new Writer(props, page);
OptionalContent.Layer layer1 = writer.AddGroup(alloff);
doc.AddText("The next line uses a Policy so that it is only visible if all layers are turned off...\r\n");
writer.StartLayer(layer1);
doc.AddText("I am normally invisible\r\n\r\n");
writer.EndLayer();
OptionalContent.Layer layer2 = writer.AddGroup(mgve);
doc.AddText("The next line uses a Visibility Expression so that it is only visible if all layers are turned off...\r\n");
writer.StartLayer(layer2);
doc.AddText("I am normally invisible\r\n");
writer.EndLayer();
doc.Flatten();
}
LoadPDF(doc);
}