private void BuildColumns()
{
// Hidden expander column
TreeViewColumn col = new TreeViewColumn();
col.Visible = false;
AppendColumn(col);
ExpanderColumn = col;
source_column = new TreeViewColumn();
source_column.Sizing = TreeViewColumnSizing.Autosize;
uint xpad = 2;
// Special renderer for header rows; hidden for normal source rows
header_renderer = new CellRendererText()
{
Xpad = xpad,
Ypad = 4,
Ellipsize = Pango.EllipsizeMode.End,
Weight = (int)Pango.Weight.Bold,
Variant = Pango.Variant.SmallCaps
};
// Renderer for source rows; hidden for header rows
source_renderer = new SourceRowRenderer();
source_renderer.Xpad = xpad;
source_column.PackStart(header_renderer, true);
source_column.SetCellDataFunc(header_renderer, new Gtk.CellLayoutDataFunc((layout, cell, model, iter) => {
var type = (SourceModel.EntryType)model.GetValue(iter, (int)SourceModel.Columns.Type);
header_renderer.Visible = type == SourceModel.EntryType.Group;
source_renderer.Visible = type == SourceModel.EntryType.Source;
if (type == SourceModel.EntryType.Group)
{
var source = model.GetValue(iter, (int)SourceModel.Columns.Source) as Source;
header_renderer.Visible = true;
header_renderer.Text = source.Name;
}
else
{
header_renderer.Visible = false;
}
}));
int width, height;
Gtk.Icon.SizeLookup(IconSize.Menu, out width, out height);
source_renderer.RowHeight = RowHeight.Get();
source_renderer.RowHeight = height;
source_renderer.Ypad = (uint)RowPadding.Get();
source_renderer.Ypad = 2;
source_column.PackStart(source_renderer, true);
source_column.SetCellDataFunc(source_renderer, new CellLayoutDataFunc(SourceRowRenderer.CellDataHandler));
AppendColumn(source_column);
HeadersVisible = false;
}
private void BuildColumns()
{
// Hidden expander column
TreeViewColumn col = new TreeViewColumn();
col.Visible = false;
AppendColumn(col);
ExpanderColumn = col;
focus_column = new TreeViewColumn();
renderer = new SourceRowRenderer();
renderer.RowHeight = RowHeight.Get();
renderer.Padding = RowPadding.Get();
focus_column.PackStart(renderer, true);
focus_column.SetCellDataFunc(renderer, new CellLayoutDataFunc(SourceRowRenderer.CellDataHandler));
AppendColumn(focus_column);
HeadersVisible = false;
}
private void BuildColumns()
{
// Hidden expander column
TreeViewColumn col = new TreeViewColumn();
col.Visible = false;
AppendColumn(col);
ExpanderColumn = col;
source_column = new TreeViewColumn();
source_column.Sizing = TreeViewColumnSizing.Autosize;
uint xpad = 2;
// Special renderer for header rows; hidden for normal source rows
header_renderer = new CellRendererText()
{
Xpad = xpad,
Ypad = 4,
Ellipsize = Pango.EllipsizeMode.End,
Weight = (int)Pango.Weight.Bold,
Variant = Pango.Variant.SmallCaps
};
// Renderer for source rows; hidden for header rows
source_renderer = new SourceRowRenderer();
source_renderer.Xpad = xpad;
source_column.PackStart(header_renderer, true);
source_column.SetCellDataFunc(header_renderer, new Gtk.CellLayoutDataFunc((layout, cell, model, iter) => {
if (model == null)
{
throw new ArgumentNullException("model");
}
// be paranoid about the values returned from model.GetValue(), they may be null or have unexpected types, see bgo#683359
var obj_type = model.GetValue(iter, (int)SourceModel.Columns.Type);
if (obj_type == null || !(obj_type is SourceModel.EntryType))
{
var source = model.GetValue(iter, (int)SourceModel.Columns.Source) as Source;
var source_name = source == null ? "some source" : String.Format("source {0}", source.Name);
Log.ErrorFormat(
"SourceView of {0} could not render its source column because its type value returned {1} from the iter",
source_name, obj_type == null ? "null" : String.Format("an instance of {0}", obj_type.GetType().FullName));
header_renderer.Visible = false;
source_renderer.Visible = false;
return;
}
var type = (SourceModel.EntryType)obj_type;
header_renderer.Visible = type == SourceModel.EntryType.Group;
source_renderer.Visible = type == SourceModel.EntryType.Source;
if (type == SourceModel.EntryType.Group)
{
var source = (Source)model.GetValue(iter, (int)SourceModel.Columns.Source);
header_renderer.Visible = true;
header_renderer.Text = source.Name;
}
else
{
header_renderer.Visible = false;
}
}));
int width, height;
Gtk.Icon.SizeLookup(IconSize.Menu, out width, out height);
source_renderer.RowHeight = RowHeight.Get();
source_renderer.RowHeight = height;
source_renderer.Ypad = (uint)RowPadding.Get();
source_renderer.Ypad = 2;
source_column.PackStart(source_renderer, true);
source_column.SetCellDataFunc(source_renderer, new CellLayoutDataFunc(SourceRowRenderer.CellDataHandler));
AppendColumn(source_column);
HeadersVisible = false;
}