private void PaintCell(int column_index, int row_index, Rectangle area, bool sensitive, StateType state, bool dragging)
{
Cell cell = column_cache [column_index].Column.ListCell;
try {
cell.BindListItem(row_index);
} catch (CellNotValidException) {
return;
}
if (dragging)
{
Cairo.Color fill_color = Theme.Colors.GetWidgetColor(GtkColorClass.Base, StateType.Normal);
fill_color.A = 0.5;
cairo_context.Color = fill_color;
cairo_context.Rectangle(area.X, area.Y, area.Width, area.Height);
cairo_context.Fill();
}
cairo_context.Save();
cairo_context.Translate(area.X, area.Y);
cell_context.Area = area;
cell_context.Sensitive = sensitive;
ISizeRequestCell sr_cell = cell as ISizeRequestCell;
if (sr_cell != null && sr_cell.RestrictSize)
{
int w, h;
sr_cell.GetSize(out w, out h);
column_cache [column_index].Column.MinWidth = w;
column_cache [column_index].Column.MaxWidth = w;
}
cell.Render(cell_context, dragging ? StateType.Normal : state, area.Width, area.Height, new CellPosition(column_index, row_index));
cairo_context.Restore();
}
public void CalculateWidths(Pango.Layout layout, bool headerVisible, int headerHeight)
{
bool min_was_zero = MinWidth == 0;
bool was_size_req = false;
ISizeRequestCell sr_cell = cells[0] as ISizeRequestCell;
if (sr_cell != null && sr_cell.RestrictSize)
{
int min_w, max_w;
sr_cell.GetWidthRange(layout, out min_w, out max_w);
MinWidth = min_w == -1 ? MinWidth : min_w;
MaxWidth = max_w == -1 ? MaxWidth : max_w;
was_size_req = true;
}
if (headerVisible && (min_was_zero || was_size_req) && !String.IsNullOrEmpty(Title))
{
int w, h;
layout.SetText(Title);
//column_layout.SetText ("\u2026"); // ellipsis char
layout.GetPixelSize(out w, out h);
// Pretty sure the 3* is needed here only b/c of the " - 8" in ColumnCellText;
// See TODO there
w += 3 * ColumnHeaderCellText.Spacing;
if (this is ISortableColumn)
{
w += ColumnHeaderCellText.GetArrowWidth(headerHeight);
}
MinWidth = Math.Max(MinWidth, w);
// If the min/max are sufficiently close (arbitrarily choosen as < 8px) then
// make them equal, so that the column doesn't appear resizable but in reality is on barely.
if (MaxWidth - MinWidth < 8)
{
MinWidth = MaxWidth;
}
}
}
