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// ColumnHeaderCellText.cs
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// Aaron Bockover <abockover@novell.com>
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// Copyright (C) 2007 Novell, Inc.
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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using Hyena.Data.Gui.Accessibility;
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namespace Hyena.Data.Gui
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public class ColumnHeaderCellText : ColumnCellText, IHeaderCell
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public delegate Column DataHandler ();
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private DataHandler data_handler;
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private bool has_sort;
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public ColumnHeaderCellText (DataHandler data_handler) : base (null, true)
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this.data_handler = data_handler;
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public override Atk.Object GetAccessible (ICellAccessibleParent parent)
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return new ColumnHeaderCellTextAccessible (BoundObject, this, parent);
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public override void Render (CellContext context, StateType state, double cellWidth, double cellHeight)
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if (data_handler == null) {
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base.Render (context, state, cellWidth, cellHeight);
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Gdk.Rectangle arrow_alloc = new Gdk.Rectangle ();
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arrow_alloc.Width = (int)(cellHeight / 3.0);
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arrow_alloc.Height = (int)((double)arrow_alloc.Width / 1.6);
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arrow_alloc.X = (int)cellWidth - arrow_alloc.Width - Spacing;
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arrow_alloc.Y = ((int)cellHeight - arrow_alloc.Height) / 2;
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double textWidth = arrow_alloc.X - Spacing;
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base.Render (context, state, textWidth, cellHeight);
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SortType sort_type = ((ISortableColumn)data_handler ()).SortType;
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if (sort_type != SortType.None) {
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context.Theme.DrawArrow (context.Context, arrow_alloc, sort_type);
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protected override string GetText (object obj)
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return data_handler ().Title;
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get { return has_sort; }
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set { has_sort = value; }
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public static int GetArrowWidth (int headerHeight)
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return (int)(headerHeight / 3.0) + Spacing;