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112 lines
3.9 KiB
C#
112 lines
3.9 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2013 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Windows.Forms;
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namespace Greenshot.Helpers
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{
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/// <summary>
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/// Enables or disables toolstrip items, taking care of the hierarchy.
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/// (parent) OwnerItems are ENabled with ToolStripItems,
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/// (child) DropDownItems are ENabled and DISabled with ToolStripItems.
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/// </summary>
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public static class ToolStripItemEndisabler
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{
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[Flags]
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private enum PropagationMode { NONE = 0, CHILDREN = 1, ANCESTORS = 2 };
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/// <summary>
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/// Enables all of a ToolStrip's children (recursively),
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/// but not the ToolStrip itself
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/// </summary>
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public static void Enable(ToolStrip ts)
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{
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Endisable(ts, true, PropagationMode.CHILDREN);
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}
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/// <summary>
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/// Disables all of a ToolStrip's children (recursively),
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/// but not the ToolStrip itself
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/// </summary>
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public static void Disable(ToolStrip ts)
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{
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Endisable(ts, false, PropagationMode.CHILDREN);
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}
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/// <summary>
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/// Enables the ToolStripItem, including children (ToolStripDropDownItem)
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/// and ancestor (OwnerItem)
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/// </summary>
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public static void Enable(ToolStripItem tsi)
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{
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Endisable(tsi, true, PropagationMode.CHILDREN | PropagationMode.ANCESTORS);
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}
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/// <summary>
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/// Disables the ToolStripItem, including children (ToolStripDropDownItem),
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/// but NOT the ancestor (OwnerItem)
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/// </summary>
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public static void Disable(ToolStripItem tsi)
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{
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Endisable(tsi, false, PropagationMode.CHILDREN);
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}
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private static void Endisable(ToolStrip ts, bool enable, PropagationMode mode)
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{
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if ((mode & PropagationMode.CHILDREN) == PropagationMode.CHILDREN)
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{
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foreach (ToolStripItem tsi in ts.Items)
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{
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Endisable(tsi, enable, PropagationMode.CHILDREN);
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}
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}
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}
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private static void Endisable(ToolStripItem tsi, bool enable, PropagationMode mode)
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{
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if (tsi is ToolStripDropDownItem)
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{
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Endisable(tsi as ToolStripDropDownItem, enable, mode);
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}
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else
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{
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tsi.Enabled = enable;
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}
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if ((mode & PropagationMode.ANCESTORS) == PropagationMode.ANCESTORS)
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{
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if (tsi.OwnerItem != null) Endisable(tsi.OwnerItem, enable, PropagationMode.ANCESTORS);
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}
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}
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private static void Endisable(ToolStripDropDownItem tsddi, bool enable, PropagationMode mode)
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{
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if ((mode & PropagationMode.CHILDREN) == PropagationMode.CHILDREN)
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{
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foreach (ToolStripItem tsi in tsddi.DropDownItems)
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{
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Endisable(tsi, enable, PropagationMode.CHILDREN);
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}
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}
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tsddi.Enabled = enable;
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}
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}
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} |