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Viewing changes to Pinta.Core/Managers/ToolManager.cs

  • Committer: Iain Lane
  • Date: 2010-02-19 15:33:30 UTC
  • Revision ID: git-v1:92cc09614a4e2801bfe39cd971f6b31e694a500b
Imported Upstream version 0.3

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Pinta.Core/Managers/ToolManager.cs
 
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// 
 
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// ToolManager.cs
 
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//  
 
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// Author:
 
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//       Jonathan Pobst <monkey@jpobst.com>
 
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// 
 
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// Copyright (c) 2010 Jonathan Pobst
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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using System.Collections.Generic;
 
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using Gtk;
 
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namespace Pinta.Core
 
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{
 
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        public class ToolManager : IEnumerable<BaseTool>
 
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        {
 
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                int index = -1;
 
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                int prev_index = -1;
 
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                private List<BaseTool> Tools;
 
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                public ToolManager ()
 
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                {
 
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                        Tools = new List<BaseTool> ();
 
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                }
 
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                public void AddTool (BaseTool tool)
 
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                {
 
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                        tool.ToolItem.Clicked += HandlePbToolItemClicked;
 
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                        tool.ToolItem.Sensitive = tool.Enabled;
 
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                        Tools.Add (tool);       
 
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                }
 
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                void HandlePbToolItemClicked (object sender, EventArgs e)
 
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                {
 
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                        ToggleToolButton tb = (ToggleToolButton)sender;
 
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                        BaseTool t = FindTool (tb.Label);
 
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                        // Don't let the user unselect the current tool 
 
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                        if (t.Name == CurrentTool.Name) {
 
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                                //tb.Active = true;
 
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                                //return;
 
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                        }
 
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                        SetCurrentTool (t);
 
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                }
 
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                private BaseTool FindTool (string name)
 
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                {
 
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                        name = name.ToLowerInvariant ();
 
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                        foreach (BaseTool tool in Tools) {
 
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                                if (tool.Name.ToLowerInvariant () == name) {
 
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                                        return tool;
 
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                                }
 
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                        }
 
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                        return null;
 
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                }
 
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                public BaseTool CurrentTool {
 
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                        get { return Tools[index]; }
 
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                }
 
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                public BaseTool PreviousTool {
 
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                        get { return Tools[prev_index]; }
 
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                }
 
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                public void SetCurrentTool (BaseTool tool)
 
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                {
 
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                        int i = Tools.IndexOf (tool);
 
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                        if (index == i)
 
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                                return;
 
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                        // Unload previous tool if needed
 
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                        if (index >= 0) {
 
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                                Tools[index].DoClearToolBar (PintaCore.Chrome.ToolToolBar);
 
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                                Tools[index].DoDeactivated ();
 
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                                Tools[index].ToolItem.Active = false;
 
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                                prev_index = index;
 
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                        }
 
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                        // Load new tool
 
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                        index = i;
 
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                        tool.DoBuildToolBar (PintaCore.Chrome.ToolToolBar);
 
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                        tool.ToolItem.Active = true;
 
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                        PintaCore.Workspace.Invalidate ();
 
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                        PintaCore.Chrome.SetStatusBarText (string.Format (" {0}: {1}", tool.Name, tool.StatusBarText));
 
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                }
 
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                public void SetCurrentTool (string tool)
 
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                {
 
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                        BaseTool t = FindTool (tool);
 
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                        if (t != null)
 
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                                SetCurrentTool (t);
 
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                }
 
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                #region IEnumerable<BaseTool> implementation
 
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                public IEnumerator<BaseTool> GetEnumerator ()
 
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                {
 
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                        return Tools.GetEnumerator ();
 
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                }
 
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                #endregion
 
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                #region IEnumerable implementation
 
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                System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator ()
 
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                {
 
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                        return Tools.GetEnumerator ();
 
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                }
 
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                #endregion
 
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        }
 
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}