From: glenlow <devnull@localhost>
Date: Tue, 1 Apr 2008 16:37:51 +0000 (+0000)
Subject: Win tweak panel for graph, default node and default edge attributes
X-Git-Tag: LAST_LIBGRAPH~32^2~4410
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5eb3ed285d4abab5c297de72bdefe5f8c85217d0;p=graphviz

Win tweak panel for graph, default node and default edge attributes
---

diff --git a/windows/FormController.cs b/windows/FormController.cs
new file mode 100755
index 000000000..a0c2fa279
--- /dev/null
+++ b/windows/FormController.cs
@@ -0,0 +1,169 @@
+/* $Id$ $Revision$ */
+/* vim:set shiftwidth=4 ts=8: */
+
+/**********************************************************
+*      This software is part of the graphviz package      *
+*                http://www.graphviz.org/                 *
+*                                                         *
+*            Copyright (c) 1994-2008 AT&T Corp.           *
+*                and is licensed under the                *
+*            Common Public License, Version 1.0           *
+*                      by AT&T Corp.                      *
+*                                                         *
+*        Information and Software Systems Research        *
+*              AT&T Research, Florham Park NJ             *
+**********************************************************/
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Windows.Forms;
+
+namespace Graphviz
+{
+	public class FormController
+	{
+		/* document forms need to declare these menus */
+		public interface IMenus
+		{
+			ToolStripMenuItem ExitMenuItem
+			{
+				get;
+			}
+
+			ToolStripMenuItem OpenMenuItem
+			{
+				get;
+			}
+
+			ToolStripMenuItem ShowAttributesMenuItem
+			{
+				get;
+			}
+
+			ToolStripMenuItem WindowMenuItem
+			{
+				get;
+			}
+		}
+		
+		public static FormController Instance
+		{
+			get { return _instance; }
+		}
+		
+		public Form MainForm
+		{
+			/* return the topmost document form */
+			get { return _mainForm; }
+		}
+
+		public event EventHandler MainFormChanged;
+
+		public string[] FilesToOpen()
+		{
+			/* if user said OK, return the files he selected */
+			return _openFileDialog.ShowDialog() == DialogResult.OK ? _openFileDialog.FileNames : null;
+		}
+
+		public Form OpenFiles(ICollection<string> fileNames)
+		{
+			Form foundForm = null;
+			foreach (string fileName in fileNames) {
+				string canonicalPath = Path.GetFullPath(fileName).ToLower();
+				if (_documentForms.ContainsKey(canonicalPath))
+					/* document already open */
+					foundForm = _documentForms[canonicalPath];
+				else {
+					/* document needs to be created */
+					_documentForms[canonicalPath] = foundForm = CreateForm(fileName);
+
+					IMenus documentFormMenus = foundForm as IMenus;
+					if (documentFormMenus != null) {
+						/* exit menu quits the app */
+						documentFormMenus.ExitMenuItem.Click += delegate(object sender, EventArgs eventArgs)
+						{
+							Application.Exit();
+						};
+
+						/* open menu asks user which files to open and then opens them */
+						documentFormMenus.OpenMenuItem.Click += delegate(object sender, EventArgs eventArgs)
+						{
+							string[] filesToOpen = FilesToOpen();
+							if (filesToOpen != null)
+								OpenFiles(filesToOpen);
+						};
+
+						/* attribute menu shows the attribute inspector */
+						documentFormMenus.ShowAttributesMenuItem.Click += delegate(object sender, EventArgs eventArgs)
+						{
+							AttributeInspectorForm.Instance.Show();
+						};
+
+						/* window menu shows a list of all forms, select one to activate it */
+						documentFormMenus.WindowMenuItem.DropDownOpening += delegate(object sender, EventArgs eventArgs)
+						{
+							ToolStripMenuItem windowMenuItem = sender as ToolStripMenuItem;
+							if (windowMenuItem != null)
+							{
+								windowMenuItem.DropDownItems.Clear();
+								int i = 0;
+								foreach (Form form in Application.OpenForms)
+								{
+									Form innerForm = form;
+									ToolStripMenuItem formMenuItem = new ToolStripMenuItem(string.Format("{0} {1}", ++i, form.Text));
+									formMenuItem.Checked = Form.ActiveForm == innerForm;
+									formMenuItem.Click += delegate(object innerSender, EventArgs innerEventArgs)
+									{
+										innerForm.Activate();
+									};
+									windowMenuItem.DropDownItems.Add(formMenuItem);
+								}
+							}
+						};
+					}
+
+					/* when form activated, change the main form */
+					foundForm.Activated += delegate(object sender, EventArgs eventArgs)
+					{
+						_mainForm = (Form)sender;
+						if (MainFormChanged != null)
+							MainFormChanged(_mainForm, EventArgs.Empty);
+					};
+
+					/* when form closed, remove it from our list */
+					foundForm.FormClosed += delegate(object sender, FormClosedEventArgs e)
+					{
+						_documentForms.Remove(canonicalPath);
+					};
+
+					/* window title is the filename portion */
+					foundForm.Text = Path.GetFileName(fileName);
+					
+					foundForm.Show();
+				}
+			}
+			return foundForm;
+		}
+		
+		private FormController()
+		{
+			_openFileDialog = new OpenFileDialog();
+			_openFileDialog.Filter = "Graphviz graphs (*.dot)|*.dot|All files (*.*)|*.*";
+			_openFileDialog.Multiselect = true;
+			
+			_documentForms = new Dictionary<string, Form>();
+			_mainForm = null;
+		}
+
+		private Form CreateForm(string fileName)
+		{
+			return new GraphForm(fileName);
+		}
+
+		private static FormController _instance = new FormController();
+		private readonly OpenFileDialog _openFileDialog;
+		private readonly Dictionary<string, Form> _documentForms;
+		private Form _mainForm;
+	}
+}