MonthAtAGlance.3.1.cs from p4shelf at Krugle
Show MonthAtAGlance.3.1.cs syntax highlighted
/* **********************************************************************************
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
* This source code is subject to terms and conditions of the Shared Source License
* for IronPython. A copy of the license can be found in the License.html file
* at the root of this distribution. If you can not locate the Shared Source License
* for IronPython, please send an email to ironpy@microsoft.com.
* By using this source code in any fashion, you are agreeing to be bound by
* the terms of the Shared Source License for IronPython.
*
* You must not remove this notice, or any other, from this software.
*
* **********************************************************************************/
using IronPython.Hosting;
using IronPython.Compiler;
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
namespace HostingApp {
public partial class MonthAtAGlance : Form {
// Application variables
private Dictionary<System.DateTime, string> dateEntries;
private System.DateTime lastDate;
private PythonEngine engine;
public MonthAtAGlance() {
InitializeComponent();
InitializeApp();
InitializePythonEngine();
}
void InitializePythonEngine() {
engine = new PythonEngine();
engine.Import("site");
engine.Globals["dateentries"] = dateEntries;
try {
engine.Execute("print 'Hello world!'");
} catch (IronPython.Runtime.Exceptions.PythonNameErrorException exc) {
MessageBox.Show("IronPython engine complained: " + exc.Message);
} catch (Exception exc) {
MessageBox.Show("Unexpected exception " + exc.ToString() + "\n Shutting down!");
System.Environment.Exit(-1);
}
}
public delegate void DateTextChangedEventHandler(DateTime day, string newText);
public event DateTextChangedEventHandler EntryChangedHandler;
private void defaultEvtHandler(DateTime day, string nt) {
}
private void InitializeApp() {
dateEntries = new Dictionary<DateTime, string>();
lastDate = monthCalendar.TodayDate;
EntryChangedHandler = new DateTextChangedEventHandler(defaultEvtHandler);
}
private bool dateSubmitEvent(DateTime dt, string txt) {
string oldDateText; // current text in the date we are leaving
// if txt != this, place txt in the date we are leaving
string newDateText; // current text in the date we are entering
// to be moved to textBox
bool wasUpdate = true;
if (!dateEntries.TryGetValue(dt, out newDateText))
newDateText = "";
textBox.Text = newDateText;
if (!dateEntries.TryGetValue(lastDate, out oldDateText))
oldDateText = "";
if (oldDateText == txt)
wasUpdate = false;
else {
if (dateEntries.ContainsKey(lastDate))
dateEntries.Remove(lastDate);
if (txt != "")
dateEntries.Add(lastDate, txt);
else
wasUpdate = false;
}
lastDate = dt;
return wasUpdate;
}
private void monthCalendar_DateChanged(object sender, DateRangeEventArgs e) {
DateTime changedTo = e.End;
string currText = textBox.Text;
if (dateSubmitEvent(changedTo, currText) &&
EntryChangedHandler != null)
EntryChangedHandler(changedTo, currText);
engine.Execute("n = dateentries.Count");
int nEntries = engine.EvaluateAs<int>("n");
label.Text = "There are now " + nEntries.ToString() + " entries in the dictionary.";
}
}
}
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