// OpenTween - Client of Twitter
// Copyright (c) 2014 kim_upsilon (@kim_upsilon)
// All rights reserved.
//
// This file is part of OpenTween.
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see , or write to
// the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
// Boston, MA 02110-1301, USA.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;
namespace OpenTween
{
///
/// WinformsコントロールのBegin/EndUpdate等のメソッドをusingブロックによって呼び出すためのクラス
///
public static class ControlTransaction
{
public static IDisposable Update(ListView control)
{
return new Transaction(control, x => x.BeginUpdate(), x => x.EndUpdate());
}
public static IDisposable Update(ListBox control)
{
return new Transaction(control, x => x.BeginUpdate(), x => x.EndUpdate());
}
public static IDisposable Update(ComboBox control)
{
return new Transaction(control, x => x.BeginUpdate(), x => x.EndUpdate());
}
public static IDisposable Update(TreeView control)
{
return new Transaction(control, x => x.BeginUpdate(), x => x.EndUpdate());
}
public static IDisposable Update(Control control)
{
// Begin/EndUpdate メソッドを持たないコントロールに対しては、
// WM_SETREDRAW メッセージを直接コントロールに送信する。
return new Transaction(control,
x => NativeMethods.SetRedrawState(x, false),
x => { NativeMethods.SetRedrawState(x, true); x.Invalidate(true); });
}
public static IDisposable Layout(Control control)
{
return Layout(control, performLayout: true);
}
public static IDisposable Layout(Control control, bool performLayout)
{
return new Transaction(control, x => x.SuspendLayout(), x => x.ResumeLayout(performLayout));
}
public static IDisposable Init(ISupportInitialize control)
{
return new Transaction(control, x => x.BeginInit(), x => x.EndInit());
}
public static IDisposable Cursor(Control control, Cursor newCursor)
{
var oldCursor = control.Cursor;
return new Transaction(control, x => x.Cursor = newCursor, x => x.Cursor = oldCursor);
}
public static IDisposable Enabled(Control control)
{
var oldState = control.Enabled;
return new Transaction(control, x => x.Enabled = true, x => x.Enabled = oldState);
}
public static IDisposable Disabled(Control control)
{
var oldState = control.Enabled;
return new Transaction(control, x => x.Enabled = false, x => x.Enabled = oldState);
}
private class Transaction : IDisposable
{
private readonly T control;
private readonly Action beginTransaction;
private readonly Action endTransaction;
internal Transaction(T control, Action beginTrans, Action endTrans)
{
this.control = control;
this.beginTransaction = beginTrans;
this.endTransaction = endTrans;
this.beginTransaction(this.control);
}
public void Dispose()
{
this.endTransaction(this.control);
}
}
}
}