mono/mcs/class/System.Drawing/System.Drawing.Printing/PreviewPrintController.cs

//
// System.Drawing.PreviewPrintController.cs
//
// Author:
//   Dennis Hayes ([email protected])
//
// (C) 2002 Ximian, Inc
//

//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Collections;
using System.Drawing.Imaging;

namespace System.Drawing.Printing
{
	public class PreviewPrintController : PrintController
	{
		bool useantialias;
		ArrayList pageInfoList;

		public PreviewPrintController()
		{
			useantialias = false;
			pageInfoList = new ArrayList ();
		}
#if NET_2_0
		public virtual bool IsPreview { 
			get { return true; }
		}
#endif		

		[MonoTODO]
		public override void OnEndPage(PrintDocument document, PrintPageEventArgs e)
		{
		}

		[MonoTODO]
		public override void OnStartPrint(PrintDocument document, PrintEventArgs e)
		{
			/* maybe we should reuse the images, and clear them? */
			foreach (PreviewPageInfo pi in pageInfoList)
				pi.Image.Dispose ();

			pageInfoList.Clear ();
		}

		[MonoTODO]
		public override void OnEndPrint(PrintDocument document, PrintEventArgs e)
		{
		}

		[MonoTODO]
		public override Graphics OnStartPage(PrintDocument document, PrintPageEventArgs e)
		{
			Image image = new Bitmap (e.PageSettings.PaperSize.Width * e.PageSettings.PrinterResolution.X / 100,
						  e.PageSettings.PaperSize.Height * e.PageSettings.PrinterResolution.Y / 100);

			PreviewPageInfo info = new PreviewPageInfo (image, new Size (e.PageSettings.PaperSize.Width,
										     e.PageSettings.PaperSize.Height));
			
			pageInfoList.Add (info);

			Graphics g = Graphics.FromImage (info.Image);
			g.FillRectangle (new SolidBrush (Color.White), new Rectangle (new Point (0,0), new Size (image.Width, image.Height)));

			g.ScaleTransform (e.PageSettings.PrinterResolution.X / 100.0f, e.PageSettings.PrinterResolution.Y / 100.0f);

			return g;
		}
		
		public virtual bool UseAntiAlias {
			get{ return useantialias; }
			set{ useantialias = value; }
		}

		public PreviewPageInfo [] GetPreviewPageInfo()
		{
			PreviewPageInfo [] pi = new PreviewPageInfo[pageInfoList.Count];
			pageInfoList.CopyTo (pi);
			return pi;
		}

	}
}