// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// System.Drawing.PrintDocument.cs
//
// Authors:
//   Dennis Hayes (dennish@Raytek.com)
//   Herve Poussineau (hpoussineau@fr.st)
//   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
//
// (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.ComponentModel;

namespace System.Drawing.Printing
{
#if !NETCORE
    [DefaultEvent ("PrintPage"), DefaultProperty ("DocumentName")]
    [ToolboxItemFilter ("System.Drawing.Printing", ToolboxItemFilterType.Allow)]
#endif
    public class PrintDocument : System.ComponentModel.Component
    {
        private PageSettings defaultpagesettings;
        private PrinterSettings printersettings;
        private PrintController printcontroller;
        private string documentname;
        private bool originAtMargins = false; // .NET V1.1 Beta

        public PrintDocument()
        {
            documentname = "document"; //offical default.
            printersettings = new PrinterSettings(); // use default values
            defaultpagesettings = (PageSettings)printersettings.DefaultPageSettings.Clone();
            printcontroller = new StandardPrintController();
        }

        // properties
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        [Browsable(false)]
        [SRDescription("The settings for the current page.")]
        public PageSettings DefaultPageSettings
        {
            get
            {
                return defaultpagesettings;
            }
            set
            {
                defaultpagesettings = value;
            }
        }

        // Name of the document, not the file!
        [DefaultValue("document")]
        [SRDescription("The name of the document.")]
        public string DocumentName
        {
            get
            {
                return documentname;
            }
            set
            {
                documentname = value;
            }
        }

        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        [Browsable(false)]
        [SRDescription("The print controller object.")]
        public PrintController PrintController
        {
            get
            {
                return printcontroller;
            }
            set
            {
                printcontroller = value;
            }
        }

        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        [Browsable(false)]
        [SRDescription("The current settings for the active printer.")]
        public PrinterSettings PrinterSettings
        {
            get
            {
                return printersettings;
            }
            set
            {
                printersettings = value == null ? new PrinterSettings() : value;
            }
        }

        [DefaultValue(false)]
        [SRDescription("Determines if the origin is set at the specified margins.")]
        public bool OriginAtMargins
        {
            get
            {
                return originAtMargins;
            }
            set
            {
                originAtMargins = value;
            }
        }

        // methods
        public void Print()
        {
            PrintEventArgs printArgs = new PrintEventArgs();
            this.OnBeginPrint(printArgs);
            if (printArgs.Cancel)
                return;
            PrintController.OnStartPrint(this, printArgs);
            if (printArgs.Cancel)
                return;

            Graphics g = null;

            if (printArgs.GraphicsContext != null)
            {
                g = Graphics.FromHdc(printArgs.GraphicsContext.Hdc);
                printArgs.GraphicsContext.Graphics = g;
            }

            // while there are more pages
            PrintPageEventArgs printPageArgs;
            do
            {
                QueryPageSettingsEventArgs queryPageSettingsArgs = new QueryPageSettingsEventArgs(
                        DefaultPageSettings.Clone() as PageSettings);
                OnQueryPageSettings(queryPageSettingsArgs);

                PageSettings pageSettings = queryPageSettingsArgs.PageSettings;
                printPageArgs = new PrintPageEventArgs(
                        g,
                        pageSettings.Bounds,
                        new Rectangle(0, 0, pageSettings.PaperSize.Width, pageSettings.PaperSize.Height),
                        pageSettings);

                // TODO: We should create a graphics context for each page since they can have diferent paper
                // size, orientation, etc. We use a single graphic for now to keep Cairo using a single PDF file.

                printPageArgs.GraphicsContext = printArgs.GraphicsContext;
                Graphics pg = PrintController.OnStartPage(this, printPageArgs);

                // assign Graphics in printPageArgs
                printPageArgs.SetGraphics(pg);

                if (!printPageArgs.Cancel)
                    this.OnPrintPage(printPageArgs);

                PrintController.OnEndPage(this, printPageArgs);
                if (printPageArgs.Cancel)
                    break;
            } while (printPageArgs.HasMorePages);

            this.OnEndPrint(printArgs);
            PrintController.OnEndPrint(this, printArgs);
        }

        public override string ToString()
        {
            return "[PrintDocument " + this.DocumentName + "]";
        }

        // events
        protected virtual void OnBeginPrint(PrintEventArgs e)
        {
            //fire the event
            if (BeginPrint != null)
                BeginPrint(this, e);
        }

        protected virtual void OnEndPrint(PrintEventArgs e)
        {
            //fire the event
            if (EndPrint != null)
                EndPrint(this, e);
        }

        protected virtual void OnPrintPage(PrintPageEventArgs e)
        {
            //fire the event
            if (PrintPage != null)
                PrintPage(this, e);
        }

        protected virtual void OnQueryPageSettings(QueryPageSettingsEventArgs e)
        {
            //fire the event
            if (QueryPageSettings != null)
                QueryPageSettings(this, e);
        }

        [SRDescription("Raised when printing begins")]
        public event PrintEventHandler BeginPrint;

        [SRDescription("Raised when printing ends")]
        public event PrintEventHandler EndPrint;

        [SRDescription("Raised when printing of a new page begins")]
        public event PrintPageEventHandler PrintPage;

        [SRDescription("Raised before printing of a new page begins")]
        public event QueryPageSettingsEventHandler QueryPageSettings;
    }
}
