PageCanvasSize.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Print / Reach / PrintConfig / PageCanvasSize.cs / 1 / PageCanvasSize.cs
                        
                        
                            /*++ 

Copyright (C) 2003 Microsoft Corporation
All rights reserved.
 
Module Name:
 
    PageCanvasSize.cs 

Abstract: 

    Definition and implementation of this public property type.

Author: 

    [....] ([....]) 8/22/2003 
 
--*/
 
using System;
using System.IO;
using System.Xml;
using System.Collections; 
using System.Diagnostics;
 
using System.Printing; 
using MS.Internal.Printing.Configuration;
 
#pragma warning disable 1634, 1691 // Allows suppression of certain PreSharp messages

namespace MS.Internal.Printing.Configuration
{ 
    /// 
    /// Specifies the imageable area of the canvas. 
    ///  
    internal class CanvasImageableArea
    { 
        #region Constructors

        internal CanvasImageableArea(ImageableSizeCapability ownerProperty)
        { 
            this._ownerProperty = ownerProperty;
            _originWidth = _originHeight = _extentWidth = _extentHeight = PrintSchema.UnspecifiedIntValue; 
        } 

        #endregion Constructors 

        #region Public Properties

        ///  
        /// Specifies the horizontal origin of the imageable area relative to the application media size, in 1/96 inch unit.
        ///  
        public double OriginWidth 
        {
            get 
            {
                return UnitConverter.LengthValueFromMicronToDIP(_originWidth);
            }
        } 

        ///  
        /// Specifies the vertical origin of the imageable area relative to the application media size, in 1/96 inch unit. 
        /// 
        public double OriginHeight 
        {
            get
            {
                return UnitConverter.LengthValueFromMicronToDIP(_originHeight); 
            }
        } 
 
        /// 
        /// Specifies the horizontal distance between the origin and 
        /// the bounding limit of the application media size, in 1/96 inch unit.
        /// 
        public double ExtentWidth
        { 
            get
            { 
                return UnitConverter.LengthValueFromMicronToDIP(_extentWidth); 
            }
        } 

        /// 
        /// Specifies the vertical distance between the origin and
        /// the bounding limit of the application media size, in 1/96 inch unit. 
        /// 
        public double ExtentHeight 
        { 
            get
            { 
                return UnitConverter.LengthValueFromMicronToDIP(_extentHeight);
            }
        }
 
        #endregion Public Properties
 
        #region Public Methods 

        ///  
        /// Converts the imageable area to human-readable string.
        /// 
        /// A string that represents this imageable area.
        public override string ToString() 
        {
            return "[ImageableArea: Origin (" + OriginWidth + "," + OriginHeight + "), Extent (" + ExtentWidth + "x" + ExtentHeight + ")]"; 
        } 

        #endregion Public Methods 

        #region Internal Fields

        internal ImageableSizeCapability _ownerProperty; 

        // Integer values are always in micron unit 
        internal int _originWidth; 
        internal int _originHeight;
        internal int _extentWidth; 
        internal int _extentHeight;

        #endregion Internal Fields
    } 

    ///  
    /// Represents imageable size capability. 
    /// 
    internal class ImageableSizeCapability : PrintCapabilityRootProperty 
    {
        #region Constructors

        internal ImageableSizeCapability() : base() 
        {
            _imageableSizeWidth = _imageableSizeHeight = PrintSchema.UnspecifiedIntValue; 
        } 

        #endregion Constructors 

        #region Public Properties

        ///  
        /// Specifies the horizontal dimension of application media size relative to the PageOrientation, in 1/96 inch unit.
        ///  
        public double ImageableSizeWidth 
        {
            get 
            {
                return UnitConverter.LengthValueFromMicronToDIP(_imageableSizeWidth);
            }
        } 

        ///  
        /// Specifies the vertical dimension of the application media size relative to the PageOrientation, in 1/96 inch unit. 
        /// 
        public double ImageableSizeHeight 
        {
            get
            {
                return UnitConverter.LengthValueFromMicronToDIP(_imageableSizeHeight); 
            }
        } 
 
        /// 
        /// Specifies the imageable area of the canvas. 
        /// 
        public CanvasImageableArea ImageableArea
        {
            get 
            {
                return _imageableArea; 
            } 
        }
 
        #endregion Public Properties

        #region Public Methods
 
        /// 
        /// Converts the imageable size capability object to human-readable string. 
        ///  
        /// A string that represents this imageable size capability object.
        public override string ToString() 
        {
            return "ImageableSizeWidth=" + ImageableSizeWidth + ", ImageableSizeHeight=" + ImageableSizeHeight + " " +
                   ((ImageableArea != null) ? ImageableArea.ToString() : "[ImageableArea: null]");
        } 

        #endregion Public Methods 
 
        #region Internal Methods
 
        /// XML parser finds non-well-formness of XML
        internal override sealed bool BuildProperty(XmlPrintCapReader reader)
        {
            #if _DEBUG 
            Trace.Assert(reader.CurrentElementNodeType == PrintSchemaNodeTypes.Property,
                    "THIS SHOULD NOT HAPPEN: RootPropertyPropCallback gets non-Property node"); 
            #endif 

            int subPropDepth = reader.CurrentElementDepth + 1; 

            // Loops over immediate property children of the root-level property
            while (reader.MoveToNextSchemaElement(subPropDepth,
                                                  PrintSchemaNodeTypes.Property)) 
            {
                if (reader.CurrentElementNameAttrValue == PrintSchemaTags.Keywords.PageImageableSizeKeys.ImageableSizeWidth) 
                { 
                    try
                    { 
                        this._imageableSizeWidth = reader.GetCurrentPropertyIntValueWithException();
                    }
                    // We want to catch internal FormatException to skip recoverable XML content syntax error
                    #pragma warning suppress 56502 
                    #if _DEBUG
                    catch (FormatException e) 
                    #else 
                    catch (FormatException)
                    #endif 
                    {
                        #if _DEBUG
                        Trace.WriteLine("-Error- " + e.Message);
                        #endif 
                    }
                } 
                else if (reader.CurrentElementNameAttrValue == PrintSchemaTags.Keywords.PageImageableSizeKeys.ImageableSizeHeight) 
                {
                    try 
                    {
                        this._imageableSizeHeight = reader.GetCurrentPropertyIntValueWithException();
                    }
                    // We want to catch internal FormatException to skip recoverable XML content syntax error 
                    #pragma warning suppress 56502
                    #if _DEBUG 
                    catch (FormatException e) 
                    #else
                    catch (FormatException) 
                    #endif
                    {
                        #if _DEBUG
                        Trace.WriteLine("-Error- " + e.Message); 
                        #endif
                    } 
                } 
                else if (reader.CurrentElementNameAttrValue == PrintSchemaTags.Keywords.PageImageableSizeKeys.ImageableArea)
                { 
                    this._imageableArea = new CanvasImageableArea(this);

                    // When need to loop at a deeper depth, the code should cache the desired depth
                    // value and use the cached value in the while-loop. Using CurrentElementDepth 
                    // in while-loop won't work correctly since the CurrentElementDepth value is changing.
                    int iaPropDepth = reader.CurrentElementDepth + 1; 
 
                    // loop over one level down to read "ImageableArea" child-element properties
                    while (reader.MoveToNextSchemaElement(iaPropDepth, 
                                                          PrintSchemaNodeTypes.Property))
                    {
                        if (reader.CurrentElementNameAttrValue == PrintSchemaTags.Keywords.PageImageableSizeKeys.OriginWidth)
                        { 
                            try
                            { 
                                this._imageableArea._originWidth = reader.GetCurrentPropertyIntValueWithException(); 
                            }
                            // We want to catch internal FormatException to skip recoverable XML content syntax error 
                            #pragma warning suppress 56502
                            #if _DEBUG
                            catch (FormatException e)
                            #else 
                            catch (FormatException)
                            #endif 
                            { 
                                #if _DEBUG
                                Trace.WriteLine("-Error- " + e.Message); 
                                #endif
                            }
                        }
                        else if (reader.CurrentElementNameAttrValue == PrintSchemaTags.Keywords.PageImageableSizeKeys.OriginHeight) 
                        {
                            try 
                            { 
                                this._imageableArea._originHeight = reader.GetCurrentPropertyIntValueWithException();
                            } 
                            // We want to catch internal FormatException to skip recoverable XML content syntax error
                            #pragma warning suppress 56502
                            #if _DEBUG
                            catch (FormatException e) 
                            #else
                            catch (FormatException) 
                            #endif 
                            {
                                #if _DEBUG 
                                Trace.WriteLine("-Error- " + e.Message);
                                #endif
                            }
                        } 
                        else if (reader.CurrentElementNameAttrValue == PrintSchemaTags.Keywords.PageImageableSizeKeys.ExtentWidth)
                        { 
                            try 
                            {
                                this._imageableArea._extentWidth = reader.GetCurrentPropertyIntValueWithException(); 
                            }
                            // We want to catch internal FormatException to skip recoverable XML content syntax error
                            #pragma warning suppress 56502
                            #if _DEBUG 
                            catch (FormatException e)
                            #else 
                            catch (FormatException) 
                            #endif
                            { 
                                #if _DEBUG
                                Trace.WriteLine ("-Error- " + e.Message);
                                #endif
                            } 
                        }
                        else if (reader.CurrentElementNameAttrValue == PrintSchemaTags.Keywords.PageImageableSizeKeys.ExtentHeight) 
                        { 
                            try
                            { 
                                this._imageableArea._extentHeight = reader.GetCurrentPropertyIntValueWithException();
                            }
                            // We want to catch internal FormatException to skip recoverable XML content syntax error
                            #pragma warning suppress 56502 
                            #if _DEBUG
                            catch (FormatException e) 
                            #else 
                            catch (FormatException)
                            #endif 
                            {
                                #if _DEBUG
                                Trace.WriteLine ("-Error- " + e.Message);
                                #endif 
                            }
                        } 
                        else 
                        {
                            #if _DEBUG 
                            Trace.WriteLine("-Warning- skip unknown ImageableArea sub-property '" +
                                            reader.CurrentElementNameAttrValue + "' at line " +
                                            reader._xmlReader.LineNumber + ", position " +
                                            reader._xmlReader.LinePosition); 
                            #endif
                        } 
                    } 
                }
                else 
                {
                    #if _DEBUG
                    Trace.WriteLine("-Warning- skip unknown PageImageableSize sub-Property '" +
                                    reader.CurrentElementNameAttrValue + "' at line " + 
                                    reader._xmlReader.LineNumber + ", position " +
                                    reader._xmlReader.LinePosition); 
                    #endif 
                }
            } 

            bool isValid = false;

            // We require ImageableSizeWidth/Height and ExtentWidth/Height values must be non-negative 
            if ((this._imageableSizeWidth >= 0) &&
                (this._imageableSizeHeight >= 0)) 
            { 
                isValid = true;
 
                // If ImageableArea is present, then its ExtentWidth/Height values must be non-negative.
                if (this.ImageableArea != null)
                {
                    isValid = false; 

                    if ((this.ImageableArea._extentWidth >= 0) && 
                        (this.ImageableArea._extentHeight >= 0)) 
                    {
                        isValid = true; 
                    }
                }
            }
            else 
            {
                #if _DEBUG 
                Trace.WriteLine("-Error- invalid PageImageableSize size values: " + this.ToString()); 
                #endif
            } 

            return isValid;
        }
 
        #endregion Internal Methods
 
        #region Internal Fields 

        internal int _imageableSizeWidth; 
        internal int _imageableSizeHeight;
        internal CanvasImageableArea _imageableArea;

        #endregion Internal Fields 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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