484 lines
17 KiB
VB.net
484 lines
17 KiB
VB.net
Imports System.ComponentModel
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Imports System.Globalization
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Imports System.Text.RegularExpressions
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Imports DigitalData.Modules.Logging
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Imports Independentsoft.Msg
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Imports DevExpress.Spreadsheet
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Imports GdPicture14
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Imports DevExpress
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Imports DevExpress.Office.Utils
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Imports System.IO
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Public Class DocumentViewer
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Private Enum ZoomMode
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Zoom50
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Zoom100
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Zoom150
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Zoom200
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ZoomSelectedArea
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ZoomFitToViewer
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ZoomFitWidth
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ZoomFitHeight
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End Enum
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Private _currentSearchOccurence As Integer = 0
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Private _toggleGamma As Boolean = True
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Private _licenseKey As String = String.Empty
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Private _licenseManager As New GdPicture14.LicenseManager()
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Private _logConfig As LogConfig
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Private _logger As Logger
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Private _hide_file_info_from_user As Boolean = False
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Private _FilePath As String
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Private _Fileinfo As FileInfo
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' List of all created temp files when converting msg files
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Private _TempFiles As New List(Of String)
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Private Sub DocumentViewer_Load(sender As Object, e As EventArgs) Handles Me.Load
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_TempFiles.Clear()
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UpdateMainUi()
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End Sub
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Public Property FileLoaded As Boolean = False
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''' <summary>
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''' Initialize the Viewer
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''' </summary>
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''' <param name="LogConfig">A LogConfig object</param>
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''' <param name="LicenseKey">The GDPicture.NET License Key</param>
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Public Sub Init(LogConfig As LogConfig, LicenseKey As String)
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_logConfig = LogConfig
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_logger = LogConfig.GetLogger()
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_licenseKey = LicenseKey
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_licenseManager.RegisterKEY(_licenseKey)
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End Sub
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''' <summary>
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''' Terminate Viewer, freeing up resources and deleting temp files
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''' </summary>
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Public Sub Done()
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DeleteTempFiles()
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FreeFile()
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End Sub
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''' <summary>
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''' Load a file and display it
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''' </summary>
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''' <param name="FilePath"></param>
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Public Sub LoadFile(FilePath As String)
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FileLoaded = False
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If _licenseKey = String.Empty Then
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_logger.Warn("License key was not provided. File {0} not loaded.", FilePath)
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Exit Sub
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End If
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_logger.Info("Loading File {0}", FilePath)
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Dim oFileLoaded = DoLoadFile(FilePath)
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_FilePath = FilePath
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_Fileinfo = New FileInfo(FilePath)
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If oFileLoaded = True Then
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FileLoaded = True
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End If
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UpdateMainUi()
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End Sub
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Public Sub LoadFile(FileName As String, Stream As Stream)
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FileLoaded = False
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If _licenseKey = String.Empty Then
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_logger.Warn("License key was not provided. File [{0}] not loaded.", FileName)
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Exit Sub
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End If
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Dim oExtension As String = FileName.Substring(FileName.LastIndexOf("."))
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_logger.Info("Loading File [{0}]", FileName)
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Dim ofileloaded = DoLoadFile(Stream, oExtension)
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If oFileLoaded = True Then
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FileLoaded = True
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End If
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UpdateMainUi()
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End Sub
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Public Sub CloseDocument()
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GdViewer.CloseDocument()
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UpdateMainUi()
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End Sub
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Public Sub DeleteTempFiles()
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For Each oFile In _TempFiles
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Try
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IO.File.Delete(oFile)
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Catch ex As Exception
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_logger.Warn("Could not delete temp file {0}", oFile)
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End Try
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Next
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_TempFiles.Clear()
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End Sub
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Private Sub FreeFile()
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Try
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If Len(_FilePath) OrElse _Fileinfo Is Nothing Then
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Exit Sub
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End If
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Dim oExtension As String = _Fileinfo.Extension.ToUpper
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Select Case oExtension.ToUpper
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Case ".MSG"
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RichEditControl1.CreateNewDocument()
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Case ".EML", ".DOC", ".DOCX", ".ODT", ".RTF", ".TXT"
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RichEditControl1.CreateNewDocument()
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Case ".XLSX", ".XLS", "CSV"
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SpreadsheetControl1.CreateNewDocument()
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Case Else
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GdViewer.CloseDocument()
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End Select
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Catch ex As Exception
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_logger.Warn($"Unexpected error in FreeFile: {ex.Message}")
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End Try
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End Sub
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Private Function DoLoadFile(FilePath As String) As Boolean
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Try
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Dim oFileInfo = New IO.FileInfo(FilePath)
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Dim oExtension As String = oFileInfo.Extension.ToUpper
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RichEditControl1.Visible = False
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RichEditControl1.Dock = DockStyle.None
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SpreadsheetControl1.Visible = False
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SpreadsheetControl1.Dock = DockStyle.None
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ToolbarDocumentViewer.Visible = False
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Select Case oExtension.ToUpper
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Case ".MSG"
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Dim oMsg As New Message(FilePath)
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' TODO: Improve Encoding, maybe convert based on encoding
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oMsg.Encoding = System.Text.Encoding.UTF32
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Dim oMime = oMsg.ConvertToMimeMessage()
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Dim oTempFileName = IO.Path.GetTempFileName()
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oMime.Save(oTempFileName, True)
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RichEditControl1.LoadDocument(oTempFileName, XtraRichEdit.DocumentFormat.Mht)
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_TempFiles.Add(oTempFileName)
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RichEditControl1.Visible = True
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RichEditControl1.Dock = DockStyle.Fill
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Case ".EML", ".DOC", ".DOCX", ".ODT", ".RTF", ".TXT"
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RichEditControl1.LoadDocument(FilePath, GetDocumentFormat(oExtension))
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RichEditControl1.Visible = True
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RichEditControl1.Dock = DockStyle.Fill
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Case ".XLSX", ".XLS", "CSV"
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SpreadsheetControl1.LoadDocument(FilePath, GetSpreadsheetFormat(oExtension))
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Dim oRange = SpreadsheetControl1.ActiveWorksheet.GetUsedRange()
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oRange.AutoFitColumns()
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SpreadsheetControl1.Visible = True
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SpreadsheetControl1.Dock = DockStyle.Fill
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Case Else
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ToolbarDocumentViewer.Visible = True
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GdViewer.ZoomMode = ViewerZoomMode.ZoomModeWidthViewer
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GdViewer.DocumentAlignment = ViewerDocumentAlignment.DocumentAlignmentTopCenter
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GdViewer.DisplayFromFile(FilePath)
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End Select
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UpdateMainUi()
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Return True
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Catch ex As Exception
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_logger.Error(ex)
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Return False
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End Try
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End Function
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Private Function DoLoadFile(Stream As Stream, Extension As String) As Boolean
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Try
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RichEditControl1.Visible = False
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RichEditControl1.Dock = DockStyle.None
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SpreadsheetControl1.Visible = False
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SpreadsheetControl1.Dock = DockStyle.None
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ToolbarDocumentViewer.Visible = False
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Select Case Extension.ToUpper
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Case ".MSG"
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Dim oMsg As New Message(Stream)
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' TODO: Improve Encoding, maybe convert based on encoding
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oMsg.Encoding = System.Text.Encoding.UTF32
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Dim oMime = oMsg.ConvertToMimeMessage()
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Dim oTempFileName = IO.Path.GetTempFileName()
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oMime.Save(oTempFileName, True)
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RichEditControl1.LoadDocument(oTempFileName, XtraRichEdit.DocumentFormat.Mht)
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_TempFiles.Add(oTempFileName)
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RichEditControl1.Visible = True
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RichEditControl1.Dock = DockStyle.Fill
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Case ".EML", ".DOC", ".DOCX", ".ODT", ".RTF", ".TXT"
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RichEditControl1.LoadDocument(Stream, GetDocumentFormat(Extension))
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RichEditControl1.Visible = True
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RichEditControl1.Dock = DockStyle.Fill
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Case ".XLSX", ".XLS", "CSV"
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SpreadsheetControl1.LoadDocument(Stream, GetSpreadsheetFormat(Extension))
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Dim oRange = SpreadsheetControl1.ActiveWorksheet.GetUsedRange()
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oRange.AutoFitColumns()
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SpreadsheetControl1.Visible = True
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SpreadsheetControl1.Dock = DockStyle.Fill
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Case Else
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ToolbarDocumentViewer.Visible = True
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GdViewer.ZoomMode = ViewerZoomMode.ZoomModeWidthViewer
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GdViewer.DocumentAlignment = ViewerDocumentAlignment.DocumentAlignmentTopCenter
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GdViewer.DisplayFromStream(Stream)
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End Select
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UpdateMainUi()
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Return True
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Catch ex As Exception
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_logger.Error(ex)
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Return False
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End Try
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End Function
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Private Function GetSpreadsheetFormat(Extension) As Spreadsheet.DocumentFormat
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Dim oFormat As Spreadsheet.DocumentFormat = Spreadsheet.DocumentFormat.Undefined
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Select Case Extension.ToUpper
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Case "XLSX" : oFormat = Spreadsheet.DocumentFormat.Xlsx
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Case "XLS" : oFormat = Spreadsheet.DocumentFormat.Xls
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Case "CSV" : oFormat = Spreadsheet.DocumentFormat.Csv
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End Select
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Return oFormat
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End Function
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Private Function GetDocumentFormat(Extension) As XtraRichEdit.DocumentFormat
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Dim oFormat As XtraRichEdit.DocumentFormat = XtraRichEdit.DocumentFormat.Undefined
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Select Case Extension.ToUpper
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Case ".EML" : oFormat = XtraRichEdit.DocumentFormat.Mht
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Case ".DOC" : oFormat = XtraRichEdit.DocumentFormat.Doc
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Case ".DOCX" : oFormat = XtraRichEdit.DocumentFormat.OpenXml
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Case ".ODT" : oFormat = XtraRichEdit.DocumentFormat.OpenDocument
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Case ".RTF" : oFormat = XtraRichEdit.DocumentFormat.Rtf
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Case ".TXT" : oFormat = XtraRichEdit.DocumentFormat.PlainText
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End Select
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Return oFormat
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End Function
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Private Sub btnOpen_Click(sender As Object, e As EventArgs)
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GdViewer.ZoomMode = ViewerZoomMode.ZoomModeWidthViewer
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GdViewer.DocumentAlignment = ViewerDocumentAlignment.DocumentAlignmentTopCenter
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If OpenFileDialog.ShowDialog() = DialogResult.OK Then
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GdViewer.DisplayFromFile(OpenFileDialog.FileName)
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End If
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GdViewer.Focus()
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UpdateMainUi()
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End Sub
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''' <summary>
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''' Configures the viewer to hide the file path to the end-user.
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''' </summary>
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''' <param name="ViewOnly">
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''' True means that all file info should be hidden from the end-user
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''' False means the end user may see the filepath or other info about the file
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''' </param>
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Public Sub SetViewOnly(ViewOnly As Boolean)
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If ViewOnly Then
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buttonPrint.Visibility = XtraBars.BarItemVisibility.Never
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Else
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buttonPrint.Visibility = XtraBars.BarItemVisibility.Always
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End If
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_hide_file_info_from_user = ViewOnly
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End Sub
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Public Sub SetAllowAnnotations(AllowAnnotations As Boolean)
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End Sub
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''' <summary>
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''' DEPRECATED: Use SetViewOnly
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''' </summary>
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Public Sub RightViewOnly(ViewOnly As Boolean)
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SetViewOnly(ViewOnly)
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End Sub
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''' <summary>
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''' DEPRECATED: Use SetViewOnly
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''' </summary>
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Public Sub RightOnlyView(ViewOnly As Boolean)
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SetViewOnly(ViewOnly)
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End Sub
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Private Sub UpdateMainUi()
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End Sub
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Private Sub btnFirstPage_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonFirstPage.ItemClick
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GdViewer.DisplayFirstPage()
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End Sub
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Private Sub btnPreviousPage_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonPrevPage.ItemClick
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GdViewer.DisplayPreviousPage()
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End Sub
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Private Sub btnNextPage_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonNextPage.ItemClick
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GdViewer.DisplayNextPage()
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End Sub
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Private Sub btnLastPage_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonLastPage.ItemClick
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GdViewer.DisplayLastPage()
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End Sub
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Private Sub tbCurrentPage_Leave(ByVal sender As System.Object, ByVal e As EventArgs) Handles txtCurrentPage.EditValueChanged
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Dim page As Integer = 0
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If Integer.TryParse(txtCurrentPage.EditValue, page) Then
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If page > 0 And page <= GdViewer.PageCount Then
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GdViewer.DisplayPage(page)
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UpdateaNavigationToolbar()
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End If
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End If
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End Sub
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Private Sub GdViewer1_PageChanged() Handles GdViewer.PageChanged
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UpdateaNavigationToolbar()
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End Sub
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Private Sub GdViewer1_AfterZoomChange() Handles GdViewer.AfterZoomChange
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UpdateaNavigationToolbar()
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If GdViewer.MouseMode = ViewerMouseMode.MouseModeAreaZooming Then
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GdViewer.MouseMode = ViewerMouseMode.MouseModePan
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End If
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End Sub
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Private Sub btnZoomOut_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonZoomOut.ItemClick
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GdViewer.ZoomOUT()
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End Sub
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Private Sub btnZoomIn_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonZoomIn.ItemClick
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GdViewer.ZoomIN()
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End Sub
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Private Sub btnPrint_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonPrint.ItemClick
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If GdViewer.PageCount = 0 Then
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Return
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End If
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GdViewer.PrintDialog()
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End Sub
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Private Sub btnRotateLeft_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonRotateLeft.ItemClick
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GdViewer.Rotate(RotateFlipType.Rotate270FlipNone)
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End Sub
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Private Sub btnRotateRight_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonRotateRight.ItemClick
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GdViewer.Rotate(RotateFlipType.Rotate90FlipNone)
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End Sub
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Private Sub btnFlipX_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonFlipX.ItemClick
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GdViewer.Rotate(RotateFlipType.RotateNoneFlipX)
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End Sub
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Private Sub btnFlipY_Click(ByVal sender As System.Object, ByVal e As EventArgs) Handles buttonFlipY.ItemClick
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GdViewer.Rotate(RotateFlipType.RotateNoneFlipY)
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End Sub
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Private Sub GdViewer1_TransferEnded(ByVal status As GdPictureStatus, ByVal download As System.Boolean) Handles GdViewer.TransferEnded
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GdViewer.Focus()
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UpdateMainUi()
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End Sub
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Private Sub AddSearchRegion(ByVal occurence As Integer, ByVal leftCoordinate As Single, ByVal topCoordinate As Single, ByVal regionWidth As Single, ByVal regionheight As Single, ByVal ensureVisibility As Boolean)
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Dim searchRegion As Integer = GdViewer.AddRegionInches("SearchResult" & occurence, leftCoordinate, topCoordinate, regionWidth, regionheight, ForegroundMixMode.ForegroundMixModeMASKPEN, Color.Yellow)
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GdViewer.SetRegionEditable(searchRegion, False)
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If ensureVisibility Then
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GdViewer.EnsureRegionVisibility(searchRegion)
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End If
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End Sub
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Private Sub btnSettings_Click(ByVal sender As Object, ByVal e As EventArgs) Handles buttonSettings.ItemClick
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Using frmSettings As New frmViewerSettings(GdViewer)
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frmSettings.ShowDialog(Me)
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End Using
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UpdateaNavigationToolbar()
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End Sub
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Private Sub UpdateaNavigationToolbar()
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Try
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Dim oCurrentZoom As Double = GdViewer.Zoom
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Dim oCurrentPage As Integer = GdViewer.CurrentPage()
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Dim oPageCount As Integer = GdViewer.PageCount
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txtCurrentPage.EditValue = oCurrentPage.ToString()
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If oCurrentPage = oPageCount Then
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buttonLastPage.Enabled = False
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buttonNextPage.Enabled = False
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buttonPrevPage.Enabled = True
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buttonFirstPage.Enabled = True
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ElseIf oCurrentPage = 1 Then
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buttonPrevPage.Enabled = False
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buttonFirstPage.Enabled = False
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buttonLastPage.Enabled = True
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buttonNextPage.Enabled = True
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Else
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buttonPrevPage.Enabled = True
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buttonFirstPage.Enabled = True
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buttonLastPage.Enabled = True
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buttonNextPage.Enabled = True
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End If
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Catch ex As Exception
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_logger.Error(ex)
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End Try
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End Sub
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Private Sub btnFitWidth_Click(ByVal sender As Object, ByVal e As EventArgs) Handles buttonFitWidth.ItemClick
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GdViewer.ZoomMode = ViewerZoomMode.ZoomModeWidthViewer
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End Sub
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Private Sub btnFitPage_Click(ByVal sender As Object, ByVal e As EventArgs) Handles buttonFitPage.ItemClick
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GdViewer.ZoomMode = ViewerZoomMode.ZoomModeFitToViewer
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End Sub
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Private Sub RichEditControl1_SizeChanged(sender As Object, e As EventArgs) Handles RichEditControl1.SizeChanged
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Dim oControlWidth = RichEditControl1.Width - 100
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Dim oPageWidth = Units.DocumentsToPixelsF(RichEditControl1.Document.Sections(0).Page.Width, RichEditControl1.DpiX)
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RichEditControl1.Views.PrintLayoutView.ZoomFactor = oControlWidth / oPageWidth
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End Sub
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End Class
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