Mastering Visual Basic 6/mastvb6.iso/ch_code/ch10/mdipad/editor.frm

Visual Basic Form | 1998-07-03 | 7.3 KB | 246 lines

VERSION 5.00
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0"; "COMDLG32.OCX"
Begin VB.Form EditorForm
   Caption         =   "Simple Text Editor"
   ClientHeight    =   5760
   ClientLeft      =   165
   ClientTop       =   450
   ClientWidth     =   7260
   LinkTopic       =   "Form1"
   MDIChild        =   -1  'True
   ScaleHeight     =   5760
   ScaleWidth      =   7260
   Begin VB.TextBox Editor
      Height          =   5745
      HideSelection   =   0   'False
      Left            =   0
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   0
      Top             =   0
      Width           =   7230
   End
   Begin MSComDlg.CommonDialog CommonDialog1
      Left            =   0
      Top             =   0
      _ExtentX        =   847
      _ExtentY        =   847
      _Version        =   393216
      FontSize        =   1.17491e-38
   End
   Begin VB.Menu FileMenu
      Caption         =   "File"
      Begin VB.Menu FileNew
         Caption         =   "New"
      End
      Begin VB.Menu FileOpen
         Caption         =   "Open"
      End
      Begin VB.Menu FileSave
         Caption         =   "Save"
      End
      Begin VB.Menu FileSaveAs
         Caption         =   "Save As"
      End
      Begin VB.Menu FileSeparator
         Caption         =   "-"
      End
      Begin VB.Menu FileExit
         Caption         =   "Exit"
      End
   End
   Begin VB.Menu EditMenu
      Caption         =   "Edit"
      Begin VB.Menu EditCopy
         Caption         =   "Copy"
      End
      Begin VB.Menu EditCut
         Caption         =   "Cut"
      End
      Begin VB.Menu EditPaste
         Caption         =   "Paste"
      End
      Begin VB.Menu EditSelect
         Caption         =   "Select All"
      End
      Begin VB.Menu EditSeparator
         Caption         =   "-"
      End
      Begin VB.Menu EditFind
         Caption         =   "Find"
      End
   End
   Begin VB.Menu ProcessMenu
      Caption         =   "Process"
      Begin VB.Menu ProcessUpper
         Caption         =   "Upper Case"
      End
      Begin VB.Menu ProcessLower
         Caption         =   "Lower Case"
      End
      Begin VB.Menu ProcessNumber
         Caption         =   "Number Lines"
      End
   End
   Begin VB.Menu CustomMenu
      Caption         =   "Customize"
      Begin VB.Menu CustomFont
         Caption         =   "Font"
      End
      Begin VB.Menu CustomPage
         Caption         =   "Page Color"
      End
      Begin VB.Menu CustomText
         Caption         =   "Text Color"
      End
   End
Attribute VB_Name = "EditorForm"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'  ******************************
'  ******************************
'  ** MASTERING VB6            **
'  ** by Evangelos Petroutos   **
'  ** SYBEX, 1998              **
'  ******************************
'  ******************************
Option Explicit
Private Sub CustomFont_Click()
    CommonDialog1.Flags = cdlCFBoth
    CommonDialog1.ShowFont
    Editor.Font = CommonDialog1.FontName
    Editor.FontBold = CommonDialog1.FontBold
    Editor.FontItalic = CommonDialog1.FontItalic
    Editor.FontSize = CommonDialog1.FontSize
End Sub
Private Sub CustomPage_Click()
    CommonDialog1.ShowColor
    Editor.BackColor = CommonDialog1.Color
End Sub
Private Sub CustomText_Click()
    CommonDialog1.ShowColor
    Editor.ForeColor = CommonDialog1.Color
End Sub
Private Sub EditCopy_Click()
    Clipboard.SetText Editor.SelText
End Sub
Private Sub EditCut_Click()
    Clipboard.SetText Editor.SelText
    Editor.SelText = ""
End Sub
Private Sub EditFind_Click()
    Form2.Show
End Sub
Private Sub EditPaste_Click()
    Editor.SelText = Clipboard.GetText
End Sub
Private Sub EditSelect_Click()
    Editor.SelStart = 0
    Editor.SelLength = Len(Editor.Text)
End Sub
Private Sub FileExit_Click()
    Unload MDIForm1
    End
End Sub
Private Sub FileNew_Click()
    MDIForm1.MDINew_Click
End Sub
Private Sub FileOpen_Click()
    MDIForm1.MDIOpen_Click
' CALL THE FORM'S RESIZE METHOD TO MAKE SURE
' THE VERTICAL SCROLLBAR IS VISIBLE
    Form_Resize
End Sub
Private Sub FileSave_Click()
Dim FNum As Integer
Dim txt As String
    If OpenFile = "" Then
        FileSaveAs_Click
        Exit Sub
    End If
On Error GoTo FileError
    FNum = FreeFile
    Open OpenFiles(currentDocument) For Output As #1
    Print #FNum, Editor.Text
    Close #FNum
    Exit Sub
FileError:
    If Err.Number = cdlCancel Then Exit Sub
    MsgBox "Unkown error while saving file " & OpenFiles(currentDocument)
    OpenFiles(currentDocument) = ""
End Sub
Private Sub FileSaveAs_Click()
Dim FNum As Integer
Dim txt As String
On Error GoTo FileError
    CommonDialog1.CancelError = True
    CommonDialog1.Flags = cdlOFNOverwritePrompt
    CommonDialog1.DefaultExt = "TXT"
    CommonDialog1.Filter = "Text files|*.TXT|All files|*.*"
    CommonDialog1.ShowSave
    FNum = FreeFile
    Open CommonDialog1.FileName For Output As #1
    Print #FNum, Editor.Text
    Close #FNum
    OpenFiles(currentDocument) = CommonDialog1.FileName
    DocumentForms(currentDocument).Caption = OpenFiles(currentDocument)
    Exit Sub
FileError:
    If Err.Number = cdlCancel Then Exit Sub
    MsgBox "Unkown error while saving file " & CommonDialog1.FileName
    OpenFiles(currentDocument) = ""
End Sub
Private Sub Form_GotFocus()
    currentDocument = Me.Tag
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
Dim reply As Integer
    reply = MsgBox("Are you sure you want to close the document " & Me.Tag, _
    vbYesNoCancel + vbInformation)
    If reply = vbCancel Then
        Cancel = True
    ElseIf reply = vbYes Then Exit Sub
    Else
        FileSaveAs_Click
    End If
End Sub
' THE RESIZE METHOD IS PUBLIC BECAUSE IT MUST
' BE CALLED FROM OUTSIDE THIS FORM
Public Sub Form_Resize()
    DocumentForms(currentDocument).Editor.Width = DocumentForms(currentDocument).Width - 10 * Screen.TwipsPerPixelX
    DocumentForms(currentDocument).Editor.Height = DocumentForms(currentDocument).Height - 30 * Screen.TwipsPerPixelX
End Sub
Private Sub ProcessLower_Click()
Dim Sel1 As Integer, Sel2 As Integer
    Sel1 = Editor.SelStart
    Sel2 = Editor.SelLength
    Editor.SelText = LCase$(Editor.SelText)
    Editor.SelStart = Sel1
    Editor.SelLength = Sel2
End Sub
Private Sub ProcessNumber_Click()
Dim tmpText As String, tmpLine As String
Dim firstChar As Integer, lastChar As Integer
Dim currentLine As Integer
firstChar = 1
currentLine = 1
lastChar = InStr(Editor.Text, Chr$(10))
While lastChar > 0
    tmpLine = Format$(currentLine, "000") & "  " & Mid$(Editor.Text, firstChar, lastChar - firstChar + 1)
    currentLine = currentLine + 1
    firstChar = lastChar + 1
    lastChar = InStr(firstChar, Editor.Text, Chr$(10))
    tmpText = tmpText + tmpLine
Editor.Text = tmpText
End Sub
Private Sub ProcessUpper_Click()
Dim Sel1 As Integer, Sel2 As Integer
    Sel1 = Editor.SelStart
    Sel2 = Editor.SelLength
    Editor.SelText = UCase$(Editor.SelText)
    Editor.SelStart = Sel1
    Editor.SelLength = Sel2
End Sub