Discovering Windows 98/WinExpert9.iso/features/VisualBasic/Vb07/frmDoodler.frm

Visual Basic Form | 1998-06-03 | 6KB | 175 lines

VERSION 5.00
Begin VB.Form frmDoodler
   BorderStyle     =   1  'Fixed Single
   Caption         =   "Doodler"
   ClientHeight    =   4725
   ClientLeft      =   45
   ClientTop       =   615
   ClientWidth     =   7725
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   4725
   ScaleWidth      =   7725
   StartUpPosition =   3  'Windows Default
   Begin VB.PictureBox picDrawingArea
      AutoRedraw      =   -1  'True
      BackColor       =   &H00FFFFFF&
      Height          =   4215
      Left            =   2160
      ScaleHeight     =   4155
      ScaleWidth      =   5355
      TabIndex        =   5
      Top             =   360
      Width           =   5415
   End
   Begin VB.ListBox lstColours
      Height          =   1230
      Left            =   120
      TabIndex        =   4
      Top             =   3360
      Width           =   1935
   End
   Begin VB.CheckBox chkContinuousDrawing
      Caption         =   "Continuous Drawing"
      Height          =   255
      Left            =   120
      TabIndex        =   2
      Top             =   2760
      Width           =   1935
   End
   Begin VB.CommandButton cmdClear
      Caption         =   "Clear"
      Height          =   375
      Left            =   120
      TabIndex        =   1
      Top             =   2280
      Width           =   1935
   End
   Begin VB.Frame fraShape
      Caption         =   "Shape"
      Height          =   2055
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   1935
      Begin VB.OptionButton optShape
         Caption         =   "Vertical Line"
         Height          =   255
         Index           =   3
         Left            =   240
         TabIndex        =   10
         Top             =   1560
         Width           =   1455
      End
      Begin VB.OptionButton optShape
         Caption         =   "Horizontal Line"
         Height          =   255
         Index           =   2
         Left            =   240
         TabIndex        =   9
         Top             =   1200
         Width           =   1455
      End
      Begin VB.OptionButton optShape
         Caption         =   "Square"
         Height          =   255
         Index           =   1
         Left            =   240
         TabIndex        =   8
         Top             =   840
         Width           =   1455
      End
      Begin VB.OptionButton optShape
         Caption         =   "Circle"
         Height          =   255
         Index           =   0
         Left            =   240
         TabIndex        =   7
         Top             =   480
         Width           =   1455
      End
   End
   Begin VB.Label Label2
      Caption         =   "Drawing Area"
      Height          =   255
      Left            =   2160
      TabIndex        =   6
      Top             =   120
      Width           =   1935
   End
   Begin VB.Label Label1
      Caption         =   "Colour"
      Height          =   255
      Left            =   120
      TabIndex        =   3
      Top             =   3120
      Width           =   1935
   End
   Begin VB.Menu mnuFile
      Caption         =   "&File"
      Begin VB.Menu mnuFileOpen
         Caption         =   "&Open..."
      End
   End
Attribute VB_Name = "frmDoodler"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Private mlngChosenShape As Long
Private Sub cmdClear_Click()
    picDrawingArea.Cls
End Sub
Private Sub Form_Load()
    With lstColours
        .AddItem "Black"
        .ItemData(.NewIndex) = RGB(0, 0, 0)
        .AddItem "Red"
        .ItemData(.NewIndex) = RGB(255, 0, 0)
        .AddItem "Green"
        .ItemData(.NewIndex) = RGB(0, 255, 0)
        .AddItem "Blue"
        .ItemData(.NewIndex) = RGB(0, 0, 255)
        .AddItem "Yellow"
        .ItemData(.NewIndex) = RGB(255, 255, 0)
        .AddItem "Cyan"
        .ItemData(.NewIndex) = RGB(0, 255, 255)
        .AddItem "Magenta"
        .ItemData(.NewIndex) = RGB(255, 0, 255)
        .AddItem "White"
        .ItemData(.NewIndex) = RGB(255, 255, 255)
        .ListIndex = 0
    End With
    optShape(0).Value = True
End Sub
Private Sub optShape_Click(Index As Integer)
    mlngChosenShape = Index
End Sub
Private Sub picDrawingArea_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Call mDrawShape(X, Y)
End Sub
Private Sub picDrawingArea_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    If Button = vbLeftButton And chkContinuousDrawing = vbChecked Then
        Call mDrawShape(X, Y)
    End If
End Sub
Private Sub mDrawShape(X As Single, Y As Single)
    Dim lngColour As Long

    lngColour = lstColours.ItemData(lstColours.ListIndex)
    Select Case optShape(mlngChosenShape).Caption
       Case "Circle"
           picDrawingArea.Circle (X, Y), 300, lngColour
       Case "Square"
           picDrawingArea.Line (X - 300, Y - 300)-(X + 300, Y + 300), lngColour, B
       Case "Horizontal Line"
           picDrawingArea.Line (X - 300, Y)-(X + 300, Y), lngColour
       Case "Vertical Line"
           picDrawingArea.Line (X, Y - 300)-(X, Y + 300), lngColour
       Case Else
           MsgBox "Encountered unexpected shape """ & optShape(mlngChosenShape).Caption & """", vbExclamation, "Warning"
    End Select
End Sub