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Visual Basic Form | 1992-10-21 | 105.7 KB | 2,494 lines

VERSION 2.00 Begin Form Editor Caption = "IconWorks Editor: 1 - [Untitled]" ClipControls = 0 'False ForeColor = &H00FFFFFF& Height = 5355 Icon = ICONEDIT.FRX:0000 Left = 1935 LinkMode = 1 'Source LinkTopic = "Form1" ScaleHeight = 311 ScaleMode = 3 'Pixel ScaleWidth = 411 Top = 1215 Width = 6285 Begin PictureBox Pic_ToolPalette AutoSize = -1 'True BackColor = &H00808080& BorderStyle = 0 'None DrawMode = 6 'Invert DrawWidth = 2 Height = 3840 Left = 0 Picture = ICONEDIT.FRX:0302 ScaleHeight = 256 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 0 TabStop = 0 'False Top = 0 Visible = 0 'False Width = 480 End Begin VScrollBar Scrl_Zoom Height = 3870 HelpContextID = 1903 LargeChange = 32 Left = 480 Max = 258 Min = 34 SmallChange = 32 TabIndex = 4 Tag = "9040" Top = -15 Value = 34 Visible = 0 'False Width = 270 End Begin PictureBox Pic_Edit BackColor = &H000000FF& Height = 3870 Left = 735 ScaleHeight = 256 ScaleMode = 3 'Pixel ScaleWidth = 256 TabIndex = 2 Tag = "9000" Top = -15 Visible = 0 'False Width = 3870 Begin PictureBox Pic_Image AutoRedraw = -1 'True BackColor = &H00000000& BorderStyle = 0 'None ForeColor = &H00000000& Height = 480 Left = 1380 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 5 TabStop = 0 'False Top = 945 Visible = 0 'False Width = 480 End Begin PictureBox Pic_Mask AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None ForeColor = &H00000000& Height = 480 Left = 1965 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 6 TabStop = 0 'False Top = 945 Visible = 0 'False Width = 480 End Begin PictureBox Pic_Grid AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None ForeColor = &H00000000& Height = 480 Left = 1380 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 19 Top = 1515 Visible = 0 'False Width = 480 End Begin PictureBox Pic_Work AutoRedraw = -1 'True AutoSize = -1 'True BackColor = &H00000000& BorderStyle = 0 'None FillStyle = 0 'Solid ForeColor = &H00000000& Height = 480 Left = 1965 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 14 TabStop = 0 'False Top = 1515 Visible = 0 'False Width = 480 End Begin PictureBox Pic_TempImage AutoRedraw = -1 'True BackColor = &H00000000& BorderStyle = 0 'None ForeColor = &H00000000& Height = 480 Left = 1380 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 15 Top = 2085 Visible = 0 'False Width = 480 End Begin PictureBox Pic_TempMask AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None Height = 480 Left = 1965 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 16 Top = 2085 Visible = 0 'False Width = 480 End Begin PictureBox Pic_EditTemp AutoRedraw = -1 'True BackColor = &H00FFFFFF& Height = 480 Left = 1680 ScaleHeight = 30 ScaleMode = 3 'Pixel ScaleWidth = 30 TabIndex = 20 Top = 2745 Visible = 0 'False Width = 480 End End Begin PictureBox Pic_StatusArea BackColor = &H00C0C0C0& FontBold = -1 'True FontItalic = 0 'False FontName = "Courier" FontSize = 9.75 FontStrikethru = 0 'False FontTransparent = 0 'False FontUnderline = 0 'False ForeColor = &H00C0C0C0& Height = 4680 HelpContextID = 1904 Left = 4590 ScaleHeight = 310 ScaleMode = 3 'Pixel ScaleWidth = 104 TabIndex = 7 TabStop = 0 'False Tag = "9010" Top = -15 Visible = 0 'False Width = 1590 Begin PictureBox Pic_Icons AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None DragIcon = ICONEDIT.FRX:137C DrawMode = 4 'Not Copy Pen FillStyle = 0 'Solid ForeColor = &H00000000& Height = 480 Index = 0 Left = 210 Picture = ICONEDIT.FRX:167E ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 8 TabStop = 0 'False Tag = "9130" Top = 180 Width = 480 End Begin PictureBox Pic_Icons AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None DragIcon = ICONEDIT.FRX:1980 FillStyle = 0 'Solid ForeColor = &H00000000& Height = 480 Index = 1 Left = 885 Picture = ICONEDIT.FRX:1C82 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 9 TabStop = 0 'False Tag = "9130" Top = 180 Width = 480 End Begin PictureBox Pic_Icons AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None DragIcon = ICONEDIT.FRX:1F84 FillStyle = 0 'Solid ForeColor = &H00000000& Height = 480 Index = 2 Left = 210 Picture = ICONEDIT.FRX:2286 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 10 TabStop = 0 'False Tag = "9130" Top = 840 Width = 480 End Begin PictureBox Pic_Icons AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None DragIcon = ICONEDIT.FRX:2588 FillStyle = 0 'Solid ForeColor = &H00000000& Height = 480 Index = 3 Left = 885 Picture = ICONEDIT.FRX:288A ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 11 TabStop = 0 'False Tag = "9130" Top = 840 Width = 480 End Begin PictureBox Pic_Icons AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None DragIcon = ICONEDIT.FRX:2B8C FillStyle = 0 'Solid ForeColor = &H00000000& Height = 480 Index = 4 Left = 210 Picture = ICONEDIT.FRX:2E8E ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 12 TabStop = 0 'False Tag = "9130" Top = 1500 Width = 480 End Begin PictureBox Pic_Icons AutoRedraw = -1 'True BackColor = &H00FFFFFF& BorderStyle = 0 'None DragIcon = ICONEDIT.FRX:3190 FillStyle = 0 'Solid ForeColor = &H00000000& Height = 480 Index = 5 Left = 885 Picture = ICONEDIT.FRX:3492 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 13 TabStop = 0 'False Tag = "9130" Top = 1500 Width = 480 End Begin PictureBox Pic_Undo BackColor = &H00FFFFFF& BorderStyle = 0 'None DragIcon = ICONEDIT.FRX:3794 ForeColor = &H00FFFFFF& Height = 480 HelpContextID = 1902 Left = 1035 Picture = ICONEDIT.FRX:3A96 ScaleHeight = 32 ScaleMode = 3 'Pixel ScaleWidth = 32 TabIndex = 3 TabStop = 0 'False Tag = "9150" Top = 2505 Width = 480 End Begin OptionButton Opt_Mouse BackColor = &H00C0C0C0& Height = 360 Index = 0 Left = 690 TabIndex = 17 Tag = "9160" Top = 3600 Value = -1 'True Width = 195 End Begin OptionButton Opt_Mouse BackColor = &H00C0C0C0& Height = 360 HelpContextID = 1901 Index = 1 Left = 690 TabIndex = 1 Tag = "9160" Top = 4200 Width = 195 End End Begin PictureBox Pic_ColorPalette BackColor = &H00FFFFFF& ForeColor = &H00000000& Height = 810 HelpContextID = 1905 Left = 0 ScaleHeight = 52 ScaleMode = 3 'Pixel ScaleWidth = 305 TabIndex = 18 TabStop = 0 'False Tag = "9030" Top = 3840 Visible = 0 'False Width = 4605 End Begin Menu Menu_File Caption = "&File" HelpContextID = 1100 Begin Menu Menu_FileSelection Caption = "&New" HelpContextID = 1101 Index = 0 End Begin Menu Menu_FileSelection Caption = "&Open..." HelpContextID = 1102 Index = 1 End Begin Menu Menu_FileSelection Caption = "&Save" HelpContextID = 1103 Index = 2 Shortcut = +{F12} End Begin Menu Menu_FileSelection Caption = "Save &As..." HelpContextID = 1104 Index = 3 Shortcut = {F12} End Begin Menu Menu_FileSelection Caption = "-" Index = 4 End Begin Menu Menu_FileSelection Caption = "E&xit" HelpContextID = 1105 Index = 5 End End Begin Menu Menu_Edit Caption = "&Edit" HelpContextID = 1200 Begin Menu Menu_EditSelection Caption = "&Undo" HelpContextID = 1201 Index = 0 Shortcut = %{BKSP} End Begin Menu Menu_EditSelection Caption = "-" Index = 1 End Begin Menu Menu_EditSelection Caption = "Cu&t" HelpContextID = 1202 Index = 2 Shortcut = +{DEL} End Begin Menu Menu_EditSelection Caption = "&Copy" HelpContextID = 1203 Index = 3 Shortcut = ^{INSERT} End Begin Menu Menu_EditSelection Caption = "&Paste" HelpContextID = 1204 Index = 4 Shortcut = +{INSERT} End Begin Menu Menu_EditSelection Caption = "Paste &Opaque" HelpContextID = 1205 Index = 5 Shortcut = ^O End Begin Menu Menu_EditSelection Caption = "&Delete" HelpContextID = 1206 Index = 6 Shortcut = {DEL} End Begin Menu Menu_EditSelection Caption = "&Select All" HelpContextID = 1207 Index = 7 Shortcut = ^A End Begin Menu Menu_EditSelection Caption = "-" Index = 8 End Begin Menu Menu_EditSelection Caption = "Flip &Horizontal" HelpContextID = 1208 Index = 9 Shortcut = ^H End Begin Menu Menu_EditSelection Caption = "Flip &Vertical" HelpContextID = 1209 Index = 10 Shortcut = ^V End Begin Menu Menu_EditSelection Caption = "-" Index = 11 End Begin Menu Menu_EditSelection Caption = "Rotate 90 &Right" HelpContextID = 1210 Index = 12 Shortcut = ^R End Begin Menu Menu_EditSelection Caption = "Rotate 90 &Left" HelpContextID = 1211 Index = 13 Shortcut = ^L End Begin Menu Menu_EditSelection Caption = "-" Index = 14 End Begin Menu Menu_EditSelection Caption = "&Invert" HelpContextID = 1212 Index = 15 Shortcut = ^I End End Begin Menu Menu_View Caption = "&View" HelpContextID = 1300 Begin Menu Menu_ViewSelection Caption = "&Status Area" Checked = -1 'True HelpContextID = 1301 Index = 0 Shortcut = ^S End Begin Menu Menu_ViewSelection Caption = "&Tool Palette" Checked = -1 'True HelpContextID = 1302 Index = 1 Shortcut = ^T End Begin Menu Menu_ViewSelection Caption = "&Color Palette" Checked = -1 'True HelpContextID = 1303 Index = 2 Shortcut = ^C End Begin Menu Menu_ViewSelection Caption = "&Zooming Scroll bar" Checked = -1 'True HelpContextID = 1304 Index = 3 Shortcut = ^Z End Begin Menu Menu_ViewSelection Caption = "Show &All" HelpContextID = 1305 Index = 4 End Begin Menu Menu_ViewSelection Caption = "-" Index = 5 End Begin Menu Menu_ViewSelection Caption = "&Grid" HelpContextID = 1306 Index = 6 Shortcut = ^G End Begin Menu Menu_ViewSelection Caption = "&Line Grid" HelpContextID = 1307 Index = 7 End Begin Menu Menu_ViewSelection Caption = "&Dotted Grid" HelpContextID = 1308 Index = 8 End Begin Menu Menu_ViewSelection Caption = "-" Index = 9 End Begin Menu Menu_ViewSelection Caption = "Zoom &In" HelpContextID = 1309 Index = 10 Shortcut = ^{F11} End Begin Menu Menu_ViewSelection Caption = "Zoom &Out" HelpContextID = 1310 Index = 11 Shortcut = ^{F12} End Begin Menu Menu_ViewSelection Caption = "-" Index = 12 End Begin Menu Menu_ViewSelection Caption = "&Focus to Editor on Drag&&Drop" Checked = -1 'True HelpContextID = 1311 Index = 13 End Begin Menu Menu_ViewSelection Caption = "Display &Border on selected Icon" Checked = -1 'True HelpContextID = 1312 Index = 14 End Begin Menu Menu_ViewSelection Caption = "&Pop-up Tools menu on Form Click" Checked = -1 'True HelpContextID = 1313 Index = 15 End End Begin Menu Menu_Tools Caption = "&Tools" HelpContextID = 1400 Begin Menu Menu_ToolsSelection Caption = "&Select" HelpContextID = 1401 Index = 0 End Begin Menu Menu_ToolsSelection Caption = "&Paint" HelpContextID = 1402 Index = 1 End Begin Menu Menu_ToolsSelection Caption = "&Fill" HelpContextID = 1403 Index = 2 End Begin Menu Menu_ToolsSelection Caption = "&Line" HelpContextID = 1404 Index = 3 End Begin Menu Menu_ToolsSelection Caption = "&Square" HelpContextID = 1405 Index = 4 End Begin Menu Menu_ToolsSelection Caption = "Filled S&quare" HelpContextID = 1406 Index = 5 End Begin Menu Menu_ToolsSelection Caption = "&Circle" HelpContextID = 1407 Index = 6 End Begin Menu Menu_ToolsSelection Caption = "Filled C&ircle" HelpContextID = 1408 Index = 7 End End Begin Menu Menu_Icons Caption = "&Icons" HelpContextID = 1500 Begin Menu Menu_IconsSelection Caption = "&1 - [Untitled]" Index = 0 End Begin Menu Menu_IconsSelection Caption = "&2 - [Untitled]" Index = 1 End Begin Menu Menu_IconsSelection Caption = "&3 - [Untitled]" Index = 2 End Begin Menu Menu_IconsSelection Caption = "&4 - [Untitled]" Index = 3 End Begin Menu Menu_IconsSelection Caption = "&5 - [Untitled]" Index = 4 End Begin Menu Menu_IconsSelection Caption = "&6 - [Untitled]" Index = 5 End End Begin Menu Menu_Color Caption = "&Color" HelpContextID = 1600 Begin Menu Menu_ColorSelection Caption = "&Colors..." HelpContextID = 1601 Index = 0 End Begin Menu Menu_ColorSelection Caption = "&Default Color Palette" Checked = -1 'True HelpContextID = 1602 Index = 1 End Begin Menu Menu_ColorSelection Caption = "S&olid Colors Only" HelpContextID = 1603 Index = 2 End Begin Menu Menu_ColorSelection Caption = "I&NI File Color Palette" HelpContextID = 1604 Index = 3 End Begin Menu Menu_ColorSelection Caption = "-" Index = 4 End Begin Menu Menu_ColorSelection Caption = "&Save Color Palette to INI file" HelpContextID = 1605 Index = 5 End Begin Menu Menu_ColorSelection Caption = "-" Index = 6 End Begin Menu Menu_ColorSelection Caption = "&Left/Right Colors" Checked = -1 'True HelpContextID = 1606 Index = 7 End Begin Menu Menu_ColorSelection Caption = "Screen/&Inverse Colors" HelpContextID = 1607 Index = 8 End End Begin Menu Menu_Brush Caption = "&Brush" HelpContextID = 1700 Begin Menu Menu_BrushSelection Caption = "&Small (1 x 1)" Checked = -1 'True HelpContextID = 1701 Index = 1 End Begin Menu Menu_BrushSelection Caption = "&Medium (3 x 3)" HelpContextID = 1702 Index = 3 End Begin Menu Menu_BrushSelection Caption = "&Large (5 x 5)" HelpContextID = 1703 Index = 5 End End Begin Menu Menu_Help Caption = "&Help" Begin Menu Menu_HelpSelection Caption = "&Index" Index = 1 End Begin Menu Menu_HelpSelection Caption = "&Keyboard" Index = 2 End Begin Menu Menu_HelpSelection Caption = "&Commands" Index = 3 End Begin Menu Menu_HelpSelection Caption = "&Using Help" Index = 4 End Begin Menu Menu_HelpSelection Caption = "-" Index = 5 End Begin Menu Menu_HelpSelection Caption = "&About..." Index = 6 End End DefInt A-Z ' When the View.Grid option is selected or deselected, this routine ' performs the neccessary checking, unchecking of the Grid menu item ' and Enables or disables the Grid type menu items appropriately, ' and creates the Grid if selected. Sub Activate_Grid () Menu_ViewSelection(MID_GRID).Checked = Not Menu_ViewSelection(MID_GRID).Checked Menu_ViewSelection(MID_LINE_GRID).Enabled = Menu_ViewSelection(MID_GRID).Checked Menu_ViewSelection(MID_DOTTED_GRID).Enabled = Menu_ViewSelection(MID_GRID).Checked If Menu_ViewSelection(MID_GRID).Checked Then Create_Grid Magnify_Icon 0, 0, 31, 31 End Sub Sub Adjust_Color_Palette () ' Determine if Editor is large enough for ColorPalette If (ScaleHeight < (Pic_ColorPalette.Height + 34)) And Menu_ViewSelection(MID_COLOR_PALETTE).Checked Then Menu_ViewSelection(MID_COLOR_PALETTE).Checked = False Menu_ViewSelection(MID_COLOR_PALETTE).Enabled = False Else Menu_ViewSelection(MID_COLOR_PALETTE).Enabled = True ' Check if the ColorPalette is selected to be displayed. If Menu_ViewSelection(MID_COLOR_PALETTE).Checked Then NewTop = ScaleHeight - Pic_ColorPalette.Height NewWidth = ScaleWidth ' Check if the StatusArea is currently displayed, since the StatusArea ' affects the width of the ColorPalette. If Menu_ViewSelection(MID_STATUS_BAR).Checked Then NewWidth = NewWidth - Pic_StatusArea.Width + 1 ' Reposition and Resize the ColorPalette. Pic_ColorPalette.Move Pic_ColorPalette.Left, NewTop, NewWidth End If End If End Sub ' When the Editor is Resized, the the Zoom Scrollbar must be resized, ' repositioned. This routine performs the neccessary repositioning ' for the Zoom Scrollbar. Sub Adjust_ScrollBar () If Menu_ViewSelection(MID_TOOL_PALETTE).Checked Then NewLeft = Pic_ToolPalette.Width Else NewLeft = -1 NewHeight = ScaleHeight + 2 + Menu_ViewSelection(MID_COLOR_PALETTE).Checked * Pic_ColorPalette.Height NewMax = ScaleWidth - (NewLeft - Menu_ViewSelection(MID_ZOOM_SCROLLBAR).Checked * Scrl_Zoom.Width) + 3 + (Menu_ViewSelection(MID_STATUS_BAR).Checked * Pic_StatusArea.Width) ' Set the new Max value to the smaller of the NewHeight and the NewMax value. If NewMax > NewHeight Then NewMax = NewHeight ' We must adjust the New Max value obtained above so it is a multiple of 32. While (NewMax - 2) Mod 32 NewMax = NewMax - 1 Wend Scrl_Zoom.Move NewLeft, Scrl_Zoom.Top, Scrl_Zoom.Width, NewHeight Scrl_Zoom.Max = NewMax ' Determine if current size of the Editing area is larger than the new maximum size. If Pic_Edit.Height > Scrl_Zoom.Max Then Scrl_Zoom.Value = Scrl_Zoom.Max Else Scrl_Zoom_Change End If End Sub ' When the Editor is Resized, the the StatusArea must be resized, and hidden if necessary Sub Adjust_Status_Bar () ' Determine if Editor is large enough for StatusArea If ((ScaleHeight < (Pic_Icons(5).Top + Pic_Icons(5).Height + HIGHLIGHT)) Or (ScaleWidth < 2 * Pic_StatusArea.Width)) And Menu_ViewSelection(MID_STATUS_BAR).Checked Then Menu_ViewSelection(MID_STATUS_BAR).Checked = False Menu_ViewSelection(MID_STATUS_BAR).Enabled = False Else Menu_ViewSelection(MID_STATUS_BAR).Enabled = True If Menu_ViewSelection(MID_STATUS_BAR).Checked Then OldHeight = Pic_StatusArea.Height Pic_StatusArea.Move ScaleWidth - Pic_StatusArea.Width + 1, Pic_StatusArea.Top, Pic_StatusArea.Width, ScaleHeight + 2 NewTop = Pic_StatusArea.ScaleHeight - 4.25 * Opt_Mouse(0).Height Opt_Mouse(0).Top = NewTop + 1.25 * Opt_Mouse(0).Height Opt_Mouse(1).Top = NewTop + 3 * Opt_Mouse(0).Height Visibility = NewTop >= (Pic_Icons(5).Top + Pic_Icons(5).Height + 2 * HIGHLIGHT + 4) Opt_Mouse(0).Visible = Visibility Opt_Mouse(1).Visible = Visibility ' Determine if there is room to display the Undo Icon If Opt_Mouse(0).Visible Then Pic_Undo.Visible = NewTop >= (Pic_Undo.Top + Pic_Undo.Height) Else Pic_Undo.Visible = (Pic_Undo.Top + Pic_Undo.Height) <= Pic_StatusArea.ScaleHeight End If ' We only want to force it to repaint if its size has changed If OldHeight <> Pic_StatusArea.Height Then Pic_StatusArea.Refresh End If End If End Sub ' When the Editor is Resized, the the ToolPalette may need to be hidden. Sub Adjust_Tool_Palette () If ((ScaleHeight < (Pic_ToolPalette.Height + Pic_ColorPalette.Height)) And Menu_ViewSelection(MID_COLOR_PALETTE).Checked) Or ((ScaleHeight < Pic_ToolPalette.Height) And (Not Menu_ViewSelection(MID_COLOR_PALETTE).Checked)) Then Menu_ViewSelection(MID_TOOL_PALETTE).Checked = False Menu_ViewSelection(MID_TOOL_PALETTE).Enabled = False Else Menu_ViewSelection(MID_TOOL_PALETTE).Enabled = True End If End Sub ' To make magnified pixels appear more like single pixels when working ' with the various tools, this routine is used to adjust the actual pixel ' clicked to the Center or to the Edge of the selected magnified pixel. Sub Adjust_X_and_Y (X As Single, Y As Single, NewX, NewY, Adjustment) Select Case Adjustment Case TO_CENTER NewX = (X \ PixelSize) * PixelSize + (PixelSize \ 2) NewY = (Y \ PixelSize) * PixelSize + (PixelSize \ 2) Case TO_EDGE Xpix = X \ PixelSize Ypix = Y \ PixelSize If (X Mod PixelSize) >= (PixelSize / 2) Then Xpix = Xpix + 1 If (Y Mod PixelSize) >= (PixelSize / 2) Then Ypix = Ypix + 1 NewX = Xpix * PixelSize NewY = Ypix * PixelSize End Select End Sub ' This routine is called when ever the selection is to be comitted to the Icon. Sub Commit_Selection (ResetFlags) ' Erase the Rectangle highlighting the selection If Selecting Then Draw_Selection_Rectangle Scale_Region True, X1, Y1, X2, Y2, True If Menu_ViewSelection(MID_GRID).Checked Then Display_Grid (Pic_Edit.hDC), X1, Y1, X2, Y2 W = X2 - X1 H = Y2 - Y1 If Opaque Then ' An exact copy of Mask and Image of the Selection are copied R = BitBlt(Pic_Image.hDC, X1, Y1, W, H, Pic_TempImage.hDC, X1SelectFrom, Y1SelectFrom, SRCCOPY) R = BitBlt(Pic_Mask.hDC, X1, Y1, W, H, Pic_TempMask.hDC, X1SelectFrom, Y1SelectFrom, SRCCOPY) Else ' Only the Foreground colors are copied. R = BitBlt(Pic_Image.hDC, X1, Y1, W, H, Pic_TempMask.hDC, X1SelectFrom, Y1SelectFrom, SRCAND) R = BitBlt(Pic_Image.hDC, X1, Y1, W, H, Pic_TempImage.hDC, X1SelectFrom, Y1SelectFrom, SRCINVERT) R = BitBlt(Pic_Mask.hDC, X1, Y1, W, H, Pic_TempMask.hDC, X1SelectFrom, Y1SelectFrom, SRCAND) End If If ResetFlags Then Selecting = False MovingSelection = False End If ' Replace the Icons current Mask and Image bitmaps with the new ones. Update_Icon Pic_Icons(CurrentIcon) End Sub ' This routine is called either in response to an Edit.Cut or Edit.Copy Sub Copy_Selection_To_ClipBoard (X1, Y1, X2, Y2) Scale_Region True, X1, Y1, X2, Y2, True Pic_Work.Picture = LoadPicture() Pic_Work.Move Pic_Work.Left, Pic_Work.Top, X2 - X1, Y2 - Y1 R = BitBlt(Pic_Work.hDC, 0, 0, Pic_Work.Width, Pic_Work.Height, Pic_Icons(CurrentIcon).hDC, X1, Y1, SRCCOPY) Clipboard.Clear Clipboard.SetData Pic_Work.Image End Sub ' The Grid is drawn on a separate Picture control with a White BackGround and ' Black Foreground, and is only drawn once. When a piece of the ' grid is to be redisplayed, the part of the Grid that corresponds ' to the area of the Icon that needs to be updated is BitBlt'd ' from the Picture of the Grid over the top of the Displayed Icon, ' Using the SCRAND raster operation. Sub Create_Grid () Pic_Grid.Move 0, 0, Scrl_Zoom.Value, Scrl_Zoom.Value Pic_Grid.Cls If Menu_ViewSelection(MID_LINE_GRID).Checked Then For I = 1 To 31 Pic_Grid.Line (0, I * PixelSize)-(Pic_Grid.ScaleWidth, I * PixelSize) Pic_Grid.Line (I * PixelSize, 0)-(I * PixelSize, Pic_Grid.ScaleHeight) Next I Else For Y = 0 To 31 For X = 0 To 31 Pic_Grid.PSet ((X * PixelSize) + (PixelSize \ 2), (Y * PixelSize) + (PixelSize \ 2)) Next X Next Y End If End Sub ' This routine is called in response to an Edit.Cut, Copy, or ' Delete menu selection. Sub Cut_Copy_Or_Delete_Selection (Index) If Index = MID_DELETE Then Scale_Region True, X1, Y1, X2, Y2, True Else Copy_Selection_To_ClipBoard X1, Y1, X2, Y2 End If If Index <> MID_COPY Then Delete_Selection_From_Icon Selecting = False Magnify_Icon X1, Y1, X2, Y2 End If End Sub ' This routine is called either in response to an Edit.Cut or Edit.Delete Sub Delete_Selection_From_Icon () Scale_Region True, X1, Y1, X2, Y2, True Pic_Image.Line (X1, Y1)-(X2 - 1, Y2 - 1), BLACK, BF Pic_Mask.Line (X1, Y1)-(X2 - 1, Y2 - 1), WHITE, BF Update_Icon Pic_Icons(CurrentIcon) End Sub ' This routine is called to display the mouse coordinates. The ' coordinates are that of the magnified pixels, not the screen ' coordinates, thus, regardless of the magnification of the Icon, ' the coordinates will all range from 0-31. Sub Display_Mouse_Coordinates (Xpix, Ypix) If (Xpix >= 0) And (Xpix <= 31) Then Pic_StatusArea.CurrentX = Pic_StatusArea.ScaleWidth * .25 Pic_StatusArea.Print Space$(Abs(Xpix < 10)) + Format$(Xpix); End If If (Ypix >= 0) And (Ypix <= 31) Then Pic_StatusArea.CurrentX = Pic_StatusArea.ScaleWidth * .75 Pic_StatusArea.Print Space$(Abs(Ypix < 10)) + Format$(Ypix); End If End Sub ' The routine is called to display ' the Line or Box for the above tools when requested. Sub Draw_Line_Or_Box () If CurrentTool = TID_LINE Then Pic_Edit.Line (X1Region, Y1Region)-(X2Region, Y2Region) Else Pic_Edit.Line (X1Region, Y1Region)-(X2Region, Y2Region), , B End If End Sub ' Since Windows INItialization files only allow the writing string information, ' the Color Palette color values are stored in 3 strings, 1 for each row of the ' color palette. This routine is called to extract these color values from ' the strings and assign them to the Long Integer Color array. Sub Extract_Colors_From_String (ColorString As String, FirstColor, RefreshPalette) N = 1 For C = FirstColor To FirstColor + 15 I = InStr(N, ColorString, " ") If I = 0 Then I = Len(ColorString) + 1 Colors(C) = Val(Mid$(ColorString, N, I - N)) N = I + 1 Next C If RefreshPalette Then Display_Color_Palette Pic_ColorPalette If ColorPaletteLoaded Then Display_Color_Palette ColorPalette.Pic_ColorPalette End If End Sub ' This routine performs a Surface Flood fill of the selected area ' within the Icon when the Fill tool is in use. The Mask color ' of all pixels that are different is then compare to the Mask ' color of the original starting Pixel. If the Mask colors are the ' same the Pixel should be changed, otherwise it is unchanged. Sub Fill_Tool_MouseUp (X As Single, Y As Single, X2, Y2) Dim MaskColor As Long, NewPixelColor As Long If (Abs(X) >= 0) And (Abs(X) <= Pic_Edit.ScaleWidth) And (Abs(Y) >= 0) And (Abs(Y) <= Pic_Edit.ScaleHeight) Then Screen.MousePointer = HOURGLASS Xpixel = X \ PixelSize Ypixel = Y \ PixelSize MaskColor = Pic_Mask.Point(Xpixel, Ypixel) Pic_Work.FillColor = Pic_Edit.ForeColor Pic_Work.Picture = Pic_Icons(CurrentIcon).Image R = ExtFloodFill(Pic_Work.hDC, Xpixel, Ypixel, Pic_Icons(CurrentIcon).Point(Xpixel, Ypixel), FLOODFILLSURFACE) For Ypix = 0 To 31 For Xpix = 0 To 31 NewPixelColor = Pic_Work.Point(Xpix, Ypix) If (Pic_Icons(CurrentIcon).Point(Xpix, Ypix) <> NewPixelColor) And (Pic_Mask.Point(Xpix, Ypix) = MaskColor) Then ' ' Pixel was changed by the FloodFill and its Mask matched that of the ' starting Pixel, so we make the change on the Icons Image and Mask ' If Opt_Mouse(SCREEN_COLORS).Value Then NewPixelColor = Pic_Image.ForeColor Pic_Image.PSet (Xpix, Ypix), NewPixelColor Pic_Mask.PSet (Xpix, Ypix) End If Next Xpix Next Ypix Screen.MousePointer = DEFAULT X2 = 31 Y2 = 31 End If End Sub ' This routine Flips (Mirrors) the current Selection either ' Horizontally or Vertically. The Windows API StretchBlt() ' routine is used to perform the Flip operation. Sub Flip_Selection (Index) W = X2SelectFrom - X1SelectFrom H = Y2SelectFrom - Y1SelectFrom If Index = MID_FLIP_HORIZONTAL Then DestX = X2SelectFrom - 1 DestY = Y1SelectFrom DestWidth = -W DestHeight = H Else DestX = X1SelectFrom DestY = Y2SelectFrom - 1 DestWidth = W DestHeight = -H End If R = StretchBlt(Pic_TempImage.hDC, DestX, DestY, DestWidth, DestHeight, Pic_TempImage.hDC, X1SelectFrom, Y1SelectFrom, W, H, SRCCOPY) R = StretchBlt(Pic_TempMask.hDC, DestX, DestY, DestWidth, DestHeight, Pic_TempMask.hDC, X1SelectFrom, Y1SelectFrom, W, H, SRCCOPY) R = StretchBlt(Pic_Work.hDC, DestX, DestY, DestWidth, DestHeight, Pic_Work.hDC, X1SelectFrom, Y1SelectFrom, W, H, SRCCOPY) Scale_Region True, X1, Y1, X2, Y2, False If Not MovingSelection Then Commit_Selection False Magnify_Icon X1, Y1, X2, Y2 End Sub Sub Form_Load () ' Determine color mode and set Icons Image bitmap size accordingly ' This value, ImageSize, is used within the routines Update_Icon and ' Extract_Image_And_Mask within ICONWRKS.BAS ' If GetDeviceCaps(hDC, BITSPIXEL) = 8 Then ImageSize = 1024 'bytes Else ImageSize = 512 'bytes End If ' Depending on the Video mode and video driver being used for Windows, ' the controls on a form might not be the same dimensions when loaded ' under differenct resolutions. Since the Editor is based on a ' 32x32 pixel Icon, the Picture controls that are used to manipulate ' the icons must be set at runtime to 32x32. ' ' Position and size Icon within StatusArea ' Edge = (Pic_StatusArea.ScaleWidth - 64) \ 3 For Y = 0 To 2 For X = 0 To 1 Pic_Icons(X + Y * 2).Move Edge + X * (32 + Edge), Edge + Y * (32 + Edge), 32, 32 Next X Next Y Pic_Mask.Move 0, 0, 32, 32 Pic_Image.Move 0, 0, 32, 32 Pic_TempMask.Move 0, 0, 32, 32 Pic_TempImage.Move 0, 0, 32, 32 Pic_Work.Move 0, 0, 32, 32 Pic_Grid.Move 0, 0, 32, 32 Pic_ToolPalette.Move 0, 0, 32, 256 Pic_Undo.Move Pic_StatusArea.ScaleWidth - 34, (Editor.Pic_Icons(5).Top + Editor.Pic_Icons(5).Height + 2.5 * HIGHLIGHT), 32, 32 Get_INI_File_Settings ' Adjust size of Editor appropriately for the Video mode. ' If Screen.Height = EGA_HEIGHT Then ' ' EGA mode ' NewWidth = Width NewHeight = Screen.Height NewTop = 0 Else ' VGA or Better ' NewWidth = Screen.Width * .75 NewHeight = Screen.Height * .75 NewTop = (Screen.Height - NewHeight) \ 2 End If Move (Screen.Width - NewWidth) \ 2, NewTop, NewWidth, NewHeight ' Icon is initially displayed at full maginification ' Scrl_Zoom.Value = Scrl_Zoom.Max ' Create Monochrome Hdc and Bitmap to be used when replace the ' Icons Monochrome Mask. ' MonoHdc = CreateCompatibleDC(hDC) MonoHbm = CreateCompatibleBitmap(MonoHdc, 32, 32) OldObject = SelectObject(MonoHdc, MonoHbm) ' The BackColor of the Editing area picture control, Pic_Edit, ' is set to Red at design time just so the picture controls contained ' within it are visible at design time. ' Pic_Edit.BackColor = WHITE ' Select initial tool and brushsize ' CurrentTool = TID_PAINT BrushSize = 1 ' Initialize Default Mouse Colors ' MouseColors(0) = BLACK 'Left MouseColors(1) = RED 'Right MouseColors(2) = WHITE 'Screen MouseColors(3) = BLACK 'Inverse ' Add Accelerators that are not available from the Menu Design window ' to the appropriate menu items. ' Menu_FileSelection(MID_EXIT).Caption = "E&xit" + A_TAB + "Alt+F4" 'Menu_EditSelection(MID_UNDO).Caption = "&Undo" + A_TAB + "Alt+Bksp" 'Menu_EditSelection(MID_CUT).Caption = "Cu&t" + A_TAB + "Shift+Del" 'Menu_EditSelection(MID_COPY).Caption = "&Copy" + A_TAB + "Ctrl+Ins" 'Menu_EditSelection(MID_PASTE).Caption = "&Paste" + A_TAB + "Shift+Ins" 'Menu_EditSelection(MID_PASTE_OPAQUE).Caption = "Paste &Opaque" + A_TAB + "Ctrl+Shift+Ins" 'Menu_EditSelection(MID_DELETE).Caption = "&Delete" + A_TAB + "Del" ' Initialize all 6 Icons filename to UNTITLED, so a File.Save opertion ' will react just like a File.Save As, the first time. ' For I = 0 To 5 IconInfo(I).FileName = UNTITLED Next I EditorLoaded = True End Sub ' Just for an added convience when selecting tools, Clicking anywhere ' on the Editor that is not covered by another control, will display ' the Tools menu as a pupup menu at that location. Sub Form_MouseUp (Button As Integer, Shift As Integer, X As Single, Y As Single) ' Menu is displayed on if the left button is used. ' If (Button = RIGHT_BUTTON) And Menu_ViewSelection(MID_POPUP_MENU).Checked Then ' ' The X and Y coordintes passed to the TrackPopupMenu() API routine ' are Screen coordinates in pixels, not Form coordinates, so, the ' X and Y coordinates of the Mouse must be adjusted, taking into ' account the position of the form. And for a little more added ' convience, another adjustment is made so when the menu pops up, ' the mouse poiner is directly over the currently selected tool. ' InPixels = ScaleWidth ScaleMode = TWIPS TwipsToPixels = ScaleWidth \ InPixels Borders = (Width - ScaleWidth) TitleBarAndMenu = (Height - ScaleHeight - Borders) IX = X + (Left \ TwipsToPixels) IY = Y + (Top + TitleBarAndMenu - CurrentTool * (TitleBarAndMenu \ 2)) \ TwipsToPixels ScaleMode = pixels Menu_ToolsSelection(CurrentTool).Checked = True R = TrackPopupMenu(GetSubMenu(GetMenu(hwnd), 3), 0, IX, IY, 0, hwnd, 0) End If End Sub ' Resizing of the Editor can, depending on the new size, force any ' of the palettes to be hidden, so all major controls must be ' resized, repositioned and possibly hidden in reponse to resizing ' the Editor. Sub Form_Resize () Static LastWindowState ' Nothing is done if the Editor is minimized. ' If WindowState = MINIMIZED Then ' ' Hide ColorPalette since it should not be visible while the ' Editor is Minimized. ' If ColorPaletteLoaded Then ColorPalette.Hide ElseIf ScaleHeight >= 34 Then ' ' Hide the Editing area while resizing other controls ' to prevent uneccessary repaints. ' Pic_Edit.Visible = False ' Adjust all major controls ' Adjust_Status_Bar Adjust_Tool_Palette Adjust_Color_Palette Adjust_ScrollBar ' Hide or Show the major controls, based on their corresponding View ' menu item Checked value, which was set within the above *Adjust* ' routines. ' Pic_ColorPalette.Visible = Menu_ViewSelection(MID_COLOR_PALETTE).Checked Pic_ToolPalette.Visible = Menu_ViewSelection(MID_TOOL_PALETTE).Checked Pic_StatusArea.Visible = Menu_ViewSelection(MID_STATUS_BAR).Checked Scrl_Zoom.Visible = Menu_ViewSelection(MID_ZOOM_SCROLLBAR).Checked If (LastWindowState = MINIMIZED) And ColorPaletteLoaded Then ColorPalette.Show End If LastWindowState = WindowState End Sub ' Editor is being terminated Sub Form_Unload (Cancel As Integer) ' Check fo any icons that have been modified since they ' were last saved. ' Text = "" For I = 0 To 5 If IconInfo(I).Changed Then Text = Text + "Icon #" + Right$(Menu_IconsSelection(I).Caption, Len(Menu_IconsSelection(I).Caption) - 1) + CRLF Next I If Text <> "" Then ' ' One or more icons were changed, so prompt user. ' Text = Text + CRLF + "The icons listed have not been saved since their last modification. Quit anyway?" Cancel = MsgBox(Text, 36, "ICONS HAVE CHANGED") = MBNO End If If Not Cancel Then ' ' User wants to terminate Editor, so clean up. ' EditorLoaded = False Unload ColorPalette R = DeleteDC(MonoHdc) R = DeleteObject(MonoHbm) R = WinHelp(hwnd, dummy$, HELP_QUIT, 0) Save_Settings_To_INI_File ' ' If Editor was started up first (Null command line or anything other than ' "v" or "V") then we treat it as the main Form. So, if the Viewer is loaded, ' we should as the user if the Viewer should also be terminated. ' If (MainForm = ICONWORKS_EDITOR) And ViewerLoaded Then ' ' Editor was started first and the Viewer is loaded so ask the user ' if the Viewer should also be terminated. ' Text = "Terminate Viewer also?" If MsgBox(Text, 36, "IconWorks") = MBYES Then Unload Viewer MainForm = ICONWORKS_VIEWER End If End If End Sub ' In response to a MouseDown event in the Edit area, the first thing ' that must be done is deterine what color to use when drawing the object. Sub Get_Current_Colors (Button As Integer) ' Determine which of the 4 currently selected colors to use, and ' assign to the Edit area's foreground color. Index = Opt_Mouse(SCREEN_COLORS).Value * (-2) + Button - 1 Pic_Edit.ForeColor = MouseColors(Index) ' If using the Paint tool, we must use the Neaest Solid color to the selected color. If CurrentTool = TID_PAINT Then Pic_Edit.ForeColor = GetNearestColor(hDC, Pic_Edit.ForeColor) If Opt_Mouse(MOUSE_COLORS).Value Then Pic_Image.ForeColor = Pic_Edit.ForeColor Else Pic_Image.ForeColor = (Button = RIGHT_BUTTON) And WHITE End If Pic_Mask.ForeColor = Opt_Mouse(SCREEN_COLORS).Value And WHITE Pic_Image.FillColor = Pic_Image.ForeColor Pic_Mask.FillColor = Pic_Mask.ForeColor Pic_Edit.FillColor = Pic_Edit.ForeColor End Sub ' This routine is called to read the color value strings from ' the IconWrks.INI file, and then have The values extracted Sub Get_INI_File_Colors () ColorString = Space$(144) R = GetPrivateProfileString(APP_NAME, KEY_COLOR + "1", DEFAULT_COLORS_ROW1, ColorString, Len(ColorString), INI_FILENAME) Extract_Colors_From_String ColorString, 0, False R = GetPrivateProfileString(APP_NAME, KEY_COLOR + "2", DEFAULT_COLORS_ROW2, ColorString, Len(ColorString), INI_FILENAME) Extract_Colors_From_String ColorString, 16, False R = GetPrivateProfileString(APP_NAME, KEY_COLOR + "3", DEFAULT_COLORS_ROW3, ColorString, Len(ColorString), INI_FILENAME) Extract_Colors_From_String ColorString, 32, True End Sub ' This routine is called only once, which is at load time to obtain ' all settings saved to the IconWrks.INI file. Sub Get_INI_File_Settings () Menu_ViewSelection(MID_STATUS_BAR).Checked = -GetPrivateProfileInt(APP_NAME, KEY_STATUS_BAR, 1, INI_FILENAME) Menu_ViewSelection(MID_TOOL_PALETTE).Checked = -GetPrivateProfileInt(APP_NAME, KEY_TOOL_PALETTE, 1, INI_FILENAME) Menu_ViewSelection(MID_COLOR_PALETTE).Checked = -GetPrivateProfileInt(APP_NAME, KEY_COLOR_PALETTE, 1, INI_FILENAME) Menu_ViewSelection(MID_ZOOM_SCROLLBAR).Checked = -GetPrivateProfileInt(APP_NAME, KEY_ZOOM_SCROLLBAR, 1, INI_FILENAME) Menu_ViewSelection(MID_GRID).Checked = -GetPrivateProfileInt(APP_NAME, KEY_GRID, 0, INI_FILENAME) Menu_ViewSelection(MID_LINE_GRID).Checked = -GetPrivateProfileInt(APP_NAME, KEY_LINE_GRID, 1, INI_FILENAME) Menu_ViewSelection(MID_DOTTED_GRID).Checked = -GetPrivateProfileInt(APP_NAME, KEY_DOTTED_GRID, 0, INI_FILENAME) Menu_ViewSelection(MID_FOCUS).Checked = -GetPrivateProfileInt(APP_NAME, KEY_FOCUS, 1, INI_FILENAME) Menu_ViewSelection(MID_BORDER).Checked = -GetPrivateProfileInt(APP_NAME, KEY_BORDER, 1, INI_FILENAME) Menu_ViewSelection(MID_POPUP_MENU).Checked = -GetPrivateProfileInt(APP_NAME, KEY_POPUP, 1, INI_FILENAME) ' Get all Checked Color Menu item values Menu_ColorSelection(MID_DEFAULT_COLORS).Checked = -GetPrivateProfileInt(APP_NAME, KEY_DEFAULT, 1, INI_FILENAME) Menu_ColorSelection(MID_SOLID_COLORS).Checked = -GetPrivateProfileInt(APP_NAME, KEY_SOLID, 0, INI_FILENAME) Menu_ColorSelection(MID_INI_COLORS).Checked = -GetPrivateProfileInt(APP_NAME, KEY_INI, 0, INI_FILENAME) ' Enable or Disable the Grid type menu items based on the Check value Menu_ViewSelection(MID_LINE_GRID).Enabled = Menu_ViewSelection(MID_GRID).Checked Menu_ViewSelection(MID_DOTTED_GRID).Enabled = Menu_ViewSelection(MID_GRID).Checked ' Set initial color palette If Menu_ColorSelection(MID_DEFAULT_COLORS).Checked Then Index = MID_DEFAULT_COLORS If Menu_ColorSelection(MID_SOLID_COLORS).Checked Then Index = MID_SOLID_COLORS If Menu_ColorSelection(MID_INI_COLORS).Checked Then Index = MID_INI_COLORS Menu_ColorSelection_Click Index End Sub ' In response to an Edit.Invert menu item selection, this routine ' Inverts the Colors of the selection region. Using a DrawMode ' of INVERSE, a filled box is drawn over the selected region, which ' inverts the colors. Sub Invert_Selection () Pic_TempImage.DrawMode = INVERSE Pic_Work.DrawMode = INVERSE ' Invert Selected Region. Do not need to Invert Mask. Pic_TempImage.Line (X1SelectFrom, Y1SelectFrom)-(X2SelectFrom, Y2SelectFrom), , BF Pic_Work.Line (X1SelectFrom, Y1SelectFrom)-(X2SelectFrom, Y2SelectFrom), , BF Pic_TempImage.DrawMode = COPY_PEN Pic_Work.DrawMode = COPY_PEN If MovingSelection Then Draw_Selection_Rectangle Else Commit_Selection False Magnify_Icon X1SelectFrom, Y1SelectFrom, (X2SelectFrom), (Y2SelectFrom) End Sub ' Once an object, Line, Square, Filled Square, Circle, or Filled Circle ' has been size to what the user wants, this routine is called from the ' MouseUp event for the Editing area (Pic_Edit) to display the actual ' object. Sub Line_To_Filled_Circle_MouseUp (X1, Y1, X2, Y2) Pic_Image.DrawWidth = BrushSize Pic_Mask.DrawWidth = BrushSize If CurrentTool = TID_FILLED_SQUARE Or CurrentTool = TID_FILLED_CIRCLE Then Pic_Image.FillStyle = Solid Pic_Mask.FillStyle = Solid End If ' Scale the dimensions of the object from the Editing area down ' to that of the Icon, 32x32. Scale_Region True, X1, Y1, X2, Y2, False Select Case CurrentTool Case TID_LINE Pic_Image.Line (X1, Y1)-(X2, Y2) ' ' Draw end-point only if BrushSize is one Pixel If BrushSize = 1 Then Pic_Image.PSet (X2, Y2) Pic_Mask.Line (X1, Y1)-(X2, Y2) If BrushSize = 1 Then Pic_Mask.PSet (X2, Y2) Case TID_SQUARE, TID_FILLED_SQUARE Pic_Image.Line (X1, Y1)-(X2, Y2), , B Pic_Mask.Line (X1, Y1)-(X2, Y2), , B Case TID_CIRCLE, TID_FILLED_CIRCLE If Valid_Circle(X1, Y1, X2, Y2) Then Pic_Image.Circle (XCenter, YCenter), Radius, , , , Aspect Pic_Mask.Circle (XCenter, YCenter), Radius, , , , Aspect Radius = 0 End If End Select If X1 > X2 Then Swap_Values X1, X2 If Y1 > Y2 Then Swap_Values Y1, Y2 Pic_Image.DrawWidth = 1 Pic_Mask.DrawWidth = 1 Pic_Image.FillStyle = TRANSPARENT Pic_Mask.FillStyle = TRANSPARENT ' Only the area modified is redisplayed, which is the rectangle ' defined by the values of X1, Y1, X2, Y2. If the Brushsize is ' greater than 1 pixel, then the actual area modified is slightly ' larger than the this rectangle, so the values X1, Y1, X2, Y2 ' must be adjusted to include the thickness of the Brushsize so ' the entire area modified is redisplayed. ' If (BrushSize > 1) And (CurrentTool >= TID_LINE) Then Adjustment = BrushSize \ 2 X1 = X1 - Adjustment - 1 Y1 = Y1 - Adjustment - 1 X2 = X2 + Adjustment + 1 Y2 = Y2 + Adjustment + 1 End If End Sub ' For the Line, Square, Filled Square, Circle, and Filled Circle Tools, ' an Inverted resizeable version of the object is displayed in response ' to a MouseMove. The object is anchored at the point set by the MouseDown ' event within the Editing area. This routine is called to erase the ' old object and display the new object during a MouseMove event. Sub Line_To_Filled_Circle_Tool_Move (Shift As Integer, X As Single, Y As Single) Static LastCircleGood ' Erase Old object ' Draw_Line_Or_Box If (CurrentTool >= TID_CIRCLE) And LastCircleGood Then Pic_Edit.Circle (XCenter, YCenter), Radius, , , , Aspect Adjust_X_and_Y X, Y, X2Region, Y2Region, TO_CENTER ' Holding the Shift key down forces a perfect Square or Circle. ' For a line, it forces either a Horizontal, Vertical or 45 degree ' line to be displayed. ' If Shift And SHIFT_MASK Then Make_Region_Square If CurrentTool >= TID_CIRCLE Then ' ' When sizing a circle, a rectangle with the circle displayed ' within the circle is drawn. This is done to give a better ' feeling that the mouse is attached to the object when sizing. ' The rectanle is not drawn one the mouse is released. ' LastCircleGood = Valid_Circle(X1Region, Y1Region, X2Region, Y2Region) If LastCircleGood Then Pic_Edit.Circle (XCenter, YCenter), Radius, , , , Aspect End If ' Draw New Object ' Draw_Line_Or_Box End Sub ' To make creating a perfect Square, Circle, or a Diagonal, Vertical, ' or Horizontal line, the routine is called whenever the Shift key ' is depressed in conjuction to dragging the Mouse within the Editing ' area. This routine adjusts the actual mouse coordinates so that ' the displayed object is Square, or in the case of a line, Diagonal, ' Vertical, or Horizontal. Sub Make_Region_Square () Xside = Abs(X2Region - X1Region) Yside = Abs(Y2Region - Y1Region) If Xside > Yside Then RectSide = Xside Else RectSide = Yside X2Region = X1Region + RectSide * Sgn(X2Region - X1Region) Y2Region = Y1Region + RectSide * Sgn(Y2Region - Y1Region) End Sub ' Changes size of brush to either 1x1, 3x3, or 5x5, and ' Checks the corresponding Bush menu item Sub Menu_BrushSelection_Click (Index As Integer) Menu_BrushSelection(BrushSize).Checked = False Menu_BrushSelection(Index).Checked = True BrushSize = Index End Sub ' Processes all Color Menu selections. Sub Menu_ColorSelection_Click (Index As Integer) Select Case Index Case MID_COLORS ' ' Invoke Custom ColorPalette form ' ColorIndex = 0 ColorPalette.Show Case MID_DEFAULT_COLORS ' ' Default color palette is the same colors as the VB colorpalette ' Extract_Colors_From_String DEFAULT_COLORS_ROW1, 0, False Extract_Colors_From_String DEFAULT_COLORS_ROW2, 16, False Extract_Colors_From_String DEFAULT_COLORS_ROW3, 32, True Case MID_SOLID_COLORS ' ' Solid colors are the 16 colors returned from QBColors() ' Menu_ColorSelection(MID_SOLID_COLORS).Checked = True Show_Solid_Colors_Only Case MID_INI_COLORS ' ' If there are Colors saved to the INI file, they will ' be displayed, otherwise, the Default colors will be displayed ' Menu_ColorSelection(MID_INI_COLORS).Checked = True Get_INI_File_Colors Case MID_SAVE_COLORS Save_Colors_To_INI_File Case MID_LEFT_RIGHT, MID_SCREEN_INVERSE ' ' Same functionality as clicking either of the Mouse Option buttons ' Opt_Mouse(Index - MID_LEFT_RIGHT).Value = True End Select ' If the selection was 1 of the 3 colorpalette selections, Check ' the current selection, and Uncheck the previous selection. ' If (Index >= MID_DEFAULT_COLORS) And (Index <= MID_INI_COLORS) Then Menu_ColorSelection(MID_DEFAULT_COLORS).Checked = (Index = MID_DEFAULT_COLORS) Menu_ColorSelection(MID_SOLID_COLORS).Checked = (Index = MID_SOLID_COLORS) Menu_ColorSelection(MID_INI_COLORS).Checked = (Index = MID_INI_COLORS) End If End Sub ' Prepares the Edit menus Sub menu items, by Enabling or Disabling ' the menu items depending on whether there is a current selection ' or if the current selection is being moved, and the current format ' of the system ClipBoard. Sub Menu_Edit_Click () Menu_EditSelection(MID_CUT).Enabled = Selecting And Not MovingSelection Menu_EditSelection(MID_COPY).Enabled = Selecting And Not MovingSelection Menu_EditSelection(MID_PASTE).Enabled = Clipboard.GetFormat(CF_BITMAP) Menu_EditSelection(MID_PASTE_OPAQUE).Enabled = Clipboard.GetFormat(CF_BITMAP) Menu_EditSelection(MID_DELETE).Enabled = Selecting And Not MovingSelection Menu_EditSelection(MID_FLIP_HORIZONTAL).Enabled = Selecting Menu_EditSelection(MID_FLIP_VERTICAL).Enabled = Selecting Menu_EditSelection(MID_ROTATE_LEFT).Enabled = Selecting And (Not MovingSelection) And ((X2Region - X1Region) = (Y2Region - Y1Region)) Menu_EditSelection(MID_ROTATE_RIGHT).Enabled = Selecting And (Not MovingSelection) And ((X2Region - X1Region) = (Y2Region - Y1Region)) Menu_EditSelection(MID_INVERT).Enabled = Selecting End Sub ' Processes all Edit Menu selections. Sub Menu_EditSelection_Click (Index As Integer) Select Case Index Case MID_UNDO UnDo_Edits Case MID_CUT, MID_COPY, MID_DELETE Cut_Copy_Or_Delete_Selection Index Case MID_PASTE, MID_PASTE_OPAQUE Paste_ClipBoard_Contents Index Case MID_SELECT_All Select_Entire_Icon Case MID_FLIP_HORIZONTAL, MID_FLIP_VERTICAL Flip_Selection Index Case MID_ROTATE_RIGHT, MID_ROTATE_LEFT Rotate_Selection Index Case MID_INVERT Invert_Selection End Select End Sub ' Processes all File Menu selections. Sub Menu_FileSelection_Click (Index As Integer) Select Case Index Case MID_NEW Prepare_For_New_Icon Case MID_OPEN Viewer.Show MODELESS Case MID_SAVE, MID_SAVE_AS Save_Icon Index Case MID_EXIT Unload Editor End Select End Sub ' Processes all Help Menu selections. Sub Menu_HelpSelection_Click (Index As Integer) If Index = MID_ABOUT Then AboutBox.Show MODAL Else Get_Help Index End If End Sub ' Processes all Icons Menu selections. Same as clicking ' one of the Icons within the StatusArea. Sub Menu_IconsSelection_Click (Index As Integer) Pic_Icons_MouseDown Index, LEFT_BUTTON, 0, 0, 0 End Sub ' Prepares for the Tools sub menu to be shown, by Checking ' the currently selected tool. Sub Menu_Tools_Click () Menu_ToolsSelection(CurrentTool).Checked = True End Sub ' Processes all Tools Menu selections. Same as clicking any ' tool within the ToolPalette Sub Menu_ToolsSelection_Click (Index As Integer) Pic_ToolPalette_MouseDown LEFT_BUTTON, 0, 0, Index * 32 End Sub ' Processes all View Menu selections. Sub Menu_ViewSelection_Click (Index As Integer) Select Case Index Case MID_STATUS_BAR, MID_TOOL_PALETTE, MID_COLOR_PALETTE, MID_ZOOM_SCROLLBAR, MID_FOCUS, MID_BORDER, MID_POPUP_MENU Menu_ViewSelection(Index).Checked = Not Menu_ViewSelection(Index).Checked If Index = MID_BORDER Then HighLight_Current_Icon ElseIf Index < MID_FOCUS Then ' ' Must process a From_Resize to make the Above selection ' take affect since all hiding and showing of palettes is ' done within the Form_Resize event. ' Form_Resize End If Case MID_SHOW_ALL For I = 0 To 3 Menu_ViewSelection(I).Checked = True Next I Form_Resize Case MID_GRID Activate_Grid Case MID_LINE_GRID, MID_DOTTED_GRID Select_Grid_Type Index Case MID_ZOOM_IN Scrl_Zoom.Value = Scrl_Zoom.Value + 32 Case MID_ZOOM_OUT Scrl_Zoom.Value = Scrl_Zoom.Value - 32 End Select If ((Index = MID_STATUS_BAR) Or (Index = MID_SHOW_ALL)) And Menu_ViewSelection(MID_STATUS_BAR).Checked Then Display_Color_Palette Pic_ColorPalette End Sub ' One of the Mouse Button Options Buttons was selected, so update ' the corresponding Color menu items Checked value. Sub Opt_Mouse_Click (Index As Integer) Menu_ColorSelection(MID_LEFT_RIGHT).Checked = Not (-Index) Menu_ColorSelection(MID_SCREEN_INVERSE).Checked = -Index End Sub ' The paint tools is the only tool that paints directly to the ' Editing area during the MouseMove event. This routine draws ' the pixels to the Icons Image and Mask, and to the Editing area, ' so, there is no need to redisplay teh modified area of the Icon ' in response to a MouseUp event. However, the StatusArea Icon ' will not display the modificatioin until a MouseUp event. Sub Paint_Tool_Move (Xpix, Ypix) ' Adjust Mouse position so it is centered within the Pixel being ' drawn. ' Adjustment = BrushSize \ 2 X1 = Xpix - Adjustment Y1 = Ypix - Adjustment X2 = Xpix + Adjustment Y2 = Ypix + Adjustment ' Draw pixel on Icons Image and Mask ' Pic_Image.Line (X1, Y1)-(X2, Y2), , BF Pic_Mask.Line (X1, Y1)-(X2, Y2), , BF ' Draw pixel on Editing area ' X2 = X2 + 1 Y2 = Y2 + 1 Pic_Edit.Line (X1 * PixelSize, Y1 * PixelSize)-(X2 * PixelSize - 1, Y2 * PixelSize - 1), , BF ' Redisplay Grid in modified area if Grid is selected. ' If Menu_ViewSelection(MID_GRID).Checked Then Display_Grid (Pic_Edit.hDC), X1, Y1, X2, Y2 End Sub ' In response to an Edit.Paste or Edit.Paste Opaque, this routine is called ' to perform the acutal paste operation. There are two forms of the Paste: ' Paste Shift+Ins: Creates a Mask from the bitmap in the clipboard ' based on the current Screen Color selected. All ' Pixels in the Bitmap that match the Screen Color ' become transparent. ' Paste Opaque Ctrl+Shift+Ins: No mask is created from the bitmap and ' It is pasted as is with no Screen Color attributes. Sub Paste_ClipBoard_Contents (Index) ' Get Bitmap from System Clipboard ' Pic_Work.Picture = Clipboard.GetData(CF_BITMAP) ' Determine if Bitmap is too large to paste. Must be 32x32 pixels or ' smaller. ' If Pic_Work.Width <= 32 And Pic_Work.Height <= 32 Then ' ' Change tool selection to SelectTool, which will allow us to ' move the Bitmap being pasted to anywhere within the Icon. ' Pic_ToolPalette_MouseDown LEFT_BUTTON, 0, 0, TID_SELECT * 32 Pic_TempImage.Picture = Pic_Work.Image Opaque = MID_PASTE - Index If Opaque Then ' An Opaque paste, so the Bitmap is pasted as is. So we simply create ' a solid Black mask. ' Pic_TempMask.Line (0, 0)-(Pic_TempMask.ScaleWidth, Pic_TempMask.ScaleHeight), BLACK, BF Else ' A normal paste, so a Mask must be created from the Bitmap being pasted, ' based on the currently selected Screen color. The Mask is created, by ' BitBlt'ing the the 16-color bitmap to a mono Hdc. All pixels in the color ' bitmap which are the screen color will be white in the monochrome bitmap, ' all others will be black. That is why the Backcolor of the Picture control ' containing the bitmap is first set to the currently selected Screen color. ' This Monochrome bitmap is then BitBlt'd back to a 16-Color Picture control ' so we can easily manipulate it. ' Pic_Work.BackColor = MouseColors(2) R = BitBlt(MonoHdc, 0, 0, Pic_Work.Width, Pic_Work.Height, Pic_Work.hDC, 0, 0, SRCCOPY) R = BitBlt(Pic_TempMask.hDC, 0, 0, Pic_Work.Width, Pic_Work.Height, MonoHdc, 0, 0, SRCCOPY) ' Once the Mask is created, all the pixels in the Image bitmap which are of ' currently selected screen color must be changed to Black. To do this we ' Logically AND the Mask created above with the Image bitmap. This has the ' affect of turning all pixels which are not the screen color to Black, leaving ' screen color pixels unaffected. We then XOR the image with this result, which ' gives us the desired result of all screen color pixels of the origianl ' bitmap going to Black, all other pixels are unaffected. ' R = BitBlt(Pic_TempImage.hDC, 0, 0, Pic_Work.Width, Pic_Work.Height, Pic_TempMask.hDC, 0, 0, SRCAND) R = BitBlt(Pic_TempImage.hDC, 0, 0, Pic_Work.Width, Pic_Work.Height, Pic_Work.hDC, 0, 0, SRCINVERT) End If If (Pic_Work.Width = 32) And (Pic_Work.Height = 32) Then ' Bitmap Pasted is too large to allow it to be moved, so we ' commit the Bitmap to the Icon with out allowing it to be ' moved, and then redisplay the Icon. ' Scale_Region False, 0, 0, 32, 32, False Scale_Region True, X1SelectFrom, Y1SelectFrom, X2SelectFrom, Y2SelectFrom, False Commit_Selection True Magnify_Icon 0, 0, 31, 31 Else ' The Bitmap pasted can be moved, so go into Move mode by setting ' the appropriate flags. ' Selecting = True Moveable = True MovingSelection = True ' Set the Selection Region to the size of the Bitmap pasted, in ' both the scale of the Icon and the Magnified Icon. ' Scale_Region False, 0, 0, (Pic_Work.Width), (Pic_Work.Height), False Scale_Region True, X1SelectFrom, Y1SelectFrom, X2SelectFrom, Y2SelectFrom, True Scale_Region True, LastX1, LastY1, LastX2, LastY2, True ' Redisplay Icon. Passing a values of 0,0,0,0 simply force the Magnify_Icon ' routine to magnify the pasted Bitmap over the top of the magnified Icon. ' Magnify_Icon 0, 0, 0, 0 End If Else ' Bitmap was too large to paste, so prompt the user. ' Pic_Work.Picture = LoadPicture() MsgBox "ClipBoard image is too large: " + Format$(Pic_Work.Width) + " x " + Format$(Pic_Work.Height) + CRLF + "Image not pasted", 16, "Error" End If End Sub ' ColorPalette operations are performed on the MouseUp event, ' and DoubleClicking the ColorPalette invokes the Custom ' color ColorPalette Form so a flag must be set to inform the ' MouseUp event to invoke the Custom ColorPalette form. Sub Pic_ColorPalette_DblClick () DoubleClicked = True End Sub ' Checks if Mouse Coordinates are within the ColorPalette, since the mouse ' could have been dragged outside of the ColorPalette between the MouseDown ' and MouseUp events, in which case the ColorPalette would still get the ' MouseUp event with coordinates outside the actual ColorPalette which would ' generate and error when accessing the Color Array. Sub Pic_ColorPalette_MouseUp (Button As Integer, Shift As Integer, X As Single, Y As Single) If (X >= 0) And (X <= 16) And (Y >= 0) And (Y <= 3) Then Update_Mouse_Colors Button, X, Y End Sub Sub Pic_ColorPalette_Paint () Display_Color_Palette Pic_ColorPalette End Sub ' If the Icon dropped is from the Viewer, it is loaded into the ' currently selected Icon, otherwise nothing is done. Sub Pic_Edit_DragDrop (Ctl As Control, X As Single, Y As Single) If Ctl.Parent.Tag <> Editor.Tag Then Load_An_Icon End Sub ' If the Icon being dragged is from the Viewer and it has just entered ' or left the Edit area, invert the Edit area. Sub Pic_Edit_DragOver (Ctl As Control, X As Single, Y As Single, State As Integer) If (Ctl.Parent.Tag <> Editor.Tag) And (State <> OVER) Then Invert_Control Pic_Edit End Sub ' A MouseDown event in the Editing area signals the beginning of a new ' Tool operation if a tool operation is not already in progress. All ' preparation for the Tool operation is performed here, within the ' MouseDown event. Sub Pic_Edit_MouseDown (Button As Integer, Shift As Integer, X As Single, Y As Single) ' Propare for Tool operation only if there is not an operation already in ' progress, and only one mouse button is down, Left or Right. ' If (ToolInProcess = 0) And ((Button = LEFT_BUTTON) Or (Button = RIGHT_BUTTON)) Then ' ' Save Button value that started Tool Operation. ' ToolInProcess = Button Get_Current_Colors Button Pic_Edit.DrawStyle = Solid If CurrentTool = TID_PAINT Then ' ' Begin a Paint tool operation. ' Pic_Edit.DrawMode = COPY_PEN ' So a pixel is drawn in repsonse to just a Click within the editing ' area, the MouseMove event must be called since all the actual ' drawing to the Editing area for the Paint Tool is done within the ' MouseMove event. ' Pic_Edit_MouseMove Button, 0, X, Y ElseIf CurrentTool <> TID_FILL Then ' ' Prepare for all other tools other than Fill and Paint tools. ' Pic_Edit.DrawMode = INVERSE If CurrentTool = TID_SELECT Then Adjustment = TO_EDGE Else Adjustment = TO_CENTER ' Determine if a Selection is in process, the Selection can be moved, ' and whether the MousePointer is within the current selection. ' If Selecting And Moveable And ((X >= X1Region) And (X <= X2Region) And (Y >= Y1Region) And (Y <= Y2Region)) Then ' ' The selection is moveable and the MousePointer is within the ' selection. So prepare for a move. ' Adjust_X_and_Y X, Y, XMoveSelection, YMoveSelection, Adjustment If Button = RIGHT_BUTTON Then Opaque = True Else Opaque = False If Not MovingSelection Then ' ' The selection has not yet been moved from its original ' position, so prepare to move selection. ' ' If the Shift key is down, then the a copy of the Selection ' will be moved, otherwise the selection will be move from ' its current location so its previous location must be deleted. ' If (Shift And SHIFT_MASK) = 0 Then Delete_Selection_From_Icon Draw_Selection_Rectangle MovingSelection = True Draw_Selection_Rectangle ElseIf (Shift And SHIFT_MASK) Then ' ' The selection has already been moved from its original ' location and is being moved again. If the Shift key is ' down, make a copy of the selection at its current location ' and continue the move. ' Commit_Selection False Draw_Selection_Rectangle End If Else ' ' No selection is in progress, or a selection is in progress ' but the MousePointer is not within the current selection, ' or a tool other than the Select tool is in use. ' ' If a Selection is in progress, commit the Selection at its ' current location. ' If Selecting Then Commit_Selection True ' Prepare for new Tool operation ' Opaque = True Adjust_X_and_Y X, Y, X1Region, Y1Region, Adjustment X2Region = X1Region Y2Region = Y1Region End If End If End If End Sub ' For all tools except for the Paint tool and Fill tool, the MouseMove ' event is used to size the object to be drawn. The actual object is ' drawn within the MouseUp event based on the coodinates obtained here ' in the MouseMove event. The Paint tool, however, does all of its ' actual drawing to the Editing area within the MouseMove event. The ' Fill tool does nothing until the MouseUp event. Sub Pic_Edit_MouseMove (Button As Integer, Shift As Integer, X As Single, Y As Single) ' Calculate pixel mouse is currently over. ' Xpix = X \ PixelSize Ypix = Y \ PixelSize ' The Mouse coordinates are always displayed within the StatusArea ' Display_Mouse_Coordinates Xpix, Ypix ' Depending on the Current tool, and in the case of the Select tool, ' the state of the Selection, the MousePointer may change. ' Set_MousePointer X, Y ' We only want to process the MouseMove event if the Button causing ' the MouseMove event is the same that started the operation. ' The value of the Button that started the operation is stored in ' the global variable ToolInProcess which is set in the MouseDown event. ' If (Button = ToolInProcess) And (ToolInProcess <> 0) Then Select Case CurrentTool Case TID_SELECT Select_Tool_Move Shift, X, Y Case TID_PAINT Paint_Tool_Move Xpix, Ypix Case TID_LINE To TID_FILLED_CIRCLE Line_To_Filled_Circle_Tool_Move Shift, X, Y End Select End If End Sub ' For all tools except for the Paint tool, the actual object drawn ' is not drawn until the Mouse Button is released, which is within ' the the edit areas MouseUp event. Sub Pic_Edit_MouseUp (Button As Integer, Shift As Integer, X As Single, Y As Single) ' There is no operation that occurs with both mouse buttons down, ' so check to make sure that the MouseUp event is due to the release ' of the same button that started the drawing operation. The global ' variable ToolInProcess holds the value of the Button. ' If Button = ToolInProcess Then Pic_Edit.DrawMode = COPY_PEN Select Case CurrentTool Case TID_SELECT Select_Tool_MouseUp X1, Y1, X2, Y2 Case TID_FILL Fill_Tool_MouseUp X, Y, X2, Y2 Case TID_LINE To TID_FILLED_CIRCLE Line_To_Filled_Circle_MouseUp X1, Y1, X2, Y2 End Select ' The Icon needs to be updated to show the affect of the ' Tool operation for all tools except for the Select tool if ' just making a selection, since all that occurs is a Rectangle ' showing the selection is drawn. ' If Not ((CurrentTool = TID_SELECT) And (Not MovingSelection)) Then Update_Icon Pic_Icons(CurrentIcon) ' ' Redisplay the Icon for all tools except for the Paint tool. ' The paint tool draws directly on the Edit area within the ' MouseMove event. ' If SeletedTool <> TID_PAINT Then Magnify_Icon X1, Y1, X2, Y2 End If ToolInProcess = False ' Set enabled state of Edit Menu items. ' Menu_Edit_Click End If End Sub Sub Pic_Edit_Paint () ' Repaint Edit area Magnify_Icon 0, 0, 31, 31 End Sub ' If the Icon dropped is from the Viewer, it is loaded into the ' StatusArea Icon on which is was dropped and that icon is made ' the current Icon, otherwise nothing is done. Sub Pic_Icons_DragDrop (Index As Integer, Ctl As Control, X As Single, Y As Single) If Ctl.Parent.Tag <> Editor.Tag Then CurrentIcon = Index Load_An_Icon End If End Sub ' If the Icon being dragged is from the Viewer and it has just entered ' or left one of the StatusArea Icons, invert the StatusArea icon. Sub Pic_Icons_DragOver (Index As Integer, Ctl As Control, X As Single, Y As Single, State As Integer) If (Ctl.Parent.Tag <> Editor.Tag) And (State <> OVER) Then Invert_Control Pic_Icons(Index) Pic_Icons(Index).Refresh End If End Sub ' Clicking on any of the icons within the StatusArea, makes that ' Icon the current Icon. If the the Icon is already the current ' Icon, and selection currently in progress is canceled, and ' the Icon can be dragged to test what it looks like begin dragged. ' It cannot be dropped on anything. Sub Pic_Icons_MouseDown (Index As Integer, Button As Integer, Shift As Integer, X As Single, Y As Single) ' Determine if new Icon is being selected ' If (Button = LEFT_BUTTON) And (Index <> CurrentIcon) Then ' ' New Icon has been selected, so prepare for new Icon ' Menu_IconsSelection(CurrentIcon).Checked = False Menu_IconsSelection(Index).Checked = True If Selecting Then Commit_Selection True CurrentIcon = Index Select_New_Icon ElseIf (Button = LEFT_BUTTON) And (Index = CurrentIcon) Then ' ' The current Icon was selected. ' If Selecting Then ' ' A selection was in progress so cancel it. ' Draw_Selection_Rectangle Selecting = False MovingSelection = False Scale_Region True, X1, Y1, X2, Y2, True Magnify_Icon X1, Y1, X2, Y2 End If ' Set the DragIcon of the selected Icon, and begin dragging ' Pic_Icons(Index).DragIcon = Pic_Icons(Index).Picture Pic_Icons(Index).Drag End If End Sub ' Although the StatusArea appears as though it contains many controls ' it actually contains only 7 picture controls and 2 Option buttons. ' The rest of the information displayed within the StatusArea is painted ' directly onto the StatusArea. This is done to limit the actual number ' of controls on the Editor. The more controls, the more System resources ' it uses and the longer it takes to load. It may be easier to display ' certain data using controls, but in some cases, its benificial to not ' use controls but display the information yourself. The easiest controls ' to eliminate are Labels since they usually just display text and do ' not change throughout the life of the program, and the .Print method ' can be used to display the text instead of a label. Sub Pic_StatusArea_Paint () ' Calculate center of StatusArea ' Middle = Pic_StatusArea.ScaleWidth \ 2 ' Set font attributes for X & Y Mouse coodinate display ' Pic_StatusArea.FontName = "MS Sans Serif" Pic_StatusArea.FontSize = 8.25 Pic_StatusArea.ForeColor = BLACK ' Display X & Y mouse coordinate labels, "X=" and Y=" ' Pic_StatusArea.CurrentY = Pic_Icons(5).Top + Pic_Icons(5).Height + HIGHLIGHT + 1 Pic_StatusArea.CurrentX = (Middle - Pic_StatusArea.TextWidth("XXXX")) \ 2 Pic_StatusArea.Print "X="; Pic_StatusArea.CurrentX = Middle + (Middle - Pic_StatusArea.TextWidth("XXXX")) \ 2 Pic_StatusArea.Print "Y="; ' If the Undo Icon is visible, display its label, "Undo to:" ' If Pic_Undo.Visible Then Text = "Undo to:" Pic_StatusArea.CurrentX = (Pic_Undo.Left - Pic_StatusArea.TextWidth(Text)) \ 2 Pic_StatusArea.CurrentY = Pic_Undo.Top + ((Pic_Undo.Height - Pic_StatusArea.TextHeight(Text)) \ 2) Pic_StatusArea.Print "Undo to:" End If ' If the Mouse Option buttons are visible, then display the the ' option button Color labels and the colors themselves. The labels are ' all based on the positions of the two Option buttons, so it they ' are moved at design time, the labels will still be displayed ' correctly. ' If Opt_Mouse(0).Visible Then ' ' Display Mouse Butons header label within a White box with a Black ' outline. ' Text = "Mouse Buttons" Y1 = Opt_Mouse(0).Top - 1.25 * Opt_Mouse(0).Height Pic_StatusArea.Line (0, Y1)-(Pic_StatusArea.ScaleWidth, Y1 + Pic_StatusArea.TextHeight(Text)), WHITE, BF Pic_StatusArea.Line (0, Y1)-(Pic_StatusArea.ScaleWidth - 1, Y1 + Pic_StatusArea.TextHeight(Text)), BLACK, B Pic_StatusArea.CurrentX = (Pic_StatusArea.ScaleWidth - Pic_StatusArea.TextWidth(Text)) \ 2 Pic_StatusArea.CurrentY = Y1 Pic_StatusArea.FontTransparent = True Pic_StatusArea.Print Text Pic_StatusArea.FontBold = False ' Display the Mouse Button color labels, centered on either ' side of the Option buttons. ' For I = 0 To 3 Select Case I Case 0 Text = "Left" Case 1 Text = "Right" Shift = Middle Case 2 Text = "Screen" Shift = 0 Case 3 Text = "Inverse" Shift = Middle End Select Pic_StatusArea.CurrentX = Shift + (Middle - Pic_StatusArea.TextWidth(Text)) \ 2 Pic_StatusArea.CurrentY = Opt_Mouse(I \ 2).Top - Pic_StatusArea.TextHeight(Text) - 1 Pic_StatusArea.Print Text Next I ' Display the 4 color squares showing currently selected colors ' These could be picture controls. ' Display_Mouse_Colors End If ' Set StatusArea font attributes back to that of the Mouse coordinates. ' Pic_StatusArea.ForeColor = RED Pic_StatusArea.FontName = "Courier" Pic_StatusArea.FontBold = True Pic_StatusArea.FontTransparent = False HighLight_Current_Icon End Sub ' Performs a "Select All" opertation, just as though the Edit.Select all ' menu item was selected. Sub Pic_ToolPalette_DblClick () If CurrentTool = TID_SELECT Then Menu_EditSelection_Click MID_SELECT_All End Sub ' Prepare for a new tool. The actual Tool selection is done within ' the MouseMove event. Sub Pic_ToolPalette_MouseDown (Button As Integer, Shift As Integer, X As Single, Y As Single) ' Commit and Selection currently being moved. ' If Selecting Then Commit_Selection True ' Commit all edits to Undo Icon ' Update_Icon Pic_Undo ' Remove Check from current tool in Tools menu ' Menu_ToolsSelection(CurrentTool).Checked = False ' Since the actual selection is done within the MouseMove event, and ' a MouseMove event does not occur until the mouse is moved within ' the ToolPalette, we need to call the MouseMove event, to ensure ' the selected tool is in fact selected, since just clicking on ' the ToolPalette does not generate a MouseMove event. ' Pic_ToolPalette_MouseMove Button, Shift, X, Y End Sub ' Moving the mouse within the ToolPalette after a MouseDown event, will select ' the tool the mouse is currently over, so you can slide up and down the palette, ' and the tool selection will follow the mouse. Sub Pic_ToolPalette_MouseMove (Button As Integer, Shift As Integer, X As Single, Y As Single) ' Calculate selected tool. Each tool Icon is 32 pixels high, so this ' is done easily by Integer dividing the Y coordinate by 32. ' NewTool = Y \ 32 ' Check to make sure the Mouse is within the Y limits of the ToolPalette ' and not over the currently selected tool. ' If (Button <> 0) And (NewTool >= TID_SELECT) And (NewTool <= TID_FILLED_CIRCLE) And (NewTool <> CurrentTool) Then ' ' UnHighlight current tool ' Pic_ToolPalette.Line (0, CurrentTool * 32 + 1)-(31, CurrentTool * 32 + 31), , BF ' Hightlight new tool ' Pic_ToolPalette.Line (0, NewTool * 32 + 1)-(31, NewTool * 32 + 31), , BF CurrentTool = NewTool End If End Sub Sub Pic_ToolPalette_MouseUp (Button As Integer, Shift As Integer, X As Single, Y As Single) ' Set Enabled state of all Edit menu options. ' Menu_Edit_Click End Sub ' The ToolPalette takes care of painting itself since it contains ' a single bitmap displaying the Tools. However, the currently ' selected Tool needs to be Hightlighted during the Paint event. Sub Pic_ToolPalette_Paint () ' Clear ToolPalette to background bitmap of Tools ' Pic_ToolPalette.Cls ' HightLight current tool. The Drawmode of the ToolPalette is ' set to INVERSE, so we simply draw a filled box over the current ' tool. This inverts the tool. ' Pic_ToolPalette.Line (0, CurrentTool * 32 + 1)-(31, CurrentTool * 32 + 31), , BF End Sub ' Clicking the Undo Icon in the StatusArea is the same thing as ' selecting the Edit.Undo menu item. Sub Pic_Undo_Click () Menu_EditSelection_Click MID_UNDO End Sub ' In response to a File.New menu opertation, this routine is called, ' to prepare creating a new Icon from scratch. Sub Prepare_For_New_Icon () ' Determine if current Icon has changed since it was saved last and ' and prompt user if it has been changed and not saved. ' If Ok_To_Discard_Changes() Then ' ' It is ok to prepare for new Icon. ' Terminate any Selection in progress and simulate a Select all, ' then perform an Edit.Delete operation to clear the Icon. ' Selecting = False MovingSelection = False Scale_Region False, 0, 0, 32, 32, False Menu_EditSelection_Click MID_DELETE ' Intialize the IconInfo record to default values ' IconInfo(CurrentIcon).FileName = UNTITLED IconInfo(CurrentIcon).Changed = False ' Reset both the Icon menu and the Editors Titlebar ' Menu_IconsSelection(CurrentIcon).Caption = "&" + Format$(CurrentIcon + 1) + " - " + UNTITLED Caption = "IconWorks Editor: " + Format$(CurrentIcon + 1) + " - " + UNTITLED End If End Sub ' Once a Selection has been made, or an Edit.Select All or Edit.Paste ' operation has been made, this routine is called to prepare for a ' potential movement of the Selection. A copy of the actual Icons ' Mask and Image are made, and this is the Source from which the ' Selection is display whenever the Selection is in fact moved. Sub Prepare_For_Possible_Move () Pic_Work.Picture = Pic_Icons(CurrentIcon).Image Pic_TempImage.Picture = Pic_Image.Image Pic_TempMask.Picture = Pic_Mask.Image End Sub ' When a selection has been made and the selection is Square, it may ' be rotated Left or Right by 90 degrees. Cannot Rotate a selection ' that is being moved. This routine performs the rotation in repsonse ' to an Edit.Rotate Left/Right menu operation. Sub Rotate_Selection (Index) ' Rotation is not instant, so set Cursor to HourGlass ' Screen.MousePointer = HOURGLASS ' Caculate size of Region ' NumPixels = X2SelectFrom - X1SelectFrom - 1 ' Perform rotation. The rotation is performed by reading one pixel at ' a time from the source and copying it to is new location in rotated ' either Left or Right 90 degrees. The Point Method reads the Pixel ' and the Pset method is used to write the pixel. Both the Icons ' Mask and Image must be rotated. ' For Y = 0 To NumPixels For X = 0 To NumPixels If Index = MID_ROTATE_RIGHT Then ' ' Rotate Right ' Pic_Image.PSet (X2SelectFrom - Y - 1, Y1SelectFrom + X), Pic_TempImage.Point(X1SelectFrom + X, Y1SelectFrom + Y) Pic_Mask.PSet (X2SelectFrom - Y - 1, Y1SelectFrom + X), Pic_TempMask.Point(X1SelectFrom + X, Y1SelectFrom + Y) Else ' Rotate Left ' Pic_Image.PSet (X1SelectFrom + Y, Y2SelectFrom - X - 1), Pic_TempImage.Point(X1SelectFrom + X, Y1SelectFrom + Y) Pic_Mask.PSet (X1SelectFrom + Y, Y2SelectFrom - X - 1), Pic_TempMask.Point(X1SelectFrom + X, Y1SelectFrom + Y) End If Next X Next Y ' Replace Icons Mask and Image with new Mask and Images. ' Update_Icon Pic_Icons(CurrentIcon) Prepare_For_Possible_Move ' Redisplay selected region to show rotation. ' Magnify_Icon X1SelectFrom, Y1SelectFrom, (X2SelectFrom), (Y2SelectFrom) ' Restore Cursor ' Screen.MousePointer = DEFAULT End Sub ' In response to a Color.Save colors to INI file menu operatioin, this ' routine is called to write the color values to IconWrks.INI. ' WritePrivateProfileString() will create the INI file if it does not ' exist, and will create the KeyName if it does not exist in the INI FILE. ' The Color values are packed into a single string, one row of colors at ' a time, and then written to the INI file. The colors are formated ' into 8-byte fields separated by one space. After this routine, ' IconWrks.INI will contain 3 key entries of: ' Colors Row1=16777215 14737632 ... ' Colors Row2=12632256 04210752 ... ' Colors Row3=08421504 00000000 ... Sub Save_Colors_To_INI_File () For I = 0 To 2 ColorString = "" For C = 0 To 15 ColorString = ColorString + Format$(Colors(I * 16 + C), "00000000 ") Next C X = WritePrivateProfileString(APP_NAME, KEY_COLOR + Format$(I + 1), ColorString, INI_FILENAME) Next I End Sub ' In Response to a File.Save or File.Save As menu operation, this routine ' is called to either immediately save the Icon or invoke the SaveFileDlg ' to get a Filename to save the Icon to. A File.Save As operation always ' invokes the Dialog, but a File.Save will only invoke the Dialog if the ' current icon does not yet have a name, denoted by a name of UNTITLED. Sub Save_Icon (Index) If (Index = MID_SAVE_AS) Or (IconInfo(CurrentIcon).FileName = UNTITLED) Then SaveFileDlg.Show MODAL Else Write_Icon_To_File (IconInfo(CurrentIcon).FullPath), IconInfo(CurrentIcon).FileName End If End Sub ' When the Editor is terminated, this routine is called to save all ' configurable items of the Editor to the IconWrks.INI file. Size ' and Location of the Editor are not saved. ' WritePrivateProfileString() will create the INI file and/or any ' KeyName that does not exist. Sub Save_Settings_To_INI_File () R = WritePrivateProfileString(APP_NAME, KEY_GRID, Format$(Abs(Menu_ViewSelection(MID_GRID).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_LINE_GRID, Format$(Abs(Menu_ViewSelection(MID_LINE_GRID).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_DOTTED_GRID, Format$(Abs(Menu_ViewSelection(MID_DOTTED_GRID).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_STATUS_BAR, Format$(Abs(Menu_ViewSelection(MID_STATUS_BAR).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_TOOL_PALETTE, Format$(Abs(Menu_ViewSelection(MID_TOOL_PALETTE).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_COLOR_PALETTE, Format$(Abs(Menu_ViewSelection(MID_COLOR_PALETTE).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_ZOOM_SCROLLBAR, Format$(Abs(Menu_ViewSelection(MID_ZOOM_SCROLLBAR).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_FOCUS, Format$(Abs(Menu_ViewSelection(MID_FOCUS).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_BORDER, Format$(Abs(Menu_ViewSelection(MID_BORDER).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_POPUP, Format$(Abs(Menu_ViewSelection(MID_POPUP_MENU).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_DEFAULT, Format$(Abs(Menu_ColorSelection(MID_DEFAULT_COLORS).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_SOLID, Format$(Abs(Menu_ColorSelection(MID_SOLID_COLORS).Checked)), INI_FILENAME) R = WritePrivateProfileString(APP_NAME, KEY_INI, Format$(Abs(Menu_ColorSelection(MID_INI_COLORS).Checked)), INI_FILENAME) End Sub ' Scrolling the Zoom scrollbar Zooms in or Zooms out on the ' selected Icon, and maintains it centered within the available ' editing space. Sub Scrl_Zoom_Change () ' Check if new value is multiple of 32 pixels. Magnified Icon must ' always be increased or decreased my muliples of 32 pixels so the ' Win API routine StretchBlt() can be used to magnify the Icon, and ' the result will be an exact enlargement of the original. ' If (Scrl_Zoom.Value - 2) Mod Pic_Icons(0).Width Then ' ' Scrollbar value is not a multiple of 32, so adjust it so it is. ' Scrl_Zoom.Value = Scrl_Zoom.Value - ((Scrl_Zoom.Value - 2) Mod Pic_Icons(0).Width) Else ' Scrollbar value is a multiple of 32 pixels. ' ' Hide Edit area while resizing and repainting. It prevents a ' rather annoying visual affect. ' Pic_Edit.Visible = False ' Calculate the new size and position values for the Editing area ' and then reposition and resize both the Editing area and the ' temporary Editing area which is used when magnifying the Icon. ' MaxLeft = Scrl_Zoom.Left - (Menu_ViewSelection(MID_ZOOM_SCROLLBAR).Checked * Scrl_Zoom.Width) NewLeft = MaxLeft + (ScaleWidth + Menu_ViewSelection(MID_STATUS_BAR).Checked * Pic_StatusArea.Width - MaxLeft - Scrl_Zoom.Value) \ 2 NewTop = (ScaleHeight + Menu_ViewSelection(MID_COLOR_PALETTE).Checked * Pic_ColorPalette.Height - Scrl_Zoom.Value) \ 2 Pic_Edit.Move NewLeft, NewTop, Scrl_Zoom.Value, Scrl_Zoom.Value Pic_EditTemp.Move 0, 0, Scrl_Zoom.Value, Scrl_Zoom.Value ' To allow a selection to be maintained if the Zoom scrollbar is scrolled ' while a selection is in progress, the current selection must be scaled ' down to the scale of the actual Icon, the new PixelSize for the Editing ' area must be calculated, and then the selection is Scaled back to the ' new scale of the Editing area. ' If Selecting Then Scale_Region True, X1Region, Y1Region, X2Region, Y2Region, False PixelSize = Pic_Edit.ScaleWidth \ 32 If Selecting Then Scale_Region False, X1Region, Y1Region, X2Region, Y2Region, False ' Recreate grid if selected and redisplay the Editing area. ' If Menu_ViewSelection(MID_GRID).Checked Then Create_Grid Pic_Edit.Visible = True ' Set enable state of Zoom in/out View menu items based on new value ' of the Zoom Scrollbar. ' Menu_ViewSelection(MID_ZOOM_IN).Enabled = Scrl_Zoom.Value < Scrl_Zoom.Max Menu_ViewSelection(MID_ZOOM_OUT).Enabled = Scrl_Zoom.Value > Scrl_Zoom.Min End If End Sub ' In response to Double Clicking the Select tool, or an Edit.Select All ' menu operation, this routine is called to perform a selection on the ' entire Icon, which is the same as if the Entire icon was selected using ' the mouse. Sub Select_Entire_Icon () ' Make the select to the selected tool. This is neccessary since ' this routine could have been called due to a menu selection, and ' the current tool may not be the Select Tool. ' Pic_ToolPalette_MouseDown LEFT_BUTTON, 0, 0, TID_SELECT * 32 ' Make all preparations for a selection just as if it was done ' using the mouse. ' Prepare_For_Possible_Move Selecting = True Moveable = False Opaque = True Scale_Region False, 0, 0, 32, 32, False Scale_Region True, X1SelectFrom, Y1SelectFrom, X2SelectFrom, Y2SelectFrom, False Draw_Selection_Rectangle End Sub ' There are two type of grids to choose from when the Grid selection ' is active. Line and Dotted grid. This routine is called in response ' to a View.Line Grid or View.Dotted Grid menu operation, to set and ' display the selected grid type. The actual Grid is created in the ' Create_Grid procedure. Sub Select_Grid_Type (Index) ' Check if selected Grid is already the currently selected grid type, ' since there is no need to redisplay it. ' If Not Menu_ViewSelection(Index).Checked Then ' ' Toggle Checks on Grid type menu items. ' Menu_ViewSelection(MID_LINE_GRID).Checked = Not Menu_ViewSelection(MID_LINE_GRID).Checked Menu_ViewSelection(MID_DOTTED_GRID).Checked = Not Menu_ViewSelection(MID_DOTTED_GRID).Checked ' Create the new Grid and redisplay Icon with new Grid. ' Create_Grid Magnify_Icon 0, 0, 31, 31 End If End Sub Sub Select_Tool_MouseUp (X1, Y1, X2, Y2) ' Erase old Selection rectangle ' Draw_Selection_Rectangle ' Adjust selection rectangle so it is completely within the ' editing area. ' If X1Region > X2Region Then Swap_Values X1Region, X2Region If Y1Region > Y2Region Then Swap_Values Y1Region, Y2Region If X1Region < 0 Then X1Region = 0 If Y1Region < 0 Then Y1Region = 0 MaxSize = PixelSize * 32 If X2Region > MaxSize Then X2Region = MaxSize If Y2Region > MaxSize Then Y2Region = MaxSize If MovingSelection Then ' ' The selection is being moved, so all that needs to be done is ' to update the values containing the last location of the ' selection, which are used when the selection is moved. ' X1 = LastX1 Y1 = LastY1 X2 = LastX2 Y2 = LastY2 ElseIf (X1Region <> X2Region) And (Y1Region <> Y2Region) Then ' ' A new selection has been made ' Prepare_For_Possible_Move Selecting = True Opaque = True ' Determine if selection can be moved. The selection cannot be moved ' if it consists of the entire icon. ' Moveable = ((X2Region - X1Region) < Pic_Edit.ScaleWidth) Or ((Y2Region - Y1Region) < Pic_Edit.ScaleWidth) Draw_Selection_Rectangle Scale_Region True, X1SelectFrom, Y1SelectFrom, X2SelectFrom, Y2SelectFrom, True End If Scale_Region True, LastX1, LastY1, LastX2, LastY2, True End Sub ' A move event using the Select tool, can do one of three things, ' size the selection rectangle to make the selection, move the ' current selection, or copy the current selection to another ' location. This routine either draws the selection rectangle ' as the selection is being made or moves/copies the current ' selection. Sub Select_Tool_Move (Shift As Integer, X As Single, Y As Single) ' Erase old selection rectangle ' Draw_Selection_Rectangle If MovingSelection Then ' ' Calculate new location of Selection rectangle. ' XLastMove = XMoveSelection YLastMove = YMoveSelection Adjust_X_and_Y X, Y, XMoveSelection, YMoveSelection, TO_EDGE X1Region = X1Region + (XMoveSelection - XLastMove) X2Region = X2Region + (XMoveSelection - XLastMove) Y1Region = Y1Region + (YMoveSelection - YLastMove) Y2Region = Y2Region + (YMoveSelection - YLastMove) ' Prevent Selection from being moved of the left or right ' of the editing area ' If (X1Region < 0) Or (X2Region > (32 * PixelSize)) Then X1Region = X1Region - (XMoveSelection - XLastMove) X2Region = X2Region - (XMoveSelection - XLastMove) End If ' Prevent Selection from being moved of the top or bottom ' of the editing area ' If (Y1Region < 0) Or Y2Region > (32 * PixelSize) Then Y1Region = Y1Region - (YMoveSelection - YLastMove) Y2Region = Y2Region - (YMoveSelection - YLastMove) End If Else ' A selection is being made, so adjust the mouse coordinates ' to the Edge of the pixels so the rectangle is completely ' around the selction. ' Adjust_X_and_Y X, Y, X2Region, Y2Region, TO_EDGE ' Make the Selection perfectly square if the Shift key is down ' If Shift And SHIFT_MASK Then Make_Region_Square End If ' Draw the new selection recangle ' Draw_Selection_Rectangle End Sub ' When the MousePointer is within the Editing area, the MousePointer ' is changed depending on the Tool being used. This routine is called ' from the MouseMove event for the Editing area (Pic_Edit) to change ' the MousePointer. Sub Set_MousePointer (X As Single, Y As Single) If Selecting And Moveable And (X >= X1Region) And (X <= X2Region) And (Y >= Y1Region) And (Y <= Y2Region) Then ' ' A selection is in progress and the selection is moveable, ' and the MousePointer is within the the selection, so the ' MousePointer is changed to a SIZE pointer to indacte ' that the Selection can be moved. ' Pic_Edit.MousePointer = SIZE ElseIf (CurrentTool = TID_PAINT) Or (CurrentTool = TID_FILL) Then Pic_Edit.MousePointer = UP_ARROW Else Pic_Edit.MousePointer = CROSSHAIR End If End Sub ' Since some of the tools can only use Solid colors and not Dithered ' colors, it is useful to have the option of displayin only the solid ' colors within the ColorPalette. This routine changes the Color ' array to contain only Solid color values then redisplays the ' ColorPalette. There are still 3 rows of colors, but each color ' cell in the same column are set to the same solid color. Sub Show_Solid_Colors_Only () ' Set Color array to all solid colors returned from QBColors() ' For I = 0 To 15 Colors(I) = QBColor(I) Colors(I + 16) = QBColor(I) Colors(I + 32) = QBColor(I) Next ' Redisplay ColorPalettes. ' Display_Color_Palette Pic_ColorPalette If ColorPaletteLoaded Then Display_Color_Palette ColorPalette.Pic_ColorPalette End Sub ' This routine is called in response to an Edit.Undo menu operation. ' The Icon displayed in the Undo Icon within the StatusArea is ' Copied to the Selected Icon. Sub UnDo_Edits () ' Terminate any Select or Move opteration ' Selecting = False MovingSelection = False ' Get Image and Mask of Icon displayed in Undo Icon in StatusArea ' Extract_Image_And_Mask Pic_Undo ' Copy Undo Icons Mask and Image to selected icon ' Update_Icon Pic_Icons(CurrentIcon) ' Redisplay entire icon ' Magnify_Icon 0, 0, 31, 31 End Sub ' When using either the Circle or Filled Circle tool, this routine is called ' to verify that the resulting circle from the current Mouse coordinates is ' a valid circle, since in some cases the result would be a vertical or ' horizontal line which would generate and "Division by Zero" if not checked ' for. If the Circle is valid, this routine calculates and sets the Global ' values of XCenter, YCenter, and Raduis for new Circle. Function Valid_Circle (X1, Y1, X2, Y2) Xleg = Abs(X2 - X1) If Xleg <> 0 Then Yleg = Abs(Y2 - Y1) Aspect = Abs(Yleg / Xleg) If Xleg > Yleg Then Radius = Xleg / 2 Else Radius = Yleg / 2 XCenter = X1 + (X2 - X1) / 2 YCenter = Y1 + (Y2 - Y1) / 2 End If ' Return value of XLeg at Function value, since if XLeg is non-zero, ' (True) it is a valid circle, and if XLeg is zero (False) it is ' an Invalid circle. ' Valid_Circle = Xleg End Function