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tvbdemo.pas
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Pascal/Delphi Source File
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1993-09-30
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9KB
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344 lines
{************************************************}
{ }
{ Demo program from the Turbo Vision Guide }
{ Copyright (c) 1990 by Borland International }
{ }
{ TVBeauty 1.0 }
{ Changes Copyright (c) 1993 by Igor I. Evsikov}
{ Sergey Yu. Shmakov & Pete P. Sychov }
{************************************************}
program TVBDEMO;
uses GTMOUSE,Objects, Drivers, Views, Menus, Dialogs, App, Memory, Dos,dark;
const
FileToRead = 'TVBDEMO.PAS';
MaxLines = 100;
WinCount: Integer = 0;
cmFileOpen = 100;
cmNewWin = 101;
cmNewDialog = 102;
cmChIm = 103;
cmdosshell = 104;
var
LineCount: Integer;
Lines: array[0..MaxLines - 1] of PString;
type
TMyApp = object(TApplication)
procedure HandleEvent(var Event: TEvent); virtual;
procedure InitMenuBar; virtual;
procedure InitStatusLine; virtual;
procedure NewDialog;
procedure NewWindow;
procedure dosshell;
procedure idle;virtual;
end;
PInterior = ^TInterior;
TInterior = object(TScroller)
constructor Init(var Bounds: TRect; AHScrollBar,
AVScrollBar: PScrollBar);
procedure Draw; virtual;
end;
PDemoWindow = ^TDemoWindow;
TDemoWindow = object(TWindow)
RInterior, LInterior: PInterior;
constructor Init(Bounds: TRect; WinTitle: String; WindowNo: Word);
function MakeInterior(Bounds: TRect; Left: Boolean): PInterior;
procedure SizeLimits(var Min, Max: TPoint); virtual;
end;
PDemoDialog = ^TDemoDialog;
TDemoDialog = object(TDialog)
end;
procedure TMyApp.idle;
begin
TApplication.idle;
Sleeper;
{ DrawArrow;}
end;
procedure Tmyapp.DosShell;
var R: TRect;
begin
GetExtent(R);
R.B.Y := R.A.Y + 1;
MenuBar := New(PMenuBar, Init(R, NewMenu(
NewSubMenu('~F~ile', hcNoContext, NewMenu(
NewItem('~O~pen', 'F3', kbF3, cmFileOpen, hcNoContext,
NewItem('~D~os shell', 'alt F4', kbaltF4, cmdosshell, hcNoContext,
NewItem('~N~ew', 'F4', kbF4, cmNewWin, hcNoContext,
NewLine(
NewItem('E~x~it', 'Alt-X', kbAltX, cmQuit, hcNoContext,
nil)))))),
NewSubMenu('~W~indow', hcNoContext, NewMenu(
NewItem('~N~ext', 'F6', kbF6, cmNext, hcNoContext,
NewItem('~Z~oom', 'F5', kbF5, cmZoom, hcNoContext,
NewItem('~D~ialog', 'F2', kbF2, cmNewDialog, hcNoContext,
nil)))),
nil))
)));
end;
{begin
DoneSysError;
DoneEvents;
DoneVideo;
DoneMemory;
SetMemTop(HeapPtr);
PrintStr('Type EXIT to return...');
DoneGTMouse;
RestoreFont;
SwapVectors;
Exec(GetEnv('COMSPEC'), '');
SwapVectors;
SetFont;
InitGtMouse;
SetMemTop(HeapEnd);
InitGtMouse;
InitMemory;
InitVideo;
InitEvents;
InitSysError;
Redraw;
end; }
procedure ReadFile;
var
F: Text;
S: String;
begin
LineCount := 0;
Assign(F, FileToRead);
{$I-}
Reset(F);
{$I+}
if IOResult <> 0 then
begin
Writeln('Cannot open ', FileToRead);
Halt(1);
end;
while not Eof(F) and (LineCount < MaxLines) do
begin
Readln(F, S);
Lines[LineCount] := NewStr(S);
Inc(LineCount);
end;
Close(F);
end;
procedure NewImage;
begin
inc(ImageNoPressed);
if ImageNoPressed=DragArrow then inc(ImageNoPressed);
if ImageNoPressed=UserArrow then ImageNoPressed:=NormalArrow;
end;
procedure DoneFile;
var
I: Integer;
begin
for I := 0 to LineCount - 1 do
if Lines[I] <> nil then DisposeStr(Lines[i]);
end;
{ TInterior }
constructor TInterior.Init(var Bounds: TRect; AHScrollBar,
AVScrollBar: PScrollBar);
begin
TScroller.Init(Bounds, AHScrollBar, AVScrollBar);
Options := Options or ofFramed;
SetLimit(128, LineCount);
end;
procedure TInterior.Draw;
var
Color: Byte;
I, Y: Integer;
B: TDrawBuffer;
begin
Color := GetColor(1);
for Y := 0 to Size.Y - 1 do
begin
MoveChar(B, ' ', Color, Size.X);
i := Delta.Y + Y;
if (I < LineCount) and (Lines[I] <> nil) then
MoveStr(B, Copy(Lines[I]^, Delta.X + 1, Size.X), Color);
WriteLine(0, Y, Size.X, 1, B);
end;
end;
{ TDemoWindow }
constructor TDemoWindow.Init(Bounds: TRect; WinTitle: String; WindowNo: Word);
var
S: string[3];
R: TRect;
begin
Str(WindowNo, S);
TWindow.Init(Bounds, WinTitle + ' ' + S, wnNoNumber);
GetExtent(Bounds);
R.Assign(Bounds.A.X, Bounds.A.Y, Bounds.B.X div 2 + 1, Bounds.B.Y);
LInterior := MakeInterior(R, True);
LInterior^.GrowMode := gfGrowHiY;
Insert(Linterior);
R.Assign(Bounds.B.X div 2, Bounds.A.Y, Bounds.B.X, Bounds.B.Y);
RInterior := MakeInterior(R,False);
RInterior^.GrowMode := gfGrowHiX + gfGrowHiY;
Insert(RInterior);
end;
function TDemoWindow.MakeInterior(Bounds: TRect; Left: Boolean): PInterior;
var
HScrollBar, VScrollBar: PScrollBar;
R: TRect;
begin
R.Assign(Bounds.B.X-1, Bounds.A.Y+1, Bounds.B.X, Bounds.B.Y-1);
VScrollBar := New(PScrollBar, Init(R));
VScrollBar^.Options := VScrollBar^.Options or ofPostProcess;
if Left then VScrollBar^.GrowMode := gfGrowHiY;
Insert(VScrollBar);
R.Assign(Bounds.A.X+2, Bounds.B.Y-1, Bounds.B.X-2, Bounds.B.Y);
HScrollBar := New(PScrollBar, Init(R));
HScrollBar^.Options := HScrollBar^.Options or ofPostProcess;
if Left then HScrollBar^.GrowMode := gfGrowHiY + gfGrowLoY;
Insert(HScrollBar);
Bounds.Grow(-1,-1);
MakeInterior := New(PInterior, Init(Bounds, HScrollBar, VScrollBar));
end;
procedure TDemoWindow.SizeLimits(var Min, Max: TPoint);
var R: TRect;
begin
TWindow.SizeLimits(Min, Max);
Min.X := LInterior^.Size.X + 9;
end;
{ TMyApp }
procedure TMyApp.HandleEvent(var Event: TEvent);
begin
Sleeper;
TApplication.HandleEvent(Event);
if Event.What = evCommand then
begin
case Event.Command of
cmNewWin: NewWindow;
cmNewDialog: NewDialog;
cmChIm: NewImage;
cmDosshell:dosshell;
else
Exit;
end;
ClearEvent(Event);
end;
end;
procedure TMyApp.InitMenuBar;
var R: TRect;
begin
GetExtent(R);
R.B.Y := R.A.Y + 1;
MenuBar := New(PMenuBar, Init(R, NewMenu(
NewSubMenu('~F~ile', hcNoContext, NewMenu(
NewItem('~O~pen', 'F3', kbF3, cmFileOpen, hcNoContext,
NewItem('~D~os shell', 'alt F4', kbaltF4, cmdosshell, hcNoContext,
NewItem('~N~ew', 'F4', kbF4, cmNewWin, hcNoContext,
NewLine(
NewItem('E~x~it', 'Alt-X', kbAltX, cmQuit, hcNoContext,
nil)))))),
NewSubMenu('~W~indow', hcNoContext, NewMenu(
NewItem('~N~ext', 'F6', kbF6, cmNext, hcNoContext,
NewItem('~Z~oom', 'F5', kbF5, cmZoom, hcNoContext,
NewItem('~D~ialog', 'F2', kbF2, cmNewDialog, hcNoContext,
nil)))),
nil))
)));
end;
procedure TMyApp.InitStatusLine;
var R: TRect;
begin
GetExtent(R);
R.A.Y := R.B.Y - 1;
StatusLine := New(PStatusLine, Init(R,
NewStatusDef(0, $FFFF,
NewStatusKey('', kbF10, cmMenu,
NewStatusKey('~Alt-X~ Exit', kbAltX, cmQuit,
NewStatusKey('~F4~ New', kbF4, cmNewWin,
NewStatusKey('~Alt-F3~ Close', kbAltF3, cmClose,
NewStatusKey('~Alt-H~ cHange image', kbAltH, cmChIm,
nil))))),
nil)
));
end;
procedure TMyApp.NewDialog;
var
Bruce: PView;
Dialog: PDemoDialog;
R: TRect;
C: Word;
begin
R.Assign(20, 6, 60, 19);
Dialog := New(PDemoDialog, Init(R, 'Demo Dialog'));
with Dialog^ do
begin
R.Assign(3, 3, 18, 6);
Bruce := New(PCheckBoxes, Init(R,
NewSItem('~H~varti',
NewSItem('~T~ilset',
NewSItem('~J~arlsberg',
nil)))
));
Insert(Bruce);
R.Assign(2, 2, 10, 3);
Insert(New(PLabel, Init(R, 'Cheeses', Bruce)));
R.Assign(22, 3, 34, 6);
Bruce := New(PRadioButtons, Init(R,
NewSItem('~S~olid',
NewSItem('~R~unny',
NewSItem('~M~elted',
nil)))
));
Insert(Bruce);
R.Assign(21, 2, 33, 3);
Insert(New(PLabel, Init(R, 'Consistency', Bruce)));
R.Assign(15, 10, 25, 12);
Insert(New(PButton, Init(R, '~O~k', cmOK, bfDefault)));
R.Assign(28, 10, 38, 12);
Insert(New(PButton, Init(R, 'Cancel', cmCancel, bfNormal)));
end;
C := DeskTop^.ExecView(Dialog);
Dispose(Dialog, Done);
end;
procedure TMyApp.NewWindow;
var
Window: PDemoWindow;
R: TRect;
begin
Inc(WinCount);
R.Assign(0, 0, 45, 13);
R.Move(Random(34), Random(11));
Window := New(PDemoWindow, Init(R, 'Demo Window', WinCount));
DeskTop^.Insert(Window);
end;
var
MyApp: TMyApp;
i : integer;
begin
InitSleeper(4,10,80,1,80,1); { ReInit Slepper to left down/10 sec }
ReadFile;
MyApp.Init;
MyApp.Run;
MyApp.Done;
DoneFile;
end.