456 lines
11 KiB
Plaintext
456 lines
11 KiB
Plaintext
unit Window;
|
|
|
|
{$mode objfpc}{$H+}
|
|
|
|
interface
|
|
|
|
uses
|
|
Classes, SysUtils, mufasatypes,
|
|
{$IFDEF MSWINDOWS}
|
|
windows, // For windows API
|
|
{$ENDIF}
|
|
graphics,
|
|
LCLType,
|
|
LCLIntf // for ReleaseDC and such
|
|
|
|
{$IFDEF LINUX}, xlib, x, xutil, ctypes{$ENDIF};
|
|
|
|
type
|
|
|
|
{ TMWindow }
|
|
|
|
TMWindow = class(TObject)
|
|
function ReturnData(xs, ys, width, height: Integer): TRetData;
|
|
procedure FreeReturnData;
|
|
procedure GetDimensions(var W, H: Integer);
|
|
function CopyClientToBitmap(xs, ys, xe, ye: integer): TBitmap;
|
|
procedure ActivateClient;
|
|
{$IFDEF LINUX}
|
|
function SetTarget(XWindow: x.TWindow): integer; overload;
|
|
{$ENDIF}
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
function UpdateDrawBitmap:boolean;
|
|
{$ENDIF}
|
|
function SetTarget(Window: THandle; NewType: TTargetWindowMode): integer; overload;
|
|
function SetTarget(ArrPtr: PRGB32; Size: TPoint): integer; overload;
|
|
|
|
constructor Create(Client: TObject);
|
|
destructor Destroy; override;
|
|
public
|
|
// Client
|
|
Client: TObject;
|
|
|
|
// Target Window Mode.
|
|
TargetMode: TTargetWindowMode;
|
|
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
//Target handle; HWND
|
|
TargetHandle : Hwnd;
|
|
DrawBmpDataPtr : PRGB32;
|
|
|
|
//Works on linux as well, test it out
|
|
TargetDC : HDC;
|
|
DrawBitmap : TBitmap;
|
|
DrawBmpW,DrawBmpH : integer;
|
|
{$ENDIF}
|
|
|
|
{$IFDEF LINUX}
|
|
// X Display
|
|
XDisplay: PDisplay;
|
|
|
|
// Connection Number
|
|
XConnectionNumber: Integer;
|
|
|
|
// X Window
|
|
CurWindow: x.TWindow;
|
|
|
|
// Desktop Window
|
|
DesktopWindow: x.TWindow;
|
|
|
|
// X Screen
|
|
XScreen: PScreen;
|
|
|
|
// X Screen Number
|
|
XScreenNum: Integer;
|
|
|
|
// The X Image pointer.
|
|
XWindowImage: PXImage;
|
|
|
|
{$IFDEF M_MEMORY_DEBUG}
|
|
// XImageFreed should be True if there is currently no
|
|
// XImage loaded. If one is loaded, XImageFreed is true.
|
|
|
|
// If ReturnData is called while XImageFreed is false,
|
|
// we throw an exception.
|
|
// Same for FreeReturnData with XImageFreed true.
|
|
XImageFreed: Boolean;
|
|
{$ENDIF}
|
|
|
|
{$ELSE}
|
|
|
|
{$ENDIF}
|
|
|
|
ArrayPtr: PRGB32;
|
|
ArraySize: TPoint;
|
|
|
|
|
|
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses
|
|
Client, // For the Client Class
|
|
windowutil, // For utilities such as XImageToRawImage
|
|
GraphType // For TRawImage
|
|
;
|
|
|
|
constructor TMWindow.Create(Client: TObject);
|
|
begin
|
|
inherited Create;
|
|
|
|
Self.Client := Client;
|
|
|
|
Self.ArrayPtr := nil;
|
|
Self.ArraySize := Classes.Point(-1, -1);
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
Self.DrawBitmap := TBitmap.Create;
|
|
Self.DrawBitmap.PixelFormat:= pf32bit;
|
|
Self.TargetMode:= w_Window;
|
|
Self.TargetHandle:= windows.GetDesktopWindow;
|
|
Self.TargetDC:= GetWindowDC(Self.TargetHandle);
|
|
Self.UpdateDrawBitmap;
|
|
{$ENDIF}
|
|
|
|
{$IFDEF LINUX}
|
|
Self.XImageFreed:=True;
|
|
Self.TargetMode := w_XWindow;
|
|
|
|
Self.XDisplay := XOpenDisplay(nil);
|
|
if Self.XDisplay = nil then
|
|
begin
|
|
// throw Exception
|
|
end;
|
|
Self.XConnectionNumber:= ConnectionNumber(Self.XDisplay);
|
|
Self.XScreen := XDefaultScreenOfDisplay(Self.XDisplay);
|
|
Self.XScreenNum:= DefaultScreen(Self.XDisplay);
|
|
|
|
// The Root Window is the Desktop. :-)
|
|
Self.DesktopWindow:= RootWindow(Self.XDisplay, Self.XScreenNum);
|
|
Self.CurWindow:= Self.DesktopWindow;
|
|
|
|
{$ENDIF}
|
|
|
|
end;
|
|
|
|
destructor TMWindow.Destroy;
|
|
begin
|
|
|
|
{$IFDEF LINUX}
|
|
XCloseDisplay(Self.XDisplay);
|
|
{$ENDIF}
|
|
{$IFDEF MSWINDOWS}
|
|
if TargetMode = w_Window then
|
|
ReleaseDC(TargetHandle,TargetDC);
|
|
DrawBitmap.Free;
|
|
{$ENDIF}
|
|
inherited;
|
|
end;
|
|
|
|
function TMWindow.ReturnData(xs, ys, width, height: Integer): TRetData;
|
|
var
|
|
{$IFDEF LINUX}
|
|
Old_Handler: TXErrorHandler;
|
|
{$ENDIF}
|
|
TmpData: PRGB32;
|
|
|
|
begin
|
|
case Self.TargetMode of
|
|
w_Window:
|
|
begin
|
|
{$IFDEF MSWINDOWS}
|
|
BitBlt(Self.DrawBitmap.Canvas.Handle,0,0, width, height, Self.TargetDC, xs,ys, SRCCOPY);
|
|
Result.Ptr:= Self.DrawBmpDataPtr;
|
|
Result.IncPtrWith:= DrawBmpW - Width;
|
|
{$ENDIF}
|
|
end;
|
|
w_XWindow:
|
|
begin
|
|
{$IFDEF LINUX}
|
|
{ Should be this. }
|
|
Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
|
|
|
|
Self.XWindowImage := XGetImage(Self.XDisplay, Self.curWindow, xs, ys, width, height, AllPlanes, ZPixmap);
|
|
if QWord(Self.XWindowImage) = 0 then
|
|
begin
|
|
Writeln('ReturnData: XGetImage Error. Dumping data now:');
|
|
Writeln('xs, ys, width, height: ' + inttostr(xs) + ', ' + inttostr(ys) +
|
|
', ' + inttostr(width) + ', ' + inttostr(height));
|
|
Result.Ptr := nil;
|
|
Result.IncPtrWith := 0;
|
|
|
|
XSetErrorHandler(Old_Handler);
|
|
Exit;
|
|
end;
|
|
//WriteLn(IntToStr(Self.XWindowImage^.width) + ', ' + IntToStr(Self.XWindowImage^.height));
|
|
Result.Ptr := PRGB32(Self.XWindowImage^.data);
|
|
Result.IncPtrWith := 0;
|
|
Self.XImageFreed:=False;
|
|
|
|
XSetErrorHandler(Old_Handler);
|
|
{$ELSE}
|
|
WriteLn('Windows doesn''t support XImage');
|
|
{$ENDIF}
|
|
end;
|
|
w_ArrayPtr:
|
|
begin
|
|
TmpData := Self.ArrayPtr;
|
|
Inc(TmpData, ys * Height + xs);
|
|
Result.Ptr := TmpData;
|
|
Result.IncPtrWith:= Self.ArraySize.x - width;
|
|
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TMWindow.FreeReturnData;
|
|
begin
|
|
if Self.TargetMode <> w_XWindow then
|
|
begin
|
|
// throw exception.
|
|
exit;
|
|
end;
|
|
{$IFDEF LINUX}
|
|
if not Self.XImageFreed then
|
|
begin
|
|
Self.XImageFreed:=True;
|
|
if(QWord(Self.XWindowImage) <> 0) then // 0, nil?
|
|
begin
|
|
XDestroyImage(Self.XWindowImage);
|
|
end;
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
// Bugged. For params other than 0, 0, ClientWidth, ClientHeight
|
|
// if other type than w_XImage
|
|
|
|
// Also thread bugged
|
|
function TMWindow.CopyClientToBitmap(xs, ys, xe, ye: integer): TBitmap;
|
|
var
|
|
w,h: Integer;
|
|
ww, hh: Integer;
|
|
Raw: TRawImage;
|
|
Bmp: TBitmap;
|
|
{$IFDEF LINUX}
|
|
Old_Handler: TXErrorHandler;
|
|
Img: PXImage;
|
|
{$ENDIF}
|
|
|
|
|
|
begin
|
|
Self.GetDimensions(w, h);
|
|
writeln(inttostr(xs) + ', ' + inttostr(ys) + ' : ' + inttostr(xe) + ', ' +
|
|
inttostr(ye));
|
|
ww := xe-xs;
|
|
hh := ye-ys;
|
|
if(xs < 0) or (ys < 0) or (xe > W) or (ye > H) then
|
|
begin
|
|
writeln('Faulty coordinates');
|
|
exit;
|
|
end;
|
|
|
|
|
|
case Self.TargetMode Of
|
|
w_Window:
|
|
begin
|
|
{$IFDEF MSWINDOWS}
|
|
Result := TBitmap.Create;
|
|
Result.SetSize(ww+1,hh+1);
|
|
BitBlt(result.canvas.handle,0,0,ww+1,hh+1,
|
|
self.TargetDC,xs,ys, SRCCOPY);
|
|
{$ENDIF}
|
|
end;
|
|
w_XWindow:
|
|
begin
|
|
{$IFDEF LINUX}
|
|
Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
|
|
|
|
Img := XGetImage(Self.XDisplay, Self.curWindow, xs, ys, ww, hh, AllPlanes, ZPixmap);
|
|
XImageToRawImage(Img, Raw);
|
|
|
|
Bmp := TBitmap.Create;
|
|
Bmp.LoadFromRawImage(Raw, False);
|
|
Result := Bmp;
|
|
|
|
{
|
|
If you want to use some internal Bitmap system, BitBlt to it here.
|
|
Don't forget to free Bmp!
|
|
}
|
|
//lclintf.BitBlt(Bmps[bitmap].Canvas.Handle, 0, 0, ww + 1, hh + 1, Bmp.Canvas.Handle, xs, ys, SRCCOPY);
|
|
//Bmp.Free;
|
|
|
|
XDestroyImage(Img);
|
|
XSetErrorHandler(Old_Handler);
|
|
{$ELSE}
|
|
writeln('Windows and tXWindow');
|
|
{$ENDIF}
|
|
end;
|
|
w_ArrayPtr:
|
|
begin
|
|
|
|
ArrDataToRawImage(Self.ArrayPtr, Self.ArraySize, Raw);
|
|
|
|
Bmp := TBitmap.Create;
|
|
Bmp.LoadFromRawImage(Raw, False);
|
|
Result := Bmp;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TMWindow.ActivateClient;
|
|
begin
|
|
{$IFDEF MSWINDOWS}
|
|
if TargetMode = w_Window then
|
|
SetForegroundWindow(Self.TargetHandle);
|
|
{$ENDIF}
|
|
{$IFDEF LINUX}
|
|
if TargetMode = w_XWindow then
|
|
XSetInputFocus(Self.XDisplay,Self.CurWindow,RevertToParent,CurrentTime);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
{$IFDEF MSWINDOWS} //Probably need one for Linux as well
|
|
function TMWindow.UpdateDrawBitmap :boolean;
|
|
var
|
|
w,h : integer;
|
|
BmpInfo : Windows.TBitmap;
|
|
begin
|
|
GetDimensions(w,h);
|
|
DrawBitmap.SetSize(w,h);
|
|
// DrawBitmap.PixelFormat:=
|
|
DrawBmpW := w;
|
|
DrawBmpH := h;
|
|
GetObject(DrawBitmap.Handle, SizeOf(BmpInfo), @BmpInfo);
|
|
DrawBmpDataPtr := BmpInfo.bmBits;
|
|
end;
|
|
{$ENDIF}
|
|
|
|
procedure TMWindow.GetDimensions(var W, H: Integer);
|
|
{$IFDEF LINUX}
|
|
var
|
|
Attrib: TXWindowAttributes;
|
|
newx,newy : integer;
|
|
childwindow : x.TWindow;
|
|
Old_Handler: TXErrorHandler;
|
|
{$ENDIF}
|
|
{$IFDEF MSWINDOWS}
|
|
var
|
|
Rect : TRect;
|
|
{$ENDIF}
|
|
begin
|
|
case TargetMode of
|
|
w_Window:
|
|
begin
|
|
{$IFDEF MSWINDOWS}
|
|
GetWindowRect(Self.TargetHandle, Rect);
|
|
w:= Rect.Right - Rect.Left;
|
|
h:= Rect.Bottom - Rect.Top;
|
|
{$ENDIF}
|
|
end;
|
|
w_XWindow:
|
|
begin
|
|
{$IFDEF LINUX}
|
|
Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
|
|
if XGetWindowAttributes(Self.XDisplay, Self.CurWindow, @Attrib) <> 0 Then
|
|
begin
|
|
XTranslateCoordinates(Self.XDisplay, Self.CurWindow, Self.DesktopWindow, 0,0, @newx, @newy, @childwindow);
|
|
W := Attrib.Width;
|
|
H := Attrib.Height;
|
|
end else
|
|
begin
|
|
W := -1;
|
|
H := -1;
|
|
end;
|
|
XSetErrorHandler(Old_Handler);
|
|
{$ELSE}
|
|
WriteLn('You dummy! How are you going to use w_XWindow on non Linux systems?');
|
|
{$ENDIF}
|
|
end;
|
|
w_ArrayPtr:
|
|
begin
|
|
W := Self.ArraySize.X;
|
|
H := Self.ArraySize.Y;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{$IFDEF LINUX}
|
|
function TMWindow.SetTarget(XWindow: x.TWindow): integer; overload;
|
|
var
|
|
Old_Handler: TXErrorHandler;
|
|
begin
|
|
Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
|
|
Self.CurWindow := XWindow;
|
|
Self.TargetMode:= w_XWindow;
|
|
XSetErrorHandler(Old_Handler);
|
|
end;
|
|
{$ENDIF}
|
|
|
|
function TMWindow.SetTarget(Window: THandle; NewType: TTargetWindowMode): integer; overload;
|
|
begin
|
|
if NewType in [ w_XWindow, w_ArrayPtr ] then
|
|
begin
|
|
// throw exception
|
|
Exit;
|
|
end;
|
|
case NewType of
|
|
w_Window :
|
|
begin;
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
ReleaseDC(Self.TargetHandle,Self.TargetDC);
|
|
Self.TargetHandle := Window;
|
|
Self.TargetDC := GetWindowDC(Window);
|
|
{$ENDIF}
|
|
end;
|
|
end;
|
|
{$IFDEF MSWINDOWS}
|
|
UpdateDrawBitmap;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
{
|
|
This functionality is very BETA.
|
|
We have no way to send events to a window, so we should probably use the
|
|
desktop window?
|
|
|
|
eg: In mouse/keys: if Self.TargetMode not in [w_Window, w_XWindow], send it
|
|
to the desktop.
|
|
}
|
|
function TMWindow.SetTarget(ArrPtr: PRGB32; Size: TPoint): integer; overload;
|
|
begin
|
|
If Self.TargetMode = w_XWindow then
|
|
Self.FreeReturnData;
|
|
|
|
Self.ArrayPtr := ArrPtr;
|
|
Self.ArraySize := Size;
|
|
Self.TargetMode:= w_ArrayPtr;
|
|
|
|
{$IFDEF LINUX}
|
|
Self.CurWindow := Self.DesktopWindow;
|
|
{$ENDIF}
|
|
|
|
{$IFDEF WINDOWS}
|
|
Self.TargetHandle:= windows.GetDesktopWindow;
|
|
{$ENDIF}
|
|
|
|
end;
|
|
|
|
end.
|
|
|