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{%MainUnit customdrawnint.pas}
{******************************************************************************
All CustomDrawn interface support routines
Initial Revision : Sat Jan 17 19:00:00 2004
!! Keep alphabetical !!
******************************************************************************
Implementation
******************************************************************************
*****************************************************************************
This file is part of the Lazarus Component Library (LCL)
See the file COPYING.modifiedLGPL.txt, included in this distribution,
for details about the license.
*****************************************************************************
}
//##apiwiz##sps## // Do not remove
function TCDWidgetSet.AskUser(const DialogCaption, DialogMessage: string;
DialogType: LongInt; Buttons: TDialogButtons; HelpCtx: Longint): LongInt;
begin
end;
(*{------------------------------------------------------------------------------
Function: CreateEmptyRegion
Params:
Returns: valid empty region
------------------------------------------------------------------------------}
function TQtWidgetSet.CreateEmptyRegion: hRGN;
begin
Result:= HRGN(TQtRegion.Create(True));
end;
{------------------------------------------------------------------------------
Function: CreateStandardCursor
Params:
Returns:
------------------------------------------------------------------------------}
function TQtWidgetSet.CreateStandardCursor(ACursor: SmallInt): HCURSOR;
var
CursorShape: QtCursorShape;
begin
Result := 0;
if ACursor < crLow then Exit;
if ACursor > crHigh then Exit;
// TODO: map is better
case ACursor of
crNone : CursorShape := QtBlankCursor;
crArrow : CursorShape := QtArrowCursor;
crCross : CursorShape := QtCrossCursor;
crIBeam : CursorShape := QtIBeamCursor;
crSizeAll : CursorShape := QtSizeAllCursor;
crSizeNESW : CursorShape := QtSizeBDiagCursor;
crSizeNS : CursorShape := QtSizeVerCursor;
crSizeNWSE : CursorShape := QtSizeFDiagCursor;
crSizeWE : CursorShape := QtSizeHorCursor;
crSizeNW : CursorShape := QtSizeFDiagCursor;
crSizeN : CursorShape := QtSizeVerCursor;
crSizeNE : CursorShape := QtSizeBDiagCursor;
crSizeW : CursorShape := QtSizeHorCursor;
crSizeE : CursorShape := QtSizeHorCursor;
crSizeSW : CursorShape := QtSizeBDiagCursor;
crSizeS : CursorShape := QtSizeVerCursor;
crSizeSE : CursorShape := QtSizeFDiagCursor;
crUpArrow : CursorShape := QtUpArrowCursor;
crHourGlass : CursorShape := QtWaitCursor;
crHSplit : CursorShape := QtSplitHCursor;
crVSplit : CursorShape := QtSplitVCursor;
crNo : CursorShape := QtForbiddenCursor;
crAppStart : CursorShape := QtBusyCursor;
crHelp : CursorShape := QtWhatsThisCursor;
crHandPoint : CursorShape := QtPointingHandCursor;
else
CursorShape := QtCursorShape(-1);
end;
if CursorShape <> QtCursorShape(-1) then
Result := HCURSOR(TQtCursor.Create(CursorShape));
end;*)
(*{------------------------------------------------------------------------------
Function: FontIsMonoSpace
Params:
Returns:
------------------------------------------------------------------------------}
function TQtWidgetSet.FontIsMonoSpace(Font: HFont): Boolean;
var
QtFontInfo: QFontInfoH;
begin
Result := IsValidGDIObject(Font);
if Result then
begin
QtFontInfo := QFontInfo_create(TQtFont(Font).FHandle);
try
Result := QFontInfo_fixedPitch(QtFontInfo);
finally
QFontInfo_destroy(QtFontInfo);
end;
end;
end;*)
procedure TCDWidgetSet.HideVirtualKeyboard();
begin
end;
function TCDWidgetSet.IsMobilePlatform: Boolean;
begin
Result := Application.ApplicationType in [atPDA, atKeyPadDevice, atTV, atMobileEmulator];
end;
{------------------------------------------------------------------------------
Function: PromptUser
Params:
Returns:
------------------------------------------------------------------------------}
function TCDWidgetSet.PromptUser(const DialogCaption : string;
const DialogMessage : string;
DialogType : LongInt;
Buttons : PLongInt;
ButtonCount : LongInt;
DefaultIndex : LongInt;
EscapeResult : LongInt) : LongInt;
begin
Result := -1;
end;
{------------------------------------------------------------------------------
Function: RawImage_FromDevice
Params: ADC:
ARect:
ARawImage:
Returns:
This function is utilized when the function TBitmap.LoadFromDevice is called
The main use for this function is to get a screenshot. It may have other uses,
but this is the only one implemented here.
MWE: exept for the desktop, there is always a bitmep selected in the DC.
So get this internal bitmap and pass it to RawImage_FromBitmap
------------------------------------------------------------------------------}
function TCDWidgetSet.RawImage_FromDevice(out ARawImage: TRawImage; ADC: HDC; const ARect: TRect): Boolean;
var
Image: XLib.PXImage;
//XImage: XLib.TXImage;
Pdata: Pchar;
RootWindow: TWindow;
PlaneMask: culong;
lx,ly,lwidth,lheight: culong;
lDataLength: Integer;
procedure DescriptionFix(var ArawImage: TRawImage; Awidth,AHeight: Integer);
Var
Description: TRawImageDescription absolute ArawImage.Description;
begin
// setup an artificial ScanLineImage with format RGB 32 bit, 32bit depth format
//FillChar(Description, SizeOf(Description), 0);
with Description do begin;
Format := ricfRGBA;
Depth := 24; // used bits per pixel
Width := AWidth;
Height := AHeight;
BitOrder := riboBitsInOrder;
ByteOrder := riboLSBFirst;
LineOrder := riloTopToBottom;
BitsPerPixel := 32; // bits per pixel. can be greater than Depth.
LineEnd := rileDWordBoundary;
RedPrec := 8; // red precision. bits for red
RedShift := 16;
GreenPrec := 8;
GreenShift := 8; // bitshift. Direction: from least to most signifikant
BluePrec := 8;
BlueShift := 0;
AlphaPrec := 0;
AlphaShift := 0;
MaskBitsPerPixel := 1;
MaskShift:= 0;
MaskLineEnd:=rileByteBoundary;
MaskBitOrder:=riboBitsInOrder;
PaletteColorCount:= 0;
PaletteBitsPerIndex:=0;
PaletteShift:= 0;
PaletteLineEnd:=rileTight;
PaletteBitOrder:=riboBitsInOrder;
PaletteByteOrder:=riboLSBFirst;
end;
end;
begin
{$ifdef VerboseCDWinAPI}
DebugLn('Trace:> [WinAPI GetRawImageFromDevice] SrcDC: ', dbghex(ADC),
' SrcWidth: ', dbgs(ARect.Right - ARect.Left),
' SrcHeight: ', dbgs(ARect.Bottom - ARect.Top));
{$endif}
// create a raw Image to hold screenshot
lx:=ARect.Left;
ly:=ARect.Top;
lwidth:=ARect.Right-ARect.Left;
lheight:=Arect.Bottom-ARect.Top;
ARawImage.Init;
// We should get the description from the drawable but this may do
ARawImage.Description.Init_BPP32_A8R8G8B8_BIO_TTB(lwidth, lheight);
ARawImage.CreateData(True);
// Get root Window
RootWindow:= XDefaultRootWindow(FDisplay);
// Get Plane mask
PlaneMask:=XAllPlanes();
// Take the screenshot
Image:= XGetImage(
FDisplay,RootWindow, // Screen, Window
lx,ly, // x , y
lwidth,lheight, // width, height
PlaneMask, // All planes
ZPixmap); // Image format
// copy screen shot to our rawImage
lDataLength:= ARawImage.DataSize;
System.Move( Image^.Data^,ARawImage.Data^,lDataLength);
// We should fix the description from the drawable but this will do for now
DescriptionFix(ARawImage,lwidth,lheight);
ARawImage.Mask:=nil;
ARawImage.Palette:=nil;
Result := True;
end;
procedure TCDWidgetset.ShowVirtualKeyboard();
begin
end;
//##apiwiz##eps## // Do not remove, no wizard declaration after this line
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