FastReport_2022_VCL/LibD28x64/frxHTMLMisc.pas
2024-01-01 16:13:08 +01:00

1160 lines
31 KiB
ObjectPascal

{*********************************************************}
{* htmlmisc.pas *}
{*********************************************************}
{* This unit provides types, constants, and functions *}
{* that fill in some gaps in the Lazarus LCL for *}
{* compiling the ported THtmlViewer controls. *}
{*********************************************************}
{* ***** BEGIN LICENSE BLOCK ***** *}
{* Version: MPL 1.1 *}
{* *}
{* The contents of this file are subject to the Mozilla Public License *}
{* Version 1.1 (the "License"); you may not use this file except in *}
{* compliance with the License. You may obtain a copy of the License at *}
{* http://www.mozilla.org/MPL/ *}
{* *}
{* Software distributed under the License is distributed on an "AS IS" basis, *}
{* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License *}
{* for the specific language governing rights and limitations under the *}
{* License. *}
{* *}
{* Copyright (C) 2006-2009 Phil Hess. *}
{* All Rights Reserved. *}
{* *}
{* Contributor(s): *}
{* Bernd Gabriel, 2014: FlatSB support *}
{* *}
{* ***** END LICENSE BLOCK ***** *}
{***********************************************************************
The FlatSB support is added by Bernd Gabriel. It is taken from
flatsb.pp which is part of the Free Pascal run time library and fixed.
The copyright notice in flatsb.pp:
Copyright (c) 2007 by the Free Pascal development team
member of the Free Pascal development team.
See the file COPYING.FPC, included in the Free Pascal
distribution, for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{$I frxHTMLCons.inc}
{$inline on}
unit frxHTMLMisc;
interface
uses
ctypes,
Classes,
SysUtils,
{$IFDEF MSWINDOWS}
Windows,
{$ELSE}
Types, Printers,
{$ENDIF}
LclVersion,
LclIntf, LMessages, LclType, LclProc, InterfaceBase,
GraphType, Graphics, Controls;
{Important: Be sure to list LclType after SysUtils and Classes
in order to use LclType's THandle declaration (32 or 64 bits)
rather than THandle in SysUtils and Classes (=System.THandle,
which apparently is always 32 bits).}
{$macro on}
{$define SECTION_INTERFACE}
{$if fpc_fullversion < 30000}
{$include 'widestringslcl.pas'}
{$define HmString := WideString}
{$else}
{$include 'unicodestringslcl.pas'}
{$define HmString := UnicodeString}
{$endif}
{$undef SECTION_INTERFACE}
type
{$IFDEF MSWINDOWS}
{$ELSE}
TWMMouse = TLMMouse;
TWMKeyDown = TLMKeyDown;
TWMNCHitTest = TLMNCHitTest;
TWMSetText = TLMSetText;
TCMDesignHitTest = TWMMouse;
TWMChar = TLMChar;
TWMClear = TLMNoParams;
TWMCopy = TLMNoParams;
TWMCut = TLMNoParams;
TWMLButtonDblClk = TLMLButtonDblClk;
TWMLButtonDown = TLMLButtonDown;
TWMLButtonUp = TLMLButtonUp;
TWMRButtonDown = TLMRButtonDown;
TWMSysKeyDown = TLMSysKeyDown;
TWMMouseActivate = packed record
Msg: Cardinal;
TopLevel: HWND;
HitTestCode: Word;
MouseMsg: Word;
Result: Longint;
end;
TWMMouseMove = TLMMouseMove;
TWMPaste = TLMNoParams;
TMessage = TLMessage;
TWMEraseBkgnd = TLMEraseBkgnd;
TWMGetText = TLMGetText;
TWMGetTextLength = TLMGetTextLength;
TWMKillFocus = TLMKillFocus;
TWMSetCursor = packed record
Msg: Cardinal;
CursorWnd: HWND;
HitTest: Word;
MouseMsg: Word;
Result: Longint;
end;
TWMSetFocus = TLMSetFocus;
TWMGetDlgCode = TLMNoParams;
TWMSize = TLMSize;
TWMSetFont = packed record
Msg: Cardinal;
Font: HFONT;
Redraw: WordBool;
Unused: Word;
Result: Longint;
end;
TWMCommand = TLMCommand;
TWMDrawItem = TLMDrawItems;
LPDWORD = PDWORD;
TFNWndEnumProc = TFarProc;
TNonClientMetrics = packed record
cbSize: UINT;
iBorderWidth: Integer;
iScrollWidth: Integer;
iScrollHeight: Integer;
iCaptionWidth: Integer;
iCaptionHeight: Integer;
lfCaptionFont: TLogFontA;
iSmCaptionWidth: Integer;
iSmCaptionHeight: Integer;
lfSmCaptionFont: TLogFontA;
iMenuWidth: Integer;
iMenuHeight: Integer;
lfMenuFont: TLogFontA;
lfStatusFont: TLogFontA;
lfMessageFont: TLogFontA;
end;
TWMKey = TLMKey;
TWMScroll = TLMScroll;
TWMNoParams = TLMNoParams;
TWMPaint = TLMPaint;
TWMNCPaint = packed record
Msg: Cardinal;
RGN: HRGN;
Unused: Longint;
Result: Longint;
end;
TWMHScroll = TLMHScroll;
TWMVScroll = TLMVScroll;
PINT = ^Integer;
PUINT = ^UINT;
LPINT = ^LongInt;
INT_PTR = LongInt;
{$ENDIF}
{$IFDEF MSWINDOWS}
tagXFORM = XFORM;
TXForm = tagXFORM;
{$if lcl_fullversion >= 1060400}
TGCPResultsW = GCP_RESULTSW;
{$else}
TGCPResultsW = GCP_RESULTS;
{$endif}
// OSVERSIONINFO = _OSVERSIONINFO;
{$ELSE}
tagXFORM = packed record
eM11: Single;
eM12: Single;
eM21: Single;
eM22: Single;
eDx: Single;
eDy: Single;
end;
TXForm = tagXFORM;
tagGCP_RESULTSW = packed record
lStructSize: DWORD;
lpOutString: PWideChar;
lpOrder: PUINT;
lpDx: PINT;
lpCaretPos: PINT;
lpClass: PWideChar;
lpGlyphs: PUINT;
nGlyphs: UINT;
nMaxFit: Integer;
end;
TGCPResults = tagGCP_RESULTSW;
TGCPResultsW = tagGCP_RESULTSW;
_OSVERSIONINFOA = record
dwOSVersionInfoSize: DWORD;
dwMajorVersion: DWORD;
dwMinorVersion: DWORD;
dwBuildNumber: DWORD;
dwPlatformId: DWORD;
szCSDVersion: array[0..127] of AnsiChar;
end;
OSVERSIONINFOA = _OSVERSIONINFOA;
OSVERSIONINFO = OSVERSIONINFOA;
TOSVersionInfoA = _OSVERSIONINFOA;
TOSVersionInfo = TOSVersionInfoA;
const
CCHDEVICENAME = 32;
CCHFORMNAME = 32;
type
_devicemodeA = packed record
dmDeviceName: array[0..CCHDEVICENAME - 1] of AnsiChar;
dmSpecVersion: Word;
dmDriverVersion: Word;
dmSize: Word;
dmDriverExtra: Word;
dmFields: DWORD;
dmOrientation: SHORT;
dmPaperSize: SHORT;
dmPaperLength: SHORT;
dmPaperWidth: SHORT;
dmScale: SHORT;
dmCopies: SHORT;
dmDefaultSource: SHORT;
dmPrintQuality: SHORT;
dmColor: SHORT;
dmDuplex: SHORT;
dmYResolution: SHORT;
dmTTOption: SHORT;
dmCollate: SHORT;
dmFormName: array[0..CCHFORMNAME - 1] of AnsiChar;
dmLogPixels: Word;
dmBitsPerPel: DWORD;
dmPelsWidth: DWORD;
dmPelsHeight: DWORD;
dmDisplayFlags: DWORD;
dmDisplayFrequency: DWORD;
dmICMMethod: DWORD;
dmICMIntent: DWORD;
dmMediaType: DWORD;
dmDitherType: DWORD;
dmICCManufacturer: DWORD;
dmICCModel: DWORD;
dmPanningWidth: DWORD;
dmPanningHeight: DWORD;
end;
TDeviceModeA = _devicemodeA;
PDeviceModeA = ^TDeviceModeA;
PDeviceMode = PDeviceModeA;
LPCSTR = PAnsiChar;
LPWSTR = PWideChar;
LPSTR = PAnsiChar;
LCID = DWORD;
HKL = type LongWord;
LCTYPE = DWORD;
PBOOL = ^BOOL;
{$ENDIF}
{$IFDEF VER2_0}
TMonthNameArray = array[1..12] of string;
TWeekNameArray = array[1..7] of string;
TFormatSettings = record
CurrencyFormat: Byte;
NegCurrFormat: Byte;
ThousandSeparator: Char;
DecimalSeparator: Char;
CurrencyDecimals: Byte;
DateSeparator: Char;
TimeSeparator: Char;
ListSeparator: Char;
CurrencyString: string;
ShortDateFormat: string;
LongDateFormat: string;
TimeAMString: string;
TimePMString: string;
ShortTimeFormat: string;
LongTimeFormat: string;
ShortMonthNames: TMonthNameArray;
LongMonthNames: TMonthNameArray;
ShortDayNames: TWeekNameArray;
LongDayNames: TWeekNameArray;
TwoDigitYearCenturyWindow: Word;
end;
{$ENDIF}
{$IFDEF MSWINDOWS}
{$ELSE}
PDevMode = PDeviceMode;
TWMDropFiles = packed record
Msg: Cardinal;
Drop: THANDLE;
Unused: Longint;
Result: Longint;
end;
{$ENDIF}
TCMGotFocus = TWMNoParams;
TCMExit = TWMNoParams;
const
WM_WININICHANGE = CM_WININICHANGE;
WM_CANCELMODE = LM_CANCELMODE;
WM_ERASEBKGND = LM_ERASEBKGND;
WM_GETTEXTLENGTH = LM_GETTEXTLENGTH;
WM_KEYDOWN = LM_KEYDOWN;
WM_KILLFOCUS = LM_KILLFOCUS;
WM_LBUTTONDOWN = LM_LBUTTONDOWN;
WM_LBUTTONUP = LM_LBUTTONUP;
WM_MOUSEMOVE = LM_MOUSEMOVE;
WM_NCHITTEST = LM_NCHITTEST;
WM_SETCURSOR = LM_SETCURSOR;
WM_SETTEXT = $000C;
WM_GETTEXT = $000D;
WM_SETFOCUS = LM_SETFOCUS;
WM_CHAR = LM_CHAR;
WM_CLEAR = LM_CLEAR;
WM_COPY = LM_COPY;
WM_CUT = LM_CUT;
WM_PASTE = LM_PASTE;
// With Lazarus versions prior to March 2008, LM_CLEAR, etc. are not defined,
// so comment previous 4 lines and uncomment next 4 lines.
{
WM_CLEAR = LM_CLEARSEL;
WM_COPY = LM_COPYTOCLIP;
WM_CUT = LM_CUTTOCLIP;
WM_PASTE = LM_PASTEFROMCLIP;
}
WM_GETDLGCODE = LM_GETDLGCODE;
WM_SIZE = LM_SIZE;
WM_SETFONT = LM_SETFONT;
WM_SYSKEYDOWN = LM_SYSKEYDOWN;
WM_RBUTTONUP = LM_RBUTTONUP;
WM_MOUSEACTIVATE = $0021;
WM_LBUTTONDBLCLK = LM_LBUTTONDBLCLK;
WM_SETREDRAW = $000B;
WM_NEXTDLGCTL = $0028;
WM_MOUSEWHEEL = LM_MOUSEWHEEL;
WM_PAINT = LM_PAINT;
WM_VSCROLL = LM_VSCROLL;
WM_HSCROLL = LM_HSCROLL;
WM_NCPAINT = LM_NCPAINT;
WM_MEASUREITEM = LM_MEASUREITEM;
EM_GETMODIFY = $00B8;
EM_SETMODIFY = $00B9;
EM_GETSEL = $00B0;
EM_SETSEL = $00B1;
EM_GETLINECOUNT = $00BA;
EM_LINELENGTH = $00C1;
EM_LINEINDEX = $00BB;
EM_GETLINE = $00C4;
EM_REPLACESEL = $00C2;
EM_LIMITTEXT = $00C5;
CS_SAVEBITS = $800;
CS_DBLCLKS = 8;
SPI_GETWORKAREA = 48;
SPI_GETNONCLIENTMETRICS = 41;
DLGC_STATIC = $100;
GW_HWNDLAST = 1;
GW_HWNDNEXT = 2;
GW_HWNDPREV = 3;
GW_CHILD = 5;
DT_EXPANDTABS = $40;
DT_END_ELLIPSIS = $8000;
DT_MODIFYSTRING = $10000;
GHND = 66;
TMPF_TRUETYPE = 4;
SWP_HIDEWINDOW = $80;
SWP_SHOWWINDOW = $40;
RDW_INVALIDATE = 1;
RDW_UPDATENOW = $100;
RDW_FRAME = $400;
LANG_JAPANESE = $11;
ES_PASSWORD = $20;
ES_LEFT = 0;
ES_RIGHT = 2;
ES_CENTER = 1;
ES_AUTOHSCROLL = $80;
ES_MULTILINE = 4;
ODS_COMBOBOXEDIT = $1000;
CB_FINDSTRING = $014C;
CB_SETITEMHEIGHT = $0153;
CB_FINDSTRINGEXACT = $0158;
CB_SETDROPPEDWIDTH = 352;
CBS_DROPDOWN = 2;
CBS_DROPDOWNLIST = 3;
CBS_OWNERDRAWVARIABLE = $20;
CBS_AUTOHSCROLL = $40;
CBS_HASSTRINGS = $200;
WHEEL_DELTA = 120;
LB_GETCARETINDEX = $019F;
LB_GETCOUNT = $018B;
LB_GETCURSEL = $0188;
LB_GETITEMHEIGHT = $01A1;
LB_GETITEMRECT = $0198;
LB_GETSEL = $0187;
LB_GETTOPINDEX = $018E;
LB_RESETCONTENT = $0184;
LB_SELITEMRANGE = $019B;
LB_SETCURSEL = $0186;
LB_SETSEL = $0185;
LB_SETTABSTOPS = $0192;
LB_SETTOPINDEX = $0197;
LB_ERR = -1;
MA_ACTIVATE = 1;
MA_NOACTIVATEANDEAT = 4;
MB_PRECOMPOSED = 1;
MB_USEGLYPHCHARS = 4;
WC_DISCARDNS = $10;
WC_SEPCHARS = $20;
WC_DEFAULTCHAR = $40;
WC_COMPOSITECHECK = $200;
GM_ADVANCED = 2;
GCP_REORDER = 2;
GCP_USEKERNING = 8;
GCP_LIGATE = 32;
GCP_DISPLAYZWG = $400000;
MM_ANISOTROPIC = 8;
MWT_LEFTMULTIPLY = 2;
WM_TIMER = LM_TIMER;
WM_DROPFILES = LM_DROPFILES;
WM_IME_STARTCOMPOSITION = $010D;
WM_IME_ENDCOMPOSITION = $010E;
WM_IME_COMPOSITION = $010F;
WM_MOUSEFIRST = LM_MOUSEFIRST;
WM_MOUSELAST = LM_MOUSELAST;
WM_KEYFIRST = LM_KEYFIRST;
WM_KEYLAST = LM_KEYLAST;
CF_UNICODETEXT = 13;
CF_ENHMETAFILE = 14;
MM_TWIPS = 6;
GMEM_MOVEABLE = 2;
GMEM_DDESHARE = $2000;
GMEM_ZEROINIT = $40;
EM_GETRECT = $00B2;
EM_SETRECTNP = $00B4;
MB_TASKMODAL = $00002000;
PHYSICALOFFSETX = 112;
PHYSICALOFFSETY = 113;
BM_SETCHECK = $00F1;
PLANES = 14;
NUMCOLORS = 24;
STRETCH_DELETESCANS = 3;
CP_ACP = 0; {ANSI code page}
CP_OEMCP = 1; {OEM code page }
CP_MACCP = 2; {MAC code page }
CP_SYMBOL = 42;
HeapAllocFlags = GMEM_MOVEABLE; {2}
CP_UTF8 = 65001;
RDH_RECTANGLES = 1;
MAXLONG = $7FFFFFFF;
VER_PLATFORM_WIN32_WINDOWS = 1;
{$IFNDEF MSWINDOWS}
Win32Platform = 2; //Set as though Windows NT (VER_PLATFORM_WIN32_NT)
Win32MinorVersion = 0;
{$ENDIF}
type
PWCHAR = PWideChar;
PXForm = ^TXForm;
{$IFDEF MSWINDOWS}
TRgnDataHeader = Windows.TRGNDATAHEADER;
{$ELSE}
_RGNDATAHEADER = packed record
dwSize: DWORD;
iType: DWORD;
nCount: DWORD;
nRgnSize: DWORD;
rcBound: TRect;
end;
TRgnDataHeader = _RGNDATAHEADER;
{$ENDIF}
{$IFDEF MSWINDOWS}
PRgnData = Windows.PRGNDATA;
TRgnData = Windows.TRGNDATA;
{$ELSE}
RGNDATA = record
rdh: TRgnDataHeader;
Buffer: array[0..0] of CHAR;
Reserved: array[0..2] of CHAR;
end;
PRgnData = ^TRgnData;
TRgnData = RGNDATA;
{$ENDIF}
{$IFDEF MSWINDOWS}
TLogBrush = Windows.LOGBRUSH;
{$ENDIF}
{These belong in LclIntf unit}
function GetTickCount : DWORD;
{$IFNDEF MSWINDOWS}
function GetSystemMetrics(nIndex: Integer): Integer;
{$ENDIF}
procedure OutputDebugString(lpOutputString: PChar);
function GlobalAlloc(uFlags: UINT; dwBytes: DWORD): HGLOBAL;
function GlobalLock(hMem: HGLOBAL): Pointer;
function GlobalUnlock(hMem: HGLOBAL): BOOL;
function GlobalFree(hMem: HGLOBAL): HGLOBAL;
function MultiByteToWideChar(CodePage: UINT; dwFlags: DWORD;
const lpMultiByteStr: LPCSTR; cchMultiByte: Integer;
lpWideCharStr: LPWSTR; cchWideChar: Integer): Integer;
function WideCharToMultiByte(CodePage: UINT; dwFlags: DWORD;
lpWideCharStr: LPWSTR; cchWideChar: Integer;
lpMultiByteStr: LPSTR; cchMultiByte: Integer;
lpDefaultChar: LPCSTR; lpUsedDefaultChar: PBOOL): Integer;
//function CharUpperBuffW(lpsz: PWideChar; cchLength: DWORD): DWORD;
//function CharLowerBuffW(lpsz: PWideChar; cchLength: DWORD): DWORD;
function GetTextExtentPoint32W(DC: HDC; Str: PWideChar; Count: Integer; var Size: TSize): BOOL;
function SetTextAlign(DC: HDC; Flags: UINT): UINT;
function GetMapMode(DC: HDC): Integer;
function SetMapMode(DC: HDC; p2: Integer): Integer;
function SetViewportExtEx(DC: HDC; XExt, YExt: Integer; Size: PSize): BOOL;
function GetViewportExtEx(DC: HDC; var Size: TSize): BOOL;
function GetWindowOrgEx(DC: HDC; var Point: TPoint): BOOL;
function SetWindowExtEx(DC: HDC; XExt, YExt: Integer; Size: PSize): BOOL;
function GetWindowExtEx(DC: HDC; var Size: TSize): BOOL;
{$IFNDEF MSWINDOWS}
function GetDeviceCaps(DC: HDC; Index: Integer): Integer;
{$ENDIF}
function TextOutW(DC: HDC; X, Y: Integer; Str: PWideChar; Count: Integer): BOOL;
function ExtTextOutW(DC: HDC; X, Y: Integer; Options: Longint; Rect: PRect; Str: PWideChar; Count: Longint; Dx: PInteger): BOOL;
function DrawTextW(hDC: HDC; Str: PWideChar; Count: Integer; var lpRect: TRect; uFormat: UINT): Integer;
function PatBlt(DC: HDC; X, Y, Width, Height: Integer; Rop: DWORD): BOOL;
function SetTextJustification(DC: HDC; BreakExtra, BreakCount: Integer): Integer;
function GetBrushOrgEx(DC: HDC; var lppt: TPoint): BOOL;
function SetBrushOrgEx(DC: HDC; X, Y: Integer; PrevPt: PPoint): BOOL;
function timeGetTime: DWORD;
function GetTextExtentExPointW(DC: HDC; Str: PWideChar; Count, p4: Integer; p5, p6: PInteger; var p7: TSize): BOOL;
function GetTempPath(nBufferLength: DWORD; lpBuffer: PChar): DWORD;
function CharNextEx(CodePage: Word; lpCurrentChar: LPCSTR; dwFlags: DWORD): LPSTR;
function ExtCreateRegion(XForm: PXForm; Count: DWORD; const RgnData: TRgnData): HRGN;
function ExtCreatePen(PenStyle, Width: DWORD; const Brush: TLogBrush; StyleCount: DWORD; Style: Pointer): HPEN;
function BeginPath(DC: HDC): BOOL;
function EndPath(DC: HDC): BOOL;
function StrokePath(DC: HDC): BOOL;
function CloseFigure(DC: HDC): BOOL;
function ClipCursor(lpRect: PRect): BOOL;
var
htExpectsUTF8 : Boolean; {True=widgetset expects to receive UTF8-encoded strings}
implementation
{$if lcl_fullversion >= 1080000}
uses
LCLPlatformDef;
{$endif}
{$define SECTION_IMPLEMENTATION}
{$if fpc_fullversion < 30000}
{$include 'widestringslcl.pas'}
{$else}
{$include 'unicodestringslcl.pas'}
{$endif}
{$undef SECTION_IMPLEMENTATION}
{These functions belong in LclIntf unit}
function GetTickCount : DWORD;
{On Windows, this is number of milliseconds since Windows was
started. On non-Windows platforms, LCL returns number of
milliseconds since Dec. 30, 1899, wrapped by size of DWORD.}
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetTickCount;
{$ELSE}
Result := LclIntf.GetTickCount;
{$ENDIF}
end;
{$IFNDEF MSWINDOWS}
function GetSystemMetrics(nIndex: Integer): Integer;
// SM_CYBORDER, etc. not implemented yet in GTK widgetset.
begin
if nIndex = SM_SWAPBUTTON then
Result := 0 //Not implemented on GTK, so assume buttons not swapped.
else
begin
if nIndex = SM_CYBORDER then
nIndex := SM_CYEDGE; //Substitute for now so returned value is valid.
Result := LclIntf.GetSystemMetrics(nIndex);
end;
end;
{$ENDIF}
procedure OutputDebugString(lpOutputString: PChar);
begin
{$IFDEF MSWINDOWS}
Windows.OutputDebugString(lpOutputString);
{$ENDIF}
end;
function GlobalAlloc(uFlags: UINT; dwBytes: DWORD): HGLOBAL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GlobalAlloc(uFlags, dwBytes);
{$ELSE}
Result := HGLOBAL(GetMem(dwBytes)); {Treating pointer to memory as "handle"}
{$ENDIF}
end;
function GlobalLock(hMem: HGLOBAL): Pointer;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GlobalLock(hMem);
{$ELSE}
Result := Pointer(hMem); {"Handle" is pointer to memory}
{$ENDIF}
end;
function GlobalUnlock(hMem: HGLOBAL): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GlobalUnlock(hMem);
{$ELSE}
Result := True;
{$ENDIF}
end;
function GlobalFree(hMem: HGLOBAL): HGLOBAL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GlobalFree(hMem);
{$ELSE}
FreeMem(Pointer(hMem)); {"Handle" is pointer to memory}
Result := 0;
{$ENDIF}
end;
function MultiByteToWideChar(CodePage: UINT; dwFlags: DWORD;
const lpMultiByteStr: LPCSTR; cchMultiByte: Integer;
lpWideCharStr: LPWSTR; cchWideChar: Integer): Integer;
{$IFDEF MSWINDOWS}
begin
Result := Windows.MultiByteToWideChar(CodePage, dwFlags, lpMultiByteStr,
cchMultiByte, lpWideCharStr, cchWideChar);
{$ELSE}
var
s : string;
w : HmString;
begin
if cchMultiByte < 0 then {Null terminated?}
s := lpMultiByteStr
else
begin
SetLength(s, cchMultiByte);
Move(lpMultiByteStr^, s[1], cchMultiByte);
end;
SetLength(w, Succ(Length(s)));
StringToWideChar(s, PWideChar(w), Length(w));
{Look for terminating null to determine length of returned string}
Result := 0;
while w[Succ(Result)] <> #0 do
Inc(Result);
if cchMultiByte < 0 then {Include terminating null too?}
Inc(Result);
if cchWideChar > 0 then {Okay to return string?}
Move(w[1], lpWideCharStr^, Result*2); {Assume dest. buffer has enough space}
{$ENDIF}
end;
{$IFDEF MSWINDOWS}
{$ELSE}
function PWideCharToHmString(Str: PWideChar; Count: Integer): HmString;
begin
if Count < 0 then {Null terminated?}
Result := Str
else {Specifies number of wide chars to convert}
begin
SetLength(Result, Count);
if Count > 0 then
Move(Str^, Result[1], Count * sizeof(Result[1]));
end;
end;
function HmStringToString(const Str: HmString): String;
begin
if htExpectsUTF8 then
Result := UTF8Encode(Str) {Widgetset expects UTF8, so encode wide string as UTF8}
else
Result := Str; {Just convert to ANSI}
end;
{$ENDIF}
function WideCharToMultiByte(CodePage: UINT; dwFlags: DWORD;
lpWideCharStr: LPWSTR; cchWideChar: Integer;
lpMultiByteStr: LPSTR; cchMultiByte: Integer;
lpDefaultChar: LPCSTR; lpUsedDefaultChar: PBOOL): Integer;
{$IFDEF MSWINDOWS}
begin
Result := Windows.WideCharToMultiByte(CodePage, dwFlags, lpWideCharStr,
cchWideChar, lpMultiByteStr, cchMultiByte,
lpDefaultChar, lpUsedDefaultChar);
{$ELSE}
var
w : HmString;
s : string;
begin
w := PWideCharToHmString(lpWideCharStr, cchWideChar);
case CodePage of
CP_UTF8:
s := UTF8Encode(w);
else
s := WideCharToString(PWideChar(w));
end;
Result := Length(s);
if cchWideChar < 0 then {Include terminating null too?}
Inc(Result);
if cchMultiByte > 0 then {Okay to return string?}
Move(s[1], lpMultiByteStr^, Result); {Assume dest. buffer has enough space}
{$ENDIF}
end;
//function CharUpperBuffW(lpsz: PWideChar; cchLength: DWORD): DWORD;
//{$IFDEF MSWINDOWS}
//begin
// Result := Windows.CharUpperBuffw(lpsz, cchLength);
//{$ELSE}
//var
// w : HmString;
//begin
// SetLength(w, cchLength);
// Move(lpsz^, w[1], cchLength*2);
// w := WideUpperCase(w);
// Move(w[1], lpsz^, cchLength*2);
// Result := cchLength;
//{$ENDIF}
//end;
//
//function CharLowerBuffW(lpsz: PWideChar; cchLength: DWORD): DWORD;
//{$IFDEF MSWINDOWS}
//begin
// Result := Windows.CharLowerBuffw(lpsz, cchLength);
//{$ELSE}
//var
// w : HmString;
//begin
// SetLength(w, cchLength);
// Move(lpsz^, w[1], cchLength*2);
// w := WideLowerCase(w);
// Move(w[1], lpsz^, cchLength*2);
// Result := cchLength;
//{$ENDIF}
//end;
function GetTextExtentPointW(DC: HDC; Str: PWideChar; Count: Integer;
var Size: TSize): BOOL;
{$IFDEF MSWINDOWS}
begin
Result := Windows.GetTextExtentPointW(DC, Str, Count, Size);
{$ELSE}
var
s : string;
begin
if Count = 0 then {No text? (don't want range error with w[1])}
begin
Size.cx := 0;
Size.cy := 0;
Result := True;
Exit;
end;
s := HmStringToString(PWideCharToHmString(Str, Count));
Result := LclIntf.GetTextExtentPoint32(DC, PChar(s), Length(s), Size);
{$ENDIF}
end;
function GetTextExtentPoint32W(DC: HDC; Str: PWideChar; Count: Integer;
var Size: TSize): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetTextExtentPoint32W(DC, Str, Count, Size);
{$ELSE}
Result := GetTextExtentPointW(DC, Str, Count, Size); //No Point32W function
{$ENDIF}
end;
{$IFNDEF MSWINDOWS}
var
CurTextAlign : UINT;
CurTA_DC : HDC;
{$ENDIF}
function GetTextAlign(DC: HDC): UINT;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetTextAlign(DC);
{$ELSE}
if DC = CurTA_DC then
Result := CurTextAlign
else
Result := 0;
{$ENDIF}
end;
function SetTextAlign(DC: HDC; Flags: UINT): UINT;
begin
{$IFDEF MSWINDOWS}
Result := Windows.SetTextAlign(DC, Flags);
{$ELSE}
{Save the most recently set DC's text alignment flags with the
assumption that usually working with just one DC at a time that
has non-default alignment flags. (Better solution would be to
save each DC's alignment flags in a collection or something.)
Use these flags in TextOut and ExtTextOut to implement.}
Result := GetTextAlign(DC);
CurTextAlign := Flags;
CurTA_DC := DC;
{$ENDIF}
end;
function GetMapMode(DC: HDC): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetMapMode(DC);
{$ELSE}
// WriteLn('GetMapMode not implemented yet');
{$ENDIF}
end;
function SetMapMode(DC: HDC; p2: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Windows.SetMapMode(DC, p2);
{$ELSE}
// WriteLn('SetMapMode not implemented yet');
{$ENDIF}
end;
function SetViewportExtEx(DC: HDC; XExt, YExt: Integer; Size: PSize): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.SetViewportExtEx(DC, XExt, YExt, Size);
{$ELSE}
// Result := LclIntf.SetViewportExtEx(DC, XExt, YExt, Size);
Result := True;
{$ENDIF}
end;
function GetViewportExtEx(DC: HDC; var Size: TSize): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetViewportExtEx(DC, Size);
{$ELSE} //Since normally used with GetWindowExtEx, just return 1 for now.
Size.cx := 1;
Size.cy := 1;
Result := True;
{$ENDIF}
end;
function GetWindowOrgEx(DC: HDC; var Point: TPoint): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetWindowOrgEx(DC, Point);
{$ELSE}
if DC <> 1 then
Result := BOOL(LclIntf.GetWindowOrgEx(DC, @Point))
else //Assume dummy DC is for CUPS printer canvas.
begin
Point.X := 0;
Point.Y := 0;
Result := True;
end;
{$ENDIF}
end;
function SetWindowExtEx(DC: HDC; XExt, YExt: Integer; Size: PSize): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.SetWindowExtEx(DC, XExt, YExt, Size);
{$ELSE}
Result := True;
{$ENDIF}
end;
function GetWindowExtEx(DC: HDC; var Size: TSize): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetWindowExtEx(DC, Size);
{$ELSE} //Since normally used with GetViewportExtEx, just return 1 for now.
Size.cx := 1;
Size.cy := 1;
Result := True;
{$ENDIF}
end;
{$IFNDEF MSWINDOWS}
function GetDeviceCaps(DC: HDC; Index: Integer): Integer;
begin
if DC <> 1 then
begin
{First check for Index values that may not be implemented in widgetset}
if Index = PLANES then
Result := 1
else if Index = NUMCOLORS then
Result := 100 {Return large enough value so not BxW device}
else
Result := LclIntf.GetDeviceCaps(DC, Index);
end
else //Assume dummy DC is for CUPS printer canvas.
begin
case Index of
LOGPIXELSX : Result := Printer.XDPI;
LOGPIXELSY : Result := Printer.YDPI;
PHYSICALOFFSETX : Result := Printer.PaperSize.PaperRect.WorkRect.Left;
PHYSICALOFFSETY : Result := Printer.PaperSize.PaperRect.WorkRect.Top;
end;
end;
end;
{$ENDIF}
function TextOutW(DC: HDC; X, Y: Integer; Str: PWideChar; Count: Integer): BOOL;
{$IFDEF MSWINDOWS}
begin
Result := Windows.TextOutW(DC, X, Y, Str, Count);
{$ELSE}
var
TM : TEXTMETRIC;
s : string;
begin
if Count = 0 then {Nothing to output? (don't want range error with w[1])}
begin
Result := True;
Exit;
end;
if CurTA_DC = DC then
begin //Adjust reference point here since not done in widgetset
GetTextMetrics(DC, TM);
if (CurTextAlign and TA_BASELINE) <> 0 then
Y := Y - (TM.tmHeight - TM.tmDescent);
end;
s := HmStringToString(PWideCharToHmString(Str, Count));
Result := TextOut(DC, X, Y, PChar(s), Length(s));
{Note not calling LclIntf's TextOut}
{$ENDIF}
end;
function ExtTextOutW(DC: HDC; X, Y: Integer; Options: Longint; Rect: PRect;
Str: PWideChar; Count: Longint; Dx: PInteger): BOOL;
{$IFDEF MSWINDOWS}
begin
Result := Windows.ExtTextOutW(DC, X, Y, Options, Rect, Str, Count, Dx);
{$ELSE}
var
TM : TEXTMETRIC;
s : string;
begin
if Count = 0 then {Nothing to output? (don't want range error with w[1])}
begin
Result := True;
Exit;
end;
if CurTA_DC = DC then
begin //Adjust reference point here since not done in widgetset
GetTextMetrics(DC, TM);
if (CurTextAlign and TA_BASELINE) <> 0 then
Y := Y - (TM.tmHeight - TM.tmDescent);
end;
s := HmStringToString(PWideCharToHmString(Str, Count));
Result := ExtTextOut(DC, X, Y, Options, Rect, PChar(s), Length(s), Dx);
{Note not calling LclIntf's ExtTextOut}
{$ENDIF}
end;
function DrawTextW(hDC: HDC; Str: PWideChar; Count: Integer;
var lpRect: TRect; uFormat: UINT): Integer;
{$IFDEF MSWINDOWS}
begin
Result := Windows.DrawTextW(hDC, Str, Count, lpRect, uFormat);
{$ELSE}
var
s : string;
begin
s := HmStringToString(PWideCharToHmString(Str, Count));
Result := LclIntf.DrawText(hDC, PChar(s), Length(s), lpRect, uFormat);
{$ENDIF}
end;
function PatBlt(DC: HDC; X, Y, Width, Height: Integer; Rop: DWORD): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.PatBlt(DC, X, Y, Width, Height, Rop);
{$ELSE}
WriteLn('PatBlt not implemented yet');
{$ENDIF}
end;
function SetTextJustification(DC: HDC; BreakExtra, BreakCount: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Integer(Windows.SetTextJustification(DC, BreakExtra, BreakCount));
{$ELSE}
// WriteLn('SetTextJustification not implemented yet');
{$ENDIF}
end;
function GetBrushOrgEx(DC: HDC; var lppt: TPoint): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetBrushOrgEx(DC, lppt);
{$ELSE}
WriteLn('GetBrushOrgEx not implemented yet');
{$ENDIF}
end;
function SetBrushOrgEx(DC: HDC; X, Y: Integer; PrevPt: PPoint): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.SetBrushOrgEx(DC, X, Y, PrevPt);
{$ELSE}
// WriteLn('SetBrushOrgEx not implemented yet');
{$ENDIF}
end;
function timeGetTime: DWORD;
begin
Result := GetTickCount;
// Result := MMSystem.timeGetTime; //If take out, don't need MMSystem in uses.
// Result := Trunc(TimeStampToMSecs(DateTimeToTimeStamp(Now))); //Can overflow.
end;
function GetTextExtentExPointW(DC: HDC; Str: PWideChar; Count, p4: Integer; p5, p6: PInteger; var p7: TSize): BOOL;
{$IFDEF MSWINDOWS}
begin
Result := Windows.GetTextExtentExPointW(DC, Str, Count, p4, p5, p6, p7);
{$ELSE}
var
s: String;
begin
s := HmStringToString(PWideCharToHmString(Str, Count));
Result := WidgetSet.GetTextExtentExPoint(DC, PChar(s), Length(s), p4, p5, p6, p7);
{$ENDIF}
end;
function GetTempPath(nBufferLength: DWORD; lpBuffer: PChar): DWORD;
begin
{$IFDEF MSWINDOWS}
Result := Windows.GetTempPath(nBufferLength, lpBuffer);
{$ELSE}
if Length(GetTempDir) >= nBufferLength then {Buffer not big enough?}
begin
Move(GetTempDir[1], lpBuffer, nBufferLength);
Result := Length(GetTempDir)+1;
end
else
begin
Move(GetTempDir[1], lpBuffer, Length(GetTempDir)+1); //Include terminating null
Result := Length(GetTempDir);
end;
{$ENDIF}
end;
function CharNextEx(CodePage: Word; lpCurrentChar: LPCSTR; dwFlags: DWORD): LPSTR;
begin
{$IFDEF MSWINDOWS}
Result := Windows.CharNextExA(CodePage, lpCurrentChar, dwFlags); //Note "A"
{$ELSE}
Result := lpCurrentChar + 1; //For now.
{$ENDIF}
end;
function ExtCreateRegion(XForm: PXForm; Count: DWORD; const RgnData: TRgnData): HRGN;
begin
{$IFDEF MSWINDOWS}
Result := Windows.ExtCreateRegion(XForm, Count, RgnData);
{$ELSE}
WriteLn('ExtCreateRegion not implemented yet');
{$ENDIF}
end;
function ExtCreatePen(PenStyle, Width: DWORD; const Brush: TLogBrush;
StyleCount: DWORD; Style: Pointer): HPEN;
begin
{$IFDEF MSWINDOWS}
Result := Windows.ExtCreatePen(PenStyle, Width, Brush, StyleCount, Style);
{$ELSE}
WriteLn('ExtCreatePen not implemented yet');
{$ENDIF}
end;
function BeginPath(DC: HDC): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.BeginPath(DC);
{$ELSE}
WriteLn('BeginPath not implemented yet');
{$ENDIF}
end;
function EndPath(DC: HDC): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.EndPath(DC);
{$ELSE}
WriteLn('EndPath not implemented yet');
{$ENDIF}
end;
function StrokePath(DC: HDC): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.StrokePath(DC);
{$ELSE}
WriteLn('StrokePath not implemented yet');
{$ENDIF}
end;
function CloseFigure(DC: HDC): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.CloseFigure(DC);
{$ELSE}
WriteLn('CloseFigure not implemented yet');
{$ENDIF}
end;
function ClipCursor(lpRect: PRect): BOOL;
begin
{$IFDEF MSWINDOWS}
Result := Windows.ClipCursor(lpRect);
{$ELSE}
WriteLn('ClipCursor not implemented yet');
{$ENDIF}
end;
initialization
htExpectsUTF8 := WidgetSet.LCLPlatform in [lpCarbon, lpQt, lpGTK2, lpWin32];
end.