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{
fpGUI - Free Pascal GUI Toolkit
Copyright (C) 2006 - 2010 See the file AUTHORS.txt, included in this
distribution, for details of the copyright.
See the file COPYING.modifiedLGPL, included in this distribution,
for details about redistributing fpGUI.
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.
Description:
Xft interface functions
}
unit fpg_xft_x11;
{$mode objfpc}{$H+}
{$linklib Xft}
interface
uses
Classes
,SysUtils
,X
,XLib
,Xutil
;
const
{$IF Defined(DARWIN)}
libXft = 'libXft.dylib';
{$LINKLIB libXft}
fclib = 'libfontconfig.dylib';
{$LINKLIB libfontconfig}
{$ELSE}
libXft = 'libXft.so';
fclib = 'fontconfig';
{$IFEND}
type
TPicture = longword;
TXftDraw = record
dummy : Pointer;
end;
PXftDraw = ^TXftDraw;
TXftFont = record
ascent : integer;
descent : integer;
height : integer;
max_advance_width : integer;
ptr1 : Pointer; // charset
ptr2 : Pointer; // pattern
end;
PXftFont = ^TXftFont;
TXRenderColor = record
red : word;
green : word;
blue : word;
alpha : word;
end;
TXftColor = record
pixel : ptrint;
color : TXRenderColor;
end;
TXGlyphInfo = packed record
width : word;
height : word;
x : smallint;
y : smallint;
xOff : smallint;
yOff : smallint;
end;
TFcPattern = record
dummy : integer;
end;
PFcPattern = ^TFcPattern;
PPFcPattern = ^PFcPattern;
TFcFontSet = packed record
nfont : integer;
sfont : integer;
fonts : PPFcPattern;
end;
PFcFontSet = ^TFcFontSet;
const
// FC_FAMILY : PChar = 'family';
// FC_SIZE : PChar = 'size';
// FC_SCALABLE : PChar = 'scalable';
FC_FAMILY = 'family'; //* String */
FC_STYLE = 'style'; //* String */
FC_SLANT = 'slant'; //* Int */
FC_WEIGHT = 'weight'; //* Int */
FC_SIZE = 'size'; //* Double */
FC_ASPECT = 'aspect'; //* Double */
FC_PIXEL_SIZE = 'pixelsize'; //* Double */
FC_SPACING = 'spacing'; //* Int */
FC_FOUNDRY = 'foundry'; //* String */
FC_ANTIALIAS = 'antialias'; //* Bool (depends) */
FC_HINTING = 'hinting'; //* Bool (true) */
FC_VERTICAL_LAYOUT = 'verticallayout';//* Bool (false) */
FC_AUTOHINT = 'autohint'; //* Bool (false) */
FC_GLOBAL_ADVANCE = 'globaladvance'; //* Bool (true) */
FC_FILE = 'file'; //* String */
FC_INDEX = 'index'; //* Int */
FC_FT_FACE = 'ftface'; //* FT_Face */
FC_RASTERIZER = 'rasterizer'; //* String */
FC_OUTLINE = 'outline'; //* Bool */
FC_SCALABLE = 'scalable'; //* Bool */
FC_SCALE = 'scale'; //* double */
FC_DPI = 'dpi'; //* double */
FC_RGBA = 'rgba'; //* Int */
FC_MINSPACE = 'minspace'; //* Bool use minimum line spacing */
FC_SOURCE = 'source'; //* String (X11, freetype) */
FC_CHARSET = 'charset'; //* CharSet */
FC_LANG = 'lang'; //* String RFC 3066 langs */
FC_FONTVERSION = 'fontversion'; //* Int from 'head' table */
FC_MATRIX = 'matrix';
FC_CHAR_WIDTH = 'charwidth';
FC_WEIGHT_BOLD = 200;
FC_SLANT_ITALIC = 100;
FC_PROPORTIONAL = 0;
FC_MONO = 100;
FcTypeVoid = 0;
FcTypeInteger = 1;
FcTypeDouble = 2;
FcTypeString = 3;
FcTypeBool = 4;
FcTypeMatrix = 5;
FcTypeCharSet = 6;
FcTypeFTFace = 7;
FcTypeLangSet = 8;
function XftDrawCreate(display : PXDisplay; win : TXID; vis : PVisual; colorm : longint) : PXftDraw; cdecl; external libXft;
procedure XftDrawChange(xftd : PXftDraw; win : TXID); cdecl; external libXft;
procedure XftDrawDestroy(draw : PXftDraw); cdecl; external libXft;
function XftDrawPicture(draw : PXftDraw) : TPicture; cdecl; external libXft;
function XftFontOpenName(display : PXDisplay; scr : integer; par3 : PChar) : PXftFont; cdecl; external libXft;
procedure XftFontClose(display : PXDisplay; fnt : PXftFont); cdecl; external libXft;
procedure XftDrawStringUtf8(draw : PXftDraw; var col : TXftColor; fnt : PXftFont; x,y : integer; txt : PChar; len : integer); cdecl; external libXft;
procedure XftDrawString8(draw : PXftDraw; var col : TXftColor; fnt : PXftFont; x,y : integer; txt : PChar; len : integer); cdecl; external libXft;
procedure XftDrawString16(draw : PXftDraw; var col : TXftColor; fnt : PXftFont; x,y : integer; txt : PChar; len : integer); cdecl; external libXft;
procedure XftTextExtentsUtf8(display : PXDisplay; fnt : PXftFont; txt : PChar; len : integer; var extents : TXGlyphInfo); cdecl; external libXft;
procedure XftTextExtents8(display : PXDisplay; fnt : PXftFont; txt : PChar; len : integer; var extents : TXGlyphInfo); cdecl; external libXft;
procedure XftTextExtents16(display : PXDisplay; fnt : PXftFont; txt : PChar; len : integer; var extents : TXGlyphInfo); cdecl; external libXft;
//function XftGlyphExists(display : PXDisplay; fnt : PXftFont; ch : integer) : longbool; cdecl; external libXft;
//procedure XftDrawSetClipRectangles(draw : PXftDraw; xorigin, yorigin : integer; rect : PXRectangle; rnum : integer); cdecl; external libXft;
procedure XftDrawSetClip(draw : PXftDraw; rg : TRegion); cdecl; external libXft;
function XftListFonts(display : PXDisplay; screen : integer; params : array of const) : PFcFontSet; cdecl; external libXft;
function XftNameUnparse(pat : PFcPattern; dest : PChar; destlen : integer) : boolean; cdecl; external libXft;
procedure FcFontSetDestroy(fsp : PFcFontSet); cdecl; external fclib;
//function FcFontList(config: PFcConfig; p:PFcPattern; os:PFcObjectSet): PFcFontSet;cdecl; external fclib name 'FcFontList';
implementation
end.
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