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|
# -*- coding: utf-8 -*-
# -----------------------------------------------------------------------------
# FreeType high-level python API - Copyright 2011-2015 Nicolas P. Rougier
# Distributed under the terms of the new BSD license.
# -----------------------------------------------------------------------------
'''
Freetype raw API
This is the raw ctypes freetype binding.
'''
import os
import platform
from ctypes import *
import ctypes.util
import freetype
from freetype.ft_types import *
from freetype.ft_enums import *
from freetype.ft_errors import *
from freetype.ft_structs import *
# First, look for a bundled FreeType shared object on the top-level of the
# installed freetype-py module.
system = platform.system()
if system == 'Windows':
library_name = 'libfreetype.dll'
elif system == 'Darwin':
library_name = 'libfreetype.dylib'
else:
library_name = 'libfreetype.so'
filename = os.path.join(os.path.dirname(freetype.__file__), library_name)
# If no bundled shared object is found, look for a system-wide installed one.
if not os.path.exists(filename):
# on windows all ctypes does when checking for the library
# is to append .dll to the end and look for an exact match
# within any entry in PATH.
filename = ctypes.util.find_library('freetype')
if filename is None:
if platform.system() == 'Windows':
# Check current working directory for dll as ctypes fails to do so
filename = os.path.join(os.path.realpath('.'), "freetype.dll")
else:
filename = library_name
try:
_lib = ctypes.CDLL(filename)
except (OSError, TypeError):
_lib = None
raise RuntimeError('Freetype library not found')
FT_Init_FreeType = _lib.FT_Init_FreeType
FT_Done_FreeType = _lib.FT_Done_FreeType
FT_Library_Version = _lib.FT_Library_Version
try:
FT_Library_SetLcdFilter= _lib.FT_Library_SetLcdFilter
except AttributeError:
def FT_Library_SetLcdFilter (*args, **kwargs):
return 0
try:
FT_Library_SetLcdFilterWeights = _lib.FT_Library_SetLcdFilterWeights
except AttributeError:
pass
FT_New_Face = _lib.FT_New_Face
FT_New_Memory_Face = _lib.FT_New_Memory_Face
FT_Open_Face = _lib.FT_Open_Face
FT_Attach_File = _lib.FT_Attach_File
FT_Attach_Stream = _lib.FT_Attach_Stream
try:
FT_Reference_Face = _lib.FT_Reference_Face
except AttributeError:
pass
FT_Done_Face = _lib.FT_Done_Face
FT_Done_Glyph = _lib.FT_Done_Glyph
FT_Select_Size = _lib.FT_Select_Size
FT_Request_Size = _lib.FT_Request_Size
FT_Set_Char_Size = _lib.FT_Set_Char_Size
FT_Set_Pixel_Sizes = _lib.FT_Set_Pixel_Sizes
FT_Load_Glyph = _lib.FT_Load_Glyph
FT_Load_Char = _lib.FT_Load_Char
FT_Set_Transform = _lib.FT_Set_Transform
FT_Render_Glyph = _lib.FT_Render_Glyph
FT_Get_Kerning = _lib.FT_Get_Kerning
FT_Get_Track_Kerning = _lib.FT_Get_Track_Kerning
FT_Get_Glyph_Name = _lib.FT_Get_Glyph_Name
FT_Get_Glyph = _lib.FT_Get_Glyph
FT_Glyph_Get_CBox = _lib.FT_Glyph_Get_CBox
FT_Get_Postscript_Name = _lib.FT_Get_Postscript_Name
FT_Get_Postscript_Name.restype = c_char_p
FT_Select_Charmap = _lib.FT_Select_Charmap
FT_Set_Charmap = _lib.FT_Set_Charmap
FT_Get_Charmap_Index = _lib.FT_Get_Charmap_Index
FT_Get_CMap_Language_ID= _lib.FT_Get_CMap_Language_ID
try:
#introduced between 2.2.x and 2.3.x
FT_Get_CMap_Format = _lib.FT_Get_CMap_Format
except AttributeError:
pass
FT_Get_Char_Index = _lib.FT_Get_Char_Index
FT_Get_First_Char = _lib.FT_Get_First_Char
FT_Get_Next_Char = _lib.FT_Get_Next_Char
FT_Get_Name_Index = _lib.FT_Get_Name_Index
FT_Get_SubGlyph_Info = _lib.FT_Get_SubGlyph_Info
try:
FT_Get_FSType_Flags = _lib.FT_Get_FSType_Flags
FT_Get_FSType_Flags.restype = c_ushort
except AttributeError:
pass
FT_Get_X11_Font_Format = _lib.FT_Get_X11_Font_Format
FT_Get_X11_Font_Format.restype = c_char_p
FT_Get_Sfnt_Name_Count = _lib.FT_Get_Sfnt_Name_Count
FT_Get_Sfnt_Name = _lib.FT_Get_Sfnt_Name
try:
# introduced between 2.2.x and 2.3.x
FT_Get_Advance = _lib.FT_Get_Advance
except AttributeError:
pass
FT_Outline_GetInsideBorder = _lib.FT_Outline_GetInsideBorder
FT_Outline_GetOutsideBorder = _lib.FT_Outline_GetOutsideBorder
FT_Outline_Get_BBox = _lib.FT_Outline_Get_BBox
FT_Outline_Get_CBox = _lib.FT_Outline_Get_CBox
try:
# since 2.4.10
FT_Outline_EmboldenXY = _lib.FT_Outline_EmboldenXY
except AttributeError:
pass
FT_Stroker_New = _lib.FT_Stroker_New
FT_Stroker_Set = _lib.FT_Stroker_Set
FT_Stroker_Rewind = _lib.FT_Stroker_Rewind
FT_Stroker_ParseOutline = _lib.FT_Stroker_ParseOutline
FT_Stroker_BeginSubPath = _lib.FT_Stroker_BeginSubPath
FT_Stroker_EndSubPath = _lib.FT_Stroker_EndSubPath
FT_Stroker_LineTo = _lib.FT_Stroker_LineTo
FT_Stroker_ConicTo = _lib.FT_Stroker_ConicTo
FT_Stroker_CubicTo = _lib.FT_Stroker_CubicTo
FT_Stroker_GetBorderCounts = _lib.FT_Stroker_GetBorderCounts
FT_Stroker_ExportBorder = _lib.FT_Stroker_ExportBorder
FT_Stroker_GetCounts = _lib.FT_Stroker_GetCounts
FT_Stroker_Export = _lib.FT_Stroker_Export
FT_Stroker_Done = _lib.FT_Stroker_Done
FT_Glyph_Stroke = _lib.FT_Glyph_Stroke
FT_Glyph_StrokeBorder = _lib.FT_Glyph_StrokeBorder
FT_Glyph_To_Bitmap = _lib.FT_Glyph_To_Bitmap
# FT_Property_Get/FT_Property_Set requires FreeType 2.7.x+
try:
FT_Property_Get = _lib.FT_Property_Get
FT_Property_Set = _lib.FT_Property_Set
except AttributeError:
pass
# These two are only found when TT debugger is enabled
try:
TT_New_Context = _lib.TT_New_Context
TT_RunIns = _lib.TT_RunIns
except AttributeError:
pass
# Routines for variable font support. These were introduced at different
# points in FreeType's history (except for FT_Get_MM_Var which has been
# around for a long time).
FT_Get_MM_Var = _lib.FT_Get_MM_Var # v2.old
# -- since 2.8.1 for sure (some 2.7.1 or possibly older, but to be safe,
# implementation should check FT version >= 2.8.1
try:
FT_Get_Var_Axis_Flags = _lib.FT_Get_Var_Axis_Flags
FT_Get_Var_Blend_Coordinates = _lib.FT_Get_Var_Blend_Coordinates
FT_Get_Var_Design_Coordinates = _lib.FT_Get_Var_Design_Coordinates
FT_Set_Var_Blend_Coordinates = _lib.FT_Set_Var_Blend_Coordinates
FT_Set_Var_Design_Coordinates = _lib.FT_Set_Var_Design_Coordinates
except AttributeError:
pass
# -- since v2.9; we can work around if these are not present.
try:
FT_Done_MM_Var = _lib.FT_Done_MM_Var
FT_Set_Named_Instance = _lib.FT_Set_Named_Instance
except AttributeError:
pass
# Wholesale import of 102 routines which can be reasonably expected
# to be found in freetype 2.2.x onwards. Some of these might need
# to be protected with try:/except AttributeError: in some freetype builds.
FTC_CMapCache_Lookup = _lib.FTC_CMapCache_Lookup
FTC_CMapCache_New = _lib.FTC_CMapCache_New
FTC_ImageCache_Lookup = _lib.FTC_ImageCache_Lookup
FTC_ImageCache_New = _lib.FTC_ImageCache_New
FTC_Manager_Done = _lib.FTC_Manager_Done
FTC_Manager_LookupFace = _lib.FTC_Manager_LookupFace
FTC_Manager_LookupSize = _lib.FTC_Manager_LookupSize
FTC_Manager_New = _lib.FTC_Manager_New
FTC_Manager_RemoveFaceID = _lib.FTC_Manager_RemoveFaceID
FTC_Manager_Reset = _lib.FTC_Manager_Reset
FTC_Node_Unref = _lib.FTC_Node_Unref
FTC_SBitCache_Lookup = _lib.FTC_SBitCache_Lookup
FTC_SBitCache_New = _lib.FTC_SBitCache_New
FT_Activate_Size = _lib.FT_Activate_Size
FT_Add_Default_Modules = _lib.FT_Add_Default_Modules
FT_Add_Module = _lib.FT_Add_Module
FT_Angle_Diff = _lib.FT_Angle_Diff
FT_Atan2 = _lib.FT_Atan2
FT_Bitmap_Convert = _lib.FT_Bitmap_Convert
FT_Bitmap_Copy = _lib.FT_Bitmap_Copy
FT_Bitmap_Done = _lib.FT_Bitmap_Done
FT_Bitmap_Embolden = _lib.FT_Bitmap_Embolden
FT_Bitmap_New = _lib.FT_Bitmap_New
FT_CeilFix = _lib.FT_CeilFix
FT_ClassicKern_Free = _lib.FT_ClassicKern_Free
FT_ClassicKern_Validate = _lib.FT_ClassicKern_Validate
FT_Cos = _lib.FT_Cos
FT_DivFix = _lib.FT_DivFix
FT_Done_Library = _lib.FT_Done_Library
FT_Done_Size = _lib.FT_Done_Size
FT_FloorFix = _lib.FT_FloorFix
try:
# Not in default windows build of 2.8.x
FT_Get_BDF_Charset_ID = _lib.FT_Get_BDF_Charset_ID
FT_Get_BDF_Property = _lib.FT_Get_BDF_Property
except AttributeError:
pass
try:
FT_Get_Color_Glyph_Layer = _lib.FT_Get_Color_Glyph_Layer # 2.10
FT_Get_Color_Glyph_Layer.restype = FT_Bool
FT_Get_Color_Glyph_Layer.argtypes = [FT_Face, FT_UInt, POINTER(FT_UInt), POINTER(FT_UInt), POINTER(FT_LayerIterator)]
FT_Get_Color_Glyph_Paint = _lib.FT_Get_Color_Glyph_Paint # 2.13
FT_Get_Color_Glyph_Paint.restype = FT_Bool
FT_Get_Color_Glyph_Paint.argtypes = [FT_Face, FT_UInt,
FT_UInt, # FT_Color_Root_Transform enums
POINTER(FT_OpaquePaint)]
except AttributeError:
pass
try:
FT_Face_GetCharVariantIndex = _lib.FT_Face_GetCharVariantIndex
FT_Face_GetCharVariantIndex.argtypes = [FT_Face, FT_ULong, FT_ULong]
FT_Face_GetCharVariantIndex.restype = FT_UInt
FT_Face_GetCharVariantIsDefault = _lib.FT_Face_GetCharVariantIsDefault
FT_Face_GetCharVariantIsDefault.argtypes = [FT_Face, FT_ULong, FT_ULong]
FT_Face_GetCharVariantIsDefault.restype = FT_Int
FT_Face_GetVariantSelectors = _lib.FT_Face_GetVariantSelectors
FT_Face_GetVariantSelectors.argtypes = [FT_Face]
FT_Face_GetVariantSelectors.restype = POINTER(FT_UInt32)
FT_Face_GetVariantsOfChar = _lib.FT_Face_GetVariantsOfChar
FT_Face_GetVariantsOfChar.argtypes = [FT_Face, FT_ULong]
FT_Face_GetVariantsOfChar.restype = POINTER(FT_UInt32)
FT_Face_GetCharsOfVariant = _lib.FT_Face_GetCharsOfVariant
FT_Face_GetVariantsOfChar.argtypes = [FT_Face, FT_ULong]
FT_Face_GetCharsOfVariant.restype = POINTER(FT_UInt32)
except AttributeError:
pass
FT_Get_Module = _lib.FT_Get_Module
FT_Get_Multi_Master = _lib.FT_Get_Multi_Master
FT_Get_PFR_Advance = _lib.FT_Get_PFR_Advance
FT_Get_PFR_Kerning = _lib.FT_Get_PFR_Kerning
FT_Get_PFR_Metrics = _lib.FT_Get_PFR_Metrics
FT_Get_PS_Font_Info = _lib.FT_Get_PS_Font_Info
FT_Get_PS_Font_Private = _lib.FT_Get_PS_Font_Private
FT_Get_Renderer = _lib.FT_Get_Renderer
FT_Get_Sfnt_Table = _lib.FT_Get_Sfnt_Table
FT_Get_TrueType_Engine_Type = _lib.FT_Get_TrueType_Engine_Type
FT_Get_WinFNT_Header = _lib.FT_Get_WinFNT_Header
FT_Glyph_Copy = _lib.FT_Glyph_Copy
FT_GlyphSlot_Embolden = _lib.FT_GlyphSlot_Embolden
FT_GlyphSlot_Oblique = _lib.FT_GlyphSlot_Oblique
FT_GlyphSlot_Own_Bitmap = _lib.FT_GlyphSlot_Own_Bitmap
FT_Glyph_Transform = _lib.FT_Glyph_Transform
FT_Has_PS_Glyph_Names = _lib.FT_Has_PS_Glyph_Names
FT_List_Add = _lib.FT_List_Add
FT_List_Finalize = _lib.FT_List_Finalize
FT_List_Find = _lib.FT_List_Find
FT_List_Insert = _lib.FT_List_Insert
FT_List_Iterate = _lib.FT_List_Iterate
FT_List_Remove = _lib.FT_List_Remove
FT_List_Up = _lib.FT_List_Up
FT_Load_Sfnt_Table = _lib.FT_Load_Sfnt_Table
FT_Matrix_Invert = _lib.FT_Matrix_Invert
FT_Matrix_Multiply = _lib.FT_Matrix_Multiply
FT_MulDiv = _lib.FT_MulDiv
FT_MulFix = _lib.FT_MulFix
FT_New_Library = _lib.FT_New_Library
FT_New_Size = _lib.FT_New_Size
FT_OpenType_Free = _lib.FT_OpenType_Free
FT_OpenType_Validate = _lib.FT_OpenType_Validate
FT_Outline_Check = _lib.FT_Outline_Check
FT_Outline_Copy = _lib.FT_Outline_Copy
FT_Outline_Decompose = _lib.FT_Outline_Decompose
FT_Outline_Done = _lib.FT_Outline_Done
FT_Outline_Embolden = _lib.FT_Outline_Embolden
FT_Outline_Get_Bitmap = _lib.FT_Outline_Get_Bitmap
FT_Outline_Get_Orientation = _lib.FT_Outline_Get_Orientation
FT_Outline_New = _lib.FT_Outline_New
FT_Outline_Render = _lib.FT_Outline_Render
FT_Outline_Reverse = _lib.FT_Outline_Reverse
FT_Outline_Transform = _lib.FT_Outline_Transform
FT_Outline_Translate = _lib.FT_Outline_Translate
FT_Remove_Module = _lib.FT_Remove_Module
FT_Render_Glyph = _lib.FT_Render_Glyph
FT_RoundFix = _lib.FT_RoundFix
FT_Set_Debug_Hook = _lib.FT_Set_Debug_Hook
FT_Set_MM_Blend_Coordinates = _lib.FT_Set_MM_Blend_Coordinates
FT_Set_MM_Design_Coordinates = _lib.FT_Set_MM_Design_Coordinates
FT_Set_Renderer = _lib.FT_Set_Renderer
FT_Sfnt_Table_Info = _lib.FT_Sfnt_Table_Info
FT_Sin = _lib.FT_Sin
FT_Stream_OpenGzip = _lib.FT_Stream_OpenGzip
FT_Stream_OpenLZW = _lib.FT_Stream_OpenLZW
FT_Tan = _lib.FT_Tan
FT_TrueTypeGX_Free = _lib.FT_TrueTypeGX_Free
FT_TrueTypeGX_Validate = _lib.FT_TrueTypeGX_Validate
FT_Vector_From_Polar = _lib.FT_Vector_From_Polar
FT_Vector_Length = _lib.FT_Vector_Length
FT_Vector_Polarize = _lib.FT_Vector_Polarize
FT_Vector_Rotate = _lib.FT_Vector_Rotate
FT_Vector_Transform = _lib.FT_Vector_Transform
FT_Vector_Unit = _lib.FT_Vector_Unit
# Wholesale import ends
|
