use core::fmt;
use ffi;
pub type FtResult<T> = Result<T, Error>;
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
#[repr(i32)]
pub enum Error {
Ok = ffi::FT_Err_Ok,
CannotOpenResource = ffi::FT_Err_Cannot_Open_Resource,
UnknownFileFormat = ffi::FT_Err_Unknown_File_Format,
InvalidFileFormat = ffi::FT_Err_Invalid_File_Format,
InvalidVersion = ffi::FT_Err_Invalid_Version,
LowerModuleVersion = ffi::FT_Err_Lower_Module_Version,
InvalidArgument = ffi::FT_Err_Invalid_Argument,
UnimplementedFeature = ffi::FT_Err_Unimplemented_Feature,
InvalidTable = ffi::FT_Err_Invalid_Table,
InvalidOffset = ffi::FT_Err_Invalid_Offset,
ArrayTooLarge = ffi::FT_Err_Array_Too_Large,
MissingModule = ffi::FT_Err_Missing_Module,
MissingProperty = ffi::FT_Err_Missing_Property,
InvalidGlyphIndex = ffi::FT_Err_Invalid_Glyph_Index,
InvalidCharacterCode = ffi::FT_Err_Invalid_Character_Code,
InvalidGlyphFormat = ffi::FT_Err_Invalid_Glyph_Format,
CannotRenderGlyph = ffi::FT_Err_Cannot_Render_Glyph,
InvalidOutline = ffi::FT_Err_Invalid_Outline,
InvalidComposite = ffi::FT_Err_Invalid_Composite,
TooManyHints = ffi::FT_Err_Too_Many_Hints,
InvalidPixelSize = ffi::FT_Err_Invalid_Pixel_Size,
InvalidHandle = ffi::FT_Err_Invalid_Handle,
InvalidLibraryHandle = ffi::FT_Err_Invalid_Library_Handle,
InvalidDriverHandle = ffi::FT_Err_Invalid_Driver_Handle,
InvalidFaceHandle = ffi::FT_Err_Invalid_Face_Handle,
InvalidSizeHandle = ffi::FT_Err_Invalid_Size_Handle,
InvalidSlotHandle = ffi::FT_Err_Invalid_Slot_Handle,
InvalidCharMapHandle = ffi::FT_Err_Invalid_CharMap_Handle,
InvalidCacheHandle = ffi::FT_Err_Invalid_Cache_Handle,
InvalidStreamHandle = ffi::FT_Err_Invalid_Stream_Handle,
TooManyDrivers = ffi::FT_Err_Too_Many_Drivers,
TooManyExtensions = ffi::FT_Err_Too_Many_Extensions,
OutOfMemory = ffi::FT_Err_Out_Of_Memory,
UnlistedObject = ffi::FT_Err_Unlisted_Object,
CannotOpenStream = ffi::FT_Err_Cannot_Open_Stream,
InvalidStreamSeek = ffi::FT_Err_Invalid_Stream_Seek,
InvalidStreamSkip = ffi::FT_Err_Invalid_Stream_Skip,
InvalidStreamRead = ffi::FT_Err_Invalid_Stream_Read,
InvalidStreamOperation = ffi::FT_Err_Invalid_Stream_Operation,
InvalidFrameOperation = ffi::FT_Err_Invalid_Frame_Operation,
NestedFrameAccess = ffi::FT_Err_Nested_Frame_Access,
InvalidFrameRead = ffi::FT_Err_Invalid_Frame_Read,
RasterUninitialized = ffi::FT_Err_Raster_Uninitialized,
RasterCorrupted = ffi::FT_Err_Raster_Corrupted,
RasterOverflow = ffi::FT_Err_Raster_Overflow,
RasterNegativeHeight = ffi::FT_Err_Raster_Negative_Height,
TooManyCaches = ffi::FT_Err_Too_Many_Caches,
InvalidOpcode = ffi::FT_Err_Invalid_Opcode,
TooFewArguments = ffi::FT_Err_Too_Few_Arguments,
StackOverflow = ffi::FT_Err_Stack_Overflow,
CodeOverflow = ffi::FT_Err_Code_Overflow,
BadArgument = ffi::FT_Err_Bad_Argument,
DivideByZero = ffi::FT_Err_Divide_By_Zero,
InvalidReference = ffi::FT_Err_Invalid_Reference,
DebugOpCode = ffi::FT_Err_Debug_OpCode,
ENDFInExecStream = ffi::FT_Err_ENDF_In_Exec_Stream,
NestedDEFS = ffi::FT_Err_Nested_DEFS,
InvalidCodeRange = ffi::FT_Err_Invalid_CodeRange,
ExecutionTooLong = ffi::FT_Err_Execution_Too_Long,
TooManyFunctionDefs = ffi::FT_Err_Too_Many_Function_Defs,
TooManyInstructionDefs = ffi::FT_Err_Too_Many_Instruction_Defs,
TableMissing = ffi::FT_Err_Table_Missing,
HorizHeaderMissing = ffi::FT_Err_Horiz_Header_Missing,
LocationsMissing = ffi::FT_Err_Locations_Missing,
NameTableMissing = ffi::FT_Err_Name_Table_Missing,
CMapTableMissing = ffi::FT_Err_CMap_Table_Missing,
HmtxTableMissing = ffi::FT_Err_Hmtx_Table_Missing,
PostTableMissing = ffi::FT_Err_Post_Table_Missing,
InvalidHorizMetrics = ffi::FT_Err_Invalid_Horiz_Metrics,
InvalidCharMapFormat = ffi::FT_Err_Invalid_CharMap_Format,
InvalidPPem = ffi::FT_Err_Invalid_PPem,
InvalidVertMetrics = ffi::FT_Err_Invalid_Vert_Metrics,
CouldNotFindContext = ffi::FT_Err_Could_Not_Find_Context,
InvalidPostTableFormat = ffi::FT_Err_Invalid_Post_Table_Format,
InvalidPostTable = ffi::FT_Err_Invalid_Post_Table,
Syntax = ffi::FT_Err_Syntax_Error,
StackUnderflow = ffi::FT_Err_Stack_Underflow,
Ignore = ffi::FT_Err_Ignore,
NoUnicodeGlyphName = ffi::FT_Err_No_Unicode_Glyph_Name,
MissingStartfontField = ffi::FT_Err_Missing_Startfont_Field,
MissingFontField = ffi::FT_Err_Missing_Font_Field,
MissingSizeField = ffi::FT_Err_Missing_Size_Field,
MissingFontboundingboxField = ffi::FT_Err_Missing_Fontboundingbox_Field,
MissingCharsField = ffi::FT_Err_Missing_Chars_Field,
MissingStartcharField = ffi::FT_Err_Missing_Startchar_Field,
MissingEncodingField = ffi::FT_Err_Missing_Encoding_Field,
MissingBbxField = ffi::FT_Err_Missing_Bbx_Field,
BbxTooBig = ffi::FT_Err_Bbx_Too_Big,
CorruptedFontHeader = ffi::FT_Err_Corrupted_Font_Header,
CorruptedFontGlyphs = ffi::FT_Err_Corrupted_Font_Glyphs,
Max = ffi::FT_Err_Max,
UnexpectedPixelMode,
InvalidPath,
Unknown
}
impl From<i32> for Error {
fn from(err: i32) -> Self {
match err {
ffi::FT_Err_Ok => Error::Ok,
ffi::FT_Err_Cannot_Open_Resource => Error::CannotOpenResource,
ffi::FT_Err_Unknown_File_Format => Error::UnknownFileFormat,
ffi::FT_Err_Invalid_File_Format => Error::InvalidFileFormat,
ffi::FT_Err_Invalid_Version => Error::InvalidVersion,
ffi::FT_Err_Lower_Module_Version => Error::LowerModuleVersion,
ffi::FT_Err_Invalid_Argument => Error::InvalidArgument,
ffi::FT_Err_Unimplemented_Feature => Error::UnimplementedFeature,
ffi::FT_Err_Invalid_Table => Error::InvalidTable,
ffi::FT_Err_Invalid_Offset => Error::InvalidOffset,
ffi::FT_Err_Array_Too_Large => Error::ArrayTooLarge,
ffi::FT_Err_Missing_Module => Error::MissingModule,
ffi::FT_Err_Missing_Property => Error::MissingProperty,
ffi::FT_Err_Invalid_Glyph_Index => Error::InvalidGlyphIndex,
ffi::FT_Err_Invalid_Character_Code => Error::InvalidCharacterCode,
ffi::FT_Err_Invalid_Glyph_Format => Error::InvalidGlyphFormat,
ffi::FT_Err_Cannot_Render_Glyph => Error::CannotRenderGlyph,
ffi::FT_Err_Invalid_Outline => Error::InvalidOutline,
ffi::FT_Err_Invalid_Composite => Error::InvalidComposite,
ffi::FT_Err_Too_Many_Hints => Error::TooManyHints,
ffi::FT_Err_Invalid_Pixel_Size => Error::InvalidPixelSize,
ffi::FT_Err_Invalid_Handle => Error::InvalidHandle,
ffi::FT_Err_Invalid_Library_Handle => Error::InvalidLibraryHandle,
ffi::FT_Err_Invalid_Driver_Handle => Error::InvalidDriverHandle,
ffi::FT_Err_Invalid_Face_Handle => Error::InvalidFaceHandle,
ffi::FT_Err_Invalid_Size_Handle => Error::InvalidSizeHandle,
ffi::FT_Err_Invalid_Slot_Handle => Error::InvalidSlotHandle,
ffi::FT_Err_Invalid_CharMap_Handle => Error::InvalidCharMapHandle,
ffi::FT_Err_Invalid_Cache_Handle => Error::InvalidCacheHandle,
ffi::FT_Err_Invalid_Stream_Handle => Error::InvalidStreamHandle,
ffi::FT_Err_Too_Many_Drivers => Error::TooManyDrivers,
ffi::FT_Err_Too_Many_Extensions => Error::TooManyExtensions,
ffi::FT_Err_Out_Of_Memory => Error::OutOfMemory,
ffi::FT_Err_Unlisted_Object => Error::UnlistedObject,
ffi::FT_Err_Cannot_Open_Stream => Error::CannotOpenStream,
ffi::FT_Err_Invalid_Stream_Seek => Error::InvalidStreamSeek,
ffi::FT_Err_Invalid_Stream_Skip => Error::InvalidStreamSkip,
ffi::FT_Err_Invalid_Stream_Read => Error::InvalidStreamRead,
ffi::FT_Err_Invalid_Stream_Operation => Error::InvalidStreamOperation,
ffi::FT_Err_Invalid_Frame_Operation => Error::InvalidFrameOperation,
ffi::FT_Err_Nested_Frame_Access => Error::NestedFrameAccess,
ffi::FT_Err_Invalid_Frame_Read => Error::InvalidFrameRead,
ffi::FT_Err_Raster_Uninitialized => Error::RasterUninitialized,
ffi::FT_Err_Raster_Corrupted => Error::RasterCorrupted,
ffi::FT_Err_Raster_Overflow => Error::RasterOverflow,
ffi::FT_Err_Raster_Negative_Height => Error::RasterNegativeHeight,
ffi::FT_Err_Too_Many_Caches => Error::TooManyCaches,
ffi::FT_Err_Invalid_Opcode => Error::InvalidOpcode,
ffi::FT_Err_Too_Few_Arguments => Error::TooFewArguments,
ffi::FT_Err_Stack_Overflow => Error::StackOverflow,
ffi::FT_Err_Code_Overflow => Error::CodeOverflow,
ffi::FT_Err_Bad_Argument => Error::BadArgument,
ffi::FT_Err_Divide_By_Zero => Error::DivideByZero,
ffi::FT_Err_Invalid_Reference => Error::InvalidReference,
ffi::FT_Err_Debug_OpCode => Error::DebugOpCode,
ffi::FT_Err_ENDF_In_Exec_Stream => Error::ENDFInExecStream,
ffi::FT_Err_Nested_DEFS => Error::NestedDEFS,
ffi::FT_Err_Invalid_CodeRange => Error::InvalidCodeRange,
ffi::FT_Err_Execution_Too_Long => Error::ExecutionTooLong,
ffi::FT_Err_Too_Many_Function_Defs => Error::TooManyFunctionDefs,
ffi::FT_Err_Too_Many_Instruction_Defs => Error::TooManyInstructionDefs,
ffi::FT_Err_Table_Missing => Error::TableMissing,
ffi::FT_Err_Horiz_Header_Missing => Error::HorizHeaderMissing,
ffi::FT_Err_Locations_Missing => Error::LocationsMissing,
ffi::FT_Err_Name_Table_Missing => Error::NameTableMissing,
ffi::FT_Err_CMap_Table_Missing => Error::CMapTableMissing,
ffi::FT_Err_Hmtx_Table_Missing => Error::HmtxTableMissing,
ffi::FT_Err_Post_Table_Missing => Error::PostTableMissing,
ffi::FT_Err_Invalid_Horiz_Metrics => Error::InvalidHorizMetrics,
ffi::FT_Err_Invalid_CharMap_Format => Error::InvalidCharMapFormat,
ffi::FT_Err_Invalid_PPem => Error::InvalidPPem,
ffi::FT_Err_Invalid_Vert_Metrics => Error::InvalidVertMetrics,
ffi::FT_Err_Could_Not_Find_Context => Error::CouldNotFindContext,
ffi::FT_Err_Invalid_Post_Table_Format => Error::InvalidPostTableFormat,
ffi::FT_Err_Invalid_Post_Table => Error::InvalidPostTable,
ffi::FT_Err_Syntax_Error => Error::Syntax,
ffi::FT_Err_Stack_Underflow => Error::StackUnderflow,
ffi::FT_Err_Ignore => Error::Ignore,
ffi::FT_Err_No_Unicode_Glyph_Name => Error::NoUnicodeGlyphName,
ffi::FT_Err_Missing_Startfont_Field => Error::MissingStartfontField,
ffi::FT_Err_Missing_Font_Field => Error::MissingFontField,
ffi::FT_Err_Missing_Size_Field => Error::MissingSizeField,
ffi::FT_Err_Missing_Fontboundingbox_Field => Error::MissingFontboundingboxField,
ffi::FT_Err_Missing_Chars_Field => Error::MissingCharsField,
ffi::FT_Err_Missing_Startchar_Field => Error::MissingStartcharField,
ffi::FT_Err_Missing_Encoding_Field => Error::MissingEncodingField,
ffi::FT_Err_Missing_Bbx_Field => Error::MissingBbxField,
ffi::FT_Err_Bbx_Too_Big => Error::BbxTooBig,
ffi::FT_Err_Corrupted_Font_Header => Error::CorruptedFontHeader,
ffi::FT_Err_Corrupted_Font_Glyphs => Error::CorruptedFontGlyphs,
ffi::FT_Err_Max => Error::Max,
_ => Error::Unknown
}
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(self.describe())
}
}
impl Error {
fn describe(&self) -> &str {
use self::Error::*;
match *self {
Ok => "Ok",
CannotOpenResource => "Cannot open resource",
UnknownFileFormat => "Unknown file format",
InvalidFileFormat => "Invalid file format",
InvalidVersion => "Invalid version",
LowerModuleVersion => "Lower module version",
InvalidArgument => "Invalid argument",
UnimplementedFeature => "Unimplemented feature",
InvalidTable => "Invalid table",
InvalidOffset => "Invalid offset",
ArrayTooLarge => "Array too large",
MissingModule => "Missing module",
MissingProperty => "Missing property",
InvalidGlyphIndex => "Invalid glyph index",
InvalidCharacterCode => "Invalid character code",
InvalidGlyphFormat => "Invalid glyph format",
CannotRenderGlyph => "Cannot render glyph",
InvalidOutline => "Invalid outline",
InvalidComposite => "Invalid composite",
TooManyHints => "Too many hints",
InvalidPixelSize => "Invalid pixel size",
InvalidHandle => "Invalid handle",
InvalidLibraryHandle => "Invalid library handle",
InvalidDriverHandle => "Invalid driver handle",
InvalidFaceHandle => "Invalid face handle",
InvalidSizeHandle => "Invalid size handle",
InvalidSlotHandle => "Invalid slot handle",
InvalidCharMapHandle => "Invalid char map handle",
InvalidCacheHandle => "Invalid cache handle",
InvalidStreamHandle => "Invalid stream handle",
TooManyDrivers => "Too many drivers",
TooManyExtensions => "Too many extensions",
OutOfMemory => "Out of memory",
UnlistedObject => "Unlisted object",
CannotOpenStream => "Cannot open stream",
InvalidStreamSeek => "Invalid stream seek",
InvalidStreamSkip => "Invalid stream skip",
InvalidStreamRead => "Invalid stream read",
InvalidStreamOperation => "Invalid stream operation",
InvalidFrameOperation => "Invalid frame operation",
NestedFrameAccess => "Nested frame access",
InvalidFrameRead => "Invalid frame read",
RasterUninitialized => "Raster uninitialized",
RasterCorrupted => "Raster corrupted",
RasterOverflow => "Raster overflow",
RasterNegativeHeight => "Raster negative height",
TooManyCaches => "Too many caches",
InvalidOpcode => "Invalid opcode",
TooFewArguments => "Too few arguments",
StackOverflow => "Stack overflow",
CodeOverflow => "Code overflow",
BadArgument => "Bad argument",
DivideByZero => "Divide by zero",
InvalidReference => "Invalid reference",
DebugOpCode => "Debug op code",
ENDFInExecStream => "ENDF in exec stream",
NestedDEFS => "Nested DEFS",
InvalidCodeRange => "Invalid code range",
ExecutionTooLong => "Execution too long",
TooManyFunctionDefs => "Too many function defs",
TooManyInstructionDefs => "Too many instruction defs",
TableMissing => "Table missing",
HorizHeaderMissing => "Horiz header missing",
LocationsMissing => "Locations missing",
NameTableMissing => "Name table missing",
CMapTableMissing => "C map table missing",
HmtxTableMissing => "Hmtx table missing",
PostTableMissing => "Post table missing",
InvalidHorizMetrics => "Invalid horiz metrics",
InvalidCharMapFormat => "Invalid char map format",
InvalidPPem => "Invalid p pem",
InvalidVertMetrics => "Invalid vert metrics",
CouldNotFindContext => "Could not find context",
InvalidPostTableFormat => "Invalid post table format",
InvalidPostTable => "Invalid post table",
Syntax => "Syntax",
StackUnderflow => "Stack underflow",
Ignore => "Ignore",
NoUnicodeGlyphName => "No unicode glyph name",
MissingStartfontField => "Missing startfont field",
MissingFontField => "Missing font field",
MissingSizeField => "Missing size field",
MissingFontboundingboxField => "Missing fontboundingbox field",
MissingCharsField => "Missing chars field",
MissingStartcharField => "Missing startchar field",
MissingEncodingField => "Missing encoding field",
MissingBbxField => "Missing bbx field",
BbxTooBig => "Bbx too big",
CorruptedFontHeader => "Corrupted font header",
CorruptedFontGlyphs => "Corrupted font glyphs",
Max => "Max",
UnexpectedPixelMode => "Unexpected pixel mode",
InvalidPath => "Invalid path",
Unknown => "Unknown",
}
}
}
pub(crate) fn from_ftret(c: i32) -> FtResult<()> {
if c == ffi::FT_Err_Ok { Ok(()) } else { Err(c.into()) }
}