PHP Australia Conference 2015

The CairoStatus class

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Introduzione

CairoStatus is used to indicate errors that can occur when using Cairo. In some cases it is returned directly by functions. but when using CairoContext, the last error, if any, is stored in the object and can be retrieved with CairoContext::status() or cairo_status(). New entries may be added in future versions.

Use Cairo::statusToString() or cairo_status_to_string() to get a human-readable representation of an error message.

Sommario dellla classe

CairoStatus {
/* Costanti */
const integer SUCCESS = 0 ;
const integer NO_MEMORY = 1 ;
const integer INVALID_RESTORE = 2 ;
const integer INVALID_POP_GROUP = 3 ;
const integer NO_CURRENT_POINT = 4 ;
const integer INVALID_MATRIX = 5 ;
const integer INVALID_STATUS = 6 ;
const integer NULL_POINTER = 7 ;
const integer INVALID_STRING = 8 ;
const integer INVALID_PATH_DATA = 9 ;
const integer READ_ERROR = 10 ;
const integer WRITE_ERROR = 11 ;
const integer SURFACE_FINISHED = 12 ;
const integer SURFACE_TYPE_MISMATCH = 13 ;
const integer PATTERN_TYPE_MISMATCH = 14 ;
const integer INVALID_CONTENT = 15 ;
const integer INVALID_FORMAT = 16 ;
const integer INVALID_VISUAL = 17 ;
const integer FILE_NOT_FOUND = 18 ;
const integer INVALID_DASH = 19 ;
const integer INVALID_DSC_COMMENT = 20 ;
const integer INVALID_INDEX = 21 ;
const integer CLIP_NOT_REPRESENTABLE = 22 ;
const integer TEMP_FILE_ERROR = 23 ;
const integer INVALID_STRIDE = 24 ;
}

Costanti predefinite

CairoStatus::SUCCESS

No error has occurred

CairoStatus::NO_MEMORY

Out of memory

CairoStatus::INVALID_RESTORE

cairo_restore() called without matching cairo_save()

CairoStatus::INVALID_POP_GROUP

No saved group to pop

CairoStatus::NO_CURRENT_POINT

No current point defined

CairoStatus::INVALID_MATRIX

Invalid matrix (not invertible)

CairoStatus::INVALID_STATUS

Invalid value for an input CairoStatus>

CairoStatus::NULL_POINTER

Null pointer

CairoStatus::INVALID_STRING

Input string not valid UTF-8 string

CairoStatus::INVALID_PATH_DATA

Input path data not valid

CairoStatus::READ_ERROR

Error while reading from input stream

CairoStatus::WRITE_ERROR

Error while writing to output stream

CairoStatus::SURFACE_FINISHED

Target surface has been finished

CairoStatus::SURFACE_TYPE_MISMATCH

The surface type is not appropriate for the operation

CairoStatus::PATTERN_TYPE_MISMATCH

The pattern type is not appropriate for the operation

CairoStatus::INVALID_CONTENT

Invalid value for an input CairoContent

CairoStatus::INVALID_FORMAT

Invalid value for an input CairoFormat

CairoStatus::INVALID_VISUAL

Invalid value for an input Visual

CairoStatus::FILE_NOT_FOUND

File not found

CairoStatus::INVALID_DASH

Invalid value for a dash setting

CairoStatus::INVALID_DSC_COMMENT

Invalid value for a DSC comment

CairoStatus::INVALID_INDEX

Invalid index passed to getter

CairoStatus::CLIP_NOT_REPRESENTABLE

Clip region not representable in desired format

CairoStatus::TEMP_FILE_ERROR

Error creating or writing to a temporary file

CairoStatus::INVALID_STRIDE

Invalid value for CairoStride

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