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ARTTextFrame.h
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25 lines (21 loc) · 953 Bytes
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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import <CoreText/CoreText.h>
// A little helper to make sure we have a set of lines including width ready for use.
// We assume that we will only this in one place so no reference counting is necessary.
// Needs to be freed when dealloced.
// This is fragile since this relies on these values not getting reused. Consider
// wrapping these in an Obj-C class or some ARC hackery to get refcounting.
typedef struct {
size_t count;
CGFloat baseLine; // Distance from the origin to the base line of the first line
CGFloat lineHeight; // Distance between lines
CTLineRef *lines;
CGFloat *widths; // Width of each line
} ARTTextFrame;