diff options
| -rw-r--r-- | include/mupdf/fitz/text.h | 2 | ||||
| -rw-r--r-- | source/fitz/text.c | 51 |
2 files changed, 53 insertions, 0 deletions
diff --git a/include/mupdf/fitz/text.h b/include/mupdf/fitz/text.h index 01b4667f..302678cd 100644 --- a/include/mupdf/fitz/text.h +++ b/include/mupdf/fitz/text.h @@ -52,4 +52,6 @@ void fz_drop_text(fz_context *ctx, fz_text *text); void fz_add_text(fz_context *ctx, fz_text *text, fz_font *font, int wmode, const fz_matrix *trm, int gid, int ucs); fz_rect *fz_bound_text(fz_context *ctx, fz_text *text, const fz_stroke_state *stroke, const fz_matrix *ctm, fz_rect *r); +fz_text *fz_clone_text(fz_context *ctx, fz_text *text); + #endif diff --git a/source/fitz/text.c b/source/fitz/text.c index f90fee53..5490f72e 100644 --- a/source/fitz/text.c +++ b/source/fitz/text.c @@ -138,3 +138,54 @@ fz_bound_text(fz_context *ctx, fz_text *text, const fz_stroke_state *stroke, con return bbox; } + +fz_text * +fz_clone_text(fz_context *ctx, fz_text *text) +{ + fz_text *new_text; + fz_text_span *span; + fz_text_span **tail; + + new_text = fz_malloc_struct(ctx, fz_text); + new_text->refs = 1; + span = text->head; + tail = &new_text->head; + + fz_var(span); + + fz_try(ctx) + { + while (span != NULL) + { + fz_text_span *new_span = fz_malloc_struct(ctx, fz_text_span); + *tail = new_span; + tail = &new_span->next; + new_text->tail = new_span; + new_span->font = fz_keep_font(ctx, span->font); + new_span->trm = span->trm; + new_span->wmode = span->wmode; + new_span->len = span->len; + new_span->cap = span->len; + new_span->items = fz_malloc(ctx, span->len * sizeof(*span->items)); + memcpy(new_span->items, span->items, span->len * sizeof(*span->items)); + span = span->next; + + } + } + fz_catch(ctx) + { + span = new_text->head; + while (span != NULL) + { + fz_text_span *next = span->next; + fz_drop_font(ctx, span->font); + fz_free(ctx, span->items); + fz_free(ctx, span); + span = next; + } + fz_free(ctx, new_text); + fz_rethrow(ctx); + } + + return new_text; +} |