Mercurial > hgrepos > Python2 > PyMuPDF

comparison mupdf-source/platform/java/jni/text.c @ 3:2c135c81b16c

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MERGE: upstream PyMuPDF 1.26.4 with MuPDF 1.26.7
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:44:09 +0200
parents b50eed0cc0ef
children
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0:6015a75abc2d 3:2c135c81b16c
1 // Copyright (C) 2004-2021 Artifex Software, Inc.
2 //
3 // This file is part of MuPDF.
4 //
5 // MuPDF is free software: you can redistribute it and/or modify it under the
6 // terms of the GNU Affero General Public License as published by the Free
7 // Software Foundation, either version 3 of the License, or (at your option)
8 // any later version.
9 //
10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
13 // details.
14 //
15 // You should have received a copy of the GNU Affero General Public License
16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
17 //
18 // Alternative licensing terms are available from the licensor.
19 // For commercial licensing, see <https://www.artifex.com/> or contact
20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
21 // CA 94129, USA, for further information.
22
23 /* Text interface */
24
25 JNIEXPORT void JNICALL
26 FUN(Text_finalize)(JNIEnv *env, jobject self)
27 {
28 fz_context *ctx = get_context(env);
29 fz_text *text = from_Text_safe(env, self);
30 if (!ctx || !text) return;
31 (*env)->SetLongField(env, self, fid_Text_pointer, 0);
32 fz_drop_text(ctx, text);
33 }
34
35 JNIEXPORT jlong JNICALL
36 FUN(Text_newNative)(JNIEnv *env, jobject self)
37 {
38 fz_context *ctx = get_context(env);
39 fz_text *text = NULL;
40
41 if (!ctx) return 0;
42
43 fz_try(ctx)
44 text = fz_new_text(ctx);
45 fz_catch(ctx)
46 jni_rethrow(env, ctx);
47
48 return jlong_cast(text);
49 }
50
51 JNIEXPORT jobject JNICALL
52 FUN(Text_getBounds)(JNIEnv *env, jobject self, jobject jstroke, jobject jctm)
53 {
54 fz_context *ctx = get_context(env);
55 fz_text *text = from_Text(env, self);
56 fz_stroke_state *stroke = from_StrokeState(env, jstroke);
57 fz_matrix ctm = from_Matrix(env, jctm);
58 fz_rect rect;
59
60 if (!ctx || !text) return NULL;
61 if (!stroke) jni_throw_arg(env, "stroke must not be null");
62
63 fz_try(ctx)
64 rect = fz_bound_text(ctx, text, stroke, ctm);
65 fz_catch(ctx)
66 jni_rethrow(env, ctx);
67
68 return to_Rect_safe(ctx, env, rect);
69 }
70
71 JNIEXPORT void JNICALL
72 FUN(Text_showGlyph)(JNIEnv *env, jobject self, jobject jfont, jobject jtrm, jint glyph, jint unicode, jboolean wmode)
73 {
74 fz_context *ctx = get_context(env);
75 fz_text *text = from_Text(env, self);
76 fz_font *font = from_Font(env, jfont);
77 fz_matrix trm = from_Matrix(env, jtrm);
78
79 if (!ctx || !text) return;
80 if (!font) jni_throw_arg_void(env, "font must not be null");
81
82 fz_try(ctx)
83 fz_show_glyph(ctx, text, font, trm, glyph, unicode, wmode, 0, FZ_BIDI_NEUTRAL, FZ_LANG_UNSET);
84 fz_catch(ctx)
85 jni_rethrow_void(env, ctx);
86 }
87
88 JNIEXPORT void JNICALL
89 FUN(Text_showString)(JNIEnv *env, jobject self, jobject jfont, jobject jtrm, jstring jstr, jboolean wmode)
90 {
91 fz_context *ctx = get_context(env);
92 fz_text *text = from_Text(env, self);
93 fz_font *font = from_Font(env, jfont);
94 fz_matrix trm = from_Matrix(env, jtrm);
95 const char *str = NULL;
96
97 if (!ctx || !text) return;
98 if (!jfont) jni_throw_arg_void(env, "font must not be null");
99 if (!jstr) jni_throw_arg_void(env, "string must not be null");
100
101 str = (*env)->GetStringUTFChars(env, jstr, NULL);
102 if (!str) return;
103
104 fz_try(ctx)
105 trm = fz_show_string(ctx, text, font, trm, str, wmode, 0, FZ_BIDI_NEUTRAL, FZ_LANG_UNSET);
106 fz_always(ctx)
107 (*env)->ReleaseStringUTFChars(env, jstr, str);
108 fz_catch(ctx)
109 jni_rethrow_void(env, ctx);
110
111 (*env)->SetFloatField(env, jtrm, fid_Matrix_e, trm.e);
112 (*env)->SetFloatField(env, jtrm, fid_Matrix_f, trm.f);
113 }
114
115 JNIEXPORT void JNICALL
116 FUN(Text_walk)(JNIEnv *env, jobject self, jobject walker)
117 {
118 fz_context *ctx = get_context(env);
119 fz_text *text = from_Text(env, self);
120 fz_text_span *span;
121 fz_font *font = NULL;
122 jobject jfont = NULL;
123 jobject jtrm = NULL;
124 int i;
125
126 if (!ctx || !text) return;
127 if (!walker) jni_throw_arg_void(env, "walker must not be null");
128
129 if (text->head == NULL)
130 return; /* text has no spans to walk */
131
132 for (span = text->head; span; span = span->next)
133 {
134 if (font != span->font)
135 {
136 if (jfont)
137 (*env)->DeleteLocalRef(env, jfont);
138 font = span->font;
139 jfont = to_Font_safe(ctx, env, font);
140 if (!jfont)
141 return;
142 }
143
144 for (i = 0; i < span->len; ++i)
145 {
146 jtrm = (*env)->NewObject(env, cls_Matrix, mid_Matrix_init,
147 span->trm.a, span->trm.b, span->trm.c, span->trm.d,
148 span->items[i].x, span->items[i].y);
149 if (!jtrm) return;
150
151 (*env)->CallVoidMethod(env, walker, mid_TextWalker_showGlyph,
152 jfont, jtrm,
153 (jint)span->items[i].gid,
154 (jint)span->items[i].ucs,
155 (jint)span->wmode);
156 if ((*env)->ExceptionCheck(env)) return;
157
158 (*env)->DeleteLocalRef(env, jtrm);
159 }
160 }
161 }