diff options
Diffstat (limited to 'platform/java/mupdf_native.c')
| -rw-r--r-- | platform/java/mupdf_native.c | 183 |
1 files changed, 83 insertions, 100 deletions
diff --git a/platform/java/mupdf_native.c b/platform/java/mupdf_native.c index 6b609703..08679fbd 100644 --- a/platform/java/mupdf_native.c +++ b/platform/java/mupdf_native.c @@ -95,6 +95,7 @@ static jclass cls_SeekableStream; static jclass cls_Shade; static jclass cls_StrokeState; static jclass cls_StructuredText; +static jclass cls_StructuredTextWalker; static jclass cls_Text; static jclass cls_TextBlock; static jclass cls_TextChar; @@ -213,6 +214,12 @@ static jmethodID mid_SeekableStream_seek; static jmethodID mid_Shade_init; static jmethodID mid_StrokeState_init; static jmethodID mid_StructuredText_init; +static jmethodID mid_StructuredTextWalker_onImageBlock; +static jmethodID mid_StructuredTextWalker_beginTextBlock; +static jmethodID mid_StructuredTextWalker_endTextBlock; +static jmethodID mid_StructuredTextWalker_beginLine; +static jmethodID mid_StructuredTextWalker_endLine; +static jmethodID mid_StructuredTextWalker_onChar; static jmethodID mid_TextBlock_init; static jmethodID mid_TextChar_init; static jmethodID mid_TextLine_init; @@ -268,6 +275,10 @@ static int check_enums() valid &= com_artifex_mupdf_fitz_PDFAnnotation_LINE_ENDING_R_CLOSED_ARROW == PDF_ANNOT_LE_R_CLOSED_ARROW; valid &= com_artifex_mupdf_fitz_PDFAnnotation_LINE_ENDING_SLASH == PDF_ANNOT_LE_SLASH; + valid &= com_artifex_mupdf_fitz_StructuredText_SELECT_CHARS == FZ_SELECT_CHARS; + valid &= com_artifex_mupdf_fitz_StructuredText_SELECT_WORDS == FZ_SELECT_WORDS; + valid &= com_artifex_mupdf_fitz_StructuredText_SELECT_LINES == FZ_SELECT_LINES; + return valid ? 1 : 0; } @@ -606,6 +617,14 @@ static int find_fids(JNIEnv *env) fid_StructuredText_pointer = get_field(&err, env, "pointer", "J"); mid_StructuredText_init = get_method(&err, env, "<init>", "(J)V"); + cls_StructuredTextWalker = get_class(&err, env, PKG"StructuredTextWalker"); + mid_StructuredTextWalker_onImageBlock = get_method(&err, env, "onImageBlock", "(L"PKG"Rect;L"PKG"Matrix;L"PKG"Image;)V"); + mid_StructuredTextWalker_beginTextBlock = get_method(&err, env, "beginTextBlock", "(L"PKG"Rect;)V"); + mid_StructuredTextWalker_endTextBlock = get_method(&err, env, "endTextBlock", "()V"); + mid_StructuredTextWalker_beginLine = get_method(&err, env, "beginLine", "(L"PKG"Rect;I)V"); + mid_StructuredTextWalker_endLine = get_method(&err, env, "endLine", "()V"); + mid_StructuredTextWalker_onChar = get_method(&err, env, "onChar", "(IL"PKG"Point;L"PKG"Font;FL"PKG"Quad;)V"); + cls_Text = get_class(&err, env, PKG"Text"); fid_Text_pointer = get_field(&err, env, "pointer", "J"); mid_Text_init = get_method(&err, env, "<init>", "(J)V"); @@ -732,6 +751,7 @@ static void lose_fids(JNIEnv *env) (*env)->DeleteGlobalRef(env, cls_Shade); (*env)->DeleteGlobalRef(env, cls_StrokeState); (*env)->DeleteGlobalRef(env, cls_StructuredText); + (*env)->DeleteGlobalRef(env, cls_StructuredTextWalker); (*env)->DeleteGlobalRef(env, cls_Text); (*env)->DeleteGlobalRef(env, cls_TextBlock); (*env)->DeleteGlobalRef(env, cls_TextChar); @@ -1367,6 +1387,13 @@ static inline jobject to_Image_safe(fz_context *ctx, JNIEnv *env, fz_image *img) return jimg; } +static inline jobject to_Matrix_safe(fz_context *ctx, JNIEnv *env, fz_matrix mat) +{ + if (!ctx) return NULL; + + return (*env)->NewObject(env, cls_Matrix, mid_Matrix_init, mat.a, mat.b, mat.c, mat.d, mat.e, mat.f); +} + static inline jobject to_Outline_safe(fz_context *ctx, JNIEnv *env, fz_document *doc, fz_outline *outline) { jobject joutline = NULL; @@ -6463,136 +6490,92 @@ FUN(StructuredText_copy)(JNIEnv *env, jobject self, jobject jpt1, jobject jpt2) return jstring; } -JNIEXPORT jobject JNICALL -FUN(StructuredText_getBlocks)(JNIEnv *env, jobject self) +JNIEXPORT void JNICALL +FUN(StructuredText_walk)(JNIEnv *env, jobject self, jobject walker) { fz_context *ctx = get_context(env); fz_stext_page *page = from_StructuredText(env, self); - - jobject barr = NULL; - jobject larr = NULL; - jobject carr = NULL; - jobject jrect = NULL; - jobject jquad = NULL; - - int len; - int b; - int l; - int c; - fz_stext_block *block = NULL; fz_stext_line *line = NULL; fz_stext_char *ch = NULL; + jobject jbbox = NULL; + jobject jtrm = NULL; + jobject jimage = NULL; + jobject jorigin = NULL; + jobject jfont = NULL; + jobject jquad = NULL; - jobject jblock = NULL; - jobject jline = NULL; - jobject jchar = NULL; + if (!ctx || !page) return; + if (!walker) { jni_throw_arg(env, "walker must not be null"); return; } - if (!ctx || !page) return NULL; + if (page->first_block == NULL) + return; /* structured text has no blocks to walk */ - len = 0; for (block = page->first_block; block; block = block->next) - if (block->type == FZ_STEXT_BLOCK_TEXT) - ++len; - - /* create block array */ - barr = (*env)->NewObjectArray(env, len, cls_TextBlock, NULL); - if (!barr) return NULL; - - for (b=0, block = page->first_block; block; ++b, block = block->next) { - /* only do text blocks */ - if (block->type != FZ_STEXT_BLOCK_TEXT) - continue; - - /* make a block */ - jblock = (*env)->NewObject(env, cls_TextBlock, mid_TextBlock_init, self); - if (!jblock) return NULL; - - /* set block's bbox */ - jrect = to_Rect_safe(ctx, env, block->bbox); - if (!jrect) return NULL; - - (*env)->SetObjectField(env, jblock, fid_TextBlock_bbox, jrect); - (*env)->DeleteLocalRef(env, jrect); - - /* create block's line array */ - len = 0; - for (line = block->u.t.first_line; line; line = line->next) - ++len; + jbbox = to_Rect_safe(ctx, env, block->bbox); + if (!jbbox) return; - larr = (*env)->NewObjectArray(env, len, cls_TextLine, NULL); - if (!larr) return NULL; - - for (l=0, line = block->u.t.first_line; line; ++l, line = line->next) + if (block->type == FZ_STEXT_BLOCK_IMAGE) { - /* make a line */ - jline = (*env)->NewObject(env, cls_TextLine, mid_TextLine_init, self); - if (!jline) return NULL; + jtrm = to_Matrix_safe(ctx, env, block->u.i.transform); + if (!jtrm) return; - /* set line's bbox */ - jrect = to_Rect_safe(ctx, env, line->bbox); - if (!jrect) return NULL; + jimage = to_Image_safe(ctx, env, block->u.i.image); + if (!jimage) return; - (*env)->SetObjectField(env, jline, fid_TextLine_bbox, jrect); - (*env)->DeleteLocalRef(env, jrect); + (*env)->CallVoidMethod(env, walker, mid_StructuredTextWalker_onImageBlock, jbbox, jtrm, jimage); + if ((*env)->ExceptionCheck(env)) return; - /* count the chars */ - len = 0; - for (ch = line->first_char; ch; ch = ch->next) - len++; + (*env)->DeleteLocalRef(env, jbbox); + (*env)->DeleteLocalRef(env, jimage); + (*env)->DeleteLocalRef(env, jtrm); + } + else if (block->type == FZ_STEXT_BLOCK_TEXT) + { + (*env)->CallVoidMethod(env, walker, mid_StructuredTextWalker_beginTextBlock, jbbox); + if ((*env)->ExceptionCheck(env)) return; - /* make a char array */ - carr = (*env)->NewObjectArray(env, len, cls_TextChar, NULL); - if (!carr) return NULL; + (*env)->DeleteLocalRef(env, jbbox); - for (c=0, ch = line->first_char; ch; ++c, ch = ch->next) + for (line = block->u.t.first_line; line; line = line->next) { - /* create a char */ - jchar = (*env)->NewObject(env, cls_TextChar, mid_TextChar_init, self); - if (!jchar) return NULL; + jbbox = to_Rect_safe(ctx, env, line->bbox); + if (!jbbox) return; - /* set the char's bbox */ - jquad = to_Quad_safe(ctx, env, ch->quad); - if (!jquad) return NULL; + (*env)->CallVoidMethod(env, walker, mid_StructuredTextWalker_beginLine, jbbox, line->wmode); + if ((*env)->ExceptionCheck(env)) return; - (*env)->SetObjectField(env, jchar, fid_TextChar_quad, jquad); - (*env)->DeleteLocalRef(env, jquad); + (*env)->DeleteLocalRef(env, jbbox); - /* set the char's value */ - (*env)->SetIntField(env, jchar, fid_TextChar_c, ch->c); + for (ch = line->first_char; ch; ch = ch->next) + { + jorigin = to_Point_safe(ctx, env, ch->origin); + if (!jorigin) return; - /* add it to the char array */ - (*env)->SetObjectArrayElement(env, carr, c, jchar); - if ((*env)->ExceptionCheck(env)) return NULL; + jfont = to_Font_safe(ctx, env, ch->font); + if (!jfont) return; - (*env)->DeleteLocalRef(env, jchar); - } + jquad = to_Quad_safe(ctx, env, ch->quad); + if (!jquad) return; - /* set the line's char array */ - (*env)->SetObjectField(env, jline, fid_TextLine_chars, carr); + (*env)->CallVoidMethod(env, walker, mid_StructuredTextWalker_onChar, + ch->c, jorigin, jfont, ch->size, jquad); + if ((*env)->ExceptionCheck(env)) return; - (*env)->DeleteLocalRef(env, carr); + (*env)->DeleteLocalRef(env, jquad); + (*env)->DeleteLocalRef(env, jfont); + (*env)->DeleteLocalRef(env, jorigin); + } - /* add to the line array */ - (*env)->SetObjectArrayElement(env, larr, l, jline); - if ((*env)->ExceptionCheck(env)) return NULL; + (*env)->CallVoidMethod(env, walker, mid_StructuredTextWalker_endLine); + if ((*env)->ExceptionCheck(env)) return; + } - (*env)->DeleteLocalRef(env, jline); + (*env)->CallVoidMethod(env, walker, mid_StructuredTextWalker_endTextBlock); + if ((*env)->ExceptionCheck(env)) return; } - - /* set the block's line array */ - (*env)->SetObjectField(env, jblock, fid_TextBlock_lines, larr); - (*env)->DeleteLocalRef(env, larr); - - /* add to the block array */ - (*env)->SetObjectArrayElement(env, barr, b, jblock); - if ((*env)->ExceptionCheck(env)) return NULL; - - (*env)->DeleteLocalRef(env, jblock); } - - return barr; } /* PDFDocument interface */ |