static void pdfapp_searchbackward(pdfapp_t *app, enum panning *panto)
{
int matchlen;
int test;
int len;
int startpage;
wincursor(app, WAIT);
startpage = app->pageno;
do
{
len = textlen(app->page_text);
if (app->hit >= 0)
test = app->hit - 1;
else
test = len;
while (test >= 0)
{
matchlen = match(app->search, app->page_text, test);
if (matchlen)
{
app->hit = test;
app->hitlen = matchlen;
wincursor(app, HAND);
winrepaint(app);
return;
}
test--;
}
app->pageno--;
if (app->pageno < 1)
app->pageno = app->pagecount;
pdfapp_showpage(app, 1, 0, 0);
*panto = PAN_TO_BOTTOM;
} while (app->pageno != startpage);
if (app->pageno == startpage)
{
pdfapp_warn(app, "String '%s' not found.", app->search);
winrepaintsearch(app);
}
else
winrepaint(app);
wincursor(app, HAND);
}
static void pdfapp_searchforward(pdfapp_t *app, enum panning *panto)
{
int matchlen;
int test;
int len;
int startpage;
wincursor(app, WAIT);
startpage = app->pageno;
do
{
len = textlen(app->page_text);
if (app->hit >= 0)
test = app->hit + strlen(app->search);
else
test = 0;
while (test < len)
{
matchlen = match(app->search, app->page_text, test);
if (matchlen)
{
app->hit = test;
app->hitlen = matchlen;
wincursor(app, HAND);
winrepaint(app);
return;
}
test++;
}
app->pageno++;
if (app->pageno > app->pagecount)
app->pageno = 1;
pdfapp_showpage(app, 1, 0, 0);
*panto = PAN_TO_TOP;
} while (app->pageno != startpage);
if (app->pageno == startpage)
{
pdfapp_warn(app, "String '%s' not found.", app->search);
winrepaintsearch(app);
}
else
winrepaint(app);
wincursor(app, HAND);
}
static void pdfapp_searchbackward(pdfapp_t *app)
{
int matchlen;
int test;
int len;
int startpage;
wincursor(app, WAIT);
startpage = app->pageno;
do
{
len = textlen(app->page_text);
if (app->hit >= 0)
test = app->hit - 1;
else
test = len;
while (test >= 0)
{
matchlen = match(app->search, app->page_text, test);
if (matchlen)
{
app->hit = test;
app->hitlen = matchlen;
wincursor(app, HAND);
return;
}
test--;
}
app->pageno--;
if (app->pageno < 1)
app->pageno = app->pagecount;
pdfapp_showpage(app, 1, 0, 0);
app->pany = -2000;
} while (app->pageno != startpage);
if (app->pageno == startpage)
printf("hit not found\n");
wincursor(app, HAND);
}
static void pdfapp_searchforward(pdfapp_t *app)
{
int matchlen;
int test;
int len;
int startpage;
wincursor(app, WAIT);
startpage = app->pageno;
do
{
len = textlen(app->page_text);
if (app->hit >= 0)
test = app->hit + strlen(app->search);
else
test = 0;
while (test < len)
{
matchlen = match(app->search, app->page_text, test);
if (matchlen)
{
app->hit = test;
app->hitlen = matchlen;
wincursor(app, HAND);
return;
}
test++;
}
app->pageno++;
if (app->pageno > app->pagecount)
app->pageno = 1;
pdfapp_showpage(app, 1, 0, 0);
app->pany = 0;
} while (app->pageno != startpage);
if (app->pageno == startpage)
printf("hit not found\n");
wincursor(app, HAND);
}
int
fz_search_text_page(fz_context *ctx, fz_text_page *text, char *needle, fz_rect *hit_bbox, int hit_max)
{
int pos, len, i, n, hit_count;
if (strlen(needle) == 0)
return 0;
hit_count = 0;
len = textlen(text);
for (pos = 0; pos < len; pos++)
{
n = match(text, needle, pos);
if (n)
{
fz_rect linebox = fz_empty_rect;
for (i = 0; i < n; i++)
{
fz_rect charbox;
bboxat(text, pos + i, &charbox);
if (!fz_is_empty_rect(&charbox))
{
if (charbox.y0 != linebox.y0 || fz_abs(charbox.x0 - linebox.x1) > 5)
{
if (!fz_is_empty_rect(&linebox) && hit_count < hit_max)
hit_bbox[hit_count++] = linebox;
linebox = charbox;
}
else
{
fz_union_rect(&linebox, &charbox);
}
}
}
if (!fz_is_empty_rect(&linebox) && hit_count < hit_max)
hit_bbox[hit_count++] = linebox;
}
}
return hit_count;
}
JNIEXPORT jobjectArray JNICALL
Java_com_artifex_mupdf_MuPDFCore_searchPage(JNIEnv * env, jobject thiz, jstring jtext)
{
jclass rectClass;
jmethodID ctor;
jobjectArray arr;
jobject rect;
fz_text_sheet *sheet = NULL;
fz_text_page *text = NULL;
fz_device *dev = NULL;
float zoom;
fz_matrix ctm;
int pos;
int len;
int i, n;
int hit_count = 0;
const char *str;
page_cache *pc = &pages[current];
rectClass = (*env)->FindClass(env, "android/graphics/RectF");
if (rectClass == NULL) return NULL;
ctor = (*env)->GetMethodID(env, rectClass, "<init>", "(FFFF)V");
if (ctor == NULL) return NULL;
str = (*env)->GetStringUTFChars(env, jtext, NULL);
if (str == NULL) return NULL;
fz_var(sheet);
fz_var(text);
fz_var(dev);
fz_try(ctx)
{
fz_rect rect;
if (hit_bbox == NULL)
hit_bbox = fz_malloc_array(ctx, MAX_SEARCH_HITS, sizeof(*hit_bbox));
zoom = resolution / 72;
ctm = fz_scale(zoom, zoom);
rect = fz_transform_rect(ctm, pc->media_box);
sheet = fz_new_text_sheet(ctx);
text = fz_new_text_page(ctx, rect);
dev = fz_new_text_device(ctx, sheet, text);
fz_run_page(doc, pc->page, dev, ctm, NULL);
fz_free_device(dev);
dev = NULL;
len = textlen(text);
for (pos = 0; pos < len; pos++)
{
fz_bbox rr = fz_empty_bbox;
n = match(text, str, pos);
for (i = 0; i < n; i++)
rr = fz_union_bbox(rr, bboxcharat(text, pos + i));
if (!fz_is_empty_bbox(rr) && hit_count < MAX_SEARCH_HITS)
hit_bbox[hit_count++] = rr;
}
}
fz_always(ctx)
{
fz_free_text_page(ctx, text);
fz_free_text_sheet(ctx, sheet);
fz_free_device(dev);
}
fz_catch(ctx)
{
jclass cls;
(*env)->ReleaseStringUTFChars(env, jtext, str);
cls = (*env)->FindClass(env, "java/lang/OutOfMemoryError");
if (cls != NULL)
(*env)->ThrowNew(env, cls, "Out of memory in MuPDFCore_searchPage");
(*env)->DeleteLocalRef(env, cls);
return NULL;
}
(*env)->ReleaseStringUTFChars(env, jtext, str);
arr = (*env)->NewObjectArray(env,
hit_count,
rectClass,
NULL);
if (arr == NULL) return NULL;
for (i = 0; i < hit_count; i++) {
rect = (*env)->NewObject(env, rectClass, ctor,
(float) (hit_bbox[i].x0),
(float) (hit_bbox[i].y0),
(float) (hit_bbox[i].x1),
(float) (hit_bbox[i].y1));
if (rect == NULL)
return NULL;
(*env)->SetObjectArrayElement(env, arr, i, rect);
(*env)->DeleteLocalRef(env, rect);
}
return arr;
}
