--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/platform/java/jni/page.c	Mon Sep 15 11:44:09 2025 +0200
@@ -0,0 +1,505 @@
+// Copyright (C) 2004-2025 Artifex Software, Inc.
+//
+// This file is part of MuPDF.
+//
+// MuPDF is free software: you can redistribute it and/or modify it under the
+// terms of the GNU Affero General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option)
+// any later version.
+//
+// MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+// details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
+//
+// Alternative licensing terms are available from the licensor.
+// For commercial licensing, see <https://www.artifex.com/> or contact
+// Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
+// CA 94129, USA, for further information.
+
+/* Page interface */
+
+JNIEXPORT void JNICALL
+FUN(Page_finalize)(JNIEnv *env, jobject self)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page_safe(env, self);
+	if (!ctx || !page) return;
+	(*env)->SetLongField(env, self, fid_Page_pointer, 0);
+	fz_drop_page(ctx, page);
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_toPixmap)(JNIEnv *env, jobject self, jobject jctm, jobject jcs, jboolean alpha, jboolean showExtra)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_colorspace *cs = from_ColorSpace(env, jcs);
+	fz_matrix ctm = from_Matrix(env, jctm);
+	fz_pixmap *pixmap = NULL;
+
+	if (!ctx || !page) return NULL;
+
+	fz_try(ctx)
+	{
+		if (showExtra)
+			pixmap = fz_new_pixmap_from_page(ctx, page, ctm, cs, alpha);
+		else
+			pixmap = fz_new_pixmap_from_page_contents(ctx, page, ctm, cs, alpha);
+	}
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	return to_Pixmap_safe_own(ctx, env, pixmap);
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_getBoundsNative)(JNIEnv *env, jobject self, jint box)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_rect rect;
+
+	if (!ctx || !page) return NULL;
+
+	fz_try(ctx)
+		rect = fz_bound_page_box(ctx, page, box);
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	return to_Rect_safe(ctx, env, rect);
+}
+
+JNIEXPORT void JNICALL
+FUN(Page_run)(JNIEnv *env, jobject self, jobject jdev, jobject jctm, jobject jcookie)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_device *dev = from_Device(env, jdev);
+	fz_matrix ctm = from_Matrix(env, jctm);
+	fz_cookie *cookie = from_Cookie(env, jcookie);
+	NativeDeviceInfo *info;
+	int err;
+
+	if (!ctx || !page) return;
+	if (!dev) jni_throw_arg_void(env, "device must not be null");
+
+	info = lockNativeDevice(env, jdev, &err);
+	if (err)
+		return;
+	fz_try(ctx)
+		fz_run_page(ctx, page, dev, ctm, cookie);
+	fz_always(ctx)
+		unlockNativeDevice(env, info);
+	fz_catch(ctx)
+		jni_rethrow_void(env, ctx);
+}
+
+JNIEXPORT void JNICALL
+FUN(Page_runPageContents)(JNIEnv *env, jobject self, jobject jdev, jobject jctm, jobject jcookie)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_device *dev = from_Device(env, jdev);
+	fz_matrix ctm = from_Matrix(env, jctm);
+	fz_cookie *cookie = from_Cookie(env, jcookie);
+	NativeDeviceInfo *info;
+	int err;
+
+	if (!ctx || !page) return;
+	if (!dev) jni_throw_arg_void(env, "device must not be null");
+
+	info = lockNativeDevice(env, jdev, &err);
+	if (err)
+		return;
+	fz_try(ctx)
+		fz_run_page_contents(ctx, page, dev, ctm, cookie);
+	fz_always(ctx)
+		unlockNativeDevice(env, info);
+	fz_catch(ctx)
+		jni_rethrow_void(env, ctx);
+}
+
+JNIEXPORT void JNICALL
+FUN(Page_runPageAnnots)(JNIEnv *env, jobject self, jobject jdev, jobject jctm, jobject jcookie)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_device *dev = from_Device(env, jdev);
+	fz_matrix ctm = from_Matrix(env, jctm);
+	fz_cookie *cookie = from_Cookie(env, jcookie);
+	NativeDeviceInfo *info;
+	int err;
+
+	if (!ctx || !page) return;
+	if (!dev) jni_throw_arg_void(env, "device must not be null");
+
+	info = lockNativeDevice(env, jdev, &err);
+	if (err)
+		return;
+	fz_try(ctx)
+		fz_run_page_annots(ctx, page, dev, ctm, cookie);
+	fz_always(ctx)
+		unlockNativeDevice(env, info);
+	fz_catch(ctx)
+		jni_rethrow_void(env, ctx);
+}
+
+JNIEXPORT void JNICALL
+FUN(Page_runPageWidgets)(JNIEnv *env, jobject self, jobject jdev, jobject jctm, jobject jcookie)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_device *dev = from_Device(env, jdev);
+	fz_matrix ctm = from_Matrix(env, jctm);
+	fz_cookie *cookie = from_Cookie(env, jcookie);
+	NativeDeviceInfo *info;
+	int err;
+
+	if (!ctx || !page) return;
+	if (!dev) jni_throw_arg_void(env, "device must not be null");
+
+	info = lockNativeDevice(env, jdev, &err);
+	if (err)
+		return;
+	fz_try(ctx)
+		fz_run_page_widgets(ctx, page, dev, ctm, cookie);
+	fz_always(ctx)
+		unlockNativeDevice(env, info);
+	fz_catch(ctx)
+		jni_rethrow_void(env, ctx);
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_getLinks)(JNIEnv *env, jobject self)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_link *link = NULL;
+	fz_link *links = NULL;
+	jobject jlinks = NULL;
+	int link_count;
+	int i;
+
+	if (!ctx || !page) return NULL;
+
+	fz_var(links);
+
+	fz_try(ctx)
+		links = fz_load_links(ctx, page);
+	fz_catch(ctx)
+	{
+		fz_drop_link(ctx, links);
+		jni_rethrow(env, ctx);
+	}
+
+	/* count the links */
+	link = links;
+	for (link_count = 0; link; link_count++)
+		link = link->next;
+
+	/* no links, return NULL instead of empty array */
+	if (link_count == 0)
+	{
+		fz_drop_link(ctx, links);
+		return NULL;
+	}
+
+	/* now run through actually creating the link objects */
+	jlinks = (*env)->NewObjectArray(env, link_count, cls_Link, NULL);
+	if (!jlinks || (*env)->ExceptionCheck(env))
+	{
+		fz_drop_link(ctx, links);
+		return NULL;
+	}
+
+	link = links;
+	for (i = 0; link && i < link_count; i++)
+	{
+		jobject jlink = NULL;
+
+		jlink = to_Link_safe(ctx, env, link);
+		if (!jlink || (*env)->ExceptionCheck(env))
+		{
+			fz_drop_link(ctx, links);
+			return NULL;
+		}
+
+		(*env)->SetObjectArrayElement(env, jlinks, i, jlink);
+		if ((*env)->ExceptionCheck(env))
+		{
+			fz_drop_link(ctx, links);
+			return NULL;
+		}
+
+		(*env)->DeleteLocalRef(env, jlink);
+		link = link->next;
+	}
+
+	fz_drop_link(ctx, links);
+
+	return jlinks;
+}
+
+JNIEXPORT jobjectArray JNICALL
+FUN(Page_search)(JNIEnv *env, jobject self, jstring jneedle)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	const char *needle = NULL;
+	search_state state = { env, NULL, 0 };
+	jobject jsample = NULL;
+
+	if (!ctx || !page) return NULL;
+	if (!jneedle) jni_throw_arg(env, "needle must not be null");
+
+	needle = (*env)->GetStringUTFChars(env, jneedle, NULL);
+	if (!needle) return NULL;
+
+	state.hits = (*env)->NewObject(env, cls_ArrayList, mid_ArrayList_init);
+	if (!state.hits || (*env)->ExceptionCheck(env)) return NULL;
+
+	fz_try(ctx)
+		fz_search_page_cb(ctx, page, needle, hit_callback, &state);
+	fz_always(ctx)
+	{
+		(*env)->ReleaseStringUTFChars(env, jneedle, needle);
+	}
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	if (state.error)
+		return NULL;
+
+	jsample = (*env)->NewObjectArray(env, 0, cls_ArrayOfQuad, NULL);
+	return (*env)->CallObjectMethod(env, state.hits, mid_ArrayList_toArray, jsample);
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_toDisplayList)(JNIEnv *env, jobject self, jboolean showExtra)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_display_list *list = NULL;
+
+	if (!ctx || !page) return NULL;
+
+	fz_try(ctx)
+		if (showExtra)
+			list = fz_new_display_list_from_page(ctx, page);
+		else
+			list = fz_new_display_list_from_page_contents(ctx, page);
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	return to_DisplayList_safe_own(ctx, env, list);
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_toStructuredText)(JNIEnv *env, jobject self, jstring joptions)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_stext_page *text = NULL;
+	const char *options= NULL;
+	fz_stext_options opts;
+
+	if (!ctx || !page) return NULL;
+
+	if (joptions)
+	{
+		options = (*env)->GetStringUTFChars(env, joptions, NULL);
+		if (!options) return NULL;
+	}
+
+	fz_try(ctx)
+	{
+		fz_parse_stext_options(ctx, &opts, options);
+		text = fz_new_stext_page_from_page(ctx, page, &opts);
+	}
+	fz_always(ctx)
+	{
+		if (options)
+			(*env)->ReleaseStringUTFChars(env, joptions, options);
+	}
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	return to_StructuredText_safe_own(ctx, env, text);
+}
+
+JNIEXPORT jbyteArray JNICALL
+FUN(Page_textAsHtml)(JNIEnv *env, jobject self)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_stext_page *text = NULL;
+	fz_device *dev = NULL;
+	fz_matrix ctm;
+	jbyteArray arr = NULL;
+	fz_buffer *buf = NULL;
+	fz_output *out = NULL;
+	unsigned char *data;
+	size_t len;
+
+	if (!ctx || !page) return NULL;
+
+	fz_var(text);
+	fz_var(dev);
+	fz_var(buf);
+	fz_var(out);
+
+	fz_try(ctx)
+	{
+		ctm = fz_identity;
+		text = fz_new_stext_page(ctx, fz_bound_page(ctx, page));
+		dev = fz_new_stext_device(ctx, text, NULL);
+		fz_run_page(ctx, page, dev, ctm, NULL);
+		fz_close_device(ctx, dev);
+
+		buf = fz_new_buffer(ctx, 256);
+		out = fz_new_output_with_buffer(ctx, buf);
+		fz_print_stext_header_as_html(ctx, out);
+		fz_print_stext_page_as_html(ctx, out, text, page->number);
+		fz_print_stext_trailer_as_html(ctx, out);
+		fz_close_output(ctx, out);
+
+		len = fz_buffer_storage(ctx, buf, &data);
+		arr = (*env)->NewByteArray(env, (jsize)len);
+		if ((*env)->ExceptionCheck(env))
+			fz_throw_java(ctx, env);
+		if (!arr)
+			fz_throw(ctx, FZ_ERROR_GENERIC, "cannot create byte array");
+
+		(*env)->SetByteArrayRegion(env, arr, 0, (jsize)len, (jbyte *)data);
+		if ((*env)->ExceptionCheck(env))
+			fz_throw_java(ctx, env);
+	}
+	fz_always(ctx)
+	{
+		fz_drop_output(ctx, out);
+		fz_drop_buffer(ctx, buf);
+		fz_drop_device(ctx, dev);
+		fz_drop_stext_page(ctx, text);
+	}
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	return arr;
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_createLink)(JNIEnv *env, jobject self, jobject jrect, jstring juri)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_rect rect = from_Rect(env, jrect);
+	fz_link *link = NULL;
+	const char *uri = NULL;
+
+	if (!ctx || !page)
+		return NULL;
+
+	fz_try(ctx)
+	{
+		if (juri != NULL)
+		{
+			uri = (*env)->GetStringUTFChars(env, juri, NULL);
+			if (!uri)
+				fz_throw(ctx, FZ_ERROR_GENERIC, "cannot not get UTF string");
+		}
+
+		link = fz_create_link(ctx, page, rect, uri);
+	}
+	fz_always(ctx)
+	{
+		if (uri)
+			(*env)->ReleaseStringUTFChars(env, juri, uri);
+	}
+	fz_catch(ctx)
+	{
+		jni_rethrow(env, ctx);
+	}
+
+	return to_Link_safe_own(ctx, env, link);
+}
+
+JNIEXPORT void JNICALL
+FUN(Page_deleteLink)(JNIEnv *env, jobject self, jobject jlink)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_link *link = from_Link(env, jlink);
+
+	if (!ctx || !page)
+		return;
+
+	fz_try(ctx)
+		fz_delete_link(ctx, page, link);
+	fz_catch(ctx)
+		jni_rethrow_void(env, ctx);
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_getDocument)(JNIEnv *env, jobject self)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_document *doc = page ? page->doc : NULL;
+
+	if (!ctx || !page || !doc) return NULL;
+
+	return to_Document_safe_own(ctx, env, fz_keep_document(ctx, doc));
+}
+
+JNIEXPORT jstring JNICALL
+FUN(Page_getLabel)(JNIEnv *env, jobject self)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	char buf[100];
+
+	if (!ctx || !page)
+		return NULL;
+
+	fz_try(ctx)
+		fz_page_label(ctx, page, buf, sizeof buf);
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	return (*env)->NewStringUTF(env, buf);
+}
+
+JNIEXPORT jobject JNICALL
+FUN(Page_decodeBarcode)(JNIEnv *env, jobject self, jobject jsubarea, jfloat rotate)
+{
+	fz_context *ctx = get_context(env);
+	fz_page *page = from_Page(env, self);
+	fz_rect subarea = from_Rect(env, jsubarea);
+	fz_barcode_type type = FZ_BARCODE_NONE;
+	char *contents = NULL;
+	jobject jcontents;
+	jobject jbarcodeinfo;
+
+	if (!ctx || !page)
+		return NULL;
+
+	fz_try(ctx)
+		contents = fz_decode_barcode_from_page(ctx, &type, page, subarea, rotate);
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	jcontents = (*env)->NewStringUTF(env, contents);
+	fz_free(ctx, contents);
+	if (!jcontents || (*env)->ExceptionCheck(env))
+		return NULL;
+
+	jbarcodeinfo = (*env)->NewObject(env, cls_BarcodeInfo, mid_BarcodeInfo_init, type, jcontents);
+	if (!jbarcodeinfo || (*env)->ExceptionCheck(env))
+		return NULL;
+
+	return jbarcodeinfo;
+}