“跳过空白页”与“对折”做互斥处理

hgdriver/hgdev/hg_scanner.cpp

@@ -2920,7 +2920,54 @@ int hg_scanner::setting_get_initial_boot_time(void* data, long* len)
 int hg_scanner::setting_set_discardblank(void* data, long* len)
 {
 	is_discardblank = *(bool*)data;
-	return SCANNER_ERR_OK;
+
+	//discard_blank and fold_in_half are mutually exclusive.
+	if (is_discardblank)
+	{
+		std::string	str(page_string(PAGE_FOLIO));
+		int id = lang_get_string_id(str.c_str(), false);
+		if (id == -1)
+		{
+			setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").erase(str.c_str());
+		}
+		else
+		{
+			for (int i = 0; i < setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").size(); ++i)
+			{
+				int val = 0;
+				setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").at(i).get_to(val);
+				if (val == id)
+				{
+					setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").erase(i);
+					break;
+				}
+			}
+		}
+	}
+	else
+	{
+		std::string	str(page_string(PAGE_FOLIO));
+		int id = lang_get_string_id(str.c_str(), false), val = 0;
+		bool add = true;
+		for (int i = 0; i < setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").size(); ++i)
+		{
+			setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").at(i).get_to(val);
+			if (val == id)
+			{
+				add = false;
+				break;
+			}
+		}
+		if (add)
+		{
+			if (id == -1)
+				setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").push_back(str);
+			else
+				setting_jsn_.at(SANE_STD_OPT_NAME_PAGE).at("range").push_back(id);
+		}
+	}
+
+	return SCANNER_ERR_RELOAD_OPT_PARAM;
 }
 int hg_scanner::on_color_mode_changed(int& color_mode)
 {