From: Kaj-Michael Lang <milang@onion.tal.org>
Date: Wed, 31 Oct 2007 13:12:06 +0000 (+0200)
Subject: More work on way name search.
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c6043054f87050f01e96b55d891847d5f1558249;p=mapper

More work on way name search.
---

diff --git a/src/osm-db.c b/src/osm-db.c
index 7a1643e..0d111d2 100644
--- a/src/osm-db.c
+++ b/src/osm-db.c
@@ -33,6 +33,7 @@
 #include "latlon.h"
 #include "gps.h"
 #include "osm-db.h"
+#include "settings.h"
 
 /* #define DEBUG_OSM */
 /* #define DEBUG_OSM_TIME */
@@ -169,10 +170,20 @@ if (sqlite3_prepare_v2(db, "select wid,type,nodes,flags,"
 		    -1, &sql.select_way2, NULL)!=SQLITE_OK)
 	return FALSE;
 
-if (sqlite3_prepare_v2(db, "select w.wid,w.name as name from way_names as w,way as ww where ww.type between $WTS and $WTY and w.wid=ww.wid and w.name like ? "
+if (sqlite3_prepare_v2(db, "select w.wid,w.name as name,"
+					"(($LAT-lat)*($LAT-lat))+(($LON-lon)*($LON-lon)) as d,wn.f,w.lat,wlon "
+					" from way_names as w,way as ww where "
+					" ww.type between $WTS and $WTY and w.wid=ww.wid and w.name like $NAME "
+					" and w.lat between $LAT-$RANGE and $LAT+$RANGE "
+					" and w.lon between $LON-$RANGE and $LON+$RANGE "
 					" union "
-					" select w.wid,n.name as name from way_names as w, way as ww,way_names_nls as n on w.wid=n.wid where "
-					" ww.type between $WTS and $WTY and w.wid=ww.wid and n.name like ? order by name",
+					" select w.wid,n.name as name,"
+					"(($LAT-w.lat)*($LAT-w.lat))+(($LON-w.lon)*($LON-w.lon)) as d,wn.f,w.lat,wlon "
+					" from way_names as w, way as ww,way_names_nls as n on w.wid=n.wid where "
+					" ww.type between $WTS and $WTY and w.wid=ww.wid and n.name like $NAME "
+					" and w.lat between $LAT-$RANGE and $LAT+$RANGE "
+					" and w.lon between $LON-$RANGE and $LON+$RANGE "
+					" order by d",
 			-1, &sql.select_way_name_search, NULL)!=SQLITE_OK)
 	return FALSE;
 
@@ -200,14 +211,16 @@ return TRUE;
 void
 osm_deinit(void)
 {
-sqlite3_finalize(sql.select_way_ref);
-sqlite3_finalize(sql.select_way_name);
-sqlite3_finalize(sql.select_way_next_seg);
-sqlite3_finalize(sql.select_way_prev_seg);
-sqlite3_finalize(sql.select_way_name_search);
-sqlite3_finalize(sql.select_way2);
-sqlite3_finalize(sql.select_place);
-sqlite3_finalize(sql.select_near_place);
+if (osmdb!=NULL) {
+	sqlite3_finalize(sql.select_way_ref);
+	sqlite3_finalize(sql.select_way_name);
+	sqlite3_finalize(sql.select_way_next_seg);
+	sqlite3_finalize(sql.select_way_prev_seg);
+	sqlite3_finalize(sql.select_way_name_search);
+	sqlite3_finalize(sql.select_way2);
+	sqlite3_finalize(sql.select_place);
+	sqlite3_finalize(sql.select_near_place);
+}
 osmdb=NULL;
 g_hash_table_destroy(place_cache);
 g_timer_destroy(dbt);
@@ -216,8 +229,13 @@ g_timer_destroy(dbt);
 gboolean
 osm_init(sqlite3 **db)
 {
-if (!db || !*db)
+place_cache=g_hash_table_new(g_direct_hash, g_direct_equal);
+dbt=g_timer_new();
+
+if (!db || !*db) {
+	osmdb=NULL;
 	return FALSE;
+}
 
 osmdb=*db;
 if (osm_db_prepare(osmdb)==FALSE) {
@@ -225,8 +243,6 @@ if (osm_db_prepare(osmdb)==FALSE) {
 	g_printf("SQLITE: %s\n", sqlite3_errmsg(osmdb));
 	return FALSE;
 }
-place_cache=g_hash_table_new(g_direct_hash, g_direct_equal);
-dbt=g_timer_new();
 return TRUE;
 }
 
@@ -903,3 +919,77 @@ if (check_place==TRUE && d>way_dist_range*4) {
 
 return map_loc->street ? TRUE : FALSE;
 }
+
+gboolean
+osm_way_search(gdouble lat, gdouble lon, gchar *text, GtkListStore **store)
+{
+GtkTreeIter iter;
+gchar *ltext=NULL;
+guint rows=0;
+gchar tmp1[16], tmp2[16];
+gdouble range=1;
+
+g_printf("Way Search: [%s] around %.6f %.6f\n", text, lat, lon);
+
+ltext=g_strdup_printf("%s%%", text);
+
+
+if (SQLITE_OK != sqlite3_bind_double(sql.select_way_name_search, 1, lat) ||
+    SQLITE_OK != sqlite3_bind_double(sql.select_way_name_search, 2, lon) ||
+    SQLITE_OK != sqlite3_bind_int(sql.select_way_name_search, 	 3, WAY_ROAD_START) ||
+    SQLITE_OK != sqlite3_bind_int(sql.select_way_name_search,    4, WAY_ROAD_END) ||
+    SQLITE_OK != sqlite3_bind_double(sql.select_way_name_search, 6, range) ||
+	SQLITE_OK != sqlite3_bind_text(sql.select_way_name_search,   5, ltext, -1, SQLITE_TRANSIENT)) {
+		g_printerr("Failed to bind values for sql.select_way_name_search\n");
+		sqlite3_clear_bindings(sql.select_way_name_search);
+		g_free(ltext);
+		return FALSE;
+}
+
+*store = gtk_list_store_new(ITEM_NUM_COLUMNS, 
+				G_TYPE_INT,		/* ID */
+				G_TYPE_INT,		/* Category ID */
+				G_TYPE_DOUBLE,	/* Latitude */
+				G_TYPE_DOUBLE,	/* Longitude */
+				G_TYPE_DOUBLE,	/* Distance */
+				G_TYPE_STRING,	/* Lat/Lon */
+				G_TYPE_STRING,	/* Label */
+				G_TYPE_STRING,	/* Desc. */
+				G_TYPE_STRING);	/* Category Label */
+
+while (SQLITE_ROW == sqlite3_step(sql.select_way_name_search)) {
+	gdouble rlat, rlon, dist;
+
+	rlat=sqlite3_column_double(sql.select_way_name_search, 0);
+	rlon=sqlite3_column_double(sql.select_way_name_search, 1);
+	lat_format(rlat, tmp1);
+	lon_format(rlon, tmp2);
+	dist=0.0;
+
+	gtk_list_store_append(*store, &iter);
+	gtk_list_store_set(*store, &iter,
+		ITEM_ID, sqlite3_column_int(sql.select_way_name_search, 2),
+		ITEM_CATID, sqlite3_column_int(sql.select_way_name_search, 5),
+		ITEM_LAT, rlat,
+		ITEM_LON, rlon,
+		ITEM_DIST, dist,
+		ITEM_LATLON, g_strdup_printf("%s, %s", tmp1, tmp2),
+		ITEM_LABEL, sqlite3_column_text(sql.select_way_name_search, 3),
+		ITEM_DESC, sqlite3_column_text(sql.select_way_name_search, 4),
+		ITEM_CATLAB, sqlite3_column_text(sql.select_way_name_search, 6),
+		-1);
+	rows++;
+}
+
+g_printf("Found: %d items\n", rows);
+
+sqlite3_reset(sql.select_way_name_search);
+sqlite3_clear_bindings(sql.select_way_name_search);
+
+if (ltext)
+	g_free(ltext);
+
+return TRUE;
+}
+
+