From 7614560cb523749452658322bf149757b26dea6b Mon Sep 17 00:00:00 2001
From: Kaj-Michael Lang <milang@tal.org>
Date: Mon, 4 Aug 2008 11:23:09 +0300
Subject: [PATCH] MapWidget: Some cleanups and warning fixes

---
 libs/libgtkmap/gtkmap.c | 49 ++++++++++++++++++++++++++++++++---------
 1 file changed, 38 insertions(+), 11 deletions(-)

diff --git a/libs/libgtkmap/gtkmap.c b/libs/libgtkmap/gtkmap.c
index 7e20020..1ed9887 100644
--- a/libs/libgtkmap/gtkmap.c
+++ b/libs/libgtkmap/gtkmap.c
@@ -1067,7 +1067,7 @@ return TRUE;
 }
 
 static void
-gtk_map_render_waypoint(GtkWidget *widget, guint x1, guint y1)
+gtk_map_render_waypoint(GtkWidget *widget, guint x, guint y)
 {
 GtkMap *map;
 GtkMapPriv *priv;
@@ -1080,11 +1080,22 @@ priv=GTK_MAP_GET_PRIVATE(map);
 
 gc=priv->gc_waypoint;
 
-if ((x1 > priv->buf_width_pixels) || (y1 > priv->buf_height_pixels))
+if ((x > priv->buf_width_pixels) || (y > priv->buf_height_pixels))
 	return;
-gdk_draw_arc(widget->window, gc, FALSE, x1 - priv->draw_width, y1 - priv->draw_width, 2 * priv->draw_width, 2 * priv->draw_width, 0, 360 * 64);
+
+gdk_draw_arc(widget->window, gc, FALSE, x - priv->draw_width, y - priv->draw_width, 2 * priv->draw_width, 2 * priv->draw_width, 0, 360 * 64);
 }
 
+/**
+ * gtk_map_render_path_segment:
+ * @widget
+ * @unitx1
+ * @unity1
+ * @unitx2
+ * @unity2
+ *
+ * Draw a path segment from unitx/y1 to unitx/y2
+ */
 static void
 gtk_map_render_path_segment(GtkWidget *widget, guint unitx1, guint unity1, guint unitx2, guint unity2)
 {
@@ -1111,6 +1122,13 @@ if (!((x1 > priv->buf_width_pixels && x2 > priv->buf_width_pixels) || (x1 < 0 &&
 }
 }
 
+/**
+ * gtk_map_render_path:
+ * @widget
+ * @path
+ * @event
+ *
+ */
 static void
 gtk_map_render_path(GtkWidget *widget, Path *path, GdkEventExpose *event)
 {
@@ -1128,15 +1146,19 @@ map=GTK_MAP(widget);
 priv=GTK_MAP_GET_PRIVATE(map);
 
 for (curr = path->head, wcurr = path->whead; curr++ != path->tail;) {
-	/* Draw the line from (curr - 1) to (curr). */
 
+	/* Draw the line from (curr - 1) to (curr). */
 	gtk_map_render_path_segment(widget, curr[-1].unitx, curr[-1].unity, curr->unitx, curr->unity);
+
 	/* Now, check if curr is a waypoint. */
 	if (wcurr && wcurr <= path->wtail && wcurr->point == curr) {
-		guint x1 = unit2bufx(wcurr->point->unitx);
-		guint y1 = unit2bufy(wcurr->point->unity);
+		guint wx;
+		guint wy;
+
+		wx=unit2bufx(wcurr->point->unitx);
+		wy=unit2bufy(wcurr->point->unity);
 
-		gtk_map_render_waypoint(widget, x1, y1);
+		gtk_map_render_waypoint(widget, wx, wy);
 		wcurr++;
 	}
 }
@@ -2071,7 +2093,7 @@ if (new_base_tilex != priv->base_tilex || new_base_tiley != priv->base_tiley) {
 						GTK_MAP_TILE_SIZE_PIXELS,
 						GTK_MAP_TILE_SIZE_PIXELS);
 			} else {
-				gtk_map_render_tile(GTK_MAP(map), 
+				gtk_map_render_tile(widget, 
 						new_base_tilex + new_x,
 						new_base_tiley + new_y,
 						new_x * GTK_MAP_TILE_SIZE_PIXELS,
@@ -2136,8 +2158,8 @@ unit2latlon(priv->center.unitx, priv->center.unity, lat, lon);
 gboolean
 gtk_map_goto_position(GtkWidget *widget, Position *pos)
 {
-g_return_if_fail(GTK_IS_MAP(widget));
-g_return_if_fail(pos);
+g_return_val_if_fail(GTK_IS_MAP(widget), FALSE);
+g_return_val_if_fail(pos, FALSE);
 
 if (pos->valid==FALSE)
 	return FALSE;
@@ -2219,7 +2241,7 @@ priv=GTK_MAP_GET_PRIVATE(map);
 
 for (y = 0; y < priv->buf_height_tiles; ++y)
 	for (x = 0; x < priv->buf_width_tiles; ++x)
-		gtk_map_render_tile(map, priv->base_tilex + x, priv->base_tiley + y, x * GTK_MAP_TILE_SIZE_PIXELS, y * GTK_MAP_TILE_SIZE_PIXELS, FALSE);
+		gtk_map_render_tile(widget, priv->base_tilex + x, priv->base_tiley + y, x * GTK_MAP_TILE_SIZE_PIXELS, y * GTK_MAP_TILE_SIZE_PIXELS, FALSE);
 
 gtk_widget_queue_draw(widget);
 }
@@ -2258,6 +2280,11 @@ gtk_map_set_autozoom(GtkWidget *widget, gboolean az)
 GtkMap *map;
 GtkMapPriv *priv;
 
+g_return_val_if_fail(GTK_IS_MAP(widget), FALSE);
+
+map=GTK_MAP(widget);
+priv=GTK_MAP_GET_PRIVATE(map);
+
 /* Check that we have a track path set */
 return TRUE;
 }
-- 
2.39.5