From 6d138d4b782d7af83698ef23c4d04e03540fc03f Mon Sep 17 00:00:00 2001
From: Kaj-Michael Lang <milang@onion.tal.org>
Date: Fri, 28 Dec 2007 18:02:11 +0200
Subject: [PATCH] Add generic information printer. Convert speed display to use
 it. Remove old code.

---
 src/map.c | 62 +++++++++++++++++--------------------------------------
 1 file changed, 19 insertions(+), 43 deletions(-)

diff --git a/src/map.c b/src/map.c
index 9488a88..8ba4f47 100644
--- a/src/map.c
+++ b/src/map.c
@@ -110,12 +110,6 @@ static gboolean map_data_needs_refresh=FALSE;
 
 static osm_location map_loc = {NULL, NULL, NULL, FALSE, FALSE, 0, 0, 0.0, 0.0, 0 };
 
-typedef struct _map_tile_rdata map_tile_rdata;
-struct _map_tile_rdata {
-	guint tilex, tiley, zoom;
-	guint destx, desty;
-};
-
 /* Tile max age, 1 week */
 #define TILE_MAX_AGE (604800)
 
@@ -174,7 +168,7 @@ gdk_gc_set_rgb_fg_color(speed_gc2, &color);
 speed_context=gtk_widget_get_pango_context(map_widget);
 speed_layout=pango_layout_new(speed_context);
 speed_fontdesc=pango_font_description_new();
-pango_font_description_set_size(speed_fontdesc, 64 * PANGO_SCALE);
+pango_font_description_set_size(speed_fontdesc, 48 * PANGO_SCALE);
 pango_layout_set_font_description(speed_layout, speed_fontdesc);
 pango_layout_set_alignment(speed_layout, PANGO_ALIGN_CENTER);
 
@@ -399,16 +393,6 @@ if (pixbuf) {
 gdk_draw_rectangle(_map_pixmap, _map_widget->style->black_gc, TRUE, destx, desty, TILE_SIZE_PIXELS, TILE_SIZE_PIXELS);
 }
 
-gboolean 
-map_render_tile_idle(map_tile_rdata *mtr)
-{
-map_render_tile(mtr->tilex, mtr->tiley, mtr->destx, mtr->desty, FALSE);
-gtk_widget_queue_draw_area(_map_widget, mtr->destx, mtr->desty, TILE_SIZE_PIXELS, TILE_SIZE_PIXELS);
-
-g_slice_free(map_tile_rdata, mtr);
-return FALSE;
-}
-
 void
 map_render_data(void)
 {
@@ -504,10 +488,8 @@ BOUND(new_center_unity, _min_center.unity, _max_center.unity);
 _center.unitx = new_center_unitx;
 _center.unity = new_center_unity;
 
-new_base_tilex = grid2tile((gint) pixel2grid((gint)unit2pixel((gint) _center.unitx))
-			   - (gint)_screen_grids_halfwidth);
-new_base_tiley = grid2tile(pixel2grid(unit2pixel(_center.unity))
-			   - _screen_grids_halfheight);
+new_base_tilex = grid2tile((gint) pixel2grid((gint)unit2pixel((gint) _center.unitx)) - (gint)_screen_grids_halfwidth);
+new_base_tiley = grid2tile(pixel2grid(unit2pixel(_center.unity)) - _screen_grids_halfheight);
 
 /* Same zoom level, so it's likely that we can reuse some of the old
  * buffer's pixels. */
@@ -544,11 +526,9 @@ if (new_base_tilex != _base_tilex || new_base_tiley != _base_tiley) {
 		new_x = base_new_x;
 		old_x = base_old_x;
 		/* Iterate over the x tile values. */
-		for (k = 0; k < BUF_WIDTH_TILES;
-		     ++k, new_x += iox, old_x += iox) {
+		for (k = 0; k < BUF_WIDTH_TILES; ++k, new_x += iox, old_x += iox) {
 			/* Can we get this grid block from the old buffer?. */
-			if (old_x >= 0 && old_x < BUF_WIDTH_TILES
-			    && old_y >= 0 && old_y < BUF_HEIGHT_TILES) {
+			if (old_x >= 0 && old_x < BUF_WIDTH_TILES && old_y >= 0 && old_y < BUF_HEIGHT_TILES) {
 				/* Copy from old buffer to new buffer. */
 				gdk_draw_drawable(_map_pixmap,
 						  _gc[COLORABLE_MARK],
@@ -895,33 +875,29 @@ if (_key_zoom_new < _zoom) {
 return TRUE;
 }
 
+static void
+map_information_text(guint x, guint y, GdkGC *gc, gchar *msg)
+{
+guint width, height;
+
+pango_layout_set_text(speed_layout, msg, -1);
+pango_layout_get_pixel_size(speed_layout, &width, &height);
+gtk_widget_queue_draw_area(_map_widget, x - 5, y - 5, width * 3 + 15, height + 5);
+gdk_window_process_all_updates();
+gdk_draw_layout(_map_widget->window, gc, x, y, speed_layout);
+}
+
 static void
 map_speed_draw(void)
 {
 GdkGC *gc;
 gfloat cur_speed;
 gchar *buffer;
-static guint x = 0, y = 0, width = 0, height = 0;
 
 cur_speed = _gps.speed * UNITS_CONVERT[_units];
-
-if (cur_speed > _speed_limit) {
-	gc = speed_gc1;
-} else {
-	gc = speed_gc2;
-}
-
+gc=(cur_speed > _speed_limit) ? speed_gc1 : speed_gc2;
 buffer = g_strdup_printf("%0.0f", cur_speed);
-pango_layout_set_text(speed_layout, buffer, -1);
-pango_layout_get_pixel_size(speed_layout, &width, &height);
-
-gtk_widget_queue_draw_area(_map_widget, x - 5, y - 5, width * 3 + 15, height + 5);
-gdk_window_process_all_updates();
-
-x = 10;
-y = 10;
-
-gdk_draw_layout(_map_widget->window, gc, x, y, speed_layout);
+map_information_text(10, 10, gc, buffer);
 g_free(buffer);
 }
 
-- 
2.39.5