[gnome-robots/arnaudb/wip/gtk4: 3/33] Use GtkGestureMultiPress.

[Arnaud B. <arnaudb src gnome org>]

commit e42921b12791c8bebf57d0cbea3079f2255f9833
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sat May 23 21:40:30 2020 +0200

    Use GtkGestureMultiPress.

 src/game.c         | 14 +++++++++-----
 src/game.h         |  6 +++++-
 src/gnome-robots.c |  5 ++++-
 3 files changed, 18 insertions(+), 7 deletions(-)
---
diff --git a/src/game.c b/src/game.c
index b340ce8..61a3254 100644
--- a/src/game.c
+++ b/src/game.c
@@ -1321,21 +1321,25 @@ get_dir (int ix, int iy, int *odx, int *ody)
   *ody = movetable[octant][1];
 }
 
-gboolean
-mouse_cb (GtkWidget * widget, GdkEventButton * e, gpointer data)
+void
+mouse_cb (GtkGestureMultiPress *gesture,
+          gint                  n_press,
+          gdouble               x,
+          gdouble               y,
+          gpointer              user_data)
 {
   int dx, dy;
 
   if (game_state != STATE_PLAYING)
-    return TRUE;
+    return;
 
-  get_dir (e->x, e->y, &dx, &dy);
+  get_dir ((int)x, (int)y, &dx, &dy);
 
   if (player_move (dx, dy)) {
     move_robots ();
   }
 
-  return TRUE;
+  return;
 }
 
 gboolean
diff --git a/src/game.h b/src/game.h
index c36c904..8f88184 100644
--- a/src/game.h
+++ b/src/game.h
@@ -28,7 +28,11 @@ void quit_game (void);
 void game_keypress (gint);
 void show_scores (void);
 void start_new_game (void);
-gboolean mouse_cb (GtkWidget * widget, GdkEventButton * e, gpointer data);
+void mouse_cb (GtkGestureMultiPress *gesture,
+               gint                  n_press,
+               gdouble               x,
+               gdouble               y,
+               gpointer              user_data);
 gboolean move_cb (GtkWidget * widget, GdkEventMotion * e, gpointer data);
 /**********************************************************************/
 
diff --git a/src/gnome-robots.c b/src/gnome-robots.c
index 798cd6d..90e24d4 100644
--- a/src/gnome-robots.c
+++ b/src/gnome-robots.c
@@ -352,6 +352,7 @@ activate (GtkApplication *app, gpointer user_data)
   GtkSizeGroup *size_group;
   GtkStyleContext *style_context;
   GamesScoresDirectoryImporter *importer;
+  GtkGesture *click_controller;
 
   if (window != NULL)
   {
@@ -385,12 +386,14 @@ activate (GtkApplication *app, gpointer user_data)
 
   game_area = gtk_drawing_area_new ();
   gtk_widget_add_events (game_area, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | 
GDK_POINTER_MOTION_MASK);
-  g_signal_connect (G_OBJECT (game_area), "button-press-event",     G_CALLBACK (mouse_cb),  NULL);
   g_signal_connect (G_OBJECT (game_area), "motion-notify-event",    G_CALLBACK (move_cb),   NULL);
   g_signal_connect (G_OBJECT (game_area), "configure-event",        G_CALLBACK (resize_cb), NULL);
   g_signal_connect (G_OBJECT (game_area), "draw",                   G_CALLBACK (draw_cb),   NULL);
   g_signal_connect (G_OBJECT (game_area), "destroy",                G_CALLBACK (gtk_widget_destroyed), 
&game_area);
 
+  click_controller = gtk_gesture_multi_press_new (game_area);
+  g_signal_connect (G_OBJECT (click_controller), "pressed", G_CALLBACK (mouse_cb), NULL);
+
   gridframe = GTK_WIDGET (games_grid_frame_new (GAME_WIDTH, GAME_HEIGHT));
   gtk_container_add (GTK_CONTAINER (gridframe), game_area);