Add some minimal GTK+ love to kub

This initializes GTK+, creates a window, and establishes 4 callback functions
for handling expose, key press, and button press/release events. So far,
the callbacks are just printing things to stdout and not really doing anything
useful yet.

diff --git a/Makefile b/Makefile
index c8fbe33ce81a498f445a718105f4cde03bed85c1..f51e1cdd6e8ed11d9d198cff3da810040343f550 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2,10 +2,11 @@ WARN_CFLAGS=-Wall -Wpointer-arith -Wstrict-prototypes \
        -Wmissing-prototypes -Wmissing-declarations \
        -Wnested-externs -fno-strict-aliasing
 
-KUB_CFLAGS=$(WARN_CFLAGS)
+KUB_CFLAGS=$(WARN_CFLAGS) `pkg-config --cflags gtk+-2.0` -DGTK_DISABLE_DEPRECATED
+KUB_LDFLAGS=`pkg-config --libs gtk+-2.0`
 
 kub: kub.c
-       $(CC) $(KUB_CFLAGS) -o $@ $^
+       $(CC) $(KUB_CFLAGS) $(KUB_LDFLAGS) -o $@ $^
 
 clean:
        rm -f kub *.o

diff --git a/kub.c b/kub.c
index fc5c8b688225c55b9a1061e287bfcd804d3c0e4e..ff190581b6f4f7a2dd253815d571e72e001a617a 100644 (file)
--- a/kub.c
+++ b/kub.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
+#include <gtk/gtk.h>
 
 char *colors[] = {"Black", "Blue", "Red", "Yellow"};
 
@@ -37,6 +38,8 @@ typedef struct player {
 } player_t;
 
 #define GAME_MAX_PLAYERS 4
+#define GAME_WINDOW_DEFAULT_WIDTH  800
+#define GAME_WINDOW_DEFAULT_HEIGHT 600
 
 typedef struct game {
     player_t players[GAME_MAX_PLAYERS];
@@ -264,8 +267,37 @@ static void game_init(game_t *game)
     deck_shuffle(&game->deck);
 }
 
-int main(void)
+static gboolean on_expose_event (GtkWidget *widget, GdkEventExpose *event, game_t *game)
 {
+    printf ("I should be drawing something here\n");
+
+    return TRUE;
+}
+
+static gboolean on_key_press_event (GtkWidget *widget, GdkEventKey *event, game_t *game)
+{
+    printf ("You pressed key %d\n", event->keyval);
+
+    return TRUE;
+}
+
+static gboolean on_button_press_event (GtkWidget *widget, GdkEventButton *event, game_t *game)
+{
+    printf ("You pressed button %d\n", event->button);
+
+    return TRUE;
+}
+
+static gboolean on_button_release_event (GtkWidget *widget, GdkEventButton *event, game_t *game)
+{
+    printf ("You released button %d\n", event->button);
+
+    return TRUE;
+}
+
+int main(int argc, char *argv[])
+{
+    GtkWidget *window;
     game_t game;
     
     srand(time(NULL));
@@ -275,6 +307,35 @@ int main(void)
     deck_deal(&game, &game.deck);
     hand_print(&game);
     deck_print(&game.deck);
+
+    gtk_init (&argc, &argv);
+
+    /* Create a new window */
+    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+    gtk_window_set_default_size (GTK_WINDOW (window),
+                                GAME_WINDOW_DEFAULT_WIDTH,
+                                GAME_WINDOW_DEFAULT_HEIGHT);
+
+    gtk_widget_set_events (window,
+                          GDK_EXPOSURE_MASK |
+                          GDK_KEY_PRESS_MASK | 
+                          GDK_BUTTON_PRESS_MASK | 
+                          GDK_BUTTON_RELEASE_MASK);
+
+    g_signal_connect (G_OBJECT (window), "delete_event",
+                     G_CALLBACK (gtk_main_quit), NULL);
+    g_signal_connect (G_OBJECT (window), "expose_event",
+                     G_CALLBACK (on_expose_event), &game);
+    g_signal_connect (G_OBJECT (window), "key_press_event",
+                     G_CALLBACK (on_key_press_event), &game);
+    g_signal_connect (G_OBJECT (window), "button_press_event",
+                     G_CALLBACK (on_button_press_event), &game);
+    g_signal_connect (G_OBJECT (window), "button_release_event",
+                     G_CALLBACK (on_button_release_event), &game);
+
+    gtk_widget_show_all (window);
+    gtk_main ();
+
     return 0;
-    
+
 }