]> git.cworth.org Git - wordgame/commitdiff
Add key press handling (letter guessing and backspace)
authorCarl Worth <cworth@cworth.org>
Sat, 16 Dec 2006 22:19:44 +0000 (14:19 -0800)
committerCarl Worth <cworth@cworth.org>
Sat, 16 Dec 2006 22:19:44 +0000 (14:19 -0800)
demo-item.c
rack-fancy.c

index 4a9bbfdd6b43320db6d7fc3e3f83f31efadbe39c..0c8fc8476c5ff4ca26e80554472cc5a4cada8792 100644 (file)
@@ -39,7 +39,7 @@ goo_demo_item_glide_to (GooCanvasItem *item,
 {
     goo_canvas_item_animate (item, x, y,
                             1.0, 0,
-                            1000, 40,
+                            500, 40,
                             GOO_CANVAS_ANIMATE_FREEZE);
 }
 
index 310e6dd54943d55f98c1c6043456c13b0d2b924b..99d0aa0fa9b305ffd8e8255cd781ac9d8a6f2102 100644 (file)
 #include <time.h>
 #include <ctype.h>
 #include <math.h>
+#include <gdk/gdkkeysyms.h>
 
 #include "word-game.h"
 #include "demo-item.h"
 
-static gboolean
-on_delete_event (GtkWidget *window,
-                GdkEvent  *event,
-                gpointer   unused_data)
+#define MAX_TILES 7
+
+typedef struct _tile
 {
-    exit (0);
+    char letter;
+    int rack_index;
+    int x, y;
+    GooCanvasItem *item;
+    gboolean guessed;
+} tile_t;
+
+typedef struct _rack
+{
+    tile_t *tiles[MAX_TILES];
+    int num_tiles;
+} rack_t;
+
+static rack_t the_rack;
+
+static char the_guess[MAX_TILES];
+static int the_guess_index = 0;
+
+#define LETTER_SIZE 60
+#define LETTER_PAD 5
+
+static void
+rack_tile_position (int i, int *x, int *y)
+{
+    *x = 20 + i * (LETTER_SIZE + LETTER_PAD);
+    *y = 85;
 }
 
-static GtkWidget *
-create_window (void)
+static void
+guess_tile_position (int i, int *x, int *y)
 {
-    GtkWidget *window, *scrolled_window;
+    rack_tile_position (i, x, y);
+    *y -= (LETTER_SIZE + LETTER_PAD);
+}
 
-    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-    gtk_window_set_default_size (GTK_WINDOW (window), 500, 500);
-    gtk_widget_show (window);
-    g_signal_connect (window, "delete_event",
-                     (GtkSignalFunc) on_delete_event, NULL);
+static tile_t *
+tile_create (GooCanvasItem *parent,
+            char letter, int rack_index)
+{
+    tile_t *tile;
 
-    scrolled_window = gtk_scrolled_window_new (NULL, NULL);
-    gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
-                                        GTK_SHADOW_IN);
-    gtk_scrolled_window_set_policy  (GTK_SCROLLED_WINDOW (scrolled_window),
-                                    GTK_POLICY_AUTOMATIC,
-                                    GTK_POLICY_AUTOMATIC);
-    gtk_widget_show (scrolled_window);
-    gtk_container_add (GTK_CONTAINER (window), scrolled_window);
+    tile = g_malloc (sizeof (tile_t));
+    tile->letter = tolower (letter);
+    tile->rack_index = rack_index;
+    rack_tile_position (rack_index, &tile->x, &tile->y);
+    tile->item = goo_demo_item_new (parent,
+                                   tile->x, tile->y,
+                                   LETTER_SIZE,
+                                   toupper (letter),
+                                   NULL);
+    tile->guessed = FALSE;
 
-    return scrolled_window;
+    return tile;
 }
 
-#define MAX_LETTERS 7
-static GooCanvasItem *letter_items[MAX_LETTERS];
-static int num_letters;
+static void
+tile_glide_to (tile_t *tile, int x, int y)
+{
+    goo_demo_item_glide_to (tile->item, x, y);
+    tile->x = x;
+    tile->y = y;
+}
+
+static gboolean
+on_delete_event (GtkWidget *window,
+                GdkEvent  *event,
+                gpointer   unused_data)
+{
+    exit (0);
+}
 
 static int
 rand_within (int num_values)
@@ -81,45 +122,135 @@ shuffle (int *array, int length)
     }
 }
 
-#define LETTER_SIZE 60
-#define LETTER_PAD 5
-
 static void
-get_letter_position (int i, int *x, int *y)
+rack_init (rack_t *rack, GooCanvasItem *parent, char *word)
 {
-    *x = 20 + i * (LETTER_SIZE + LETTER_PAD);
-    *y = 20;
+    int i;
+
+    for (i = 0; i < MIN (MAX_TILES, strlen (word)); i++)
+       rack->tiles[i] = tile_create (parent, word[i], i);
+    rack->num_tiles = i;
+    while (i < MAX_TILES)
+       rack->tiles[i] = NULL;
 }
 
 static gboolean
-on_button_press (GooCanvasItem  *item,
-                GooCanvasItem  *target,
-                GdkEventButton *event,
-                gpointer        data)
+rack_shuffle (rack_t *rack)
 {
-    int indices[MAX_LETTERS];
+    int indices[MAX_TILES];
     int i, x, y;
 
-    for (i = 0; i < num_letters; i++)
+    for (i = 0; i < rack->num_tiles; i++)
        indices[i] = i;
 
-    shuffle (indices, num_letters);
+    shuffle (indices, rack->num_tiles);
 
-    for (i = 0; i < num_letters; i++) {
-       get_letter_position (indices[i], &x, &y);
-       goo_demo_item_glide_to (letter_items[i], x, y);
+    for (i = 0; i < rack->num_tiles; i++) {
+       rack->tiles[i]->rack_index = indices[i];
+       rack_tile_position (indices[i], &x, &y);
+       tile_glide_to (rack->tiles[i], x, y);
     }
 
     return TRUE;
 }
 
+static gboolean
+on_key_press_event (GtkWidget  *widget,
+                   GdkEventKey *event,
+                   gpointer     user_data)
+{
+    int i, x, y;
+    char guess_letter;
+    rack_t *rack = user_data;
+
+    if (event->keyval == GDK_space) {
+       for (i = 0; i < rack->num_tiles; i++) {
+           if (rack->tiles[i]->guessed) {
+               rack_tile_position (rack->tiles[i]->rack_index, &x, &y);
+               tile_glide_to (rack->tiles[i], x, y);
+               rack->tiles[i]->guessed = FALSE;
+           }
+       }
+       the_guess_index = 0;
+       rack_shuffle (rack);
+       return TRUE;
+    }
+
+    if (event->keyval == GDK_BackSpace) {
+       gboolean found = FALSE;
+       int found_index;
+       x = 0;
+       for (i = 0; i < rack->num_tiles; i++) {
+           /* XXX: evil stuff here... please refactor a lot */
+           if (the_guess[the_guess_index-1] == rack->tiles[i]->letter &&
+               rack->tiles[i]->guessed &&
+               rack->tiles[i]->x > x)
+           {
+               found = TRUE;
+               found_index = i;
+           }
+       }
+       if (found) {
+           rack_tile_position (rack->tiles[found_index]->rack_index, &x, &y);
+           tile_glide_to (rack->tiles[found_index], x, y);
+           rack->tiles[found_index]->guessed = FALSE;
+           the_guess_index--;
+           return TRUE;
+       }
+       return FALSE;
+    }
+
+    /* XXX: event->string is deprecated, but the non-deprecated
+     * input-method stuff (GtkIMContext) is extremely non-obvious to
+     * use. */
+    guess_letter = tolower (event->string[0]);
+    for (i = 0; i < rack->num_tiles; i++) {
+       if (guess_letter == rack->tiles[i]->letter && 
+           ! rack->tiles[i]->guessed)
+       {
+           guess_tile_position (the_guess_index, &x, &y);
+           tile_glide_to (rack->tiles[i], x, y);
+           rack->tiles[i]->guessed = TRUE;
+           the_guess[the_guess_index++] = guess_letter;
+           return TRUE;
+       }
+    }
+
+    return FALSE;
+}
+
+static GtkWidget *
+create_window (void)
+{
+    GtkWidget *window, *scrolled_window;
+
+    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+    gtk_window_set_default_size (GTK_WINDOW (window), 500, 500);
+    gtk_widget_show (window);
+    g_signal_connect (window, "delete_event",
+                     (GtkSignalFunc) on_delete_event, NULL);
+
+    gtk_widget_add_events (window, GDK_KEY_PRESS_MASK);
+    g_signal_connect (window, "key_press_event",
+                     (GtkSignalFunc) on_key_press_event, &the_rack);
+
+    scrolled_window = gtk_scrolled_window_new (NULL, NULL);
+    gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
+                                        GTK_SHADOW_IN);
+    gtk_scrolled_window_set_policy  (GTK_SCROLLED_WINDOW (scrolled_window),
+                                    GTK_POLICY_AUTOMATIC,
+                                    GTK_POLICY_AUTOMATIC);
+    gtk_widget_show (scrolled_window);
+    gtk_container_add (GTK_CONTAINER (window), scrolled_window);
+
+    return scrolled_window;
+}
+
 static void
 create_canvas (GtkWidget *parent, char *word)
 {
     GtkWidget *canvas;
     GooCanvasItem *root;
-    int i;
-    int x, y;
 
     canvas = goo_canvas_new ();
     gtk_widget_set_size_request (canvas, 400, 400);
@@ -129,20 +260,7 @@ create_canvas (GtkWidget *parent, char *word)
 
     root = goo_canvas_get_root_item (GOO_CANVAS (canvas));
 
-    for (i = 0; i < MIN (MAX_LETTERS, strlen (word)); i++) {
-       get_letter_position (i, &x, &y);
-       letter_items[i] = goo_demo_item_new (root,
-                                            x, y,
-                                            LETTER_SIZE,
-                                            word[i],
-                                            NULL);
-
-       g_signal_connect (letter_items[i], "button_press_event",
-                         (GtkSignalFunc) on_button_press, NULL);
-    }
-    num_letters = i;
-    while (i < MAX_LETTERS)
-       letter_items[i] = NULL; 
+    rack_init (&the_rack, root, word);
 }
 
 int