From ec58ce1cd1f8effe49f12485f65c345d75767dd5 Mon Sep 17 00:00:00 2001 From: Carl Worth Date: Sat, 16 Dec 2006 14:19:44 -0800 Subject: [PATCH] Add key press handling (letter guessing and backspace) --- demo-item.c | 2 +- rack-fancy.c | 232 ++++++++++++++++++++++++++++++++++++++------------- 2 files changed, 176 insertions(+), 58 deletions(-) diff --git a/demo-item.c b/demo-item.c index 4a9bbfd..0c8fc84 100644 --- a/demo-item.c +++ b/demo-item.c @@ -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); } diff --git a/rack-fancy.c b/rack-fancy.c index 310e6dd..99d0aa0 100644 --- a/rack-fancy.c +++ b/rack-fancy.c @@ -22,44 +22,85 @@ #include #include #include +#include #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 -- 2.43.0