static gboolean
on_button_press (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventButton *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (target);
char *item_id = g_object_get_data (G_OBJECT (model), "id");
g_print ("%s received 'button-press' signal\n", item_id);
if (strstr (item_id, "explicit"))
{
GooCanvas *canvas;
GdkGrabStatus status;
GdkEventMask mask = GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK
| GDK_POINTER_MOTION_MASK
| GDK_POINTER_MOTION_HINT_MASK
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK;
canvas = goo_canvas_item_get_canvas (item);
status = goo_canvas_pointer_grab (canvas, item, mask, NULL, event->time);
if (status == GDK_GRAB_SUCCESS)
g_print ("grabbed pointer\n");
else
g_print ("pointer grab failed\n");
}
return FALSE;
}
static gboolean
on_motion (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventMotion *event,
gpointer data)
{
GooCanvas *canvas = goo_canvas_item_get_canvas (item);
GooCanvasItemModel *model = goo_canvas_item_get_model (target);
int x, y, width, shape_a, shape_b, shape_c;
gboolean change = FALSE;
if (!(event->state & GDK_BUTTON1_MASK))
return FALSE;
if (model == g_object_get_data (G_OBJECT (canvas), "width_drag_box"))
{
y = event->y;
width = (MIDDLE - y) / 5;
if (width < 0)
return FALSE;
g_object_set_data (G_OBJECT (canvas), "width", GINT_TO_POINTER (width));
set_arrow_shape (canvas);
}
else if (model == g_object_get_data (G_OBJECT (canvas), "shape_a_drag_box"))
{
x = event->x;
width = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (canvas), "width"));
shape_a = (RIGHT - x) / 10 / width;
if ((shape_a < 0) || (shape_a > 30))
return FALSE;
g_object_set_data (G_OBJECT (canvas), "shape_a",
GINT_TO_POINTER (shape_a));
set_arrow_shape (canvas);
}
else if (model == g_object_get_data (G_OBJECT (canvas), "shape_b_c_drag_box"))
{
width = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (canvas), "width"));
x = event->x;
shape_b = (RIGHT - x) / 10 / width;
if ((shape_b >= 0) && (shape_b <= 30)) {
g_object_set_data (G_OBJECT (canvas), "shape_b",
GINT_TO_POINTER (shape_b));
change = TRUE;
}
y = event->y;
shape_c = (MIDDLE - y) * 2 / 10 / width;
if (shape_c >= 0) {
g_object_set_data (G_OBJECT (canvas), "shape_c",
GINT_TO_POINTER (shape_c));
change = TRUE;
}
if (change)
set_arrow_shape (canvas);
}
return TRUE;
}
static gboolean
on_motion_notify_event_cb (GooCanvasItem *item,
GooCanvasItem *target_item,
GdkEventMotion *event,
gpointer user_data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (item);
if (drag_item == item && drag_item != NULL)
{
gdouble rel_x = event->x - drag_x;
gdouble rel_y = event->y - drag_y;
if (drag_mode == MODE_MOVE)
{
g_object_set (G_OBJECT (model), "x", item_x + rel_x, "y", item_y + rel_y, NULL);
}
else
{
gdouble new_width = MAX (item_width + rel_x, 5.0);
gdouble new_height = MAX (item_height + rel_y, 5.0);
g_object_set (G_OBJECT (model), "width", new_width, "height", new_height, NULL);
}
return TRUE;
}
return FALSE;
}
static gboolean
on_button_press (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventButton *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (item);
GooCanvasItemModel *parent1, *parent2, *parent;
if (event->button != 1 || event->type != GDK_BUTTON_PRESS)
return FALSE;
parent1 = g_object_get_data (G_OBJECT (model), "parent1");
parent2 = g_object_get_data (G_OBJECT (model), "parent2");
parent = goo_canvas_item_model_get_parent (model);
g_object_ref (model);
goo_canvas_item_model_remove (model);
if (parent == parent1)
goo_canvas_item_model_add_child (parent2, model, -1);
else
goo_canvas_item_model_add_child (parent1, model, -1);
g_object_unref (model);
return TRUE;
}
static gboolean
on_button_press_event_cb (GooCanvasItem *item,
GooCanvasItem *target_item,
GdkEventButton *event,
gpointer user_data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (item);
if (event->state & GDK_CONTROL_MASK)
{
if (event->button == 1 || event->button == 3)
{
if (event->button == 1)
drag_mode = MODE_MOVE;
else
drag_mode = MODE_RESIZE;
drag_item = item;
drag_x = event->x;
drag_y = event->y;
g_object_get (G_OBJECT (model),
"x", &item_x,
"y", &item_y,
"width", &item_width,
"height", &item_height,
NULL);
goo_canvas_pointer_grab (GOO_CANVAS (user_data), item, GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_RELEASE_MASK, NULL, event->time);
return TRUE;
}
}
return FALSE;
}
static gboolean
on_motion_notify (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventMotion *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (target);
char *item_id = g_object_get_data (G_OBJECT (model), "id");
g_print ("%s received 'motion-notify' signal\n", item_id);
return FALSE;
}
static gboolean
on_key_press (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventKey *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (item);
gchar *id = g_object_get_data (G_OBJECT (model), "id");
g_print ("%s received key-press event\n", id ? id : "unknown");
return FALSE;
}
static gboolean
on_leave_notify (GooCanvasItem *item,
GooCanvasItem *target,
GdkEvent *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (target);
g_object_set (model,
"fill_color", "black",
NULL);
return TRUE;
}
static gboolean
on_focus_in (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventFocus *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (item);
gchar *id = g_object_get_data (G_OBJECT (model), "id");
g_print ("%s received focus-in event\n", id ? id : "unknown");
/* Note that this is only for testing. Setting item properties to indicate
focus isn't a good idea for real apps, as there may be multiple views. */
g_object_set (model, "stroke-color", "black", NULL);
return FALSE;
}
static gboolean
on_button_press (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventButton *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (item);
gchar *id = g_object_get_data (G_OBJECT (model), "id");
GooCanvas *canvas;
g_print ("%s received button-press event\n", id ? id : "unknown");
canvas = goo_canvas_item_get_canvas (item);
goo_canvas_grab_focus (canvas, item);
return TRUE;
}
static gboolean
piece_leave_notify (GooCanvasItem *item,
GooCanvasItem *target,
GdkEvent *event,
gpointer data)
{
GooCanvasItemModel *model, *text;
#if 0
g_print ("In piece_leave_notify\n");
#endif
model = goo_canvas_item_get_model (item);
text = g_object_get_data (G_OBJECT (model), "text");
g_object_set (text,
"fill_color", "black",
NULL);
return FALSE;
}
static gboolean
on_button_release (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventButton *event,
gpointer data)
{
GooCanvasItemModel *model = goo_canvas_item_get_model (target);
char *item_id = g_object_get_data (G_OBJECT (model), "id");
g_print ("%s received 'button-release' signal\n", item_id);
if (strstr (item_id, "explicit"))
{
GooCanvas *canvas;
canvas = goo_canvas_item_get_canvas (item);
goo_canvas_pointer_ungrab (canvas, item, event->time);
g_print ("released pointer grab\n");
}
return FALSE;
}
static gboolean
piece_button_press (GooCanvasItem *item,
GooCanvasItem *target,
GdkEventButton *event,
gpointer data)
{
GooCanvas *canvas;
GooCanvasItemModel **board;
GooCanvasItemModel *model, *text G_GNUC_UNUSED;
int num G_GNUC_UNUSED, pos, newpos;
int x, y;
double dx = 0.0, dy = 0.0;
int move;
model = goo_canvas_item_get_model (item);
canvas = goo_canvas_item_get_canvas (item);
board = g_object_get_data (G_OBJECT (canvas), "board");
num = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (model), "piece_num"));
pos = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (model), "piece_pos"));
text = g_object_get_data (G_OBJECT (model), "text");
#if 0
g_print ("In piece_event pos: %i,%i num: %i\n", pos % 4, pos / 4,
num + 1);
#endif
y = pos / 4;
x = pos % 4;
move = TRUE;
if ((y > 0) && (board[(y - 1) * 4 + x] == NULL)) {
dx = 0.0;
dy = -1.0;
y--;
} else if ((y < 3) && (board[(y + 1) * 4 + x] == NULL)) {
dx = 0.0;
dy = 1.0;
y++;
} else if ((x > 0) && (board[y * 4 + x - 1] == NULL)) {
dx = -1.0;
dy = 0.0;
x--;
} else if ((x < 3) && (board[y * 4 + x + 1] == NULL)) {
dx = 1.0;
dy = 0.0;
x++;
} else
move = FALSE;
if (move) {
newpos = y * 4 + x;
board[pos] = NULL;
board[newpos] = model;
g_object_set_data (G_OBJECT (model), "piece_pos", GINT_TO_POINTER (newpos));
goo_canvas_item_model_translate (model, dx * PIECE_SIZE,
dy * PIECE_SIZE);
test_win (board);
}
return FALSE;
}