static void
setup_canvas (GtkWidget *canvas)
{
GooCanvasItem *root, *path G_GNUC_UNUSED;
root = goo_canvas_get_root_item (GOO_CANVAS (canvas));
g_signal_connect (root, "button_press_event",
G_CALLBACK (on_background_button_press), NULL);
/* Test the simple commands like moveto and lineto: MmZzLlHhVv. */
path1 = goo_canvas_path_new (root, "M 20 20 L 40 40", NULL);
path = goo_canvas_path_new (root, "M30 20 l20, 20", NULL);
path = goo_canvas_path_new (root, "M 60 20 H 80", NULL);
path = goo_canvas_path_new (root, "M60 40 h20", NULL);
path = goo_canvas_path_new (root, "M 100,20 V 40", NULL);
path = goo_canvas_path_new (root, "M 120 20 v 20", NULL);
path = goo_canvas_path_new (root, "M 140 20 h20 v20 h-20 z", NULL);
path = goo_canvas_path_new (root,
"M 180 20 h20 v20 h-20 z m 5,5 h10 v10 h-10 z",
"fill-color", "red",
"fill-rule", CAIRO_FILL_RULE_EVEN_ODD,
NULL);
path = goo_canvas_path_new (root, "M 220 20 L 260 20 L 240 40 z",
"fill-color", "red",
"stroke-color", "blue",
"line-width", 3.0,
NULL);
/* Test the bezier curve commands: CcSsQqTt. */
path = goo_canvas_path_new (root,
"M20,100 C20,50 100,50 100,100 S180,150 180,100",
NULL);
path = goo_canvas_path_new (root,
"M220,100 c0,-50 80,-50 80,0 s80,50 80,0",
NULL);
path = goo_canvas_path_new (root,
"M20,200 Q60,130 100,200 T180,200",
NULL);
path = goo_canvas_path_new (root,
"M220,200 q40,-70 80,0 t80,0",
NULL);
/* Test the elliptical arc commands: Aa. */
path = goo_canvas_path_new (root,
"M200,500 h-150 a150,150 0 1,0 150,-150 z",
"fill-color", "red",
"stroke-color", "blue",
"line-width", 5.0,
NULL);
path = goo_canvas_path_new (root,
"M175,475 v-150 a150,150 0 0,0 -150,150 z",
"fill-color", "yellow",
"stroke-color", "blue",
"line-width", 5.0,
NULL);
path = goo_canvas_path_new (root,
"M400,600 l 50,-25 "
"a25,25 -30 0,1 50,-25 l 50,-25 "
"a25,50 -30 0,1 50,-25 l 50,-25 "
"a25,75 -30 0,1 50,-25 l 50,-25 "
"a25,100 -30 0,1 50,-25 l 50,-25",
"stroke-color", "red",
"line-width", 5.0,
NULL);
path = goo_canvas_path_new (root,
"M 525,75 a100,50 0 0,0 100,50",
"stroke-color", "red",
"line-width", 5.0,
NULL);
path = goo_canvas_path_new (root,
"M 725,75 a100,50 0 0,1 100,50",
"stroke-color", "red",
"line-width", 5.0,
NULL);
path = goo_canvas_path_new (root,
"M 525,200 a100,50 0 1,0 100,50",
"stroke-color", "red",
"line-width", 5.0,
NULL);
path = goo_canvas_path_new (root,
"M 725,200 a100,50 0 1,1 100,50",
"stroke-color", "red",
"line-width", 5.0,
NULL);
}
/* ==================================== */
static GooCanvasItem *
hanoi_create_item(GooCanvasItem *parent)
{
int i,j;
double gap_x, gap_y;
double baseline;
GooCanvasItem *item = NULL;
guint color_to_place;
guint used_colors[NUMBER_OF_COLOR];
guint w;
boardRootItem = \
goo_canvas_group_new (parent,
NULL);
if (gcomprisBoard->level == 1)
{
item = goo_canvas_svg_new (boardRootItem,
gc_skin_rsvg_get(),
"svg-id", "#BAR_BG",
NULL);
SET_ITEM_LOCATION_CENTER(item,
BOARDWIDTH/2,
50);
goo_canvas_text_new (boardRootItem,
_("Build the same tower in the empty area as the one you see on the right-hand side."),
BOARDWIDTH/2,
50,
-1,
GTK_ANCHOR_CENTER,
"font", gc_skin_font_board_medium,
"fill_color_rgba", gc_skin_color_text_button,
NULL);
}
/*----------------------------------------*/
/* Empty the solution */
for(i=0; i<(number_of_item_x+2); i++)
{
for(j=0; j<number_of_item_y; j++)
{
position[i][j] = g_malloc(sizeof(PieceItem));
position[i][j]->color = -1;
position[i][j]->i = i;
position[i][j]->j = j;
position[i][j]->on_top = FALSE;
}
}
/* Clear the used colors list */
for(i=0; i<NUMBER_OF_COLOR; i++)
used_colors[i] = FALSE;
/* Initialize a random goal and store the color index
in position[number_of_item_x] */
for(i=0; i<(number_of_item_y); i++)
{
guint color = (guint)g_random_int_range(0, NUMBER_OF_COLOR-1);
position[number_of_item_x+1][i]->color = color;
used_colors[color] = TRUE;
}
/* Randomly place the solution */
for (color_to_place=0; color_to_place<number_of_item_y; color_to_place++)
{
gboolean done;
do
{
done = FALSE;
i = (guint)g_random_int_range(0, number_of_item_x);
/* Restrict the goal to lowest items */
j = (guint)g_random_int_range(0, 2);
if(position[i][j]->color == -1)
{
done = TRUE;
position[i][j]->color = position[number_of_item_x+1][color_to_place]->color;
}
}
while(!done);
}
/* Initialize the left open positions */
for(i=0; i<(number_of_item_x); i++)
{
for(j=0; j<number_of_item_y-1; j++)
{
if(position[i][j]->color == -1)
{
/* Take only a color that is not part of the goal */
guint color = (guint)g_random_int_range(0, NUMBER_OF_COLOR-1);
while(used_colors[color])
{
color++;
if(color >= NUMBER_OF_COLOR)
color = 0;
}
position[i][j]->color = color;
}
}
}
//dump_solution();
/* Mark the top pieces */
for(i=0; i<(number_of_item_x); i++)
{
position[i][number_of_item_y-2]->on_top = TRUE;
}
/*----------------------------------------*/
/* Display it now */
item_width = BOARDWIDTH / (number_of_item_x + 2);
item_height = 30;
gap_x = item_width * 0.1;
gap_y = item_height * 0.25;
baseline = BOARDHEIGHT/2 + item_height * number_of_item_y/2;
number_of_item = 0;
for(i=0; i<(number_of_item_x+2); i++)
{
if(i == number_of_item_x+1)
{
/* Create the backgound for the target */
goo_canvas_rect_new (boardRootItem,
item_width * i + gap_x/2,
baseline - item_height * number_of_item_y - gap_y - 50,
item_width - gap_x,
item_height * number_of_item_y + gap_y*2 + 100,
"fill_color_rgba", 0x036ED8FF,
"stroke-color", "black",
"line-width", (double)1,
NULL);
}
else if (i == number_of_item_x)
{
/* Create the backgound for the empty area */
goo_canvas_rect_new (boardRootItem,
item_width * i + gap_x/2,
baseline - item_height * number_of_item_y - gap_y - 50,
item_width - gap_x,
item_height * number_of_item_y + gap_y*2 + 100,
"fill_color_rgba", 0x48AAF1FF,
"stroke-color", "black",
"line-width", (double)1,
NULL);
}
/* Create the vertical line */
w = 10;
goo_canvas_rect_new (boardRootItem,
item_width * i + item_width/2 - w,
baseline - item_height * number_of_item_y - gap_y,
w*2,
(item_height + gap_y/2 - 2) * number_of_item_y,
"fill_color_rgba", 0xFF1030FF,
"stroke-color", "black",
"line-width", (double)1,
NULL);
/* And the base line */
item = goo_canvas_path_new (boardRootItem,
"M 43,19 A 22,20 0 1 1 -1,19 L 20,19 z",
"fill_color_rgba", 0xFF1030FF,
"stroke-color", "black",
"line-width", 1.0,
NULL);
goo_canvas_item_translate(item,
item_width * i + item_width/2 - 20,
baseline - 25);
for(j=0; j<number_of_item_y; j++)
{
position[i][j]->x = item_width * i + gap_x;
position[i][j]->y = baseline - item_height * j - item_height + gap_y;
if(position[i][j]->color != -1)
{
char car[2];
GooCanvasItem *group = goo_canvas_group_new(boardRootItem,
NULL);
goo_canvas_item_translate(group,
position[i][j]->x,
position[i][j]->y);
position[i][j]->group = group;
item = goo_canvas_rect_new (group,
0,
0,
item_width - gap_x * 2,
item_height - gap_y,
"fill_color_rgba",
colorlist[position[i][j]->color],
"stroke-color", "black",
"line-width", (double)1,
NULL);
car[0] = symbollist[position[i][j]->color];
car[1] = '\0';
goo_canvas_text_new (group,
(char *)car,
20,
0,
-1,
GTK_ANCHOR_NORTH,
"font", "sans bold 14",
"fill-color", "white",
NULL);
if(i != number_of_item_x+1)
{
g_signal_connect(item, "button_press_event",
(GCallback)gc_drag_event,
position[i][j]);
g_signal_connect(item, "button_release_event",
(GCallback)gc_drag_event,
position[i][j]);
g_signal_connect(item, "enter_notify_event",
(GCallback) item_event,
position[i][j]);
g_signal_connect(item, "leave_notify_event",
(GCallback) item_event,
position[i][j]);
}
}
}
}
return NULL;
}