+ guess_tile_position (i, x, y);
+ *y += (LETTER_SIZE + LETTER_PAD);
+}
+
+typedef struct _dict_paint_cursor
+{
+ cairo_t *cr;
+ int line_height;
+ int x;
+ int y;
+ int max_column_width;
+ int max_y;
+} dict_paint_cursor_t;
+
+static void
+dict_paint_action (void *closure, char *word, dict_entry_t *entry)
+{
+ dict_paint_cursor_t *cursor = closure;
+ cairo_t *cr = cursor->cr;
+ double new_x, new_y;
+
+ if (strlen (word) < 3)
+ return;
+
+ cairo_move_to (cr, cursor->x, cursor->y);
+ if (*entry & RACK_DICT_ENTRY_FOUND) {
+ cairo_show_text (cr, word);
+ } else {
+ int i, length = strlen (word);
+ for (i = 0; i < length; i++)
+ cairo_show_text (cr, "_");
+ }
+ cairo_get_current_point (cr, &new_x, &new_y);
+ if (new_x > cursor->max_column_width)
+ cursor->max_column_width = new_x;
+ cursor->y += cursor->line_height;
+ if (cursor->y > cursor->max_y) {
+ cursor->x = cursor->max_column_width + cursor->line_height / 2;
+ cursor->y = 0;
+ }
+}
+
+#define SOLUTION_FONT_SIZE 12
+#define SOLUTION_LINE_HEIGHT (1.5 * SOLUTION_FONT_SIZE)
+
+static void
+dict_paint (cairo_t *cr, void *closure, double width, double height)
+{
+ dict_t *dict = closure;
+ dict_paint_cursor_t cursor;
+
+ cairo_save (cr);
+ cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
+
+ cursor.cr = cr;
+
+ cairo_select_font_face (cr, "mono", 0, 0);
+ cairo_set_font_size (cr, SOLUTION_FONT_SIZE);
+ cursor.line_height = SOLUTION_LINE_HEIGHT;
+
+ cursor.x = 0;
+ cursor.y = 0;
+
+ cursor.max_column_width = 0;
+ cursor.max_y = height;
+
+ dict_for_each_by_length (dict,
+ dict_paint_action,
+ &cursor);
+
+ cairo_restore (cr);
+}
+
+static void
+tile_paint (cairo_t *cr, void *closure, double width, double height)
+{
+ tile_t *tile = closure;
+
+ cairo_pattern_t *gradient;
+ cairo_text_extents_t extents;
+ int rad = (int) MIN (width / 2, height / 2);
+ int cx = width / 2;
+ int cy = cx;
+ int tx, ty;
+ double spot_angle = M_PI / 4.0;
+ double spot_rad = rad / 2.0;
+ char string[2];
+
+ cairo_save (cr);
+
+ gradient = cairo_pattern_create_radial (cx - spot_rad * cos (spot_angle),
+ cy - spot_rad * sin (spot_angle),
+ 0.0,
+ cx - spot_rad * cos (spot_angle),
+ cy - spot_rad * sin (spot_angle),
+ rad + spot_rad);
+ cairo_pattern_add_color_stop_rgb (gradient, 0.0, 1.0, 1.0, 1.0);
+ cairo_pattern_add_color_stop_rgb (gradient, 1.0, 0.33, 0.33, 0.33);
+
+ cairo_set_source (cr, gradient);
+
+ cairo_arc (cr,
+ cx, cy,
+ rad, 0, 2 * M_PI);
+
+ cairo_fill (cr);
+
+ cairo_select_font_face (cr, "mono",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_BOLD);
+ cairo_set_font_size (cr, 1.8 * rad);
+
+ string[0] = tile->letter;
+ string[1] = '\0';
+ cairo_text_extents (cr, string, &extents);
+ tx = cx - extents.width / 2 - extents.x_bearing;
+ ty = cy - extents.height / 2 - extents.y_bearing;
+
+ cairo_set_source_rgb (cr, 0.7, 0.7, 0.7);
+ cairo_move_to (cr, tx + 1, ty + 1);
+ cairo_show_text (cr, string);
+
+ cairo_set_source_rgb (cr, 0.33, 0.33, 0.33);
+ cairo_move_to (cr, tx - 1, ty - 1);
+ cairo_show_text (cr, string);
+
+ cairo_set_source_rgb (cr, 0.2, 0.3, 0.8);
+ cairo_move_to (cr, tx, ty);
+ cairo_show_text (cr, string);
+
+ cairo_restore (cr);
+}
+
+static void
+tile_glide_to (tile_t *tile, int x, int y)
+{
+ goo_canvas_item_animate (tile->item, x, y,
+ 1.0, 0,
+ 500, 40,
+ GOO_CANVAS_ANIMATE_FREEZE);
+ tile->x = x;
+ tile->y = y;