Make rack-fancy select and display a rack of 7 random letters

[wordgame] / demo-item.c

diff --git a/demo-item.c b/demo-item.c
index 2eaf830c2235faee43ec53633f3c7d2262e90ec7..b38e4210dc3258b5f43875aff4fc71cd548f265d 100644 (file)
--- a/demo-item.c
+++ b/demo-item.c
@@ -4,6 +4,8 @@
  *
  * demo-item.c - a simple demo item.
  */
+#include <math.h>
+
 #include "goocanvas.h"
 #include "demo-item.h"
 
@@ -31,6 +33,7 @@ goo_demo_item_new (GooCanvasItem      *parent,
                   gdouble             y,
                   gdouble             width,
                   gdouble             height,
+                  char                letter,
                   ...)
 {
     GooCanvasItem *item;
@@ -45,8 +48,9 @@ goo_demo_item_new (GooCanvasItem      *parent,
     demo_item->y = y;
     demo_item->width = width;
     demo_item->height = height;
+    demo_item->letter = letter;
 
-    va_start (var_args, height);
+    va_start (var_args, letter);
     first_property = va_arg (var_args, char*);
     if (first_property)
        g_object_set_valist ((GObject*) item, first_property, var_args);
@@ -88,16 +92,52 @@ goo_demo_item_paint (GooCanvasItemSimple *simple,
                     cairo_t             *cr,
                     GooCanvasBounds     *bounds)
 {
-    GooDemoItem *demo_item = (GooDemoItem*) simple;
+    GooDemoItem *item = (GooDemoItem*) simple;
+    cairo_pattern_t *gradient;
+    cairo_text_extents_t extents;
+    int rad = (int) MIN (item->width / 2, item->height / 2);
+    int cx = item->x + item->width / 2;
+    int cy = item->y + item->height / 2;
+    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_move_to (cr, demo_item->x, demo_item->y);
-    cairo_line_to (cr, demo_item->x, demo_item->y + demo_item->height);
-    cairo_line_to (cr, demo_item->x + demo_item->width,
-                  demo_item->y + demo_item->height);
-    cairo_line_to (cr, demo_item->x + demo_item->width, demo_item->y);
-    cairo_close_path (cr);
-    goo_canvas_style_set_fill_options (simple->simple_data->style, cr);
     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] = item->letter;
+    string[1] = '\0';
+    cairo_text_extents (cr, string, &extents);
+    cairo_move_to (cr,
+                  cx - extents.width / 2 - extents.x_bearing,
+                  cy - extents.height / 2 - extents.y_bearing);
+
+    cairo_set_source_rgb (cr, 0.2, 0.3, 0.8);
+    cairo_show_text (cr, string);
+                  
+
+    cairo_restore (cr);
 }
 
 /* Hit detection. This should check if the given coordinate (in the item's