info rendering

1 files changed, 26 insertions, 14 deletions

diff --git a/render.c b/render.c
index af40688..9558d9e 100644
--- a/render.c
+++ b/render.c
@@ -1,3 +1,4 @@
+#include <stddef.h>
 #include <cairo.h>
 
 #include "render.h"
@@ -5,7 +6,8 @@
 static int pad = 15;
 
 static void render_color_bar(cairo_t *cr, int x, int y, int w, int h,
-                             double r, double g, double b, const char *name)
+                             double r, double g, double b,
+                             const char *l1, const char *l2)
 {
     cairo_font_extents_t ext;
     cairo_pattern_t *gr;
@@ -18,17 +20,27 @@ static void render_color_bar(cairo_t *cr, int x, int y, int w, int h,
     cairo_fill (cr);
     cairo_pattern_destroy(gr);
 
-    cairo_set_source_rgb(cr, r, g, b);
     cairo_select_font_face(cr, "mono",
                            CAIRO_FONT_SLANT_NORMAL,
                            CAIRO_FONT_WEIGHT_NORMAL);
-    cairo_set_font_size(cr, h - 2*pad);
-    cairo_font_extents (cr, &ext);
-    cairo_move_to(cr, x + pad, y + pad + ext.ascent);
-    cairo_show_text(cr, name);
+    if (l2) {
+        cairo_set_source_rgb(cr, 1, 1, 1);
+        cairo_set_font_size(cr, h/2 - pad);
+        cairo_font_extents (cr, &ext);
+        cairo_move_to(cr, x + pad, y + pad + ext.ascent);
+        cairo_show_text(cr, l1);
+        cairo_move_to(cr, x + pad, y + pad + ext.ascent + ext.height);
+        cairo_show_text(cr, l2);
+    } else {
+        cairo_set_source_rgb(cr, r, g, b);
+        cairo_set_font_size(cr, h - 2*pad);
+        cairo_font_extents (cr, &ext);
+        cairo_move_to(cr, x + pad, y + pad + ext.ascent);
+        cairo_show_text(cr, l1);
+    }
 }
 
-void render_test(cairo_t *cr, int width, int height, const char *info)
+void render_test(cairo_t *cr, int width, int height, const char *l1, const char *l2)
 {
     int bar = 120;
 
@@ -46,13 +58,13 @@ void render_test(cairo_t *cr, int width, int height, const char *info)
     cairo_stroke (cr);
 
     render_color_bar(cr, pad, bar * 0 + pad, width - 2*pad, bar,
-                     0.8, 0.8, 0.8, info);
-    render_color_bar(cr, pad, bar * 1 + pad, width - 2*pad, bar, 1, 0, 0, "red");
-    render_color_bar(cr, pad, bar * 2 + pad, width - 2*pad, bar, 1, 1, 0, "yellow");
-    render_color_bar(cr, pad, bar * 3 + pad, width - 2*pad, bar, 0, 1, 0, "green");
-    render_color_bar(cr, pad, bar * 4 + pad, width - 2*pad, bar, 0, 1, 1, "cyan");
-    render_color_bar(cr, pad, bar * 5 + pad, width - 2*pad, bar, 0, 0, 1, "blue");
-    render_color_bar(cr, pad, bar * 6 + pad, width - 2*pad, bar, 1, 0, 1, "magenta");
+                     0.6, 0.6, 0.6, l1, l2);
+    render_color_bar(cr, pad, bar * 1 + pad, width - 2*pad, bar, 1, 0, 0, "red", NULL);
+    render_color_bar(cr, pad, bar * 2 + pad, width - 2*pad, bar, 1, 1, 0, "yellow", NULL);
+    render_color_bar(cr, pad, bar * 3 + pad, width - 2*pad, bar, 0, 1, 0, "green", NULL);
+    render_color_bar(cr, pad, bar * 4 + pad, width - 2*pad, bar, 0, 1, 1, "cyan", NULL);
+    render_color_bar(cr, pad, bar * 5 + pad, width - 2*pad, bar, 0, 0, 1, "blue", NULL);
+    render_color_bar(cr, pad, bar * 6 + pad, width - 2*pad, bar, 1, 0, 1, "magenta", NULL);
 }