From 4e817452368c0ca9edb0784fef8d7155c634652f Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 12 Apr 2017 13:09:44 +0200
Subject: info rendering

---
 drmtest.c |  6 +++---
 gtktest.c |  2 +-
 render.c  | 40 ++++++++++++++++++++++++++--------------
 render.h  |  3 ++-
 4 files changed, 32 insertions(+), 19 deletions(-)

diff --git a/drmtest.c b/drmtest.c
index 7fd080e..76dc2b1 100644
--- a/drmtest.c
+++ b/drmtest.c
@@ -172,10 +172,10 @@ static void drm_draw(const char *text)
     cairo_t *cr;
 
     drm_conn_name(conn, name, sizeof(name));
-    snprintf(info, sizeof(info), "%s: %dx%d, %s",
-             name, mode->hdisplay, mode->vdisplay, text);
+    snprintf(info, sizeof(info), "drmtest: %dx%d at %s",
+             mode->hdisplay, mode->vdisplay, name);
     cr = cairo_create(cs);
-    render_test(cr, mode->hdisplay, mode->vdisplay, info);
+    render_test(cr, mode->hdisplay, mode->vdisplay, info, text);
     cairo_destroy(cr);
 }
 
diff --git a/gtktest.c b/gtktest.c
index 8deb52b..43cb2dc 100644
--- a/gtktest.c
+++ b/gtktest.c
@@ -13,7 +13,7 @@ static gboolean on_draw_event(GtkWidget *widget, cairo_t *cr,
     height = gtk_widget_get_allocated_height(widget);
     snprintf(info, sizeof(info), "gtktest: %dx%d",
              width, height);
-    render_test(cr, width, height, info);
+    render_test(cr, width, height, info, NULL);
     return FALSE;
 }
 
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);
 }
 
 
diff --git a/render.h b/render.h
index d6aa9ba..2a15568 100644
--- a/render.h
+++ b/render.h
@@ -1 +1,2 @@
-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);
-- 
cgit