[gtk/matthiasc/for-master] gtk-demo: Use typographic style classes

[Matthias Clasen <matthiasc src gnome org>]

commit 14cbd13ef2c7982dcc41c703506298e4d0b8013f
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Nov 2 08:38:20 2020 -0500

    gtk-demo: Use typographic style classes
    
    We don't need to hardcode <u> in markup anymore.
    Use the heading style class instead.

 demos/gtk-demo/drawingarea.c | 10 ++++------
 demos/gtk-demo/images.c      | 30 ++++++++++++------------------
 2 files changed, 16 insertions(+), 24 deletions(-)
---
diff --git a/demos/gtk-demo/drawingarea.c b/demos/gtk-demo/drawingarea.c
index 14b87f64d3..39254c67f5 100644
--- a/demos/gtk-demo/drawingarea.c
+++ b/demos/gtk-demo/drawingarea.c
@@ -325,9 +325,8 @@ do_drawingarea (GtkWidget *do_widget)
       /*
        * Create the groups area
        */
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Knockout groups</u>");
+      label = gtk_label_new ("Knockout groups");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -344,9 +343,8 @@ do_drawingarea (GtkWidget *do_widget)
        * Create the scribble area
        */
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Scribble area</u>");
+      label = gtk_label_new ("Scribble area");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
diff --git a/demos/gtk-demo/images.c b/demos/gtk-demo/images.c
index 22177a7f5c..c8b8ed8fd3 100644
--- a/demos/gtk-demo/images.c
+++ b/demos/gtk-demo/images.c
@@ -346,9 +346,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Image loaded from a file</u>");
+      label = gtk_label_new ("Image loaded from a file");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -364,9 +363,8 @@ do_images (GtkWidget *do_widget)
 
       /* Animation */
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Animation loaded from a file</u>");
+      label = gtk_label_new ("Animation loaded from a file");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -380,9 +378,8 @@ do_images (GtkWidget *do_widget)
 
       /* Symbolic icon */
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Symbolic themed icon</u>");
+      label = gtk_label_new ("Symbolic themed icon");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -401,9 +398,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Progressive image loading</u>");
+      label = gtk_label_new ("Progressive image loading");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -424,9 +420,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Displaying video</u>");
+      label = gtk_label_new ("Displaying video");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -442,9 +437,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>GtkWidgetPaintable</u>");
+      label = gtk_label_new ("GtkWidgetPaintable");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       paintable = gtk_widget_paintable_new (do_widget);