[gtk+/grid-widget] Add a GtkGrid testcase involving scrolling

[Matthias Clasen <matthiasc src gnome org>]

commit b017a3337890f942def51599d165e9193916d1a8
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Oct 10 14:41:11 2010 -0400

    Add a GtkGrid testcase involving scrolling

 tests/testgrid.c |   59 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 58 insertions(+), 1 deletions(-)
---
diff --git a/tests/testgrid.c b/tests/testgrid.c
index 0d0b8f3..eba15f2 100644
--- a/tests/testgrid.c
+++ b/tests/testgrid.c
@@ -1,13 +1,14 @@
 #include <gtk/gtk.h>
 
 static GtkWidget *
-test_widget (const gchar *label, const gchar *color)
+oriented_test_widget (const gchar *label, const gchar *color, gdouble angle)
 {
   GtkWidget *box;
   GtkWidget *widget;
   GdkColor c;
 
   widget = gtk_label_new (label);
+  gtk_label_set_angle (GTK_LABEL (widget), angle);
   box = gtk_event_box_new ();
   gdk_color_parse (color, &c);
   gtk_widget_modify_bg (box, GTK_STATE_NORMAL, &c);
@@ -16,6 +17,12 @@ test_widget (const gchar *label, const gchar *color)
   return box;
 }
 
+static GtkWidget *
+test_widget (const gchar *label, const gchar *color)
+{
+  return oriented_test_widget (label, color, 0.0);
+}
+
 static GtkOrientation o;
 
 static gboolean
@@ -190,6 +197,55 @@ empty_line (void)
   gtk_widget_show_all (window);
 }
 
+static void
+scrolling (void)
+{
+  GtkWidget *window;
+  GtkWidget *sw;
+  GtkWidget *viewport;
+  GtkWidget *grid;
+  GtkWidget *child;
+  gint i;
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  viewport = gtk_viewport_new (NULL, NULL);
+  grid = gtk_grid_new ();
+
+  gtk_container_add (GTK_CONTAINER (window), sw);
+  gtk_container_add (GTK_CONTAINER (sw), viewport);
+  gtk_container_add (GTK_CONTAINER (viewport), grid);
+
+  child = oriented_test_widget ("#800080", "#800080", -45.0);
+  gtk_grid_attach (GTK_GRID (grid), child, 0, 0, 1, 1);
+  gtk_container_child_set (GTK_CONTAINER (grid), child,
+                           "hexpand", TRUE,
+                           "vexpand", TRUE,
+                           NULL);
+
+  for (i = 1; i < 16; i++)
+    {
+      gchar *color;
+      color = g_strdup_printf ("#%02x00%02x", 128 + 8*i, 128 - 8*i);
+      child = test_widget (color, color);
+      gtk_grid_attach (GTK_GRID (grid), child, 0, i, i + 1, 1);
+      gtk_container_child_set (GTK_CONTAINER (grid), child, "hexpand", TRUE, NULL);
+      g_free (color);
+    }
+
+  for (i = 1; i < 16; i++)
+    {
+      gchar *color;
+      color = g_strdup_printf ("#%02x00%02x", 128 - 8*i, 128 + 8*i);
+      child = oriented_test_widget (color, color, -90.0);
+      gtk_grid_attach (GTK_GRID (grid), child, i, 0, 1, i);
+      gtk_container_child_set (GTK_CONTAINER (grid), child, "vexpand", TRUE, NULL);
+      g_free (color);
+    }
+
+  gtk_widget_show_all (window);
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -199,6 +255,7 @@ main (int argc, char *argv[])
   text_grid ();
   box_comparison ();
   empty_line ();
+  scrolling ();
 
   gtk_main ();