[gtk+] tests: Add testgridbaseline

[Timm Bäder <baedert src gnome org>]

commit ac7e1081b5a9bdbf105462127ac6c3ee12698fd4
Author: Timm Bäder <mail baedert org>
Date:   Wed Oct 11 08:05:52 2017 +0200

    tests: Add testgridbaseline
    
    Which shows that GtkGrid currently computes baselines for all rows even
    though not all of them might request a baseline.

 tests/meson.build        |    1 +
 tests/testgridbaseline.c |   58 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+), 0 deletions(-)
---
diff --git a/tests/meson.build b/tests/meson.build
index ac0f3b6..b4ae0bb 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -129,6 +129,7 @@ gtk_tests = [
   ['testgaction'],
   ['testwidgetfocus'],
   ['testcenterbox'],
+  ['testgridbaseline']
 ]
 
 if os_linux
diff --git a/tests/testgridbaseline.c b/tests/testgridbaseline.c
new file mode 100644
index 0000000..8c097bf
--- /dev/null
+++ b/tests/testgridbaseline.c
@@ -0,0 +1,58 @@
+#include <gtk/gtk.h>
+
+
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *window;
+  GtkWidget *grid;
+  GtkWidget *label1;
+  GtkWidget *label2;
+  GtkWidget *label3;
+  GtkWidget *label4;
+
+  g_setenv ("GTK_DEBUG", "baselines,layout", TRUE);
+  gtk_init ();
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  grid = gtk_grid_new ();
+  gtk_grid_set_row_spacing (GTK_GRID (grid), 30);
+  gtk_grid_set_column_spacing (GTK_GRID (grid), 30);
+  gtk_container_add (GTK_CONTAINER (window), grid);
+
+  label1 = gtk_label_new ("Some Text");
+  label2 = gtk_label_new ("QQQQQQQQQ");
+  label3 = gtk_label_new ("Some Text");
+  label4 = gtk_label_new ("Some Text");
+
+  g_message ("label1: %p", label1);
+  g_message ("label2: %p", label2);
+  g_message ("label3: %p", label3);
+  g_message ("label4: %p", label4);
+
+  gtk_widget_set_valign (label1, GTK_ALIGN_BASELINE);
+  gtk_widget_set_valign (label2, GTK_ALIGN_BASELINE);
+  gtk_widget_set_valign (label3, GTK_ALIGN_START);
+  gtk_widget_set_valign (label4, GTK_ALIGN_START);
+
+  gtk_widget_set_margin_top (label1, 12);
+  gtk_widget_set_margin_bottom (label2, 18);
+  gtk_widget_set_margin_top (label3, 30);
+
+
+  /*
+   * Since none of the widgets in the second row request baseline alignment,
+   * GtkGrid should not compute or apply a baseline for those widgets.
+   */
+
+
+  gtk_grid_attach (GTK_GRID (grid), label1, 0, 0, 1, 1);
+  gtk_grid_attach (GTK_GRID (grid), label2, 1, 0, 1, 1);
+  gtk_grid_attach (GTK_GRID (grid), label3, 0, 1, 1, 1);
+  gtk_grid_attach (GTK_GRID (grid), label4, 1, 1, 1, 1);
+
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}