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gtk-demo: Add a test for scrolling with Emoji

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Make a text with lots of Emoji and text. This
is exercising the GL renderers switching between
different shaders for color and plain glyphs.
This commit is contained in:
Matthias Clasen 2021-03-12 01:44:05 -05:00
parent 6a30c6b01c
commit 0ee6868b7f
1 changed files with 44 additions and 4 deletions
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48
demos/gtk-demo/iconscroll.c
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@ -13,7 +13,7 @@ static GtkWidget *window = NULL;
static GtkWidget *scrolledwindow;
static int selected;
#define N_WIDGET_TYPES 7
#define N_WIDGET_TYPES 8
static int hincrement = 5;
@ -110,6 +110,41 @@ populate_text (gboolean highlight)
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), textview);
}
static void
populate_emoji_text (void)
{
GtkWidget *textview;
GtkTextBuffer *buffer;
GString *s;
s = g_string_sized_new (1000 * 30 * 4);
for (int i = 0; i < 1000; i++)
{
if (i % 2)
g_string_append (s, "x");
for (int j = 0; j < 30; j++)
g_string_append (s, "💓x");
g_string_append (s, "\n");
}
buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (buffer, s->str, s->len);
g_string_free (s, TRUE);
textview = gtk_text_view_new ();
gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
hincrement = 0;
vincrement = 5;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwindow),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), textview);
}
static void
populate_image (void)
{
@ -224,21 +259,26 @@ set_widget_type (int type)
break;
case 3:
gtk_window_set_title (GTK_WINDOW (window), "Scrolling text with Emoji");
populate_emoji_text ();
break;
case 4:
gtk_window_set_title (GTK_WINDOW (window), "Scrolling a big image");
populate_image ();
break;
case 4:
case 5:
gtk_window_set_title (GTK_WINDOW (window), "Scrolling a list");
populate_list ();
break;
case 5:
case 6:
gtk_window_set_title (GTK_WINDOW (window), "Scrolling a columned list");
populate_list2 ();
break;
case 6:
case 7:
gtk_window_set_title (GTK_WINDOW (window), "Scrolling a grid");
populate_grid ();
break;