Learning_GTK4_tree/tests/animated-revealing.c

90 lines
2.6 KiB
C

/* -*- mode: C; c-basic-offset: 2; indent-tabs-mode: nil; -*- */
#include <gtk/gtk.h>
#include "frame-stats.h"
double reveal_time = 5;
static GOptionEntry options[] = {
{ "time", 't', 0, G_OPTION_ARG_DOUBLE, &reveal_time, "Reveal time", "SECONDS" },
{ NULL }
};
static void
toggle_reveal (GtkRevealer *revealer)
{
gtk_revealer_set_reveal_child (revealer, !gtk_revealer_get_reveal_child (revealer));
}
static void
quit_cb (GtkWidget *widget,
gpointer data)
{
gboolean *done = data;
*done = TRUE;
g_main_context_wakeup (NULL);
}
int
main(int argc, char **argv)
{
GtkWidget *window, *revealer, *grid, *widget;
GtkCssProvider *cssprovider;
GError *error = NULL;
guint x, y;
gboolean done = FALSE;
GOptionContext *context = g_option_context_new (NULL);
g_option_context_add_main_entries (context, options, NULL);
frame_stats_add_options (g_option_context_get_main_group (context));
if (!g_option_context_parse (context, &argc, &argv, &error))
{
g_printerr ("Option parsing failed: %s\n", error->message);
return 1;
}
gtk_init ();
window = gtk_window_new ();
g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
frame_stats_ensure (GTK_WINDOW (window));
revealer = gtk_revealer_new ();
gtk_widget_set_valign (revealer, GTK_ALIGN_START);
gtk_revealer_set_transition_type (GTK_REVEALER (revealer), GTK_REVEALER_TRANSITION_TYPE_SLIDE_DOWN);
gtk_revealer_set_transition_duration (GTK_REVEALER (revealer), reveal_time * 1000);
gtk_revealer_set_reveal_child (GTK_REVEALER (revealer), TRUE);
g_signal_connect_after (revealer, "map", G_CALLBACK (toggle_reveal), NULL);
g_signal_connect_after (revealer, "notify::child-revealed", G_CALLBACK (toggle_reveal), NULL);
gtk_window_set_child (GTK_WINDOW (window), revealer);
grid = gtk_grid_new ();
gtk_revealer_set_child (GTK_REVEALER (revealer), grid);
cssprovider = gtk_css_provider_new ();
gtk_css_provider_load_from_string (cssprovider, "* { padding: 2px; text-shadow: 5px 5px 2px grey; }");
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (cssprovider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
for (x = 0; x < 10; x++)
{
for (y = 0; y < 20; y++)
{
widget = gtk_label_new ("Hello World");
gtk_grid_attach (GTK_GRID (grid), widget, x, y, 1, 1);
}
}
gtk_window_present (GTK_WINDOW (window));
while (!done)
g_main_context_iteration (NULL, TRUE);
return 0;
}