gtk2/demos/gtk-demo/fishbowl.c
Benjamin Otte a15fb95c46 gtk-demo: Use normal way to lookup up symbols
We're a normal application, so we can use the normal way to hook up code
into builder files, which is using dlsym() for the function pointers.

There's no need to to extra work exporting static symbols.
2019-12-03 18:12:25 +01:00

313 lines
7.4 KiB
C

/* Benchmark/Fishbowl
*
* This demo models the fishbowl demos seen on the web in a GTK way.
* It's also a neat little tool to see how fast your computer (or
* your GTK version) is.
*/
#include <gtk/gtk.h>
#include "gtkfishbowl.h"
#include "gtkgears.h"
const char *const css =
".blurred-button {"
" box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
"}"
"";
char **icon_names = NULL;
gsize n_icon_names = 0;
static void
init_icon_names (GtkIconTheme *theme)
{
GPtrArray *icons;
GList *l, *icon_list;
if (icon_names)
return;
icon_list = gtk_icon_theme_list_icons (theme, NULL);
icons = g_ptr_array_new ();
for (l = icon_list; l; l = l->next)
{
if (g_str_has_suffix (l->data, "symbolic"))
continue;
g_ptr_array_add (icons, g_strdup (l->data));
}
n_icon_names = icons->len;
g_ptr_array_add (icons, NULL); /* NULL-terminate the array */
icon_names = (char **) g_ptr_array_free (icons, FALSE);
/* don't free strings, we assigned them to the array */
g_list_free_full (icon_list, g_free);
}
static const char *
get_random_icon_name (GtkIconTheme *theme)
{
init_icon_names (theme);
return icon_names[g_random_int_range(0, n_icon_names)];
}
GtkWidget *
create_icon (void)
{
GtkWidget *image;
image = gtk_image_new_from_icon_name (get_random_icon_name (gtk_icon_theme_get_default ()));
gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
return image;
}
static GtkWidget *
create_button (void)
{
return gtk_button_new_with_label ("Button");
}
static GtkWidget *
create_blurred_button (void)
{
GtkWidget *w = gtk_button_new ();
gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
return w;
}
static GtkWidget *
create_font_button (void)
{
return gtk_font_button_new ();
}
static GtkWidget *
create_level_bar (void)
{
GtkWidget *w = gtk_level_bar_new_for_interval (0, 100);
gtk_level_bar_set_value (GTK_LEVEL_BAR (w), 50);
/* Force them to be a bit larger */
gtk_widget_set_size_request (w, 200, -1);
return w;
}
static GtkWidget *
create_spinner (void)
{
GtkWidget *w = gtk_spinner_new ();
gtk_spinner_start (GTK_SPINNER (w));
return w;
}
static GtkWidget *
create_spinbutton (void)
{
GtkWidget *w = gtk_spin_button_new_with_range (0, 10, 1);
return w;
}
static GtkWidget *
create_label (void)
{
GtkWidget *w = gtk_label_new ("pLorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.");
gtk_label_set_wrap (GTK_LABEL (w), TRUE);
gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
return w;
}
static GtkWidget *
create_video (void)
{
GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
GtkWidget *w = gtk_picture_new_for_paintable (GDK_PAINTABLE (stream));
gtk_widget_set_size_request (w, 64, 64);
gtk_media_stream_set_loop (stream, TRUE);
gtk_media_stream_play (stream);
g_object_unref (stream);
return w;
}
static GtkWidget *
create_gears (void)
{
GtkWidget *w = gtk_gears_new ();
gtk_widget_set_size_request (w, 100, 100);
return w;
}
static GtkWidget *
create_switch (void)
{
GtkWidget *w = gtk_switch_new ();
gtk_switch_set_state (GTK_SWITCH (w), TRUE);
return w;
}
static void
mapped (GtkWidget *w)
{
gtk_menu_button_popup (GTK_MENU_BUTTON (w));
}
static GtkWidget *
create_menu_button (void)
{
GtkWidget *w = gtk_menu_button_new ();
GtkWidget *popover = gtk_popover_new (NULL);
gtk_container_add (GTK_CONTAINER (popover), gtk_button_new_with_label ("Hey!"));
gtk_popover_set_autohide (GTK_POPOVER (popover), FALSE);
gtk_menu_button_set_popover (GTK_MENU_BUTTON (w), popover);
g_signal_connect (w, "map", G_CALLBACK (mapped), NULL);
return w;
}
static const struct {
const char *name;
GtkWidget * (*create_func) (void);
} widget_types[] = {
{ "Icon", create_icon },
{ "Button", create_button },
{ "Blurbutton", create_blurred_button },
{ "Fontbutton", create_font_button },
{ "Levelbar", create_level_bar },
{ "Label", create_label },
{ "Spinner", create_spinner },
{ "Spinbutton", create_spinbutton },
{ "Video", create_video },
{ "Gears", create_gears },
{ "Switch", create_switch },
{ "Menubutton", create_menu_button },
};
static int selected_widget_type = -1;
static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);
static void
set_widget_type (GtkFishbowl *fishbowl,
int widget_type_index)
{
GtkWidget *window, *headerbar;
if (widget_type_index == selected_widget_type)
return;
selected_widget_type = widget_type_index;
gtk_fishbowl_set_creation_func (fishbowl,
widget_types[selected_widget_type].create_func);
window = GTK_WIDGET (gtk_widget_get_root (GTK_WIDGET (fishbowl)));
headerbar = gtk_window_get_titlebar (GTK_WINDOW (window));
gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
widget_types[selected_widget_type].name);
}
void
fishbowl_next_button_clicked_cb (GtkButton *source,
gpointer user_data)
{
GtkFishbowl *fishbowl = user_data;
int new_index;
if (selected_widget_type + 1 >= N_WIDGET_TYPES)
new_index = 0;
else
new_index = selected_widget_type + 1;
set_widget_type (fishbowl, new_index);
}
void
fishbowl_prev_button_clicked_cb (GtkButton *source,
gpointer user_data)
{
GtkFishbowl *fishbowl = user_data;
int new_index;
if (selected_widget_type - 1 < 0)
new_index = N_WIDGET_TYPES - 1;
else
new_index = selected_widget_type - 1;
set_widget_type (fishbowl, new_index);
}
void
fishbowl_changes_toggled_cb (GtkToggleButton *button,
gpointer user_data)
{
if (gtk_toggle_button_get_active (button))
gtk_button_set_icon_name (GTK_BUTTON (button), "changes-prevent");
else
gtk_button_set_icon_name (GTK_BUTTON (button), "changes-allow");
}
GtkWidget *
do_fishbowl (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
static GtkCssProvider *provider = NULL;
if (provider == NULL)
{
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider, css, -1);
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
if (!window)
{
GtkBuilder *builder;
GtkWidget *bowl;
g_type_ensure (GTK_TYPE_FISHBOWL);
builder = gtk_builder_new_from_resource ("/fishbowl/fishbowl.ui");
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
bowl = GTK_WIDGET (gtk_builder_get_object (builder, "bowl"));
selected_widget_type = -1;
set_widget_type (GTK_FISHBOWL (bowl), 0);
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
gtk_widget_realize (window);
g_object_unref (builder);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}