Commit 5d27915a authored by Timm Bäder's avatar Timm Bäder 👎

demo: Add widgetbowl demo

Backported from gtk4.
parent cac2845b
Pipeline #5956 failed with stage
in 46 seconds
......@@ -28,6 +28,7 @@ demos_base = \
expander.c \
filtermodel.c \
fishbowl.c \
widgetbowl.c \
foreigndrawing.c \
gestures.c \
glarea.c \
......
......@@ -156,6 +156,7 @@
<file>expander.c</file>
<file>filtermodel.c</file>
<file>fishbowl.c</file>
<file>widgetbowl.c</file>
<file>flowbox.c</file>
<file>foreigndrawing.c</file>
<file>font_features.c</file>
......
/* Benchmark/Widgetbowl
*
* This is a version of the Fishbowl demo that instead shows different
* kinds of widgets, which is useful for comparing the rendering performance
* of theme specifics.
*/
#include <gtk/gtk.h>
#include "gtkfishbowl.h"
const char *const css =
".blurred-button {"
" box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
"}"
"";
GtkWidget *fishbowl;
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_line_wrap (GTK_LABEL (w), TRUE);
gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
return w;
}
static const struct {
const char *name;
GtkWidget * (*create_func) (void);
} widget_types[] = {
{ "Button", create_button },
{ "Blurbutton", create_blurred_button },
{ "Fontbutton", create_font_button },
{ "Levelbar" , create_level_bar },
{ "Label" , create_label },
{ "Spinner" , create_spinner },
{ "Spinbutton", create_spinbutton },
};
static int selected_widget_type = -1;
static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);
#define N_STATS 5
#define STATS_UPDATE_TIME G_USEC_PER_SEC
static void
set_widget_type (GtkWidget *headerbar,
int widget_type_index)
{
if (widget_type_index == selected_widget_type)
return;
/* Remove everything */
gtk_fishbowl_set_count (GTK_FISHBOWL (fishbowl), 0);
selected_widget_type = widget_type_index;
gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
widget_types[selected_widget_type].name);
}
typedef struct _Stats Stats;
struct _Stats {
gint64 last_stats;
gint64 last_frame;
gint last_suggestion;
guint frame_counter_max;
guint stats_index;
guint frame_counter[N_STATS];
guint item_counter[N_STATS];
};
static Stats *
get_stats (GtkWidget *widget)
{
static GQuark stats_quark = 0;
Stats *stats;
if (G_UNLIKELY (stats_quark == 0))
stats_quark = g_quark_from_static_string ("stats");
stats = g_object_get_qdata (G_OBJECT (widget), stats_quark);
if (stats == NULL)
{
stats = g_new0 (Stats, 1);
g_object_set_qdata_full (G_OBJECT (widget), stats_quark, stats, g_free);
stats->last_frame = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
stats->last_stats = stats->last_frame;
}
return stats;
}
static void
do_stats (GtkWidget *widget,
GtkWidget *info_label,
gint *suggested_change)
{
Stats *stats;
gint64 frame_time;
stats = get_stats (widget);
frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
if (stats->last_stats + STATS_UPDATE_TIME < frame_time)
{
char *new_label;
guint i, n_frames;
n_frames = 0;
for (i = 0; i < N_STATS; i++)
{
n_frames += stats->frame_counter[i];
}
new_label = g_strdup_printf ("widgets - %.1f fps",
(double) G_USEC_PER_SEC * n_frames
/ (N_STATS * STATS_UPDATE_TIME));
gtk_label_set_label (GTK_LABEL (info_label), new_label);
g_free (new_label);
if (stats->frame_counter[stats->stats_index] >= 19 * stats->frame_counter_max / 20)
{
if (stats->last_suggestion > 0)
stats->last_suggestion *= 2;
else
stats->last_suggestion = 1;
}
else
{
if (stats->last_suggestion < 0)
stats->last_suggestion--;
else
stats->last_suggestion = -1;
stats->last_suggestion = MAX (stats->last_suggestion, 1 - (int) stats->item_counter[stats->stats_index]);
}
stats->stats_index = (stats->stats_index + 1) % N_STATS;
stats->frame_counter[stats->stats_index] = 0;
stats->item_counter[stats->stats_index] = stats->item_counter[(stats->stats_index + N_STATS - 1) % N_STATS];
stats->last_stats = frame_time;
if (suggested_change)
*suggested_change = stats->last_suggestion;
else
stats->last_suggestion = 0;
}
else
{
if (suggested_change)
*suggested_change = 0;
}
stats->last_frame = frame_time;
stats->frame_counter[stats->stats_index]++;
stats->frame_counter_max = MAX (stats->frame_counter_max, stats->frame_counter[stats->stats_index]);
}
static void
stats_update (GtkWidget *widget)
{
Stats *stats;
stats = get_stats (widget);
stats->item_counter[stats->stats_index] = gtk_fishbowl_get_count (GTK_FISHBOWL (widget));
}
static gboolean
move_fish (GtkWidget *bowl,
GdkFrameClock *frame_clock,
gpointer info_label)
{
gint suggested_change = 0;
do_stats (bowl, info_label, &suggested_change);
if (suggested_change > 0)
{
int i;
for (i = 0; i < suggested_change; i ++)
{
GtkWidget *new_widget = widget_types[selected_widget_type].create_func ();
gtk_widget_show (new_widget);
gtk_container_add (GTK_CONTAINER (fishbowl), new_widget);
}
}
else if (suggested_change < 0)
{
gtk_fishbowl_set_count (GTK_FISHBOWL (fishbowl),
gtk_fishbowl_get_count (GTK_FISHBOWL (fishbowl)) + suggested_change);
}
stats_update (bowl);
return G_SOURCE_CONTINUE;
}
static void
next_button_clicked_cb (GtkButton *source,
gpointer user_data)
{
GtkWidget *headerbar = 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 (headerbar, new_index);
}
static void
prev_button_clicked_cb (GtkButton *source,
gpointer user_data)
{
GtkWidget *headerbar = 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 (headerbar, new_index);
}
GtkWidget *
do_widgetbowl (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, NULL);
gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
GTK_STYLE_PROVIDER (provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
if (!window)
{
GtkWidget *info_label;
GtkWidget *count_label;
GtkWidget *titlebar;
GtkWidget *title_box;
GtkWidget *left_box;
GtkWidget *next_button;
GtkWidget *prev_button;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
titlebar = gtk_header_bar_new ();
gtk_header_bar_set_show_close_button (GTK_HEADER_BAR (titlebar), TRUE);
info_label = gtk_label_new ("widget - 00.0 fps");
count_label = gtk_label_new ("0");
fishbowl = gtk_fishbowl_new ();
title_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
prev_button = gtk_button_new_from_icon_name ("pan-start-symbolic", GTK_ICON_SIZE_BUTTON);
next_button = gtk_button_new_from_icon_name ("pan-end-symbolic", GTK_ICON_SIZE_BUTTON);
left_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
g_object_bind_property (fishbowl, "count", count_label, "label", 0);
g_signal_connect (next_button, "clicked", G_CALLBACK (next_button_clicked_cb), titlebar);
g_signal_connect (prev_button, "clicked", G_CALLBACK (prev_button_clicked_cb), titlebar);
gtk_fishbowl_set_animating (GTK_FISHBOWL (fishbowl), TRUE);
gtk_widget_set_hexpand (title_box, TRUE);
gtk_widget_set_halign (title_box, GTK_ALIGN_END);
gtk_window_set_titlebar (GTK_WINDOW (window), titlebar);
gtk_container_add (GTK_CONTAINER (title_box), count_label);
gtk_container_add (GTK_CONTAINER (title_box), info_label);
gtk_header_bar_pack_end (GTK_HEADER_BAR (titlebar), title_box);
gtk_container_add (GTK_CONTAINER (window), fishbowl);
gtk_style_context_add_class (gtk_widget_get_style_context (left_box), "linked");
gtk_container_add (GTK_CONTAINER (left_box), prev_button);
gtk_container_add (GTK_CONTAINER (left_box), next_button);
gtk_header_bar_pack_start (GTK_HEADER_BAR (titlebar), left_box);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
gtk_widget_realize (window);
gtk_widget_add_tick_callback (fishbowl, move_fish, info_label, NULL);
set_widget_type (titlebar, 0);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show_all (window);
else
gtk_widget_destroy (window);
return window;
}
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