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demo: Add widgetbowl demo
Backported from gtk4.
This commit is contained in:
Timm Bäder
parent
cac2845bd6
commit
5d27915aa4
@ -28,6 +28,7 @@ demos_base = \
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expander.c \
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filtermodel.c \
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fishbowl.c \
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widgetbowl.c \
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foreigndrawing.c \
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gestures.c \
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glarea.c \
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@ -156,6 +156,7 @@
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<file>expander.c</file>
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<file>filtermodel.c</file>
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<file>fishbowl.c</file>
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<file>widgetbowl.c</file>
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<file>flowbox.c</file>
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<file>foreigndrawing.c</file>
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<file>font_features.c</file>
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365
demos/gtk-demo/widgetbowl.c
Normal file
365
demos/gtk-demo/widgetbowl.c
Normal file
@ -0,0 +1,365 @@
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/* Benchmark/Widgetbowl
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*
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* This is a version of the Fishbowl demo that instead shows different
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* kinds of widgets, which is useful for comparing the rendering performance
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* of theme specifics.
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*/
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#include <gtk/gtk.h>
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#include "gtkfishbowl.h"
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const char *const css =
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".blurred-button {"
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" box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
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"}"
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"";
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GtkWidget *fishbowl;
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static GtkWidget *
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create_button (void)
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{
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return gtk_button_new_with_label ("Button");
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}
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static GtkWidget *
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create_blurred_button (void)
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{
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GtkWidget *w = gtk_button_new ();
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gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
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return w;
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}
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static GtkWidget *
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create_font_button (void)
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{
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return gtk_font_button_new ();
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}
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static GtkWidget *
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create_level_bar (void)
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{
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GtkWidget *w = gtk_level_bar_new_for_interval (0, 100);
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gtk_level_bar_set_value (GTK_LEVEL_BAR (w), 50);
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/* Force them to be a bit larger */
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gtk_widget_set_size_request (w, 200, -1);
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return w;
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}
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static GtkWidget *
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create_spinner (void)
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{
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GtkWidget *w = gtk_spinner_new ();
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gtk_spinner_start (GTK_SPINNER (w));
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return w;
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}
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static GtkWidget *
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create_spinbutton (void)
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{
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GtkWidget *w = gtk_spin_button_new_with_range (0, 10, 1);
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return w;
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}
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static GtkWidget *
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create_label (void)
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{
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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.");
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gtk_label_set_line_wrap (GTK_LABEL (w), TRUE);
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gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
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return w;
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}
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static const struct {
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const char *name;
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GtkWidget * (*create_func) (void);
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} widget_types[] = {
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{ "Button", create_button },
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{ "Blurbutton", create_blurred_button },
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{ "Fontbutton", create_font_button },
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{ "Levelbar" , create_level_bar },
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{ "Label" , create_label },
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{ "Spinner" , create_spinner },
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{ "Spinbutton", create_spinbutton },
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};
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static int selected_widget_type = -1;
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static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);
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#define N_STATS 5
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#define STATS_UPDATE_TIME G_USEC_PER_SEC
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static void
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set_widget_type (GtkWidget *headerbar,
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int widget_type_index)
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{
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if (widget_type_index == selected_widget_type)
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return;
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/* Remove everything */
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gtk_fishbowl_set_count (GTK_FISHBOWL (fishbowl), 0);
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selected_widget_type = widget_type_index;
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gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
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widget_types[selected_widget_type].name);
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}
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typedef struct _Stats Stats;
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struct _Stats {
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gint64 last_stats;
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gint64 last_frame;
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gint last_suggestion;
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guint frame_counter_max;
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guint stats_index;
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guint frame_counter[N_STATS];
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guint item_counter[N_STATS];
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};
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static Stats *
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get_stats (GtkWidget *widget)
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{
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static GQuark stats_quark = 0;
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Stats *stats;
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if (G_UNLIKELY (stats_quark == 0))
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stats_quark = g_quark_from_static_string ("stats");
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stats = g_object_get_qdata (G_OBJECT (widget), stats_quark);
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if (stats == NULL)
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{
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stats = g_new0 (Stats, 1);
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g_object_set_qdata_full (G_OBJECT (widget), stats_quark, stats, g_free);
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stats->last_frame = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
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stats->last_stats = stats->last_frame;
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}
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return stats;
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}
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static void
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do_stats (GtkWidget *widget,
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GtkWidget *info_label,
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gint *suggested_change)
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{
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Stats *stats;
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gint64 frame_time;
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stats = get_stats (widget);
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frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
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if (stats->last_stats + STATS_UPDATE_TIME < frame_time)
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{
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char *new_label;
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guint i, n_frames;
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n_frames = 0;
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for (i = 0; i < N_STATS; i++)
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{
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n_frames += stats->frame_counter[i];
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}
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new_label = g_strdup_printf ("widgets - %.1f fps",
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(double) G_USEC_PER_SEC * n_frames
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/ (N_STATS * STATS_UPDATE_TIME));
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gtk_label_set_label (GTK_LABEL (info_label), new_label);
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g_free (new_label);
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if (stats->frame_counter[stats->stats_index] >= 19 * stats->frame_counter_max / 20)
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{
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if (stats->last_suggestion > 0)
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stats->last_suggestion *= 2;
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else
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stats->last_suggestion = 1;
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}
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else
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{
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if (stats->last_suggestion < 0)
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stats->last_suggestion--;
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else
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stats->last_suggestion = -1;
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stats->last_suggestion = MAX (stats->last_suggestion, 1 - (int) stats->item_counter[stats->stats_index]);
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}
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stats->stats_index = (stats->stats_index + 1) % N_STATS;
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stats->frame_counter[stats->stats_index] = 0;
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stats->item_counter[stats->stats_index] = stats->item_counter[(stats->stats_index + N_STATS - 1) % N_STATS];
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stats->last_stats = frame_time;
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if (suggested_change)
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*suggested_change = stats->last_suggestion;
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else
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stats->last_suggestion = 0;
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}
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else
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{
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if (suggested_change)
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*suggested_change = 0;
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}
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stats->last_frame = frame_time;
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stats->frame_counter[stats->stats_index]++;
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stats->frame_counter_max = MAX (stats->frame_counter_max, stats->frame_counter[stats->stats_index]);
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}
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static void
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stats_update (GtkWidget *widget)
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{
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Stats *stats;
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stats = get_stats (widget);
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stats->item_counter[stats->stats_index] = gtk_fishbowl_get_count (GTK_FISHBOWL (widget));
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}
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static gboolean
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move_fish (GtkWidget *bowl,
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GdkFrameClock *frame_clock,
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gpointer info_label)
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{
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gint suggested_change = 0;
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do_stats (bowl, info_label, &suggested_change);
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if (suggested_change > 0)
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{
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int i;
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for (i = 0; i < suggested_change; i ++)
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{
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GtkWidget *new_widget = widget_types[selected_widget_type].create_func ();
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gtk_widget_show (new_widget);
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gtk_container_add (GTK_CONTAINER (fishbowl), new_widget);
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}
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}
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else if (suggested_change < 0)
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{
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gtk_fishbowl_set_count (GTK_FISHBOWL (fishbowl),
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gtk_fishbowl_get_count (GTK_FISHBOWL (fishbowl)) + suggested_change);
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}
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stats_update (bowl);
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return G_SOURCE_CONTINUE;
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}
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static void
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next_button_clicked_cb (GtkButton *source,
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gpointer user_data)
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{
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GtkWidget *headerbar = user_data;
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int new_index;
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if (selected_widget_type + 1 >= N_WIDGET_TYPES)
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new_index = 0;
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else
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new_index = selected_widget_type + 1;
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set_widget_type (headerbar, new_index);
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}
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static void
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prev_button_clicked_cb (GtkButton *source,
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gpointer user_data)
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{
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GtkWidget *headerbar = user_data;
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int new_index;
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if (selected_widget_type - 1 < 0)
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new_index = N_WIDGET_TYPES - 1;
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else
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new_index = selected_widget_type - 1;
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set_widget_type (headerbar, new_index);
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}
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GtkWidget *
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do_widgetbowl (GtkWidget *do_widget)
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{
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static GtkWidget *window = NULL;
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static GtkCssProvider *provider = NULL;
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if (provider == NULL)
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{
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provider = gtk_css_provider_new ();
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gtk_css_provider_load_from_data (provider, css, -1, NULL);
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gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
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GTK_STYLE_PROVIDER (provider),
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GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
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}
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if (!window)
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{
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GtkWidget *info_label;
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GtkWidget *count_label;
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GtkWidget *titlebar;
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GtkWidget *title_box;
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GtkWidget *left_box;
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GtkWidget *next_button;
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GtkWidget *prev_button;
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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titlebar = gtk_header_bar_new ();
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gtk_header_bar_set_show_close_button (GTK_HEADER_BAR (titlebar), TRUE);
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info_label = gtk_label_new ("widget - 00.0 fps");
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count_label = gtk_label_new ("0");
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fishbowl = gtk_fishbowl_new ();
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title_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
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prev_button = gtk_button_new_from_icon_name ("pan-start-symbolic", GTK_ICON_SIZE_BUTTON);
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next_button = gtk_button_new_from_icon_name ("pan-end-symbolic", GTK_ICON_SIZE_BUTTON);
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left_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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g_object_bind_property (fishbowl, "count", count_label, "label", 0);
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g_signal_connect (next_button, "clicked", G_CALLBACK (next_button_clicked_cb), titlebar);
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g_signal_connect (prev_button, "clicked", G_CALLBACK (prev_button_clicked_cb), titlebar);
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gtk_fishbowl_set_animating (GTK_FISHBOWL (fishbowl), TRUE);
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gtk_widget_set_hexpand (title_box, TRUE);
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gtk_widget_set_halign (title_box, GTK_ALIGN_END);
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gtk_window_set_titlebar (GTK_WINDOW (window), titlebar);
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gtk_container_add (GTK_CONTAINER (title_box), count_label);
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gtk_container_add (GTK_CONTAINER (title_box), info_label);
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gtk_header_bar_pack_end (GTK_HEADER_BAR (titlebar), title_box);
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gtk_container_add (GTK_CONTAINER (window), fishbowl);
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gtk_style_context_add_class (gtk_widget_get_style_context (left_box), "linked");
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gtk_container_add (GTK_CONTAINER (left_box), prev_button);
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gtk_container_add (GTK_CONTAINER (left_box), next_button);
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gtk_header_bar_pack_start (GTK_HEADER_BAR (titlebar), left_box);
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g_signal_connect (window, "destroy",
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G_CALLBACK (gtk_widget_destroyed), &window);
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gtk_widget_realize (window);
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gtk_widget_add_tick_callback (fishbowl, move_fish, info_label, NULL);
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set_widget_type (titlebar, 0);
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_show_all (window);
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else
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gtk_widget_destroy (window);
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return window;
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}
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