93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
#include <gtk/gtk.h>
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static GtkWidget *
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create_level_bar (void)
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{
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GtkWidget *level_bar;
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level_bar = gtk_level_bar_new ();
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gtk_level_bar_add_offset_value (GTK_LEVEL_BAR (level_bar),
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GTK_LEVEL_BAR_OFFSET_LOW, 0.10);
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gtk_level_bar_add_offset_value (GTK_LEVEL_BAR (level_bar),
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"my-offset", 0.50);
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return level_bar;
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}
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static void
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add_custom_css (void)
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{
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GtkCssProvider *provider;
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const gchar data[] =
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".level-bar.fill-block.empty-fill-block {"
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" background-color: transparent;"
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" background-image: none;"
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" border-color: alpha(@theme_fg_color, 0.1);"
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"}"
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".level-bar.fill-block.level-my-offset {"
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" background-image: linear-gradient(to bottom,"
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" shade(magenta,0.9),"
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" magenta,"
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" shade(magenta,0.85));"
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"}";
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provider = gtk_css_provider_new ();
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gtk_css_provider_load_from_data (provider, data, -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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static gboolean
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increase_level (gpointer data)
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{
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GtkLevelBar *bar = data;
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gdouble value;
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value = gtk_level_bar_get_value (bar);
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value += 0.01;
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if (value >= 1.0)
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value = 0.0;
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gtk_level_bar_set_value (bar, value);
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return G_SOURCE_CONTINUE;
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}
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static gboolean
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window_delete_event (GtkWidget *widget,
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GdkEvent *event,
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gpointer _data)
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{
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gtk_main_quit ();
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return FALSE;
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}
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int
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main (int argc, char *argv[])
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{
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GtkWidget *window;
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GtkWidget *bar;
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gtk_init (&argc, &argv);
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add_custom_css ();
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size (GTK_WINDOW (window), 500, 100);
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bar = create_level_bar ();
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g_object_set (bar, "margin", 20, NULL);
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gtk_container_add (GTK_CONTAINER (window), bar);
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gtk_widget_show_all (window);
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g_signal_connect (window, "delete-event",
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G_CALLBACK (window_delete_event), NULL);
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g_timeout_add (100, increase_level, bar);
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gtk_main ();
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return 0;
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}
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