diff options
Diffstat (limited to 'csrc/widgets/panel/panel-item-clock.c')
| -rw-r--r-- | csrc/widgets/panel/panel-item-clock.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/csrc/widgets/panel/panel-item-clock.c b/csrc/widgets/panel/panel-item-clock.c new file mode 100644 index 0000000..00b2cc5 --- /dev/null +++ b/csrc/widgets/panel/panel-item-clock.c @@ -0,0 +1,152 @@ +#include "widgets/panel/panel-item-clock.h" + +// +// FoobarPanelItemClock: +// +// A panel item displaying the current time in the format configured by the user. +// + +struct _FoobarPanelItemClock +{ + FoobarPanelItem parent_instance; + gchar* format; + FoobarPanelItemAction action; + GtkWidget* label; + GtkWidget* button; + FoobarClockService* clock_service; +}; + +static void foobar_panel_item_clock_class_init ( FoobarPanelItemClockClass* klass ); +static void foobar_panel_item_clock_init ( FoobarPanelItemClock* self ); +static void foobar_panel_item_clock_finalize ( GObject* object ); +static void foobar_panel_item_clock_handle_clicked( GtkButton* button, + gpointer userdata ); +static gchar* foobar_panel_item_clock_compute_label ( GtkExpression* expression, + GDateTime* time, + gpointer userdata ); + +G_DEFINE_FINAL_TYPE( FoobarPanelItemClock, foobar_panel_item_clock, FOOBAR_TYPE_PANEL_ITEM ) + +// --------------------------------------------------------------------------------------------------------------------- +// Panel Item Implementation +// --------------------------------------------------------------------------------------------------------------------- + +// +// Static initialization for clock panel items. +// +void foobar_panel_item_clock_class_init( FoobarPanelItemClockClass* klass ) +{ + GObjectClass* object_klass = G_OBJECT_CLASS( klass ); + object_klass->finalize = foobar_panel_item_clock_finalize; +} + +// +// Instance initialization for clock panel items. +// +void foobar_panel_item_clock_init( FoobarPanelItemClock* self ) +{ + self->label = gtk_label_new( NULL ); + gtk_label_set_justify( GTK_LABEL( self->label ), GTK_JUSTIFY_CENTER ); + + self->button = gtk_button_new( ); + gtk_button_set_has_frame( GTK_BUTTON( self->button ), FALSE ); + gtk_button_set_child( GTK_BUTTON( self->button ), self->label ); + gtk_widget_set_halign( self->button, GTK_ALIGN_CENTER ); + gtk_widget_set_valign( self->button, GTK_ALIGN_CENTER ); + g_signal_connect( + self->button, + "clicked", + G_CALLBACK( foobar_panel_item_clock_handle_clicked ), + self ); + + gtk_widget_add_css_class( GTK_WIDGET( self ), "clock" ); + foobar_panel_item_set_child( FOOBAR_PANEL_ITEM( self ), self->button ); +} + +// +// Instance cleanup for clock panel items. +// +void foobar_panel_item_clock_finalize( GObject* object ) +{ + FoobarPanelItemClock* self = (FoobarPanelItemClock*)object; + + g_clear_pointer( &self->format, g_free ); + g_clear_object( &self->clock_service ); + + G_OBJECT_CLASS( foobar_panel_item_clock_parent_class )->finalize( object ); +} + +// --------------------------------------------------------------------------------------------------------------------- +// Public API +// --------------------------------------------------------------------------------------------------------------------- + +// +// Create a new clock panel item with the given configuration. +// +FoobarPanelItem* foobar_panel_item_clock_new( + FoobarPanelItemConfiguration const* config, + FoobarClockService* clock_service ) +{ + g_return_val_if_fail( config != NULL, NULL ); + g_return_val_if_fail( foobar_panel_item_configuration_get_kind( config ) == FOOBAR_PANEL_ITEM_KIND_CLOCK, NULL ); + g_return_val_if_fail( FOOBAR_IS_CLOCK_SERVICE( clock_service ), NULL ); + + FoobarPanelItemClock* self = g_object_new( FOOBAR_TYPE_PANEL_ITEM_CLOCK, NULL ); + self->format = g_strdup( foobar_panel_item_clock_configuration_get_format( config ) ); + self->action = foobar_panel_item_configuration_get_action( config ); + self->clock_service = g_object_ref( clock_service ); + + gtk_widget_set_sensitive( self->button, self->action != FOOBAR_PANEL_ITEM_ACTION_NONE ); + + { + GtkExpression* service_expr = gtk_constant_expression_new( FOOBAR_TYPE_CLOCK_SERVICE, self->clock_service ); + GtkExpression* time_expr = gtk_property_expression_new( FOOBAR_TYPE_CLOCK_SERVICE, service_expr, "time" ); + GtkExpression* label_params[] = { time_expr }; + GtkExpression* label_expr = gtk_cclosure_expression_new( + G_TYPE_STRING, + NULL, + G_N_ELEMENTS( label_params ), + label_params, + G_CALLBACK( foobar_panel_item_clock_compute_label ), + self, + NULL ); + gtk_expression_bind( label_expr, self->label, "label", NULL ); + } + + return FOOBAR_PANEL_ITEM( self ); +} + +// --------------------------------------------------------------------------------------------------------------------- +// Signal Handlers +// --------------------------------------------------------------------------------------------------------------------- + +// +// Called when the button was clicked. +// +void foobar_panel_item_clock_handle_clicked( + GtkButton* button, + gpointer userdata ) +{ + (void)button; + FoobarPanelItemClock* self = (FoobarPanelItemClock*)userdata; + + foobar_panel_item_invoke_action( FOOBAR_PANEL_ITEM( self ), self->action ); +} + +// --------------------------------------------------------------------------------------------------------------------- +// Value Converters +// --------------------------------------------------------------------------------------------------------------------- + +// +// Derive the label from a timestamp, depending on the configured time format. +// +gchar* foobar_panel_item_clock_compute_label( + GtkExpression* expression, + GDateTime* time, + gpointer userdata ) +{ + (void)expression; + FoobarPanelItemClock* self = (FoobarPanelItemClock*)userdata; + + return g_date_time_format( time, self->format ); +} |