initial commit

yup, i definitely wrote all of this in a single commit

1 files changed, 152 insertions, 0 deletions

diff --git a/src/widgets/panel/panel-item-clock.c b/src/widgets/panel/panel-item-clock.c
new file mode 100644
index 0000000..1efd7fa
--- /dev/null
+++ b/src/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 );
+}
\ No newline at end of file