diff options
Diffstat (limited to 'applets/clock/calendar-window.c')
| -rw-r--r-- | applets/clock/calendar-window.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/applets/clock/calendar-window.c b/applets/clock/calendar-window.c index 9f794dce..b6f25abd 100644 --- a/applets/clock/calendar-window.c +++ b/applets/clock/calendar-window.c @@ -84,6 +84,7 @@ struct _CalendarWindowPrivate { CalendarClient *client; GtkWidget *appointment_list; + GtkWidget *appointment_tree_view; GtkListStore *appointments_model; GtkListStore *tasks_model; @@ -995,6 +996,94 @@ create_hig_calendar_frame (CalendarWindow *calwin, return create_hig_frame (calwin, title, button_label, key, callback); } +/* Calculate relative luminance of a color to + * determine if the text should be light or dark */ +static gdouble +calculate_luminance (GdkRGBA *color) +{ + + /* Use the formula from https://en.wikipedia.org/wiki/Relative_luminance */ + return 0.2126 * color->red + 0.7152 * color->green + 0.0722 * color->blue; +} + +/* Get current time in the same format as stored event times. + * Event times are stored as local time but interpreted as UTC when displayed, + * so we need to create a UTC timestamp with local time components. */ +static time_t +get_current_time_for_appointments (void) +{ + GDateTime *now_dt, *utc_dt; + time_t current_time; + + now_dt = g_date_time_new_now_local(); + utc_dt = g_date_time_new_utc(g_date_time_get_year(now_dt), + g_date_time_get_month(now_dt), + g_date_time_get_day_of_month(now_dt), + g_date_time_get_hour(now_dt), + g_date_time_get_minute(now_dt), + g_date_time_get_second(now_dt)); + current_time = g_date_time_to_unix(utc_dt); + g_date_time_unref(now_dt); + g_date_time_unref(utc_dt); + + return current_time; +} + +static void +appointment_cell_data_func (GtkTreeViewColumn *column, + GtkCellRenderer *cell, + GtkTreeModel *model, + GtkTreeIter *iter, + gpointer user_data) +{ + gchar *color_string = NULL; + time_t start_time = 0, end_time = 0; + time_t current_time; + gboolean is_all_day = FALSE; + GdkRGBA bg_color; + gchar *bg_color_str; + gdouble luminance; + + gtk_tree_model_get(model, iter, + APPOINTMENT_COLUMN_COLOR, &color_string, + APPOINTMENT_COLUMN_START_TIME, &start_time, + APPOINTMENT_COLUMN_END_TIME, &end_time, + APPOINTMENT_COLUMN_ALL_DAY, &is_all_day, + -1); + + current_time = get_current_time_for_appointments(); + + /* Determine if this is the current event and make it bold */ + if (start_time <= current_time && end_time > current_time && !is_all_day) { + g_object_set(cell, "weight", PANGO_WEIGHT_BOLD, NULL); + } else { + g_object_set(cell, "weight", PANGO_WEIGHT_NORMAL, NULL); + } + + /* Set background color from Evolution data */ + if (color_string && *color_string && gdk_rgba_parse(&bg_color, color_string)) { + bg_color_str = gdk_rgba_to_string(&bg_color); + g_object_set(cell, "cell-background", bg_color_str, NULL); + g_free(bg_color_str); + + /* Calculate luminance to determine if we need light or dark text */ + luminance = calculate_luminance(&bg_color); + if (luminance > 0.5) { + /* Light background - use dark text */ + g_object_set(cell, "foreground", "#000000", NULL); + } else { + /* Dark background - use light text */ + g_object_set(cell, "foreground", "#FFFFFF", NULL); + } + } else { + g_object_set(cell, + "cell-background-set", FALSE, + "foreground-set", FALSE, + NULL); + } + + g_free(color_string); +} static GtkWidget * create_appointment_list (CalendarWindow *calwin, @@ -1013,12 +1102,18 @@ create_appointment_list (CalendarWindow *calwin, gtk_tree_view_set_model (GTK_TREE_VIEW (list), GTK_TREE_MODEL (calwin->priv->appointments_filter)); + /* Store tree view reference for cell data function */ + calwin->priv->appointment_tree_view = list; + column = gtk_tree_view_column_new (); cell = gtk_cell_renderer_text_new (); gtk_tree_view_column_pack_start (column, cell, FALSE); gtk_tree_view_column_set_attributes (column, cell, "text", APPOINTMENT_COLUMN_START_TEXT, NULL); + gtk_tree_view_column_set_cell_data_func (column, cell, + appointment_cell_data_func, + calwin, NULL); cell = gtk_cell_renderer_text_new (); g_object_set (cell, @@ -1030,6 +1125,10 @@ create_appointment_list (CalendarWindow *calwin, gtk_tree_view_column_set_attributes (column, cell, "text", APPOINTMENT_COLUMN_SUMMARY, NULL); + gtk_tree_view_column_set_cell_data_func (column, cell, + appointment_cell_data_func, + calwin, NULL); + gtk_tree_view_append_column (GTK_TREE_VIEW (list), column); gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (list), FALSE); @@ -1328,6 +1427,42 @@ handle_appointments_changed (CalendarWindow *calwin) update_frame_visibility (calwin->priv->appointment_list, GTK_TREE_MODEL (calwin->priv->appointments_filter)); + + /* Auto-scroll to next upcoming event */ + if (calwin->priv->appointment_tree_view) { + GtkTreeView *tree_view = GTK_TREE_VIEW(calwin->priv->appointment_tree_view); + GtkTreeModel *model = GTK_TREE_MODEL(calwin->priv->appointments_filter); + GtkTreeIter iter; + time_t now; + gboolean found = FALSE; + + now = get_current_time_for_appointments(); + + /* Find first current or future event */ + if (gtk_tree_model_get_iter_first(model, &iter)) { + do { + time_t event_start, event_end; + gboolean is_all_day; + gtk_tree_model_get(model, &iter, + APPOINTMENT_COLUMN_START_TIME, &event_start, + APPOINTMENT_COLUMN_END_TIME, &event_end, + APPOINTMENT_COLUMN_ALL_DAY, &is_all_day, + -1); + /* Check if this is a current event (happening now) or future event */ + if ((event_start <= now && event_end > now && !is_all_day) || event_start >= now) { + found = TRUE; + break; + } + } while (gtk_tree_model_iter_next(model, &iter)); + } + + if (found) { + GtkTreePath *path = gtk_tree_model_get_path(model, &iter); + /* Scroll to center (0.5 puts it in the middle) */ + gtk_tree_view_scroll_to_cell(tree_view, path, NULL, TRUE, 0.5, 0.0); + gtk_tree_path_free(path); + } + } } static void |