diff options
| -rw-r--r-- | src/indicator-datetime.c | 99 |
1 files changed, 98 insertions, 1 deletions
diff --git a/src/indicator-datetime.c b/src/indicator-datetime.c index 00854a4..8ae75fa 100644 --- a/src/indicator-datetime.c +++ b/src/indicator-datetime.c @@ -37,6 +37,9 @@ struct _IndicatorDatetimePrivate { GtkMenuItem * date; GtkMenuItem * calendar; guint timer; + + guint idle_measure; + gint max_width; }; #define INDICATOR_DATETIME_GET_PRIVATE(o) \ @@ -85,6 +88,9 @@ indicator_datetime_init (IndicatorDatetime *self) self->priv->calendar = NULL; self->priv->timer = 0; + self->priv->idle_measure = 0; + self->priv->max_width = 0; + return; } @@ -113,6 +119,11 @@ indicator_datetime_dispose (GObject *object) self->priv->timer = 0; } + if (self->priv->idle_measure != 0) { + g_source_remove(self->priv->idle_measure); + self->priv->idle_measure = 0; + } + G_OBJECT_CLASS (indicator_datetime_parent_class)->dispose (object); return; } @@ -125,6 +136,28 @@ indicator_datetime_finalize (GObject *object) return; } +/* Looks at the size of the label, if it grew beyond what we + thought was the max, make sure it doesn't shrink again. */ +static gboolean +idle_measure (gpointer data) +{ + IndicatorDatetime * self = INDICATOR_DATETIME(data); + self->priv->idle_measure = 0; + + GtkAllocation allocation; + gtk_widget_get_allocation(GTK_WIDGET(self->priv->label), &allocation); + + if (allocation.width > self->priv->max_width) { + if (self->priv->max_width != 0) { + g_warning("Guessed wrong. We thought the max would be %d but we're now at %d", self->priv->max_width, allocation.width); + } + self->priv->max_width = allocation.width; + gtk_widget_set_size_request(GTK_WIDGET(self->priv->label), self->priv->max_width, -1); + } + + return FALSE; +} + /* Updates the label to be the current time. */ static void update_label (IndicatorDatetime * io) @@ -145,12 +178,16 @@ update_label (IndicatorDatetime * io) return; } - strftime(longstr, 128, "%I:%M %p", ltime); + strftime(longstr, 128, "%l:%M %p", ltime); gchar * utf8 = g_locale_to_utf8(longstr, -1, NULL, NULL, NULL); gtk_label_set_label(self->priv->label, utf8); g_free(utf8); + if (self->priv->idle_measure == 0) { + self->priv->idle_measure = g_idle_add(idle_measure, io); + } + if (self->priv->date == NULL) return; /* Note: may require some localization tweaks */ @@ -191,6 +228,64 @@ activate_cb (GtkWidget *widget, const gchar *command) } } +/* Does a quick meausre of how big the string is in + pixels with a Pango layout */ +static gint +measure_string (GtkStyle * style, PangoContext * context, const gchar * string) +{ + PangoLayout * layout = pango_layout_new(context); + pango_layout_set_text(layout, string, -1); + pango_layout_set_font_description(layout, style->font_desc); + + gint width; + pango_layout_get_pixel_size(layout, &width, NULL); + g_object_unref(layout); + return width; +} + +#define FAT_NUMBER 8 + +/* Try to get a good guess at what a maximum width of the entire + string would be. */ +static void +guess_label_size (IndicatorDatetime * self) +{ + GtkStyle * style = gtk_widget_get_style(GTK_WIDGET(self->priv->label)); + PangoContext * context = gtk_widget_get_pango_context(GTK_WIDGET(self->priv->label)); + + /* TRANSLATORS: This string is used for measuring the size of + the font used for showing the time and is not shown to the + user anywhere. */ + gchar * am_str = g_strdup_printf(_("%d%d:%d%d AM"), FAT_NUMBER, FAT_NUMBER, FAT_NUMBER, FAT_NUMBER); + gint am_width = measure_string(style, context, am_str); + g_free(am_str); + + /* TRANSLATORS: This string is used for measuring the size of + the font used for showing the time and is not shown to the + user anywhere. */ + gchar * pm_str = g_strdup_printf(_("%d%d:%d%d PM"), FAT_NUMBER, FAT_NUMBER, FAT_NUMBER, FAT_NUMBER); + gint pm_width = measure_string(style, context, pm_str); + g_free(pm_str); + + self->priv->max_width = MAX(am_width, pm_width); + gtk_widget_set_size_request(GTK_WIDGET(self->priv->label), self->priv->max_width, -1); + + g_debug("Guessing max time width: %d", self->priv->max_width); + + return; +} + +/* React to the style changing, which could mean an font + update. */ +static void +style_changed (GtkWidget * widget, GtkStyle * oldstyle, gpointer data) +{ + g_debug("New style for time label"); + IndicatorDatetime * self = INDICATOR_DATETIME(data); + guess_label_size(self); + update_label(self); + return; +} /* Grabs the label. Creates it if it doesn't exist already */ @@ -203,6 +298,8 @@ get_label (IndicatorObject * io) if (self->priv->label == NULL) { self->priv->label = GTK_LABEL(gtk_label_new("Time")); g_object_ref(G_OBJECT(self->priv->label)); + g_signal_connect(G_OBJECT(self->priv->label), "style-set", G_CALLBACK(style_changed), self); + guess_label_size(self); update_label(self); gtk_widget_show(GTK_WIDGET(self->priv->label)); } |