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visualizer: add set_time_range() and get_time_range()

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This allows the row to be notified of the visible range, which
can result from changing the zoom or a new reader being set.
This commit is contained in:
Christian Hergert
2016-09-25 15:35:14 -07:00
parent 1f07467800
commit 5ceff81d5d
2 changed files with 71 additions and 3 deletions
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49
lib/sp-visualizer-row.c
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@ -18,7 +18,13 @@
#include "sp-visualizer-row.h"
G_DEFINE_ABSTRACT_TYPE (SpVisualizerRow, sp_visualizer_row, GTK_TYPE_LIST_BOX_ROW)
typedef struct
{
gint64 begin_time;
gint64 end_time;
} SpVisualizerRowPrivate;
G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (SpVisualizerRow, sp_visualizer_row, GTK_TYPE_LIST_BOX_ROW)
static void
sp_visualizer_row_class_init (SpVisualizerRowClass *klass)
@ -39,3 +45,44 @@ sp_visualizer_row_set_reader (SpVisualizerRow *self,
if (SP_VISUALIZER_ROW_GET_CLASS (self)->set_reader)
SP_VISUALIZER_ROW_GET_CLASS (self)->set_reader (self, reader);
}
void
sp_visualizer_row_set_time_range (SpVisualizerRow *self,
gint64 begin_time,
gint64 end_time)
{
SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
g_return_if_fail (SP_IS_VISUALIZER_ROW (self));
if (begin_time > end_time)
{
gint64 tmp = begin_time;
begin_time = end_time;
end_time = tmp;
}
priv->begin_time = begin_time;
priv->end_time = end_time;
if (SP_VISUALIZER_ROW_GET_CLASS (self)->set_time_range)
SP_VISUALIZER_ROW_GET_CLASS (self)->set_time_range (self, begin_time, end_time);
}
void
sp_visualizer_row_get_time_range (SpVisualizerRow *self,
gint64 *begin_time,
gint64 *end_time)
{
SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
g_return_if_fail (SP_IS_VISUALIZER_ROW (self));
g_return_if_fail (begin_time != NULL);
g_return_if_fail (end_time != NULL);
if (begin_time != NULL)
*begin_time = priv->begin_time;
if (end_time != NULL)
*end_time = priv->end_time;
}