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progressbar: port to progress tracker

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This commit is contained in:
Matt Watson 2016-03-28 01:08:48 -07:00
parent 5237b7a6b0
commit d57ebe2de7
1 changed files with 30 additions and 21 deletions
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45
gtk/gtkprogressbar.c
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@ -38,6 +38,7 @@
#include "gtkcssstylepropertyprivate.h"
#include "gtkcsscustomgadgetprivate.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkprogresstrackerprivate.h"
#include "a11y/gtkprogressbaraccessible.h"
@ -92,6 +93,7 @@
#define MIN_VERTICAL_BAR_WIDTH 7
#define MIN_VERTICAL_BAR_HEIGHT 80
#define DEFAULT_PULSE_DURATION 250000000
struct _GtkProgressBarPrivate
{
@ -111,9 +113,10 @@ struct _GtkProgressBarPrivate
GtkOrientation orientation;
guint tick_id;
GtkProgressTracker tracker;
gint64 pulse1;
gint64 pulse2;
gint64 frame1;
gdouble last_iteration;
guint activity_dir : 1;
guint activity_mode : 1;
@ -1142,31 +1145,30 @@ tick_cb (GtkWidget *widget,
{
GtkProgressBar *pbar = GTK_PROGRESS_BAR (widget);
GtkProgressBarPrivate *priv = pbar->priv;
gint64 frame2;
gdouble fraction;
gint64 frame_time;
gdouble iteration, pulse_iterations, current_iterations, fraction;
frame2 = gdk_frame_clock_get_frame_time (frame_clock);
if (priv->frame1 == 0)
priv->frame1 = frame2 - 16667;
if (priv->pulse1 == 0)
priv->pulse1 = priv->pulse2 - 250 * 1000000;
if (priv->pulse2 == 0 && priv->pulse1 == 0)
return G_SOURCE_CONTINUE;
frame_time = gdk_frame_clock_get_frame_time (frame_clock);
gtk_progress_tracker_advance_frame (&priv->tracker, frame_time);
g_assert (priv->pulse2 > priv->pulse1);
g_assert (frame2 > priv->frame1);
if (frame2 - priv->pulse2 > 3 * (priv->pulse2 - priv->pulse1))
{
priv->pulse1 = 0;
return G_SOURCE_CONTINUE;
}
pulse_iterations = (priv->pulse2 - priv->pulse1) / (gdouble) G_USEC_PER_SEC;
current_iterations = (frame_time - priv->pulse1) / (gdouble) G_USEC_PER_SEC;
iteration = gtk_progress_tracker_get_iteration (&priv->tracker);
/* Determine the fraction to move the block from one frame
* to the next when pulse_fraction is how far the block should
* move between two calls to gtk_progress_bar_pulse().
*/
fraction = priv->pulse_fraction * (frame2 - priv->frame1) / MAX (frame2 - priv->pulse2, priv->pulse2 - priv->pulse1);
fraction = priv->pulse_fraction * (iteration - priv->last_iteration) / MAX (pulse_iterations, current_iterations);
priv->last_iteration = iteration;
priv->frame1 = frame2;
if (current_iterations > 3 * pulse_iterations)
return G_SOURCE_CONTINUE;
/* advance the block */
if (priv->activity_dir == 0)
@ -1243,10 +1245,13 @@ gtk_progress_bar_act_mode_enter (GtkProgressBar *pbar)
}
update_node_classes (pbar);
/* No fixed schedule for pulses, will adapt after calls to update_pulse. Just
* start the tracker to repeat forever with iterations every second.*/
gtk_progress_tracker_start (&priv->tracker, G_USEC_PER_SEC, 0, INFINITY);
priv->tick_id = gtk_widget_add_tick_callback (widget, tick_cb, NULL, NULL);
priv->pulse2 = 0;
priv->pulse1 = 0;
priv->frame1 = 0;
priv->last_iteration = 0;
}
static void
@ -1406,9 +1411,13 @@ static void
gtk_progress_bar_update_pulse (GtkProgressBar *pbar)
{
GtkProgressBarPrivate *priv = pbar->priv;
gint64 pulse_time = g_get_monotonic_time ();
if (priv->pulse2 == pulse_time)
return;
priv->pulse1 = priv->pulse2;
priv->pulse2 = g_get_monotonic_time ();
priv->pulse2 = pulse_time;
}
/**