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app: allow setting handle-bar limits explicitly 

In GimpHandleBar, add gimp_handle_bar_{set,unset,get}_limits(), to
allow settings the handle-bar limits explicitly, rather than
inheriting the adjustment limits.
This commit is contained in:
Ell 2020-06-02 18:28:27 +03:00
parent e03b8e597b
commit fa5dd99559
2 changed files with 57 additions and 4 deletions
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52
app/widgets/gimphandlebar.c
View File

@ -97,6 +97,8 @@ gimp_handle_bar_init (GimpHandleBar *bar)
gtk_event_box_set_visible_window (GTK_EVENT_BOX (bar), FALSE);
bar->orientation = GTK_ORIENTATION_HORIZONTAL;
bar->limits_set = FALSE;
bar->lower = 0.0;
bar->upper = 1.0;
}
@ -344,6 +346,45 @@ gimp_handle_bar_set_adjustment (GimpHandleBar *bar,
gimp_handle_bar_adjustment_changed (bar->slider_adj[handle_no], bar);
}
void
gimp_handle_bar_set_limits (GimpHandleBar *bar,
gdouble lower,
gdouble upper)
{
g_return_if_fail (GIMP_IS_HANDLE_BAR (bar));
bar->limits_set = TRUE;
bar->lower = lower;
bar->upper = upper;
gtk_widget_queue_draw (GTK_WIDGET (bar));
}
void
gimp_handle_bar_unset_limits (GimpHandleBar *bar)
{
g_return_if_fail (GIMP_IS_HANDLE_BAR (bar));
bar->limits_set = FALSE;
bar->lower = 0.0;
bar->upper = 1.0;
gimp_handle_bar_adjustment_changed (NULL, bar);
}
gboolean
gimp_handle_bar_get_limits (GimpHandleBar *bar,
gdouble *lower,
gdouble *upper)
{
g_return_val_if_fail (GIMP_IS_HANDLE_BAR (bar), FALSE);
if (lower) *lower = bar->lower;
if (upper) *upper = bar->upper;
return bar->limits_set;
}
void
gimp_handle_bar_connect_events (GimpHandleBar *bar,
GtkWidget *event_source)
@ -375,11 +416,14 @@ static void
gimp_handle_bar_adjustment_changed (GtkAdjustment *adjustment,
GimpHandleBar *bar)
{
if (bar->slider_adj[0])
bar->lower = gtk_adjustment_get_lower (bar->slider_adj[0]);
if (! bar->limits_set)
{
if (bar->slider_adj[0])
bar->lower = gtk_adjustment_get_lower (bar->slider_adj[0]);
if (bar->slider_adj[2])
bar->upper = gtk_adjustment_get_upper (bar->slider_adj[2]);
if (bar->slider_adj[2])
bar->upper = gtk_adjustment_get_upper (bar->slider_adj[2]);
}
gtk_widget_queue_draw (GTK_WIDGET (bar));
}

9
app/widgets/gimphandlebar.h
View File

@ -36,6 +36,7 @@ struct _GimpHandleBar
GtkOrientation orientation;
GtkAdjustment *slider_adj[3];
gboolean limits_set;
gdouble lower;
gdouble upper;
@ -57,6 +58,14 @@ void gimp_handle_bar_set_adjustment (GimpHandleBar *bar,
gint handle_no,
GtkAdjustment *adjustment);
void gimp_handle_bar_set_limits (GimpHandleBar *bar,
gdouble lower,
gdouble upper);
void gimp_handle_bar_unset_limits (GimpHandleBar *bar);
gboolean gimp_handle_bar_get_limits (GimpHandleBar *bar,
gdouble *lower,
gdouble *upper);
void gimp_handle_bar_connect_events (GimpHandleBar *bar,
GtkWidget *event_source);