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gtk3-demo: Show multiple master devices on the "Event axes" demo

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This commit is contained in:
Carlos Garnacho 2015-02-10 15:59:18 +01:00
parent 505dac94be
commit 89b7f859a4
1 changed files with 35 additions and 31 deletions
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66
demos/gtk-demo/event_axes.c
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@ -31,7 +31,7 @@ typedef struct {
} AxesInfo;
typedef struct {
AxesInfo *pointer_info;
GHashTable *pointer_info; /* GdkDevice -> AxesInfo */
GHashTable *touch_info; /* GdkEventSequence -> AxesInfo */
} EventData;
@ -65,20 +65,16 @@ axes_info_new (void)
return info;
}
static void
axes_info_free (AxesInfo *info)
{
g_free (info);
}
static EventData *
event_data_new (void)
{
EventData *data;
data = g_new0 (EventData, 1);
data->pointer_info = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) g_free);
data->touch_info = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) axes_info_free);
(GDestroyNotify) g_free);
return data;
}
@ -86,8 +82,7 @@ event_data_new (void)
static void
event_data_free (EventData *data)
{
if (data->pointer_info)
axes_info_free (data->pointer_info);
g_hash_table_destroy (data->pointer_info);
g_hash_table_destroy (data->touch_info);
g_free (data);
}
@ -96,11 +91,12 @@ static void
update_axes_from_event (GdkEvent *event,
EventData *data)
{
GdkDevice *source_device;
GdkDevice *device, *source_device;
GdkEventSequence *sequence;
gdouble x, y;
AxesInfo *info;
device = gdk_event_get_device (event);
source_device = gdk_event_get_source_device (event);
sequence = gdk_event_get_event_sequence (event);
@ -112,17 +108,19 @@ update_axes_from_event (GdkEvent *event,
}
else if (event->type == GDK_LEAVE_NOTIFY)
{
if (data->pointer_info)
axes_info_free (data->pointer_info);
data->pointer_info = NULL;
g_hash_table_remove (data->pointer_info, device);
return;
}
if (!sequence)
{
if (!data->pointer_info)
data->pointer_info = axes_info_new ();
info = data->pointer_info;
info = g_hash_table_lookup (data->pointer_info, device);
if (!info)
{
info = axes_info_new ();
g_hash_table_insert (data->pointer_info, device, info);
}
}
else
{
@ -144,11 +142,7 @@ update_axes_from_event (GdkEvent *event,
event->type == GDK_TOUCH_UPDATE)
{
if (sequence && event->touch.emulating_pointer)
{
if (data->pointer_info)
axes_info_free (data->pointer_info);
data->pointer_info = NULL;
}
g_hash_table_remove (data->pointer_info, device);
}
if (event->type == GDK_MOTION_NOTIFY)
{
@ -352,7 +346,7 @@ draw_cb (GtkWidget *widget,
{
EventData *data = user_data;
GtkAllocation allocation;
AxesInfo *touch_info;
AxesInfo *info;
GHashTableIter iter;
gpointer key, value;
gint y = 0;
@ -360,27 +354,37 @@ draw_cb (GtkWidget *widget,
gtk_widget_get_allocation (widget, &allocation);
/* Draw Abs info */
if (data->pointer_info)
draw_axes_info (cr, data->pointer_info, &allocation);
g_hash_table_iter_init (&iter, data->pointer_info);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
info = value;
draw_axes_info (cr, info, &allocation);
}
g_hash_table_iter_init (&iter, data->touch_info);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
touch_info = value;
draw_axes_info (cr, touch_info, &allocation);
info = value;
draw_axes_info (cr, info, &allocation);
}
/* Draw name, color legend and misc data */
if (data->pointer_info)
draw_device_info (widget, cr, NULL, &y, data->pointer_info);
g_hash_table_iter_init (&iter, data->pointer_info);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
info = value;
draw_device_info (widget, cr, NULL, &y, info);
}
g_hash_table_iter_init (&iter, data->touch_info);
while (g_hash_table_iter_next (&iter, &key, &value))
{
touch_info = value;
draw_device_info (widget, cr, key, &y, touch_info);
info = value;
draw_device_info (widget, cr, key, &y, info);
}
return FALSE;