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clutter: Add API to retrieve the physical size of absolute devices

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This will be used in upper layers to match abs input devices (touchscreens,
tablets) to the corresponding output.
This commit is contained in:
Carlos Garnacho 2018-04-20 16:33:02 +02:00 committed by Georges Basile Stavracas Neto
parent 2b938ce795
commit df48b94889
5 changed files with 84 additions and 0 deletions
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4
clutter/clutter/clutter-device-manager-private.h
View File

@ -167,6 +167,10 @@ struct _ClutterInputDeviceClass
gboolean (* is_grouped) (ClutterInputDevice *device,
ClutterInputDevice *other_device);
gboolean (* get_physical_size) (ClutterInputDevice *device,
gdouble *width,
gdouble *height);
/* Keyboard accessbility */
void (* process_kbd_a11y_event) (ClutterEvent *event,
ClutterInputDevice *device,

12
clutter/clutter/clutter-input-device.c
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@ -2284,3 +2284,15 @@ clutter_input_device_is_grouped (ClutterInputDevice *device,
return CLUTTER_INPUT_DEVICE_GET_CLASS (device)->is_grouped (device, other_device);
}
gboolean
clutter_input_device_get_physical_size (ClutterInputDevice *device,
gdouble *width,
gdouble *height)
{
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), FALSE);
return CLUTTER_INPUT_DEVICE_GET_CLASS (device)->get_physical_size (device,
width,
height);
}

4
clutter/clutter/clutter-input-device.h
View File

@ -171,6 +171,10 @@ void clutter_input_device_set_mapping_mode (ClutterInputDev
CLUTTER_EXPORT
gboolean clutter_input_device_is_grouped (ClutterInputDevice *device,
ClutterInputDevice *other_device);
CLUTTER_EXPORT
gboolean clutter_input_device_get_physical_size (ClutterInputDevice *device,
gdouble *width,
gdouble *height);
G_END_DECLS

13
clutter/clutter/evdev/clutter-input-device-evdev.c
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@ -1265,6 +1265,18 @@ clutter_input_device_evdev_release_touch_state (ClutterInputDeviceEvdev *device,
GINT_TO_POINTER (touch_state->device_slot));
}
static gboolean
clutter_input_device_evdev_get_physical_size (ClutterInputDevice *device,
gdouble *width,
gdouble *height)
{
struct libinput_device *libinput_device;
libinput_device = clutter_evdev_input_device_get_libinput_device (device);
return libinput_device_get_size (libinput_device, width, height) == 0;
}
static void
clutter_input_device_evdev_class_init (ClutterInputDeviceEvdevClass *klass)
{
@ -1280,6 +1292,7 @@ clutter_input_device_evdev_class_init (ClutterInputDeviceEvdevClass *klass)
klass->get_group_n_modes = clutter_input_device_evdev_get_group_n_modes;
klass->is_grouped = clutter_input_device_evdev_is_grouped;
klass->process_kbd_a11y_event = clutter_input_device_evdev_process_kbd_a11y_event;
klass->get_physical_size = clutter_input_device_evdev_get_physical_size;
obj_props[PROP_DEVICE_MATRIX] =
g_param_spec_boxed ("device-matrix",

51
clutter/clutter/x11/clutter-input-device-xi2.c
View File

@ -180,6 +180,56 @@ clutter_input_device_xi2_is_mode_switch_button (ClutterInputDevice *device,
return button_group == (int) group;
}
static gboolean
clutter_input_device_xi2_get_physical_size (ClutterInputDevice *device,
gdouble *width,
gdouble *height)
{
Display *xdisplay;
XIDeviceInfo *dev_info;
gdouble w = 0, h = 0;
int i, n_info, device_id;
xdisplay = clutter_x11_get_default_display ();
device_id = clutter_input_device_get_device_id (device);
clutter_x11_trap_x_errors ();
dev_info = XIQueryDevice (xdisplay, device_id, &n_info);
if (clutter_x11_untrap_x_errors ())
return FALSE;
if (!dev_info)
return FALSE;
for (i = 0; i < dev_info->num_classes; i++)
{
XIValuatorClassInfo *valuator;
gdouble *value;
if (dev_info->classes[i]->type != XIValuatorClass)
continue;
valuator = (XIValuatorClassInfo *) dev_info->classes[i];
if (valuator->label == XInternAtom (xdisplay, "Abs X", True) ||
valuator->label == XInternAtom (xdisplay, "Abs MT Position X", True))
value = &w;
else if (valuator->label == XInternAtom (xdisplay, "Abs Y", True) ||
valuator->label == XInternAtom (xdisplay, "Abs MT Position Y", True))
value = &h;
else
continue;
*value = (valuator->max - valuator->min) * 1000 / valuator->resolution;
}
XIFreeDeviceInfo (dev_info);
*width = w;
*height = h;
return (w > 0 && h > 0);
}
static void
clutter_input_device_xi2_class_init (ClutterInputDeviceXI2Class *klass)
{
@ -193,6 +243,7 @@ clutter_input_device_xi2_class_init (ClutterInputDeviceXI2Class *klass)
device_class->is_grouped = clutter_input_device_xi2_is_grouped;
device_class->get_group_n_modes = clutter_input_device_xi2_get_group_n_modes;
device_class->is_mode_switch_button = clutter_input_device_xi2_is_mode_switch_button;
device_class->get_physical_size = clutter_input_device_xi2_get_physical_size;
}
static void