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tools: add tablet support to event-gui

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
This commit is contained in:
Peter Hutterer 2015-11-05 14:37:29 +10:00
parent 4ae64a3436
commit 9d07f8af40
1 changed files with 69 additions and 0 deletions
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69
tools/event-gui.c
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@ -85,6 +85,14 @@ struct window {
double x, y;
} pinch;
struct {
double x, y;
double x_in, y_in;
double pressure;
double distance;
double tilt_x, tilt_y;
} tool;
struct libinput_device *devices[50];
};
@ -216,6 +224,27 @@ draw(GtkWidget *widget, cairo_t *cr, gpointer data)
cairo_stroke(cr);
cairo_restore(cr);
/* tablet tool, square for prox-in location */
cairo_save(cr);
cairo_set_source_rgb(cr, .8, .8, .8);
if (w->tool.x_in && w->tool.y_in) {
cairo_rectangle(cr, w->tool.x_in - 15, w->tool.y_in - 15, 30, 30);
cairo_stroke(cr);
cairo_restore(cr);
cairo_save(cr);
}
if (w->tool.pressure)
cairo_set_source_rgb(cr, .8, .8, .2);
cairo_translate(cr, w->tool.x, w->tool.y);
cairo_scale(cr, 1.0 + w->tool.tilt_x, 1.0 + w->tool.tilt_y);
cairo_arc(cr, 0, 0,
1 + 10 * max(w->tool.pressure, w->tool.distance),
0, 2 * M_PI);
cairo_fill(cr);
cairo_restore(cr);
return TRUE;
}
@ -551,6 +580,45 @@ handle_event_pinch(struct libinput_event *ev, struct window *w)
}
}
static void
handle_event_tablet(struct libinput_event *ev, struct window *w)
{
struct libinput_event_tablet *t = libinput_event_get_tablet_event(ev);
switch (libinput_event_get_type(ev)) {
case LIBINPUT_EVENT_TABLET_PROXIMITY:
if (libinput_event_tablet_get_proximity_state(t) ==
LIBINPUT_TOOL_PROXIMITY_OUT) {
w->tool.x_in = 0;
w->tool.y_in = 0;
} else {
w->tool.x_in = libinput_event_tablet_get_x_transformed(t,
w->width);
w->tool.y_in = libinput_event_tablet_get_y_transformed(t,
w->height);
}
break;
case LIBINPUT_EVENT_TABLET_AXIS:
w->tool.x = libinput_event_tablet_get_x_transformed(t,
w->width);
w->tool.y = libinput_event_tablet_get_y_transformed(t,
w->height);
w->tool.pressure = libinput_event_tablet_get_axis_value(t,
LIBINPUT_TABLET_AXIS_PRESSURE);
w->tool.distance = libinput_event_tablet_get_axis_value(t,
LIBINPUT_TABLET_AXIS_DISTANCE);
w->tool.tilt_x = libinput_event_tablet_get_axis_value(t,
LIBINPUT_TABLET_AXIS_TILT_X);
w->tool.tilt_y = libinput_event_tablet_get_axis_value(t,
LIBINPUT_TABLET_AXIS_TILT_Y);
break;
case LIBINPUT_EVENT_TABLET_BUTTON:
break;
default:
abort();
}
}
static gboolean
handle_event_libinput(GIOChannel *source, GIOCondition condition, gpointer data)
{
@ -609,6 +677,7 @@ handle_event_libinput(GIOChannel *source, GIOCondition condition, gpointer data)
case LIBINPUT_EVENT_TABLET_AXIS:
case LIBINPUT_EVENT_TABLET_PROXIMITY:
case LIBINPUT_EVENT_TABLET_BUTTON:
handle_event_tablet(ev, w);
break;
}