backends: Add function to apply pressure sensitivity to tablet tools

A bezier curve is created out of the 2 control points in settings, so the pressure is made to follow the stablished curve between 0 and 1.
2016-06-22 15:58:33 +02:00
parent 7e267e9b01
commit f9552bb9c0
2 changed files with 89 additions and 0 deletions
--- a/src/backends/meta-input-settings-private.h
+++ b/src/backends/meta-input-settings-private.h
@@ -110,6 +110,11 @@ GDesktopStylusButtonAction meta_input_settings_get_stylus_button_action (MetaInp
                                                                         ClutterInputDeviceTool *tool,
                                                                         ClutterInputDevice     *current_device,
                                                                         guint                   button);
+gdouble                    meta_input_settings_translate_tablet_tool_pressure (MetaInputSettings      *input_settings,
+                                                                               ClutterInputDeviceTool *tool,
+                                                                               ClutterInputDevice     *current_tablet,
+                                                                               gdouble                 pressure);
+
 #ifdef HAVE_LIBWACOM
 WacomDevice * meta_input_settings_get_tablet_wacom_device (MetaInputSettings *settings,
                                                           ClutterInputDevice *device);