Ticket #4685: wacom_pressure.patch

src/add-ons/input_server/devices/wacom/TabletDevice.cpp

@@ -30 +30 @@
 #define JITTER_X .0007
 #define JITTER_Y .0007
 #define ACCELERATION_KICK_IN 2.3
+#define MIN_CLICK_PRESSURE 0.2
 
 // constructor
 TabletDevice::TabletDevice(MasterServerDevice* parent, DeviceReader* reader)
@@ -385 +386 @@
             break;
         }
     }
+
+    if (pressure <= MIN_CLICK_PRESSURE && mode == MODE_PEN)
+        firstButton = false;
+
+    pressure = (pressure - MIN_CLICK_PRESSURE) / (1.0 - MIN_CLICK_PRESSURE);
+
     if (pressure > 1.0)
         pressure = 1.0;
     else if (pressure < 0.0)