Implement shift button for deleting spells and add patch to work towards touchscreen control

Author: terrabyte25

app/src/main/java/ui/controls/Osc.kt

@@ -308,6 +308,8 @@ class Osc(
         keyboardButton,
         OscImageButton("use", R.drawable.use, 940, 368, KeyEvent.KEYCODE_SPACE),
 
+        OscImageButton("shift", R.drawable.del, 140, 0, KeyEvent.KEYCODE_SHIFT_LEFT),
+
         OscJoystickLeft("joystickLeft", 75, 400, 170, 0),
         OscJoystickRight("joystickRight", 650, 400, 170, 1)
     )

app/src/main/res/layout/screencontrols.xml

@@ -327,6 +327,16 @@
             android:scaleType="fitCenter"
             android:src="@drawable/use" />
 
+        <ImageButton
+            android:id="@+id/buttonshift"
+            android:layout_width="50dip"
+            android:layout_height="50dip"
+            android:background="@null"
+            android:focusable="true"
+            android:focusableInTouchMode="true"
+            android:scaleType="fitCenter"
+            android:src="@drawable/del" />
+
         <Button
             android:id="@+id/buttonsize1"
             android:layout_width="50dip"

buildscripts/patches/openmw-mouse-visibility.patch

@@ -0,0 +1,13 @@
+diff --git a/apps/openmw/mwgui/windowmanagerimp.cpp b/apps/openmw/mwgui/windowmanagerimp.cpp
+index abd483a72..3ab11ead4 100644
+--- a/apps/openmw/mwgui/windowmanagerimp.cpp
++++ b/apps/openmw/mwgui/windowmanagerimp.cpp
+@@ -1678,7 +1678,7 @@ namespace MWGui
+ 
+     bool WindowManager::getCursorVisible()
+     {
+-        return mCursorVisible && mCursorActive;
++        return mCursorVisible;
+     }
+ 
+     void WindowManager::trackWindow(Layout *layout, const std::string &name)