Added "1.5" column mode

app/src/main/java/eu/faircode/email/ActivityView.java

@@ -197,7 +197,7 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
                 Log.i("Drawer opened");
                 owner.start();
 
-                if (normal && landscape && landscape3 &&
+                if (normal && landscape3 &&
                         config.orientation == Configuration.ORIENTATION_LANDSCAPE) {
                     drawerLayout.setDrawerLockMode(LOCK_MODE_LOCKED_OPEN);
                     childContent.setPaddingRelative(childDrawer.getLayoutParams().width, 0, 0, 0);
@@ -214,7 +214,7 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
                 else
                     owner.stop();
 
-                if (normal && landscape && landscape3 &&
+                if (normal && landscape3 &&
                         config.orientation == Configuration.ORIENTATION_LANDSCAPE)
                     childContent.setPaddingRelative(
                             Math.round(slideOffset * childDrawer.getLayoutParams().width), 0, 0, 0);

app/src/main/java/eu/faircode/email/DrawerLayoutEx.java

@@ -51,10 +51,9 @@ public class DrawerLayoutEx extends DrawerLayout {
     void setup(Configuration config, View drawerContainer, ActionBarDrawerToggle drawerToggle) {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
         boolean normal = config.isLayoutSizeAtLeast(Configuration.SCREENLAYOUT_SIZE_NORMAL);
-        boolean landscape = prefs.getBoolean("landscape", true);
         boolean landscape3 = prefs.getBoolean("landscape3", false);
 
-        if (normal && landscape && landscape3 &&
+        if (normal && landscape3 &&
                 config.orientation == Configuration.ORIENTATION_LANDSCAPE) {
             setScrimColor(Color.TRANSPARENT);
             openDrawer(drawerContainer, false);

app/src/main/java/eu/faircode/email/FragmentOptionsDisplay.java

@@ -273,7 +273,6 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
                 prefs.edit().putBoolean("landscape", checked).apply();
-                swLandscape3.setEnabled(checked);
             }
         });
 
@@ -794,7 +793,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
         swLandscape.setChecked(prefs.getBoolean("landscape", true));
         swLandscape.setEnabled(normal);
         swLandscape3.setChecked(prefs.getBoolean("landscape3", false));
-        swLandscape3.setEnabled(normal && swLandscape.isChecked());
+        swLandscape3.setEnabled(normal);
 
         swThreading.setChecked(prefs.getBoolean("threading", true));
         swThreadingUnread.setChecked(prefs.getBoolean("threading_unread", false));