From: Adam Halim <adaha@cendio.se>
Date: Tue, 24 Sep 2024 14:38:35 +0000 (+0200)
Subject: Use bit shifts for mouse buttonMask
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=66287bd933e1d5426b7b6108afcc42ac9b3440a5;p=tigervnc.git

Use bit shifts for mouse buttonMask

It makes more sense to use bit shifts instead of decimals for each
button.
---

diff --git a/vncviewer/Viewport.cxx b/vncviewer/Viewport.cxx
index ad7a6e8d..9d71a859 100644
--- a/vncviewer/Viewport.cxx
+++ b/vncviewer/Viewport.cxx
@@ -600,22 +600,22 @@ int Viewport::handle(int event)
   case FL_MOUSEWHEEL:
     buttonMask = 0;
     if (Fl::event_button1())
-      buttonMask |= 1;
+      buttonMask |= 1 << 0;
     if (Fl::event_button2())
-      buttonMask |= 2;
+      buttonMask |= 1 << 1;
     if (Fl::event_button3())
-      buttonMask |= 4;
+      buttonMask |= 1 << 2;
 
     if (event == FL_MOUSEWHEEL) {
       wheelMask = 0;
       if (Fl::event_dy() < 0)
-        wheelMask |= 8;
+        wheelMask |= 1 << 3;
       if (Fl::event_dy() > 0)
-        wheelMask |= 16;
+        wheelMask |= 1 << 4;
       if (Fl::event_dx() < 0)
-        wheelMask |= 32;
+        wheelMask |= 1 << 5;
       if (Fl::event_dx() > 0)
-        wheelMask |= 64;
+        wheelMask |= 1 << 6;
 
       // A quick press of the wheel "button", followed by a immediate
       // release below