Use MainPanel type in State struct

The State struct holds a pointer to the main process panel.
Use the distinct MainPanel type, to improve maintainability regrading
its usage.
This avoids usages of down-casts from Panel to MainPanel, only up-casts
from MainPanel to Panel are now required.

1 files changed, 2 insertions, 3 deletions

diff --git a/htop.c b/htop.c
index 51f2f4e3..65ad21e4 100644
--- a/htop.c
+++ b/htop.c
@@ -294,9 +294,8 @@ static void millisleep(unsigned long millisec) {
 }
 
 static void setCommFilter(State* state, char** commFilter) {
-   MainPanel* panel = (MainPanel*)state->panel;
    ProcessList* pl = state->pl;
-   IncSet* inc = panel->inc;
+   IncSet* inc = state->mainPanel->inc;
 
    IncSet_setFilter(inc, *commFilter);
    pl->incFilter = IncSet_filter(inc);
@@ -453,7 +452,7 @@ int main(int argc, char** argv) {
       .settings = settings,
       .ut = ut,
       .pl = pl,
-      .panel = (Panel*) panel,
+      .mainPanel = panel,
       .header = header,
       .pauseProcessUpdate = false,
       .hideProcessSelection = false,