Adjust README.md and allow left and right arrow keys to navigate

[pstop.git] / state / state.go

diff --git a/state/state.go b/state/state.go
index e0056ba..682fb1c 100644 (file)
--- a/state/state.go
+++ b/state/state.go
@@ -152,6 +152,8 @@ func (state State) Help() bool {
        return state.help
 }
 
+// states go: showLatency -> showOps -> showIO -> showLocks -> showUsers
+
 // display the output according to the mode we are in
 func (state *State) Display() {
        if state.help {
@@ -171,6 +173,29 @@ func (state *State) Display() {
        }
 }
 
+// fix_latency_setting() ensures the SetWantsLatency() value is
+// correct. This needs to be done more cleanly.
+func (state *State) fix_latency_setting() {
+       if state.show == showLatency {
+               state.tiwsbt.SetWantsLatency(true)
+       }
+       if state.show == showOps {
+               state.tiwsbt.SetWantsLatency(false)
+       }
+}
+
+// change to the previous display mode
+func (state *State) DisplayPrevious() {
+       if state.show == showLatency {
+               state.show = showUsers
+       } else {
+               state.show--
+       }
+       state.fix_latency_setting()
+       state.screen.Clear()
+       state.screen.Flush()
+}
+
 // change to the next display mode
 func (state *State) DisplayNext() {
        if state.show == showUsers {
@@ -178,13 +203,7 @@ func (state *State) DisplayNext() {
        } else {
                state.show++
        }
-       // this needs to be done more cleanly
-       if state.show == showLatency {
-               state.tiwsbt.SetWantsLatency(true)
-       }
-       if state.show == showOps {
-               state.tiwsbt.SetWantsLatency(false)
-       }
+       state.fix_latency_setting()
        state.screen.Clear()
        state.screen.Flush()
 }