From: Roman Bazalevsky <rvb@rvb.name>
Date: Tue, 21 Jan 2020 13:07:54 +0000 (+0300)
Subject: Динамическое определение свободного места под графики
X-Git-Url: https://git.rvb.name/weathermon.git/commitdiff_plain/6ea6c53480d7812ce5c3c44f89e6c079aa200b8a?ds=sidebyside

Динамическое определение свободного места под графики
---

diff --git a/bin/weather-lcd b/bin/weather-lcd
index 49fd5e3..779bc49 100755
--- a/bin/weather-lcd
+++ b/bin/weather-lcd
@@ -153,15 +153,17 @@ function setup_pages(conn)
         pageid = def["sensor"].."."..def["param"]
         pagetitle = trim(def["label"])..", "..def["unit"]
         write_command(conn,"screen_add "..pageid)
-        write_command(conn,"screen_set "..pageid.." -cursor off")
-        write_command(conn,"screen_set "..pageid.." -name "..pagetitle.." -duration "..graph_duration)
+        write_command(conn,"screen_set "..pageid.." -cursor off -name "..pagetitle.." -duration "..graph_duration)
         write_command(conn,"widget_add "..pageid.." "..pageid..".title title")
-        write_command(conn,"widget_set "..pageid.." "..pageid..".title \"".. pagetitle.."\"")
         write_command(conn,"widget_add "..pageid.." "..pageid..".max string")
         write_command(conn,"widget_add "..pageid.." "..pageid..".min string")
-        for k=1,width-def["pos"] do
+        for k = 3,height-1 do
+          write_command(conn,"widget_add "..pageid.." "..pageid..".place"..trim(tostring(k)).." string")
+        end
+        for k=1,width do
           write_command(conn,"widget_add "..pageid.." "..pageid..".bar"..trim(tostring(k)).." vbar")
         end
+        write_command(conn,"widget_set "..pageid.." "..pageid..".title \"".. pagetitle.."\"")
       end
     end
   end
@@ -197,7 +199,7 @@ function process_graphs()
       local vals = {}
       local maxval = -99999999
       local minval =  99999999
-      for k=width-def["pos"],1,-1 do
+      for k=width,1,-1 do
         if row then
           val = row["val"]
           row = cur:fetch ({}, "a")
@@ -209,19 +211,28 @@ function process_graphs()
         if val and (val < minval) then minval = val; end
       end          
       minval = math.floor(minval)
-      minvalstr = trim(tostring(minval))
+      local minvalstr = trim(tostring(minval))
       maxval = math.ceil(maxval)
-      maxvalstr = trim(tostring(maxval))
+      local maxvalstr = trim(tostring(maxval))
+      local len = math.max(string.len(minvalstr),string.len(maxvalstr))
       write_command(conn,"widget_set "..pageid.." "..pageid..".max "..trim(tostring(width-string.len(maxvalstr)+1)).." 2 "..maxvalstr)
+      for k = 3,height-1 do
+        write_command(conn,"widget_set "..pageid.." "..pageid..".place"..trim(tostring(k)).." "..trim(tostring(width-len+1)).." "..k.." \""..string.rep("-",len).."\"")
+      end
       write_command(conn,"widget_set "..pageid.." "..pageid..".min "..trim(tostring(width-string.len(minvalstr)+1)).." "..height.." "..minvalstr)
-      for k = 1,width-def["pos"] do
-        val = vals[k]
+      local m = width
+      for k = width-len,1,-1 do
+        val = vals[m]
         if val then
           h = math.floor(0.5+(val-minval)/(maxval-minval)*(height-1)*charheight)
         else
           h = 0
         end  
         write_command(conn,"widget_set "..pageid.." "..pageid..".bar"..trim(tostring(k)).." "..k.." "..height.." "..h)
+        m = m - 1
+      end
+      for k= m,1,-1 do
+        write_command(conn,"widget_set "..pageid.." "..pageid..".bar"..trim(tostring(k)).." 0 0 0")
       end
     end
   end