#309 moved monitor block size to ppm and fixed size estimation for monitor requirements

scada-common/ppm.lua

@@ -421,4 +421,17 @@ function ppm.get_monitor_list()
     return list
 end
 
+-- HELPER FUNCTIONS
+
+-- get the block size of a monitor given its width and height <b>at a text scale of 0.5</b>
+---@nodiscard
+---@param w integer character width
+---@param h integer character width
+---@return integer block_width, integer block_height 
+function ppm.monitor_block_size(w, h)
+    local width = math.floor((w - 15) / 21) + 1
+    local height = math.floor((h - 10) / 14) + 1
+    return width, height
+end
+
 return ppm