From c94678d57e8b0e52587b309b9b129805434044ad Mon Sep 17 00:00:00 2001
From: Mika Havela <mika.havela@gmail.com>
Date: Wed, 8 Jul 2009 09:50:09 +0000
Subject: List available graphs and display selected graph Still missing
 functionallity to create the needed table that holds information on how to
 create the graphics.

---
 rrdtool-model.lua | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'rrdtool-model.lua')

diff --git a/rrdtool-model.lua b/rrdtool-model.lua
index fa47e02..e0143ee 100644
--- a/rrdtool-model.lua
+++ b/rrdtool-model.lua
@@ -191,3 +191,45 @@ If you specify path, it should be " .. tostring(databases) .."/"
 
 	return configfile
 end
+
+function list_graphs()
+	local graphs = {}
+
+	--TODO: Read config-files and create a table of it.
+
+	return graphs
+end
+
+function view_graph(self, graph_grp, graph_id)
+	local general_settings = {
+	  filenameextention=".png",
+	  graph_width="800",
+	  }
+
+	local graphs = list_graphs()
+	local settings = graphs[tostring(graph_grp)]["value"][tonumber(self.clientdata.id)]
+	local filename = "/"..tostring(graph_grp).."_"..tostring(graph_id) .. 
+	  (settings.filenameextention or ".png")
+	settings.value = tostring(filename)
+
+	--TODO: Loop the defaultsettings and put it in the settings table if there is missing some information
+	
+	local cmd = "/usr/bin/rrdtool graph /usr/share/acf/www" .. tostring(filename) .. " "
+	for k,v in pairs(settings.option) do
+		if (v) and (#v > 0) then
+			cmd = cmd .. "--".. format.escapespecialcharacters(k) .. " " ..
+			 format.escapespecialcharacters(v) .. " "
+		end 
+	end
+	cmd = cmd .. tostring(settings.variables)
+	settings.cmd_query = cmd
+	local f = io.popen( tostring(cmd) .. " 2>&1" )
+	settings.cmd_result = f:read("*a") or ""
+	f:close()
+
+	-- Display the image in it's original size (if possible)	
+	settings.graph = {}
+	settings.graph.width,settings.graph.height = string.match(settings.cmd_result, "^(%d+)x(%d+)")
+
+	return settings 
+end
-- 
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