kc3-lang/SDL/premake/util/sdl_gen_config.lua

Branch : - branch - v2.28 - tag -

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  Commit

• Author : Pierre-Loup A. Griffais
  Date : 2014-09-11 19:24:42
  Hash : 24c86b55
  Message : [X11] Reconcile logical keyboard state with physical state on FocusIn since the window system doesn't do it for us like other platforms. This prevents sticky keys and missed keys when going in and out of focus, for example Alt would appear to stick if switching away from an SDL app with Alt-Tab and had to be pressed again. CR: Sam

• premake/util/sdl_gen_config.lua

• -- Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
  --
  -- This software is provided 'as-is', without any express or implied
  -- warranty.  In no event will the authors be held liable for any damages
  -- arising from the use of this software.
  --
  -- Permission is granted to anyone to use this software for any purpose,
  -- including commercial applications, and to alter it and redistribute it
  -- freely.
  --
  -- Meta-build system using premake created and maintained by
  -- Benjamin Henning <b.henning@digipen.edu>
  
  --[[
  sdl_gen_config.lua
  
  	Given a series of set configuration values from the project definitions,
  	this file contains a series of functions that generate valid preprocessor
  	definitions to enable or disable various features of the SDL2 library. These
  	definitions are pasted into a template SDL config header file, which is then
  	saved in the local directory and referenced to in generated project files.
  
  	This file depends on sdl_file.lua.
  ]]
  
  -- The line that must exist in the template file in order to properly paste
  -- the generated definitions.
  local searchKey = "/%* Paste generated code here %*/\n"
  
  local configFile, templateFileContents
  local insertLocation
  
  -- This function begins config header generation given the name of the generated
  -- file and the name of the template file to use.
  function startGeneration(file, template)
  	configFile = fileopen(file, "wt")
  	templateFileContents = readfile(template, "rt")
  	insertLocation = templateFileContents:find(searchKey)
  	if insertLocation then
  		configFile:write(templateFileContents:sub(1, insertLocation - 1))
  	end
  end
  
  -- Adds a table of configuration values to the generated file. Each
  -- configuration line is wrapped around a preprocessor definition check, so they
  -- can be manually overwritten by the developer if necessary. The definition
  -- pastes string versions of both the key and the value on the line, where
  -- either is allowed to be empty. That means the table stores key-value pairs.
  function addConfig(tbl)
  	-- if no insert location, don't paste anything
  	if not insertLocation then return end
  	for k,v in pairs(tbl) do
  		configFile:print(0, "#ifndef " .. k)
  		configFile:print(0, "#define " .. tostring(k) .. " " .. tostring(v))
  		configFile:print(0, "#endif")
  	end
  end
  
  -- Finishes the generation and writes the remains of the template file into the
  -- generated config file.
  function endGeneration()
  	if insertLocation then
  		configFile:write(templateFileContents:sub(insertLocation + #searchKey - 2))
  	else -- write entire file since nothing is being pasted
  		configFile:write(templateFileContents)
  	end
  	configFile:close()
  end