virtualx-engine/doc/classes/ConfigFile.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="ConfigFile" inherits="Reference" category="Core" version="3.0-beta">
	<brief_description>
		Helper class to handle INI-style files.
	</brief_description>
	<description>
		This helper class can be used to store [Variant] values on the filesystem using INI-style formatting. The stored values are indentified by a section and a key:
		[codeblock]
		[section]
		some_key=42
		string_example="Hello World!"
		a_vector=Vector3( 1, 0, 2 )
		[/codeblock]
		The stored data can be saved to or parsed from a file, though ConfigFile objects can also be used directly without accessing the filesystem.
		The following example shows how to parse an INI-style file from the system, read its contents and store new values in it:
		[codeblock]
		var config = ConfigFile.new()
		var err = config.load("user://settings.cfg")
		if err == OK: # if not, something went wrong with the file loading
		    # Look for the display/width pair, and default to 1024 if missing
		    var screen_width = get_value("display", "width", 1024)
		    # Store a variable if and only if it hasn't been defined yet
		    if not config.has_section_key("audio", "mute"):
		        config.set_value("audio", "mute", false)
		    # Save the changes by overwriting the previous file
		    config.save("user://settings.cfg")
		[/codeblock]
	</description>
	<tutorials>
	</tutorials>
	<demos>
	</demos>
	<methods>
		<method name="erase_section">
			<return type="void">
			</return>
			<argument index="0" name="section" type="String">
			</argument>
			<description>
				Deletes the specified section along with all the key-value pairs inside.
			</description>
		</method>
		<method name="get_section_keys" qualifiers="const">
			<return type="PoolStringArray">
			</return>
			<argument index="0" name="section" type="String">
			</argument>
			<description>
				Returns an array of all defined key identifiers in the specified section.
			</description>
		</method>
		<method name="get_sections" qualifiers="const">
			<return type="PoolStringArray">
			</return>
			<description>
				Returns an array of all defined section identifiers.
			</description>
		</method>
		<method name="get_value" qualifiers="const">
			<return type="Variant">
			</return>
			<argument index="0" name="section" type="String">
			</argument>
			<argument index="1" name="key" type="String">
			</argument>
			<argument index="2" name="default" type="Variant" default="null">
			</argument>
			<description>
				Returns the current value for the specified section and key. If the section and/or the key do not exist, the method returns the value of the optional [code]default[/code] argument, or [code]null[/code] if it is omitted.
			</description>
		</method>
		<method name="has_section" qualifiers="const">
			<return type="bool">
			</return>
			<argument index="0" name="section" type="String">
			</argument>
			<description>
				Returns [code]true[/code] if the specified section exists.
			</description>
		</method>
		<method name="has_section_key" qualifiers="const">
			<return type="bool">
			</return>
			<argument index="0" name="section" type="String">
			</argument>
			<argument index="1" name="key" type="String">
			</argument>
			<description>
				Returns [code]true[/code] if the specified section-key pair exists.
			</description>
		</method>
		<method name="load">
			<return type="int" enum="Error">
			</return>
			<argument index="0" name="path" type="String">
			</argument>
			<description>
				Loads the config file specified as a parameter. The file's contents are parsed and loaded in the ConfigFile object which the method was called on. Returns one of the [code]OK[/code], [code]FAILED[/code] or [code]ERR_*[/code] constants listed in [@GlobalScope]. If the load was successful, the return value is [code]OK[/code].
			</description>
		</method>
		<method name="save">
			<return type="int" enum="Error">
			</return>
			<argument index="0" name="path" type="String">
			</argument>
			<description>
				Saves the contents of the ConfigFile object to the file specified as a parameter. The output file uses an INI-style structure. Returns one of the [code]OK[/code], [code]FAILED[/code] or [code]ERR_*[/code] constants listed in [@GlobalScope]. If the load was successful, the return value is [code]OK[/code].
			</description>
		</method>
		<method name="set_value">
			<return type="void">
			</return>
			<argument index="0" name="section" type="String">
			</argument>
			<argument index="1" name="key" type="String">
			</argument>
			<argument index="2" name="value" type="Variant">
			</argument>
			<description>
				Assigns a value to the specified key of the the specified section. If the section and/or the key do not exist, they are created. Passing a [code]null[/code] value deletes the specified key if it exists, and deletes the section if it ends up empty once the key has been removed.
			</description>
		</method>
	</methods>
	<constants>
	</constants>
</class>