tgui::FileDialogIconLoader Class Reference

Public Member Functions
virtual	~FileDialogIconLoader ()=default
	Default virtual destructor.
virtual bool	update ()
	Called every frame to check if the background thread has finished. More...
virtual bool	supportsSystemIcons () const
	Returns whether this icon loader does something or whether its functions are no-ops. More...
virtual bool	hasGenericIcons () const
	Returns whether generic icons (one folder and one file icon) are available. More...
virtual Texture	getGenericFileIcon (const Filesystem::FileInfo &file)
	Returns the generic file/folder icon, which is used until the file-specific icons are finished loading. More...
virtual void	requestFileIcons (const std::vector< Filesystem::FileInfo > &files)
	Starts a thread to load the icons for all given files. More...
virtual std::vector< Texture >	retrieveFileIcons ()
	Access the file icons that where loaded in the thread that was started in requestFileIcons() More...

Static Public Member Functions
static std::shared_ptr< FileDialogIconLoader >	createInstance ()
	Returns the shared instance to the loader (and creates it if it didn't exist yet). More...

Protected Member Functions
	FileDialogIconLoader ()=default
	Protected constructor, the createInstance() function should be used to construct the icon loader.

Member Function Documentation

createInstance()

static std::shared_ptr< FileDialogIconLoader > tgui::FileDialogIconLoader::createInstance ( )

static

Returns the shared instance to the loader (and creates it if it didn't exist yet).

Returns

Shared icon loader instance

The caller of this function should call incrementReferenceCount() directly after the first call to this function and call decrementReferenceCount() when it no longer needs the icon loader. The caller can call this function multiple times inbetween the incrementReferenceCount and decrementReferenceCount calls.

getGenericFileIcon()

virtual Texture tgui::FileDialogIconLoader::getGenericFileIcon ( const Filesystem::FileInfo &  file )

virtual

Returns the generic file/folder icon, which is used until the file-specific icons are finished loading.

Parameters

file	Information about the file, used to check if a folder or file icon needs to be returned

Returns

File or folder icon

hasGenericIcons()

virtual bool tgui::FileDialogIconLoader::hasGenericIcons ( ) const

virtual

Returns whether generic icons (one folder and one file icon) are available.

Returns true when a folder and file icon can be returned

Generic icons can be shows while waiting for the per-file icons to finish loading

requestFileIcons()

virtual void tgui::FileDialogIconLoader::requestFileIcons ( const std::vector< Filesystem::FileInfo > &  files )

virtual

Starts a thread to load the icons for all given files.

Parameters

files

List of files for which icons should be loaded

If the thread was still running then it will be cancelled. Once the thread finished, the update() function will return true and retrieveFileIcons() should be called.

retrieveFileIcons()

virtual std::vector< Texture > tgui::FileDialogIconLoader::retrieveFileIcons ( )

virtual

Access the file icons that where loaded in the thread that was started in requestFileIcons()

Returns

Loaded icons for all files passed to requestFileIcons

supportsSystemIcons()

virtual bool tgui::FileDialogIconLoader::supportsSystemIcons ( ) const

virtual

Returns whether this icon loader does something or whether its functions are no-ops.

Returns

True if the platform supports loading icons

update()

virtual bool tgui::FileDialogIconLoader::update ( )

virtual

Called every frame to check if the background thread has finished.

Returns

Whether icons are available and retrieveFileIcons can be called

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The documentation for this class was generated from the following file:

• include/TGUI/FileDialogIconLoader.hpp