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An icon source is a class that loads an icon of any type. More...
#include <FXIconSource.h>
Public Member Functions | |
| virtual FXIcon * | iconFromType (FXApp *app, const FXString &type) const |
| Determine icon type from extension string, return icon of that type. More... | |
| virtual FXIcon * | iconFromStream (FXApp *app, FXStream &store) const |
| Determine icon type from header bytes in stream, return icon of that type. More... | |
| virtual FXIcon * | loadIconFile (FXApp *app, const FXString &filename, const FXString &type=FXString::null) const |
| Load an icon from the file filename. More... | |
| virtual FXIcon * | loadIconData (FXApp *app, const FXuchar *pixels, const FXString &type=FXString::null) const |
| Load an icon of a given type (e.g. More... | |
| virtual FXIcon * | loadIconStream (FXApp *app, FXStream &store, const FXString &type=FXString::null) const |
| Load an icon of a given type (e.g. More... | |
| virtual FXImage * | imageFromType (FXApp *app, const FXString &type) const |
| Determine image type from extension string, return image of that type. More... | |
| virtual FXImage * | imageFromStream (FXApp *app, FXStream &store) const |
| Determine image type from header bytes in stream, return image of that type. More... | |
| virtual FXImage * | loadImageFile (FXApp *app, const FXString &filename, const FXString &type=FXString::null) const |
| Load an image from the file filename. More... | |
| virtual FXImage * | loadImageData (FXApp *app, const FXuchar *pixels, const FXString &type=FXString::null) const |
| Load an image of a given type (e.g. More... | |
| virtual FXImage * | loadImageStream (FXApp *app, FXStream &store, const FXString &type=FXString::null) const |
| Load an image of a given type (e.g. More... | |
| virtual FXIcon * | loadScaledIconFile (FXApp *app, const FXString &filename, FXint size=32, FXint qual=0, const FXString &type=FXString::null) const |
| Load an icon from filename and scale it such that its dimensions does not exceed given size. More... | |
| virtual FXIcon * | loadScaledIconData (FXApp *app, const FXuchar *pixels, FXint size=32, FXint qual=0, const FXString &type=FXString::null) const |
| Load an icon from pixels and scale it such that its dimensions does not exceed given size. | |
| virtual FXIcon * | loadScaledIconStream (FXApp *app, FXStream &store, FXint size=32, FXint qual=0, const FXString &type=FXString::null) const |
| Load icon from stream and scale it such that its dimensions does not exceed given size. | |
| virtual FXImage * | loadScaledImageFile (FXApp *app, const FXString &filename, FXint size=32, FXint qual=0, const FXString &type=FXString::null) const |
| Load image from filename and scale it such that its dimensions does not exceed given size. More... | |
| virtual FXImage * | loadScaledImageData (FXApp *app, const FXuchar *pixels, FXint size=32, FXint qual=0, const FXString &type=FXString::null) const |
| Load image and scale it such that its dimensions does not exceed given size. | |
| virtual FXImage * | loadScaledImageStream (FXApp *app, FXStream &store, FXint size=32, FXint qual=0, const FXString &type=FXString::null) const |
| Load image and scale it such that its dimensions does not exceed given size. | |
 Public Member Functions inherited from FX::FXObject | |
| const FXchar * | getClassName () const |
| Get class name of some object. | |
| FXbool | isMemberOf (const FXMetaClass *metaclass) const |
| Check if object is member of metaclass. | |
| virtual long | tryHandle (FXObject *sender, FXSelector sel, void *ptr) |
| Try handle message safely, catching certain exceptions. | |
| virtual long | onDefault (FXObject *, FXSelector, void *) |
| Called for unhandled messages. | |
| virtual void | save (FXStream &store) const |
| Save object to stream. | |
| virtual void | load (FXStream &store) |
| Load object from stream. | |
| virtual | ~FXObject () |
| Virtual destructor. | |
Static Public Attributes | |
| static FXIconSource | defaultIconSource |
| Default icon source provides icons and images for all types built into the FOX library at compile time. | |
An icon source is a class that loads an icon of any type.
It exists purely for convenience, to make loading icons simpler by concentrating the knowledge of the supported icon formats into a single place. Needless to say, this class is subclassable, allowing users to add additional icon types and make them available to all widgets which deal with icons. When icons are loaded, they are NOT created (realized) yet; this allows users to manipulate the pixel data prior to realizing the icons. Image/icon formats can be determined by file extension type, or by their contents. The latter method may be less reliable for some types of file formats which don't have well-defined file-header signatures. File signature recognition is always attempted when file extension method fails, as a fallback method.
Determine icon type from header bytes in stream, return icon of that type.
Rewind the stream to the start. Return NULL if no match.
Determine icon type from extension string, return icon of that type.
Return NULL if no match.
Determine image type from header bytes in stream, return image of that type.
Rewind the stream to the start. Return NULL if no match.
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Determine image type from extension string, return image of that type.
Return NULL if no match.
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Load an icon of a given type (e.g.
"gif") from reswrapped data. Returns NULL if there's some error loading the icon. [The optional parameter is actually mandatory at the time of this writing; future versions will attempt to inspect the first few bytes of the stream to divine the icon format if the parameter is omitted].
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Load an icon from the file filename.
By default, the file extension is stripped and used as the icon type; if an explicit icon type is forced, then that type is used and the extension is ignored. For example, loadIcon("icon","gif") will try to load a CompuServe GIF file, since the filename does not give any clue as to the type of the icon.
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Load an icon of a given type (e.g.
"gif") from an already open stream. Returns NULL if there's some error loading the icon. [The optional parameter is actually mandatory at the time of this writing; future versions will attempt to inspect the first few bytes of the stream to divine the icon format if the parameter is omitted].
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Load an image of a given type (e.g.
"gif") from reswrapped data. Returns NULL if there's some error loading the icon. [The optional parameter is actually mandatory at the time of this writing; future versions will attempt to inspect the first few bytes of the stream to divine the icon format if the parameter is omitted].
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Load an image from the file filename.
By default, the file extension is stripped and used as the image type; if an explicit image type is forced, then that type is used and the extension is ignored. For example, loadImage("image","gif") will try to load a CompuServe GIF file, since the filename does not give any clue as to the type of the image.
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Load an image of a given type (e.g.
"gif") from an already open stream. Returns NULL if there's some error loading the image. [The optional parameter is actually mandatory at the time of this writing; future versions will attempt to inspect the first few bytes of the stream to divine the image format if the parameter is omitted].
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Load an icon from filename and scale it such that its dimensions does not exceed given size.
The icon type is determined from the filename extension unless explicitly forced.
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virtual |
Load image from filename and scale it such that its dimensions does not exceed given size.
The image type is determined from the filename extension unless explicitly forced.
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Copyright © 1997-2022 Jeroen van der Zijp
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