/////////////////////////////////////////////////////////////////////////////
// Name: bitmap.h
-// Purpose: documentation for wxBitmapHandler class
+// Purpose: interface of wxBitmap* classes
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
+
+/**
+ In wxBitmap and wxBitmapHandler context this value means: "use the screen depth".
+*/
+#define wxBITMAP_SCREEN_DEPTH (-1)
+
/**
@class wxBitmapHandler
@wxheader{bitmap.h}
- Overview
-
- This is the base class for implementing bitmap file loading/saving, and bitmap
- creation from data.
+ This is the base class for implementing bitmap file loading/saving, and
+ bitmap creation from data.
It is used within wxBitmap and is not normally seen by the application.
If you wish to extend the capabilities of wxBitmap, derive a class from
- wxBitmapHandler
- and add the handler using wxBitmap::AddHandler in your
+ wxBitmapHandler and add the handler using wxBitmap::AddHandler() in your
application initialisation.
@library{wxcore}
- @category{FIXME}
+ @category{misc}
- @seealso
- wxBitmap, wxIcon, wxCursor
+ @see @ref overview_bitmap, wxBitmap, wxIcon, wxCursor
*/
class wxBitmapHandler : public wxObject
{
public:
/**
- Default constructor. In your own default constructor, initialise the members
- m_name, m_extension and m_type.
+ Default constructor.
+
+ In your own default constructor, initialise the members m_name,
+ m_extension and m_type.
*/
wxBitmapHandler();
/**
Destroys the wxBitmapHandler object.
*/
- ~wxBitmapHandler();
+ virtual ~wxBitmapHandler();
/**
- Creates a bitmap from the given data, which can be of arbitrary type. The
- wxBitmap object @e bitmap is
- manipulated by this function.
-
+ Creates a bitmap from the given data, which can be of arbitrary type.
+ The wxBitmap object @a bitmap is manipulated by this function.
+
@param bitmap
- The wxBitmap object.
-
+ The wxBitmap object.
@param width
- The width of the bitmap in pixels.
-
+ The width of the bitmap in pixels.
@param height
- The height of the bitmap in pixels.
-
+ The height of the bitmap in pixels.
@param depth
- The depth of the bitmap in pixels. If this is -1, the screen depth is used.
-
+ The depth of the bitmap in pixels.
+ If this is ::wxBITMAP_SCREEN_DEPTH, the screen depth is used.
@param data
- Data whose type depends on the value of type.
-
+ Data whose type depends on the value of type.
@param type
- A bitmap type identifier - see wxBitmapHandler() for a list
- of possible values.
-
- @returns @true if the call succeeded, @false otherwise (the default).
+ A bitmap type identifier - see ::wxBitmapType for a list
+ of possible values.
+
+ @return @true if the call succeeded, @false otherwise (the default).
*/
- virtual bool Create(wxBitmap* bitmap, const void* data, int type,
- int width,
- int height,
- int depth = -1);
+ virtual bool Create(wxBitmap* bitmap, const void* data, wxBitmapType type,
+ int width, int height, int depth = 1);
/**
Gets the file extension associated with this handler.
*/
- const wxString GetExtension();
+ const wxString& GetExtension() const;
/**
Gets the name of this handler.
*/
- const wxString GetName();
+ const wxString& GetName() const;
/**
Gets the bitmap type associated with this handler.
*/
- long GetType();
+ wxBitmapType GetType() const;
/**
- Loads a bitmap from a file or resource, putting the resulting data into @e
- bitmap.
-
+ Loads a bitmap from a file or resource, putting the resulting data into
+ @a bitmap.
+
@param bitmap
- The bitmap object which is to be affected by this operation.
-
+ The bitmap object which is to be affected by this operation.
@param name
- Either a filename or a Windows resource name.
- The meaning of name is determined by the type parameter.
-
+ Either a filename or a Windows resource name.
+ The meaning of name is determined by the type parameter.
@param type
- See wxBitmap::wxBitmap for values this can take.
-
- @returns @true if the operation succeeded, @false otherwise.
-
- @sa wxBitmap::LoadFile, wxBitmap::SaveFile, SaveFile()
+ See ::wxBitmapType for values this can take.
+ @param desiredWidth
+ The desired width for the loaded bitmap.
+ @param desiredHeight
+ The desired height for the loaded bitmap.
+
+ @return @true if the operation succeeded, @false otherwise.
+
+ @see wxBitmap::LoadFile, wxBitmap::SaveFile, SaveFile()
*/
- bool LoadFile(wxBitmap* bitmap, const wxString& name, long type);
+ virtual bool LoadFile(wxBitmap* bitmap, const wxString& name, wxBitmapType type,
+ int desiredWidth, int desiredHeight);
/**
Saves a bitmap in the named file.
-
+
@param bitmap
- The bitmap object which is to be affected by this operation.
-
+ The bitmap object which is to be affected by this operation.
@param name
- A filename. The meaning of name is determined by the type parameter.
-
+ A filename. The meaning of name is determined by the type parameter.
@param type
- See wxBitmap::wxBitmap for values this can take.
-
+ See ::wxBitmapType for values this can take.
@param palette
- An optional palette used for saving the bitmap.
-
- @returns @true if the operation succeeded, @false otherwise.
-
- @sa wxBitmap::LoadFile, wxBitmap::SaveFile, LoadFile()
+ An optional palette used for saving the bitmap.
+
+ @return @true if the operation succeeded, @false otherwise.
+
+ @see wxBitmap::LoadFile, wxBitmap::SaveFile, LoadFile()
*/
- bool SaveFile(wxBitmap* bitmap, const wxString& name, int type,
- wxPalette* palette = @NULL);
+ virtual bool SaveFile(const wxBitmap* bitmap, const wxString& name, wxBitmapType type,
+ const wxPalette* palette = NULL) const;
/**
Sets the handler extension.
-
+
@param extension
- Handler extension.
+ Handler extension.
*/
void SetExtension(const wxString& extension);
/**
Sets the handler name.
-
+
@param name
- Handler name.
+ Handler name.
*/
void SetName(const wxString& name);
/**
Sets the handler type.
-
- @param name
- Handler type.
+
+ @param type
+ Handler type.
*/
- void SetType(long type);
+ void SetType(wxBitmapType type);
};
This class encapsulates the concept of a platform-dependent bitmap,
either monochrome or colour or colour with alpha channel support.
+
+ If you need direct access the bitmap data instead going through
+ drawing to it using wxMemoryDC you need to use the wxPixelData
+ class (either wxNativePixelData for RGB bitmaps or wxAlphaPixelData
+ for bitmaps with an additionaly alpha channel).
+
+ @note
+ Many wxBitmap functions take a @e type parameter, which is a value of the
+ ::wxBitmapType enumeration.
+ The validity of those values depends however on the platform where your program
+ is running and from the wxWidgets configuration.
+ If all possible wxWidgets settings are used, the Windows platform supports BMP file,
+ BMP resource, XPM data, and XPM.
+ Under wxGTK, the available formats are BMP file, XPM data, XPM file, and PNG file.
+ Under wxMotif, the available formats are XBM data, XBM file, XPM data, XPM file.
+ In addition, wxBitmap can load and save all formats that wxImage; see wxImage for
+ more info. Of course, you must have wxImage handlers loaded.
@library{wxcore}
@category{gdi}
@stdobjects
- Objects:
- wxNullBitmap
+ ::wxNullBitmap
- @seealso
- @ref overview_wxbitmapoverview "wxBitmap overview", @ref
- overview_supportedbitmapformats "supported bitmap file formats", wxDC::Blit, wxIcon, wxCursor, wxBitmap, wxMemoryDC
+ @see @ref overview_bitmap, @ref overview_bitmap_supportedformats,
+ wxDC::Blit, wxIcon, wxCursor, wxMemoryDC, wxImage, wxPixelData
*/
class wxBitmap : public wxGDIObject
{
public:
- //@{
/**
- Creates bitmap object from the image. This has to be done
- to actually display an image as you cannot draw an image directly on a window.
- The resulting bitmap will use the provided colour depth (or that of the
- current system if depth is -1) which entails that a colour reduction has
- to take place.
-
- When in 8-bit mode (PseudoColour mode), the GTK port will use a color cube
- created
- on program start-up to look up colors. This ensures a very fast conversion, but
- the image quality won't be perfect (and could be better for photo images using
- more
- sophisticated dithering algorithms).
-
- On Windows, if there is a palette present (set with SetPalette), it will be
- used when
- creating the wxBitmap (most useful in 8-bit display mode). On other platforms,
- the palette is currently ignored.
-
+ Default constructor.
+
+ Constructs a bitmap object with no data; an assignment or another member
+ function such as Create() or LoadFile() must be called subsequently.
+ */
+ wxBitmap();
+
+ /**
+ Copy constructor, uses @ref overview_refcount "reference counting".
+ To make a real copy, you can use:
+
+ @code
+ wxBitmap newBitmap = oldBitmap.GetSubBitmap(
+ wxRect(0, 0, oldBitmap.GetWidth(), oldBitmap.GetHeight()));
+ @endcode
+ */
+ wxBitmap(const wxBitmap& bitmap);
+
+
+ /*
+ Creates a bitmap from the given @a data which is interpreted in
+ platform-dependent manner.
+
+ @param data
+ Specifies the bitmap data in a platform-dependent format.
+ @param type
+ May be one of the ::wxBitmapType values and indicates which type of
+ bitmap does @a data contains. See the note in the class
+ detailed description.
+ @param width
+ Specifies the width of the bitmap.
+ @param height
+ Specifies the height of the bitmap.
+ @param depth
+ Specifies the depth of the bitmap.
+ If this is omitted, the display depth of the screen is used.
+ wxBitmap(const void* data, int type, int width, int height, int depth = -1);
+
+
+ NOTE: this ctor is not implemented by all ports, is somewhat useless
+ without further description of the "data" supported formats and
+ uses 'int type' instead of wxBitmapType, so don't document it.
+ */
+
+ /**
+ Creates a bitmap from the given array @a bits.
+ You should only use this function for monochrome bitmaps (depth 1) in
+ portable programs: in this case the bits parameter should contain an XBM image.
+
+ For other bit depths, the behaviour is platform dependent: under Windows,
+ the data is passed without any changes to the underlying CreateBitmap() API.
+ Under other platforms, only monochrome bitmaps may be created using this
+ constructor and wxImage should be used for creating colour bitmaps from
+ static data.
+
@param bits
- Specifies an array of pixel values.
-
+ Specifies an array of pixel values.
@param width
- Specifies the width of the bitmap.
-
+ Specifies the width of the bitmap.
@param height
- Specifies the height of the bitmap.
-
+ Specifies the height of the bitmap.
@param depth
- Specifies the depth of the bitmap. If this is omitted, the display depth of the
- screen is used.
-
+ Specifies the depth of the bitmap.
+ If this is omitted, then a value of 1 (monochrome bitmap) is used.
+ */
+ wxBitmap(const char bits[], int width, int height, int depth = 1);
+
+ /**
+ Creates a new bitmap. A depth of ::wxBITMAP_SCREEN_DEPTH indicates the
+ depth of the current screen or visual.
+
+ Some platforms only support 1 for monochrome and ::wxBITMAP_SCREEN_DEPTH for
+ the current colour setting.
+
+ A depth of 32 including an alpha channel is supported under MSW, Mac and GTK+.
+ */
+ wxBitmap(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
+
+ /**
+ Creates a bitmap from XPM data.
+ */
+ wxBitmap(const char* const* bits);
+
+ /**
+ Loads a bitmap from a file or resource.
+
@param name
- This can refer to a resource name under MS Windows, or a filename under MS
- Windows and X.
- Its meaning is determined by the type parameter.
-
+ This can refer to a resource name or a filename under MS Windows and X.
+ Its meaning is determined by the @a type parameter.
@param type
- May be one of the following:
-
-
- wxBITMAP_TYPE_BMP
-
-
- Load a Windows bitmap file.
-
- wxBITMAP_TYPE_BMP_RESOURCE
-
-
- Load a Windows bitmap resource from the executable. Windows only.
-
- wxBITMAP_TYPE_PICT_RESOURCE
-
-
- Load a PICT image resource from the executable. Mac OS only.
-
- wxBITMAP_TYPE_GIF
-
-
- Load a GIF bitmap file.
-
- wxBITMAP_TYPE_XBM
-
-
- Load an X bitmap file.
-
- wxBITMAP_TYPE_XPM
-
-
- Load an XPM bitmap file.
-
- The validity of these flags depends on the platform and wxWidgets configuration.
- If all possible wxWidgets settings are used, the Windows platform supports BMP
- file, BMP resource,
- XPM data, and XPM. Under wxGTK, the available formats are BMP file, XPM data,
- XPM file, and PNG file.
- Under wxMotif, the available formats are XBM data, XBM file, XPM data, XPM file.
-
- In addition, wxBitmap can read all formats that wxImage can, which currently
- include
- wxBITMAP_TYPE_JPEG, wxBITMAP_TYPE_TIF, wxBITMAP_TYPE_PNG, wxBITMAP_TYPE_GIF,
- wxBITMAP_TYPE_PCX,
- and wxBITMAP_TYPE_PNM. Of course, you must have wxImage handlers loaded.
-
+ May be one of the ::wxBitmapType values and indicates which type of
+ bitmap should be loaded. See the note in the class detailed description.
+
+ @see LoadFile()
+ */
+ wxBitmap(const wxString& name, wxBitmapType type = wxBITMAP_TYPE_XPM);
+
+ /**
+ Creates this bitmap object from the given image.
+ This has to be done to actually display an image as you cannot draw an
+ image directly on a window.
+
+ The resulting bitmap will use the provided colour depth (or that of the
+ current system if depth is ::wxBITMAP_SCREEN_DEPTH) which entails that a
+ colour reduction may take place.
+
+ When in 8-bit mode (PseudoColour mode), the GTK port will use a color cube
+ created on program start-up to look up colors. This ensures a very fast conversion,
+ but the image quality won't be perfect (and could be better for photo images using
+ more sophisticated dithering algorithms).
+
+ On Windows, if there is a palette present (set with SetPalette), it will be
+ used when creating the wxBitmap (most useful in 8-bit display mode).
+ On other platforms, the palette is currently ignored.
+
@param img
- Platform-independent wxImage object.
-
- @remarks The first form constructs a bitmap object with no data; an
- assignment or another member function such as Create
- or LoadFile must be called subsequently.
-
- @sa LoadFile()
+ Platform-independent wxImage object.
+ @param depth
+ Specifies the depth of the bitmap.
+ If this is omitted, the display depth of the screen is used.
*/
- wxBitmap();
- wxBitmap(const wxBitmap& bitmap);
- wxBitmap(const void* data, int type, int width, int height,
- int depth = -1);
- wxBitmap(const char bits[], int width, int height,
- int depth = 1);
- wxBitmap(int width, int height, int depth = -1);
- wxBitmap(const char* const* bits);
- wxBitmap(const wxString& name, long type);
- wxBitmap(const wxImage& img, int depth = -1);
- //@}
+ wxBitmap(const wxImage& img, int depth = wxBITMAP_SCREEN_DEPTH);
/**
Destructor.
- See @ref overview_refcountdestruct "reference-counted object destruction" for
- more info.
-
+ See @ref overview_refcount_destruct for more info.
+
If the application omits to delete the bitmap explicitly, the bitmap will be
destroyed automatically by wxWidgets when the application exits.
-
+
+ @warning
Do not delete a bitmap that is selected into a memory device context.
*/
- ~wxBitmap();
+ virtual ~wxBitmap();
/**
Adds a handler to the end of the static list of format handlers.
-
+
@param handler
- A new bitmap format handler object. There is usually only one instance
- of a given handler class in an application session.
-
- @sa wxBitmapHandler
+ A new bitmap format handler object. There is usually only one instance
+ of a given handler class in an application session.
+
+ @see wxBitmapHandler
*/
static void AddHandler(wxBitmapHandler* handler);
/**
Deletes all bitmap handlers.
-
This function is called by wxWidgets on exit.
*/
static void CleanUpHandlers();
mask information so that bitmaps and images can be converted back
and forth without loss in that respect.
*/
- wxImage ConvertToImage();
+ virtual wxImage ConvertToImage() const;
/**
Creates the bitmap from an icon.
*/
- bool CopyFromIcon(const wxIcon& icon);
+ virtual bool CopyFromIcon(const wxIcon& icon);
- //@{
/**
+ Creates a fresh bitmap.
+ If the final argument is omitted, the display depth of the screen is used.
+
+ This overload works on all platforms.
+ */
+ virtual bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
+
+ /*
Creates a bitmap from the given data, which can be of arbitrary type.
-
+
+ @param data
+ Data whose type depends on the value of type.
+ @param type
+ A bitmap type identifier; see ::wxBitmapType for the list of values.
+ See the note in the class detailed description for more info.
@param width
- The width of the bitmap in pixels.
-
+ The width of the bitmap in pixels.
@param height
- The height of the bitmap in pixels.
-
+ The height of the bitmap in pixels.
@param depth
- The depth of the bitmap in pixels. If this is -1, the screen depth is used.
-
- @param data
- Data whose type depends on the value of type.
-
- @param type
- A bitmap type identifier - see wxBitmap() for a list
- of possible values.
-
- @returns @true if the call succeeded, @false otherwise.
-
- @remarks The first form works on all platforms. The portability of the
- second form depends on the type of data.
-
- @sa wxBitmap()
- */
- virtual bool Create(int width, int height, int depth = -1);
+ The depth of the bitmap in pixels. If this is -1, the screen depth is used.
+
+ @return @true if the call succeeded, @false otherwise.
+
+ This overload depends on the @a type of data.
+
virtual bool Create(const void* data, int type, int width,
- int height,
- int depth = -1);
- //@}
+ int height, int depth = -1);
+
+ NOTE: leave this undoc for the same reason of the relative ctor.
+ */
- //@{
/**
- Finds the handler associated with the given bitmap type.
-
- @param name
- The handler name.
-
+ Finds the handler with the given @a name.
+
+ @return A pointer to the handler if found, @NULL otherwise.
+ */
+ static wxBitmapHandler* FindHandler(const wxString& name);
+
+ /**
+ Finds the handler associated with the given @a extension and @a type.
+
@param extension
- The file extension, such as "bmp".
-
+ The file extension, such as "bmp" (without the dot).
@param bitmapType
- The bitmap type, such as wxBITMAP_TYPE_BMP.
-
- @returns A pointer to the handler if found, @NULL otherwise.
-
- @sa wxBitmapHandler
+ The bitmap type managed by the handler, see ::wxBitmapType.
+
+ @return A pointer to the handler if found, @NULL otherwise.
*/
- static wxBitmapHandler* FindHandler(const wxString& name);
static wxBitmapHandler* FindHandler(const wxString& extension,
wxBitmapType bitmapType);
+
+ /**
+ Finds the handler associated with the given bitmap type.
+
+ @param bitmapType
+ The bitmap type managed by the handler, see ::wxBitmapType.
+
+ @return A pointer to the handler if found, @NULL otherwise.
+
+ @see wxBitmapHandler
+ */
+
static wxBitmapHandler* FindHandler(wxBitmapType bitmapType);
- //@}
/**
- Gets the colour depth of the bitmap. A value of 1 indicates a
- monochrome bitmap.
+ Gets the colour depth of the bitmap.
+ A value of 1 indicates a monochrome bitmap.
*/
- int GetDepth();
+ virtual int GetDepth() const;
/**
Returns the static list of bitmap format handlers.
-
- @sa wxBitmapHandler
+
+ @see wxBitmapHandler
*/
static wxList GetHandlers();
/**
Gets the height of the bitmap in pixels.
*/
- int GetHeight();
+ virtual int GetHeight() const;
/**
Gets the associated mask (if any) which may have been loaded from a file
or set for the bitmap.
-
- @sa SetMask(), wxMask
+
+ @see SetMask(), wxMask
*/
- wxMask* GetMask();
+ virtual wxMask* GetMask() const;
/**
Gets the associated palette (if any) which may have been loaded from a file
or set for the bitmap.
-
- @sa wxPalette
+
+ @see wxPalette
*/
- wxPalette* GetPalette();
+ virtual wxPalette* GetPalette() const;
/**
Returns a sub bitmap of the current one as long as the rect belongs entirely to
the bitmap. This function preserves bit depth and mask information.
*/
- wxBitmap GetSubBitmap(const wxRect& rect);
+ virtual wxBitmap GetSubBitmap(const wxRect& rect) const;
/**
Gets the width of the bitmap in pixels.
-
- @sa GetHeight()
+
+ @see GetHeight()
*/
- int GetWidth();
+ virtual int GetWidth() const;
/**
Adds the standard bitmap format handlers, which, depending on wxWidgets
- configuration, can be handlers for Windows bitmap, Windows bitmap resource, and
- XPM.
-
+ configuration, can be handlers for Windows bitmap, Windows bitmap resource,
+ and XPM.
+
This function is called by wxWidgets on startup.
-
- @sa wxBitmapHandler
+
+ @see wxBitmapHandler
*/
static void InitStandardHandlers();
/**
Adds a handler at the start of the static list of format handlers.
-
+
@param handler
- A new bitmap format handler object. There is usually only one instance
- of a given handler class in an application session.
-
- @sa wxBitmapHandler
+ A new bitmap format handler object. There is usually only one instance
+ of a given handler class in an application session.
+
+ @see wxBitmapHandler
*/
static void InsertHandler(wxBitmapHandler* handler);
/**
Returns @true if bitmap data is present.
*/
-#define bool IsOk() /* implementation is private */
+ bool IsOk() const;
/**
Loads a bitmap from a file or resource.
-
+
@param name
- Either a filename or a Windows resource name.
- The meaning of name is determined by the type parameter.
-
+ Either a filename or a Windows resource name.
+ The meaning of name is determined by the @a type parameter.
@param type
- One of the following values:
-
-
- wxBITMAP_TYPE_BMP
-
-
- Load a Windows bitmap file.
-
- wxBITMAP_TYPE_BMP_RESOURCE
-
-
- Load a Windows bitmap resource from the executable.
-
- wxBITMAP_TYPE_PICT_RESOURCE
-
-
- Load a PICT image resource from the executable. Mac OS only.
-
- wxBITMAP_TYPE_GIF
-
-
- Load a GIF bitmap file.
-
- wxBITMAP_TYPE_XBM
-
-
- Load an X bitmap file.
-
- wxBITMAP_TYPE_XPM
-
-
- Load an XPM bitmap file.
-
- The validity of these flags depends on the platform and wxWidgets configuration.
-
- In addition, wxBitmap can read all formats that wxImage can
- (wxBITMAP_TYPE_JPEG, wxBITMAP_TYPE_PNG, wxBITMAP_TYPE_GIF, wxBITMAP_TYPE_PCX,
- wxBITMAP_TYPE_PNM).
- (Of course you must have wxImage handlers loaded.)
-
- @returns @true if the operation succeeded, @false otherwise.
-
+ One of the ::wxBitmapType values; see the note in the class
+ detailed description.
+
+ @return @true if the operation succeeded, @false otherwise.
+
@remarks A palette may be associated with the bitmap if one exists
- (especially for colour Windows bitmaps), and if the
- code supports it. You can check if one has been
- created by using the GetPalette member.
-
- @sa SaveFile()
+ (especially for colour Windows bitmaps), and if the
+ code supports it. You can check if one has been created
+ by using the GetPalette() member.
+
+ @see SaveFile()
*/
- bool LoadFile(const wxString& name, wxBitmapType type);
+ virtual bool LoadFile(const wxString& name, wxBitmapType type);
/**
- Finds the handler with the given name, and removes it. The handler
- is not deleted.
-
+ Finds the handler with the given name, and removes it.
+ The handler is not deleted.
+
@param name
- The handler name.
-
- @returns @true if the handler was found and removed, @false otherwise.
-
- @sa wxBitmapHandler
+ The handler name.
+
+ @return @true if the handler was found and removed, @false otherwise.
+
+ @see wxBitmapHandler
*/
static bool RemoveHandler(const wxString& name);
/**
Saves a bitmap in the named file.
-
+
@param name
- A filename. The meaning of name is determined by the type parameter.
-
+ A filename. The meaning of name is determined by the type parameter.
@param type
- One of the following values:
-
-
- wxBITMAP_TYPE_BMP
-
-
- Save a Windows bitmap file.
-
- wxBITMAP_TYPE_GIF
-
-
- Save a GIF bitmap file.
-
- wxBITMAP_TYPE_XBM
-
-
- Save an X bitmap file.
-
- wxBITMAP_TYPE_XPM
-
-
- Save an XPM bitmap file.
-
- The validity of these flags depends on the platform and wxWidgets configuration.
-
- In addition, wxBitmap can save all formats that wxImage can
- (wxBITMAP_TYPE_JPEG, wxBITMAP_TYPE_PNG).
- (Of course you must have wxImage handlers loaded.)
-
+ One of the ::wxBitmapType values; see the note in the class
+ detailed description.
@param palette
- An optional palette used for saving the bitmap.
-
- @returns @true if the operation succeeded, @false otherwise.
-
+ An optional palette used for saving the bitmap.
+
+ @return @true if the operation succeeded, @false otherwise.
+
@remarks Depending on how wxWidgets has been configured, not all formats
- may be available.
-
- @sa LoadFile()
+ may be available.
+
+ @see LoadFile()
*/
- bool SaveFile(const wxString& name, wxBitmapType type,
- wxPalette* palette = @NULL);
+ virtual bool SaveFile(const wxString& name, wxBitmapType type,
+ const wxPalette* palette = NULL) const;
/**
Sets the depth member (does not affect the bitmap data).
-
+
+ @todo since these functions do not affect the bitmap data,
+ why they exist??
+
@param depth
- Bitmap depth.
+ Bitmap depth.
*/
- void SetDepth(int depth);
+ virtual void SetDepth(int depth);
/**
Sets the height member (does not affect the bitmap data).
-
+
@param height
- Bitmap height in pixels.
+ Bitmap height in pixels.
*/
- void SetHeight(int height);
+ virtual void SetHeight(int height);
/**
Sets the mask for this bitmap.
-
+
@remarks The bitmap object owns the mask once this has been called.
-
- @sa GetMask(), wxMask
+
+ @see GetMask(), wxMask
*/
- void SetMask(wxMask* mask);
+ virtual void SetMask(wxMask* mask);
/**
Sets the associated palette. (Not implemented under GTK+).
-
+
@param palette
- The palette to set.
-
- @sa wxPalette
+ The palette to set.
+
+ @see wxPalette
*/
- void SetPalette(const wxPalette& palette);
+ virtual void SetPalette(const wxPalette& palette);
/**
Sets the width member (does not affect the bitmap data).
-
- @param width
- Bitmap width in pixels.
- */
- void SetWidth(int width);
- /**
- Assignment operator, using @ref overview_trefcount "reference counting".
-
- @param bitmap
- Bitmap to assign.
+ @param width
+ Bitmap width in pixels.
*/
- wxBitmap operator =(const wxBitmap& bitmap);
+ virtual void SetWidth(int width);
};
+/**
+ An empty wxBitmap object.
+*/
+wxBitmap wxNullBitmap;
+
+
+
/**
@class wxMask
@wxheader{bitmap.h}
This class encapsulates a monochrome mask bitmap, where the masked area is
- black and
- the unmasked area is white. When associated with a bitmap and drawn in a device
- context,
- the unmasked area of the bitmap will be drawn, and the masked area will not be
- drawn.
+ black and the unmasked area is white.
+
+ When associated with a bitmap and drawn in a device context, the unmasked
+ area of the bitmap will be drawn, and the masked area will not be drawn.
@library{wxcore}
@category{gdi}
- @seealso
- wxBitmap, wxDC::Blit, wxMemoryDC
+ @see wxBitmap, wxDC::Blit, wxMemoryDC
*/
class wxMask : public wxObject
{
public:
- //@{
+
+ /**
+ Default constructor.
+ */
+ wxMask();
+
/**
Constructs a mask from a bitmap and a palette index that indicates the
- background. Not
- yet implemented for GTK.
-
+ background.
+ Not yet implemented for GTK.
+
@param bitmap
- A valid bitmap.
-
- @param colour
- A colour specifying the transparency RGB values.
-
+ A valid bitmap.
@param index
- Index into a palette, specifying the transparency colour.
+ Index into a palette, specifying the transparency colour.
*/
- wxMask();
- wxMask(const wxBitmap& bitmap);
- wxMask(const wxBitmap& bitmap,
- const wxColour& colour);
wxMask(const wxBitmap& bitmap, int index);
- //@}
+
+ /**
+ Constructs a mask from a monochrome bitmap.
+
+ @beginWxPythonOnly
+ This is the default constructor for wxMask in wxPython.
+ @endWxPythonOnly
+ */
+ wxMask(const wxBitmap& bitmap);
+
+ /**
+ Constructs a mask from a bitmap and a colour that indicates the background.
+
+ @beginWxPythonOnly
+ wxPython has an alternate wxMask constructor matching this form called wxMaskColour.
+ @endWxPythonOnly
+ */
+ wxMask(const wxBitmap& bitmap, const wxColour& colour);
/**
Destroys the wxMask object and the underlying bitmap data.
*/
- ~wxMask();
+ virtual ~wxMask();
- //@{
/**
Constructs a mask from a bitmap and a palette index that indicates the
- background. Not
- yet implemented for GTK.
-
+ background.
+ Not yet implemented for GTK.
+
@param bitmap
- A valid bitmap.
-
- @param colour
- A colour specifying the transparency RGB values.
-
+ A valid bitmap.
@param index
- Index into a palette, specifying the transparency colour.
+ Index into a palette, specifying the transparency colour.
+ */
+ bool Create(const wxBitmap& bitmap, int index);
+
+ /**
+ Constructs a mask from a monochrome bitmap.
*/
bool Create(const wxBitmap& bitmap);
+
+ /**
+ Constructs a mask from a bitmap and a colour that indicates the background.
+ */
bool Create(const wxBitmap& bitmap, const wxColour& colour);
- bool Create(const wxBitmap& bitmap, int index);
- //@}
};
+
projects / wxWidgets.git / blobdiff