// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
+
+
+/**
+ In wxIcon context this value means: "use the screen depth".
+*/
+#define wxICON_SCREEN_DEPTH (-1)
+
+
/**
@class wxIcon
- An icon is a small rectangular bitmap usually used for denoting a
- minimized application. It differs from a wxBitmap in always
- having a mask associated with it for transparent drawing. On some platforms,
- icons and bitmaps are implemented identically, since there is no real
- distinction between
- a wxBitmap with a mask and an icon; and there is no specific icon format on
- some platforms (X-based applications usually standardize on XPMs for small
- bitmaps
- and icons). However, some platforms (such as Windows) make the distinction, so
- a separate class is provided.
+ An icon is a small rectangular bitmap usually used for denoting a minimized
+ application.
+
+ It differs from a wxBitmap in always having a mask associated with it for
+ transparent drawing. On some platforms, icons and bitmaps are implemented
+ identically, since there is no real distinction between a wxBitmap with a
+ mask and an icon; and there is no specific icon format on some platforms
+ (X-based applications usually standardize on XPMs for small bitmaps and icons).
+ However, some platforms (such as Windows) make the distinction, so a
+ separate class is provided.
+
+ @remarks
+ It is usually desirable to associate a pertinent icon with a frame.
+ Icons can also be used for other purposes, for example with wxTreeCtrl and wxListCtrl.
+ Icons have different formats on different platforms therefore separate icons
+ will usually be created for the different environments.
+ Platform-specific methods for creating a wxIcon structure are catered for,
+ and this is an occasion where conditional compilation will probably be required.
+ Note that a new icon must be created for every time the icon is to be used
+ for a new window. In Windows, the icon will not be reloaded if it has already
+ been used.
+ An icon allocated to a frame will be deleted when the frame is deleted.
+ For more information please see @ref overview_bitmap.
@library{wxcore}
@category{gdi}
@stdobjects
::wxNullIcon
- @see @ref overview_wxbitmapoverview "Bitmap and icon overview", @ref
- overview_supportedbitmapformats "supported bitmap file formats", wxDC::DrawIcon, wxCursor
+ @see @ref overview_bitmap, @ref overview_bitmap_supportedformats,
+ wxDC::DrawIcon, wxCursor
*/
class wxIcon : public wxBitmap
{
public:
- //@{
/**
- Loads an icon from the specified location().
-
- @param bits
- Specifies an array of pixel values.
- @param width
- Specifies the width of the icon.
- @param height
- Specifies the height of the icon.
- @param desiredWidth
- Specifies the desired width of the icon. This
- parameter only has an effect in Windows (32-bit) where icon resources can
- contain
- several icons of different sizes.
- @param desiredWidth
- Specifies the desired height of the icon. This
- parameter only has an effect in Windows (32-bit) where icon resources can
- contain
- several icons of different sizes.
- @param depth
- Specifies the depth of the icon. If this is omitted, the display depth of
- the
- screen is used.
- @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 flags parameter.
- @param loc
- The object describing the location of the native icon, see
- wxIconLocation.
- @param type
- May be one of the following:
-
-
-
-
-
-
-
- wxBITMAP_TYPE_ICO
-
-
-
-
- Load a Windows icon file.
-
-
-
-
-
- wxBITMAP_TYPE_ICO_RESOURCE
-
-
-
-
- Load a Windows icon from the resource database.
-
-
-
-
-
- wxBITMAP_TYPE_GIF
-
-
-
-
- Load a GIF bitmap file.
-
-
-
-
-
- wxBITMAP_TYPE_XBM
-
-
-
-
- Load an X bitmap file.
-
-
+ Default ctor.
+ Constructs an icon object with no data; an assignment or another member
+ function such as LoadFile() must be called subsequently.
+ */
+ wxIcon();
+ /**
+ Copy ctor.
+ */
+ wxIcon(const wxIcon& icon);
- wxBITMAP_TYPE_XPM
+ /*
+ Creates an icon from the given data, which can be of arbitrary type.
+ wxIcon(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 an icon from an array of 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.
- Load an XPM bitmap file.
+ 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.
+ @param width
+ The width of the image.
+ @param height
+ The height of the image.
+ @onlyfor{wxmsw,wxosx}
+ */
+ wxIcon(const char bits[], int width, int height);
+ /**
+ Creates a bitmap from XPM data.
+ To use this constructor, you must first include an XPM file.
+ For example, assuming that the file mybitmap.xpm contains an XPM array
+ of character pointers called @e mybitmap:
+
+ @code
+ #include "mybitmap.xpm"
+ ...
+ wxIcon *icon = new wxIcon(mybitmap);
+ @endcode
+
+ A macro, wxICON, is available which creates an icon using an XPM on
+ the appropriate platform, or an icon resource on Windows.
+
+ @code
+ wxIcon icon(wxICON(mondrian));
+
+ // Equivalent to:
+ #if defined(__WXGTK__) || defined(__WXMOTIF__)
+ wxIcon icon(mondrian_xpm);
+ #endif
+
+ #if defined(__WXMSW__)
+ wxIcon icon("mondrian");
+ #endif
+ @endcode
+ */
+ wxIcon(const char* const* bits);
+ /**
+ Loads an icon from a file or resource.
- The validity of these flags depends on the platform and wxWidgets
- configuration.
- If all possible wxWidgets settings are used, the Windows platform supports
- ICO file, ICO resource,
- XPM data, and XPM file. 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.
+ @param name
+ 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 ::wxBitmapType values and indicates which type of
+ bitmap should be loaded. See the note in the class detailed description.
+ Note that the wxICON_DEFAULT_TYPE constant has different value under
+ different wxWidgets ports. See the icon.h header for the value it takes
+ for a specific port.
+ @param desiredWidth
+ Specifies the desired width of the icon. This parameter only has
+ an effect in Windows where icon resources can contain several icons
+ of different sizes.
+ @param desiredHeight
+ Specifies the desired height of the icon. This parameter only has
+ an effect in Windows where icon resources can contain several icons
+ of different sizes.
+
+ @see LoadFile()
+ */
+ wxIcon(const wxString& name, wxBitmapType type = wxICON_DEFAULT_TYPE,
+ int desiredWidth = -1, int desiredHeight = -1);
- @remarks The first form constructs an icon object with no data; an
- assignment or another member function such as Create or
- LoadFile must be called subsequently.
+ /**
+ Loads an icon from the specified location.
*/
- wxIcon();
- wxIcon(const wxIcon& icon);
- wxIcon(void* data, int type, int width, int height,
- int depth = -1);
- wxIcon(const char bits[], int width, int height,
- int depth = 1);
- wxIcon(int width, int height, int depth = -1);
- wxIcon(const char* const* bits);
- wxIcon(const wxString& name, wxBitmapType type,
- int desiredWidth = -1,
- int desiredHeight = -1);
wxIcon(const wxIconLocation& loc);
- //@}
/**
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 icon explicitly, the icon will be
destroyed automatically by wxWidgets when the application exits.
+
+ @warning
Do not delete an icon that is selected into a memory device context.
*/
- ~wxIcon();
+ virtual ~wxIcon();
/**
- Copies @a bmp bitmap to this icon. Under MS Windows the bitmap
- must have mask colour set.
-
- LoadFile()
+ Copies @a bmp bitmap to this icon.
+ Under MS Windows the bitmap must have mask colour set.
- Wx::Icon-new( width, height, depth = -1 )
- Wx::Icon-new( name, type, desiredWidth = -1, desiredHeight = -1 )
- Wx::Icon-newFromBits( bits, width, height, depth = 1 )
- Wx::Icon-newFromXPM( data )
+ @see LoadFile()
*/
void CopyFromBitmap(const wxBitmap& bmp);
/**
- Gets the colour depth of the icon. A value of 1 indicates a
- monochrome icon.
+ Gets the colour depth of the icon.
+ A value of 1 indicates a monochrome icon.
*/
int GetDepth() const;
/**
Gets the height of the icon in pixels.
+
+ @see GetWidth()
*/
int GetHeight() const;
/**
Returns @true if icon data is present.
*/
- bool IsOk() const;
+ virtual bool IsOk() const;
/**
Loads an icon 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.
+ The meaning of name is determined by the @a type parameter.
@param type
- One of the following values:
-
-
-
-
-
-
-
- wxBITMAP_TYPE_ICO
-
-
-
-
- Load a Windows icon file.
-
-
-
-
-
- wxBITMAP_TYPE_ICO_RESOURCE
-
-
-
-
- Load a Windows icon from the resource database.
-
-
-
-
-
- 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.
+ One of the ::wxBitmapType values; see the note in the class
+ detailed description.
+ Note that the wxICON_DEFAULT_TYPE constant has different value under
+ different wxWidgets ports. See the icon.h header for the value it takes
+ for a specific port.
+ @param desiredWidth
+ Specifies the desired width of the icon. This parameter only has
+ an effect in Windows where icon resources can contain several icons
+ of different sizes.
+ @param desiredHeight
+ Specifies the desired height of the icon. This parameter only has
+ an effect in Windows where icon resources can contain several icons
+ of different sizes.
@return @true if the operation succeeded, @false otherwise.
-
- @see wxIcon()
*/
- bool LoadFile(const wxString& name, wxBitmapType type);
+ bool LoadFile(const wxString& name, wxBitmapType type = wxICON_DEFAULT_TYPE,
+ int desiredWidth = -1, int desiredHeight = -1);
/**
Sets the depth member (does not affect the icon data).
void SetWidth(int width);
/**
- Assignment operator, using @ref overview_trefcount "reference counting".
+ Assignment operator, using @ref overview_refcount.
@param icon
Icon to assign.
*/
- wxIcon operator =(const wxIcon& icon);
+ wxIcon& operator=(const wxIcon& icon);
};
/**
projects / wxWidgets.git / blobdiff