// headers
// ----------------------------------------------------------------------------
-#include "wx/defs.h"
-#include "wx/object.h"
#include "wx/string.h"
-#include "wx/gdiobj.h"
#include "wx/gdicmn.h" // for wxBitmapType
+#include "wx/colour.h"
-class WXDLLEXPORT wxBitmap;
-class WXDLLEXPORT wxBitmapHandler;
-class WXDLLEXPORT wxImage;
-class WXDLLEXPORT wxMask;
-class WXDLLEXPORT wxPalette;
+class WXDLLIMPEXP_FWD_CORE wxBitmap;
+class WXDLLIMPEXP_FWD_CORE wxBitmapHandler;
+class WXDLLIMPEXP_FWD_CORE wxIcon;
+class WXDLLIMPEXP_FWD_CORE wxImage;
+class WXDLLIMPEXP_FWD_CORE wxMask;
+class WXDLLIMPEXP_FWD_CORE wxPalette;
+
+// ----------------------------------------------------------------------------
+// wxVariant support
+// ----------------------------------------------------------------------------
+
+#if wxUSE_VARIANT
+#include "wx/variant.h"
+DECLARE_VARIANT_OBJECT_EXPORTED(wxBitmap,WXDLLIMPEXP_CORE)
+#endif
+
+// ----------------------------------------------------------------------------
+// wxMask represents the transparent area of the bitmap
+// ----------------------------------------------------------------------------
+
+// TODO: all implementation of wxMask, except the generic one,
+// do not derive from wxMaskBase,,, they should
+class WXDLLIMPEXP_CORE wxMaskBase : public wxObject
+{
+public:
+ // create the mask from bitmap pixels of the given colour
+ bool Create(const wxBitmap& bitmap, const wxColour& colour);
+
+#if wxUSE_PALETTE
+ // create the mask from bitmap pixels with the given palette index
+ bool Create(const wxBitmap& bitmap, int paletteIndex);
+#endif // wxUSE_PALETTE
+
+ // create the mask from the given mono bitmap
+ bool Create(const wxBitmap& bitmap);
+
+protected:
+ // this function is called from Create() to free the existing mask data
+ virtual void FreeData() = 0;
+
+ // these functions must be overridden to implement the corresponding public
+ // Create() methods, they shouldn't call FreeData() as it's already called
+ // by the public wrappers
+ virtual bool InitFromColour(const wxBitmap& bitmap,
+ const wxColour& colour) = 0;
+ virtual bool InitFromMonoBitmap(const wxBitmap& bitmap) = 0;
+};
#if defined(__WXMGL__) || \
defined(__WXDFB__) || \
#define wxUSE_BITMAP_BASE 0
#endif
-// Only used by some ports
-// FIXME -- make all ports (but MSW which uses wxGDIImage) use these base classes
+// a more readable way to tell
+#define wxBITMAP_SCREEN_DEPTH (-1)
+
+
+// All ports except wxMSW,wxOS2,wxPalmOS use wxBitmapHandler and wxBitmapBase as base class
+// for wxBitmapHandler; wxMSW,wxOS2,wxPalmOS use wxGDIImageHandler as base class
+// since it allows some code reuse there.
#if wxUSE_BITMAP_BASE
// ----------------------------------------------------------------------------
// different formats
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxBitmapHandlerBase : public wxObject
+class WXDLLIMPEXP_CORE wxBitmapHandler : public wxObject
{
public:
- wxBitmapHandlerBase()
- : m_name()
- , m_extension()
- , m_type(wxBITMAP_TYPE_INVALID)
- { }
+ wxBitmapHandler() { m_type = wxBITMAP_TYPE_INVALID; }
+ virtual ~wxBitmapHandler() { }
+
+ // NOTE: the following functions should be pure virtuals, but they aren't
+ // because otherwise almost all ports would have to implement
+ // them as "return false"...
+
+ virtual bool Create(wxBitmap *WXUNUSED(bitmap), const void* WXUNUSED(data),
+ wxBitmapType WXUNUSED(type), int WXUNUSED(width), int WXUNUSED(height),
+ int WXUNUSED(depth) = 1)
+ { return false; }
- virtual ~wxBitmapHandlerBase() { }
+ virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name),
+ wxBitmapType WXUNUSED(type), int WXUNUSED(desiredWidth),
+ int WXUNUSED(desiredHeight))
+ { return false; }
- virtual bool Create(wxBitmap *bitmap, void *data, long flags,
- int width, int height, int depth = 1) = 0;
- virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
- int desiredWidth, int desiredHeight) = 0;
- virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
- int type, const wxPalette *palette = NULL) = 0;
+ virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name),
+ wxBitmapType WXUNUSED(type), const wxPalette *WXUNUSED(palette) = NULL) const
+ { return false; }
void SetName(const wxString& name) { m_name = name; }
void SetExtension(const wxString& ext) { m_extension = ext; }
void SetType(wxBitmapType type) { m_type = type; }
- wxString GetName() const { return m_name; }
- wxString GetExtension() const { return m_extension; }
+ const wxString& GetName() const { return m_name; }
+ const wxString& GetExtension() const { return m_extension; }
wxBitmapType GetType() const { return m_type; }
private:
wxString m_extension;
wxBitmapType m_type;
-private:
- DECLARE_ABSTRACT_CLASS(wxBitmapHandlerBase)
+ DECLARE_ABSTRACT_CLASS(wxBitmapHandler)
};
-class WXDLLEXPORT wxBitmapBase : public wxGDIObject
+
+// ----------------------------------------------------------------------------
+// wxBitmap: class which represents platform-dependent bitmap (unlike wxImage)
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxBitmapBase : public wxGDIObject
{
public:
/*
Derived class must implement these:
wxBitmap();
- wxBitmap(int width, int height, int depth = -1);
+ wxBitmap(const wxBitmap& bmp);
wxBitmap(const char bits[], int width, int height, int depth = 1);
- wxBitmap(const char **bits);
- wxBitmap(char **bits);
+ wxBitmap(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
+ wxBitmap(const char* const* bits);
wxBitmap(const wxString &filename, wxBitmapType type = wxBITMAP_TYPE_XPM);
- wxBitmap(const wxImage& image, int depth = -1);
- bool operator == (const wxBitmap& bmp) const;
- bool operator != (const wxBitmap& bmp) const;
-
- bool Create(int width, int height, int depth = -1);
+ wxBitmap(const wxImage& image, int depth = wxBITMAP_SCREEN_DEPTH);
static void InitStandardHandlers();
*/
- virtual bool Ok() const = 0;
+ virtual bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH) = 0;
virtual int GetHeight() const = 0;
virtual int GetWidth() const = 0;
virtual int GetDepth() const = 0;
+#if wxUSE_IMAGE
virtual wxImage ConvertToImage() const = 0;
+#endif // wxUSE_IMAGE
virtual wxMask *GetMask() const = 0;
virtual void SetMask(wxMask *mask) = 0;
// Format handling
static inline wxList& GetHandlers() { return sm_handlers; }
- static void AddHandler(wxBitmapHandlerBase *handler);
- static void InsertHandler(wxBitmapHandlerBase *handler);
+ static void AddHandler(wxBitmapHandler *handler);
+ static void InsertHandler(wxBitmapHandler *handler);
static bool RemoveHandler(const wxString& name);
static wxBitmapHandler *FindHandler(const wxString& name);
static wxBitmapHandler *FindHandler(const wxString& extension, wxBitmapType bitmapType);
static void CleanUpHandlers();
+ // this method is only used by the generic implementation of wxMask
+ // currently but could be useful elsewhere in the future: it can be
+ // overridden to quantize the colour to correspond to bitmap colour depth
+ // if necessary; default implementation simply returns the colour as is
+ virtual wxColour QuantizeColour(const wxColour& colour) const
+ {
+ return colour;
+ }
+
protected:
static wxList sm_handlers;
#include "wx/os2/bitmap.h"
#endif
+// we must include generic mask.h after wxBitmap definition
+#if defined(__WXMGL__) || defined(__WXDFB__)
+ #define wxUSE_GENERIC_MASK 1
+#else
+ #define wxUSE_GENERIC_MASK 0
+#endif
+
+#if wxUSE_GENERIC_MASK
+ #include "wx/generic/mask.h"
+#endif
+
#endif // _WX_BITMAP_H_BASE_
projects / wxWidgets.git / blobdiff