#ifndef _WX_BITMAP_H_
#define _WX_BITMAP_H_
-#ifdef __GNUG__
- #pragma interface "bitmap.h"
-#endif
-
#include "wx/msw/gdiimage.h"
-#include "wx/gdicmn.h"
#include "wx/palette.h"
-class WXDLLEXPORT wxDC;
-class WXDLLEXPORT wxControl;
-class WXDLLEXPORT wxBitmap;
-class WXDLLEXPORT wxBitmapHandler;
-class WXDLLEXPORT wxIcon;
-class WXDLLEXPORT wxMask;
-class WXDLLEXPORT wxCursor;
-class WXDLLEXPORT wxControl;
-class WXDLLEXPORT wxImage;
-class WXDLLEXPORT wxPalette;
-
-// ----------------------------------------------------------------------------
-// Bitmap data
-//
-// NB: this class is private, but declared here to make it possible inline
-// wxBitmap functions accessing it
-// ----------------------------------------------------------------------------
-
-class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData
+class WXDLLIMPEXP_FWD_CORE wxBitmap;
+class WXDLLIMPEXP_FWD_CORE wxBitmapHandler;
+class WXDLLIMPEXP_FWD_CORE wxBitmapRefData;
+class WXDLLIMPEXP_FWD_CORE wxControl;
+class WXDLLIMPEXP_FWD_CORE wxCursor;
+class WXDLLIMPEXP_FWD_CORE wxDC;
+#if wxUSE_WXDIB
+class WXDLLIMPEXP_FWD_CORE wxDIB;
+#endif
+class WXDLLIMPEXP_FWD_CORE wxIcon;
+class WXDLLIMPEXP_FWD_CORE wxImage;
+class WXDLLIMPEXP_FWD_CORE wxMask;
+class WXDLLIMPEXP_FWD_CORE wxPalette;
+class WXDLLIMPEXP_FWD_CORE wxPixelDataBase;
+
+// What kind of transparency should a bitmap copied from an icon or cursor
+// have?
+enum wxBitmapTransparency
{
-public:
- wxBitmapRefData();
- virtual ~wxBitmapRefData() { Free(); }
-
- virtual void Free();
-
-public:
- int m_numColors;
-#if wxUSE_PALETTE
- wxPalette m_bitmapPalette;
-#endif // wxUSE_PALETTE
- int m_quality;
-
- // MSW-specific
- // ------------
-
- // this field is solely for error checking: we detect selecting a bitmap
- // into more than one DC at once or deleting a bitmap still selected into a
- // DC (both are serious programming errors under Windows)
- wxDC *m_selectedInto;
-
- // optional mask for transparent drawing
- wxMask *m_bitmapMask;
+ wxBitmapTransparency_Auto, // default: copy alpha if the source has it
+ wxBitmapTransparency_None, // never create alpha
+ wxBitmapTransparency_Always // always use alpha
};
// ----------------------------------------------------------------------------
// wxBitmap: a mono or colour bitmap
+// NOTE: for wxMSW we don't use the wxBitmapBase base class declared in bitmap.h!
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxBitmap : public wxGDIImage
+class WXDLLIMPEXP_CORE wxBitmap : public wxGDIImage
{
public:
// default ctor creates an invalid bitmap, you must Create() it later
- wxBitmap() { Init(); }
-
- // Copy constructors
- wxBitmap(const wxBitmap& bitmap) { Init(); Ref(bitmap); }
+ wxBitmap() { }
// Initialize with raw data
wxBitmap(const char bits[], int width, int height, int depth = 1);
// Initialize with XPM data
- wxBitmap(const char **data) { CreateFromXpm(data); }
- wxBitmap(char **data) { CreateFromXpm((const char **)data); }
+ wxBitmap(const char* const* data);
+#ifdef wxNEEDS_CHARPP
+ wxBitmap(char** data)
+ {
+ *this = wxBitmap(const_cast<const char* const*>(data));
+ }
+#endif
// Load a file or resource
- wxBitmap(const wxString& name, wxBitmapType type = wxBITMAP_TYPE_BMP_RESOURCE);
+ wxBitmap(const wxString& name, wxBitmapType type = wxBITMAP_DEFAULT_TYPE);
// New constructor for generalised creation from data
- wxBitmap(void *data, long type, int width, int height, int depth = 1);
+ wxBitmap(const void* data, wxBitmapType type, int width, int height, int depth = 1);
- // If depth is omitted, will create a bitmap compatible with the display
+ // Create a new, uninitialized bitmap of the given size and depth (if it
+ // is omitted, will create a bitmap compatible with the display)
+ //
+ // NB: this ctor will create a DIB for 24 and 32bpp bitmaps, use ctor
+ // taking a DC argument if you want to force using DDB in this case
wxBitmap(int width, int height, int depth = -1);
+ // Create a bitmap compatible with the given DC
+ wxBitmap(int width, int height, const wxDC& dc);
+
#if wxUSE_IMAGE
- // Convert from wxImage:
+ // Convert from wxImage
wxBitmap(const wxImage& image, int depth = -1)
{ (void)CreateFromImage(image, depth); }
+
+ // Create a DDB compatible with the given DC from wxImage
+ wxBitmap(const wxImage& image, const wxDC& dc)
+ { (void)CreateFromImage(image, dc); }
#endif // wxUSE_IMAGE
// we must have this, otherwise icons are silently copied into bitmaps using
// the copy ctor but the resulting bitmap is invalid!
- wxBitmap(const wxIcon& icon) { Init(); CopyFromIcon(icon); }
-
- wxBitmap& operator=(const wxBitmap& bitmap)
+ wxBitmap(const wxIcon& icon,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto)
{
- if ( m_refData != bitmap.m_refData )
- Ref(bitmap);
- return *this;
+ CopyFromIcon(icon, transp);
}
wxBitmap& operator=(const wxIcon& icon)
// get the given part of bitmap
wxBitmap GetSubBitmap( const wxRect& rect ) const;
+ // NB: This should not be called from user code. It is for wx internal
+ // use only.
+ wxBitmap GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const;
+
// copies the contents and mask of the given (colour) icon to the bitmap
- bool CopyFromIcon(const wxIcon& icon);
+ bool CopyFromIcon(const wxIcon& icon,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto);
// copies the contents and mask of the given cursor to the bitmap
- bool CopyFromCursor(const wxCursor& cursor);
+ bool CopyFromCursor(const wxCursor& cursor,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto);
+
+#if wxUSE_WXDIB
+ // copies from a device independent bitmap
+ bool CopyFromDIB(const wxDIB& dib);
+#endif
- virtual bool Create(int width, int height, int depth = -1);
- virtual bool Create(void *data, long type, int width, int height, int depth = 1);
- virtual bool LoadFile(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE);
- virtual bool SaveFile(const wxString& name, int type, const wxPalette *cmap = NULL);
+ virtual bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
+ virtual bool Create(int width, int height, const wxDC& dc);
+ virtual bool Create(const void* data, wxBitmapType type, int width, int height, int depth = 1);
+ virtual bool LoadFile(const wxString& name, wxBitmapType type = wxBITMAP_DEFAULT_TYPE);
+ virtual bool SaveFile(const wxString& name, wxBitmapType type, const wxPalette *cmap = NULL) const;
- wxBitmapRefData *GetBitmapData() const { return (wxBitmapRefData *)m_refData; }
+ wxBitmapRefData *GetBitmapData() const
+ { return (wxBitmapRefData *)m_refData; }
- int GetQuality() const { return (GetBitmapData() ? GetBitmapData()->m_quality : 0); }
- void SetQuality(int q);
+ // raw bitmap access support functions
+ void *GetRawData(wxPixelDataBase& data, int bpp);
+ void UngetRawData(wxPixelDataBase& data);
#if wxUSE_PALETTE
- wxPalette* GetPalette() const { return (GetBitmapData() ? (& GetBitmapData()->m_bitmapPalette) : (wxPalette*) NULL); }
+ wxPalette* GetPalette() const;
void SetPalette(const wxPalette& palette);
#endif // wxUSE_PALETTE
- wxMask *GetMask() const { return (GetBitmapData() ? GetBitmapData()->m_bitmapMask : (wxMask*) NULL); }
- void SetMask(wxMask *mask) ;
+ wxMask *GetMask() const;
+ wxBitmap GetMaskBitmap() const;
+ void SetMask(wxMask *mask);
- bool operator==(const wxBitmap& bitmap) const { return m_refData == bitmap.m_refData; }
- bool operator!=(const wxBitmap& bitmap) const { return m_refData != bitmap.m_refData; }
+ // these functions are internal and shouldn't be used, they risk to
+ // disappear in the future
+ bool HasAlpha() const;
+ void UseAlpha();
-#if WXWIN_COMPATIBILITY_2
- void SetOk(bool isOk);
-#endif // WXWIN_COMPATIBILITY_2
+ // implementation only from now on
+ // -------------------------------
-#if wxUSE_PALETTE
-#if WXWIN_COMPATIBILITY
- wxPalette *GetColourMap() const { return GetPalette(); }
- void SetColourMap(wxPalette *cmap) { SetPalette(*cmap); };
-#endif // WXWIN_COMPATIBILITY
-#endif // wxUSE_PALETTE
-
- // Implementation
public:
void SetHBITMAP(WXHBITMAP bmp) { SetHandle((WXHANDLE)bmp); }
WXHBITMAP GetHBITMAP() const { return (WXHBITMAP)GetHandle(); }
- void SetSelectedInto(wxDC *dc) { if (GetBitmapData()) GetBitmapData()->m_selectedInto = dc; }
- wxDC *GetSelectedInto() const { return (GetBitmapData() ? GetBitmapData()->m_selectedInto : (wxDC*) NULL); }
-
- // Creates a bitmap that matches the device context's depth, from an
- // arbitray bitmap. At present, the original bitmap must have an associated
- // palette. (TODO: use a default palette if no palette exists.) This
- // function is necessary for you to Blit an arbitrary bitmap (which may
- // have the wrong depth). wxDC::SelectObject will compare the depth of the
- // bitmap with the DC's depth, and create a new bitmap if the depths
- // differ. Eventually we should perhaps make this a public API function so
- // that an app can efficiently produce bitmaps of the correct depth. The
- // Windows solution is to use SetDibBits to blit an arbotrary DIB directly
- // to a DC, but this is too Windows-specific, hence this solution of
- // quietly converting the wxBitmap. Contributed by Frederic Villeneuve
- // <frederic.villeneuve@natinst.com>
- wxBitmap GetBitmapForDC(wxDC& dc) const;
+#ifdef __WXDEBUG__
+ void SetSelectedInto(wxDC *dc);
+ wxDC *GetSelectedInto() const;
+#endif // __WXDEBUG__
protected:
- // common part of all ctors
- void Init();
+ virtual wxGDIImageRefData *CreateData() const;
+ virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
- virtual wxGDIImageRefData *CreateData() const
- { return new wxBitmapRefData; }
-
- // creates the bitmap from XPM data, supposed to be called from ctor
- bool CreateFromXpm(const char **bits);
+ // creates an uninitialized bitmap, called from Create()s above
+ bool DoCreate(int w, int h, int depth, WXHDC hdc);
#if wxUSE_IMAGE
// creates the bitmap from wxImage, supposed to be called from ctor
bool CreateFromImage(const wxImage& image, int depth);
+
+ // creates a DDB from wxImage, supposed to be called from ctor
+ bool CreateFromImage(const wxImage& image, const wxDC& dc);
+
+ // common part of the 2 methods above (hdc may be 0)
+ bool CreateFromImage(const wxImage& image, int depth, WXHDC hdc);
#endif // wxUSE_IMAGE
private:
-#ifdef __WIN32__
// common part of CopyFromIcon/CopyFromCursor for Win32
- bool CopyFromIconOrCursor(const wxGDIImage& icon);
-#endif // __WIN32__
+ bool
+ CopyFromIconOrCursor(const wxGDIImage& icon,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto);
+
DECLARE_DYNAMIC_CLASS(wxBitmap)
};
// wxMask: a mono bitmap used for drawing bitmaps transparently.
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxMask : public wxObject
+class WXDLLIMPEXP_CORE wxMask : public wxObject
{
public:
wxMask();
+ // Copy constructor
+ wxMask(const wxMask &mask);
+
// Construct a mask from a bitmap and a colour indicating the transparent
// area
wxMask(const wxBitmap& bitmap, const wxColour& colour);
DECLARE_DYNAMIC_CLASS(wxMask)
};
+
// ----------------------------------------------------------------------------
// wxBitmapHandler is a class which knows how to load/save bitmaps to/from file
+// NOTE: for wxMSW we don't use the wxBitmapHandler class declared in bitmap.h!
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxBitmapHandler : public wxGDIImageHandler
+class WXDLLIMPEXP_CORE wxBitmapHandler : public wxGDIImageHandler
{
public:
- wxBitmapHandler() { m_type = wxBITMAP_TYPE_INVALID; }
- wxBitmapHandler(const wxString& name, const wxString& ext, long type)
- : wxGDIImageHandler(name, ext, type)
- {
- }
+ wxBitmapHandler() { }
+ wxBitmapHandler(const wxString& name, const wxString& ext, wxBitmapType type)
+ : wxGDIImageHandler(name, ext, type) { }
- // keep wxBitmapHandler derived from wxGDIImageHandler compatible with the
- // old class which worked only with bitmaps
- virtual bool Create(wxBitmap *bitmap,
- void *data,
- long flags,
- int width, int height, int depth = 1);
- virtual bool LoadFile(wxBitmap *bitmap,
- const wxString& name,
- long flags,
- int desiredWidth, int desiredHeight);
- virtual bool SaveFile(wxBitmap *bitmap,
- const wxString& name,
- int type,
- const wxPalette *palette = NULL);
+ // implement wxGDIImageHandler's pure virtuals:
virtual bool Create(wxGDIImage *image,
- void *data,
- long flags,
+ const void* data,
+ wxBitmapType type,
int width, int height, int depth = 1);
virtual bool Load(wxGDIImage *image,
const wxString& name,
- long flags,
+ wxBitmapType type,
int desiredWidth, int desiredHeight);
- virtual bool Save(wxGDIImage *image,
+ virtual bool Save(const wxGDIImage *image,
const wxString& name,
- int type);
+ wxBitmapType type) const;
+
+
+ // make wxBitmapHandler compatible with the wxBitmapHandler interface
+ // declared in bitmap.h, even if it's derived from wxGDIImageHandler:
+
+ virtual bool Create(wxBitmap *bitmap,
+ const void* data,
+ wxBitmapType type,
+ int width, int height, int depth = 1);
+ virtual bool LoadFile(wxBitmap *bitmap,
+ const wxString& name,
+ wxBitmapType type,
+ int desiredWidth, int desiredHeight);
+ virtual bool SaveFile(const wxBitmap *bitmap,
+ const wxString& name,
+ wxBitmapType type,
+ const wxPalette *palette = NULL) const;
private:
DECLARE_DYNAMIC_CLASS(wxBitmapHandler)
projects / wxWidgets.git / blobdiff