haiku/headers/build/os/interface/Bitmap.h

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2005, Haiku, Inc.
//
// Distributed under the terms of the MIT license.
//
// File Name: Bitmap.h
// Author: Ingo Weinhold (bonefish@users.sf.net)
// Description: BBitmap objects represent off-screen windows that
// contain bitmap data.
//------------------------------------------------------------------------------
#ifndef _BITMAP_H
#define _BITMAP_H
#include <Archivable.h>
#include <InterfaceDefs.h>
#include <Rect.h>
enum {
B_BITMAP_CLEAR_TO_WHITE = 0x00000001,
B_BITMAP_ACCEPTS_VIEWS = 0x00000002,
B_BITMAP_IS_AREA = 0x00000004,
B_BITMAP_IS_LOCKED = 0x00000008 | B_BITMAP_IS_AREA,
B_BITMAP_IS_CONTIGUOUS = 0x00000010 | B_BITMAP_IS_LOCKED,
B_BITMAP_IS_OFFSCREEN = 0x00000020,
B_BITMAP_WILL_OVERLAY = 0x00000040 | B_BITMAP_IS_OFFSCREEN,
B_BITMAP_RESERVE_OVERLAY_CHANNEL = 0x00000080,
B_BITMAP_NO_SERVER_LINK = 0x00000100
};
#define B_ANY_BYTES_PER_ROW -1
//----------------------------------------------------------------//
//----- BBitmap class --------------------------------------------//
class BBitmap : public BArchivable {
public:
BBitmap(BRect bounds, uint32 flags, color_space colorSpace,
int32 bytesPerRow = B_ANY_BYTES_PER_ROW,
screen_id screenID = B_MAIN_SCREEN_ID);
BBitmap(BRect bounds, color_space colorSpace, bool acceptsViews = false,
bool needsContiguous = false);
BBitmap(const BBitmap *source, bool acceptsViews = false,
bool needsContiguous = false);
virtual ~BBitmap();
// Archiving
BBitmap(BMessage *data);
static BArchivable *Instantiate(BMessage *data);
virtual status_t Archive(BMessage *data, bool deep = true) const;
status_t InitCheck() const;
bool IsValid() const;
status_t LockBits(uint32 *state = NULL);
void UnlockBits();
area_id Area() const;
void *Bits() const;
int32 BitsLength() const;
int32 BytesPerRow() const;
color_space ColorSpace() const;
BRect Bounds() const;
void SetBits(const void *data, int32 length, int32 offset,
color_space colorSpace);
// not part of the R5 API
status_t ImportBits(const void *data, int32 length, int32 bpr,
int32 offset, color_space colorSpace);
status_t ImportBits(const BBitmap *bitmap);
status_t GetOverlayRestrictions(overlay_restrictions *restrictions) const;
//----- Private or reserved -----------------------------------------//
virtual status_t Perform(perform_code d, void *arg);
private:
virtual void _ReservedBitmap1();
virtual void _ReservedBitmap2();
virtual void _ReservedBitmap3();
BBitmap(const BBitmap &);
BBitmap &operator=(const BBitmap &);
char *get_shared_pointer() const;
int32 get_server_token() const;
void InitObject(BRect bounds, color_space colorSpace, uint32 flags,
int32 bytesPerRow, screen_id screenID);
void CleanUp();
void AssertPtr();
void *fBasePtr;
int32 fSize;
color_space fColorSpace;
BRect fBounds;
int32 fBytesPerRow;
int32 fServerToken;
int32 fToken;
uint8 unused;
area_id fArea;
area_id fOrigArea;
uint32 fFlags;
status_t fInitError;
};
/*-------------------------------------------------------------*/
/*-------------------------------------------------------------*/
#endif // _BITMAP_H