b57f2b537e
* added NOTE to BBitmap::LockBits(), has anybody some insight into this? Otherwise we need to write a test app to discover its secrets... :-) git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17120 a95241bf-73f2-0310-859d-f6bbb57e9c96
128 lines
3.4 KiB
C++
128 lines
3.4 KiB
C++
/*
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* Copyright 2001-2006, Haiku.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Ingo Weinhold (bonefish@users.sf.net)
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*/
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#ifndef _BITMAP_H
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#define _BITMAP_H
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#include <Archivable.h>
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#include <InterfaceDefs.h>
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#include <Rect.h>
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class BPrivateScreen;
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class BWindow;
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enum {
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B_BITMAP_CLEAR_TO_WHITE = 0x00000001,
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B_BITMAP_ACCEPTS_VIEWS = 0x00000002,
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B_BITMAP_IS_AREA = 0x00000004,
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B_BITMAP_IS_LOCKED = 0x00000008 | B_BITMAP_IS_AREA,
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B_BITMAP_IS_CONTIGUOUS = 0x00000010 | B_BITMAP_IS_LOCKED,
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B_BITMAP_IS_OFFSCREEN = 0x00000020,
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B_BITMAP_WILL_OVERLAY = 0x00000040 | B_BITMAP_IS_OFFSCREEN,
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B_BITMAP_RESERVE_OVERLAY_CHANNEL = 0x00000080,
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B_BITMAP_NO_SERVER_LINK = 0x00000100
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};
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#define B_ANY_BYTES_PER_ROW -1
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class BBitmap : public BArchivable {
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public:
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BBitmap(BRect bounds, uint32 flags, color_space colorSpace,
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int32 bytesPerRow = B_ANY_BYTES_PER_ROW,
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screen_id screenID = B_MAIN_SCREEN_ID);
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BBitmap(BRect bounds, color_space colorSpace, bool acceptsViews = false,
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bool needsContiguous = false);
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BBitmap(const BBitmap *source, bool acceptsViews = false,
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bool needsContiguous = false);
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virtual ~BBitmap();
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// Archiving
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BBitmap(BMessage *data);
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static BArchivable *Instantiate(BMessage *data);
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virtual status_t Archive(BMessage *data, bool deep = true) const;
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status_t InitCheck() const;
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bool IsValid() const;
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status_t LockBits(uint32 *state = NULL);
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void UnlockBits();
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area_id Area() const;
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void *Bits() const;
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int32 BitsLength() const;
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int32 BytesPerRow() const;
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color_space ColorSpace() const;
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BRect Bounds() const;
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uint32 Flags() const;
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void SetBits(const void *data, int32 length, int32 offset,
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color_space colorSpace);
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// not part of the R5 API
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status_t ImportBits(const void *data, int32 length, int32 bpr,
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int32 offset, color_space colorSpace);
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status_t ImportBits(const void *data, int32 length, int32 bpr,
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color_space colorSpace, BPoint from, BPoint to,
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int32 width, int32 height);
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status_t ImportBits(const BBitmap *bitmap);
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status_t ImportBits(const BBitmap *bitmap, BPoint from, BPoint to,
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int32 width, int32 height);
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status_t GetOverlayRestrictions(overlay_restrictions *restrictions) const;
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// to mimic a BWindow
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virtual void AddChild(BView *view);
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virtual bool RemoveChild(BView *view);
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int32 CountChildren() const;
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BView *ChildAt(int32 index) const;
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BView *FindView(const char *viewName) const;
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BView *FindView(BPoint point) const;
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bool Lock();
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void Unlock();
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bool IsLocked() const;
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//----- Private or reserved -----------------------------------------//
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virtual status_t Perform(perform_code d, void *arg);
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private:
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friend class BView;
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friend class BApplication;
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friend class BPrivateScreen;
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virtual void _ReservedBitmap1();
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virtual void _ReservedBitmap2();
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virtual void _ReservedBitmap3();
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BBitmap(const BBitmap &);
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BBitmap &operator=(const BBitmap &);
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int32 _ServerToken() const;
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void _InitObject(BRect bounds, color_space colorSpace, uint32 flags,
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int32 bytesPerRow, screen_id screenID);
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void _CleanUp();
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void _AssertPointer();
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uint8 *fBasePointer;
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int32 fSize;
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color_space fColorSpace;
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BRect fBounds;
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int32 fBytesPerRow;
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BWindow *fWindow;
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int32 fServerToken;
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int32 fAreaOffset;
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uint8 unused;
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area_id fArea;
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area_id fServerArea;
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uint32 fFlags;
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status_t fInitError;
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};
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#endif // _BITMAP_H
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