1 /* 2 * Copyright 2006, Haiku. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Stephan Aßmus <superstippi@gmx.de> 7 */ 8 9 #include "WonderBrushImage.h" 10 11 #include "Canvas.h" 12 13 WonderBrushImage::WonderBrushImage() 14 : fArchive((uint32)0) 15 { 16 } 17 18 19 WonderBrushImage::~WonderBrushImage() 20 { 21 } 22 23 24 status_t 25 WonderBrushImage::SetTo(BPositionIO* stream) 26 { 27 if (!stream) 28 return B_BAD_VALUE; 29 30 // try to load the stream as a BMessage and probe it 31 // to see whether it might be a WonderBrush image 32 fArchive.MakeEmpty(); 33 status_t status = fArchive.Unflatten(stream); 34 if (status < B_OK) 35 return status; 36 37 if (fArchive.HasMessage("layer") && fArchive.HasRect("bounds")) 38 return B_OK; 39 40 return B_ERROR; 41 } 42 43 44 BBitmap* 45 WonderBrushImage::Bitmap() const 46 { 47 Canvas canvas(BRect(0.0, 0.0, -1.0, -1.0)); 48 49 if (canvas.Unarchive(&fArchive) < B_OK) 50 return NULL; 51 52 return canvas.Bitmap(); 53 } 54 55 56