haiku/headers/os/interface/IconUtils.h
Stephan Aßmus 4153964a10 Moved IconUtils.h to Interface Kit and therefor made it an "official" header. Since the class has no
virtual but only static methods, it is not so likely that binary compatibility issues may arrise
from using it in new apps. Adjusted all the Jamfiles that included the private libicon headers. Note
that it was never necessary to link against libicon.a, since it's part of libbe anyway. There was one
instance where that was done. Hopefully it does not break the build, but I did this change a while ago,
tested it and then the harddrive began failing.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40679 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-02-25 09:12:38 +00:00

81 lines
2.8 KiB
C++

/*
* Copyright 2006-2008, Haiku. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _ICON_UTILS_H
#define _ICON_UTILS_H
#include <Mime.h>
class BBitmap;
class BNode;
// This class is a little different from many other classes.
// You don't create an instance of it; you just call its various
// static member functions for utility-like operations.
class BIconUtils {
BIconUtils();
~BIconUtils();
BIconUtils(const BIconUtils&);
BIconUtils& operator=(const BIconUtils&);
public:
// Utility function to import an icon from the node that
// has either of the provided attribute names. Which icon type
// is preferred (vector, small or large B_CMAP8 icon) depends
// on the colorspace of the provided bitmap. If the colorspace
// is B_CMAP8, B_CMAP8 icons are preferred. In that case, the
// bitmap size must also match the provided icon_size "size"!
static status_t GetIcon(BNode* node,
const char* vectorIconAttrName,
const char* smallIconAttrName,
const char* largeIconAttrName,
icon_size size, BBitmap* result);
// Utility functions to import a vector icon in "flat icon"
// format from a BNode attribute or from a flat buffer in
// memory into the preallocated BBitmap "result".
// The colorspace of result needs to be B_RGBA32 or at
// least B_RGB32 (though that makes less sense). The icon
// will be scaled from it's "native" size of 64x64 to the
// size of the bitmap, the scale is derived from the bitmap
// width, the bitmap should have square dimension, or the
// icon will be cut off at the bottom (or have room left).
static status_t GetVectorIcon(BNode* node,
const char* attrName, BBitmap* result);
static status_t GetVectorIcon(const uint8* buffer,
size_t size, BBitmap* result);
// Utility function to import an "old" BeOS icon in B_CMAP8
// colorspace from either the small icon attribute or the
// large icon attribute as given in "smallIconAttrName" and
// "largeIconAttrName". Which icon is loaded depends on
// the given "size".
static status_t GetCMAP8Icon(BNode* node,
const char* smallIconAttrName,
const char* largeIconAttrName,
icon_size size, BBitmap* icon);
// Utility functions to convert from old icon colorspace
// into colorspace of BBitmap "result" (should be B_RGBA32
// to make any sense).
static status_t ConvertFromCMAP8(BBitmap* source,
BBitmap* result);
static status_t ConvertToCMAP8(BBitmap* source,
BBitmap* result);
static status_t ConvertFromCMAP8(const uint8* data,
uint32 width, uint32 height,
uint32 bytesPerRow, BBitmap* result);
static status_t ConvertToCMAP8(const uint8* data,
uint32 width, uint32 height,
uint32 bytesPerRow, BBitmap* result);
};
#endif // _ICON_UTILS_H