101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
/*****************************************************************************/
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// BeUtils.h
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//
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// Version: 1.0.0d1
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//
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// Several utilities for writing applications for the BeOS. It are small
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// very specific functions, but generally useful (could be here because of a
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// lack in the APIs, or just sheer lazyness :))
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//
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// Authors
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// Ithamar R. Adema
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// Michael Pfeiffer
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//
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// This application and all source files used in its construction, except
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// where noted, are licensed under the MIT License, and have been written
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// and are:
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//
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// Copyright (c) 2001, 2002 OpenBeOS Project
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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/*****************************************************************************/
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#ifndef _BE_UTILS_H
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#define _BE_UTILS_H
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#include <FindDirectory.h>
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#include <Path.h>
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#include <SupportDefs.h>
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#include <Picture.h>
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#include <PictureButton.h>
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#include <TranslatorFormats.h>
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#include <TranslationUtils.h>
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status_t TestForAddonExistence(const char* name, directory_which which,
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const char* section, BPath& outPath);
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// Reference counted object
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class Object {
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private:
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int32 fRefCount;
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public:
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// After construction reference count is 1
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Object() : fRefCount(1) { }
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// dtor should be private, but ie. ObjectList requires a public dtor!
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virtual ~Object() { };
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// thread-safe as long as thread that calls Acquire has already
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// a reference to the object
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void Acquire() {
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atomic_add(&fRefCount, 1);
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}
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bool Release() {
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if (atomic_add(&fRefCount, -1) == 1) {
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delete this; return true;
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} else {
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return false;
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}
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}
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};
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// Automatically send a reply to sender on destruction of object
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// and delete sender
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class AutoReply {
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BMessage* fSender;
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BMessage fReply;
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public:
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AutoReply(BMessage* sender, uint32 what);
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~AutoReply();
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void SetReply(BMessage* m) { fReply = *m; }
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};
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// mimetype from sender
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bool MimeTypeForSender(BMessage* sender, BString& mime);
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// load bitmap from application resources
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BBitmap* LoadBitmap(const char* name, uint32 type_code = B_TRANSLATOR_BITMAP);
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// convert bitmap to picture; view must be attached to a window!
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// returns NULL if bitmap is NULL
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BPicture *BitmapToPicture(BView* view, BBitmap *bitmap);
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BPicture *BitmapToGrayedPicture(BView* view, BBitmap *bitmap);
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#endif
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