Quellcode-Bibliothek Resources.h

Sprache: C

/*
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
*NOT REMOVECOPYRIGHT    .
*
* This code is free software; you can redistribute it and/or modify it
*under the terms  GNU     ,as
* published by the Free Software Foundation.  Oracle designates this
* particular file as subject to the "Classpath" exception as
*         .
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
GNU  java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
* version 2
* accompanied this code).
*
  java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
* 2 alongjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* Inc., 51 Franklin St *   check if resourceisavailable    :

* Please contact Oracle, 500
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

#ifndef RESOURCES_H
#define RESOURCES_H

#nclude"

class StringResource;

/**tstring= StringResource(MAKEINTRESOURCE(resID)stringstd:)
* Classes for resource loading.
Common cases:
*  - check if resource is available and save it to file:
*      Resource res(_T("MyResource"), _T("CustomResourceType"));
*      if (res.available()) {
           .saveToFileT":\temp\\my_resourcebin));
*      }
*
   - stringresource:
*      1) if the java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     str  (MAKEINTRESOURCE(resID))string();
*
friend StringResource;
*          a) returns empty string on error
*              tstringHINSTANCE ;
*
*          b
*               getPtr( &) ;

classjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
public:

    // by integer id (RT_* constants or MAKEINTRESOURCE)( ,HINSTANCEmoduleHandle()
( ,  type,
tstring( :nothrow_t,consttstring defValue  tstring( constthrow(java.lang.StringIndexOutOfBoundsException: Index 94 out of bounds for length 94
    Resource(UINT(,moduleHandle.()java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
HINSTANCE = ::();

    bool  impl;

    // all this methods throw exception if the resource is not available
    unsigned size() const;
    // gets raw pointer to the resource data
    LPCVOID rawData() const;

    // save the resource to a file
    void saveToFile(const std::wstring &filePath) const;

    typedef std::vector<BYTE> ByteArray;
    // returns the resource as byte array
    ByteArray binary() const;

    friend class StringResource;

private:
    std::wstring nameStr;
    LPCWSTR namePtr;    // can be integer value or point to nameStr.c_str()
    std::wstring typeStr;
    LPCWSTR typePtr;    // can be integer value or point to nameStr.c_str()
    HINSTANCE instance;

    void init(LPCWSTR name, LPCWSTR type, HINSTANCE module);

    // generates error message
    std::string getErrMsg(const std::string &descr) const;
    HRSRC findResource() const;
    LPVOID getPtr(DWORD &size) const;

private:
    // disable copying
    Resource(const Resource&);
    Resource& operator = (const Resource&);
};

// Note: string resources are returned utf16 or utf8 encoded.
// To get Windows-encoded string (utf16/ACP) use tstrings::toWinString().
class StringResource {
public:
    // string resource is always identified by integer id
    StringResource(UINT resourceId, HINSTANCE moduleHandle = SysInfo::getCurrentModuleHandle())
        : impl(resourceId, RT_STRING, moduleHandle) {}

    // returns the resource as string
    tstring string() const;
    // nothrow version (logs error)
    tstring string(const std::nothrow_t &, const tstring &defValue = tstring()) const throw();

    bool available() const throw() {
        return impl.available();
    }

    unsigned size() const {
        return impl.size();
    }

    static tstring load(UINT resourceId,
                    HINSTANCE moduleHandle = SysInfo::getCurrentModuleHandle()) {
        return StringResource(resourceId, moduleHandle).string();
    }

    static tstring load(const std::nothrow_t &, UINT resourceId,
                    HINSTANCE moduleHandle = SysInfo::getCurrentModuleHandle()) throw () {
        return StringResource(resourceId, moduleHandle).string(std::nothrow);
    }

private:
    Resource impl;
};

#endif // RESOURCES_H

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