c++ - 在 Adob​​e XMP SDK 中找不到 SXMPMeta

Question

我正在尝试编写一个简单的 Qt Widget 应用程序，它允许我使用 Qt 框架 && Adobe XMP SDK 在 OS X 10.10 上。

我是菜鸟，绝不是 C++ 专业人士 (并且具有 C++ 和 Qt 的基本/中级自学知识，这意味着我在尝试时依赖于 google做某事，有时最终会使用可以简化的坏习惯或代码)

1. 我已经从 Adob​​e 下载并构建了 XMP SDK，并构建了部分示例

(由于某种原因我无法构建其他的，但现在这不是那么重要)。

1. 我已经构建了库的静态 64 位版本(libXMPCoreStatic.a && libXMPFilesStatic.h)

2. 连同公用文件夹中的 include 文件夹，我将它们放在了我的 Qt Widget App 项目 的文件夹中的子文件夹 Framework

3. 我已将这些库链接到我的项目(在我的 .pro 文件中):

   LIBS += -L$$PWD/XMPFramework/ -lXMPCoreStatic
   LIBS += -lXMPFilesStatic
   
   INCLUDEPATH += $$PWD/XMPFramework/include/
   DEPENDPATH += $$PWD/XMPFramework/
   
   PRE_TARGETDEPS += $$PWD/XMPFramework/libXMPCoreStatic.a
   PRE_TARGETDEPS += $$PWD/XMPFramework/libXMPFilesStatic.a
   

4. 我已将 XMP 包含在我的应用程序中(基本应用程序仅用于测试我是否可以连接和使用 XMP SDK 的一些基础知识)- mainwindow.cpp:

   #include "mainwindow.h"
   #include "ui_mainwindow.h"
   #include <cstdio>
   #include <string>
   #include <cstring>
   
   #define MAC_ENV 1 //don't know why, but when I don't explicitly
                     //define this, then the app won't build
   
   // Must be defined to instantiate template classes
   //#define TXMP_STRING_TYPE std::string
   
   //when used, I get whole range of errors, there's a sample at the end of the question
   
   // Must be defined to give access to XMPFiles
   #define XMP_INCLUDE_XMPFILES 1
   
   #include <XMP.incl_cpp> //XMP INCLUDE
   #include <XMP.hpp>      //XMP INCLUDE
   
   MainWindow::MainWindow(QWidget *parent) :
               QMainWindow(parent),
               ui(new Ui::MainWindow)
   {
      ui->setupUi(this);
   
   
      //this if is taken from the sample code
      //for the SDK, the problem is that
      //my project does not know the SXMPMeta
      //but seems to know at least part of the SDK
      //because at least part of the classes and methods
      //are visible through the intellisense
      if(!SXMPMeta::Initialize())
      {
         //the project does not react to SXMPMeta
         //and does not know it, even though the
         //XCode project I've built from the SDK's samples
         //seems to be ok
         ...
      }
   }
   
   ...the rest omitted for brevity...
   

   您是否看到我犯的一些错误或 SXMPMeta 类不存在的原因？

---

我尝试使用 #define TXMP_STRING_TYPE std::string 时遇到的错误示例.我的想法是它与模板化 XMP 类的初始化有关

Undefined symbols for architecture x86_64:
  "_CFBundleCopyExecutableArchitectures", referenced from:
      XMP_PLUGIN::IsValidLibrary(std::string const&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFBundleCopyResourceURL", referenced from:
      XMP_PLUGIN::GetResourceDataFromModule(__CFBundle*, std::string const&, std::string const&, std::string&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFBundleCreate", referenced from:
      XMP_PLUGIN::IsValidLibrary(std::string const&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
      XMP_PLUGIN::LoadModule(std::string const&, bool) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFBundleGetFunctionPointerForName", referenced from:
      XMP_PLUGIN::GetFunctionPointerFromModuleImpl(__CFBundle*, char const*) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFBundleIsExecutableLoaded", referenced from:
      XMP_PLUGIN::LoadModule(std::string const&, bool) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFBundleLoadExecutableAndReturnError", referenced from:
      XMP_PLUGIN::LoadModule(std::string const&, bool) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFDataGetBytes", referenced from:
      XMP_PLUGIN::GetResourceDataFromModule(__CFBundle*, std::string const&, std::string const&, std::string&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFNumberGetValue", referenced from:
      XMP_PLUGIN::GetResourceDataFromModule(__CFBundle*, std::string const&, std::string const&, std::string&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFRelease", referenced from:
      XMP_PLUGIN::IsValidLibrary(std::string const&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
      XMP_PLUGIN::LoadModule(std::string const&, bool) in libXMPFilesStatic.a(OS_Utils_Mac.o)
      XMP_PLUGIN::UnloadModule(__CFBundle*, bool) in libXMPFilesStatic.a(OS_Utils_Mac.o)
      XMP_PLUGIN::GetFunctionPointerFromModuleImpl(__CFBundle*, char const*) in libXMPFilesStatic.a(OS_Utils_Mac.o)
      XMP_PLUGIN::GetResourceDataFromModule(__CFBundle*, std::string const&, std::string const&, std::string&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFStringCreateWithCString", referenced from:
      XMP_PLUGIN::GetFunctionPointerFromModuleImpl(__CFBundle*, char const*) in libXMPFilesStatic.a(OS_Utils_Mac.o)
      XMP_PLUGIN::GetResourceDataFromModule(__CFBundle*, std::string const&, std::string const&, std::string&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFURLCreateDataAndPropertiesFromResource", referenced from:
      XMP_PLUGIN::GetResourceDataFromModule(__CFBundle*, std::string const&, std::string const&, std::string&) in libXMPFilesStatic.a(OS_Utils_Mac.o)
  "_CFURLCreateFromFileSystemRepresentation", referenced from:
      XMP_PLUGIN::IsValidLibrary(std::string const&) in libXMPFilesStatic.a(OS_Utils_Mac.o)

When executing step 'Make'

Answer 1

TXMPFiles是一个模板。 SXMPFiles是TXMPFiles<std::string> .以下代码出现在 XMP Toolkit 2016.07 示例之一的开头:

// Must be defined to instantiate template classes
#define TXMP_STRING_TYPE std::string 

// Must be defined to give access to XMPFiles
#define XMP_INCLUDE_XMPFILES 1 

// Ensure XMP templates are instantiated
#include "public/include/XMP.incl_cpp"

// Provide access to the API
#include "public/include/XMP.hpp"