WindowManager.cpp

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#include "quori_face/WindowManager.hpp"
#include <GLFW/glfw3.h>
 
#include <unordered_map>
 
#include "trace.hpp"
 
using namespace quori_face;
 
namespace
{
  void onWindowClose(GLFWwindow *handle)
  {
    const auto window = WindowManager::ref().lookupByHandle(handle);
    if (!window) return;
    window->close();
  }
 
  void onWindowResize(GLFWwindow* handle, int width, int height)
  {
    const auto window = WindowManager::ref().lookupByHandle(handle);
    if (!window) return;
    glViewport(0, 0, width, height);
  }
}
 
WindowManager::WindowManager()
{
 
}
 
WindowManager::~WindowManager()
{
 
}
 
void WindowManager::attach(const Window::Ptr &window)
{
  for (auto it = windows_.begin(); it != windows_.end(); ++it)
  {
    if (*it == window) return;
  }
 
  QUORI_FACE_TRACE(glfwSetWindowCloseCallback(window->getHandle(), &onWindowClose));
  QUORI_FACE_TRACE(glfwSetFramebufferSizeCallback(window->getHandle(), &onWindowResize));
  windows_.push_back(window);
}
 
void WindowManager::detach(const Window::Ptr &window)
{
  for (auto it = windows_.begin(); it != windows_.end();)
  {
    if (*it == window)
    {
      QUORI_FACE_TRACE(glfwSetWindowCloseCallback((*it)->getHandle(), nullptr));
      QUORI_FACE_TRACE(glfwSetFramebufferSizeCallback((*it)->getHandle(), nullptr));
      it = windows_.erase(it);
      continue;
    }
    
    ++it;
  }
}
 
Window::Ptr WindowManager::lookupByHandle(const GLFWwindow *const handle) const
{
  for (auto it = windows_.begin(); it != windows_.end(); ++it)
  {
    if ((*it)->getHandle() == handle) return *it;
  }
 
  return nullptr;
}
 
WindowManager::WindowList::iterator WindowManager::begin()
{
  return windows_.begin();
}
 
WindowManager::WindowList::iterator WindowManager::end()
{
  return windows_.end();
}
 
WindowManager::WindowList::const_iterator WindowManager::cbegin() const
{
  return windows_.cbegin();
}
 
WindowManager::WindowList::const_iterator WindowManager::cend() const
{
  return windows_.cend();
}
 
WindowManager &WindowManager::ref()
{
  static WindowManager instance;
  return instance;
}