find_widget.h

// Aseprite
// Copyright (C) 2001-2015  David Capello
//
// This program is distributed under the terms of
// the End-User License Agreement for Aseprite.

#ifndef APP_FIND_WIDGET_H_INCLUDED
#define APP_FIND_WIDGET_H_INCLUDED
#pragma once

#include "app/widget_not_found.h"
#include "ui/widget.h"

namespace app {

  template<class T>
  inline T* find_widget(ui::Widget* parent, const char* childId) {
    T* child = parent->findChildT<T>(childId);
    if (!child)
      throw WidgetNotFound(childId);

    return child;
  }

  class finder {
  public:
    finder(ui::Widget* parent) : m_parent(parent) {
    }

    finder& operator>>(const char* id) {
      m_lastId = id;
      return *this;
    }

    finder& operator>>(const std::string& id) {
      m_lastId = id;
      return *this;
    }

    template<typename T>
    finder& operator>>(T*& child) {
      child = app::find_widget<T>(m_parent, m_lastId.c_str());
      return *this;
    }

  private:
    ui::Widget* m_parent;
    std::string m_lastId;
  };

} // namespace app

#endif