CMake/Source/CursesDialog/cmCursesForm.h

/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file LICENSE.rst or https://cmake.org/licensing for details.  */
#pragma once

#include "cmConfigure.h" // IWYU pragma: keep

#include <string>

#include "cmsys/FStream.hxx"

#include "cmCursesStandardIncludes.h"

class cmCursesForm
{
public:
  cmCursesForm();
  virtual ~cmCursesForm();

  cmCursesForm(cmCursesForm const&) = delete;
  cmCursesForm& operator=(cmCursesForm const&) = delete;

  // Description:
  // Handle user input.
  virtual void HandleInput() = 0;

  // Description:
  // Display form.
  virtual void Render(int left, int top, int width, int height) = 0;

  // Description:
  // This method should normally  called only by the form.
  // The only exception is during a resize.
  virtual void UpdateStatusBar() = 0;

  // Description:
  // During a CMake run, an error handle should add errors
  // to be displayed afterwards.
  virtual void AddError(std::string const&, char const*) {}

  // Description:
  // Turn debugging on. This will create ccmakelog.txt.
  static void DebugStart();

  // Description:
  // Turn debugging off. This will close ccmakelog.txt.
  static void DebugEnd();

  // Description:
  // Write a debugging message.
  static void LogMessage(char const* msg);

  // Description:
  // Return the FORM. Should be only used by low-level methods.
  FORM* GetForm() { return this->Form; }

  static cmCursesForm* CurrentForm;

  // Description:
  // Handle resizing the form with curses.
  void HandleResize();

protected:
  static cmsys::ofstream DebugFile;
  static bool Debug;

  FORM* Form;
};