src/renderer/win32/infolist_window.h

// Copyright 2010-2015, Google Inc.
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#ifndef MOZC_RENDERER_WIN32_INFOLIST_WINDOW_H_
#define MOZC_RENDERER_WIN32_INFOLIST_WINDOW_H_

#include <windows.h>
#define _ATL_NO_AUTOMATIC_NAMESPACE
#define _WTL_NO_AUTOMATIC_NAMESPACE
#include <atlbase.h>
#include <atlwin.h>
#include <atlapp.h>
#include <atlcrack.h>
#include <atlmisc.h>
#include <atlgdi.h>

#include <string>

#include "base/const.h"
#include "base/coordinates.h"
#include "base/port.h"
#include "base/scoped_ptr.h"

namespace mozc {

namespace client {
class SendCommandInterface;
}  // namespace client

namespace commands {
class Candidates;
}  // namespace commands

namespace renderer {
class RendererStyle;
namespace win32 {

class TextRenderer;

typedef ATL::CWinTraits<
            WS_POPUP | WS_DISABLED,
            WS_EX_TOOLWINDOW | WS_EX_TOPMOST | WS_EX_NOACTIVATE>
        InfolistWindowTraits;

// a class which implements an IME infolist window for Windows. This class
// is derived from an ATL CWindowImpl<T> class, which provides methods for
// creating a window and handling windows messages.
class InfolistWindow : public ATL::CWindowImpl<InfolistWindow,
                                               ATL::CWindow,
                                               InfolistWindowTraits> {
 public:
  DECLARE_WND_CLASS_EX(kInfolistWindowClassName,
                       CS_SAVEBITS | CS_DROPSHADOW, COLOR_WINDOW);

  BEGIN_MSG_MAP_EX(InfolistWindow)
    MSG_WM_DESTROY(OnDestroy)
    MSG_WM_ERASEBKGND(OnEraseBkgnd)
    MSG_WM_GETMINMAXINFO(OnGetMinMaxInfo)
    MSG_WM_SETTINGCHANGE(OnSettingChange)
    MSG_WM_PAINT(OnPaint)
    MSG_WM_PRINTCLIENT(OnPrintClient)
    MSG_WM_TIMER(OnTimer)
  END_MSG_MAP()

  InfolistWindow();
  ~InfolistWindow();
  void OnDestroy();
  BOOL OnEraseBkgnd(WTL::CDCHandle dc);
  void OnGetMinMaxInfo(MINMAXINFO *min_max_info);
  void OnPaint(WTL::CDCHandle dc);
  void OnPrintClient(WTL::CDCHandle dc, UINT uFlags);
  void OnSettingChange(UINT uFlags, LPCTSTR lpszSection);
  void OnTimer(UINT_PTR nIDEvent);

  void UpdateLayout(const commands::Candidates &candidates);
  void SetSendCommandInterface(
      client::SendCommandInterface *send_command_interface);

  // Layout information for the WindowManager class.
  Size GetLayoutSize();

  void DelayShow(UINT mseconds);
  void DelayHide(UINT mseconds);

 private:
  Size DoPaint(WTL::CDCHandle dc);
  Size DoPaintRow(WTL::CDCHandle dc, int row, int ypos);

  client::SendCommandInterface *send_command_interface_;
  scoped_ptr<commands::Candidates> candidates_;
  scoped_ptr<TextRenderer> text_renderer_;
  scoped_ptr<renderer::RendererStyle> style_;
  bool metrics_changed_;
  bool visible_;

  DISALLOW_COPY_AND_ASSIGN(InfolistWindow);
};
}  // namespace win32
}  // namespace renderer
}  // namespace mozc
#endif  // MOZC_RENDERER_WIN32_INFOLIST_WINDOW_H_