C++ LargeTextWindow类代码示例

void
RowFormWidget::AddMultiLine(const TCHAR *text)
{
  assert(IsDefined());

  const PixelRect rc =
    InitialControlRect(Layout::GetMinimumControlHeight());

  LargeTextWindowStyle style;
  if (IsEmbedded() || Layout::scale_1024 < 2048)
    /* sunken edge doesn't fit well on the tiny screen of an embedded
       device */
    style.Border();
  else
    style.SunkenEdge();

  PanelControl &panel = *(PanelControl *)GetWindow();
  LargeTextWindow *ltw = new LargeTextWindow();
  ltw->Create(panel, rc, style);
  ltw->SetFont(*look.text_font);

  if (text != nullptr)
    ltw->SetText(text);

  Add(Row::Type::MULTI_LINE, ltw);
}

void
FontEditWidget::Prepare(ContainerWindow &parent, const PixelRect &rc)
{
  RowFormWidget::Prepare(parent, rc);

#ifdef USE_GDI
  WndProperty *wp = AddEnum(_("Font face"), NULL, this);
  {
    DataFieldEnum &df = *(DataFieldEnum *)wp->GetDataField();
    df.addEnumText(_T("Tahoma"));
    df.addEnumText(_T("TahomaBD"));
    df.addEnumText(_T("DejaVu Sans Condensed"));
  }
#else
  /* we cannot obtain a list of fonts on SDL/OpenGL currently */
#endif

  AddInteger(_("Height"), NULL, _T("%d"), _T("%d"), 1, 200, 1, 0, this);
  AddBoolean(_("Bold"), NULL, false, this);
  AddBoolean(_("Italic"), NULL, false, this);

  PixelRect preview_rc { 0, 0, Layout::Scale(250), Layout::Scale(100) };
  LargeTextWindowStyle preview_style;
  preview_style.Border();
  LargeTextWindow *preview = new LargeTextWindow();
  preview->Create((ContainerWindow &)GetWindow(), preview_rc, preview_style);
  Add(preview);

  Load();
}

static bool
FormKeyDown(unsigned key_code)
{
  switch (key_code) {
    LargeTextWindow *edit;

  case KEY_UP:
    edit = FindLargeTextWindow();
    if (edit != NULL) {
      edit->ScrollVertically(-3);
      return true;
    } else
      return false;

  case KEY_DOWN:
    edit = FindLargeTextWindow();
    if (edit != NULL) {
      edit->ScrollVertically(3);
      return true;
    } else
      return false;

  case KEY_LEFT:
#ifdef GNAV
  case '6':
#endif
    tab->PreviousPage();
    return true;

  case KEY_RIGHT:
#ifdef GNAV
  case '7':
#endif
    tab->NextPage();
    return true;

  default:
    return false;
  }
}

void 
dlgWaypointDetailsShowModal(const Waypoint &_waypoint,
                            bool allow_navigation)
{
  waypoint = &_waypoint;

  form = LoadDialog(CallBackTable, UIGlobals::GetMainWindow(),
                  Layout::landscape ? _T("IDR_XML_WAYPOINTDETAILS_L") :
                                      _T("IDR_XML_WAYPOINTDETAILS"));
  assert(form != nullptr);

  LastUsedWaypoints::Add(_waypoint);

  UpdateCaption();

  form->SetKeyDownFunction(FormKeyDown);

  info_widget = (DockWindow *)form->FindByName(_T("info"));
  assert(info_widget != nullptr);
  info_widget->SetWidget(new WaypointInfoWidget(UIGlobals::GetDialogLook(),
                                          _waypoint));

  commands_widget = (DockWindow *)form->FindByName(_T("commands"));
  assert(commands_widget != nullptr);
  commands_widget->SetWidget(new WaypointCommandsWidget(UIGlobals::GetDialogLook(),
                                                 form, _waypoint,
                                                 protected_task_manager));
  commands_widget->Hide();

  details_panel = form->FindByName(_T("frmDetails"));
  assert(details_panel != nullptr);

  ListControl *wFilesList = (ListControl *)form->FindByName(_T("Files"));
  assert(wFilesList != nullptr);

  LargeTextWindow *wDetailsText = (LargeTextWindow *)
    form->FindByName(_T("Details"));
  assert(wDetailsText != nullptr);
  wDetailsText->SetText(waypoint->details.c_str());

#ifdef ANDROID
  WaypointExternalFileListHandler handler;
  int num_files = std::distance(waypoint->files_external.begin(),
                                waypoint->files_external.end());
  if (num_files > 0) {
    wFilesList->SetItemRenderer(&handler);
    wFilesList->SetCursorHandler(&handler);

    unsigned list_height = wFilesList->GetItemHeight() * std::min(num_files, 5);
    wFilesList->Resize(wFilesList->GetWidth(), list_height);
    wFilesList->SetLength(num_files);

    PixelRect rc = wDetailsText->GetPosition();
    rc.top += list_height;
    wDetailsText->Move(rc);
  } else
#endif
    wFilesList->Hide();

  image_window = (PaintWindow *)form->FindByName(_T("frmImage"));
  assert(image_window != nullptr);
  magnify_button = (WndButton *)form->FindByName(_T("cmdMagnify"));
  assert(magnify_button != nullptr);
  shrink_button = (WndButton *)form->FindByName(_T("cmdShrink"));
  assert(shrink_button != nullptr);

  if (!allow_navigation) {
    for (const TCHAR *button_name :
         { _T("cmdPrev"), _T("cmdNext"), _T("cmdGoto") }) {
      Window *button = form->FindByName(button_name);
      assert(button != nullptr);
      button->Hide();
    }
  }

  for (auto it = waypoint->files_embed.begin(),
       it_end = waypoint->files_embed.end();
       it != it_end && !images.full(); it++) {
    TCHAR path[MAX_PATH];
    LocalPath(path, it->c_str());
    if (!images.append().LoadFile(path))
      images.shrink(images.size() - 1);
  }

  last_page = 2 + images.size();

  page = 0;
  UpdatePage();

  form->ShowModal();

  delete form;

  for (auto image = images.begin(); image < images.end(); image++)
    image->Reset();

  images.clear();
}

  void Move(const PixelRect &rc) override {
    const Layout layout(rc, waypoint);

    if (allow_navigation)
      goto_button.Move(layout.goto_button);

    if (!images.empty()) {
      magnify_button.Move(layout.magnify_button);
      shrink_button.Move(layout.shrink_button);
    }

    if (allow_navigation) {
      previous_button.Move(layout.previous_button);
      next_button.Move(layout.next_button);
    }

    close_button.Move(layout.close_button);

    info_dock.Move(layout.main);
    details_panel.Move(layout.main);
    details_text.Move(layout.details_text);
#ifdef HAVE_RUN_FILE
    if (!waypoint.files_external.empty())
      file_list.Move(layout.file_list);
#endif
    commands_dock.Move(layout.main);

    if (!images.empty())
      image_window.Move(layout.main);
  }

  void Show(const PixelRect &rc) override {
    const Layout layout(rc, *waypoint);

    if (task_manager != nullptr)
      goto_button.MoveAndShow(layout.goto_button);

    if (!images.empty()) {
      magnify_button.MoveAndShow(layout.magnify_button);
      shrink_button.MoveAndShow(layout.shrink_button);
    }

    previous_button.MoveAndShow(layout.previous_button);
    next_button.MoveAndShow(layout.next_button);

    close_button.MoveAndShow(layout.close_button);

    info_dock.Move(layout.main);
    details_panel.Move(layout.main);
    details_text.Move(layout.details_text);
#ifdef HAVE_RUN_FILE
    if (!waypoint->files_external.empty())
      file_list.Move(layout.file_list);
#endif

    commands_dock.Move(layout.main);

    if (!images.empty())
      image_window.Move(layout.main);

    UpdatePage();
  }

void
WaypointDetailsWidget::Prepare(ContainerWindow &parent, const PixelRect &rc)
{
  for (const auto &i : waypoint.files_embed) {
    if (images.full())
      break;

    try {
      if (!images.append().LoadFile(LocalPath(i.c_str())))
        images.shrink(images.size() - 1);
    } catch (const std::exception &e) {
      LogFormat("Failed to load %s: %s",
                (const char *)NarrowPathName(Path(i.c_str())),
                e.what());
      images.shrink(images.size() - 1);
    }
  }

  const Layout layout(rc, waypoint);

  WindowStyle dock_style;
  dock_style.Hide();
  dock_style.ControlParent();

  WindowStyle button_style;
  button_style.Hide();
  button_style.TabStop();

  if (allow_navigation)
    goto_button.Create(parent, look.button, _("GoTo"), layout.goto_button,
                       button_style, *this, GOTO);

  if (!images.empty()) {
    magnify_button.Create(parent, layout.magnify_button, button_style,
                          new SymbolButtonRenderer(look.button, _T("+")),
                          *this, MAGNIFY);
    shrink_button.Create(parent, layout.shrink_button, button_style,
                         new SymbolButtonRenderer(look.button, _T("-")),
                         *this, SHRINK);
  }

  if (allow_navigation) {
    previous_button.Create(parent, layout.previous_button, button_style,
                           new SymbolButtonRenderer(look.button, _T("<")),
                           *this, PREVIOUS);
    next_button.Create(parent, layout.next_button, button_style,
                       new SymbolButtonRenderer(look.button, _T(">")),
                       *this, NEXT);
  }

  close_button.Create(parent, look.button, _("Close"), layout.close_button,
                      button_style, dialog, mrOK);

  info_dock.Create(parent, layout.main, dock_style);
  info_dock.SetWidget(&info_widget);

  details_panel.Create(parent, look, layout.main, dock_style);
  details_text.Create(details_panel, layout.details_text);
  details_text.SetFont(look.text_font);
  details_text.SetText(waypoint.details.c_str());

#ifdef HAVE_RUN_FILE
  const unsigned num_files = std::distance(waypoint.files_external.begin(),
                                           waypoint.files_external.end());
  if (num_files > 0) {
    file_list.Create(details_panel, layout.file_list,
                     WindowStyle(), layout.file_list_item_height);
    file_list.SetItemRenderer(&file_list_handler);
    file_list.SetCursorHandler(&file_list_handler);
    file_list.SetLength(num_files);
  }
#endif

  commands_dock.Create(parent, layout.main, dock_style);
  commands_dock.SetWidget(&commands_widget);

  if (!images.empty())
    image_window.Create(parent, layout.main, dock_style,
                        [this](Canvas &canvas, const PixelRect &rc){
                          OnImagePaint(canvas, rc);
                        });

  last_page = 2 + images.size();
}