C++ WVBoxLayout::addLayout方法代码示例

void SimpleChatWidget::createLayout(WWidget *messages, WWidget *userList,
				    WWidget *messageEdit,
				    WWidget *sendButton, WWidget *logoutButton)
{
  /*
   * Create a vertical layout, which will hold 3 rows,
   * organized like this:
   *
   * WVBoxLayout
   * --------------------------------------------
   * | nested WHBoxLayout (vertical stretch=1)  |
   * |                              |           |
   * |  messages                    | userList  |
   * |   (horizontal stretch=1)     |           |
   * |                              |           |
   * --------------------------------------------
   * | message edit area                        |
   * --------------------------------------------
   * | WHBoxLayout                              |
   * | send | logout                            |
   * --------------------------------------------
   */
  WVBoxLayout *vLayout = new WVBoxLayout();

  // Create a horizontal layout for the messages | userslist.
  WHBoxLayout *hLayout = new WHBoxLayout();

  // Add widget to horizontal layout with stretch = 1
  hLayout->addWidget(messages, 1);
  messages->setStyleClass("chat-msgs");

    // Add another widget to horizontal layout with stretch = 0
  hLayout->addWidget(userList);
  userList->setStyleClass("chat-users");

  hLayout->setResizable(0, true);

  // Add nested layout to vertical layout with stretch = 1
  vLayout->addLayout(hLayout, 1);

  // Add widget to vertical layout with stretch = 0
  vLayout->addWidget(messageEdit);
  messageEdit->setStyleClass("chat-noedit");

  // Create a horizontal layout for the buttons.
  hLayout = new WHBoxLayout();

  // Add button to horizontal layout with stretch = 0
  hLayout->addWidget(sendButton);

  // Add button to horizontal layout with stretch = 0
  hLayout->addWidget(logoutButton);

  // Add nested layout to vertical layout with stretch = 0
  vLayout->addLayout(hLayout, 0, AlignLeft);

  setLayout(vLayout);
}

void SimpleChatWidget::letLogin()
{
  disconnect();

  clear();

  WVBoxLayout *vLayout = new WVBoxLayout();
  setLayout(vLayout, AlignLeft | AlignTop);

  WHBoxLayout *hLayout = new WHBoxLayout();
  vLayout->addLayout(hLayout);

  hLayout->addWidget(new WLabel("User name:"), 0, AlignMiddle);
  hLayout->addWidget(userNameEdit_ = new WLineEdit(user_), 0, AlignMiddle);
  userNameEdit_->setFocus();

  WPushButton *b = new WPushButton("Login");
  hLayout->addWidget(b, 0, AlignMiddle);

  b->clicked().connect(this, &SimpleChatWidget::login);
  userNameEdit_->enterPressed().connect(this, &SimpleChatWidget::login);

  vLayout->addWidget(statusMsg_ = new WText());
  statusMsg_->setTextFormat(PlainText);
}

  /*! \brief Constructor.
   */
  GitViewApplication(const WEnvironment& env) 
    : WApplication(env)
  {
    useStyleSheet("gitview.css");
    setTitle("Git model example");

    const char *gitRepo = getenv("GITVIEW_REPOSITORY_PATH");

    WGridLayout *grid = new WGridLayout();
    grid->addWidget(new WText("Git repository path:"), 0, 0);
    grid->addWidget(repositoryEdit_ = new WLineEdit(gitRepo ? gitRepo : "")
		    , 0, 1, AlignLeft);
    grid->addWidget(repositoryError_ = new WText(), 0, 2);
    grid->addWidget(new WText("Revision:"), 1, 0);
    grid->addWidget(revisionEdit_ = new WLineEdit("master"), 1, 1, AlignLeft);
    grid->addWidget(revisionError_ = new WText(), 1, 2);

    repositoryEdit_->setTextSize(30);
    revisionEdit_->setTextSize(20);
    repositoryError_->setStyleClass("error-msg");
    revisionError_->setStyleClass("error-msg");

    repositoryEdit_->enterPressed()
      .connect(this, &GitViewApplication::loadGitModel);
    revisionEdit_->enterPressed()
      .connect(this, &GitViewApplication::loadGitModel);

    WPushButton *b = new WPushButton("Load");
    b->clicked().connect(this, &GitViewApplication::loadGitModel);
    grid->addWidget(b, 2, 0, AlignLeft);

    gitView_ = new WTreeView();
    gitView_->resize(300, WLength::Auto);
    gitView_->setSortingEnabled(false);
    gitView_->setModel(gitModel_ = new GitModel(this));
    gitView_->setSelectionMode(SingleSelection);
    gitView_->selectionChanged().connect(this, &GitViewApplication::showFile);

    sourceView_ = new SourceView(DisplayRole, 
				 GitModel::ContentsRole, 
				 GitModel::FilePathRole);
    sourceView_->setStyleClass("source-view");

    if (environment().javaScript()) {
      /*
       * We have JavaScript: We can use layout managers so everything will
       * always fit nicely in the window.
       */
      WVBoxLayout *topLayout = new WVBoxLayout();
      topLayout->addLayout(grid, 0, AlignTop | AlignLeft);

      WHBoxLayout *gitLayout = new WHBoxLayout();
      gitLayout->setLayoutHint("table-layout", "fixed");
      gitLayout->addWidget(gitView_, 0);
      gitLayout->addWidget(sourceView_, 1);
      topLayout->addLayout(gitLayout, 1);

      root()->setLayout(topLayout);
      root()->setStyleClass("maindiv");
    } else {
      /*
       * No JavaScript: let's make the best of the situation using regular
       * CSS-based layout
       */
      root()->setStyleClass("maindiv");
      WContainerWidget *top = new WContainerWidget();
      top->setLayout(grid, AlignTop | AlignLeft);
      root()->addWidget(top);
      root()->addWidget(gitView_);
      gitView_->setFloatSide(Left);
      gitView_->setMargin(6);
      root()->addWidget(sourceView_);
      sourceView_->setMargin(6);
    }
  }

WWidget *StyleLayout::wBoxLayout()
{
  WContainerWidget *result = new WContainerWidget();
  topic("WHBoxLayout", "WVBoxLayout", result);

  addText(tr("layout-WBoxLayout"), result);

  WContainerWidget *container;
  WText *item;
  WHBoxLayout *hbox;
  WVBoxLayout *vbox;

  /*
   * first hbox
   */
  container = new WContainerWidget(result);
  container->setStyleClass("yellow-box");
  hbox = new WHBoxLayout();
  container->setLayout(hbox);

  item = addText(tr("layout-item1"));
  item->setStyleClass("green-box");
  hbox->addWidget(item);
  
  item = addText(tr("layout-item2"));
  item->setStyleClass("blue-box");
  hbox->addWidget(item);

  addText(tr("layout-WBoxLayout-stretch"), result);

  /*
   * second hbox
   */
  container = new WContainerWidget(result);
  container->setStyleClass("yellow-box");
  hbox = new WHBoxLayout();
  container->setLayout(hbox);

  item = addText(tr("layout-item1"));
  item->setStyleClass("green-box");
  hbox->addWidget(item, 1);
  
  item = addText(tr("layout-item2"));
  item->setStyleClass("blue-box");
  hbox->addWidget(item);

  addText(tr("layout-WBoxLayout-vbox"), result);

  /*
   * first vbox
   */
  container = new WContainerWidget(result);
  container->resize(150, 150);
  container->setStyleClass("yellow-box centered");
  vbox = new WVBoxLayout();
  container->setLayout(vbox);

  item = addText(tr("layout-item1"));
  item->setStyleClass("green-box");
  vbox->addWidget(item);
  
  item = addText(tr("layout-item2"));
  item->setStyleClass("blue-box");
  vbox->addWidget(item);

  /*
   * second vbox
   */
  container = new WContainerWidget(result);
  container->resize(150, 150);
  container->setStyleClass("yellow-box centered");
  vbox = new WVBoxLayout();
  container->setLayout(vbox);

  item = addText(tr("layout-item1"));
  item->setStyleClass("green-box");
  vbox->addWidget(item, 1);
  
  item = addText(tr("layout-item2"));
  item->setStyleClass("blue-box");
  vbox->addWidget(item);

  addText(tr("layout-WBoxLayout-nested"), result);

  /*
   * nested boxes
   */
  container = new WContainerWidget(result);
  container->resize(200, 200);
  container->setStyleClass("yellow-box centered");

  vbox = new WVBoxLayout();
  container->setLayout(vbox);

  item = addText(tr("layout-item1"));
  item->setStyleClass("green-box");
  vbox->addWidget(item, 1);

  hbox = new WHBoxLayout();
  vbox->addLayout(hbox);
//.........这里部分代码省略.........

///
//  Constructor
//
LoginPage::LoginPage(WContainerWidget *parent) :
    WContainerWidget(parent),
    mLoggedIn(false),
    mLogoutRequested(false)
{
    setStyleClass("maindiv");

    WLabel* loginText = new WLabel("Enter username and password:");

    mUserNameLineEdit = new WLineEdit("");
    WText *userNameText = new WText("User Name:");

    mPasswordLineEdit = new WLineEdit("");
    mPasswordLineEdit->setEchoMode(WLineEdit::Password);

    WText *passwordText = new WText("Password:");

    WPushButton *loginButton = new WPushButton("Login");

    WGridLayout *loginLayout = new WGridLayout();
    loginLayout->addWidget(userNameText, 0, 0, AlignRight);
    loginLayout->addWidget(mUserNameLineEdit, 0, 1, AlignLeft);
    loginLayout->addWidget(passwordText, 1, 0, AlignRight);
    loginLayout->addWidget(mPasswordLineEdit, 1, 1, AlignLeft);

    WGridLayout *textLayout = new WGridLayout();
    textLayout->addWidget(loginText, 0, 0, AlignCenter);

    WGridLayout *buttonLayout = new WGridLayout();
    buttonLayout->addWidget(loginButton, 0, 0, AlignCenter | AlignMiddle);

    WImage *chbLogo = new WImage(tr("logo-image").toUTF8());
    WGridLayout *chbLogoLayout = new WGridLayout();
    chbLogoLayout->addWidget(chbLogo, 0, 0, AlignCenter);

    WLabel *titleLabel = new WLabel(tr("page-top-text"));
    titleLabel->setStyleClass("logintitlediv");
    WGridLayout *titleLayout = new WGridLayout();
    titleLayout->addWidget(titleLabel, 0, 0, AlignCenter);

    WContainerWidget *loginContainer = new WContainerWidget();
    loginContainer->setStyleClass("logindiv");

    mFailureLabel = new WLabel("Invalid username and/or password.  Try again.");
    mFailureLabel->setStyleClass("redtext");

    WVBoxLayout *layout = new WVBoxLayout();
    layout->addLayout(chbLogoLayout, AlignCenter);
    layout->addLayout(titleLayout, AlignCenter);
    layout->addLayout(textLayout, AlignCenter);
    layout->addLayout(loginLayout);
    layout->addWidget(mFailureLabel);
    layout->addLayout(buttonLayout, AlignCenter | AlignMiddle);

    mFailureLabel->hide();

    loginContainer->setLayout(layout, AlignTop);

    WVBoxLayout *pageLayout = new WVBoxLayout();
    pageLayout->addWidget(loginContainer);
    pageLayout->addWidget(new WText(tr("login-page-text")));

    setLayout(pageLayout, AlignMiddle | AlignCenter);

    loginButton->clicked().connect(SLOT(this, LoginPage::login));
    mPasswordLineEdit->enterPressed().connect(SLOT(this, LoginPage::login));

    resetAll();
}