1 文本编辑器创建工具栏

在MainWindow.h中增加如下函数声明：

bool initToolBar();
bool initFileToolItem(QToolBar* tb);
bool initEditToolItem(QToolBar* tb);
bool initFormatToolItem(QToolBar* tb);
bool initViewToolItem(QToolBar* tb);
bool makeAction(QAction*& action, QString tip, QString icon);

MainWindow.h中实现上面的函数：

bool MainWindow::initToolBar()
{
    bool ret = true;
    QToolBar* tb = addToolBar("Tool Bar");

    tb->setIconSize(QSize(16, 16));

    ret = ret && initFileToolItem(tb);

    tb->addSeparator();

    ret = ret && initEditToolItem(tb);

    tb->addSeparator();

    ret = ret && initFormatToolItem(tb);

    tb->addSeparator();

    ret = ret && initViewToolItem(tb);

    return ret;
}

bool MainWindow::initFileToolItem(QToolBar* tb)
{
    bool ret = true;
    QAction* action = NULL;

    ret = ret && makeAction(action, "New", ":/res/pic/new.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Open", ":/res/pic/open.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Save", ":/res/pic/save.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Save As", ":/res/pic/saveas.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Print", ":/res/pic/print.png");

    if( ret )
    {
        tb->addAction(action);
    }


    return ret;
}

bool MainWindow::initEditToolItem(QToolBar* tb)
{
    bool ret = true;
    QAction* action = NULL;

    ret = ret && makeAction(action, "Undo", ":/res/pic/undo.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Redo", ":/res/pic/redo.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Cut", ":/res/pic/cut.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Copy", ":/res/pic/copy.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Paste", ":/res/pic/paste.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Find", ":/res/pic/find.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Replace", ":/res/pic/replace.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Goto", ":/res/pic/goto.png");

    if( ret )
    {
        tb->addAction(action);
    }

    return ret;
}

bool MainWindow::initFormatToolItem(QToolBar* tb)
{
    bool ret = true;
    QAction* action = NULL;

    ret = ret && makeAction(action, "Auto Wrap", ":/res/pic/wrap.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Font", ":/res/pic/font.png");

    if( ret )
    {
        tb->addAction(action);
    }

    return ret;
}

bool MainWindow::initViewToolItem(QToolBar* tb)
{
    bool ret = true;
    QAction* action = NULL;

    ret = ret && makeAction(action, "Tool Bar", ":/res/pic/tool.png");

    if( ret )
    {
        tb->addAction(action);
    }

    ret = ret && makeAction(action, "Status Bar", ":/res/pic/status.png");

    if( ret )
    {
        tb->addAction(action);
    }

    return ret;
}

bool MainWindow::makeAction(QAction*& action, QString text, int key)
{
    bool ret = true;

    action = new QAction(text, NULL);

    if( action != NULL )
    {
        action->setShortcut(QKeySequence(key));
    }
    else
    {
        ret = false;
    }

    return ret;
}

bool MainWindow::makeAction(QAction*& action, QString tip, QString icon)
{
    bool ret = true;

    action = new QAction("", NULL);

    if( action != NULL )
    {
        action->setToolTip(tip);
        action->setIcon(QIcon(icon));
    }
    else
    {
        ret = false;
    }

    return ret;
}

修改MainWindow::construct函数的实现：

bool MainWindow::construct()
{
    bool ret = true;

    ret = ret && initMenuBar();
    ret = ret && initToolBar();

    return ret;
}

参考资料：

1. QT实验分析教程