C++ QScrollArea::setLayout方法代码示例

void moviemanager::setupUserInterface()
{
    mainWindow = new QWidget(this);
    mainHLayout = new QHBoxLayout(mainWindow);

    firstVLayout = new QVBoxLayout(mainWindow);
    secondVLayout = new QVBoxLayout(mainWindow);
    thirdVLayout = new QVBoxLayout(mainWindow);
    mainHLayout->addItem(firstVLayout);
    mainHLayout->addItem(secondVLayout);
    mainHLayout->addItem(thirdVLayout);
    //add layouting information here

    //adding widgets into the firstVLayout
    //adding searchbar
    QHBoxLayout* searchHLayout = new QHBoxLayout(mainWindow);
    firstVLayout->addItem(searchHLayout);
    searchHLayout->addWidget(new QLabel("Search:", mainWindow));
    searchBar = new KLineEdit("", mainWindow);
    searchHLayout->addWidget(searchBar);
    searchHLayout->setAlignment(Qt::AlignTop); //searchbar alignment
    //connecting searchbar return pressed to a slot
    if(connect(searchBar,
               SIGNAL(returnPressed(QString)),
               this,
               SLOT(slotSearchBarReturnPressed(QString))) == false)
    {
        qDebug() << "searchBar connect is not successful";
    }

    //adding klistwidget for displaying movies
    mainMovieList = new KListWidget(mainWindow);
    mainMovieList->setSortingEnabled(true);
    fetchAllMovieList(mainMovieList);
    firstVLayout->addWidget(mainMovieList);
    //connecting the mainMovieList signal to a slot
    if(connect(mainMovieList,
               SIGNAL(activated(QModelIndex)),
               this,
               SLOT(slotMovieClicked(QModelIndex))) == false)
    {
        qDebug() << "mainMovieList connect is not successful";
    }

    //adding widgets into secondVLayout
    secondVLayout->addWidget(new QLabel("<span style='font-size: 20px;'>Movie Details</span>", mainWindow));
    QScrollArea * scrollArea = new QScrollArea(mainWindow);
    //scrollArea->setLayout();
    //scrollArea->setAlignment(Qt::AlignBottom);
    secondVLayout->addWidget(scrollArea);
    scrollArea->setWidgetResizable(false);
    //scrollArea->setVerticalScrollBar(new QScrollBar());
    middleInnerWidget = new QWidget(mainWindow);
    //middleInnerWidget->setMaximumHeight(50);
    scrollArea->setWidget(middleInnerWidget);
    //secondVLayout->addWidget(middleInnerWidget);
    middleInnerVLayout = new QVBoxLayout(middleInnerWidget);
    scrollArea->setLayout(middleInnerVLayout);
    QLabel* tempTitle = new QLabel("<span style='font-size: 20px;'>Title</span>", middleInnerWidget);
    tempTitle->setAlignment(Qt::AlignTop);
    middleInnerVLayout->addWidget(tempTitle);

    artwork = new QWebView(middleInnerWidget);
    artwork->load(QUrl("file:///home/sandeep/.moviemanager/tt0000000.jpg"));
    artwork->setMinimumSize(320,474);
    artwork->setMaximumSize(320,474);
    middleInnerVLayout->addWidget(artwork);


    //adding widgets into thirdVLayout
    thirdVLayout->addWidget(new QLabel("<span style='font-size: 20px;'>Recommended Movies</span>", mainWindow));
    recoMovieList = new KListWidget(mainWindow);
    recoMovieList->setSortingEnabled(true);
    fetchRecoMovieList(recoMovieList);
    thirdVLayout->addWidget(recoMovieList);
    //connecting the mainMovieList signal to a slot
    if(connect(recoMovieList,
               SIGNAL(activated(QModelIndex)),
               this,
               SLOT(slotMovieClicked(QModelIndex))) == false)
    {
        qDebug() << "recoMovieList connect is not successful";
    }



    setCentralWidget(mainWindow);
}

void LogDetailWidget::showEditHistory()
{
	QModelIndex index = ui.aaView->currentIndex();
	if(index.row() <0) return;

	QAbstractItemModel* model = ui.aaView->model();

	QString timestamp = model->data(model->index(index.row(), 0), Qt::DisplayRole).toString();
	QString compName = model->data(model->index(index.row(), 2), Qt::DisplayRole).toString();
	QString type = model->data(model->index(index.row(), 4), Qt::DisplayRole).toString();
	QString value = model->data(model->index(index.row(), 5), Qt::DisplayRole).toString();

	QWidget *histWidget = new QWidget;
	histWidget->resize(QSize(800,600));
	QVBoxLayout *boxlayout = new QVBoxLayout;
	QScrollArea* area = new QScrollArea;
	QGridLayout *gridLayout = new QGridLayout;
	QLabel* fileLabel = new QLabel;
	fileLabel->setText("Source Code File: " + compName);
	gridLayout->addWidget(fileLabel, 0, 0, 1, -1);
	histWidget->setLayout(boxlayout);
	boxlayout->addWidget(area);
	area->setLayout(gridLayout);
	
	LogEvent pre_e;
	bool isFirst = true;
	int row = 1;
	for(int i=0; i<logMan.events.size(); i++)
	{
		LogEvent e = logMan.events[i];
		if(!e.isHasAcc) continue;
		
		if(e.acc.parent_name == compName.toStdString() && e.acc.type == type.toStdString())
		{
			if(isFirst)
			{
				QLabel* timeLabel = new QLabel;
				timeLabel->setText(QString::fromStdString(e.timestamp));
				QLabel* edit = new QLabel;
				edit->setText("First Time Open");
				gridLayout->addWidget(timeLabel, row, 0, 1, 1);
				gridLayout->addWidget(edit, row, 1, 1, 1);
				isFirst = false;
			}
			else
			{
				QLabel* timeLabel = new QLabel;
				timeLabel->setText(QString::fromStdString(e.timestamp));
				gridLayout->addWidget(timeLabel, row, 0, 1, 1);

				string s1 = pre_e.acc.value;
				replaceAll(s1, "\\n", "\n");
				replaceAll(s1, "\\t", "\t");

				string s2 = e.acc.value;
				replaceAll(s2, "\\n", "\n");
				replaceAll(s2, "\\t", "\t");

				QString str1 = QString::fromStdString(s1);
				QString str2 = QString::fromStdString(s2);

				diff_match_patch dmp;
				QList<Diff> res =  dmp.diff_main(str1,str2, true);
				dmp.diff_cleanupSemantic(res);
				if(res.size() == 1 && res[0].operation == Operation::EQUAL)
				{
					QLabel* edit = new QLabel;
					edit->setText("No Difference");
					gridLayout->addWidget(edit, row, 1, 1, 1);
				}
				else
				{
					QTextEdit* edit = new QTextEdit;
					edit->setText(dmp.diff_toString(res));
					gridLayout->addWidget(edit, row, 1, 1, 1);
				}			
				
			}

			pre_e = e;
			row++;
		}
	}

	histWidget->show();
}

TextEdit::TextEdit(QWidget *parent)
  : QMainWindow(parent)
{
  setToolButtonStyle(Qt::ToolButtonFollowStyle);
  setupFileActions();
  setupEditActions();
  setupTextActions();

  {
//    QMenu *helpMenu = new QMenu(tr("Help"), this);
//    menuBar()->addMenu(helpMenu);
//    helpMenu->addAction(tr("About"), this, SLOT(about()));
//    helpMenu->addAction(tr("About &Qt"), qApp, SLOT(aboutQt()));
  }

  textEdit = new QTextEdit(this);
  //////////////////////////////////////////////////
  connect(textEdit, SIGNAL(currentCharFormatChanged(QTextCharFormat)),
          this, SLOT(currentCharFormatChanged(QTextCharFormat)));
  connect(textEdit, SIGNAL(cursorPositionChanged()),
          this, SLOT(cursorPositionChanged()));

  ///////////
  //setCentralWidget(textEdit);
  //blank=new Blank(this);
  //setCentralWidget(blank);


  //create a transparent canvas and put it on the top of textEdit
  image =new MyCanvas(900,800,this);
  textEdit->setFixedSize(QSize(800,800));
  textEdit->setBackgroundRole(QPalette::Light);   //scrollArea对象的背景色设为Dark
  image->setFixedSize(QSize(800,800));
  image->setStyleSheet(QString::fromUtf8("border:1px solid #000000;"));

  QScrollArea* scrollArea = new QScrollArea;
  scrollArea->setFixedSize(QSize(1800,900));
  //scrollArea->setWidget(image);     //将画布添加到scrollArea中
  scrollArea->setBackgroundRole(QPalette::Light);   //scrollArea对象的背景色设为Dark
  //scrollArea->setBackgroundColor(QColor::white);

//    QStackedLayout *stackedLayout = new QStackedLayout;
//    stackedLayout->addWidget(image);
//    stackedLayout->addWidget(textEdit);
//    stackedLayout->setStackingMode(QStackedLayout::StackAll);

  QHBoxLayout* hLayout=new QHBoxLayout();
  hLayout->addWidget(textEdit);
  hLayout->addWidget(image);
//  scrollArea->setLayout(stackedLayout);
  scrollArea->setLayout(hLayout);
  //scrollArea->setGeometry(QRect(50,50,800,800));



  setCentralWidget(scrollArea);    //将scrollArea加入到主窗口的中心区new QPainter(this);
  scrollArea->setAlignment(Qt::AlignHCenter);
  //after canvas handle the mouse-drag event, emit it to the edittext for farther handling
  connect(image,SIGNAL(mouseMoveSig(QMouseEvent*)),this,SLOT(onMouseMove(QMouseEvent*)));
  //connect(image,SIGNAL(mouseMoveSig(QMouseEvent*)),textEdit,SLOT(mouseMoveEvent(QMouseEvent*)));
  //connect(image,SIGNAL(mouseMoveSig(QMouseEvent*)),textEdit,SLOT(cursorPositionChanged(QMouseEvent*)));
  //connect(this,SIGNAL(mouseMoveSig(QMouseEvent*)),image,SLOT(mouseMoveSlot(QMouseEvent*)));
  //connect(textEdit,SIGNAL(mouseMoveEvent(QMouseEvent*)),image,SLOT(mouseMoveSlot(QMouseEvent*)));

  // textEdit->setFocus();
  setCurrentFileName(QString());

  fontChanged(textEdit->font());
  colorChanged(textEdit->textColor());
  alignmentChanged(textEdit->alignment());

  connect(textEdit->document(), SIGNAL(modificationChanged(bool)),
          actionSave, SLOT(setEnabled(bool)));
  connect(textEdit->document(), SIGNAL(modificationChanged(bool)),
          this, SLOT(setWindowModified(bool)));
  connect(textEdit->document(), SIGNAL(undoAvailable(bool)),
          actionUndo, SLOT(setEnabled(bool)));
  connect(textEdit->document(), SIGNAL(redoAvailable(bool)),
          actionRedo, SLOT(setEnabled(bool)));

  setWindowModified(textEdit->document()->isModified());
  actionSave->setEnabled(textEdit->document()->isModified());
  actionUndo->setEnabled(textEdit->document()->isUndoAvailable());
  actionRedo->setEnabled(textEdit->document()->isRedoAvailable());

  connect(actionUndo, SIGNAL(triggered()), textEdit, SLOT(undo()));
  connect(actionRedo, SIGNAL(triggered()), textEdit, SLOT(redo()));

  actionCut->setEnabled(false);
  actionCopy->setEnabled(false);

  connect(actionCut, SIGNAL(triggered()), textEdit, SLOT(cut()));
  connect(actionCopy, SIGNAL(triggered()), textEdit, SLOT(copy()));
  connect(actionPaste, SIGNAL(triggered()), textEdit, SLOT(paste()));

  connect(textEdit, SIGNAL(copyAvailable(bool)), actionCut, SLOT(setEnabled(bool)));
  connect(textEdit, SIGNAL(copyAvailable(bool)), actionCopy, SLOT(setEnabled(bool)));

#ifndef QT_NO_CLIPBOARD
  connect(QApplication::clipboard(), SIGNAL(dataChanged()), this, SLOT(clipboardDataChanged()));
//.........这里部分代码省略.........