急啊！！！QT显示button位置总是在左上角。怎么使用布局管理写到右边竖直排列呢？具体代码如下：main.cpp#include<QApplication>#include"mainwindow.h"intmain(intargc,char*argv[]){QApplicationapp(a

Question

急啊！！！QT显示button 位置总是在左上角。怎么使用布局管理写到右边竖直排列呢？具体代码如下： main.cpp #include <QApplication> #include "mainwindow.h" int main(int argc, char * argv[]) { QApplication app(argc, argv); MainWindow * mainWindow = new MainWindow; mainWindow->resize(645, 570); mainWindow->show(); return app.exec(); } mainWindow.h #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QtGui> #include "imagewidget.h" #include "thread.h" class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(); private: QScrollArea * mainDisplay; ImageWidget * imageWidget; QMenu * fileMenu; QToolBar * toolBar; QPushButton * capturebutton; QPushButton * refreshbutton; }; #endif mainWindow.cpp #include <QtGui> #include <QTime> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <fcntl.h> #include <sys/types.h> #include <memory.h> #include <fcntl.h> #include <netdb.h> #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <string.h> #include <memory.h> #include <unistd.h> #include <arpa/inet.h> #include "mainwindow.h" #include "connectdialog.h" #include "thread.h" MainWindow::MainWindow() { vlayout =new Vlayout; //布局管理忘了具体怎么写了。。。 mainlayout=new Hlayout; imageWidget = new ImageWidget; mainDisplay = new QScrollArea; mainDisplay->setBackgroundRole(QPalette::Dark); imageWidget->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); mainDisplay->setWidget(imageWidget); mainDisplay->widget()->setMinimumSize(640, 480); setCentralWidget(mainDisplay); createAction(); createMenu(); createToolBar(); createStatusBar(); createButton(); imageWidget->setPixmap("./images/start.png"); setWindowTitle(tr("camera client")); setWindowIcon(QIcon("./images/camera.png")); setFocusPolicy(Qt::StrongFocus); connect(paintThread, SIGNAL(dataReady()), this, SLOT(paint())); } void MainWindow::createButton() { capturebutton = new QPushButton(tr("Capture"),this); refreshbutton = new QPushButton(tr("Refresh"),this); vlayout->addwidget(capturebutton); vlayout->addwidget(refreshbutton ); mainlayout->addlayout(vlayout); }

Answer 1

阁下的代码不完整吧