mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QPalette>
#include <QDebug>
#include <QList>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow),
m_bInitShow(false)
{
ui->setupUi(this);
m_Lframe = new QFrame;
m_Rframe = new QFrame;
m_sp = new QSplitter(this);
m_pButton= new QPushButton(this); // after Splitter
m_sp->addWidget(m_Lframe);
m_sp->addWidget(m_Rframe);
connect(m_sp,SIGNAL(splitterMoved(int,int)),this,SLOT(sl_splitterMoved(int,int)));
connect(m_pButton,SIGNAL(clicked()),this,SLOT(sl_btnClicked()));
setCentralWidget(m_sp);
setWindowFlags(Qt::FramelessWindowHint);
m_Lframe->setMouseTracking(true);
m_Rframe->setMouseTracking(true);
m_sp->setMouseTracking(true);
m_pButton->setMouseTracking(true);
setMouseTracking(true);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::setBtnPos()
{
int width=m_Lframe->width()-m_pButton->width();
int heigh=(m_Lframe->height()-m_pButton->height())/2;
m_pButton->move(width,heigh);
}
void MainWindow::setBtnIcon()
{
if(m_Rframe->width()!=0)
{
m_pButton->setIcon(QIcon(":/images/quit.png"));
}
else
{
m_pButton->setIcon(QIcon(":/images/update.png"));
}
}
void MainWindow::showEvent(QShowEvent *event)
{
if(!m_bInitShow)
{
setBtnPos();
setBtnIcon();
m_bInitShow=true;
QPalette p2=m_Rframe->palette(); // initial the frame back round
p2.setColor(QPalette::Window,Qt::gray);
p2.setColor(QPalette::WindowText,Qt::red);
m_Rframe->setPalette(p2);
m_Rframe->setAutoFillBackground(true);
m_Rframe->setMaximumWidth(300);
base= m_sp->sizes();
m_pButton->setFixedSize(32,32);
m_pButton->setIconSize(QSize(16,16));
m_pButton->setVisible(false);
m_pButton->setStyleSheet("border:none;");
}
QMainWindow::showEvent(event);
}
void MainWindow::resizeEvent(QResizeEvent *event)
{
setBtnPos();
QMainWindow::resizeEvent(event);
}
void MainWindow::sl_splitterMoved(int pos,int index)
{
setBtnPos();
if(m_Rframe->width()==0)
{
setBtnIcon();
}
}
void MainWindow::sl_btnClicked()
{
// static QList<qint32> base= m_sp->sizes(); //keep the initial pos
QList<qint32> newSize;
if(m_Rframe->width()!=0)
{
newSize<<base.at(0)+base.at(1)<<0;
}
else
{
newSize<<base.at(0)<<base.at(1);
}
m_sp->setSizes(newSize); //move the SPLITTER
setBtnPos();
setBtnIcon();
}
void MainWindow::mouseMoveEvent(QMouseEvent *event)
{
int isWidth = m_pButton->pos().x()+m_pButton->width();
int isHeight = m_pButton->pos().y()+m_pButton->height();
int x=event->pos().x();
int y=event->pos().y();
if(x>m_pButton->pos().x()&&x<isWidth&&y>m_pButton->y()&&y<isHeight)
{
m_pButton->setVisible(true);
}
else
{
m_pButton->setVisible(false);
}
}
mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QFrame>
#include <QSplitter>
#include <QPushButton>
#include <QMouseEvent>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
void setBtnPos();
void setBtnIcon();
private:
Ui::MainWindow *ui;
QFrame *m_Lframe,*m_Rframe;
QSplitter *m_sp;
QPushButton *m_pButton;
bool m_bInitShow;
QList<qint32> base;
protected:
void showEvent(QShowEvent *event);
void resizeEvent(QResizeEvent *event);
void mouseMoveEvent(QMouseEvent *event);
private slots:
void sl_splitterMoved(int pos, int index);
void sl_btnClicked();
};
#endif // MAINWINDOW_H
