聊天软件中的窗口上滑和下滑提示上下线

聊天软件中右下角窗口上滑提示有好友上线，窗口下滑提示有好友下线。

在 Qt 下实现此功能，用到的类有 QPoint  QTimer

mainwindow.h

 1 #ifndef MAINWINDOW_H
 2 #define MAINWINDOW_H
 3
 4 #include <QMainWindow>
 5 #include <QPoint>
 6 #include <QTimer>
 7
 8 namespace Ui {
 9 class MainWindow;
10 }
11
12 class MainWindow : public QMainWindow
13 {
14     Q_OBJECT
15
16 public:
17     explicit MainWindow(QWidget *parent = 0);
18     void point_to_point();
19     ~MainWindow();
20
21 private:
22     Ui::MainWindow *ui;
23     QTimer* M_Timer;
24     QTimer* M_Timer1;
25     QTimer* M_Timer2;
26     int Counter;
27     QPoint curPos;
28
29 private slots:
30     void timerDone();
31     void timerDone1();
32     void timerDone2();
33 };
34
35 #endif // MAINWINDOW_H

mainwindow.cpp

 1 #include "mainwindow.h"
 2 #include "ui_mainwindow.h"
 3
 4 MainWindow::MainWindow(QWidget *parent) :
 5     QMainWindow(parent),
 6     ui(new Ui::MainWindow)
 7 {
 8     ui->setupUi(this);
 9     M_Timer = new QTimer();
10     M_Timer1 = new QTimer();
11     M_Timer2 = new QTimer();
12     this->move(950,768);
13     curPos=this->pos();
14     connect(M_Timer, SIGNAL(timeout()),this, SLOT(timerDone()));
15     connect(M_Timer1, SIGNAL(timeout()),this, SLOT(timerDone1()));
16     connect(M_Timer2, SIGNAL(timeout()),this, SLOT(timerDone2()));
17     point_to_point();
18 }
19
20 MainWindow::~MainWindow()
21 {
22     delete ui;
23 }
24
25 void MainWindow :: point_to_point()
26 {
27     M_Timer->start(100);
28     curPos=this->pos();
29     QPoint TmpPos(curPos.x(),curPos.y()-10);
30     this->move(TmpPos);
31 }
32
33 void MainWindow :: timerDone()
34 {
35     curPos=this->pos();
36     QPoint TmpPos(curPos.x(),curPos.y()-10);
37     this->move(TmpPos);
38     Counter = curPos.y();
39     qDebug() << curPos.y();
40     if(Counter < 500)
41     {
42        M_Timer->stop();
43        M_Timer2->start(1000);
44     }
45 }
46
47 void MainWindow :: timerDone1()
48 {
49     curPos=this->pos();
50     QPoint TmpPos(curPos.x(),curPos.y()+10);
51     this->move(TmpPos);
52     Counter = curPos.y();
53     if(Counter > 660)
54     {
55         M_Timer1->stop();
56     }
57 }
58
59 void MainWindow :: timerDone2()
60 {
61     curPos=this->pos();
62     QPoint TmpPos(curPos.x(),curPos.y());
63     this->move(TmpPos);
64     M_Timer2->stop();
65     M_Timer1->start(100);
66 }

2014-07-28   21:03:08

聊天软件中的窗口上滑和下滑提示上下线