Qt浅谈之三十五仿QQ设置面板功能

一、简介

        模仿QQ系统设置的面板：上面的导航切换选项卡使用QTabWidget，左侧导航使用QListWidget，右侧的显示区域使用QScrollArea控件；主要使用垂直滚动条的valueChanged事件和QListWidget的itemClicked事件；通过调用QWidget的visibleRegion().isEmpty() 判断QScrollArea中滑动过的区域，通过垂直滚动条的setSliderPosition方法设置QScrollArea的新的区域。

二、详解

1、模仿QQ系统设置的面板

（1）代码

• settingpanel.h：

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1. #ifndef SETTINGPANEL_H  
2. #define SETTINGPANEL_H  
3.   
4. #include <QtGui>  
5. #include "epushbutton.h"  
6.   
7. class SettingPanel : public QWidget  
8. {  
9.     Q_OBJECT  
10.   
11. public:  
12.     SettingPanel(QWidget *parent = 0);  
13.     ~SettingPanel();  
14.   
15. protected:  
16.      void paintEvent(QPaintEvent *event);  
17.      void mousePressEvent(QMouseEvent *event);  
18.      void mouseReleaseEvent(QMouseEvent *event);  
19.      void mouseMoveEvent(QMouseEvent *event);  
20.      void resizeEvent(QResizeEvent *event);  
21.   
22. private:  
23.      void initTabOneWidget();  
24.      void initTabTwoWidget();  
25.      void initTabThreeWidget();  
26.   
27. private slots:  
28.      void slotCurrentChanged(int index);  
29.      void slotItemClicked(QListWidgetItem *item);  
30.      void slotValueChanged(int value);  
31.   
32. private:  
33.     QPoint movePoint;  
34.     bool mousePress;  
35.     EPushButton *minButton;  
36.     EPushButton *closeButton;  
37.     QRect rectMove;  
38.     QTabWidget *tabWidget;  
39.     QListWidget *contentsWidget;  
40.     QWidget *widgetScrollArea;  
41.     QScrollArea *scrollArea;  
42.     QWidget *loginWidget;  
43.     QWidget *panelWidget;  
44.     QWidget *statusWidget;  
45.     QWidget *sessionWidget;  
46.   
47.     QWidget *passwordWidget;  
48.     QWidget *qqlockWidget;  
49.   
50.     QWidget *spaceWidget;  
51.     bool signFlag;  
52. };  
53.   
54. #endif // SETTINGPANEL_H  

• settingpanel.cpp：

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1. #include "settingpanel.h"  
2.   
3. SettingPanel::SettingPanel(QWidget *parent)  
4.     : QWidget(parent, Qt::FramelessWindowHint)  
5.     , mousePress(false)  
6.     , signFlag(false)  
7.     , loginWidget(NULL)  
8.     , panelWidget(NULL)  
9.     , statusWidget(NULL)  
10.     , sessionWidget(NULL)  
11.     , passwordWidget(NULL)  
12.     , qqlockWidget(NULL)  
13.     , spaceWidget(NULL)  
14. {  
15.     resize(700, 500);  
16.     setStyleSheet("QCheckBox{font-family:arial;font-size:13px;border-radius:2px;color:#000000;}"  
17.                   "QCheckBox::indicator:checked{color:#FF0000}"  
18.                   "QTabWidget::pane{border:none;}"  
19.                   "QTabWidget::tab-bar{alignment:left;}"  
20.                   "QTabBar::tab{background:transparent;color:#000000;min-width:100px;min-height:35px;}"  
21.                   "QTabBar::tab:hover{background:rgb(255, 255, 255, 255);}"  
22.                   "QTabBar::tab:selected{border-color: white;color:green;padding-left:5px}"  
23.                   "QListWidget{background:rgba(240,240,240,255);color:#000000;border:0px solid gray;padding:0px;}"  
24.                   "QListWidget::item{width:94px;height:38px;border:0px solid gray;padding-left:24px;}"  
25.                   "QListWidget::item:selected:active{background:#FFFFFF;color:#19649F;border-width:-1;}"  
26.                   "QListWidget::item:selected{background:#FFFFFF;color:#19649F;}"  
27.                   "QLabel,QRadioButton{background:transparent;color:#000000;font-family:arial;font-size:13px;}"  
28.   
29.                   "QComboBox{border:1px solid #d7d7d7; border-radius: 3px; padding: 1px 3px 1px 3px;}"  
30.                   "QComboBox:editable{background:transparent;}"  
31.                   "QComboBox:!editable{background: #fbfbfb;color:#666666}"  
32.                   "QComboBox::down-arrow:on {top: 1px;left: 1px;}"  
33.                   "QComboBox QAbstractItemView::item{max-width:30px;min-height:20px;}"  
34.                   );  
35.     rectMove = QRect(0, 0, width(), 35);  
36.   
37.     tabWidget = new QTabWidget(this);  
38.     tabWidget->setFocusPolicy(Qt::NoFocus);  
39.     QWidget *tab1 = new QWidget(this);  
40.     tab1->setStyleSheet("background:#FFFFFF");  
41.     QWidget *tab2 = new QWidget(this);  
42.     tab2->setStyleSheet("background:#FFFFFF");  
43.     QWidget *tab3 = new QWidget(this);  
44.     tab3->setStyleSheet("background:#FFFFFF");  
45.     tabWidget->addTab(tab1, QIcon(":/setting.png"),tr("base setting"));  
46.     tabWidget->addTab(tab2, QIcon(":/home.png"), tr("secure setting"));  
47.     tabWidget->addTab(tab3, QIcon(":/status.png"), tr("power setting"));  
48.     tabWidget->setCurrentIndex(0);  
49.   
50.     contentsWidget = new QListWidget(this);  
51.     contentsWidget->setFocusPolicy(Qt::NoFocus);  
52.     connect(contentsWidget, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(slotItemClicked(QListWidgetItem*)));  
53.   
54.     scrollArea = new QScrollArea(this);  
55.     scrollArea->setStyleSheet("QScrollArea{background:transparent;}"  
56.                               "QScrollBar::vertical{background:#35A739;border:-5px solid grey;margin:-2px 0px 0px 0px;width:8px;}"  
57.                               "QScrollBar::horizontal{background:#35A739;border:0px solid #126691;height:10px;}"  
58.                               "QScrollBar::add-page:vertical, QScrollBar::sub-page:vertical {background:#D3D3D3;}"  
59.                               );  
60.   
61.     scrollArea->setFrameShape(QFrame::NoFrame);  
62.     scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);  
63.     scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);  
64.     scrollArea->setFocusPolicy(Qt::NoFocus);  
65.     connect(scrollArea->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(slotValueChanged(int)));  
66.   
67.     connect(tabWidget, SIGNAL(currentChanged(int)), this, SLOT(slotCurrentChanged(int)));  
68.     slotCurrentChanged(0);  
69.   
70.     minButton = new EPushButton(this);  
71.     minButton->setPixName(":/min");  
72.     minButton->setToolTip(tr("minimize"));  
73.     connect(minButton, SIGNAL(clicked()), this, SLOT(showMinimized()));  
74.   
75.     closeButton = new EPushButton(this);  
76.     closeButton->setPixName(":/close");  
77.     closeButton->setToolTip(tr("close"));  
78.     connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));  
79. }  
80.   
81. SettingPanel::~SettingPanel()  
82. {  
83.   
84. }  
85.   
86. void SettingPanel::resizeEvent(QResizeEvent *event)  
87. {  
88.     tabWidget->setGeometry(0, 35, this->width(), this->height() - 35);  
89.     contentsWidget->setGeometry(0, 71, 130, this->height() - 71);  
90.     scrollArea->setGeometry(131, 72, this->width() - 132, this->height() - 73);  
91.     minButton->move(width() - 27 - closeButton->width(), 6);  
92.     closeButton->move(width() - 27, 6);  
93.     move((QApplication::desktop()->width() - width())/2,  (QApplication::desktop()->height() - height())/2);  
94.     QWidget::resizeEvent(event);  
95. }  
96.   
97. void SettingPanel::initTabOneWidget()  
98. {  
99.     /************loginWidget**************/  
100.     loginWidget = new QWidget(widgetScrollArea);  
101.     loginWidget->show();  
102.     QLabel *label = new QLabel(loginWidget);  
103.     label->setText(tr("login:"));  
104.     label->setGeometry(30, 10, 50, 30);  
105.     label->show();  
106.     QCheckBox *first = new QCheckBox(loginWidget);  
107.     first->setFocusPolicy(Qt::NoFocus);  
108.     first->setText(tr("start QQ when starting"));  
109.     first->setGeometry(100, 10, 300, 30);  
110.     first->show();  
111.     QCheckBox *second = new QCheckBox(loginWidget);  
112.     second->setFocusPolicy(Qt::NoFocus);  
113.     second->setText(tr("login when starting QQ"));  
114.     second->setGeometry(100, 40, 300, 30);  
115.     second->show();  
116.     QCheckBox *third = new QCheckBox(loginWidget);  
117.     third->setFocusPolicy(Qt::NoFocus);  
118.     third->setChecked(true);  
119.     third->setText(tr("open the tips always"));  
120.     third->setGeometry(100, 70, 300, 30);  
121.     third->show();  
122.     QCheckBox *forth = new QCheckBox(loginWidget);  
123.     forth->setFocusPolicy(Qt::NoFocus);  
124.     forth->setText(tr("open the previous session when logining"));  
125.     forth->setGeometry(100, 100, 300, 30);  
126.     forth->show();  
127.     QCheckBox *five = new QCheckBox(loginWidget);  
128.     five->setFocusPolicy(Qt::NoFocus);  
129.     five->setText(tr("open the tips always"));  
130.     five->setGeometry(100, 130, 300, 30);  
131.     five->show();  
132.     QCheckBox *sixth = new QCheckBox(loginWidget);  
133.     sixth->setFocusPolicy(Qt::NoFocus);  
134.     sixth->setChecked(true);  
135.     sixth->setText(tr("start phone qq when leaving"));  
136.     sixth->setGeometry(100, 160, 300, 30);  
137.     sixth->show();  
138.     QCheckBox *seventh = new QCheckBox(loginWidget);  
139.     seventh->setFocusPolicy(Qt::NoFocus);  
140.     seventh->setChecked(true);  
141.     seventh->setText(tr("diskplay the waiting tips when logining"));  
142.     seventh->setGeometry(100, 190, 300, 30);  
143.     seventh->show();  
144.     loginWidget->setGeometry(0, 0, 555, 220);  
145.     /************panelWidget**************/  
146.     panelWidget = new QWidget(widgetScrollArea);  
147.     panelWidget->show();  
148.     QLabel *plabel = new QLabel(panelWidget);  
149.     plabel->setText(tr("mainpanel:"));  
150.     plabel->setGeometry(30, 10, 50, 30);  
151.     plabel->show();  
152.     QCheckBox *pfirst = new QCheckBox(panelWidget);  
153.     pfirst->setChecked(true);  
154.     pfirst->setFocusPolicy(Qt::NoFocus);  
155.     pfirst->setText(tr("stays on top always"));  
156.     pfirst->setGeometry(100, 10, 300, 30);  
157.     pfirst->show();  
158.     QCheckBox *psecond = new QCheckBox(panelWidget);  
159.     psecond->setChecked(true);  
160.     psecond->setFocusPolicy(Qt::NoFocus);  
161.     psecond->setText(tr("hide when  skiming the edge of desktop"));  
162.     psecond->setGeometry(100, 40, 300, 30);  
163.     psecond->show();  
164.     QCheckBox *pthird = new QCheckBox(panelWidget);  
165.     pthird->setFocusPolicy(Qt::NoFocus);  
166.     pthird->setChecked(true);  
167.     pthird->setText(tr("display the icon of qq at the taskbar"));  
168.     pthird->setGeometry(100, 70, 300, 30);  
169.     pthird->show();  
170.     QLabel *pforth = new QLabel(panelWidget);  
171.     pforth->setText(tr("when closing the mainpanel:"));  
172.     pforth->setGeometry(100, 100, 300, 30);  
173.     pforth->show();  
174.     QRadioButton *hideRadio = new QRadioButton(panelWidget);  
175.     hideRadio->setFocusPolicy(Qt::NoFocus);  
176.     hideRadio->setText(tr("hide at the taskbar and do not exit"));  
177.     hideRadio->setGeometry(120, 130, 300, 30);  
178.     hideRadio->show();  
179.     QRadioButton *exitRadio = new QRadioButton(panelWidget);  
180.     exitRadio->setFocusPolicy(Qt::NoFocus);  
181.     exitRadio->setChecked(true);  
182.     exitRadio->setText(tr("exit the program"));  
183.     exitRadio->setGeometry(120, 160, 300, 30);  
184.     exitRadio->show();  
185.     panelWidget->setGeometry(0, 220, 555, 190);  
186.     /************statusWidget**************/  
187.     statusWidget = new QWidget(widgetScrollArea);  
188.     statusWidget->show();  
189.     QLabel *slabel = new QLabel(statusWidget);  
190.     slabel->setText(tr("status:"));  
191.     slabel->setGeometry(30, 10, 50, 30);  
192.     slabel->show();  
193.     QLabel *slabelsecond = new QLabel(statusWidget);  
194.     slabelsecond->setText(tr("the status of logining:"));  
195.     slabelsecond->setGeometry(100, 10, 150, 30);  
196.     slabelsecond->show();  
197.     QComboBox *combox = new QComboBox(statusWidget);  
198.     combox->setFocusPolicy(Qt::NoFocus);  
199.     combox->setStyle(new QPlastiqueStyle);  
200.     combox->addItems(QStringList() << tr("hide") << tr("oneline") << tr("busy") << tr("leave"));  
201.     combox->setGeometry(200, 12, 80, 24);  
202.     combox->show();  
203.     QCheckBox *ssecond = new QCheckBox(statusWidget);  
204.     ssecond->setChecked(true);  
205.     ssecond->setFocusPolicy(Qt::NoFocus);  
206.     ssecond->setText(tr("switch to busy when running the program of fullscreen"));  
207.     ssecond->setGeometry(100, 40, 300, 30);  
208.     ssecond->show();  
209.     QCheckBox *sthird = new QCheckBox(statusWidget);  
210.     sthird->setFocusPolicy(Qt::NoFocus);  
211.     sthird->setChecked(true);  
212.     sthird->setText(tr("auto replay when leaving or busy"));  
213.     sthird->setGeometry(100, 70, 300, 30);  
214.     sthird->show();  
215.     QCheckBox *sforth = new QCheckBox(statusWidget);  
216.     sforth->setFocusPolicy(Qt::NoFocus);  
217.     sforth->setText(tr("lock the qq when do not moving"));  
218.     sforth->setGeometry(100, 100, 300, 30);  
219.     sforth->show();  
220.     statusWidget->setGeometry(0, 410, 555, 130);  
221.     /************sessionWidget**************/  
222.     sessionWidget = new QWidget(widgetScrollArea);  
223.     sessionWidget->show();  
224.     QLabel *elabel = new QLabel(sessionWidget);  
225.     elabel->setText(tr("session:"));  
226.     elabel->setGeometry(30, 10, 50, 30);  
227.     elabel->show();  
228.     QCheckBox *efirst = new QCheckBox(sessionWidget);  
229.     efirst->setChecked(true);  
230.     efirst->setFocusPolicy(Qt::NoFocus);  
231.     efirst->setText(tr("use colourful bubble to chat"));  
232.     efirst->setGeometry(100, 10, 300, 30);  
233.     efirst->show();  
234.     QCheckBox *esecond = new QCheckBox(sessionWidget);  
235.     esecond->setChecked(true);  
236.     esecond->setFocusPolicy(Qt::NoFocus);  
237.     esecond->setText(tr("do not dispaly ad"));  
238.     esecond->setGeometry(100, 40, 300, 30);  
239.     esecond->show();  
240.     QCheckBox *ethird = new QCheckBox(sessionWidget);  
241.     ethird->setFocusPolicy(Qt::NoFocus);  
242.     ethird->setText(tr("auto pop the panel when having massage"));  
243.     ethird->setGeometry(100, 70, 300, 30);  
244.     ethird->show();  
245.     QCheckBox *eforth = new QCheckBox(sessionWidget);  
246.     eforth->setChecked(true);  
247.     eforth->setFocusPolicy(Qt::NoFocus);  
248.     eforth->setText(tr("use autorun magic and supper expression"));  
249.     eforth->setGeometry(100, 100, 300, 30);  
250.     eforth->show();  
251.     QCheckBox *efive = new QCheckBox(sessionWidget);  
252.     efive->setChecked(true);  
253.     efive->setFocusPolicy(Qt::NoFocus);  
254.     efive->setText(tr("use moving feeling to char"));  
255.     efive->setGeometry(100, 130, 300, 30);  
256.     efive->show();  
257.     QCheckBox *esixth = new QCheckBox(sessionWidget);  
258.     esixth->setFocusPolicy(Qt::NoFocus);  
259.     esixth->setChecked(true);  
260.     esixth->setText(tr("display the window of char at the sidebar"));  
261.     esixth->setGeometry(100, 160, 300, 30);  
262.     esixth->show();  
263.     QCheckBox *eseventh = new QCheckBox(sessionWidget);  
264.     eseventh->setFocusPolicy(Qt::NoFocus);  
265.     eseventh->setChecked(true);  
266.     eseventh->setText(tr("allow the moving window"));  
267.     eseventh->setGeometry(100, 190, 300, 30);  
268.     eseventh->show();  
269.     QCheckBox *eeighth = new QCheckBox(sessionWidget);  
270.     eeighth->setFocusPolicy(Qt::NoFocus);  
271.     eeighth->setChecked(true);  
272.     eeighth->setText(tr("dispaly search tips"));  
273.     eeighth->setGeometry(100, 210, 300, 30);  
274.     eeighth->show();  
275.     QCheckBox *enineth = new QCheckBox(sessionWidget);  
276.     enineth->setFocusPolicy(Qt::NoFocus);  
277.     enineth->setChecked(true);  
278.     enineth->setText(tr("dispaly the history information"));  
279.     enineth->setGeometry(100, 240, 300, 30);  
280.     enineth->show();  
281.     QCheckBox *etenth = new QCheckBox(sessionWidget);  
282.     etenth->setFocusPolicy(Qt::NoFocus);  
283.     etenth->setChecked(true);  
284.     etenth->setText(tr("combine the session window"));  
285.     etenth->setGeometry(100, 270, 300, 30);  
286.     etenth->show();  
287.     sessionWidget->setGeometry(0, 540, 555, 300 + 127);  
288.   
289.     widgetScrollArea->resize(555, 840+127);  
290. }  
291.   
292. void SettingPanel::initTabTwoWidget()  
293. {  
294.     /************passwordWidget**************/  
295.     passwordWidget = new QWidget(widgetScrollArea);  
296.     passwordWidget->show();  
297.     QLabel *label = new QLabel(passwordWidget);  
298.     label->setText(tr("password:"));  
299.     label->setGeometry(30, 10, 50, 30);  
300.     label->show();  
301.     QLabel *first = new QLabel(passwordWidget);  
302.     first->setText(tr("do not remember the password:"));  
303.     first->setGeometry(100, 10, 300, 30);  
304.     first->show();  
305.     QPushButton *second = new QPushButton(passwordWidget);  
306.     second->setStyleSheet("QPushButton{border:1px solid lightgray;background:rgb(230,230,230);border-radius:3px;}"  
307.                           "QPushButton:hover{border-color:green;background:#bee7fd;}");  
308.     second->setFocusPolicy(Qt::NoFocus);  
309.     second->setText(tr("cancel to remember password"));  
310.     second->setGeometry(100, 40, 90, 25);  
311.     second->show();  
312.     QLabel *third = new QLabel(passwordWidget);  
313.     third->setText(tr("make sure safe,please alter password regularly"));  
314.     third->setGeometry(100, 70, 300, 30);  
315.     third->show();  
316.     QPushButton *forth = new QPushButton(passwordWidget);  
317.     forth->setStyleSheet("QPushButton{border:1px solid lightgray;background:rgb(230,230,230);border-radius:3px;}"  
318.                           "QPushButton:hover{border-color:green;color:#bee7fd;}");  
319.     forth->setFocusPolicy(Qt::NoFocus);  
320.     forth->setText(tr("alter password"));  
321.     forth->setGeometry(100, 100, 60, 25);  
322.     forth->show();  
323.     QPushButton *forths = new QPushButton(passwordWidget);  
324.     forths->setStyleSheet("QPushButton{border:1px solid lightgray;background:rgb(230,230,230);border-radius:3px;}"  
325.                           "QPushButton:hover{border-color:green;color:#bee7fd;}");  
326.     forths->setFocusPolicy(Qt::NoFocus);  
327.     forths->setText(tr("apply for protecting password"));  
328.     forths->setGeometry(170, 100, 90, 25);  
329.     forths->show();  
330.     QLabel *five = new QLabel(passwordWidget);  
331.     five->setText(tr("some servers will use special password"));  
332.     five->setGeometry(100, 130, 300, 30);  
333.     five->show();  
334.     QPushButton *sixth = new QPushButton(passwordWidget);  
335.     sixth->setStyleSheet("QPushButton{border:1px solid lightgray;background:rgb(240,240,240);border-radius:3px;}"  
336.                           "QPushButton:hover{border-color:green;color:#bee7fd;}");  
337.     sixth->setFocusPolicy(Qt::NoFocus);  
338.     sixth->setText(tr("manager special password"));  
339.     sixth->setGeometry(100, 160, 90, 25);  
340.     sixth->show();  
341.     passwordWidget->setGeometry(0, 0, 555, 190);  
342.     /************qqlockWidget**************/  
343.     qqlockWidget = new QWidget(widgetScrollArea);  
344.     qqlockWidget->show();  
345.     QLabel *qlabel = new QLabel(qqlockWidget);  
346.     qlabel->setText(tr("qqlock:"));  
347.     qlabel->setGeometry(30, 10, 50, 30);  
348.     qlabel->show();  
349.     QRadioButton *firstRadio = new QRadioButton(qqlockWidget);  
350.     firstRadio->setFocusPolicy(Qt::NoFocus);  
351.     firstRadio->setChecked(true);  
352.     firstRadio->setText(tr("qq password is used to unlock"));  
353.     firstRadio->setGeometry(100, 10, 300, 30);  
354.     firstRadio->show();  
355.     QRadioButton *secondRadio = new QRadioButton(qqlockWidget);  
356.     secondRadio->setFocusPolicy(Qt::NoFocus);  
357.     secondRadio->setText(tr("special password is used to unlock"));  
358.     secondRadio->setGeometry(100, 40, 300, 30);  
359.     secondRadio->show();  
360.     qqlockWidget->setGeometry(0, 190, 555, 70);  
361.     widgetScrollArea->resize(555, 190+70+360);  
362. }  
363.   
364. void SettingPanel::initTabThreeWidget()  
365. {  
366.     /************loginWidget**************/  
367.     spaceWidget = new QWidget(widgetScrollArea);  
368.     spaceWidget->show();  
369.     QLabel *label = new QLabel(spaceWidget);  
370.     label->setText(tr("spacepermission:"));  
371.     label->setGeometry(30, 10, 60, 30);  
372.     label->show();  
373.     QCheckBox *first = new QCheckBox(spaceWidget);  
374.     first->setFocusPolicy(Qt::NoFocus);  
375.     first->setChecked(true);  
376.     first->setText(tr("newly log and photos display on qq"));  
377.     first->setGeometry(100, 10, 300, 30);  
378.     first->show();  
379.     QCheckBox *second = new QCheckBox(spaceWidget);  
380.     second->setFocusPolicy(Qt::NoFocus);  
381.     second->setText(tr("update sign when updating chat"));  
382.     second->setGeometry(100, 40, 300, 30);  
383.     second->show();  
384.     QCheckBox *third = new QCheckBox(spaceWidget);  
385.     third->setFocusPolicy(Qt::NoFocus);  
386.     third->setChecked(true);  
387.     third->setText(tr("notice you when you log is republished"));  
388.     third->setGeometry(100, 70, 300, 30);  
389.     third->show();  
390.     QCheckBox *forth = new QCheckBox(spaceWidget);  
391.     forth->setFocusPolicy(Qt::NoFocus);  
392.     forth->setChecked(true);  
393.     forth->setText(tr("notice you when you have new tips"));  
394.     forth->setGeometry(100, 100, 300, 30);  
395.     forth->show();  
396.     QCheckBox *five = new QCheckBox(spaceWidget);  
397.     five->setFocusPolicy(Qt::NoFocus);  
398.     five->setChecked(true);  
399.     five->setText(tr("display your newly application"));  
400.     five->setGeometry(100, 130, 300, 30);  
401.     five->show();  
402.     spaceWidget->setGeometry(0, 0, 555, 160);  
403.     widgetScrollArea->resize(555, 160);  
404. }  
405.   
406. void SettingPanel::slotCurrentChanged(int index)  
407. {  
408.     contentsWidget->clear();  
409.     scrollArea->takeWidget();  
410.     loginWidget = NULL;  
411.     panelWidget = NULL;  
412.     statusWidget = NULL;  
413.     sessionWidget = NULL;  
414.     passwordWidget = NULL;  
415.     qqlockWidget = NULL;  
416.     spaceWidget = NULL;  
417.   
418.     widgetScrollArea = new QWidget(this);  
419.     widgetScrollArea->setStyleSheet("background:transparent;");  
420.     scrollArea->setWidget(widgetScrollArea);  
421.     if (index == 0) {  
422.         contentsWidget->addItem(tr("login"));  
423.         contentsWidget->addItem(tr("mainpanel"));  
424.         contentsWidget->addItem(tr("status"));  
425.         contentsWidget->addItem(tr("session"));  
426.         initTabOneWidget();  
427.     }  
428.     else if (index == 1){  
429.         contentsWidget->addItem(tr("password"));  
430.         contentsWidget->addItem(tr("qqlock"));  
431.         initTabTwoWidget();  
432.     }  
433.     else if (index == 2) {  
434.         contentsWidget->addItem(tr("spacepermission"));  
435.         initTabThreeWidget();  
436.     }  
437.     if (contentsWidget->count() > 0) {  
438.         contentsWidget->setCurrentRow(0);  
439.     }  
440. }  
441.   
442. void SettingPanel::slotItemClicked(QListWidgetItem *item)  
443. {  
444.     signFlag = true ;  
445.     QString itemText = item->text();  
446.     QPoint widgetPos;  
447.     if (tabWidget->currentIndex() == 0) {  
448.         if (itemText == tr("mainpanel")) {  
449.             widgetPos = panelWidget->pos();  
450.             scrollArea->verticalScrollBar()->setSliderPosition(widgetPos.y());  
451.         }  
452.         else if (itemText == tr("status")) {  
453.             widgetPos = statusWidget->pos();  
454.             scrollArea->verticalScrollBar()->setValue(widgetPos.y());  
455.         }  
456.         else if (itemText == tr("session")) {  
457.             widgetPos = sessionWidget->pos();  
458.             scrollArea->verticalScrollBar()->setValue(widgetPos.y());  
459.         }  
460.         else if (itemText == tr("login")) {  
461.             widgetPos = loginWidget->pos();  
462.             scrollArea->verticalScrollBar()->setValue(widgetPos.y());  
463.         }  
464.     }  
465.     else if (tabWidget->currentIndex() == 1) {  
466.         if (itemText == tr("password")) {  
467.             widgetPos = passwordWidget->pos();  
468.             scrollArea->verticalScrollBar()->setSliderPosition(widgetPos.y());  
469.         }  
470.         else if (itemText == tr("qqlock")) {  
471.             widgetPos = qqlockWidget->pos();  
472.             scrollArea->verticalScrollBar()->setValue(widgetPos.y());  
473.         }  
474.     }  
475. }  
476.   
477. void SettingPanel::slotValueChanged(int value)  
478. {  
479.     if (tabWidget->currentIndex() == 0) {  
480.         QListWidgetItem *loginItem = contentsWidget->item(0);  
481.         QListWidgetItem *panelItem = contentsWidget->item(1);  
482.         QListWidgetItem *statusItem = contentsWidget->item(2);  
483.         QListWidgetItem *sessionItem = contentsWidget->item(3);  
484.         if (!signFlag) {  
485.             if (loginWidget && panelWidget && statusWidget && sessionWidget) {  
486.                 if (!loginWidget->visibleRegion().isEmpty()) {  
487.                     loginItem->setSelected(true);  
488.                     return;  
489.                 }  
490.                 else {  
491.                     loginItem->setSelected(false);  
492.                 }  
493.                 if (!panelWidget->visibleRegion().isEmpty()) {  
494.                     panelItem->setSelected(true);  
495.                     return;  
496.                 }  
497.                 else {  
498.                     panelItem->setSelected(false);  
499.                 }  
500.                 if (!statusWidget->visibleRegion().isEmpty()) {  
501.                     statusItem->setSelected(true);  
502.                     return;  
503.                 }  
504.                 else {  
505.                     statusItem->setSelected(false);  
506.                 }  
507.                 if (!sessionWidget->visibleRegion().isEmpty()) {  
508.                     sessionItem->setSelected(true);  
509.                     return;  
510.                 }  
511.                 else {  
512.                     sessionItem->setSelected(false);  
513.                 }  
514.             }  
515.         }  
516.     }  
517.     else if (tabWidget->currentIndex() == 1) {  
518.         QListWidgetItem *passwordItem = contentsWidget->item(0);  
519.         QListWidgetItem *qqlockItem = contentsWidget->item(1);  
520.         if (!signFlag) {  
521.             if (passwordWidget && qqlockWidget) {  
522.                 if (!passwordWidget->visibleRegion().isEmpty()) {  
523.                     passwordItem->setSelected(true);  
524.                     return;  
525.                 }  
526.                 else {  
527.                     passwordItem->setSelected(false);  
528.                 }  
529.                 if (!qqlockWidget->visibleRegion().isEmpty()) {  
530.                     qqlockItem->setSelected(true);  
531.                     return;  
532.                 }  
533.                 else {  
534.                     qqlockItem->setSelected(false);  
535.                 }  
536.             }  
537.         }  
538.     }  
539.     signFlag = false;  
540. }  
541.   
542. void SettingPanel::paintEvent(QPaintEvent *event)  
543. {  
544.     QPainter painter(this);  
545.     painter.setPen(Qt::NoPen);  
546.     painter.setBrush(QColor("#F0F0F0"));  
547.     painter.drawRect(this->rect());  
548.     painter.setBrush(QColor("#069dd5"));  
549.     painter.drawRect(rectMove);  
550.     painter.setPen(QColor("#D7D7D7"));  
551.     painter.drawLine(0, 70, this->width(), 70);  
552.     QWidget::paintEvent(event);  
553. }  
554.   
555. void SettingPanel::mousePressEvent(QMouseEvent *event)  
556. {  
557.     if(event->button() == Qt::LeftButton && rectMove.contains(event->pos())) {  
558.         mousePress = true;  
559.     }  
560.     movePoint = event->globalPos() - pos();  
561.     QWidget::mousePressEvent(event);  
562. }  
563.   
564. void SettingPanel::mouseReleaseEvent(QMouseEvent *event)  
565. {  
566.     mousePress = false;  
567.     QWidget::mouseReleaseEvent(event);  
568. }  
569.   
570. void SettingPanel::mouseMoveEvent(QMouseEvent *event)  
571. {  
572.     if(mousePress) {  
573.         QPoint movePos = event->globalPos();  
574.         move(movePos - movePoint);  
575.     }  
576.     QWidget::mouseMoveEvent(event);  
577. }  

• 编译运行

三、总结

（1）相应的代码已上传到csdn：http://download.csdn.net/detail/taiyang1987912/9330019。
（2）未设计功能，界面还有很多不满意的地方，应用到项目中可以自行调整。
（3）若有建议，请留言，在此先感谢！