技术博客2

来源：互联网发布：java孤傲苍狼博客园编辑：程序博客网时间：2024/05/20 11:52

简述

通过前几节的自定义窗体的学习，我们可以很容易的写出一套属于自己风格的界面框架，通用于各种窗体，比如：QWidget、QDialog、QMainWindow。

大多数窗体的实现都是采用控件堆积来完成的，只要思路清晰，再复杂的界面实现起来都游刃有余。

效果

这里写图片描述

自定义提示框

message_box.h

#ifndef MESSAGE_BOX#define MESSAGE_BOX#include <QMessageBox>#include <QDialogButtonBox>#include <QGridLayout>#include "custom_window.h"class QLabel;class MessageBox : public CustomWindow{    Q_OBJECTpublic:    explicit MessageBox(QWidget *parent = 0, const QString &title = tr("Tip"), const QString &text = "",                        QMessageBox::StandardButtons buttons = QMessageBox::Ok, QMessageBox::StandardButton defaultButton = QMessageBox::Ok);    ~MessageBox();    QAbstractButton *clickedButton() const;    QMessageBox::StandardButton standardButton(QAbstractButton *button) const;    // 设置默认按钮    void setDefaultButton(QPushButton *button);    void setDefaultButton(QMessageBox::StandardButton button);    // 设置窗体标题    void setTitle(const QString &title);    // 设置提示信息    void setText(const QString &text);    // 设置窗体图标    void setIcon(const QString &icon);    // 添加控件-替换提示信息所在的QLabel    void addWidget(QWidget *pWidget);protected:    // 多语言翻译    void changeEvent(QEvent *event);private slots:    void onButtonClicked(QAbstractButton *button);private:    void translateUI();    int execReturnCode(QAbstractButton *button);private:    QLabel *m_pIconLabel;    QLabel *m_pLabel;    QGridLayout *m_pGridLayout;    QDialogButtonBox *m_pButtonBox;    QAbstractButton *m_pClickedButton;    QAbstractButton *m_pDefaultButton;};1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

message_box.cpp

#include <QLabel>#include <QPushButton>#include <QMessageBox>#include <QCheckBox>#include <QHBoxLayout>#include <QEvent>#include <QApplication>#include "message_box.h"MessageBox::MessageBox(QWidget *parent, const QString &title, const QString &text,                       QMessageBox::StandardButtons buttons, QMessageBox::StandardButton defaultButton)    : CustomWindow(parent){    setWindowIcon(QIcon(":/Images/logo"));    setWindowTitle(title);    setMinimumSize(300, 130);    setMinimizeVisible(false);    setMaximizeVisible(false);    setWidgetResizable(false);    m_pButtonBox = new QDialogButtonBox(this);    m_pButtonBox->setStandardButtons(QDialogButtonBox::StandardButtons(int(buttons)));    setDefaultButton(defaultButton);    QPushButton *pYesButton = m_pButtonBox->button(QDialogButtonBox::Yes);    if (pYesButton != NULL)    {        pYesButton->setObjectName("blueButton");        pYesButton->setStyle(QApplication::style());    }    m_pIconLabel = new QLabel(this);    m_pLabel = new QLabel(this);    QPixmap pixmap(":/Images/information");    m_pIconLabel->setPixmap(pixmap);    m_pIconLabel->setFixedSize(35, 35);    m_pIconLabel->setScaledContents(true);    m_pLabel->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);    m_pLabel->setObjectName("whiteLabel");    m_pLabel->setOpenExternalLinks(true);    m_pLabel->setText(text);    m_pGridLayout = new QGridLayout();    m_pGridLayout->addWidget(m_pIconLabel, 0, 0, 2, 1, Qt::AlignTop);    m_pGridLayout->addWidget(m_pLabel, 0, 1, 2, 1);    m_pGridLayout->addWidget(m_pButtonBox, m_pGridLayout->rowCount(), 0, 1, m_pGridLayout->columnCount());    m_pGridLayout->setSizeConstraint(QLayout::SetNoConstraint);    m_pGridLayout->setHorizontalSpacing(10);    m_pGridLayout->setVerticalSpacing(10);    m_pGridLayout->setContentsMargins(10, 10, 10, 10);    m_pLayout->addLayout(m_pGridLayout);    translateUI();    connect(m_pButtonBox, SIGNAL(clicked(QAbstractButton*)), this, SLOT(onButtonClicked(QAbstractButton*)));}MessageBox::~MessageBox(){}void MessageBox::changeEvent(QEvent *event){    switch (event->type())    {    case QEvent::LanguageChange:        translateUI();        break;    default:        CustomWindow::changeEvent(event);    }}void MessageBox::translateUI(){    QPushButton *pYesButton = m_pButtonBox->button(QDialogButtonBox::Yes);    if (pYesButton != NULL)        pYesButton->setText(tr("Yes"));    QPushButton *pNoButton = m_pButtonBox->button(QDialogButtonBox::No);    if (pNoButton != NULL)        pNoButton->setText(tr("No"));    QPushButton *pOkButton = m_pButtonBox->button(QDialogButtonBox::Ok);    if (pOkButton != NULL)        pOkButton->setText(tr("Ok"));    QPushButton *pCancelButton = m_pButtonBox->button(QDialogButtonBox::Cancel);    if (pCancelButton != NULL)        pCancelButton->setText(tr("Cancel"));}QMessageBox::StandardButton MessageBox::standardButton(QAbstractButton *button) const{    return (QMessageBox::StandardButton)m_pButtonBox->standardButton(button);}QAbstractButton *MessageBox::clickedButton() const{    return m_pClickedButton;}int MessageBox::execReturnCode(QAbstractButton *button){    int nResult = m_pButtonBox->standardButton(button);    return nResult;}void MessageBox::onButtonClicked(QAbstractButton *button){    m_pClickedButton = button;    done(execReturnCode(button));}void MessageBox::setDefaultButton(QPushButton *button){    if (!m_pButtonBox->buttons().contains(button))        return;    m_pDefaultButton = button;    button->setDefault(true);    button->setFocus();}void MessageBox::setDefaultButton(QMessageBox::StandardButton button){    setDefaultButton(m_pButtonBox->button(QDialogButtonBox::StandardButton(button)));}void MessageBox::setTitle(const QString &title){    setWindowTitle(title);}void MessageBox::setText(const QString &text){    m_pLabel->setText(text);}void MessageBox::setIcon(const QString &icon){    m_pIconLabel->setPixmap(QPixmap(icon));}void MessageBox::addWidget(QWidget *pWidget){    m_pLabel->hide();    m_pGridLayout->addWidget(pWidget, 0, 1, 2, 1);}1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151

接口说明

CustomWindow
主要对界面的无边框可拖动进行了封装
MessageBox
整体界面布局及事件处理参考了QMessageBox源码，接口包含：设置标题、提示信息、默认按钮及事件触发等操作。

二次封装

针对于各种提示框，我们可以再次进行封装，将常用的提取出来，作为全局函数来使用。

QMessageBox::StandardButton showInformation(QWidget *parent, const QString &title,                                            const QString &text, QMessageBox::StandardButtons buttons,                                            QMessageBox::StandardButton defaultButton){    MessageBox msgBox(parent, title, text, buttons, defaultButton);    msgBox.setIcon(":/Images/information");    if (msgBox.exec() == -1)        return QMessageBox::Cancel;    return msgBox.standardButton(msgBox.clickedButton());}QMessageBox::StandardButton showError(QWidget *parent, const QString &title,                                      const QString &text, QMessageBox::StandardButtons buttons,                                      QMessageBox::StandardButton defaultButton){    MessageBox msgBox(parent, title, text, buttons, defaultButton);    msgBox.setIcon(":/Images/error");    if (msgBox.exec() == -1)        return QMessageBox::Cancel;    return msgBox.standardButton(msgBox.clickedButton());}QMessageBox::StandardButton showSuccess(QWidget *parent, const QString &title,                                        const QString &text, QMessageBox::StandardButtons buttons,                                        QMessageBox::StandardButton defaultButton){    MessageBox msgBox(parent, title, text, buttons, defaultButton);    msgBox.setIcon(":/Images/success");    if (msgBox.exec() == -1)        return QMessageBox::Cancel;    return msgBox.standardButton(msgBox.clickedButton());}QMessageBox::StandardButton showQuestion(QWidget *parent, const QString &title,                                         const QString &text, QMessageBox::StandardButtons buttons,                                         QMessageBox::StandardButton defaultButton){    MessageBox msgBox(parent, title, text, buttons, defaultButton);    msgBox.setIcon(":/Images/question");    if (msgBox.exec() == -1)        return QMessageBox::Cancel;    return msgBox.standardButton(msgBox.clickedButton());}QMessageBox::StandardButton showWarning(QWidget *parent, const QString &title,                                        const QString &text, QMessageBox::StandardButtons buttons,                                        QMessageBox::StandardButton defaultButton){    MessageBox msgBox(parent, title, text, buttons, defaultButton);    msgBox.setIcon(":/images/warning");    if (msgBox.exec() == -1)        return QMessageBox::Cancel;    return msgBox.standardButton(msgBox.clickedButton());}QMessageBox::StandardButton showCritical(QWidget *parent, const QString &title,                                         const QString &text, QMessageBox::StandardButtons buttons,                                         QMessageBox::StandardButton defaultButton){    MessageBox msgBox(parent, title, text, buttons, defaultButton);    msgBox.setIcon(":/Images/warning");    if (msgBox.exec() == -1)        return QMessageBox::Cancel;    return msgBox.standardButton(msgBox.clickedButton());}QMessageBox::StandardButton showCheckBoxQuestion(QWidget *parent, const QString &title,                                                 const QString &text, QMessageBox::StandardButtons buttons,                                                 QMessageBox::StandardButton defaultButton){    MessageBox msgBox(parent, title, text, buttons, defaultButton);    msgBox.setIcon(":/Images/question");    QCheckBox *pCheckBox = new QCheckBox(&msgBox);    pCheckBox->setText(text);    msgBox.addWidget(pCheckBox);    if (msgBox.exec() == -1)        return QMessageBox::Cancel;    QMessageBox::StandardButton standardButton = msgBox.standardButton(msgBox.clickedButton());    if (standardButton == QMessageBox::Yes)    {        return pCheckBox->isChecked() ? QMessageBox::Yes : QMessageBox::No;    }    return QMessageBox::Cancel;}1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86

使用方式

showInformation(this, QStringLiteral("提示"), QStringLiteral("这是一个普通的提示框-Information！"));showQuestion(this, QStringLiteral("提示"), QStringLiteral("这是一个普通的提示框-Question！"));showSuccess(this, QStringLiteral("提示"), QStringLiteral("这是一个普通的提示框-Success！"));showError(this, QStringLiteral("提示"), QStringLiteral("这是一个普通的提示框-Error！"));

阅读全文

0 0