三个文件
自动生成函数的外形
在头文件中写好函数的声明之后，右键-refactor-add definition， 将在指定文件生成一个函数名一组花括号
代码
1 //dialog头文件 2 #ifndef DIALOG_H 3 #define DIALOG_H 4 5 //1 组件的头文件，与组件同名 6 #include <QDialog> 7 #include<QCheckBox> 8 #include<QRadioButton> 9 #include<QPushButton> 10 #include<QPlainTextEdit> 11 12 class Dialog : public QDialog 13 { 14 Q_OBJECT 15 16 public: 17 Dialog(QWidget *parent = 0); 18 ~Dialog(); 19 20 private: 21 //0 用类对象的方式，生成组件 22 QCheckBox *checkBox_Underline, *checkBox_Italic, *checkBox_Bold; 23 QRadioButton *rBtn_Black, *rBtn_Blue, *rBtn_Red; 24 QPlainTextEdit *plainTextEdit; 25 QPushButton *btn_OK, *btn_Cancel, *btn_Close; 26 27 //3 自定义函数，右键-refactor-add definition 28 void iniUI(); 29 void iniSignalSlots(); 30 31 //2 建立槽 32 private slots: 33 void on_checkUnderline(bool checked); 34 void on_checkItalic(bool checked); 35 void on_checkBold(bool checked); 36 37 void setTextFntColor(); 38 }; 39 40 #endif // DIALOG_H
对应文件
1 #include "dialog.h" 2 #include<QHBoxLayout> 3 #include<QVBoxLayout> 4 5 6 //1 本应该在构造函数里面初始化的内容 7 void Dialog::iniUI() 8 { 9 //下划线、斜体、加粗 10 checkBox_Underline = new QCheckBox(tr("Underline")); 11 checkBox_Italic = new QCheckBox(tr("Italic")); 12 checkBox_Bold = new QCheckBox(tr("Bold")); 13 QHBoxLayout *HLayout1 = new QHBoxLayout; 14 HLayout1->addWidget(checkBox_Underline); 15 HLayout1->addWidget(checkBox_Italic); 16 HLayout1->addWidget(checkBox_Bold); 17 18 //字体颜色 19 rBtn_Black = new QRadioButton("Black"); 20 rBtn_Blue = new QRadioButton("Blue"); 21 rBtn_Red = new QRadioButton("Red"); 22 QHBoxLayout *HLayout2 = new QHBoxLayout; 23 HLayout2->addWidget(rBtn_Black); 24 HLayout2->addWidget(rBtn_Blue); 25 HLayout2->addWidget(rBtn_Red); 26 27 //文本框 28 plainTextEdit = new QPlainTextEdit(); 29 QFont font = plainTextEdit->font(); 30 font.setPointSize(20); 31 plainTextEdit -> setFont(font); 32 plainTextEdit -> setPlainText("Hello World! Today I am really sleepy... Sorry."); 33 34 //确认、取消、关闭 35 btn_OK = new QPushButton("OK"); 36 btn_Cancel = new QPushButton("Cancel"); 37 btn_Close = new QPushButton("Close"); 38 QHBoxLayout *HLayout3 = new QHBoxLayout; 39 HLayout3->addWidget(btn_OK); 40 HLayout3->addWidget(btn_Cancel); 41 HLayout3->addWidget(btn_Close); 42 43 //排列组合 44 QVBoxLayout *VLayout = new QVBoxLayout; 45 VLayout->addLayout(HLayout1); 46 VLayout->addLayout(HLayout2); 47 VLayout->addWidget(plainTextEdit); 48 VLayout->addLayout(HLayout3); 49 setLayout(VLayout); 50 } 51 52 //4 关联，最后一步 53 void Dialog::iniSignalSlots() 54 { 55 connect(btn_OK, SIGNAL(clicked()), this , SLOT(accept())); 56 connect(btn_Cancel, SIGNAL(clicked()), this , SLOT(reject())); 57 connect(btn_Close, SIGNAL(clicked()), this , SLOT(close())); 58 59 connect(checkBox_Underline, SIGNAL(clicked(bool)), this, SLOT(on_checkUnderline(bool))); 60 connect(checkBox_Italic, SIGNAL(clicked(bool)), this, SLOT(on_checkItalic(bool))); 61 connect(checkBox_Bold, SIGNAL(clicked(bool)), this, SLOT(on_checkBold(bool))); 62 63 connect(rBtn_Red, SIGNAL(clicked(bool)), this, SLOT(setTextFntColor())); 64 connect(rBtn_Blue, SIGNAL(clicked(bool)), this, SLOT(setTextFntColor())); 65 connect(rBtn_Black, SIGNAL(clicked(bool)), this, SLOT(setTextFntColor())); 66 } 67 68 //2 槽-下划线 69 void Dialog::on_checkUnderline(bool checked) 70 { 71 QFont font = plainTextEdit->font(); 72 font.setUnderline(checked); 73 plainTextEdit -> setFont(font); 74 } 75 76 void Dialog::on_checkItalic(bool checked) 77 { 78 QFont font = plainTextEdit->font(); 79 font.setItalic(checked); 80 plainTextEdit -> setFont(font); 81 } 82 83 void Dialog::on_checkBold(bool checked) 84 { 85 QFont font = plainTextEdit->font(); 86 font.setBold(checked); 87 plainTextEdit -> setFont(font); 88 } 89 90 //3 槽-字体颜色 91 void Dialog::setTextFntColor() 92 { 93 QPalette plet = plainTextEdit->palette(); 94 if(rBtn_Black->isChecked()) 95 plet.setColor(QPalette::Text, Qt::black); 96 else if(rBtn_Blue->isChecked()) 97 plet.setColor(QPalette::Text, Qt::blue); 98 else if(rBtn_Red->isChecked()) 99 plet.setColor(QPalette::Text, Qt::red); 100 else 101 plet.setColor(QPalette::Text, Qt::black); 102 103 plainTextEdit->setPalette(plet); 104 } 105 106 //0 将初始化内容另外创建函数，构造函数只留函数名 107 Dialog::Dialog(QWidget *parent) 108 : QDialog(parent) 109 { 110 iniUI(); 111 iniSignalSlots(); 112 } 113 114 Dialog::~Dialog() 115 { 116 117 }
main文件不做修改
参考
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