摘要：
参考：Qt实战12.可自由扩展的ToolBox Qt Xiaolo Blog Garden（cnblogs.com）1主窗口：：MainWindow（QWidget*parent）2：QMainWindow（parent）3，ui（newUi:：MainWindow）4｛5ui-˃setupUi（this）；6setWindowTitle（QStringLiteral（“自定义ToolBox演示Qt Xiuo”）
参考:Qt实战12.可自由展开的ToolBox - Qt小罗 - 博客园 (cnblogs.com)
1 MainWindow::MainWindow(QWidget *parent) 2 : QMainWindow(parent) 3 , ui(new Ui::MainWindow) 4 { 5 ui->setupUi(this); 6 setWindowTitle(QStringLiteral("自定义ToolBox演示 Qt小罗")); 7 setMinimumSize(300, 400); 8 resize(300, 450); 9 QLabel *label[4]; 10 for(int i = 0; i < 4; i++){ 11 label[i] = new QLabel; 12 label[i]->setFixedSize(300, 200); 13 } 14 label[0]->setStyleSheet("QLabel{background-color:red;}"); 15 label[1]->setStyleSheet("QLabel{background-color:green;}"); 16 label[2]->setStyleSheet("QLabel{background-color:blue;}"); 17 label[3]->setStyleSheet("QLabel{background-color:black;}"); 18 19 ToolBox *toolBox = new ToolBox(this); 20 toolBox->addWidget(QStringLiteral("Qt小罗Box1"), label[0]); 21 toolBox->addWidget(QStringLiteral("Qt小罗Box2"), label[1]); 22 toolBox->addWidget(QStringLiteral("Qt小罗Box3"), label[2]); 23 toolBox->addWidget(QStringLiteral("Qt小罗Box4"), label[3]); 24 25 setCentralWidget(toolBox); 26 }
1 #ifndef TOOLBOX_H 2 #define TOOLBOX_H 3 4 #include <QWidget> 5 #include <QScrollArea> 6 #include <QVBoxLayout> 7 #include "toolpage.hpp" 8 9 class QVBoxLayout; 10 class ToolBox : public QWidget 11 { 12 Q_OBJECT 13 14 private: 15 QVBoxLayout *m_pContentVBoxLayout; 16 QScrollArea *scrollArea; 17 18 public: 19 explicit ToolBox(QWidget *parent = nullptr) 20 : QWidget(parent) 21 { 22 QWidget *widget = new QWidget(this); 23 24 scrollArea = new QScrollArea(this); 25 scrollArea->setWidgetResizable(true); 26 27 QVBoxLayout *outerLayout = new QVBoxLayout(this); 28 outerLayout->setSpacing(0); 29 outerLayout->setContentsMargins(0, 0, 0, 0); 30 outerLayout->addWidget(scrollArea); 31 this->setLayout(outerLayout); 32 scrollArea->setWidget(widget); 33 34 m_pContentVBoxLayout = new QVBoxLayout; 35 m_pContentVBoxLayout->setSpacing(2); 36 m_pContentVBoxLayout->setContentsMargins(0, 0, 0, 0); 37 38 QVBoxLayout *innerLayout = new QVBoxLayout(widget); 39 innerLayout->setSpacing(2); 40 innerLayout->setContentsMargins(0, 0, 0, 0); 41 innerLayout->addLayout(m_pContentVBoxLayout); 42 innerLayout->addStretch(1); 43 } 44 45 void addWidget(const QString &title, QWidget *widget) 46 { 47 m_pContentVBoxLayout->addWidget(new ToolPage(title, widget, this)); 48 } 49 50 }; 51 52 #endif // TOOLBOX_H
1 #ifndef TOOLPAGE_H 2 #define TOOLPAGE_H 3 4 #include <QWidget> 5 #include <QPushButton> 6 #include <QVBoxLayout> 7 8 namespace Ui { 9 class ToolPage; 10 } 11 12 class QFormLayout; 13 class QLabel; 14 15 class ToolPage : public QWidget 16 { 17 Q_OBJECT 18 19 private: 20 QVBoxLayout *widgetLayout; 21 QWidget *widgetContent; 22 QPushButton *pushButtonFold; 23 24 public: 25 explicit ToolPage(const QString &title, QWidget *widget, QWidget *parent = nullptr) 26 : QWidget(parent) 27 { 28 widgetContent = new QWidget(this); 29 widgetContent->hide(); 30 widgetLayout = new QVBoxLayout(widgetContent); 31 widgetLayout->setContentsMargins(0, 0, 0, 0); 32 widgetLayout->setSpacing(0); 33 34 pushButtonFold = new QPushButton(this); 35 pushButtonFold->setMinimumHeight(26); 36 37 QVBoxLayout *mainLayout = new QVBoxLayout(this); 38 mainLayout->addWidget(pushButtonFold); 39 mainLayout->addWidget(widgetContent); 40 mainLayout->setSpacing(0); 41 mainLayout->setContentsMargins(0, 0, 0, 0); 42 connect(pushButtonFold, &QPushButton::clicked, this, [=](){ 43 widgetContent->setVisible(!widgetContent->isVisible()); 44 }); 45 pushButtonFold->setText(title); 46 widgetLayout->addWidget(widget); 47 } 48 49 private: 50 void addWidget(const QString &title, QWidget *widget) 51 { 52 pushButtonFold->setText(title); 53 widgetLayout->addWidget(widget); 54 } 55 56 57 58 }; 59 60 #endif // TOOLPAGE_H