QTreeView使用案例

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QGridLayout>
#include <QRadioButton>
#include <QCheckBox>
#include <QPushButton>
#include <QGridLayout>
#include <QFile>
#include <QDebug>
#include <QStandardItem>
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    QStandardItemModel*  model = new QStandardItemModel(4,1);
    QStandardItem *item1 = new QStandardItem("first");
    QStandardItem *item2 = new QStandardItem("second");
    QStandardItem *item3 = new QStandardItem("third");
    QStandardItem *item4 = new QStandardItem("fourth");

    model->setItem(0, 0, item1);
    model->setItem(1, 0, item2);
    model->setItem(2, 0, item3);
    model->setItem(3, 0, item4);

    QStandardItem *item5 = new QStandardItem("fifth");
    item4->appendRow(item5);
    ui->treeView->setModel(model);
    //下面是三种不同的风格
    QString styleOne = "QTreeView{\
            border: 1px solid lightgray;\
        }\
        QTreeView::item {\
                height: 40px;\
                border-radius: 2px;\
                border: 1px solid transparent;\
                background: transparent;\
                color: black;\
        }\
        QTreeView::item:hover {\
                border: 1px solid rgb(185, 215, 250);\
        }\
        QTreeView::item:selected {\
                border: 1px solid rgb(170, 190, 230);\
                background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 rgb(230, 240, 250), stop: 0.5 rgb(220, 235, 255), stop: 1.0 rgb(210, 230, 255));\
        }\
        QTreeView::branch:open:has-children {\
                image: url(./Resources/Images/branchOpen.png);\
        }\
        QTreeView::branch:closed:has-children {\
                image: url(./Resources/Images/branchClose.png);\
        }";
    QString styleTwo = "QTreeView{\
                border: 1px solid lightgray;\
        }\
        QTreeView::item {\
                height: 40px;\
                border-radius: 2px;\
                border: 1px solid transparent;\
                background: transparent;\
                color: black;\
        }\
        QTreeView::item:has-children {\
                border: none;\
                border-bottom: 1px solid lightgray;\
        }\
        QTreeView::item:hover {\
                border: 1px solid rgb(170, 190, 230);\
                background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 rgb(230, 240, 250), stop: 0.5 rgb(220, 235, 255), stop: 1.0 rgb(210, 230, 255));\
        }\
        QTreeView::item:selected {\
                border: 1px solid rgb(170, 190, 230);\
                background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 rgb(230, 240, 250), stop: 0.5 rgb(220, 235, 255), stop: 1.0 rgb(210, 230, 255));\
        }\
        QTreeView::branch:open:has-children {\
                image: url(./Resources/Images/branchOpen2.png);\
        }\
        QTreeView::branch:closed:has-children {\
                image: url(./Resources/Images/branchClose2.png);\
        }";
    QString styleThree = "QTreeView{\
                border: 1px solid lightgray;\
        }\
        QTreeView::item {\
                height: 25px;\
                border: none;\
                background: transparent;\
                color: black;\
        }\
        QTreeView::item:hover {\
                background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 rgb(255, 220, 130), stop: 0.5 rgb(255, 220, 130), stop: 1.0 rgb(255, 230, 150));\
        }\
        QTreeView::item:selected {\
                background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 rgb(255, 200, 100), stop: 0.5 rgb(255, 230, 150), stop: 1.0 rgb(255, 240, 150));\
        }\
        QTreeView::branch:open:has-children {\
                image: url(./Resources/Images/branchOpen.png);\
        }\
        QTreeView::branch:closed:has-children {\
                image: url(./Resources/Images/branchClose.png);\
        }";
        ui->treeView->setStyleSheet(styleOne);

}

MainWindow::~MainWindow()
{
    delete ui;
}