Method T_TreeView

ElaWidgetToolsExample/ExamplePage/T_TreeView.cpp:13–141

#include "ElaTreeView.h"
#include "T_TreeViewModel.h"
T_TreeView::T_TreeView(QWidget* parent)
    : T_BasePage(parent)
{
    // 预览窗口标题
    setWindowTitle("ElaTreeView");

    // 顶部元素
    createCustomWidget("树型视图被放置于此，可在此界面体验其效果并按需添加进项目中");

    // ElaTreeView
    T_TreeViewModel* treeModel = new T_TreeViewModel(this);
    QHBoxLayout* treeLayout = new QHBoxLayout();
    treeLayout->setContentsMargins(0, 0, 10, 0);
    QWidget* treeSettingWidget = new QWidget(this);
    QVBoxLayout* treeSettingWidgetLayout = new QVBoxLayout(treeSettingWidget);
    treeSettingWidgetLayout->setContentsMargins(0, 0, 0, 0);
    treeSettingWidgetLayout->setSpacing(15);

    // 数据统计
    ElaText* dataText = new ElaText(QString("树模型总数据条数：%1").arg(treeModel->getItemCount()), this);
    dataText->setTextPixelSize(15);

    // ItemHeight
    ElaText* itemHeightText = new ElaText("ItemHeight", this);
    itemHeightText->setTextPixelSize(15);
    ElaSlider* itemHeightSlider = new ElaSlider(this);
    itemHeightSlider->setRange(200, 600);
    itemHeightSlider->setValue(350);
    ElaText* itemHeightValueText = new ElaText("35", this);
    itemHeightValueText->setTextPixelSize(15);
    connect(itemHeightSlider, &ElaSlider::valueChanged, this, [=](int value) {
        itemHeightValueText->setText(QString::number(value / 10));
        _treeView->setItemHeight(value / 10);
    });
    QHBoxLayout* itemHeightLayout = new QHBoxLayout();
    itemHeightLayout->setContentsMargins(0, 0, 0, 0);
    itemHeightLayout->addWidget(itemHeightText);
    itemHeightLayout->addWidget(itemHeightSlider);
    itemHeightLayout->addWidget(itemHeightValueText);

    // HeaderMargin
    ElaText* headerMarginText = new ElaText("HeaderMargin", this);
    headerMarginText->setTextPixelSize(15);
    ElaSlider* headerMarginSlider = new ElaSlider(this);
    headerMarginSlider->setRange(0, 200);
    headerMarginSlider->setValue(50);
    ElaText* headerMarginValueText = new ElaText("5", this);
    headerMarginValueText->setTextPixelSize(15);
    connect(headerMarginSlider, &ElaSlider::valueChanged, this, [=](int value) {
        headerMarginValueText->setText(QString::number(value / 10));
        _treeView->setHeaderMargin(value / 10);
    });
    QHBoxLayout* headerMarginLayout = new QHBoxLayout();
    headerMarginLayout->setContentsMargins(0, 0, 0, 0);
    headerMarginLayout->addWidget(headerMarginText);
    headerMarginLayout->addWidget(headerMarginSlider);
    headerMarginLayout->addWidget(headerMarginValueText);