76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
#include "headerView.h"
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#include <QPainter>
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#include <QCheckBox>
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#include <QDebug>
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CHeaderView::CHeaderView(Qt::Orientation orientation, QWidget *parent)
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: QHeaderView(orientation, parent)
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{
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//设置Section可点击，若不设置则不能发出sectionClicked信号
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this->setSectionsClickable(true);
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//当发出sectionClicked就进入匿名函数
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connect(this, &CHeaderView::sectionClicked, [=](int logicalIndex)
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{
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//判断map容器是否包含当前点击列，包含则更新并发出columnSectionClicked
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if(m_columpnCheckedMap.contains(logicalIndex))
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{
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//更新当前值
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m_columpnCheckedMap[logicalIndex] = !m_columpnCheckedMap[logicalIndex];
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//发出信号
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emit columnSectionClicked(logicalIndex, m_columpnCheckedMap[logicalIndex]);
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}
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});
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}
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void CHeaderView::setColumnCheckable(int column, bool checkable)
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{
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//当可选值为true
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if(checkable)
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{
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//将指定列添加到map容器中
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m_columpnCheckedMap[column] = false;
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}
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else if(m_columpnCheckedMap.contains(column)) //当可选值为false，且map容器包含指定列
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{
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//移除指定列
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m_columpnCheckedMap.remove(column);
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}
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}
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bool CHeaderView::getColumnCheckable(int column)
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{
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return m_columpnCheckedMap[column];
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}
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void CHeaderView::paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const
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{
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qDebug()<<"paintSection" << endl;
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painter->save(); //保存当前画笔状态
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QHeaderView::paintSection(painter, rect, logicalIndex);
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painter->restore(); //恢复保存的画笔状态
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//当map容器包含当前列才绘制复选框
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if(m_columpnCheckedMap.contains(logicalIndex))
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{
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//创建样式对象并设置区域
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QStyleOptionButton styleOption;
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styleOption.rect = rect.adjusted(10, 0, 0, 0);
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styleOption.state = QStyle::State_Enabled;
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//根据map中的值设置状态
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if(m_columpnCheckedMap[logicalIndex])
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{
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styleOption.state |= QStyle::State_On;
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}
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else
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{
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styleOption.state |= QStyle::State_Off;
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}
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//调用this的style对象绘制复选框
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this->style()->drawControl(QStyle::CE_CheckBox, &styleOption, painter);
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}
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}
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