External/common/DateSelect/scopecalendarbtn.cpp

#include "scopecalendarbtn.h"
#include "calendarex.h"
#include <QDebug>

ScopeCalendarBtn::ScopeCalendarBtn(QWidget *parent) 
    : QPushButton(parent)
    , m_dtFrom(QDate::currentDate())
    , m_dtTo(QDate::currentDate())
    , m_dtMin(QDate(1,1,1))
    , m_dtMax(QDate(9999,12,31))
    , m_strFormat("%1 - %2")
{
    connect(this, &QPushButton::clicked, this, &ScopeCalendarBtn::OnPopBtnClicked);
    SetScope(m_dtFrom, m_dtTo);
}

void ScopeCalendarBtn::SetMinimumDate(const QDate &date)
{
    m_dtMin = date;
    m_dtMax = qMax(m_dtMin, m_dtMax);
    m_dtFrom = qMax(m_dtMin, m_dtFrom);
    m_dtTo = qMax(m_dtMin, m_dtTo);
}

void ScopeCalendarBtn::SetMiaxmumDate(const QDate &date)
{
    m_dtMax = date;
    m_dtMin = qMin(m_dtMax, m_dtMin);
    m_dtFrom = qMin(m_dtMax, m_dtFrom);
    m_dtTo = qMin(m_dtMax, m_dtTo);
}

void ScopeCalendarBtn::SetScope(const QDate &from, const QDate &to)
{
    m_dtFrom = qBound(m_dtMin, from, m_dtMax);
    m_dtTo = qBound(m_dtMin, to, m_dtMax);
    QString text = QString(m_strFormat).arg(m_dtFrom.toString("yyyy-MM-dd"), m_dtTo.toString("yyyy-MM-dd"));
    setText(text);
}

void ScopeCalendarBtn::OnPopBtnClicked()
{
    ScopedCalendar *pC = new ScopedCalendar(m_dtFrom, m_dtTo);
    pC->show();
    pC->positionCalendarPopup(this);
    if(m_dtMin.isValid()) pC->SetMinimumDate(m_dtMin);
    if(m_dtMax.isValid()) pC->SetMaximumDate(m_dtMax);
    connect(pC, &ScopedCalendar::sig_ScopeSelected, this, &ScopeCalendarBtn::OnScopeSelected);
}

void ScopeCalendarBtn::OnScopeSelected(const QDate &from, const QDate &to)
{
    SetScope(from, to);
    emit sig_ScopeSelected(from, to);
}

void ScopeCalendarBtn::paintEvent(QPaintEvent *event)
{
//    PainterEx painter(this);
//    painter.SetBrushOnly(Qt::gray);
//    painter.drawRect(rect());
    QPushButton::paintEvent(event);
}