/**
 * @file PaiSearchLineEdit.cpp
 * @brief 实现一个具有搜索功能的LineEdit
 * @date 2012-02-25
 */
#include <QVariant>
#include <QPushButton>
#include <QIcon>

#include "PaiSearchLineEdit.h"

// 搜索框按钮属性名称
const char *RIGHT_BUTTON_PROPERTY = "rightButton";

using namespace pai::gui;

PaiSearchLineEdit::PaiSearchLineEdit(QWidget *pParent)
        : PaiLineEdit(pParent)
{
    SetRightIcon(":/Search.png");
    m_pRightPBtn->setProperty(RIGHT_BUTTON_PROPERTY, QVariant("Search"));

    setPlaceholderText(tr("Keyword Search"));
    updateGeometry();

    // 触发信号
    connect(m_pRightPBtn, SIGNAL(clicked()), this, SLOT(CleanSearchBox()));
    connect(this, SIGNAL(EditingStoped(const QString&)), this, SLOT(SetCurrentIcon()));
}

PaiSearchLineEdit::~PaiSearchLineEdit()
{
}

void PaiSearchLineEdit::SetCurrentIcon()
{
    PaiSearchLineEdit *pEdit = qobject_cast< PaiSearchLineEdit* > (sender());
    if(pEdit)
    {
        if(!pEdit->text().isEmpty())
        {
            pEdit->UpdateRightIcon(QIcon(":/clear.png"));
            m_pRightPBtn->setProperty(RIGHT_BUTTON_PROPERTY, QVariant("Clear"));
            //m_pRightPBtn->setEnabled(true);
        }
        else
        {
            pEdit->UpdateRightIcon(QIcon(":/Search.png"));
            m_pRightPBtn->setProperty(RIGHT_BUTTON_PROPERTY, QVariant("Search"));
            //m_pRightPBtn->setEnabled(false);
        }
    }
}

void PaiSearchLineEdit::CleanSearchBox()
{
    if(m_pRightPBtn && (m_pRightPBtn->property(RIGHT_BUTTON_PROPERTY).toString()) == QString("Clear"))
    {
        clear();
        UpdateRightIcon(QIcon(":/Search.png"));
        //m_pRightPBtn->setEnabled(false);
    }
}

void PaiSearchLineEdit::UpdateRightIcon(const QIcon & icon)
{
    if (m_pRightPBtn)
    {
        m_pRightPBtn->setIcon(icon);
    }
}

void PaiSearchLineEdit::enterEvent(QEvent *pEvent)
{
    QWidget::enterEvent(pEvent);
    m_pRightPBtn->setCursor(Qt::ArrowCursor);
}