#include "dashboard.h"
#include "dataPanel.h"

#include <QDialog>
#include <QPushButton>
#include <QMenu>
#include <QVBoxLayout>
#include <QKeyEvent>

#define tabButtonHeight 41
Dashboard::Dashboard(const QString& strName, QObject *parent)
    : QObject(parent)
{
    //displayArea
    m_pDisplayArea = new QWidget();
    m_pDisplayArea->setObjectName("displayArea");
    //m_pDisplayArea->setStyleSheet("QWidget #displayArea {background-color: rgb(18, 25, 30);}");
    //tabButton,自适应text内容
    m_pTabButton = new QPushButton();
    m_pTabButton->setContextMenuPolicy(Qt::CustomContextMenu);
    m_pTabButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
    m_pTabButton->setStyleSheet("QPushButton{\n"
                                "   font:600 11pt \"微软雅黑\";\n"
                                "   padding-left:5px;\n"
                                "   padding-right:5px;\n"
                                "}\n");
    connect(m_pTabButton, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(contextMenu_tabButton(const QPoint&)));
    //右键菜单
    m_pTabBtnMenu = new QMenu();
    m_pTabBtnMenu->setStyleSheet("QMenu{\n"
                                 "   background-color:rgb(36,43,50);\n"
                                 "   border:1px solid rgb(6, 6, 6);\n"
                                 "}\n"
                                 "QMenu:item{\n"
                                 "   padding-left:20px;\n"
                                 "   padding-right:20px;\n"
                                 "   font:9pt \"微软雅黑\";\n"
                                 "   color:rgb(220,220,220);\n"
                                 "   height:26px;\n"
                                 "}\n"
                                 "QMenu:item:selected{\n"
                                 "   background-color: rgba(67,160,249, 80);\n"
                                 "}\n");
    m_pTabBtnMenu->addAction(QString::fromWCharArray(L"删除"), this, SLOT(onAction_remove()));
    m_pTabBtnMenu->addAction(QString::fromWCharArray(L"重命名"), this, SLOT(onAction_rename()));

    m_nPanenlNameNumber = 0;

    setName(strName);
}

Dashboard::~Dashboard()
{
    //m_pMdiArea和m_pTabButton不需要进行以下手动析构，因为QObject建立起的父子结构会自动析构，自动析构时不会将其置为nullptr，所以if判断无效，会引起'SIGSEGV'（存储器段错误）报错
    if(m_pTabBtnMenu)
    {
        delete m_pTabBtnMenu;
        m_pTabBtnMenu = nullptr;
    }
}

void Dashboard::updateTabButtonSize()
{
    QFontMetrics metrics(m_pTabButton->font());
    QRect rect = metrics.boundingRect(m_pTabButton->text());
    m_pTabButton->setMinimumSize(rect.width() + 30, tabButtonHeight);
    m_pTabButton->setMaximumSize(rect.width() + 30, tabButtonHeight);

    /*int nWidth = 0;
    for(int n=0; n<strName.size(); n++)
    {
        QChar c = strName.at(n);
        ushort uni = c.unicode();
        if(uni >= 0x4E00 && uni <= 0x9FA5) //为汉字
            nWidth += 12;
        else
            nWidth += 7;
    }
    nWidth += 35;
    m_pTabButton->setMinimumSize(nWidth, tabButtonHeight);
    m_pTabButton->setMaximumSize(nWidth, tabButtonHeight);*/
}

const QString& Dashboard::getName()
{
    return m_strName;
}
void Dashboard::setName(const QString& strName)
{
    m_strName = strName;
    m_pTabButton->setText(strName);
    updateTabButtonSize();
}

QPushButton* Dashboard::tabButton()
{
    return m_pTabButton;
}

QWidget* Dashboard::displayArea()
{
    return m_pDisplayArea;
}

void Dashboard::setSelected(bool bSelected)
{
    QString strStyleSheet = "";
    if(bSelected)
        strStyleSheet = "QPushButton{\n"
                        "   color:rgb(250,250,250);\n"
                        "   font:600 11pt \"微软雅黑\";\n"
                        "   border-bottom:3px solid rgb(67,160,249);\n"
                        "}\n"
                        "QPushButton:hover{\n"
                        "   background-color: rgba(60, 60, 60, 150);\n"
                        "}\n";
    else
        strStyleSheet = "QPushButton{\n"
                        "   color:rgb(220,220,220);\n"
                        "   font:11pt \"微软雅黑\";\n"
                        "   border-bottom:0px;\n"
                        "}\n"
                        "QPushButton:hover{\n"
                          "   background-color: rgba(60, 60, 60, 150);\n"
                        "}\n";

    m_pTabButton->setStyleSheet(strStyleSheet);
    updateTabButtonSize();
}

void Dashboard::addPanel(const QString& strType)
{
    DataPanel* panel = new DataPanel(m_pDisplayArea);
    connect(panel, SIGNAL(sgl_remove(const QString&)), this, SLOT(onSignal_removePanel(const QString&)));
    QString strDefaultName = "dataPanel-" + QString::number(m_nPanenlNameNumber);
    m_nPanenlNameNumber++;
    panel->setName(strDefaultName);
    //panel->setStyleSheet("QDialog{background-color:transparent;}");
    int nCount = m_dataPanels.count();
    //QPoint originPoint = m_pDisplayArea->mapToGlobal(QPoint(0, 0));
    int nX = /*originPoint.x() +*/ (m_pDisplayArea->width() - panel->width()) * 0.5 + nCount * 10;
    int nY = /*originPoint.y() +*/ (m_pDisplayArea->height() - panel->height()) * 0.5 + nCount * 10;
    panel->move(nX, nY);
    panel->show();
    m_dataPanels.push_back(panel);
}

void Dashboard::removePanel(const QString& strName)
{
    int nIndex = -1;
    for(int n = 0; n < m_dataPanels.count(); n++)
    {
        if(m_dataPanels.at(n)->getName() == strName)
        {
            nIndex = n;
            break;
        }
    }

    if(nIndex != -1)
    {
        DataPanel* panel = m_dataPanels.takeAt(nIndex);
        delete panel;
    }
}

void Dashboard::contextMenu_tabButton(const QPoint& pos)
{
    QPoint originPoint = m_pTabButton->mapToGlobal(QPoint(0, 0));
    m_pTabBtnMenu->popup(originPoint + pos);
}

void Dashboard::onAction_remove()
{
    emit sgl_remove();
}
void Dashboard::onAction_rename()
{
    emit sgl_rename();
}

void Dashboard::onSignal_removePanel(const QString& strName)
{
    removePanel(strName);
}