#include "formscenedlg.h"
#include "ui_formscenedlg.h"
#include <QTimer>
#include <QStackedWidget>
#include <QDebug>
#include <QScrollBar>



FormScenedlg::FormScenedlg(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::FormScenedlg),pPicScene(0),tabMainWindow(0),dialogFileOperation(0),textEdit(0)
{
    ui->setupUi(this);
    SWmaximumSize1={};
    SWgeometry1={};
    FVgeometry2={};
    GVgeometry3={};


    QPushButton *btnArray[]={
        //        ui->KeyDown,
        //        ui->KeyLeft,
        //        ui->KeyRight,
        //        ui->KeyUp,
        ui->itemLast,
        ui->itemFirst,
        ui->saveAsButton,
        ui->saveButton,
        ui->addButton,
        //ui->itemPrev,
        //ui->itemNext,
        ui->previewButton,
        ui->newfileButton,
        ui->openfileButton,
        ui->delButton,
        ui->EditItemButton,
        ui->insertImage,
        ui->reduceButton,
        ui->enlargeButton,
        ui->ZoomOrigin
    };

    const QString sysfamily=qApp->font().family();

    for(int i=0;i<sizeof(btnArray)/sizeof(*btnArray);i++)
    {
        QFont font = ui->ZoomOrigin->font(); // 获取当前字体
        const int defaultPointSize=30;//font.pointSize()<10?10:font.pointSize();

        if(Public::ReadLanguageName()=="English"){
            font.setFamily("Arial");
        }
//        font.setFamily("WenQuanYiMH");
        //font.setFamily("wenquanyi");
        font.setBold(true);
        font.setPointSize(1*defaultPointSize); // 设置字体大小为12点
        font.setWeight(QFont::Black);
        btnArray[i]->setFont(font); // 应用新字体到按钮
    }

    //不显示测试按钮
    ui->itemPrev->setVisible(false);
    ui->itemNext->setVisible(false);
    ui->ZoomOrigin->setVisible(false);
    ui->btn_test2->setVisible(false);

}

FormScenedlg::~FormScenedlg()
{
    delete ui;
    delete dialogFileOperation;
    dialogFileOperation=0;
}
void FormScenedlg::horizontalScrollBar_valueChanged(int value)
{
    QTimer::singleShot(100,this,SLOT(sceneRectChanged_timerHandler()));
}

void FormScenedlg::verticalScrollBar_valueChanged(int value)
{
    QTimer::singleShot(100,this,SLOT(sceneRectChanged_timerHandler()));
}

void FormScenedlg::bindScene(PicScene *pPicScene, QGraphicsView *pGraphicViewer,QTextEdit *pTextEdit){
    this->pPicScene = pPicScene;
    this->pViewer = pGraphicViewer;
    this->textEdit = pTextEdit;

    QObject::connect(pViewer->verticalScrollBar(), SIGNAL(valueChanged(int)), this,SLOT(verticalScrollBar_valueChanged(int)));
    QObject::connect(pViewer->horizontalScrollBar(), SIGNAL(valueChanged(int)), this,SLOT(horizontalScrollBar_valueChanged(int)));

    dialogFileOperation = new DialogFileOperation(0);
    dialogFileOperation->setWindowTitle(tr("插入图片"));
    connect(dialogFileOperation,SIGNAL(openFile(QString,bool)),this,SLOT(onFileOpen(QString,bool)));



    //edit@12-12读取旧的布局信息
    const QStackedWidget* pStackedWidget= static_cast<QStackedWidget*>(this->pViewer->parentWidget()->parentWidget());
    const QWidget* fileSceneViewer = static_cast<QWidget*>(this->pViewer->parentWidget());
    if(pStackedWidget && fileSceneViewer)
    {
        tabMainWindow=fileSceneViewer->parentWidget()->parentWidget();
        SWmaximumSize1=pStackedWidget->maximumSize();
        SWgeometry1=pStackedWidget->geometry();

        //QSize FVmaximumSize=fileSceneViewer->maximumSize();
        FVgeometry2=fileSceneViewer->geometry();

        //QSize GVmaximumSize=this->pViewer->maximumSize();
        GVgeometry3=this->pViewer->geometry();

        //qDebug()<<"1-2-3-size="<<SWmaximumSize1<<", "<<SWgeometry1<<", "<<FVgeometry2<<", "<<GVgeometry3;
    }
}
void FormScenedlg::sceneRectChanged_timerHandler()
{
//    if(this->pViewer && this->pPicScene)
//    {
//        const QPoint originScene=pViewer->mapFromScene(0,0);
//        if(originScene!=lastOriginScene)
//        {
//            lastOriginScene=originScene;
            this->pPicScene->update();
//            //qDebug()<<"sceneRectChanged-update="<<lastOriginScene;
//        }
//        //qDebug()<<"sceneRectChanged="<<this->pPicScene->sceneRect();
//    }
}

//edit@12-12 改变布局
void FormScenedlg::Layout_ToNew()
{
    QStackedWidget* pStackedWidget= static_cast<QStackedWidget*>(this->pViewer->parentWidget()->parentWidget());
    QWidget* fileSceneViewer = static_cast<QWidget*>(this->pViewer->parentWidget());

    //QWidget *tabMainWindow=fileSceneViewer->parentWidget()->parentWidget();
    QHBoxLayout *horizontalLayout=dynamic_cast<QHBoxLayout*>(FormScenedlg::findChildAll(tabMainWindow->layout(),"horizontalLayout"));//edit@12-14 信息提示栏
    FormScenedlg::showQLayout(horizontalLayout,false);

    if(pStackedWidget && fileSceneViewer)
    {
        pStackedWidget->setMaximumSize(SWmaximumSize1.width(),SWmaximumSize1.height()+150);
        pStackedWidget->setGeometry(SWgeometry1.x(),SWgeometry1.y(),SWgeometry1.width(),SWgeometry1.height()+150);
        fileSceneViewer->setGeometry(FVgeometry2.x(),FVgeometry2.y(),FVgeometry2.width(),FVgeometry2.height()+150);
        this->pViewer->setGeometry(GVgeometry3.x(),GVgeometry3.y(),GVgeometry3.width(),GVgeometry3.height()+80);
    }

}
//edit@12-12 恢复布局
void FormScenedlg::Layout_ToDefault()
{
    QStackedWidget* pStackedWidget= static_cast<QStackedWidget*>(this->pViewer->parentWidget()->parentWidget());
    QWidget* fileSceneViewer = static_cast<QWidget*>(this->pViewer->parentWidget());

    //QWidget *tabMainWindow=fileSceneViewer->parentWidget()->parentWidget();
    QHBoxLayout *horizontalLayout=dynamic_cast<QHBoxLayout*>(FormScenedlg::findChildAll(tabMainWindow->layout(),"horizontalLayout"));//edit@12-14 信息提示栏
    FormScenedlg::showQLayout(horizontalLayout,true);

    if(pStackedWidget && fileSceneViewer)
    {
        pStackedWidget->setMaximumSize(SWmaximumSize1);
        pStackedWidget->setGeometry(SWgeometry1);
        fileSceneViewer->setGeometry(FVgeometry2);
        this->pViewer->setGeometry(GVgeometry3);
    }
}

void FormScenedlg::changeEvent(QEvent *e)
{
    QWidget::changeEvent(e);
    switch (e->type()) {
    case QEvent::LanguageChange:
        ui->retranslateUi(this);
        break;
    default:
        break;
    }
}

void FormScenedlg::on_addButton_clicked()
{
    emit addButton();
}

void FormScenedlg::on_EditItemButton_clicked()
{
    emit EditItemButton();
}

void FormScenedlg::on_delButton_clicked()
{
    emit delButton();
}

void FormScenedlg::on_newfileButton_clicked()
{
emit newfileButton();
}

void FormScenedlg::on_openfileButton_clicked()
{
emit openfileButton();
}

void FormScenedlg::on_previewButton_clicked()
{
    pPicScene->clearSelection();
    foreach (QGraphicsItem *item, pPicScene->items()) {
        item->clearFocus();
        item->setSelected(false);
    }
    //ui->previewButton->setFocus();
    emit previewButton();
}

void FormScenedlg::on_saveButton_clicked()
{
emit saveButton();
}

void FormScenedlg::on_saveAsButton_clicked()
{
emit saveAsButton();
}
//edit@12-06 放大
void FormScenedlg::on_enlargeButton_clicked()
{
    emit enlargeButton();
    adjustItemsPos();
    //QTimer::singleShot(100,this,SLOT(adjustItemsPos()));
}

void FormScenedlg::on_reduceButton_clicked()
{
    emit reduceButton();
    adjustItemsPos();
    //QTimer::singleShot(100,this,SLOT(adjustItemsPos()));
}

void FormScenedlg::on_KeyLeft_clicked()
{
    pViewer->setFocus();
#ifndef Q_OS_WIN32
    QWSServer::sendKeyEvent(0,Qt::Key_Left,Qt::NoModifier,true,false);		//向系统发送键盘事件
#endif
    //QTimer::singleShot(10,this,SLOT(adjustItemsPosFalse()));
}

void FormScenedlg::on_KeyUp_clicked()
{
    pViewer->setFocus();
#ifndef Q_OS_WIN32
    QWSServer::sendKeyEvent(0,Qt::Key_Up,Qt::NoModifier,true,false);		//向系统发送键盘事件
#endif
//QTimer::singleShot(10,this,SLOT(adjustItemsPosFalse()));
}

void FormScenedlg::on_KeyRight_clicked()
{
    pViewer->setFocus();
#ifndef Q_OS_WIN32
    QWSServer::sendKeyEvent(0,Qt::Key_Right,Qt::NoModifier,true,false);		//向系统发送键盘事件
#endif
//QTimer::singleShot(10,this,SLOT(adjustItemsPosFalse()));
}

void FormScenedlg::on_KeyDown_clicked()
{
    pViewer->setFocus();
#ifndef Q_OS_WIN32
    QWSServer::sendKeyEvent(0,Qt::Key_Down,Qt::NoModifier,true,false);		//向系统发送键盘事件
#endif
//QTimer::singleShot(10,this,SLOT(adjustItemsPosFalse()));
}

void FormScenedlg::on_insertImage_clicked()
{
    if(dialogFileOperation)
    {
        dialogFileOperation->refreshListView(PICFILE);
        dialogFileOperation->exec();
    }
}

void FormScenedlg::on_ZoomOrigin_clicked()
{
    adjustItemsPos(false);
}

void FormScenedlg::on_btn_test2_clicked()
{
    emit ZoomOrigin();

}

//edit@12-11 选中下一个图元
void FormScenedlg::on_itemNext_clicked()
{
    QList<QGraphicsItem *> items=pPicScene->items();
    if(!items.empty())
    {
        int index=0;
        for(index=0;index<items.size();index++)
        {
            if(items.at(index)->isSelected())break;
        }

        pPicScene->clearSelection();
        if(index+1<items.size())
        {
            index+=1;
            //edit@12-11选中下一个
            items.at(index)->setSelected(true);
            items.at(index)->setFocus();
        }
        else
        {
            //edit@12-11 超范围,滚动到第一个
            index=0;
            items.front()->setSelected(true);
            items.front()->setFocus();
        }
        //PrintselectedItemInfo();

    }
}

//edit@12-11选中上一个图元
void FormScenedlg::on_itemPrev_clicked()
{
    QList<QGraphicsItem *> items=pPicScene->items();
    if(!items.empty())
    {
        int index=0;
        for(index=0;index<items.size();index++)
        {
            if(items.at(index)->isSelected())break;
        }

        pPicScene->clearSelection();
        if(0<=index-1)
        {
            index-=1;
            //edit@12-11选中前一个
            items.at(index)->setSelected(true);
            items.at(index)->setFocus();
        }
        else
        {
            //edit@12-11 超范围,滚动到最后位置
            index=items.size()-1;
            items.back()->setSelected(true);
            items.back()->setFocus();
        }
        //PrintselectedItemInfo();
    }
}

void FormScenedlg::PrintselectedItemInfo()
{
    foreach (QGraphicsItem *item, pPicScene->items()) {
        if(item->isSelected())
        {
            qDebug()<<"PrintselectedItemInfo-pos="<<item->pos();
            //qDebug()<<"PrintselectedItemInfo-pos="<<pPicScene->views().front()->mapFromScene(item->pos());
            break;
        }
    }
}
//edit@12-11 自动调整元素位置到原点
void FormScenedlg::adjustItemsPos(bool bMoveScrollBar)
{
    if(bMoveScrollBar)
    {
        pViewer->verticalScrollBar()->setValue(0);
        pViewer->horizontalScrollBar()->setValue(0);
    }

    QPointF movePoint;
    const QRectF sceneRect=pPicScene->sceneRect();
    qreal left=sceneRect.width(),top=sceneRect.width();
    foreach (const QGraphicsItem *item, pPicScene->items()) {
        left=qMin(left,item->pos().x());
        top=qMin(top,item->pos().y());
    }
    foreach (QGraphicsItem *item, pPicScene->items()) {
        QPointF oldpos=item->pos();
        //oldpos=QPointF(qCeil(oldpos.x()-left-1),qCeil(oldpos.y()-(top-pViewer->mapToScene(0,0).y()+1)));
        oldpos=QPointF(qCeil(oldpos.x()-left),qCeil(oldpos.y()-(top-pViewer->mapToScene(0,0).y())));
        item->setPos(oldpos);
        if(item->isSelected())movePoint=oldpos;
    }

    if(bMoveScrollBar)
    {
        //pViewer->verticalScrollBar()->setValue(0);
        //pViewer->horizontalScrollBar()->setValue(0);

        if(0<movePoint.x())
        {
            movePoint=pViewer->mapFromScene(movePoint.x(),movePoint.y());
            //pViewer->verticalScrollBar()->setValue(movePoint.y());
            pViewer->horizontalScrollBar()->setValue(movePoint.x());
        }
    }

    if(!pPicScene->items().empty())pPicScene->update();

    //qDebug()<<"adjustItemsPos="<<bMoveScrollBar;
}
void FormScenedlg::showQLayout(QLayout *layout,bool visible)
{
    for (int i = 0; i < layout->count(); ++i) {
        QLayoutItem *item = layout->itemAt(i);
        if (QWidget *widget = item->widget()) {
            visible?widget->show():widget->hide();
        } else if (QLayout *subLayout = item->layout()) {
            showQLayout(subLayout,visible);
        }
    }
}

QObject *FormScenedlg::findChildAll(const QLayout *layout,const QString &name)
{
    for (int i = 0; i < layout->count(); ++i) {
        QLayoutItem *item = layout->itemAt(i);
        if (QObject *widget = item->widget()) {
            if(widget->objectName()==name)return widget;
        } else if (QLayout *subLayout = item->layout()) {
            if(subLayout->objectName()==name)return subLayout;
            QObject *q= findChildAll(subLayout,name);
            if(q)return q;continue;
        }
    }
    return 0;
}
void FormScenedlg::onFileOpen(QString filePath,bool ){
    pPicScene->clearSelection();
    QString html = "<img src='" + filePath + "'/>";
    textEdit->setHtml (html);
    textItem = new PicTextItem();
    pPicScene->addItem(textItem);
    QList<QGraphicsItem *> items = pPicScene->items();
    if(pPicScene->items().count()>1){
        QRectF itemRect= items.at(1)->boundingRect();
        textItem->setPos( items.at(1)->scenePos().x()+itemRect.width()+20, items.at(1)->scenePos().y());
    }
    else textItem->setPos(this->pViewer->mapToScene(0,0));//edit@12-07
    textItem->setSelected(true);
    textItem->setHtml(textEdit->toHtml());
}

void FormScenedlg::reset_showTextWidthHeight()
{
    const QRectF BoundingRect=pPicScene->itemsBoundingRect();
    QLabel *labelTextWidthHeight=dynamic_cast<QLabel*>(FormScenedlg::findChildAll(tabMainWindow->layout(),"labelTextWidthHeight"));
    if(labelTextWidthHeight && 1<BoundingRect.height())
    {
        qreal bottomItem[2]={-1};//txt,img
        foreach (QGraphicsItem *item, pPicScene->items()) {
            if(item->x()<0)item->setX(0);
            if(item->y()<0)item->setY(0);
            //const int i=-1==((QGraphicsTextItem*)item)->toHtml().indexOf("img ",0,Qt::CaseInsensitive)?0:1;
            const int i=-1==((QGraphicsTextItem*)item)->toHtml().indexOf("home/plg/doc/",0,Qt::CaseInsensitive)?0:1;
            if(item->sceneBoundingRect().bottom()>bottomItem[i])
            {
                bottomItem[i]=item->sceneBoundingRect().bottom();
            }
        }
        QString newText;
        int HighlightedValue=0;
        if(bottomItem[1]+1>=bottomItem[0])
        {
            HighlightedValue=qCeil(bottomItem[1]-BoundingRect.y());
            newText=tr("[ %1行 x %2列 ]").arg(HighlightedValue).arg(qCeil(BoundingRect.width()));
        }
        else
        {
            HighlightedValue=qCeil(bottomItem[0]-BoundingRect.y()-2);
            newText=tr("[ %1行 x %2列 ]").arg(HighlightedValue).arg(qCeil(BoundingRect.width()));
        }

        const QString oldText=labelTextWidthHeight->text();
        if(32<HighlightedValue)
        {
            //edit@12-17 超出范围的高亮提示
            labelTextWidthHeight->setText(tr("<html><head/><body><p>[<span style=\"color:red;font-size:12px;\"> %1行 </span>x %2列 ]</p></body></html>")
                                          .arg(HighlightedValue).arg(qCeil(BoundingRect.width())));
        }
        else
        {
            labelTextWidthHeight->setText(newText);
        }

        if(oldText!=newText)
        {
            //QTimer::singleShot(10,this,SLOT(adjustItemsPos()));
            QTimer::singleShot(10,this,SLOT(adjustItemsPosFalse()));
        }
    }
}

void FormScenedlg::on_itemFirst_clicked()
{
    int index=-1;
    const QRectF sceneRect=pPicScene->sceneRect();
    qreal left=sceneRect.width();
    QList<QGraphicsItem *> allitems=pPicScene->items();
    for(int i =0;i<allitems.size();i++)
    {
        allitems.at(i)->clearFocus();
        allitems.at(i)->setSelected(false);
        if(left>allitems.at(i)->pos().x())
        {
            index=i;
            left=allitems.at(i)->pos().x();
        }
    }
    if(-1!=index)pPicScene->items().at(index)->setSelected(true);
    adjustItemsPos();
}

void FormScenedlg::on_itemLast_clicked()
{
    pPicScene->clearSelection();
    int index=-1;
    const QRectF sceneRect=pPicScene->sceneRect();
    qreal left=0;
    QList<QGraphicsItem *> allitems=pPicScene->items();
    for(int i =0;i<allitems.size();i++)
    {
        allitems.at(i)->clearFocus();
        allitems.at(i)->setSelected(false);
        if(left<allitems.at(i)->pos().x())
        {
            index=i;
            left=allitems.at(i)->pos().x();
        }
    }
    if(-1!=index)pPicScene->items().at(index)->setSelected(true);
    adjustItemsPos();
}

//void FormScenedlg::onSceneRectChanged(const QString &text)
//{
//    qDebug()<<"FormScenedlg::sceneRectChanged=";
//}