QFD2/QFD/CCanvas/CMindView.cpp

#include "CMindView.h"

#include "CRectItem.h"
#include "CLineItem.h"
#include "CTextItem.h"
#include "CMind.h"
#include "CNodeItem.h"

#include <QMenu>
#include <QContextMenuEvent>

#include <QDebug>

CMindView::CMindView(QWidget *parent) : QGraphicsView(new QGraphicsScene(), parent)
{
    setRenderHints(QPainter::Antialiasing);  // 抗锯齿
    testItems();
}

CMind *CMindView::mind() const
{
    return m_mind;
}

void CMindView::setMind(CMind *mind)
{
    m_mind = mind;
    refresh();
}

void CMindView::refresh() { }

void CMindView::setALignment(CMindView::Alignment align)
{
    m_align = align;
}

void CMindView::contextMenuEvent(QContextMenuEvent *event)
{
    QMenu *menu = new QMenu();

    QAction *selectAction = menu->addAction("全选");
    connect(selectAction, &QAction::triggered, this, &CMindView::slotSelectAllNodes);

    QAction *clearAction = menu->addAction("清空");
    connect(clearAction, &QAction::triggered, this, &CMindView::slotClearAllNodes);

    if (m_mind != nullptr && m_mind->nodeList().count() <= 0) {
        QAction *root = menu->addAction("创建根节点");
        connect(root, &QAction::triggered, this, &CMindView::slotCreateRootNode);
    }

    menu->exec(event->globalPos());

    QGraphicsView::contextMenuEvent(event);
}

void CMindView::slotCreateRootNode()
{
    qDebug() << __FUNCTION__ << __LINE__ << endl;

    CNodeItem *item = new CNodeItem(0, this);
    scene()->addItem(item->rectItem());
}

void CMindView::slotClearAllNodes()
{
    qDebug() << __FUNCTION__ << __LINE__ << endl;
}

void CMindView::slotSelectAllNodes()
{
    qDebug() << __FUNCTION__ << __LINE__ << endl;
}

void CMindView::testItems()
{
    CRectItem *r = new CRectItem(QRectF(0, 0, 100, 100));
    scene()->addItem(r);

    CLineItem *l = new CLineItem(QPointF(-100, -100), QPointF(50, 50));
    scene()->addItem(l);
    l->setFlags(QGraphicsItem::ItemIsMovable);
    l->setLineType(CLineItem::CurveToLine);

    CTextItem *t = new CTextItem("test", QPoint(0, 0));
    scene()->addItem(t);
}