#include "FileDialog.h"
#include <QPainter>
namespace YSG {
    FileDialog::FileDialog(QWidget *parent) : QWidget(parent) {
        //setAttribute(Qt::WA_OpaquePaintEvent);
    }
    FileDialog::~FileDialog() {
    }
    void FileFolder::draw(int index, QPainter *painter) {
        static QImage fileFolder = QImage(":fileFolder.png");
        int x = 10 + 20 * deep;
        int y = 10 + 30 * index;
//        painter->drawImage(x, y, fileFolder);
        painter->drawImage(0, 0, fileFolder);
        painter->drawText(x + 20, y + 10, mName);
    }
    void FileDialog::paintEvent(QPaintEvent *event) {
        QWidget::paintEvent(event);
        QPainter painter(this);
        int index = 0;
        for (FileFolder *&root: roots) {
            QQueue<FileFolder *> que;
            root->deep = 0;
            que.enqueue(root);
            while (!que.empty()) {
                FileFolder *cur = que.dequeue();
                int n = cur->sons.size();
                cur->draw(index++, &painter);
                for (int i = 0; i < n; ++i) {
                    if (cur->isShowSons) {
                        cur->sons[i]->deep = cur->deep + 1;
                        que.enqueue(cur->sons[i]);
                    }
                }
            }
        }
        painter.end();
    }
}