Qt5.WebView.添加节点的测试代码

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include <QWebFrame>
#include <QWebElement>
#include <QDebug>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_pbtnOpenSVG_clicked()
{
    ui->webView->load(QUrl::fromLocalFile("D:\\DRGIS\\BIN\\PwDrawSvg\\NewSvg.svg"));
}

void PatchElement(void *_p)
{
#ifndef DEBUG_ZZ
    _asm
    {
        push eax
        mov eax,_p
        mov eax,[eax+4]
        or [eax+0xc],0x10
        pop eax
    }
#else// DEBUG_ZZ
    _asm
    {
        push eax
        mov eax,_p
        mov eax,[eax+4]
        or [eax+0x14],0x10
        pop eax
    }
#endif// DEBUG_ZZ
}

void PatchElementUn(void *_p)
{
#ifndef DEBUG_ZZ
    _asm
    {
        push eax
        mov eax,_p
        mov eax,[eax+4]
        and [eax+0xc],0xFFFFFFEF
        pop eax
    }
#else// DEBUG_ZZ
    _asm
    {
        push eax
        mov eax,_p
        mov eax,[eax+4]
        and [eax+0x14],0xFFFFFFEF
        pop eax
    }
#endif// DEBUG_ZZ
}

void MainWindow::on_pbtnAppendWebEle_clicked()
{
    QWebElement eleSvg = ui->webView->page()->currentFrame()->documentElement();
    //qDebug() << eleSvg.tagName();


    QWebElement eleFind = eleSvg.findFirst("#Term_Layer");
    if (eleFind.isNull())
        qDebug() << "eleFind is Null";
    else
        qDebug() << "eleFind is not Null";
    QString str = "<g id=\"zzz\"></g>";

　　// ZC: 下面的 PatchElement()和PatchElementUn()，暂时是在 Release中使用，Debug中不确定一定OK...
    PatchElement(&eleFind);　　// ZC: 使用QWebElement::???Inside(...)的时候，就要对 那个节点 进行Patch ! ! !
    eleFind.appendInside(str);
    PatchElementUn(&eleFind);

    PatchElement(&eleFind.parent());　　// ZC: 使用QWebElement::???Outside(...)的时候，就要对 那个节点的父节点 进行Patch ! ! !
    eleFind.appendOutside(str);
    PatchElementUn(&eleFind.parent());
}

void MainWindow::on_pbtnPrintSvgContent_clicked()
{
    qDebug() << ui->webView->page()->currentFrame()->toHtml();
}

#-------------------------------------------------
#
# Project created by QtCreator 2018-08-15T09:00:45
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets                                         webkit                                          webkitwidgets

TARGET = WebView_Test_01
TEMPLATE = app


SOURCES += main.cpp        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui