chartdirector 中文乱码问题

[loveseunghun]

QT + ChartDirector + windows
窗口的标题，和按钮的名字可以正常显示。 chartdirector的三个标题都是乱码！

 main.cpp
int main(int argc, char *argv[])
{
	QApplication app(argc, argv);
	QTextCodec::setCodecForCStrings(QTextCodec::codecForName("GB2312"));
	//QTranslator translator;
    //translator.load("linelossdialog_zh.qm");
    //app.installTranslator(&translator);
    LineLossDialog dialog;
    dialog.show();
    return app.exec();
}

 LineLossDialog.cpp
LineLossDialog::LineLossDialog(QWidget *parent) :  QDialog(parent)
{
    setFixedSize(600, 400);
	QString str("台区线损率");
    setWindowTitle(str);
	QPushButton *pointerPB = new QPushButton(QIcon(":/pointer.png"), "中文", this);
    pointerPB->setGeometry(0, 0, 112, 28);
    m_ChartViewer = new QChartViewer(this);
    m_ChartViewer->setGeometry(2, 28, 600, 300);
	drawChart(m_ChartViewer);
}
void LineLossDialog::drawChart(QChartViewer *viewer)
{
	QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
	db.setHostName("aa");
	db.setDatabaseName("dd");
	db.setUserName("dd");
	db.setPassword("cc");
	db.setPort(1521);
	if(!db.open())
		return ;
	QSqlQuery query(db);
	query.exec("select Rate from AMI_TransAreaLineLoss where areaID=1 and Day>=to_date('2010-01-01','yyyy-MM-dd') and Day<to_date('2010-02-01','yyyy-MM-dd') order by day asc");
	double y[31];
	int count = 0;
	while(query.next())
	{
		y[count] = query.value(0).toDouble() * 100;
		count++;
	}
	double data1Start = Chart::chartTime(2010, 1, 1);
	double data1End = Chart::chartTime(2010, 1, 31);

	XYChart *c = new XYChart(600, 400);
	c->setDefaultFonts("simsun.ttc", "simsun.ttc", "simsun.ttc", "simsun.ttc"); 
    c->setBackground(c->linearGradientColor(0, 0, 0, 100, 0x99ccff, 0xffffff),
        0x888888);
    c->setRoundedFrame();
    c->setDropShadow();
	c->addTitle("台区线损率曲线", "simsun.ttc", 18)->setMargin(0, 0, 16, 0);

    PlotArea *plotArea = c->setPlotArea(60, 60, 500, 240, -1, -1, Chart::Transparent,
        c->dashLineColor(0x444444, 0x000101), -1);
    LegendBox *legendBox = c->addLegend(plotArea->getLeftX() + plotArea->getWidth() /
        2, 45, false, "simsun.ttc", 10);
    legendBox->setAlignment(Chart::TopCenter);
    legendBox->setBackground(Chart::Transparent, Chart::Transparent);
    c->yAxis()->setTickDensity(30);
    c->xAxis()->setTickDensity(75);
    c->xAxis()->setColors(Chart::Transparent);
    c->yAxis()->setColors(Chart::Transparent);
    c->xAxis()->setMargin(15, 15);
    c->xAxis()->setLabelStyle("simsun.ttc", 8);
    c->yAxis()->setLabelStyle("simsun.ttc", 8);
	c->yAxis()->setTitle("中文", "simsun.ttc", 10);
    LineLayer *layer0 = c->addLineLayer();
    layer0->addDataSet(DoubleArray(y, sizeof(y)/sizeof(y[0])),
		0xff0000, tr("ChartLegend1").toUtf8().constData())->setDataSymbol(Chart::ChartDir_CustomSymbol, 11);
    layer0->setXData(data1Start, data1End);
    layer0->setLineWidth(3);
    delete viewer->getChart();
    viewer->setChart(c);
	updateImageMap(viewer);
}

[loveseunghun]

两个cpp都在vs2010中保存为UTF-8代签名的 编码格式

[高性能架构探索]

在你的main函数最前面加

    QTextCodec::setCodecForTr(QTextCodec::codecForName("GB2312"));
    QTextCodec::setCodecForLocale(QTextCodec::codecForName("GB2312"));
    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("GB2312"));

[loveseunghun]

[Quote=引用 2 楼 namelij 的回复:]
在你的main函数最前面加

C/C++ code


QTextCodec::setCodecForTr(QTextCodec::codecForName("GB2312"));
QTextCodec::setCodecForLocale(QTextCodec::codecForName("GB2312"));
QTextCodec::setCodecFor……
[/Quote]
我都试过了，对chartdirector内的不管用。

[loveseunghun]

自己解决！结贴！
附方法：
LineLossDialog.cpp 以GB2312编码保存。

 c->addTitle("台区线损率曲线", "simsun.ttc", 18)->setMargin(0, 0, 16, 0);

改为：

c->addTitle(QTextCodec::codecForName("UTF-8")->fromUnicode("线损率曲线").constData(), "simsun.ttc", 18)->setMargin(0, 0, 16, 0);

[loveseunghun]

上面那个错了： 改为：
c->addTitle(QTextCodec::codecForName("UTF-8")->fromUnicode("线损率曲线").constData(), "simsun.ttc", 18)->setMargin(0, 0, 16, 0);