使用QT5打印QTableWidget和缩放表格以适应A4工作表的一侧,可以按照以下步骤进行操作:
QPrinter printer;
printer.setPageSize(QPrinter::A4);
printer.setOrientation(QPrinter::Landscape);
QPrintDialog dialog(&printer);
if (dialog.exec() == QDialog::Accepted) {
// 用户点击了打印按钮
// 在这里执行打印操作
}
QPainter painter(&printer);
painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing);
QTableWidget* tableWidget = new QTableWidget(); // 获取QTableWidget对象的指针
tableWidget->render(&painter);
QHeaderView* horizontalHeader = tableWidget->horizontalHeader();
QHeaderView* verticalHeader = tableWidget->verticalHeader();
int totalWidth = horizontalHeader->length();
int totalHeight = verticalHeader->length();
double scaleFactor = 1.0;
if (totalWidth > printer.width() || totalHeight > printer.height()) {
double widthScaleFactor = printer.width() / totalWidth;
double heightScaleFactor = printer.height() / totalHeight;
scaleFactor = qMin(widthScaleFactor, heightScaleFactor);
}
tableWidget->setFixedSize(totalWidth * scaleFactor, totalHeight * scaleFactor);
painter.scale(scaleFactor, scaleFactor);
painter.translate(0, 0);
painter.drawTable(tableWidget->geometry(), tableWidget->model());
通过以上步骤,可以使用QT5打印QTableWidget并缩放表格以适应A4工作表的一侧。这样可以确保打印的表格内容完整并符合纸张大小。
参考链接:
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