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When pressing Print or Preview from the PrintDialog, we need to first check if there are printers installed. If not we abort and show an error message. This is needed because if no printers are installed, things like the reported page height could be zero and the profile and table print code in PrintLayout will break. Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
#include "printdialog.h"
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#include "printoptions.h"
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#include "printlayout.h"
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#include "mainwindow.h"
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#include <QDebug>
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#include <QPushButton>
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#include <QProgressBar>
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QPrintPreviewDialog>
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#include <QPrintDialog>
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#include <QShortcut>
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#include <QPrinterInfo>
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#include <QMessageBox>
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PrintDialog::PrintDialog(QWidget *parent, Qt::WindowFlags f) : QDialog(parent, f)
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{
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// options template (are we storing these in the settings?)
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struct options tempOptions = { options::PRETTY, 1, 2, false };
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printOptions = tempOptions;
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// create a print layout and pass the printer and options
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printLayout = new PrintLayout(this, &printer, &printOptions);
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// create a print options object and pass our options struct
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optionsWidget = new PrintOptions(this, &printOptions);
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QVBoxLayout *layout = new QVBoxLayout(this);
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setLayout(layout);
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layout->addWidget(optionsWidget);
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progressBar = new QProgressBar();
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connect(printLayout, SIGNAL(signalProgress(int)), progressBar, SLOT(setValue(int)));
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progressBar->setMinimum(0);
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progressBar->setMaximum(100);
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progressBar->setValue(0);
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progressBar->setTextVisible(false);
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layout->addWidget(progressBar);
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QHBoxLayout *hLayout = new QHBoxLayout();
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layout->addLayout(hLayout);
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QPushButton *printButton = new QPushButton(tr("P&rint"));
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connect(printButton, SIGNAL(clicked(bool)), this, SLOT(printClicked()));
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QPushButton *previewButton = new QPushButton(tr("&Preview"));
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connect(previewButton, SIGNAL(clicked(bool)), this, SLOT(previewClicked()));
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QDialogButtonBox *buttonBox = new QDialogButtonBox;
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buttonBox->addButton(QDialogButtonBox::Cancel);
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buttonBox->addButton(printButton, QDialogButtonBox::AcceptRole);
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buttonBox->addButton(previewButton, QDialogButtonBox::ActionRole);
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connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
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hLayout->addWidget(buttonBox);
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setFixedSize(550, 400);
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setWindowTitle(tr("Print"));
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setWindowIcon(QIcon(":subsurface-icon"));
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QShortcut *close = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_W), this);
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connect(close, SIGNAL(activated()), this, SLOT(close()));
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QShortcut *quit = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q), this);
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connect(quit, SIGNAL(activated()), parent, SLOT(close()));
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}
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bool PrintDialog::checkForAvailablePrinters(void)
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{
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QList<QPrinterInfo> list = QPrinterInfo::availablePrinters();
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if (!list.length()) {
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QMessageBox msgBox;
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msgBox.setIcon(QMessageBox::Critical);
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msgBox.setText(tr("Subsurface cannot find installed printers on this system!"));
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msgBox.setWindowIcon(QIcon(":subsurface-icon"));
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msgBox.exec();
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return false;
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}
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return true;
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}
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void PrintDialog::previewClicked(void)
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{
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if (!checkForAvailablePrinters())
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return;
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QPrintPreviewDialog previewDialog(&printer, this);
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connect(&previewDialog, SIGNAL(paintRequested(QPrinter *)), this, SLOT(onPaintRequested(QPrinter *)));
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previewDialog.exec();
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}
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void PrintDialog::printClicked(void)
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{
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if (!checkForAvailablePrinters())
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return;
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QPrintDialog printDialog(&printer, this);
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if (printDialog.exec() == QDialog::Accepted){
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printLayout->print();
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close();
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}
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}
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void PrintDialog::onPaintRequested(QPrinter *printerPtr)
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{
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printLayout->print();
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}
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