kateprinter.cpp

/*
    SPDX-FileCopyrightText: 2002-2010 Anders Lund <anders@alweb.dk>
 
    Rewritten based on code of:
    SPDX-FileCopyrightText: 2002 Michael Goffioul <kdeprint@swing.be>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
*/
 
#include "kateprinter.h"
 
#include "kateconfig.h"
#include "katedocument.h"
#include "kateglobal.h"
#include "kateview.h"
 
#include <KConfigGroup>
#include <KSharedConfig>
 
#include <QApplication>
#include <QMarginsF>
#include <QPageLayout>
#include <QPrintDialog>
#include <QPrintPreviewDialog>
#include <QPrinter>
 
#include "printconfigwidgets.h"
#include "printpainter.h"
 
using namespace KatePrinter;
 
// BEGIN KatePrinterPrivate
class KatePrinterPrivate : public QObject
{
public:
    KatePrinterPrivate(KTextEditor::DocumentPrivate *doc, KTextEditor::ViewPrivate *view);
 
    bool print(QPrinter *printer, QWidget *parentWidget);
    void setColorScheme(const QString &scheme);
 
public:
    void paint(QPrinter *printer);
 
private:
    KTextEditor::ViewPrivate *m_view;
    KTextEditor::DocumentPrivate *m_doc;
    PrintPainter m_painter;
    static void readSettings(QPrinter *printer);
    static void writeSettings(QPrinter *printer);
};
 
KatePrinterPrivate::KatePrinterPrivate(KTextEditor::DocumentPrivate *doc, KTextEditor::ViewPrivate *view)
    : QObject()
    , m_view(view)
    , m_doc(doc)
    , m_painter(m_doc, m_view)
{
}
 
bool KatePrinterPrivate::print(QPrinter *printer, QWidget *parentWidget)
{
    // docname is now always there, including the right Untitled name
    printer->setDocName(m_doc->documentName());
 
    KatePrintTextSettings *kpts = new KatePrintTextSettings;
    KatePrintHeaderFooter *kphf = new KatePrintHeaderFooter;
    KatePrintLayout *kpl = new KatePrintLayout;
 
    QList<QWidget *> tabs;
    tabs << kpts;
    tabs << kphf;
    tabs << kpl;
 
    readSettings(printer);
 
    QPointer<QPrintDialog> printDialog(new QPrintDialog(printer, parentWidget));
    printDialog->setOptionTabs(tabs);
 
    if (m_view && m_view->selection()) {
        printer->setPrintRange(QPrinter::Selection);
        printDialog->setOption(QAbstractPrintDialog::PrintSelection, true);
    }
 
    printDialog->setOption(QAbstractPrintDialog::PrintPageRange, true);
 
    const int dlgCode = printDialog->exec();
    if (dlgCode != QDialog::Accepted || !printDialog) {
        delete printDialog;
        return false;
    }
 
    writeSettings(printer);
 
    // configure the painter
    m_painter.setPrintGuide(kpts->printGuide());
    m_painter.setPrintLineNumbers(kpts->printLineNumbers());
    m_painter.setDontPrintFoldedCode(kpts->dontPrintFoldedCode());
 
    m_painter.setColorScheme(kpl->colorScheme());
    m_painter.setTextFont(kpl->textFont());
    m_painter.setUseBackground(kpl->useBackground());
    m_painter.setUseBox(kpl->useBox());
    m_painter.setBoxMargin(kpl->boxMargin());
    m_painter.setBoxWidth(kpl->boxWidth());
    m_painter.setBoxColor(kpl->boxColor());
 
    m_painter.setHeadersFont(kphf->font());
 
    m_painter.setUseHeader(kphf->useHeader());
    m_painter.setHeaderBackground(kphf->headerBackground());
    m_painter.setHeaderForeground(kphf->headerForeground());
    m_painter.setUseHeaderBackground(kphf->useHeaderBackground());
    m_painter.setHeaderFormat(kphf->headerFormat());
 
    m_painter.setUseFooter(kphf->useFooter());
    m_painter.setFooterBackground(kphf->footerBackground());
    m_painter.setFooterForeground(kphf->footerForeground());
    m_painter.setUseFooterBackground(kphf->useFooterBackground());
    m_painter.setFooterFormat(kphf->footerFormat());
 
    delete printDialog;
    m_painter.paint(printer);
 
    return true;
}
 
void KatePrinterPrivate::paint(QPrinter *printer)
{
    m_painter.paint(printer);
}
 
void KatePrinterPrivate::setColorScheme(const QString &scheme)
{
    m_painter.setColorScheme(scheme);
}
 
void KatePrinterPrivate::writeSettings(QPrinter *printer)
{
    KSharedConfigPtr config = KTextEditor::EditorPrivate::config();
    KConfigGroup group(config, QStringLiteral("Kate Print Settings"));
    KConfigGroup margins(&group, QStringLiteral("Margins"));
 
    QMarginsF m = printer->pageLayout().margins(QPageLayout::Millimeter);
    margins.writeEntry("left", m.left());
    margins.writeEntry("top", m.top());
    margins.writeEntry("right", m.right());
    margins.writeEntry("bottom", m.bottom());
}
 
void KatePrinterPrivate::readSettings(QPrinter *printer)
{
    KSharedConfigPtr config = KTextEditor::EditorPrivate::config();
    KConfigGroup group(config, QStringLiteral("Kate Print Settings"));
    KConfigGroup margins(&group, QStringLiteral("Margins"));
 
    qreal left{};
    qreal right{};
    qreal top{};
    qreal bottom{};
    left = margins.readEntry("left", left);
    top = margins.readEntry("top", top);
    right = margins.readEntry("right", right);
    bottom = margins.readEntry("bottom", bottom);
    QMarginsF m = QMarginsF(left, top, right, bottom);
    printer->setPageMargins(m, QPageLayout::Millimeter);
}
 
// END KatePrinterPrivate
 
// BEGIN KatePrinter
 
bool KatePrinter::print(KTextEditor::DocumentPrivate *doc, KTextEditor::ViewPrivate *view)
{
    QPrinter printer;
    KatePrinterPrivate p(doc, view);
    return p.print(&printer, view ? view : QApplication::activeWindow());
}
 
bool KatePrinter::printPreview(KTextEditor::DocumentPrivate *doc, KTextEditor::ViewPrivate *view)
{
    QPrinter printer;
    KatePrinterPrivate p(doc, view);
    p.setColorScheme(QStringLiteral("Printing"));
 
    // ensure proper parent & sizing
    auto dialogParent = view ? view : QApplication::activeWindow();
    QPrintPreviewDialog preview(&printer, dialogParent);
    if (dialogParent && dialogParent->window()) {
        preview.resize(dialogParent->window()->size() * 0.75);
    }
 
    QObject::connect(&preview, &QPrintPreviewDialog::paintRequested, &p, &KatePrinterPrivate::paint);
    return preview.exec();
}
 
// END KatePrinter