subsurface/desktop-widgets/printer.h
Berthold Stoeger 0cbb448740 cleanup: make templateOptions and printOptions reference types
These two structs describe options used during printing.
They are passed through numerous classes as pointer. In this
case, reference semantics are preferred, as references:
 - can never be null
 - can not change during their lifetime
This not only helps the compiler, as it can optimize away null
checks, but also your fellow coder. Moreover, it prevents
unintentional creation of uninitialized references: one can't
create an instance of a class without initializing a reference
member. It does not prevent references from going dangling.
However, pointers have the same disadvantage.

Contains a few whitespace cleanups.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-12-17 13:03:56 -08:00

49 lines
1,001 B
C++

// SPDX-License-Identifier: GPL-2.0
#ifndef PRINTER_H
#define PRINTER_H
#include <QPrinter>
#include <QWebView>
#include <QRect>
#include <QPainter>
#include "printoptions.h"
#include "templateedit.h"
class Printer : public QObject {
Q_OBJECT
public:
enum PrintMode {
PRINT,
PREVIEW
};
private:
QPaintDevice *paintDevice;
QWebView *webView;
const print_options &printOptions;
const template_options &templateOptions;
QSize pageSize;
PrintMode printMode;
int done;
int dpi;
void render(int Pages);
void flowRender();
void putProfileImage(QRect box, QRect viewPort, QPainter *painter, struct dive *dive, QPointer<ProfileWidget2> profile);
private slots:
void templateProgessUpdated(int value);
public:
Printer(QPaintDevice *paintDevice, const print_options &printOptions, const template_options &templateOptions, PrintMode printMode);
~Printer();
void print();
void previewOnePage();
QString exportHtml();
signals:
void progessUpdated(int value);
};
#endif //PRINTER_H