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Printing: change QPrinter to parent class QPaintDevice

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Use general class QPaintDevice to be used for printing and
previewing instances, printing uses a QPrinter object while
previewing uses a QPixmap instance. We use static_cast to use the
needed object.

Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
This commit is contained in:
Gehad elrobey 2015-07-10 20:34:25 +02:00 • committed by Lubomir I. Ivanov
parent 4e1a5d954b
commit 142fd950c8
2 changed files with 15 additions and 13 deletions
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24
printer.cpp
View file

@ -6,9 +6,9 @@
#include <QWebElementCollection> #include <QWebElementCollection>
#include <QWebElement> #include <QWebElement>
Printer::Printer(QPrinter *printer, print_options *printOptions, template_options *templateOptions) Printer::Printer(QPaintDevice *paintDevice, print_options *printOptions, template_options *templateOptions)
{ {
this->printer = printer; this->paintDevice = paintDevice;
this->printOptions = printOptions; this->printOptions = printOptions;
this->templateOptions = templateOptions; this->templateOptions = templateOptions;
dpi = 0; dpi = 0;
@ -49,7 +49,7 @@ void Printer::render(int Pages = 0)
// render the Qwebview // render the Qwebview
QPainter painter; QPainter painter;
QRect viewPort(0, 0, pageSize.width(), pageSize.height()); QRect viewPort(0, 0, pageSize.width(), pageSize.height());
painter.begin(printer); painter.begin(paintDevice);
painter.setRenderHint(QPainter::Antialiasing); painter.setRenderHint(QPainter::Antialiasing);
painter.setRenderHint(QPainter::SmoothPixmapTransform); painter.setRenderHint(QPainter::SmoothPixmapTransform);
@ -81,7 +81,7 @@ void Printer::render(int Pages = 0)
// rendering progress is 4/5 of total work // rendering progress is 4/5 of total work
emit(progessUpdated((i * 80.0 / Pages) + done)); emit(progessUpdated((i * 80.0 / Pages) + done));
if (i < Pages - 1) if (i < Pages - 1)
printer->newPage(); static_cast<QPrinter*>(paintDevice)->newPage();
} }
painter.end(); painter.end();
@ -106,19 +106,21 @@ void Printer::templateProgessUpdated(int value)
void Printer::print() void Printer::print()
{ {
QPrinter *printerPtr;
printerPtr = static_cast<QPrinter*>(paintDevice);
TemplateLayout t(printOptions, templateOptions); TemplateLayout t(printOptions, templateOptions);
connect(&t, SIGNAL(progressUpdated(int)), this, SLOT(templateProgessUpdated(int))); connect(&t, SIGNAL(progressUpdated(int)), this, SLOT(templateProgessUpdated(int)));
dpi = printerPtr->resolution();
dpi = printer->resolution();
//rendering resolution = selected paper size in inchs * printer dpi //rendering resolution = selected paper size in inchs * printer dpi
pageSize.setHeight(printer->pageLayout().paintRect(QPageLayout::Inch).height() * dpi); pageSize.setHeight(printerPtr->pageLayout().paintRect(QPageLayout::Inch).height() * dpi);
pageSize.setWidth(printer->pageLayout().paintRect(QPageLayout::Inch).width() * dpi); pageSize.setWidth(printerPtr->pageLayout().paintRect(QPageLayout::Inch).width() * dpi);
webView->page()->setViewportSize(pageSize); webView->page()->setViewportSize(pageSize);
webView->setHtml(t.generate()); webView->setHtml(t.generate());
if (printOptions->color_selected && printer->colorMode()) { if (printOptions->color_selected && printerPtr->colorMode()) {
printer->setColorMode(QPrinter::Color); printerPtr->setColorMode(QPrinter::Color);
} else { } else {
printer->setColorMode(QPrinter::GrayScale); printerPtr->setColorMode(QPrinter::GrayScale);
} }
// apply user settings // apply user settings
int divesPerPage; int divesPerPage;

4
printer.h
View file

@ -14,7 +14,7 @@ class Printer : public QObject {
Q_OBJECT Q_OBJECT
private: private:
QPrinter *printer; QPaintDevice *paintDevice;
QWebView *webView; QWebView *webView;
print_options *printOptions; print_options *printOptions;
template_options *templateOptions; template_options *templateOptions;
@ -28,7 +28,7 @@ private slots:
void templateProgessUpdated(int value); void templateProgessUpdated(int value);
public: public:
Printer(QPrinter *printer, print_options *printOptions, template_options *templateOptions); Printer(QPaintDevice *paintDevice, print_options *printOptions, template_options *templateOptions);
~Printer(); ~Printer();
void print(); void print();