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554e64c43f
Make page size and orientation customizable. The user can select any page size and orientation and then the rendering resolution will be calculated based on the selected preferences and the printer DPI. The HTML templates must be responsive, also the font-size must be based on the viewport width so that we don't lose quality. Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com> Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
124 lines
4 KiB
C++
124 lines
4 KiB
C++
#include "printer.h"
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#include "templatelayout.h"
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#include <QtWebKitWidgets>
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#include <QPainter>
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#include <QWebElementCollection>
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#include <QWebElement>
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Printer::Printer(QPrinter *printer, print_options *printOptions)
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{
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this->printer = printer;
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this->printOptions = printOptions;
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done = 0;
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}
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void Printer::putProfileImage(QRect profilePlaceholder, QRect viewPort, QPainter *painter, struct dive *dive, QPointer<ProfileWidget2> profile)
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{
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int x = profilePlaceholder.x() - viewPort.x();
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int y = profilePlaceholder.y() - viewPort.y();
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// use the placeHolder and the viewPort position to calculate the relative position of the dive profile.
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QRect pos(x, y, profilePlaceholder.width(), profilePlaceholder.height());
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profile->plotDive(dive, true);
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profile->render(painter, pos);
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}
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void Printer::render()
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{
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QPointer<ProfileWidget2> profile = MainWindow::instance()->graphics();
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// keep original preferences
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int profileFrameStyle = profile->frameStyle();
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int animationOriginal = prefs.animation_speed;
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double fontScale = profile->getFontPrintScale();
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// apply printing settings to profile
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profile->setFrameStyle(QFrame::NoFrame);
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profile->setPrintMode(true, !printOptions->color_selected);
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profile->setFontPrintScale(0.6);
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profile->setToolTipVisibile(false);
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prefs.animation_speed = 0;
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// render the Qwebview
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QPainter painter;
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QRect viewPort(0, 0, pageSize.width(), pageSize.height());
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painter.begin(printer);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setRenderHint(QPainter::SmoothPixmapTransform);
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int divesPerPage;
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switch (printOptions->p_template) {
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case print_options::ONE_DIVE:
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divesPerPage = 1;
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break;
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case print_options::TWO_DIVE:
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divesPerPage = 2;
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break;
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}
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int Pages = ceil(getTotalWork() / (float)divesPerPage);
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// get all refereces to diveprofile class in the Html template
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QWebElementCollection collection = webView->page()->mainFrame()->findAllElements(".diveprofile");
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QSize originalSize = profile->size();
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if (collection.count() > 0) {
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profile->resize(collection.at(0).geometry().size());
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}
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int elemNo = 0;
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for (int i = 0; i < Pages; i++) {
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// render the base Html template
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webView->page()->mainFrame()->render(&painter, QWebFrame::ContentsLayer);
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// render all the dive profiles in the current page
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while (elemNo < collection.count() && collection.at(elemNo).geometry().y() < viewPort.y() + viewPort.height()) {
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// dive id field should be dive_{{dive_no}} se we remove the first 5 characters
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int diveNo = collection.at(elemNo).attribute("id").remove(0, 5).toInt(0, 10);
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putProfileImage(collection.at(elemNo).geometry(), viewPort, &painter, get_dive(diveNo - 1), profile);
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elemNo++;
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}
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// scroll the webview to the next page
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webView->page()->mainFrame()->scroll(0, pageSize.height());
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viewPort.adjust(0, pageSize.height(), 0, pageSize.height());
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// rendering progress is 4/5 of total work
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emit(progessUpdated((i * 80.0 / Pages) + done));
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if (i < Pages - 1)
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printer->newPage();
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}
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painter.end();
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// return profle settings
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profile->setFrameStyle(profileFrameStyle);
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profile->setPrintMode(false);
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profile->setFontPrintScale(fontScale);
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profile->setToolTipVisibile(true);
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profile->resize(originalSize);
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prefs.animation_speed = animationOriginal;
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//replot the dive after returning the settings
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profile->plotDive(0, true);
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}
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//value: ranges from 0 : 100 and shows the progress of the templating engine
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void Printer::templateProgessUpdated(int value)
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{
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done = value / 5; //template progess if 1/5 of total work
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emit progessUpdated(done);
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}
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void Printer::print()
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{
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TemplateLayout t(printOptions);
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webView = new QWebView();
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connect(&t, SIGNAL(progressUpdated(int)), this, SLOT(templateProgessUpdated(int)));
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dpi = printer->resolution();
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//rendering resolution = selected paper size in inchs * printer dpi
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pageSize.setHeight(printer->pageLayout().paintRect(QPageLayout::Inch).height() * dpi);
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pageSize.setWidth(printer->pageLayout().paintRect(QPageLayout::Inch).width() * dpi);
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webView->page()->setViewportSize(pageSize);
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webView->setHtml(t.generate());
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render();
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}
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