Printing: render the dive profile on top of QWebView

We render the dive profile over the QWebView to the QPainter. This helps
us not to save the SVG images to disk and then render them again to the
webview.

Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>

printer.cpp

@@ -3,6 +3,8 @@
 
 #include <QtWebKitWidgets>
 #include <QPainter>
+#include <QWebElementCollection>
+#include <QWebElement>
 
 #define A4_300DPI_WIDTH 2480
 #define A4_300DPI_HIGHT 3508
@@ -20,26 +22,85 @@ Printer::Printer(QPrinter *printer)
 	done = 0;
 }
 
+void Printer::putProfileImage(QRect profilePlaceholder, QRect viewPort, QPainter *painter, struct dive *dive, QPointer<ProfileWidget2> profile)
+{
+	int x = profilePlaceholder.x() - viewPort.x();
+	int y = profilePlaceholder.y() - viewPort.y();
+	// use the placeHolder and the viewPort position to calculate the relative position of the dive profile.
+	QRect pos(x, y, profilePlaceholder.width(), profilePlaceholder.height());
+	profile->plotDive(dive, true);
+	profile->render(painter, pos);
+}
+
 void Printer::render()
 {
+	QPointer<ProfileWidget2> profile = MainWindow::instance()->graphics();
+
+	// keep original preferences
+	int profileFrameStyle = profile->frameStyle();
+	int animationOriginal = prefs.animation_speed;
+	double fontScale = profile->getFontPrintScale();
+
+	// apply printing settings to profile
+	profile->setFrameStyle(QFrame::NoFrame);
+	profile->setPrintMode(true);
+	profile->setFontPrintScale(0.6);
+	profile->setToolTipVisibile(false);
+	prefs.animation_speed = 0;
+
+	// render the Qwebview
 	QPainter painter;
 	QSize size(A4_300DPI_WIDTH, A4_300DPI_HIGHT);
+	QRect viewPort(0, 0, size.width(), size.height());
 	painter.begin(printer);
 	painter.setRenderHint(QPainter::Antialiasing);
 	painter.setRenderHint(QPainter::SmoothPixmapTransform);
 
 	webView->page()->setViewportSize(size);
-
 	int Pages = ceil(getTotalWork() / 2.0);
+
+	// get all refereces to diveprofile class in the Html template
+	QWebElementCollection collection = webView->page()->mainFrame()->findAllElements(".diveprofile");
+
+	QSize originalSize = profile->size();
+	if (collection.count() > 0) {
+		profile->resize(collection.at(0).geometry().size());
+	}
+
+	int elemNo = 0;
 	for (int i = 0; i < Pages; i++) {
+		// render the base Html template
 		webView->page()->mainFrame()->render(&painter, QWebFrame::ContentsLayer);
-		webView->page()->mainFrame()->scroll(0, A4_300DPI_HIGHT);
+
-		//rendering progress is 4/5 of total work
+		// render all the dive profiles in the current page
+		while (elemNo < collection.count() && collection.at(elemNo).geometry().y() < viewPort.y() + viewPort.height()) {
+			// dive id field should be dive_{{dive_no}} se we remove the first 5 characters
+			int diveNo = collection.at(elemNo).attribute("id").remove(0, 5).toInt(0, 10);
+			putProfileImage(collection.at(elemNo).geometry(), viewPort, &painter, get_dive(diveNo - 1), profile);
+			elemNo++;
+		}
+
+		// scroll the webview to the next page
+		webView->page()->mainFrame()->scroll(0, size.height());
+		viewPort.adjust(0, size.height(), 0, size.height());
+
+		// rendering progress is 4/5 of total work
 		emit(progessUpdated((i * 80.0 / Pages) + done));
 		if (i < Pages - 1)
 			printer->newPage();
 	}
 	painter.end();
+
+	// return profle settings
+	profile->setFrameStyle(profileFrameStyle);
+	profile->setPrintMode(false);
+	profile->setFontPrintScale(fontScale);
+	profile->setToolTipVisibile(true);
+	profile->resize(originalSize);
+	prefs.animation_speed = animationOriginal;
+
+	//replot the dive after returning the settings
+	profile->plotDive(0, true);
 }
 
 //value: ranges from 0 : 100 and shows the progress of the templating engine

printer.h

@@ -3,6 +3,10 @@
 
 #include <QPrinter>
 #include <QWebView>
+#include <QRect>
+#include <QPainter>
+
+#include "profile/profilewidget2.h"
 
 class Printer : public QObject {
 	Q_OBJECT
@@ -11,6 +15,7 @@ private:
 	QPrinter *printer;
 	QWebView *webView;
 	void render();
+	void putProfileImage(QRect box, QRect viewPort, QPainter *painter, struct dive *dive, QPointer<ProfileWidget2> profile);
 	int done;
 
 private slots:

printing_templates/base.html

@@ -180,8 +180,7 @@
 								</td>
 							</tr>
 						</tbody></table>
-						<div class="diveProfile">
+						<div class="diveProfile" id="dive_{{ dive.number }}">
-							<h1> Dive profile area </h1>
 						</div>
 					</div>
 					<div class="notesPart">