From cd30e11672b08a6fb882a9ff6950f4297c347b3d Mon Sep 17 00:00:00 2001
From: Gehad elrobey <gehadelrobey@gmail.com>
Date: Wed, 10 Jun 2015 19:31:19 +0200
Subject: [PATCH] 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                  | 67 ++++++++++++++++++++++++++++++++++--
 printer.h                    |  5 +++
 printing_templates/base.html |  3 +-
 3 files changed, 70 insertions(+), 5 deletions(-)

diff --git a/printer.cpp b/printer.cpp
index e2b88c07e..6d4e4898b 100644
--- a/printer.cpp
+++ b/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
diff --git a/printer.h b/printer.h
index 1974d46c1..75c256d91 100644
--- a/printer.h
+++ b/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:
diff --git a/printing_templates/base.html b/printing_templates/base.html
index c32bc12db..574579f90 100644
--- a/printing_templates/base.html
+++ b/printing_templates/base.html
@@ -180,8 +180,7 @@
 								</td>
 							</tr>
 						</tbody></table>
-						<div class="diveProfile">
-							<h1> Dive profile area </h1>
+						<div class="diveProfile" id="dive_{{ dive.number }}">
 						</div>
 					</div>
 					<div class="notesPart">