printing: don't access displayed_dive in printing code

To phase out this global variable, avoid access of displayed_dive
in the printing code. This is used when printing a plan. Instead,
when in plan-mode, pass the planned dive to the printing code
as a single dive to be printed.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

desktop-widgets/mainwindow.cpp

@@ -548,8 +548,10 @@ void MainWindow::updateLastUsedDir(const QString &dir)
 void MainWindow::on_actionPrint_triggered()
 {
 #ifndef NO_PRINTING
-	bool in_planner = inPlanner();
-	PrintDialog dlg(in_planner, this);
+	// When in planner, only print the planned dive.
+	dive *singleDive = appState == ApplicationState::PlanDive ? &displayed_dive
+								  : nullptr;
+	PrintDialog dlg(singleDive, this);
 
 	dlg.exec();
 #endif

desktop-widgets/printdialog.cpp

@@ -19,9 +19,9 @@
 
 template_options::color_palette_struct ssrf_colors, almond_colors, blueshades_colors, custom_colors;
 
-PrintDialog::PrintDialog(bool inPlanner, QWidget *parent) :
+PrintDialog::PrintDialog(dive *singleDive, QWidget *parent) :
 	QDialog(parent, QFlag(0)),
-	inPlanner(inPlanner),
+	singleDive(singleDive),
 	printer(NULL),
 	qprinter(NULL)
 {
@@ -179,7 +179,7 @@ void PrintDialog::createPrinterObj()
 		qprinter = new QPrinter;
 		qprinter->setResolution(printOptions.resolution);
 		qprinter->setOrientation((QPrinter::Orientation)printOptions.landscape);
-		printer = new Printer(qprinter, printOptions, templateOptions, Printer::PRINT, inPlanner);
+		printer = new Printer(qprinter, printOptions, templateOptions, Printer::PRINT, singleDive);
 	}
 }
 

desktop-widgets/printdialog.h

@@ -7,6 +7,7 @@
 #include "templateedit.h"
 #include "printoptions.h"
 
+struct dive;
 class Printer;
 class QPrinter;
 class QProgressBar;
@@ -18,11 +19,12 @@ class PrintDialog : public QDialog {
 	Q_OBJECT
 
 public:
-	explicit PrintDialog(bool inPlanner, QWidget *parent = 0);
+	// If singleDive is non-null, print only that single dive
+	explicit PrintDialog(dive *singleDive, QWidget *parent = 0);
 	~PrintDialog();
 
 private:
-	bool inPlanner;
+	dive *singleDive;
 	PrintOptions *optionsWidget;
 	QProgressBar *progressBar;
 	Printer *printer;

desktop-widgets/printer.cpp

@@ -2,6 +2,7 @@
 #include "printer.h"
 #include "templatelayout.h"
 #include "core/dive.h" // for get_dive_by_uniq_id()
+#include "core/selection.h"
 #include "core/statistics.h"
 #include "core/qthelper.h"
 #include "profile-widget/profilescene.h"
@@ -14,13 +15,13 @@
 #include <QWebElementCollection>
 #include <QWebElement>
 
-Printer::Printer(QPaintDevice *paintDevice, const print_options &printOptions, const template_options &templateOptions, PrintMode printMode, bool inPlanner) :
+Printer::Printer(QPaintDevice *paintDevice, const print_options &printOptions, const template_options &templateOptions, PrintMode printMode, dive *singleDive) :
 	paintDevice(paintDevice),
 	webView(new QWebView),
 	printOptions(printOptions),
 	templateOptions(templateOptions),
 	printMode(printMode),
-	inPlanner(inPlanner),
+	singleDive(singleDive),
 	done(0)
 {
 }
@@ -151,6 +152,22 @@ void Printer::templateProgessUpdated(int value)
 	emit progessUpdated(done);
 }
 
+std::vector<dive *> Printer::getDives() const
+{
+	if (singleDive) {
+		return { singleDive };
+	} else if (printOptions.print_selected) {
+		return getDiveSelection();
+	} else {
+		std::vector<dive *> res;
+		int i;
+		struct dive *dive;
+		for_each_dive (i, dive)
+			res.push_back(dive);
+		return res;
+	}
+}
+
 QString Printer::exportHtml()
 {
 	TemplateLayout t(printOptions, templateOptions);
@@ -158,7 +175,7 @@ QString Printer::exportHtml()
 	QString html;
 
 	if (printOptions.type == print_options::DIVELIST)
-		html = t.generate(inPlanner);
+		html = t.generate(getDives());
 	else if (printOptions.type == print_options::STATISTICS )
 		html = t.generateStatistics();
 
@@ -188,7 +205,7 @@ void Printer::print()
 	// export border width with at least 1 pixel
 	// templateOptions.borderwidth = std::max(1, pageSize.width() / 1000);
 	if (printOptions.type == print_options::DIVELIST)
-		webView->setHtml(t.generate(inPlanner));
+		webView->setHtml(t.generate(getDives()));
 	else if (printOptions.type == print_options::STATISTICS )
 		webView->setHtml(t.generateStatistics());
 	if (printOptions.color_selected && printerPtr->colorMode())
@@ -222,7 +239,7 @@ void Printer::previewOnePage()
 		// initialize the border settings
 		// templateOptions.border_width = std::max(1, pageSize.width() / 1000);
 		if (printOptions.type == print_options::DIVELIST)
-			webView->setHtml(t.generate(inPlanner));
+			webView->setHtml(t.generate(getDives()));
 		else if (printOptions.type == print_options::STATISTICS )
 			webView->setHtml(t.generateStatistics());
 		bool ok;

desktop-widgets/printer.h

@@ -5,6 +5,7 @@
 #include "printoptions.h"
 #include "templateedit.h"
 
+struct dive;
 class ProfileScene;
 class QPainter;
 class QPaintDevice;
@@ -27,10 +28,11 @@ private:
 	const template_options &templateOptions;
 	QSize pageSize;
 	PrintMode printMode;
-	bool inPlanner;
+	struct dive *singleDive;
 	int done;
 	void render(int Pages);
 	void flowRender();
+	std::vector<dive *> getDives() const;
 	void putProfileImage(const QRect &box, const QRect &viewPort, QPainter *painter,
 			     struct dive *dive, ProfileScene *profile);
 
@@ -38,7 +40,9 @@ private slots:
 	void templateProgessUpdated(int value);
 
 public:
-	Printer(QPaintDevice *paintDevice, const print_options &printOptions, const template_options &templateOptions, PrintMode printMode, bool inPlanner);
+	// If singleDive is non-null, then only print this particular dive.
+	Printer(QPaintDevice *paintDevice, const print_options &printOptions, const template_options &templateOptions,
+		PrintMode printMode, dive *singleDive);
 	~Printer();
 	void print();
 	void previewOnePage();

desktop-widgets/templateedit.cpp

@@ -59,7 +59,7 @@ void TemplateEdit::updatePreview()
 	int height = ui->label->height();
 	QPixmap map(width * 2, height * 2);
 	map.fill(QColor::fromRgb(255, 255, 255));
-	Printer printer(&map, printOptions, newTemplateOptions, Printer::PREVIEW, false);
+	Printer printer(&map, printOptions, newTemplateOptions, Printer::PREVIEW, nullptr);
 	printer.previewOnePage();
 	ui->label->setPixmap(map.scaled(width, height, Qt::IgnoreAspectRatio));
 

desktop-widgets/templatelayout.cpp

@@ -95,24 +95,14 @@ TemplateLayout::TemplateLayout(const print_options &printOptions, const template
 {
 }
 
-QString TemplateLayout::generate(bool in_planner)
+QString TemplateLayout::generate(const std::vector<dive *> &dives)
 {
 	QString htmlContent;
 
 	State state;
 
-	if (in_planner) {
-		state.dives.append(&displayed_dive);
-	} else {
-		int i;
-		struct dive *dive;
-		for_each_dive (i, dive) {
-			//TODO check for exporting selected dives only
-			if (!dive->selected && printOptions.print_selected)
-				continue;
-			state.dives.append(dive);
-		}
-	}
+	for (dive *d: dives)
+		state.dives.append(d);
 
 	QString templateContents = readTemplate(printOptions.p_template);
 	numDives = state.dives.size();

desktop-widgets/templatelayout.h

@@ -27,7 +27,7 @@ class TemplateLayout : public QObject {
 	Q_OBJECT
 public:
 	TemplateLayout(const print_options &printOptions, const template_options &templateOptions);
-	QString generate(bool in_planner);
+	QString generate(const std::vector<dive *> &dives);
 	QString generateStatistics();
 	static QString readTemplate(QString template_name);
 	static void writeTemplate(QString template_name, QString grantlee_template);