Add the ability to export print template as html

This way we can view the html generated from a print template, for
debugging, validation or printing via your favorite browser.

Signed-off-by: Anton Lundin <glance@acc.umu.se>

desktop-widgets/printdialog.cpp

@@ -7,6 +7,7 @@
 #include <QProgressBar>
 #include <QPrintPreviewDialog>
 #include <QPrintDialog>
+#include <QFileDialog>
 #include <QShortcut>
 #include <QSettings>
 #include <QMessageBox>
@@ -108,10 +109,14 @@ PrintDialog::PrintDialog(QWidget *parent, Qt::WindowFlags f) :
 	QPushButton *previewButton = new QPushButton(tr("&Preview"));
 	connect(previewButton, SIGNAL(clicked(bool)), this, SLOT(previewClicked()));
 
+	QPushButton *exportHtmlButton = new QPushButton(tr("Export Html"));
+	connect(exportHtmlButton, SIGNAL(clicked(bool)), this, SLOT(exportHtmlClicked()));
+
 	QDialogButtonBox *buttonBox = new QDialogButtonBox;
 	buttonBox->addButton(QDialogButtonBox::Cancel);
 	buttonBox->addButton(printButton, QDialogButtonBox::AcceptRole);
 	buttonBox->addButton(previewButton, QDialogButtonBox::ActionRole);
+	buttonBox->addButton(exportHtmlButton, QDialogButtonBox::AcceptRole);
 
 	connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
 
@@ -181,6 +186,25 @@ void PrintDialog::previewClicked(void)
 	previewDialog.exec();
 }
 
+void PrintDialog::exportHtmlClicked(void)
+{
+	createPrinterObj();
+	QString saveFileName = printOptions.p_template;
+	QString filename = existing_filename ?: prefs.default_filename;
+	QFileInfo fi(filename);
+	filename = fi.absolutePath().append(QDir::separator()).append(saveFileName);
+	QString htmlExportFilename = QFileDialog::getSaveFileName(this, tr("Filename to export html to"),
+							  filename, tr("Html file") + " (*.html)");
+	if (!htmlExportFilename.isEmpty()) {
+		QFile file(htmlExportFilename);
+		file.open(QIODevice::WriteOnly);
+		connect(printer, SIGNAL(progessUpdated(int)), progressBar, SLOT(setValue(int)));
+		file.write(printer->exportHtml().toUtf8());
+		file.close();
+		close();
+	}
+}
+
 void PrintDialog::printClicked(void)
 {
 	createPrinterObj();

desktop-widgets/printdialog.h

@@ -33,6 +33,7 @@ private
 slots:
 	void onFinished();
 	void previewClicked();
+	void exportHtmlClicked();
 	void printClicked();
 	void onPaintRequested(QPrinter *);
 	void createPrinterObj();

desktop-widgets/printer.cpp

@@ -195,6 +195,21 @@ void Printer::templateProgessUpdated(int value)
 	emit progessUpdated(done);
 }
 
+QString Printer::exportHtml() {
+	TemplateLayout t(printOptions, templateOptions);
+	connect(&t, SIGNAL(progressUpdated(int)), this, SLOT(templateProgessUpdated(int)));
+	QString html;
+
+	if (printOptions->type == print_options::DIVELIST) {
+		html = t.generate();
+	} else if (printOptions->type == print_options::STATISTICS ) {
+		html = t.generateStatistics();
+	}
+
+	// TODO: write html to file
+	return html;
+}
+
 void Printer::print()
 {
 	// we can only print if "PRINT" mode is selected

desktop-widgets/printer.h

@@ -40,6 +40,7 @@ public:
 	~Printer();
 	void print();
 	void previewOnePage();
+	QString exportHtml();
 
 signals:
 	void progessUpdated(int value);