Printing: add preview to TemplateEdit dialog

Show QPixmap in QLabel, Use Printer class to render the Preview on
the QPixmap.

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

1 files changed, 15 insertions, 0 deletions

diff --git a/printer.cpp b/printer.cpp
index c5867450f..7cef1104e 100644
--- a/printer.cpp
+++ b/printer.cpp
@@ -141,3 +141,18 @@ void Printer::print()
 	int Pages = ceil(getTotalWork(printOptions) / (float)divesPerPage);
 	render(Pages);
 }
+
+void Printer::previewOnePage()
+{
+	if (printMode == PREVIEW) {
+		TemplateLayout t(printOptions, templateOptions);
+
+		pageSize.setHeight(paintDevice->height());
+		pageSize.setWidth(paintDevice->width());
+		webView->page()->setViewportSize(pageSize);
+		webView->setHtml(t.generate());
+
+		// render only one page
+		render(1);
+	}
+}