Merge pull request #465 from letsfindaway/feat-403-grid-in-pdf

Feature: Export background grid/color to PDF

resources/etc/OpenBoard.config

@@ -124,6 +124,8 @@ RefreshRateInFramePerSecond=2
 
 [PDF]
 enableQualityLossToIncreaseZoomPerfs=true
+ExportBackgroundGrid=false
+ExportBackgroundColor=false
 Margin=20
 PageFormat=A4
 Resolution=300

src/adaptors/UBExportPDF.cpp

@@ -106,7 +106,17 @@ bool UBExportPDF::persistsDocument(UBDocumentProxy* pDocumentProxy, const QStrin
         // set background to white, no crossing for PDF output
         bool isDark = scene->isDarkBackground();
         UBPageBackground pageBackground = scene->pageBackground();
-        scene->setBackground(false, UBPageBackground::plain);
+
+        bool exportDark = isDark && UBSettings::settings()->exportBackgroundColor->get().toBool();
+
+        if (UBSettings::settings()->exportBackgroundGrid->get().toBool())
+        {
+            scene->setBackground(exportDark, pageBackground);
+        }
+        else
+        {
+            scene->setBackground(exportDark, UBPageBackground::plain);
+        }
 
         // pageSize is the output PDF page size; it is set to equal the scene's boundary size; if the contents
         // of the scene overflow from the boundaries, they will be scaled down.

src/core/UBSettings.cpp

@@ -409,6 +409,8 @@ void UBSettings::init()
 
     pdfZoomBehavior = new UBSetting(this, "PDF", "ZoomBehavior", "4");
     enableQualityLossToIncreaseZoomPerfs = new UBSetting(this, "PDF", "enableQualityLossToIncreaseZoomPerfs", true);
+    exportBackgroundGrid = new UBSetting(this, "PDF", "ExportBackgroundGrid", false);
+    exportBackgroundColor = new UBSetting(this, "PDF", "ExportBackgroundColor", false);
 
     podcastFramesPerSecond = new UBSetting(this, "Podcast", "FramesPerSecond", 10);
     podcastVideoSize = new UBSetting(this, "Podcast", "VideoSize", "Medium");

src/core/UBSettings.h

@@ -361,6 +361,8 @@ class UBSettings : public QObject
 
         UBSetting* pdfZoomBehavior;
         UBSetting* enableQualityLossToIncreaseZoomPerfs;
+        UBSetting* exportBackgroundGrid;
+        UBSetting* exportBackgroundColor;
 
         UBSetting* podcastFramesPerSecond;
         UBSetting* podcastVideoSize;