Calculate correct paper size. Print preview doesn't support non native

printers.

--HG--
branch : feature

src/app/valentina/dialogs/dialoglayoutsettings.cpp

@@ -528,8 +528,8 @@ void DialogLayoutSettings::DialogAccepted()
     SCASSERT(generator != nullptr)
     generator->SetLayoutWidth(GetLayoutWidth());
     generator->SetCaseType(GetGroup());
-    generator->SetPaperHeight(qFloor(GetPaperHeight()));
-    generator->SetPaperWidth(qFloor(GetPaperWidth()));
+    generator->SetPaperHeight(GetPaperHeight());
+    generator->SetPaperWidth(GetPaperWidth());
     generator->SetShift(qFloor(GetShift()));
     generator->SetRotate(GetRotate());
     generator->SetRotationIncrease(GetIncrease());

src/app/valentina/mainwindowsnogui.cpp

@@ -62,7 +62,7 @@ MainWindowsNoGUI::MainWindowsNoGUI(QWidget *parent)
       pattern(new VContainer(qApp->TrVars(), qApp->patternUnitP())), doc(nullptr), papers(QList<QGraphicsItem *>()),
       shadows(QList<QGraphicsItem *>()), scenes(QList<QGraphicsScene *>()), details(QList<QList<QGraphicsItem *> >()),
       undoAction(nullptr), redoAction(nullptr), actionDockWidgetToolOptions(nullptr), curFile(QString()),
-      isLayoutStale(true), margins(), isTiled(false)
+      isLayoutStale(true), margins(), paperSize(), isTiled(false)
 {
     InitTempLayoutScene();
 }
@@ -133,6 +133,7 @@ bool MainWindowsNoGUI::LayoutSettings(VLayoutGenerator& lGenerator)
             CreateScenes();
             PrepareSceneList();
             margins = lGenerator.GetFields();
+            paperSize = QSizeF(lGenerator.GetPaperWidth(), lGenerator.GetPaperHeight());
             isLayoutStale = false;
             break;
         case LayoutErrors::ProcessStoped:
@@ -799,7 +800,7 @@ void MainWindowsNoGUI::PrintPreview()
         return;
     }
 
-    SetPrinterSettings(printer.data());
+    SetPrinterSettings(printer.data(), false);
     // display print preview dialog
     QPrintPreviewDialog  preview(printer.data());
     connect(&preview, &QPrintPreviewDialog::paintRequested, this, &MainWindowsNoGUI::PrintPages);
@@ -830,7 +831,7 @@ void MainWindowsNoGUI::LayoutPrint()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void MainWindowsNoGUI::SetPrinterSettings(QPrinter *printer)
+void MainWindowsNoGUI::SetPrinterSettings(QPrinter *printer, bool prepareForPrinting)
 {
     SCASSERT(printer != nullptr)
     printer->setCreator(qApp->applicationDisplayName()+" "+qApp->applicationVersion());
@@ -852,10 +853,8 @@ void MainWindowsNoGUI::SetPrinterSettings(QPrinter *printer)
 
     if (not isTiled && papers.size() > 0)
     {
-        QGraphicsRectItem *paper = qgraphicsitem_cast<QGraphicsRectItem *>(papers.at(0));
-        SCASSERT(paper != nullptr)
-        printer->setPaperSize ( QSizeF(FromPixel(paper->rect().width(), Unit::Mm),
-                                       FromPixel(paper->rect().height(), Unit::Mm)), QPrinter::Millimeter );
+        printer->setPaperSize ( QSizeF(FromPixel(paperSize.width(), Unit::Mm),
+                                       FromPixel(paperSize.height(), Unit::Mm)), QPrinter::Millimeter );
     }
 
     {
@@ -866,11 +865,14 @@ void MainWindowsNoGUI::SetPrinterSettings(QPrinter *printer)
         printer->setPageMargins(left, top, right, bottom, QPrinter::Millimeter);
     }
 
+    if (prepareForPrinting)
+    {
         #ifdef Q_OS_WIN
         printer->setOutputFileName(QDir::homePath() + QDir::separator() + FileName());
         #else
         printer->setOutputFileName(QDir::homePath() + QDir::separator() + FileName() + QLatin1Literal(".pdf"));
         #endif
+    }
     printer->setDocName(FileName());
 
     IsLayoutGrayscale() ? printer->setColorMode(QPrinter::GrayScale) : printer->setColorMode(QPrinter::Color);

src/app/valentina/mainwindowsnogui.h

@@ -88,6 +88,7 @@ protected:
 
     bool isLayoutStale;
     QMarginsF margins;
+    QSizeF paperSize;
 
     void PrepareDetailsForLayout(const QHash<quint32, VDetail> *details);
     void ExportLayout(const DialogSaveLayout &dialog);
@@ -120,7 +121,7 @@ private:
     void PrintPreview();
     void LayoutPrint();
 
-    void SetPrinterSettings(QPrinter *printer);
+    void SetPrinterSettings(QPrinter *printer, bool prepareForPrinting = true);
     bool IsLayoutGrayscale() const;
 
     bool isPagesUniform() const;

src/libs/vlayout/vlayoutgenerator.cpp

@@ -192,13 +192,13 @@ void VLayoutGenerator::Abort()
 //---------------------------------------------------------------------------------------------------------------------
 int VLayoutGenerator::PageHeight() const
 {
-    return paperHeight - static_cast<int>(margins.top() + margins.bottom());
+    return static_cast<int>(paperHeight - (margins.top() + margins.bottom()));
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 int VLayoutGenerator::PageWidth() const
 {
-    return paperWidth - static_cast<int>(margins.left() + margins.right());
+    return static_cast<int>(paperWidth - (margins.left() + margins.right()));
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -268,13 +268,13 @@ void VLayoutGenerator::SetRotate(bool value)
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-int VLayoutGenerator::GetPaperWidth() const
+qreal VLayoutGenerator::GetPaperWidth() const
 {
     return paperWidth;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VLayoutGenerator::SetPaperWidth(int value)
+void VLayoutGenerator::SetPaperWidth(qreal value)
 {
     paperWidth = value;
 }
@@ -304,13 +304,13 @@ void VLayoutGenerator::SetShift(quint32 shift)
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-int VLayoutGenerator::GetPaperHeight() const
+qreal VLayoutGenerator::GetPaperHeight() const
 {
     return paperHeight;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VLayoutGenerator::SetPaperHeight(int value)
+void VLayoutGenerator::SetPaperHeight(qreal value)
 {
     paperHeight = value;
 }

src/libs/vlayout/vlayoutgenerator.h

@@ -53,11 +53,11 @@ public:
     void SetCaseType(Cases caseType);
     int DetailsCount();
 
-    int GetPaperHeight() const;
-    void SetPaperHeight(int value);
+    qreal GetPaperHeight() const;
+    void SetPaperHeight(qreal value);
 
-    int GetPaperWidth() const;
-    void SetPaperWidth(int value);
+    qreal GetPaperWidth() const;
+    void SetPaperWidth(qreal value);
 
     QMarginsF GetFields() const;
     void SetFields(const QMarginsF &value);
@@ -100,8 +100,8 @@ private:
     Q_DISABLE_COPY(VLayoutGenerator)
     QVector<VLayoutPaper> papers;
     VBank *bank;
-    int paperHeight;
-    int paperWidth;
+    qreal paperHeight;
+    qreal paperWidth;
     QMarginsF margins;
     volatile bool stopGeneration;
     LayoutErrors state;