[TD]fix ActiveView image size

src/Mod/TechDraw/Gui/Grabber3d.cpp

@@ -55,14 +55,8 @@ void Grabber3d::quickView(View3DInventor* view3d,
         Base::Console().Warning("G3d::quickView - could not create viewer - returning\n");
         return;
     }
-    //figure out the size of the active MdiView
-    SbViewportRegion vport(viewer->getSoRenderManager()->getViewportRegion());
-    SbVec2s vpSize = vport.getViewportSizePixels();
-    short width;
-    short height;
-    vpSize.getValue(width, height);
 
     int samples = 8;  //magic number from Gui::View3DInventorViewer
-    viewer->savePicture(width, height, samples, bgColor, image);
+    viewer->savePicture(image.width(), image.height(), samples, bgColor, image);
 }
 

src/Mod/TechDraw/Gui/TaskActiveView.cpp

@@ -45,12 +45,16 @@
 #include "ui_TaskActiveView.h"
 #include "Grabber3d.h"
 #include "ViewProviderImage.h"
+#include "Rez.h"
 
 
 using namespace Gui;
 using namespace TechDraw;
 using namespace TechDrawGui;
 
+constexpr int SXGAWidth{1280};
+constexpr int SXGAHeight{1024};
+
 //ctor for creation
 TaskActiveView::TaskActiveView(TechDraw::DrawPage* pageFeat)
     : ui(new Ui_TaskActiveView), m_pageFeat(pageFeat), m_imageFeat(nullptr), m_btnOK(nullptr),
@@ -87,6 +91,9 @@ void TaskActiveView::setUiPrimary()
     setWindowTitle(QObject::tr("ActiveView to TD View"));
     ui->cbCrop->setChecked(false);
     enableCrop(false);
+    // cropping is in mm, but image size is in pixels/scene units
+    ui->qsbWidth->setValue(Rez::appX(SXGAWidth));
+    ui->qsbHeight->setValue(Rez::appX(SXGAHeight));
 }
 
 void TaskActiveView::blockButtons(bool b) { Q_UNUSED(b); }
@@ -183,9 +190,15 @@ TechDraw::DrawViewImage* TaskActiveView::createActiveView()
         bg = QColor(Qt::transparent);
     }
 
-    QImage image(100, 100,
-                 QImage::Format_RGB32);    //arbitrary initial image size. quickView will use
-                                           //MdiView size in pixels
+    int imageWidth{SXGAWidth};
+    int imageHeight{SXGAHeight};
+    if (ui->cbCrop->isChecked()) {
+        imageWidth = Rez::guiX(ui->qsbWidth->rawValue());
+        imageHeight = Rez::guiX(ui->qsbHeight->rawValue());
+    }
+
+    QImage image(imageWidth, imageHeight,
+                 QImage::Format_RGB32);    //arbitrary initial image size.
     image.fill(QColor(Qt::transparent));
     Grabber3d::quickView(view3d, bg, image);
     bool success = image.save(Base::Tools::fromStdString(tempName));