Issue #3041: prevent crash on change sketch plane

[modules/shaper.git] / src / SketcherPrs / SketcherPrs_SymbolPrs.cpp

diff --git a/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp b/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp
index d23827aa7f745111e1cf1edda79b1b2e1bfad6a3..5f79c5fbaec5d90b5dca3abe513ef441be0c4bf3 100644 (file)
--- a/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp
+++ b/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp
@@ -177,6 +177,19 @@ Handle(Image_AlienPixMap) SketcherPrs_SymbolPrs::icon()
   aFile += iconName();
   Handle(Image_AlienPixMap) aPixMap = new Image_AlienPixMap();
   if (aPixMap->Load(aFile.c_str())) {
+    int aRatio = SketcherPrs_Tools::pixelRatio();
+    if (aRatio > 1) {
+      Handle(Image_AlienPixMap) aSizedMap = new Image_AlienPixMap();
+      Standard_Size aWidth = aPixMap->Width() * aRatio;
+      Standard_Size aHeigh = aPixMap->Height() * aRatio;
+      aSizedMap->InitTrash(aPixMap->Format(), aWidth, aHeigh);
+      for (Standard_Size i = 0; i < aWidth; i++) {
+        for (Standard_Size j = 0; j < aHeigh; j++) {
+          aSizedMap->SetPixelColor(i, j, aPixMap->PixelColor(i / aRatio, j / aRatio));
+        }
+      }
+      aPixMap = aSizedMap;
+    }
     myIconsMap[iconName()] = aPixMap;
     return aPixMap;
   }
@@ -261,6 +274,8 @@ void SketcherPrs_SymbolPrs::Compute(
                 const Handle(Prs3d_Presentation)& thePresentation,
                 const Standard_Integer theMode)
 {
+  if (!plane().get())
+    return;
   // Create an icon
   prepareAspect();