From 1382149dd210706df3a52b380b51af57203326a0 Mon Sep 17 00:00:00 2001
From: mzn <mzn@opencascade.com>
Date: Thu, 8 Dec 2016 10:54:09 +0300
Subject: [PATCH] Porting to OCCT 7.0: fix land cover map amd color scale
 displaying.

---
 src/HYDROData/HYDROData_LandCoverMap.cxx |  2 +-
 src/HYDROGUI/HYDROGUI_OCCDisplayer.cxx   | 48 +++++++++++++++---------
 2 files changed, 32 insertions(+), 18 deletions(-)

diff --git a/src/HYDROData/HYDROData_LandCoverMap.cxx b/src/HYDROData/HYDROData_LandCoverMap.cxx
index 55e51656..843e35a4 100644
--- a/src/HYDROData/HYDROData_LandCoverMap.cxx
+++ b/src/HYDROData/HYDROData_LandCoverMap.cxx
@@ -1181,7 +1181,7 @@ void HYDROData_LandCoverMap::SetTransparency( double theTransparency )
 
 double HYDROData_LandCoverMap::GetTransparency() const
 {
-  return GetDouble( DataTag_Transparency, 0.5 );
+  return GetDouble( DataTag_Transparency, 0.25 );
 }
 
 bool HYDROData_LandCoverMap::ImportSHP( const QString& theSHPFileName,
diff --git a/src/HYDROGUI/HYDROGUI_OCCDisplayer.cxx b/src/HYDROGUI/HYDROGUI_OCCDisplayer.cxx
index 6f508111..f0386a46 100644
--- a/src/HYDROGUI/HYDROGUI_OCCDisplayer.cxx
+++ b/src/HYDROGUI/HYDROGUI_OCCDisplayer.cxx
@@ -423,13 +423,6 @@ void HYDROGUI_OCCDisplayer::UpdateColorScale( const OCCViewer_Viewer* theViewer
   QList<HYDROGUI_Shape*> aBathShapes = module()->getObjectShapes( aViewerId, KIND_BATHYMETRY );
 
   bool isDisplayColorScale = !aBathShapes.empty() || isLandCoverColoringOn;
-  Standard_Real anXPos = 0.05; //TODO
-  Standard_Real anYPos = 0.1; //TODO
-  Standard_Real aWidth = 0.2; //TODO
-  Standard_Real aHeight = 0.5; //TODO
-  Standard_Integer aTextHeight = 14; //TODO
-  Standard_Integer aNbIntervals = 20; //TODO
-  TCollection_ExtendedString aColorScaleTitle = "";//TODO
 
   Standard_Real aColorScaleMin = 0, aColorScaleMax = 1;
 
@@ -470,15 +463,11 @@ void HYDROGUI_OCCDisplayer::UpdateColorScale( const OCCViewer_Viewer* theViewer
   {
     if( !aColorScale.IsNull() )
     {
-      aColorScale->SetXPosition( anXPos );
-      aColorScale->SetYPosition( anYPos );
-      aColorScale->SetWidth( aWidth );
-      aColorScale->SetHeight( aHeight );
-
-      aColorScale->SetTextHeight( aTextHeight );
-      aColorScale->SetNumberOfIntervals( aNbIntervals );
-
+      // Set color scale title
+      TCollection_ExtendedString aColorScaleTitle = ""; //TODO
       aColorScale->SetTitle( aColorScaleTitle );
+      
+      // Set color scale range
       aColorScale->SetRange( aColorScaleMin, aColorScaleMax );
       
       aColorScale->SetToUpdate();
@@ -493,8 +482,12 @@ void HYDROGUI_OCCDisplayer::UpdateColorScale( const OCCViewer_Viewer* theViewer
         }
       }
       
-      if ( !aCtx.IsNull() && !aCtx->IsDisplayed( aColorScale ) ) {
-        aCtx->Display( aColorScale );
+      if ( !aCtx.IsNull()/* && !aCtx->IsDisplayed( aColorScale ) */) {
+	if ( !aCtx->IsDisplayed( aColorScale ) ) {
+	  aCtx->Display( aColorScale, Standard_False );
+	}
+
+	aCtx->Update( aColorScale );
       }
     }
   }
@@ -537,7 +530,28 @@ Handle(AIS_ColorScale) HYDROGUI_OCCDisplayer::GetColorScale( const int theViewer
 
   aColorScale = myColorScales.value( theViewerId, aColorScale );
   if ( aColorScale.IsNull() ) {
+    // Create color scale
     aColorScale = new AIS_ColorScale();
+
+    // Set properties
+    Standard_Integer anXPos = 50; //TODO
+    Standard_Integer anYPos = 100; //TODO
+    Standard_Integer aWidth = 100; //TODO
+    Standard_Integer aHeight = 350; //TODO
+    
+    Standard_Integer aTextHeight = 14; //TODO
+    Standard_Integer aNbIntervals = 20; //TODO
+
+    aColorScale->SetTransformPersistence( Graphic3d_TMF_2d, gp_Pnt( -1, -1, 0 ) );
+    
+    aColorScale->SetXPosition( anXPos );
+    aColorScale->SetYPosition( anYPos );
+    aColorScale->SetSize( aWidth, aHeight );
+
+    aColorScale->SetTextHeight( aTextHeight );
+    aColorScale->SetNumberOfIntervals( aNbIntervals );
+
+    // Put into the map
     myColorScales.insert( theViewerId, aColorScale );
   }
 
-- 
2.39.2