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occt/src/AIS/AIS_ColorScale.cxx
kgv 7c65581dd3 0027197: Configuration - fix compilation issues when using mingw 
AIS_ColorScale, AIS_Dimension - the protected method DrawText()
has been renamed to drawText() to avoid name collisions with macros.

_MSC_VER/_WIN32 misuse has been fixed in several places.
Header <malloc.h> is now included where alloca() is used.
Draw_Window - dllimport flag has been dropped from inline methods.

TKernel - mandatory dependencies Winspool.lib and Psapi.lib
are now linked explicitly (instead of msvc-specific pragma syntax).

CMake scripts - the option -std=c++0x has been replaced by -std=gnu++0x
for mingw to allow extensions (like _wfopen() and others).
The minimum Windows version has been set to _WIN32_WINNT=0x0501.
Invalid options "-z defs" and "-lm" have been dropped for mingw.
Flag --export-all-symbols has been added to CMAKE_SHARED_LINKER_FLAGS
to workaround missing vtable symbols when using mingw.
FreeType is now linked explicitly on Windows.

Draw::Load() - "lib" suffix is now prepended on mingw as well.

Drop redundant declaration of _TINT from OSD_WNT_1.hxx.
NCollection_UtfString::FromLocale() - platform-specific code has been moved to .cxx file.
Draw_BasicCommands - fixed incorrect mingw64 version macros.

genproj, cbp - added workaround for process argument list limits on Windows.
TKSTEP linkage is failing on this platform due to too long list of files.
The list of object files to link is now stored in dedicated file which is passed to gcc.

Option "-z defs" removed from CMake linker options to avoid problems when building with different configurations of VTK on Linux

Some MinGW-specific compiler warnings (potentially uninitialized vars, use of NULL, parentheses in conditional expressions) are fixed (speculatively)
2016-03-04 07:31:05 +03:00

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// Created on: 2015-02-03
// Copyright (c) 2015 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <AIS_ColorScale.hxx>
#include <AIS_InteractiveContext.hxx>
#include <Aspect_TypeOfColorScaleData.hxx>
#include <Aspect_TypeOfColorScalePosition.hxx>
#include <Aspect_Window.hxx>
#include <Geom_Line.hxx>
#include <GeomAdaptor_Curve.hxx>
#include <Graphic3d_ArrayOfPolygons.hxx>
#include <Graphic3d_ArrayOfPolylines.hxx>
#include <Graphic3d_AspectFillArea3d.hxx>
#include <Graphic3d_AspectText3d.hxx>
#include <Graphic3d_GraphicDriver.hxx>
#include <Graphic3d_ArrayOfTriangles.hxx>
#include <Prs3d_LineAspect.hxx>
#include <Prs3d_Root.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <Prs3d_Text.hxx>
#include <Prs3d_TextAspect.hxx>
#include <SelectMgr_EntityOwner.hxx>
#include <SelectMgr_Selection.hxx>
#include <Select3D_SensitiveBox.hxx>
#include <Select3D_SensitiveSegment.hxx>
#include <StdPrs_Curve.hxx>
#include <V3d_Viewer.hxx>
#include <V3d_View.hxx>
IMPLEMENT_STANDARD_RTTIEXT(AIS_ColorScale,AIS_InteractiveObject)
//=======================================================================
//function : AIS_ColorScale
//purpose :
//=======================================================================
AIS_ColorScale::AIS_ColorScale() :
myMin (0.0),
myMax (1.0),
myTitle (""),
myFormat ("%.4g"),
myInterval (10),
myColorType (Aspect_TOCSD_AUTO),
myLabelType (Aspect_TOCSD_AUTO),
myAtBorder (Standard_True),
myReversed (Standard_False),
myIsLogarithmic (Standard_False),
myLabelPos (Aspect_TOCSP_RIGHT),
myTitlePos (Aspect_TOCSP_CENTER),
myXPos (0),
myYPos (0),
myBreadth (0),
myHeight (0),
myTextHeight(20)
{
}
//=======================================================================
//function : GetRange
//purpose :
//=======================================================================
void AIS_ColorScale::GetRange (Standard_Real& theMin, Standard_Real& theMax) const
{
theMin = myMin;
theMax = myMax;
}
//=======================================================================
//function : GetLabel
//purpose :
//=======================================================================
TCollection_ExtendedString AIS_ColorScale::GetLabel (const Standard_Integer theIndex) const
{
if (GetLabelType() == Aspect_TOCSD_USER)
{
if (theIndex <= 0 || theIndex > myLabels.Length())
{
return "";
}
return myLabels.Value (theIndex);
}
// value to be shown depends on label position
Standard_Real aVal = IsLabelAtBorder() ? GetIntervalValue (theIndex - 1) :
0.5 * (GetIntervalValue (theIndex - 1) + GetIntervalValue (theIndex));
const TCollection_AsciiString aFormat = Format();
Standard_Character aBuf[1024];
sprintf (aBuf, aFormat.ToCString(), aVal);
return TCollection_ExtendedString (aBuf);
}
//=======================================================================
//function : GetIntervalColor
//purpose :
//=======================================================================
Quantity_Color AIS_ColorScale::GetIntervalColor (const Standard_Integer theIndex) const
{
if (GetColorType() == Aspect_TOCSD_USER)
{
if (theIndex <= 0 || theIndex > myColors.Length())
{
return Quantity_Color();
}
return myColors.Value (theIndex);
}
return Quantity_Color (HueFromValue (theIndex - 1, 0, GetNumberOfIntervals() - 1), 1.0, 1.0, Quantity_TOC_HLS);
}
//=======================================================================
//function : GetLabels
//purpose :
//=======================================================================
void AIS_ColorScale::GetLabels (TColStd_SequenceOfExtendedString& theLabels) const
{
theLabels.Clear();
for (Standard_Integer i = 1; i <= myLabels.Length(); i++)
theLabels.Append (myLabels.Value (i));
}
//=======================================================================
//function : GetColors
//purpose :
//=======================================================================
void AIS_ColorScale::GetColors (Aspect_SequenceOfColor& theColors) const
{
theColors.Clear();
for (Standard_Integer i = 1; i <= myColors.Length(); i++)
theColors.Append (myColors.Value (i));
}
//=======================================================================
//function : SetMin
//purpose :
//=======================================================================
void AIS_ColorScale::SetMin (const Standard_Real theMin)
{
SetRange (theMin, GetMax());
}
//=======================================================================
//function : SetMax
//purpose :
//=======================================================================
void AIS_ColorScale::SetMax (const Standard_Real theMax)
{
SetRange (GetMin(), theMax);
}
//=======================================================================
//function : SetRange
//purpose :
//=======================================================================
void AIS_ColorScale::SetRange (const Standard_Real theMin, const Standard_Real theMax)
{
if (myMin == theMin && myMax == theMax)
return;
myMin = Min (theMin, theMax);
myMax = Max (theMin, theMax);
}
//=======================================================================
//function : SetLabelType
//purpose :
//=======================================================================
void AIS_ColorScale::SetLabelType (const Aspect_TypeOfColorScaleData theType)
{
if (myLabelType == theType)
return;
myLabelType = theType;
}
//=======================================================================
//function : SetColorType
//purpose :
//=======================================================================
void AIS_ColorScale::SetColorType (const Aspect_TypeOfColorScaleData theType)
{
if (myColorType == theType)
return;
myColorType = theType;
}
//=======================================================================
//function : SetNumberOfIntervals
//purpose :
//=======================================================================
void AIS_ColorScale::SetNumberOfIntervals (const Standard_Integer theNum)
{
if (myInterval == theNum || theNum < 1)
return;
myInterval = theNum;
}
//=======================================================================
//function : SetTitle
//purpose :
//=======================================================================
void AIS_ColorScale::SetTitle (const TCollection_ExtendedString& theTitle)
{
if (myTitle == theTitle)
return;
myTitle = theTitle;
}
//=======================================================================
//function : SetFormat
//purpose :
//=======================================================================
void AIS_ColorScale::SetFormat (const TCollection_AsciiString& theFormat)
{
if (myFormat == theFormat)
return;
myFormat = theFormat;
}
//=======================================================================
//function : SetLabel
//purpose :
//=======================================================================
void AIS_ColorScale::SetLabel (const TCollection_ExtendedString& theLabel, const Standard_Integer theIndex)
{
Standard_Integer i = (theIndex <= 0 ? myLabels.Length() + 1 : theIndex);
while (i > myLabels.Length())
myLabels.Append (TCollection_ExtendedString());
myLabels.SetValue (i, theLabel);
}
//=======================================================================
//function : SetIntervalColor
//purpose :
//=======================================================================
void AIS_ColorScale::SetIntervalColor (const Quantity_Color& theColor, const Standard_Integer theIndex)
{
Standard_Integer i = (theIndex <= 0 ? myColors.Length() + 1 : theIndex);
while (i > myColors.Length())
myColors.Append (Quantity_Color());
myColors.SetValue (i, theColor);
}
//=======================================================================
//function : SetLabels
//purpose :
//=======================================================================
void AIS_ColorScale::SetLabels (const TColStd_SequenceOfExtendedString& theSeq)
{
myLabels.Clear();
for (Standard_Integer i = 1; i <= theSeq.Length(); i++)
myLabels.Append (theSeq.Value (i));
}
//=======================================================================
//function : SetColors
//purpose :
//=======================================================================
void AIS_ColorScale::SetColors (const Aspect_SequenceOfColor& theSeq)
{
myColors.Clear();
for (Standard_Integer i = 1; i <= theSeq.Length(); i++)
myColors.Append (theSeq.Value (i));
}
//=======================================================================
//function : SetLabelPosition
//purpose :
//=======================================================================
void AIS_ColorScale::SetLabelPosition (const Aspect_TypeOfColorScalePosition thePos)
{
if (myLabelPos == thePos)
return;
myLabelPos = thePos;
}
//=======================================================================
//function : SetTitlePosition
//purpose :
//=======================================================================
void AIS_ColorScale::SetTitlePosition (const Aspect_TypeOfColorScalePosition thePos)
{
if (myTitlePos == thePos)
return;
myTitlePos = thePos;
}
//=======================================================================
//function : SetReversed
//purpose :
//=======================================================================
void AIS_ColorScale::SetReversed (const Standard_Boolean theReverse)
{
if (myReversed == theReverse)
return;
myReversed = theReverse;
}
//=======================================================================
//function : SetLabelAtBorder
//purpose :
//=======================================================================
void AIS_ColorScale::SetLabelAtBorder (const Standard_Boolean theOn)
{
if (myAtBorder == theOn)
return;
myAtBorder = theOn;
}
//=======================================================================
//function : GetPosition
//purpose :
//=======================================================================
void AIS_ColorScale::GetPosition (Standard_Real& theX, Standard_Real& theY) const
{
theX = myXPos;
theY = myYPos;
}
//=======================================================================
//function : SetPosition
//purpose :
//=======================================================================
void AIS_ColorScale::SetPosition (const Standard_Integer theX, const Standard_Integer theY)
{
if (myXPos == theX && myYPos == theY)
return;
myXPos = theX;
myYPos = theY;
}
//=======================================================================
//function : SetXPosition
//purpose :
//=======================================================================
void AIS_ColorScale::SetXPosition (const Standard_Integer theX)
{
SetPosition (theX, GetYPosition());
}
//=======================================================================
//function : SetYPosition
//purpose :
//=======================================================================
void AIS_ColorScale::SetYPosition (const Standard_Integer theY)
{
SetPosition (GetXPosition(), theY);
}
//=======================================================================
//function : GetSize
//purpose :
//=======================================================================
void AIS_ColorScale::GetSize (Standard_Integer& theBreadth, Standard_Integer& theHeight) const
{
theBreadth = myBreadth;
theHeight = myHeight;
}
//=======================================================================
//function : SetSize
//purpose :
//=======================================================================
void AIS_ColorScale::SetSize (const Standard_Integer theBreadth, const Standard_Integer theHeight)
{
if (myBreadth == theBreadth && myHeight == theHeight)
return;
myBreadth = theBreadth;
myHeight = theHeight;
}
//=======================================================================
//function : SetBreadth
//purpose :
//=======================================================================
void AIS_ColorScale::SetBreadth (const Standard_Integer theWidth)
{
SetSize (theWidth, GetHeight());
}
//=======================================================================
//function : SetHeight
//purpose :
//=======================================================================
void AIS_ColorScale::SetHeight (const Standard_Integer theHeight)
{
SetSize (GetBreadth(), theHeight);
}
//=======================================================================
//function : SizeHint
//purpose :
//=======================================================================
void AIS_ColorScale::SizeHint (Standard_Integer& theWidth, Standard_Integer& theHeight) const
{
Standard_Integer aNum = GetNumberOfIntervals();
Standard_Integer aSpacer = 5;
Standard_Integer aTextWidth = 0;
Standard_Integer aTextHeight = TextHeight ("");
Standard_Integer aColorWidth = 20;
if (GetLabelPosition() != Aspect_TOCSP_NONE)
{
for (Standard_Integer idx = (IsLabelAtBorder() ? 0 : 1); idx <= aNum; idx++)
aTextWidth = Max (aTextWidth, TextWidth (GetLabel (idx)));
}
Standard_Integer aScaleWidth = 0;
Standard_Integer aScaleHeight = 0;
aScaleWidth = aColorWidth + aTextWidth + ( aTextWidth ? 3 : 2 ) * aSpacer;
aScaleHeight = (Standard_Integer)( 1.5 * ( aNum + (IsLabelAtBorder() ? 2 : 1) ) * aTextHeight );
Standard_Integer aTitleWidth = 0;
Standard_Integer aTitleHeight = 0;
if (GetTitle().Length())
{
aTitleHeight = TextHeight (GetTitle()) + aSpacer;
aTitleWidth = TextWidth (GetTitle()) + 10;
}
theWidth = Max (aTitleWidth, aScaleWidth);
theHeight = aScaleHeight + aTitleHeight;
}
//=======================================================================
//function : Format
//purpose :
//=======================================================================
TCollection_AsciiString AIS_ColorScale::Format() const
{
return GetFormat();
}
//=======================================================================
//function : GetIntervalValue
//purpose :
//=======================================================================
Standard_Real AIS_ColorScale::GetIntervalValue (const Standard_Integer theIndex) const
{
if (GetNumberOfIntervals() <= 0)
return 0.;
if (IsLogarithmic())
{
Standard_Real aMin = myMin > 0 ? myMin : 1.0;
Standard_Real aDivisor = std::pow (myMax/aMin, 1.0/myInterval);
return aMin*std::pow (aDivisor,theIndex);
}
Standard_Real aNum = 0;
if (GetNumberOfIntervals() > 0)
aNum = GetMin() + theIndex * ( Abs (GetMax() - GetMin()) / GetNumberOfIntervals() );
return aNum;
}
//=======================================================================
//function : HueFromValue
//purpose :
//=======================================================================
Standard_Integer AIS_ColorScale::HueFromValue (const Standard_Integer theValue,
const Standard_Integer theMin, const Standard_Integer theMax)
{
Standard_Integer aMinLimit (0), aMaxLimit (230);
Standard_Integer aHue = aMaxLimit;
if (theMin != theMax)
aHue = (Standard_Integer)( aMaxLimit - ( aMaxLimit - aMinLimit ) * ( theValue - theMin ) / ( theMax - theMin ) );
aHue = Min (Max (aMinLimit, aHue), aMaxLimit);
return aHue;
}
//=======================================================================
//function : FindColor
//purpose :
//=======================================================================
Standard_Boolean AIS_ColorScale::FindColor (const Standard_Real theValue,
Quantity_Color& theColor) const
{
return FindColor (theValue, myMin, myMax, myInterval, theColor);
}
//=======================================================================
//function : FindColor
//purpose :
//=======================================================================
Standard_Boolean AIS_ColorScale::FindColor (const Standard_Real theValue,
const Standard_Real theMin,
const Standard_Real theMax,
const Standard_Integer theColorsCount,
Quantity_Color& theColor)
{
if (theValue < theMin || theValue > theMax || theMax < theMin)
return Standard_False;
else
{
Standard_Real anIntervNumber = 0;
if(Abs (theMax-theMin) > Precision::Approximation())
anIntervNumber = Floor (Standard_Real (theColorsCount) * ( theValue - theMin ) / ( theMax - theMin ));
Standard_Integer anInterv = Standard_Integer (anIntervNumber);
theColor = Quantity_Color (HueFromValue (anInterv, 0, theColorsCount - 1), 1.0, 1.0, Quantity_TOC_HLS);
return Standard_True;
}
}
//=======================================================================
//function : Compute
//purpose :
//=======================================================================
void AIS_ColorScale::Compute(const Handle(PrsMgr_PresentationManager3d)& /*thePresentationManager*/,
const Handle(Prs3d_Presentation)& thePresentation,
const Standard_Integer /*theMode*/)
{
Handle(V3d_Viewer) aViewer= GetContext()->CurrentViewer();
aViewer->InitActiveViews();
Standard_Integer aNum = GetNumberOfIntervals();
Aspect_TypeOfColorScalePosition aLabPos = GetLabelPosition();
Standard_Integer aSpacer = 5;
Standard_Integer aTextWidth = 0;
Standard_Integer aTextHeight = myTextHeight;
Standard_Boolean toDrawLabel = GetLabelPosition() != Aspect_TOCSP_NONE;
TCollection_ExtendedString aTitle = GetTitle();
Standard_Integer aTitleHeight = aSpacer;
Quantity_Color aFgColor (hasOwnColor ? myOwnColor : Quantity_NOC_WHITE);
// Draw title
if (aTitle.Length())
{
aTitleHeight += myTextHeight + aSpacer;
drawText (thePresentation, aTitle, (Standard_Integer)myXPos + aSpacer, myHeight - ((Standard_Integer)myYPos - 2 * aSpacer + aTitleHeight), aFgColor);
}
Standard_Boolean toReverse = IsReversed();
Aspect_SequenceOfColor aColors;
for (Standard_Integer i = 1; i <= aNum; i++)
{
if (toReverse)
{
aColors.Prepend (GetIntervalColor (i));
}
else
{
aColors.Append (GetIntervalColor (i));
}
}
TColStd_SequenceOfExtendedString aLabels;
Standard_Integer aLabCount = IsLabelAtBorder() ? aNum + 1 : aNum;
for (Standard_Integer i = 1; i <= aLabCount; i++)
{
if (toReverse)
{
aLabels.Prepend (GetLabel (i));
}
else
{
aLabels.Append (GetLabel (i));
}
}
if (toDrawLabel)
for (Standard_Integer i = 1; i <= aLabels.Length(); i++)
aTextWidth = Max (aTextWidth, TextWidth (aLabels.Value (i)));
Standard_Integer aSpc = ( myHeight - ( ( Min (aLabCount, 2) + Abs (aLabCount - aNum - 1) ) * aTextHeight ) - aTitleHeight );
Standard_Real aVal = aSpc != 0 ? 1.0 * ( aLabCount - Min (aLabCount, 0) ) * aTextHeight / aSpc : 0;
Standard_Real anIPart;
Standard_Real anFPart = modf (aVal, &anIPart);
Standard_Integer aFilter = (Standard_Integer)anIPart + ( anFPart != 0 ? 1 : 0 );
Standard_Real aStep = 1.0 * ( myHeight - (aLabCount - aNum + Abs (aLabCount - aNum - 1)) * aTextHeight - aTitleHeight ) / aNum;
Standard_Integer anAscent = 0;
Standard_Integer aColorBreadth = Max (5, Min (20, myBreadth - aTextWidth - 3 * aSpacer));
if (aLabPos == Aspect_TOCSP_CENTER || !toDrawLabel)
aColorBreadth += aTextWidth;
// Draw colors
Standard_Integer aX = (Standard_Integer)myXPos + aSpacer;
if (aLabPos == Aspect_TOCSP_LEFT)
aX += aTextWidth + ( aTextWidth ? 1 : 0 ) * aSpacer;
Standard_Real anOffset = 1.0 * aTextHeight / 2 * ( aLabCount - aNum + Abs (aLabCount - aNum - 1) );
anOffset += 2*aSpacer;
Handle (Graphic3d_Group) aGroup = Prs3d_Root::CurrentGroup (thePresentation);
Handle (Graphic3d_ArrayOfTriangles) aPrim;
Standard_Integer anEdgesPerColor = 6;
Standard_Integer aVerticiesPerColor = 4;
aPrim = new Graphic3d_ArrayOfTriangles (aColors.Length()*aVerticiesPerColor, aColors.Length()*anEdgesPerColor, 0, 1);
Standard_Integer aVertIndex = 1;
for (Standard_Integer i = 1; i <= aColors.Length() && aStep > 0; i++)
{
Standard_Integer aY = (Standard_Integer)( myYPos + ( i - 1 )* aStep + anOffset );
Standard_Integer aColorHeight = (Standard_Integer)( myYPos + ( i ) * aStep + anOffset ) - aY;
aPrim->AddVertex (gp_Pnt (aX, aY, 0.0), aColors.Value( i ));
aPrim->AddVertex (gp_Pnt (aX+aColorBreadth, aY, 0.0), aColors.Value( i ));
aPrim->AddVertex (gp_Pnt (aX, aY+aColorHeight, 0.0), aColors.Value( i ));
aPrim->AddVertex (gp_Pnt (aX+aColorBreadth, aY+aColorHeight, 0.0), aColors.Value( i ));
aPrim->AddEdge(aVertIndex);
aPrim->AddEdge(aVertIndex+1);
aPrim->AddEdge(aVertIndex+2);
aPrim->AddEdge(aVertIndex+1);
aPrim->AddEdge(aVertIndex+2);
aPrim->AddEdge(aVertIndex+3);
aVertIndex += 4;
}
aGroup->AddPrimitiveArray (aPrim);
if (aStep > 0)
drawFrame (thePresentation, aX - 1, (Standard_Integer)(myYPos + anOffset - 1), aColorBreadth + 2, (Standard_Integer)(aColors.Length() * aStep + 2), aFgColor);
// Draw Labels
anOffset = 1.0 * Abs (aLabCount - aNum - 1) * ( aStep - aTextHeight ) / 2 + 1.0 * Abs (aLabCount - aNum - 1) * aTextHeight / 2;
anOffset += 2*aSpacer;
if (toDrawLabel && aLabels.Length() && aFilter > 0)
{
Standard_Integer i1 = 0;
Standard_Integer i2 = aLabCount - 1;
Standard_Integer aLast1( i1 ), aLast2( i2 );
aX = (Standard_Integer)myXPos + aSpacer;
switch (aLabPos)
{
case Aspect_TOCSP_NONE:
case Aspect_TOCSP_LEFT:
break;
case Aspect_TOCSP_CENTER:
aX += ( aColorBreadth - aTextWidth ) / 2;
break;
case Aspect_TOCSP_RIGHT:
aX += aColorBreadth + aSpacer;
break;
}
while (i2 - i1 >= aFilter || ( i2 == 0 && i1 == 0 ))
{
Standard_Integer aPos1 = i1;
Standard_Integer aPos2 = aLabCount - 1 - i2;
if (aFilter && !( aPos1 % aFilter ))
{
drawText (thePresentation, aLabels.Value (i1 + 1), aX, (Standard_Integer)( myYPos + i1 * aStep + anAscent + anOffset ), aFgColor);
aLast1 = i1;
}
if (aFilter && !( aPos2 % aFilter ))
{
drawText (thePresentation, aLabels.Value (i2 + 1), aX, (Standard_Integer)( myYPos + i2 * aStep + anAscent + anOffset ), aFgColor);
aLast2 = i2;
}
i1++;
i2--;
}
Standard_Integer aPos = i1;
Standard_Integer i0 = -1;
while (aPos <= i2 && i0 == -1)
{
if (aFilter && !( aPos % aFilter ) && Abs (aPos - aLast1) >= aFilter && Abs (aPos - aLast2) >= aFilter)
i0 = aPos;
aPos++;
}
if (i0 != -1)
drawText (thePresentation, aLabels.Value (i0 + 1), aX, (Standard_Integer)( myYPos + i0 * aStep + anAscent + anOffset ), aFgColor);
}
}
//=======================================================================
//function : drawFrame
//purpose :
//=======================================================================
void AIS_ColorScale::drawFrame (const Handle(Prs3d_Presentation)& thePresentation,
const Standard_Integer theX, const Standard_Integer theY,
const Standard_Integer theWidth, const Standard_Integer theHeight,
const Quantity_Color& theColor)
{
Handle (Graphic3d_Group) aGroup = Prs3d_Root::CurrentGroup (thePresentation);
Handle(Graphic3d_ArrayOfPolylines) aPrim = new Graphic3d_ArrayOfPolylines(5);
aPrim->AddVertex (theX,theY,0.0);
aPrim->AddVertex (theX+theWidth,theY,0.0);
aPrim->AddVertex (theX+theWidth,theY+theHeight,0.0);
aPrim->AddVertex (theX,theY+theHeight,0.0);
aPrim->AddVertex (theX,theY,0.0);
Handle(Prs3d_LineAspect) anAspect =
new Prs3d_LineAspect (theColor, Aspect_TOL_SOLID, 1.0);
anAspect->SetColor (theColor);
aGroup->SetPrimitivesAspect (anAspect->Aspect());
aGroup->AddPrimitiveArray (aPrim);
}
//=======================================================================
//function : drawText
//purpose :
//=======================================================================
void AIS_ColorScale::drawText (const Handle(Prs3d_Presentation)& thePresentation,
const TCollection_ExtendedString& theText,
const Standard_Integer theX, const Standard_Integer theY,
const Quantity_Color& theColor)
{
if (!myDrawer->HasOwnTextAspect())
{
myDrawer->SetTextAspect (new Prs3d_TextAspect());
*myDrawer->TextAspect()->Aspect() = *myDrawer->Link()->TextAspect()->Aspect();
}
Handle(Prs3d_TextAspect) anAspect = myDrawer->TextAspect();
anAspect->SetColor (theColor);
anAspect->SetHeight (myTextHeight);
anAspect->SetHorizontalJustification (Graphic3d_HTA_LEFT);
anAspect->SetVerticalJustification (Graphic3d_VTA_BOTTOM);
anAspect->Aspect()->SetTextZoomable (Standard_True);
anAspect->Aspect()->SetTextAngle (0.0);
anAspect->Aspect()->SetTextFontAspect (Font_FA_Regular);
Prs3d_Text::Draw (thePresentation, anAspect, theText,gp_Pnt (theX,theY,0.0));
}
//=======================================================================
//function : TextWidth
//purpose :
//=======================================================================
Standard_Integer AIS_ColorScale::TextWidth (const TCollection_ExtendedString& theText) const
{
Standard_Integer aWidth, anAscent, aDescent;
TextSize (theText, GetTextHeight(), aWidth, anAscent, aDescent);
return aWidth;
}
//=======================================================================
//function : TextHeight
//purpose :
//=======================================================================
Standard_Integer AIS_ColorScale::TextHeight (const TCollection_ExtendedString& theText) const
{
Standard_Integer aWidth, anAscent, aDescent;
TextSize (theText, GetTextHeight(), aWidth, anAscent, aDescent);
return anAscent+aDescent;
}
//=======================================================================
//function : TextSize
//purpose :
//=======================================================================
void AIS_ColorScale::TextSize (const TCollection_ExtendedString& theText, const Standard_Integer theHeight, Standard_Integer& theWidth, Standard_Integer& theAscent, Standard_Integer& theDescent) const
{
const Handle(Graphic3d_CView)& aView = GetContext()->CurrentViewer()->ActiveView()->View();
Standard_ShortReal aWidth(10.0), anAscent(1.0), aDescent(1.0);
TCollection_AsciiString aText (theText.ToExtString(), '?');
GetContext()->CurrentViewer()->Driver()->TextSize (aView, aText.ToCString(), (Standard_ShortReal)theHeight, aWidth, anAscent, aDescent);
theWidth = (Standard_Integer)aWidth;
theAscent = (Standard_Integer)anAscent;
theDescent = (Standard_Integer)aDescent;
}
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