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/*=========================================================================
Program: Visualization Toolkit
Module: vtkContextClip.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkContextClip.h"
#include "vtkContext2D.h"
#include "vtkContextDevice2D.h"
#include "vtkContextScenePrivate.h"
#include "vtkObjectFactory.h"
#include "vtkTransform2D.h"
#include "vtkVector.h"
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkContextClip);
//------------------------------------------------------------------------------
vtkContextClip::vtkContextClip()
{
this->Dims[0] = 0.0;
this->Dims[1] = 0.0;
this->Dims[2] = 100.0;
this->Dims[3] = 100.0;
}
//------------------------------------------------------------------------------
vtkContextClip::~vtkContextClip() = default;
//------------------------------------------------------------------------------
bool vtkContextClip::Paint(vtkContext2D* painter)
{
// Clip rendering for all child items.
// Check whether the scene has a transform - use it if so
float* clipBy = this->Dims;
int clipi[] = { vtkContext2D::FloatToInt(clipBy[0]), vtkContext2D::FloatToInt(clipBy[1]),
vtkContext2D::FloatToInt(clipBy[2]), vtkContext2D::FloatToInt(clipBy[3]) };
painter->GetDevice()->SetClipping(clipi);
painter->GetDevice()->EnableClipping(true);
bool result = this->PaintChildren(painter);
painter->GetDevice()->EnableClipping(false);
return result;
}
//------------------------------------------------------------------------------
void vtkContextClip::Update() {}
//------------------------------------------------------------------------------
void vtkContextClip::SetClip(float x, float y, float width, float height)
{
this->Dims[0] = x;
this->Dims[1] = y;
// assure stored width, height are >= 0
this->Dims[2] = std::max<float>(0.0, width);
this->Dims[3] = std::max<float>(0.0, height);
}
//------------------------------------------------------------------------------
void vtkContextClip::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
VTK_ABI_NAMESPACE_END
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