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/*=========================================================================
Program: Visualization Toolkit
Module: vtkChart2DHistogram.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 "vtkChartHistogram2D.h"
#include "vtkContext2D.h"
#include "vtkBrush.h"
#include "vtkPen.h"
#include "vtkContextScene.h"
#include "vtkContextMouseEvent.h"
#include "vtkTextProperty.h"
#include "vtkAxis.h"
#include "vtkPlotHistogram2D.h"
#include "vtkColorLegend.h"
#include "vtkTooltipItem.h"
#include "vtkSmartPointer.h"
#include "vtkObjectFactory.h"
//-----------------------------------------------------------------------------
vtkStandardNewMacro(vtkChartHistogram2D);
//-----------------------------------------------------------------------------
vtkChartHistogram2D::vtkChartHistogram2D()
{
// Now for the 2D histogram
this->Histogram = vtkSmartPointer<vtkPlotHistogram2D>::New();
this->AddPlot(this->Histogram);
this->RemoveItem(this->Legend);
this->Legend = vtkSmartPointer<vtkColorLegend>::New();
this->AddItem(this->Legend);
// Re-add tooltip, making it the last ContextItem to be painted
this->RemoveItem(this->Tooltip);
this->AddItem(this->Tooltip);
}
//-----------------------------------------------------------------------------
vtkChartHistogram2D::~vtkChartHistogram2D()
{
}
//-----------------------------------------------------------------------------
void vtkChartHistogram2D::Update()
{
this->Histogram->Update();
this->Legend->Update();
this->vtkChartXY::Update();
}
//-----------------------------------------------------------------------------
void vtkChartHistogram2D::SetInputData(vtkImageData *data, vtkIdType z)
{
this->Histogram->SetInputData(data, z);
}
//-----------------------------------------------------------------------------
void vtkChartHistogram2D::SetTransferFunction(vtkScalarsToColors *function)
{
this->Histogram->SetTransferFunction(function);
vtkColorLegend *legend = vtkColorLegend::SafeDownCast(this->Legend);
if (legend)
{
legend->SetTransferFunction(function);
}
}
//-----------------------------------------------------------------------------
bool vtkChartHistogram2D::UpdateLayout(vtkContext2D *painter)
{
this->vtkChartXY::UpdateLayout(painter);
vtkColorLegend *legend = vtkColorLegend::SafeDownCast(this->Legend);
if (legend)
{
legend->SetPosition(vtkRectf(this->Point2[0] + 5, this->Point1[1],
this->Legend->GetSymbolWidth(),
this->Point2[1] - this->Point1[1]));
}
this->Legend->Update();
return true;
}
//-----------------------------------------------------------------------------
bool vtkChartHistogram2D::Hit(const vtkContextMouseEvent &mouse)
{
vtkVector2i pos(mouse.GetScreenPos());
if (pos[0] > this->Point1[0] - 10 &&
pos[0] < this->Point2[0] + 10 &&
pos[1] > this->Point1[1] &&
pos[1] < this->Point2[1])
{
return true;
}
else
{
return false;
}
}
//-----------------------------------------------------------------------------
vtkPlot* vtkChartHistogram2D::GetPlot(vtkIdType index)
{
if (index == 0)
{
return this->Histogram;
}
return 0;
}
//-----------------------------------------------------------------------------
void vtkChartHistogram2D::PrintSelf(ostream &os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
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