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/*=========================================================================
Program: Visualization Toolkit
Module: TestTextMapper.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 "vtkTextMapper.h"
#include "vtkActor2D.h"
#include "vtkCamera.h"
#include "vtkCellArray.h"
#include "vtkCellData.h"
#include "vtkNew.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper2D.h"
#include "vtkProperty2D.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkTestingInteractor.h"
#include "vtkTextProperty.h"
#include "vtkUnsignedCharArray.h"
#include <sstream>
namespace vtkTestTextMapper {
void setupTextMapper(vtkTextMapper *mapper,
vtkActor2D *actor,
vtkPolyData *anchor)
{
vtkTextProperty *p = mapper->GetTextProperty();
std::ostringstream label;
label << "TProp Angle: " << p->GetOrientation() << "\n"
<< "HAlign: " << p->GetJustificationAsString() << "\n"
<< "VAlign: " << p->GetVerticalJustificationAsString();
mapper->SetInput(label.str().c_str());
// Add the anchor point:
double *pos = actor->GetPosition();
double *col = p->GetColor();
vtkIdType ptId = anchor->GetPoints()->InsertNextPoint(pos[0], pos[1], 0.);
anchor->GetVerts()->InsertNextCell(1, &ptId);
anchor->GetCellData()->GetScalars()->InsertNextTuple4(col[0] * 255,
col[1] * 255,
col[2] * 255, 255);
}
} // end namespace vtkTestTextMapper
//----------------------------------------------------------------------------
int TestTextMapper(int, char *[])
{
using namespace vtkTestTextMapper;
vtkNew<vtkRenderer> ren;
int width = 600;
int height = 600;
int x[3] = {100, 300, 500};
int y[3] = {100, 300, 500};
// Render the anchor points to check alignment:
vtkNew<vtkPolyData> anchors;
vtkNew<vtkPoints> points;
anchors->SetPoints(points.GetPointer());
vtkNew<vtkCellArray> verts;
anchors->SetVerts(verts.GetPointer());
vtkNew<vtkUnsignedCharArray> colors;
colors->SetNumberOfComponents(4);
anchors->GetCellData()->SetScalars(colors.GetPointer());
for (size_t row = 0; row < 3; ++row)
{
for (size_t col = 0; col < 3; ++col)
{
vtkNew<vtkTextMapper> mapper;
switch (row)
{
case 0:
mapper->GetTextProperty()->SetJustificationToRight();
break;
case 1:
mapper->GetTextProperty()->SetJustificationToCentered();
break;
case 2:
mapper->GetTextProperty()->SetJustificationToLeft();
break;
}
switch (col)
{
case 0:
mapper->GetTextProperty()->SetVerticalJustificationToBottom();
break;
case 1:
mapper->GetTextProperty()->SetVerticalJustificationToCentered();
break;
case 2:
mapper->GetTextProperty()->SetVerticalJustificationToTop();
break;
}
mapper->GetTextProperty()->SetOrientation(45.0 * (3 * row + col));
mapper->GetTextProperty()->SetColor(0.75, .2 + col * .26, .2 + row * .2);
vtkNew<vtkActor2D> actor;
actor->SetPosition(x[col], y[row]);
actor->SetMapper(mapper.GetPointer());
setupTextMapper(mapper.GetPointer(), actor.GetPointer(),
anchors.GetPointer());
ren->AddActor2D(actor.GetPointer());
}
}
vtkNew<vtkPolyDataMapper2D> anchorMapper;
anchorMapper->SetInputData(anchors.GetPointer());
vtkNew<vtkActor2D> anchorActor;
anchorActor->SetMapper(anchorMapper.GetPointer());
anchorActor->GetProperty()->SetPointSize(5);
ren->AddActor2D(anchorActor.GetPointer());
vtkNew<vtkRenderWindow> win;
win->AddRenderer(ren.GetPointer());
vtkNew<vtkRenderWindowInteractor> iren;
iren->SetRenderWindow(win.GetPointer());
ren->SetBackground(0.0, 0.0, 0.0);
ren->GetActiveCamera()->SetPosition(0, 0, 400);
ren->GetActiveCamera()->SetFocalPoint(0, 0, 0);
ren->GetActiveCamera()->SetViewUp(0, 1, 0);
ren->ResetCameraClippingRange();
win->SetSize(width, height);
// Finally render the scene and compare the image to a reference image
win->SetMultiSamples(0);
win->GetInteractor()->Initialize();
win->GetInteractor()->Start();
return EXIT_SUCCESS;
}
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