vtkScalarBarWidgetCustom.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include "vtkScalarBarWidgetCustom.h"
 
#include "VTKExtensions/Views/vtkContext2DScalarBarActor.h"
#include "VTKExtensions/Views/vtkScalarBarActorCustom.h"
#include "VTKExtensions/Views/vtkScalarBarRepresentationCustom.h"
#include "vtkCallbackCommand.h"
#include "vtkCoordinate.h"
#include "vtkObjectFactory.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkScalarBarActor.h"
#include "vtkScalarBarRepresentation.h"
#include "vtkTextProperty.h"
#include "vtkWidgetCallbackMapper.h"
#include "vtkWidgetEvent.h"
//-----------------------------------------------------------------------------
vtkStandardNewMacro(vtkScalarBarWidgetCustom);
 
//-------------------------------------------------------------------------
vtkScalarBarWidgetCustom::vtkScalarBarWidgetCustom() {
    this->Selectable = 0;
    this->Repositionable = 1;
 
    // Override the subclasses callback to handle the Repositionable flag.
    this->CallbackMapper->SetCallbackMethod(vtkCommand::MouseMoveEvent,
                                            vtkWidgetEvent::Move, this,
                                            Superclass::MoveAction);
}
 
//-------------------------------------------------------------------------
vtkScalarBarWidgetCustom::~vtkScalarBarWidgetCustom() = default;
 
//-----------------------------------------------------------------------------
void vtkScalarBarWidgetCustom::SetRepresentation(
        vtkScalarBarRepresentation* rep) {
    this->SetWidgetRepresentation(rep);
}
 
//-----------------------------------------------------------------------------
void vtkScalarBarWidgetCustom::SetScalarBarActor(vtkScalarBarActor* actor) {
    vtkScalarBarRepresentation* rep = this->GetScalarBarRepresentation();
    if (!rep) {
        this->CreateDefaultRepresentation();
        rep = this->GetScalarBarRepresentation();
    }
 
    if (rep->GetScalarBarActor() != actor) {
        rep->SetScalarBarActor(actor);
        this->Modified();
    }
}
 
//-----------------------------------------------------------------------------
vtkScalarBarActor* vtkScalarBarWidgetCustom::GetScalarBarActor() {
    vtkScalarBarRepresentation* rep = this->GetScalarBarRepresentation();
    if (!rep) {
        this->CreateDefaultRepresentation();
        rep = this->GetScalarBarRepresentation();
    }
 
    return rep->GetScalarBarActor();
}
 
//-----------------------------------------------------------------------------
void vtkScalarBarWidgetCustom::CreateDefaultRepresentation() {
    if (!this->WidgetRep) {
        vtkScalarBarRepresentationCustom* rep =
                vtkScalarBarRepresentationCustom::New();
        rep->SetWindowLocation(
                vtkScalarBarRepresentationCustom::LowerRightCorner);
        this->SetRepresentation(rep);
        rep->Delete();
    }
}
 
void vtkScalarBarWidgetCustom::CreateDefaultScalarBarActor() {
    vtkContext2DScalarBarActor* lut_actor = vtkContext2DScalarBarActor::New();
    lut_actor->SetTitle("");
    lut_actor->SetOrientationToVertical();
    vtkSmartPointer<vtkTextProperty> prop = lut_actor->GetLabelTextProperty();
    prop->SetFontSize(10);
    lut_actor->SetLabelTextProperty(prop);
    lut_actor->SetTitleTextProperty(prop);
    this->SetScalarBarActor(lut_actor);
    lut_actor->Delete();
}
 
//-------------------------------------------------------------------------
void vtkScalarBarWidgetCustom::PrintSelf(ostream& os, vtkIndent indent) {
    this->Superclass::PrintSelf(os, indent);
 
    os << indent << "Repositionable: " << this->Repositionable << endl;
}