File: View_ToolBar.cxx

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// Created on: 2017-06-16
// Created by: Natalia ERMOLAEVA
// Copyright (c) 2017 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 <inspector/View_ToolBar.hxx>

#include <Standard_WarningsDisable.hxx>
#include <QComboBox>
#include <QHBoxLayout>
#include <QLabel>
#include <QToolButton>
#include <QWidget>
#include <Standard_WarningsRestore.hxx>

const int DEFAULT_COMBO_WIDTH_MINIMUM = 80;
const int DEFAULT_SPACING             = 3;

// =======================================================================
// function : Constructor
// purpose :
// =======================================================================
View_ToolBar::View_ToolBar(QWidget* theParent, const bool isUseKeepView)
    : QObject(theParent),
      myDefaultContextType(-1)
{
  myMainWindow = new QWidget(theParent);

  QHBoxLayout* aLay = new QHBoxLayout(myMainWindow);
  aLay->setContentsMargins(0, 0, 0, 0);
  aLay->setSpacing(DEFAULT_SPACING);

  QWidget*     aViewSelectorWidget = new QWidget(myMainWindow);
  QHBoxLayout* aViewSelectorLay    = new QHBoxLayout(aViewSelectorWidget);
  aViewSelectorLay->setContentsMargins(0, 0, 0, 0);
  aViewSelectorLay->setContentsMargins(0, 0, 0, 0);
  aViewSelectorLay->addWidget(new QLabel(tr("Context: "), aViewSelectorWidget));
  myViewSelector = new QComboBox(aViewSelectorWidget);
  myViewSelector->setMinimumWidth(DEFAULT_COMBO_WIDTH_MINIMUM);
  aViewSelectorLay->addWidget(myViewSelector);
  aLay->addWidget(aViewSelectorWidget);
  connect(myViewSelector, SIGNAL(activated(int)), this, SIGNAL(contextChanged()));

  myViewContextNames[View_ContextType_None]     = tr("None");
  myViewContextNames[View_ContextType_Own]      = tr("Own");
  myViewContextNames[View_ContextType_External] = tr("External");

  myViewSelector->insertItem(View_ContextType_None, myViewContextNames[View_ContextType_None]);
  myViewSelector->insertItem(View_ContextType_Own, myViewContextNames[View_ContextType_Own]);

  myViewSelector->setCurrentIndex(View_ContextType_Own);
  myViewContexts[View_ContextType_None]     = Handle(AIS_InteractiveContext)();
  myViewContexts[View_ContextType_Own]      = Handle(AIS_InteractiveContext)();
  myViewContexts[View_ContextType_External] = Handle(AIS_InteractiveContext)();

  myActionsMap[View_ToolActionType_Trihedron] = new QToolButton(theParent);
  myActionsMap[View_ToolActionType_Trihedron]->setIcon(QIcon(":/icons/trihedron.png"));
  myActionsMap[View_ToolActionType_Trihedron]->setToolTip(tr("Trihedron display"));
  myActionsMap[View_ToolActionType_Trihedron]->setCheckable(true);
  myActionsMap[View_ToolActionType_Trihedron]->setChecked(false);

  myActionsMap[View_ToolActionType_ViewCube] = new QToolButton(theParent);
  myActionsMap[View_ToolActionType_ViewCube]->setIcon(QIcon(":/icons/view_cube.png"));
  myActionsMap[View_ToolActionType_ViewCube]->setToolTip(tr("View Cube display"));
  myActionsMap[View_ToolActionType_ViewCube]->setCheckable(true);
  myActionsMap[View_ToolActionType_ViewCube]->setChecked(false);

  if (isUseKeepView)
  {
    myActionsMap[View_ToolActionType_KeepViewId] = new QToolButton(theParent);
    myActionsMap[View_ToolActionType_KeepViewId]->setIcon(QIcon(":/icons/keep_view_on.png"));
    myActionsMap[View_ToolActionType_KeepViewId]->setText(tr("Multi"));
    myActionsMap[View_ToolActionType_KeepViewId]->setToolTip(
      tr("Keep View On: does not clear previously shown presentation"));
    myActionsMap[View_ToolActionType_KeepViewId]->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
    myActionsMap[View_ToolActionType_KeepViewId]->setCheckable(true);
    myActionsMap[View_ToolActionType_KeepViewId]->setChecked(false);

    myActionsMap[View_ToolActionType_KeepViewOffId] = new QToolButton(theParent);
    myActionsMap[View_ToolActionType_KeepViewOffId]->setIcon(QIcon(":/icons/keep_view_off.png"));
    myActionsMap[View_ToolActionType_KeepViewOffId]->setText(QObject::tr("Single"));
    myActionsMap[View_ToolActionType_KeepViewOffId]->setToolButtonStyle(
      Qt::ToolButtonTextBesideIcon);
    myActionsMap[View_ToolActionType_KeepViewOffId]->setToolTip(
      tr("Keep View Off: clear previously shown presentation"));
    myActionsMap[View_ToolActionType_KeepViewOffId]->setCheckable(true);
    myActionsMap[View_ToolActionType_KeepViewOffId]->setChecked(true);

    myActionsMap[View_ToolActionType_ClearViewId] = new QToolButton(theParent);
    myActionsMap[View_ToolActionType_ClearViewId]->setIcon(QIcon(":/icons/view_clear.png"));
    myActionsMap[View_ToolActionType_ClearViewId]->setText(tr("Clear View"));
    myActionsMap[View_ToolActionType_ClearViewId]->setToolTip(
      tr("Remove all visualized presentations from view context"));
  }

  for (QMap<View_ToolActionType, QToolButton*>::ConstIterator anActionsIt   = myActionsMap.begin(),
                                                              anActionsLast = myActionsMap.end();
       anActionsIt != anActionsLast;
       anActionsIt++)
  {
    QToolButton* aBtn = anActionsIt.value();
    connect(aBtn, SIGNAL(clicked()), this, SLOT(onActionClicked()));
    aLay->addWidget(aBtn);
  }
  aLay->addStretch(1);
}

// =======================================================================
// function : SetContext
// purpose :
// =======================================================================
void View_ToolBar::SetContext(View_ContextType                      theType,
                              const Handle(AIS_InteractiveContext)& theContext)
{
  myViewContexts[theType] = theContext;

  QString aViewContextName = myViewContextNames[theType];
  if (!theContext.IsNull())
    aViewContextName = QString("%1 : [%2]")
                         .arg(myViewContextNames[theType])
                         .arg(Standard_Dump::GetPointerInfo(theContext, true).ToCString());
  // there are only "Own" and "None" items
  if (!theContext.IsNull() && theType == View_ContextType_External && myViewSelector->count() == 2)
    myViewSelector->insertItem(View_ContextType_External, aViewContextName);
  else
    myViewSelector->setItemText(theType, aViewContextName);

  if (myDefaultContextType >= 0 && myViewSelector->count() > myDefaultContextType)
  {
    // using default type during the first setting the external context
    myViewSelector->setCurrentIndex(myDefaultContextType);
    myDefaultContextType = -1;
  }
}

// =======================================================================
// function : CurrentContextType
// purpose :
// =======================================================================
View_ContextType View_ToolBar::CurrentContextType() const
{
  return (View_ContextType)myViewSelector->currentIndex();
}

// =======================================================================
// function : SetCurrentContext
// purpose :
// =======================================================================
void View_ToolBar::SetCurrentContextType(View_ContextType theType)
{
  myViewSelector->setCurrentIndex((int)theType);
  emit contextChanged();
}

// =======================================================================
// function : CurrentContext
// purpose :
// =======================================================================
Handle(AIS_InteractiveContext) View_ToolBar::CurrentContext() const
{
  View_ContextType aCurrentType = (View_ContextType)myViewSelector->currentIndex();
  return myViewContexts[aCurrentType];
}

// =======================================================================
// function : IsActionChecked
// purpose :
// =======================================================================
bool View_ToolBar::IsActionChecked(const int theActionId) const
{
  View_ToolActionType anActionId = (View_ToolActionType)theActionId;
  return myActionsMap.contains(anActionId) ? myActionsMap[anActionId]->isChecked() : false;
}

// =======================================================================
// function : SaveState
// purpose :
// =======================================================================
void View_ToolBar::SaveState(View_ToolBar*           theToolBar,
                             QMap<QString, QString>& theItems,
                             const QString&          thePrefix)
{
  theItems[thePrefix + "context_type"] = QString::number(theToolBar->CurrentContextType());
}

// =======================================================================
// function : RestoreState
// purpose :
// =======================================================================
bool View_ToolBar::RestoreState(View_ToolBar*  theToolBar,
                                const QString& theKey,
                                const QString& theValue,
                                const QString& thePrefix)
{
  if (theKey == thePrefix + "context_type")
  {
    theToolBar->SetDefaultContextType((View_ContextType)theValue.toInt());
  }
  else
    return false;

  return true;
}

// =======================================================================
// function : onActionClicked
// purpose :
// =======================================================================
void View_ToolBar::onActionClicked()
{
  int          anId       = -1;
  QToolButton* aSenderBtn = (QToolButton*)sender();

  for (QMap<View_ToolActionType, QToolButton*>::ConstIterator anActionsIt   = myActionsMap.begin(),
                                                              anActionsLast = myActionsMap.end();
       anActionsIt != anActionsLast;
       anActionsIt++)
  {
    if (anActionsIt.value() == aSenderBtn)
    {
      anId = anActionsIt.key();
      break;
    }
  }
  if (anId != -1)
    emit actionClicked(anId);

  if (anId == View_ToolActionType_KeepViewId || anId == View_ToolActionType_KeepViewOffId)
  {
    if (anId == View_ToolActionType_KeepViewId)
      myActionsMap[View_ToolActionType_KeepViewOffId]->setChecked(!aSenderBtn->isChecked());
    else
      myActionsMap[View_ToolActionType_KeepViewId]->setChecked(!aSenderBtn->isChecked());
  }
}