status_property.cpp

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/*
 * Copyright (c) 2012, Willow Garage, Inc.
 * All rights reserved.
 *
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 *
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 *       notice, this list of conditions and the following disclaimer.
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 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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#include <QApplication>
#include <QColor>
#include <QPalette>

#include "rviz/properties/property_tree_model.h"

#include "rviz/properties/status_property.h"
#include "rviz/load_resource.h"

namespace rviz
{
QColor StatusProperty::status_colors_[3] = {QColor(), QColor(192, 128, 0), QColor(192, 32, 32)};
QString StatusProperty::status_words_[3] = {"Ok", "Warn", "Error"};

StatusProperty::StatusProperty(const QString& name, const QString& text, Level level, Property* parent)
  : Property(name, text, text, parent), level_(level)
{
  setShouldBeSaved(false);
  status_icons_[0] = loadPixmap("package://rviz/icons/ok.png");
  status_icons_[1] = loadPixmap("package://rviz/icons/warning.png");
  status_icons_[2] = loadPixmap("package://rviz/icons/error.png");

  if (!status_colors_[0].isValid()) // initialize default text color once
    status_colors_[0] = QApplication::palette().color(QPalette::Text);
}

bool StatusProperty::setValue(const QVariant& new_value)
{
  setDescription(new_value.toString());
  return Property::setValue(new_value);
}

QVariant StatusProperty::getViewData(int column, int role) const
{
  if ((getViewFlags(column) & Qt::ItemIsEnabled) && column == 0 && role == Qt::ForegroundRole)
  {
    return statusColor(level_);
  }
  if (column == 0 && role == Qt::DecorationRole)
  {
    return statusIcon(level_);
  }
  return Property::getViewData(column, role);
}

Qt::ItemFlags StatusProperty::getViewFlags(int column) const
{
  return Property::getViewFlags(column);
}

// static function
QColor StatusProperty::statusColor(Level level)
{
  return status_colors_[(int)level];
}

// static function
QIcon StatusProperty::statusIcon(Level level) const
{
  return status_icons_[level];
}

// static function
QString StatusProperty::statusWord(Level level)
{
  return status_words_[(int)level];
}


void StatusProperty::setLevel(Level level)
{
  if (level_ != level)
  {
    level_ = level;
    if (model_)
      model_->emitDataChanged(this);
  }
}

} // end namespace rviz