97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/*
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* Copyright (C) 2012 Open Source Robotics Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <sstream>
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#include <string>
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#include <vector>
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#include "gazebo/gui/building/BuildingEditorEvents.hh"
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#include "gazebo/gui/building/ScaleWidget.hh"
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namespace gazebo
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{
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namespace gui
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{
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/// \internal
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/// \brief Private data for the ScaleWidget class
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class ScaleWidgetPrivate
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{
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/// \brief Text displaying the scale.
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public: std::string scaleText;
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/// \brief A list of gui editor events connected to this widget.
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public: std::vector<event::ConnectionPtr> connections;
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};
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}
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}
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using namespace gazebo;
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using namespace gui;
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//////////////////////////////////////////////////
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ScaleWidget::ScaleWidget(QWidget *_parent)
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: QWidget(_parent), dataPtr(new ScaleWidgetPrivate)
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{
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this->setObjectName("scaleWidget");
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this->dataPtr->scaleText = "1.00 m";
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this->setAttribute(Qt::WA_TransparentForMouseEvents);
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this->dataPtr->connections.push_back(
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gui::editor::Events::ConnectChangeBuildingEditorZoom(
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std::bind(&ScaleWidget::OnChangeZoom, this, std::placeholders::_1)));
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}
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//////////////////////////////////////////////////
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ScaleWidget::~ScaleWidget()
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{
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this->dataPtr->connections.clear();
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}
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//////////////////////////////////////////////////
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void ScaleWidget::paintEvent(QPaintEvent *)
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{
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QPoint topLeft(0, 20);
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QPoint bottomRight(100, 40);
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QPointF midPoint = (topLeft + bottomRight)/2;
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QPainter painter(this);
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QPen rulerPen;
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rulerPen.setColor(Qt::gray);
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rulerPen.setWidth(3);
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painter.setPen(rulerPen);
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painter.drawLine(topLeft.x(), midPoint.y(), bottomRight.x(), midPoint.y());
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painter.drawLine(topLeft.x(), topLeft.y(), topLeft.x(), bottomRight.y());
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painter.drawLine(bottomRight.x(), topLeft.y(), bottomRight.x(),
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bottomRight.y());
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QPoint textTopLeft(topLeft.x(), 2*topLeft.y() - bottomRight.y());
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QPoint textBottomRight(bottomRight.x(), textTopLeft.y() +
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(bottomRight.y() - topLeft.y()));
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QRect rulerRect(textTopLeft, textBottomRight);
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painter.drawText(rulerRect, Qt::AlignHCenter,
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QString(this->dataPtr->scaleText.c_str()));
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}
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//////////////////////////////////////////////////
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void ScaleWidget::OnChangeZoom(const double _zoomFactor)
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{
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std::stringstream str;
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double places = pow(10.0, 2);
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str << round((1.0/_zoomFactor) * places) / places << " m";
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this->dataPtr->scaleText = str.str();
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}
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