SimpleEarth/src/PathTool.cpp at master · MAPSWorks/SimpleEarth · GitHub

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* The Simple Earth Project

* Author: Hector Mendoza, hector.mendoza@huesoftllc.com

* This file is part of the Simple Earth Project.

* The Simple Earth Project is free software: you can redistribute it

* and/or modify it under the terms of the GNU Lesser General Public

* License as published by the Free Software Foundation, either version

* 3 of the License, or (at your option) any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General Public

* License along with this program. If not, see

* <http://www.gnu.org/licenses/>.

#include <QtOpenGL>

#include "PathTool.h"

#include "PathRenderer.h"

#include "WorldObjectManager.h"

#include "Utilities.h"

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* Constructor. Calls parent constructor with given parameter values and

* initializes attributes.

* @param toolButton Handle to corresponding toolbar button

* @param dialog Handle to corresponding dialog

PathTool::PathTool(QToolButton* toolButton, QDialog* dialog) : Tool("Path", toolButton, dialog)

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

mCurrentNumberOfPoints = 0;

mClickCordinates.x = 0;

mClickCordinates.y = 0;

mAddPoint = false;

mColor.red = 1.0f;

mColor.green = 1.0f;

mColor.blue = 1.0f;

mColor.alpha = 1.0f;

}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* Destructor.

PathTool::~PathTool()

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* This method is called to initialize attributes for path tool rendering.

void PathTool::initialize()

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

mCurrentNumberOfPoints = 0;

mAddPoint = false;

}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* OVERRIDE FOR Tool. Builds the geometry to render a temporary path for

* the tool.

void PathTool::render()

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

//check if we need a projection computation because we are adding a point

if (mAddPoint && mCurrentNumberOfPoints < MAX_NUMBER_OF_POINTS)

{

//convert click coordinates and add point to our list

mPoints[mCurrentNumberOfPoints] = Utilities::screenToWorld(mClickCordinates);

mAddPoint = false;

mCurrentNumberOfPoints++;

}

//render path

glColor4f(mColor.red, mColor.green, mColor.blue, 1.0f);

glDisable(GL_DEPTH_TEST);

glLineWidth(2.0f);

glBegin(GL_LINE_STRIP);

for (int i = 0; i < mCurrentNumberOfPoints; i++)

{

glVertex3f(mPoints[i].x, mPoints[i].y, mPoints[i].z);

}

glEnd();

glLineWidth(1.0f);

glEnable(GL_DEPTH_TEST);

}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* Sets the name for this path.

* @param name New name for this path

void PathTool::setName(const QString& name)

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

mName = name;

}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* Sets the color for this path.

* @param color New color for this path

void PathTool::setColor(const SimpleColor& color)

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

mColor = color;

}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* Adds current path to WorldObjectManager's list. Note how we copy all the local

* to a new instance of a path world object.

bool PathTool::addCurrent()

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

bool returnValue = true;

//only add path if it has more than 1 point

if (mCurrentNumberOfPoints > 1)

{

WorldObject* worldObject = new WorldObject();

worldObject->setName(mName);

worldObject->setColor(mColor);

worldObject->setGroup(WorldObject::PATH);

//instantiate path renderer and associate it with world object

PathRenderer* pathRenderer = new PathRenderer();

for (int i = 0; i < mCurrentNumberOfPoints; i++)

{

pathRenderer->addPoint(mPoints[i]);

}

worldObject->setMeshRenderer(pathRenderer);

//if object already exists (cannot add) perform cleanup

if (!WorldObjectManager::getInstance()->addWorldObject(worldObject))

{

//note: the path renderer that we associated with this world

//object will get deleted on the world object's destructor

delete worldObject;

returnValue = false;

}

return returnValue;

}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/**

* Called on a right mouse button release event when the path tools is selected.

* @param event Qt's mouse event

void PathTool::onMouseReleaseEvent(QMouseEvent* event)

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

{

mClickCordinates.x = event->x();

mClickCordinates.y = event->y();

mAddPoint = true;

}

SimpleEarth/src/PathTool.cpp at master · MAPSWorks/SimpleEarth · GitHub

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