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///*=====================================================================
//
//QGroundControl Open Source Ground Control Station
//
//(c) 2009, 2010 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
//
//This file is part of the QGROUNDCONTROL project
//
// QGROUNDCONTROL is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// QGROUNDCONTROL 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
//
//======================================================================*/
/**
* @file
* @brief Definition of the class ImageWindowGeode.
*
* @author Lionel Heng <hengli@student.ethz.ch>
*
*/
#include "ImageWindowGeode.h"
ImageWindowGeode::ImageWindowGeode()
: mBorder(5)
, mImage(new osg::Image)
{
}
void
ImageWindowGeode::init(const QString& caption, const osg::Vec4& backgroundColor,
osg::ref_ptr<osgText::Font>& font)
{
// image
osg::ref_ptr<osg::Geometry> imageGeometry = new osg::Geometry;
mImageVertices = new osg::Vec3Array(4);
osg::ref_ptr<osg::Vec2Array> textureCoords = new osg::Vec2Array;
textureCoords->push_back(osg::Vec2(0.0f, 1.0f));
textureCoords->push_back(osg::Vec2(1.0f, 1.0f));
textureCoords->push_back(osg::Vec2(1.0f, 0.0f));
textureCoords->push_back(osg::Vec2(0.0f, 0.0f));
osg::ref_ptr<osg::Vec4Array> imageColors(new osg::Vec4Array);
imageColors->push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
imageGeometry->setColorArray(imageColors);
imageGeometry->setColorBinding(osg::Geometry::BIND_OVERALL);
imageGeometry->setVertexArray(mImageVertices);
imageGeometry->setTexCoordArray(0, textureCoords);
imageGeometry->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POLYGON,
0, mImageVertices->size()));
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
texture->setDataVariance(osg::Object::DYNAMIC);
texture->setImage(mImage);
texture->setResizeNonPowerOfTwoHint(false);
imageGeometry->getOrCreateStateSet()->
setTextureAttributeAndModes(0, texture, osg::StateAttribute::ON);
imageGeometry->setUseDisplayList(false);
// background
osg::ref_ptr<osg::Geometry> backgroundGeometry = new osg::Geometry;
mBackgroundVertices = new osg::Vec3Array(4);
backgroundGeometry->setVertexArray(mBackgroundVertices);
backgroundGeometry->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POLYGON,
0, mBackgroundVertices->size()));
osg::ref_ptr<osg::Vec4Array> backgroundColors(new osg::Vec4Array);
backgroundColors->push_back(backgroundColor);
backgroundGeometry->setColorArray(backgroundColors);
backgroundGeometry->setColorBinding(osg::Geometry::BIND_OVERALL);
backgroundGeometry->setUseDisplayList(false);
// caption
mText = new osgText::Text;
mText->setText(caption.toStdString().c_str());
mText->setCharacterSize(11);
mText->setFont(font);
mText->setAxisAlignment(osgText::Text::SCREEN);
mText->setColor(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
addDrawable(imageGeometry);
addDrawable(backgroundGeometry);
addDrawable(mText);
setAttributes(0, 0, 0, 0);
}
void
ImageWindowGeode::setAttributes(int x, int y, int width, int height)
{
int imageWidth = width - mBorder * 2;
int imageHeight = height - mBorder * 2 - 15;
int imageXPosition = x + mBorder;
int imageYPosition = y + mBorder;
mImageVertices->at(0) = osg::Vec3(imageXPosition, imageYPosition, 0);
mImageVertices->at(1) = osg::Vec3(imageXPosition + imageWidth, imageYPosition, 0);
mImageVertices->at(2) = osg::Vec3(imageXPosition + imageWidth, imageYPosition + imageHeight, 0);
mImageVertices->at(3) = osg::Vec3(imageXPosition, imageYPosition + imageHeight, 0);
mText->setPosition(osg::Vec3(imageXPosition, imageYPosition + imageHeight + 5, 0));
mBackgroundVertices->at(0) = osg::Vec3(x, y, -1);
mBackgroundVertices->at(1) = osg::Vec3(x + width, y, -1);
mBackgroundVertices->at(2) = osg::Vec3(x + width, y + height, -1);
mBackgroundVertices->at(3) = osg::Vec3(x, y + height, -1);
}
osg::ref_ptr<osg::Image>&
ImageWindowGeode::image(void)
{
return mImage;
}