本文整理汇总了C++中GLWidget::setViewport方法的典型用法代码示例。如果您正苦于以下问题：C++ GLWidget::setViewport方法的具体用法？C++ GLWidget::setViewport怎么用？C++ GLWidget::setViewport使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GLWidget的用法示例。
在下文中一共展示了GLWidget::setViewport方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: readFromFrameBuffer_
bool RayCastRenderer::readFromFrameBuffer_( const GLWidget& glWidget,
const View& view,
const Frustum &frustum,
const RenderBrick& renderBrick,
Vector2i& screenPos )
{
Viewporti pixViewport;
glWidget.setViewport( &view, pixViewport );
Vector2i minPos;
Vector2i maxPos;
renderBrick.getScreenCoordinates( frustum, pixViewport, minPos, maxPos );
const Vector2i texSize = maxPos - minPos;
const eq::fabric::PixelViewport pixelViewPort( minPos[ 0 ], minPos[ 1 ],
texSize[ 0 ], texSize[ 1 ] );
if( !pixelViewPort.hasArea( ) )
return false;
framebufferTempTexturePtr_->copyFromFrameBuffer( GL_RGBA, pixelViewPort );
screenPos = minPos;
return true;
}示例2: QWidget
//.........这里部分代码省略.........
}
else
{
frameHeight = defHeight / rows;
frameWidth = (int)((double)frameHeight * (((double)defWidth)/((double)defHeight)));
}
// Calculate the new canvas size
int realWidth = frameWidth * cols;
int realHeight = frameHeight * rows;
glw->setCanvasSize(QSizeF((double)realWidth,(double)realHeight));*/
// If user gives us a window size, use it - otherwise make it the same as the canvas size
int winWidth = settings.value("win-width",0).toInt();
int winHeight = settings.value("win-height",0).toInt();
// if(winWidth <= 0 || winHeight <= 0)
// resize(realWidth, realHeight);
// else
// resize(winWidth, winHeight);
if(winWidth > 0 && winHeight > 0)
resize(winWidth, winHeight);
// No default window position.
// Only set position if both X and Y are given
int winX = settings.value("win-x",-1).toInt();
int winY = settings.value("win-y",-1).toInt();
if(winX >= 0 && winY >= 0)
move(winX, winY);
//qDebug() << "Layout: "<<cols<<"x"<<rows<<", size:"<<frameWidth<<"x"<<frameHeight;
GLScene *scene = new GLScene();
GLVideoInputDrawable *drw = 0;
// Finally, get down to actually creating the drawables
// // and setting their positions
// for(int i=0; i<numItems; i++)
// {
// // Load the connection string
// QString con = settings.value(tr("input%1").arg(i)).toString();
// if(con.indexOf("=") < 0)
// con = tr("net=%1").arg(con);
//
// qDebug() << "Input "<<i<<": "<<con;
//
// // Create the drawable
// drw = new GLVideoInputDrawable();
// drw->setVideoConnection(con);
//
// // Calculate the position in the grid
// double frac = (double)i / (double)cols;
// int row = (int)frac;
// int col = (int)((frac - row) * cols);
//
// // Translate to "pixels"
// int x = col * frameWidth;
// int y = row * frameHeight;
//
// // Set the position
// drw->setRect(QRectF(x,y,frameWidth,frameHeight));
//
// // Finally, add the drawable
// scene->addDrawable(drw);
// }
int frameWidth = 1000, frameHeight = 750, x=0, y=0;
drw = new GLVideoInputDrawable();
drw->setVideoInput("test:1");///dev/video1");
drw->setRect(QRectF(x,y,frameWidth,frameHeight));
VideoDisplayOptionWidget *widget = new VideoDisplayOptionWidget(drw);
widget->show();
// Finally, add the drawable
scene->addDrawable(drw);
drw = new GLVideoInputDrawable();
drw->setVideoInput("test:1");///dev/video1");
drw->setRect(QRectF(x + frameWidth,y,frameWidth,frameHeight));
scene->addDrawable(drw);
// Add the drawables to the GLWidget
scene->setGLWidget(glw);
glw->setViewport(QRect(0,0,2000, 750));
// GLSpinnerDrawable *spinner = new GLSpinnerDrawable();;
// spinner->setCycleDuration(1);
// int spinSize = 28;
// QRectF spinnerRect(10,10, spinSize, spinSize);
// spinner->setRect(spinnerRect);
// // spinner->setFlipVertical(true);
// // spinner->setFlipHorizontal(true);
// spinner->setZIndex(10.);
// spinner->start();
//
// glw->addDrawable(spinner);
}