Re: [osg-users] MousepressEvent not able to capture from osg::Viewer by Qt
Thats right Robert. Thanks a lot for your suggestions I appreciate it.
Thanks Sujan
On Wed, May 8, 2013 at 5:40 PM, Robert Milharcic <
robert.milhar...@ib-caddy.si> wrote:
> On 8.5.2013 10:16, Sujan Dasmahapatra wrote:
>
> Thanks Robert. It is working fine...
>
> On the left mouse press I am showing a message using QMessagBox. But on
> the middle mouse press was having pan and right mouse press was having zoom
> in zoom out. How can I retain those functionalities. With this these
> functionalities are gone.
>
> void CSGraphicsView::mousePressEvent(QMouseEvent *e)
> {
> if(e->button()==Qt::LeftButton)
> {
> QMessageBox msg;
> msg.setText("Mouse pressed");
> msg.exec();
> }
> }
>
> Call base class implementation in a case where you need to retain
> original functionality:
>
> void CSGraphicsView::mousePressEvent(QMouseEvent *e)
> {
> if(e->button()==Qt::LeftButton)
> {
> QMessageBox msg;
> msg.setText("Mouse pressed");
> msg.exec();
> }
> else
> GLWidget::mousePressEvent(e);
> }
>
> Also, calling frame on paintEvent might not be enough. You should also
> call frame on every user input, on all mouse and keyboard events for
> example... or you can mount a QTimer and make it call frame at some
> interval.
>
> Robert Milharcic
>
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>
>
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Thanks & Regards
Sujan
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Re: [osg-users] MousepressEvent not able to capture from osg::Viewer by Qt
On 8.5.2013 10:16, Sujan Dasmahapatra wrote:
Thanks Robert. It is working fine...
On the left mouse press I am showing a message using QMessagBox. But
on the middle mouse press was having pan and right mouse press was
having zoom in zoom out. How can I retain those functionalities. With
this these functionalities are gone.
void CSGraphicsView::mousePressEvent(QMouseEvent *e)
{
if(e->button()==Qt::LeftButton)
{
QMessageBox msg;
msg.setText("Mouse pressed");
msg.exec();
}
}
Call base class implementation in a case where you need to retain
original functionality:
void CSGraphicsView::mousePressEvent(QMouseEvent *e)
{
if(e->button()==Qt::LeftButton)
{
QMessageBox msg;
msg.setText("Mouse pressed");
msg.exec();
}
else
GLWidget::mousePressEvent(e);
}
Also, calling frame on paintEvent might not be enough. You should also
call frame on every user input, on all mouse and keyboard events for
example... or you can mount a QTimer and make it call frame at some
interval.
Robert Milharcic
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Re: [osg-users] MousepressEvent not able to capture from osg::Viewer by Qt
Thanks Robert. It is working fine...
On the left mouse press I am showing a message using QMessagBox. But on the
middle mouse press was having pan and right mouse press was having zoom in
zoom out. How can I retain those functionalities. With this these
functionalities are gone.
void CSGraphicsView::mousePressEvent(QMouseEvent *e)
{
if(e->button()==Qt::LeftButton)
{
QMessageBox msg;
msg.setText("Mouse pressed");
msg.exec();
}
}
On Wed, May 8, 2013 at 3:59 PM, Robert Milharcic <
robert.milhar...@ib-caddy.si> wrote:
> On 8.5.2013 7:04, Sujan Dasmahapatra wrote:
>
>> I am trying to implement a mouse press event with QT and OSG but unable
>> to do it. Pls help.
>>
>> Below is my ViewerWidget class which is derived from QWidget and
>> osg::CompositeViewer..In the constructor I got gView which is a
>> osg::GLWidget, I am trying override mousePressEvent but when I click
>> message not coming. What I am doing wrong pls help..
>>
>> [snip]
>>
>>
>> osg::Camera* ViewerWidget::createCamera( int x, int y, int w, int h,
>> const std::string& name, bool windowDecoration )
>> {
>> osg::DisplaySettings* ds = osg::DisplaySettings::**
>> instance().get();
>> osg::ref_ptr traits = new
>> osg::GraphicsContext::Traits;
>> traits->windowName = name;
>> traits->windowDecoration = windowDecoration;
>> traits->x = x;
>> traits->y = y;
>> traits->width = w;
>> traits->height = h;
>> traits->doubleBuffer = true;
>> traits->alpha = ds->getMinimumNumAlphaBits();
>> traits->stencil = ds->getMinimumNumStencilBits()**;
>> traits->sampleBuffers = ds->getMultiSamples();
>> traits->samples = ds->getNumMultiSamples();
>> osg::ref_ptr camera = new osg::Camera;
>> camera->setGraphicsContext( new
>> osgQt::GraphicsWindowQt(**traits.get())
>> );
>> camera->setClearColor( osg::Vec4(0.2, 0.2, 0.6, 1.0) );
>> camera->setViewport( new osg::Viewport(0, 0, traits->width,
>> traits->height) );
>> camera->**setProjectionMatrixAsPerspecti**ve(
>> 30.0f, static_cast(traits->**
>> width)/static_cast(**traits->height), 1.0f, 1.0f );
>> return camera.release();
>> }
>>
>> I don't know why this code didn't crash, I think it should. Anyway, you
> should create an instance of the CSGraphicsView somewhere within
> createCamera:
>
> CSGraphicsView* gView = new CSGraphicsView;
> gView->setGeometry(x, y, w, h);
> traits->inheritedWindowData = new osgQt::GraphicsWindowQt::**WindowData(
> gView );
>
> ...
> or you can pass an instance of the CSGraphicsView to the
> osgQt::GraphicsWindowQt constructor.
>
>
> Robert Milharcic
> __**_
> osg-users mailing list
> osg-users@lists.**openscenegraph.org
> http://lists.openscenegraph.**org/listinfo.cgi/osg-users-**
> openscenegraph.org
>
--
Thanks & Regards
Sujan
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Re: [osg-users] MousepressEvent not able to capture from osg::Viewer by Qt
On 8.5.2013 7:04, Sujan Dasmahapatra wrote:
I am trying to implement a mouse press event with QT and OSG but
unable to do it. Pls help.
Below is my ViewerWidget class which is derived from QWidget and
osg::CompositeViewer..In the constructor I got gView which is a
osg::GLWidget, I am trying override mousePressEvent but when I click
message not coming. What I am doing wrong pls help..
[snip]
osg::Camera* ViewerWidget::createCamera( int x, int y, int w, int h,
const std::string& name, bool windowDecoration )
{
osg::DisplaySettings* ds = osg::DisplaySettings::instance().get();
osg::ref_ptr traits = new
osg::GraphicsContext::Traits;
traits->windowName = name;
traits->windowDecoration = windowDecoration;
traits->x = x;
traits->y = y;
traits->width = w;
traits->height = h;
traits->doubleBuffer = true;
traits->alpha = ds->getMinimumNumAlphaBits();
traits->stencil = ds->getMinimumNumStencilBits();
traits->sampleBuffers = ds->getMultiSamples();
traits->samples = ds->getNumMultiSamples();
osg::ref_ptr camera = new osg::Camera;
camera->setGraphicsContext( new
osgQt::GraphicsWindowQt(traits.get()) );
camera->setClearColor( osg::Vec4(0.2, 0.2, 0.6, 1.0) );
camera->setViewport( new osg::Viewport(0, 0, traits->width,
traits->height) );
camera->setProjectionMatrixAsPerspective(
30.0f,
static_cast(traits->width)/static_cast(traits->height), 1.0f,
1.0f );
return camera.release();
}
I don't know why this code didn't crash, I think it should. Anyway, you
should create an instance of the CSGraphicsView somewhere within
createCamera:
CSGraphicsView* gView = new CSGraphicsView;
gView->setGeometry(x, y, w, h);
traits->inheritedWindowData = new osgQt::GraphicsWindowQt::WindowData(
gView );
...
or you can pass an instance of the CSGraphicsView to the
osgQt::GraphicsWindowQt constructor.
Robert Milharcic
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[osg-users] MousepressEvent not able to capture from osg::Viewer by Qt
I am trying to implement a mouse press event with QT and OSG but unable to
do it. Pls help.
Below is my ViewerWidget class which is derived from QWidget and
osg::CompositeViewer..In the constructor I got gView which is a
osg::GLWidget, I am trying override mousePressEvent but when I click
message not coming. What I am doing wrong pls help..
My gView pointer is of class CSGraphicsView as below
/
#ifndef GVIEW_H
#define GVIEW_H
#include
#include
#include
#include
#include
class CSGraphicsView : public osgQt::GLWidget
{
public:
CSGraphicsView(QWidget* parent=0);
~CSGraphicsView();
virtual void mousePressEvent(QMouseEvent *e);
};
#endif // GVIEW_H
//Implementations is
void CSGraphicsView::mousePressEvent(QMouseEvent *e)
{
QMessageBox msg;
msg.setText("Mouse pressed");
msg.exec();
}//But this msg is not coming when i am pressing mouse.
/
/
ViewerWidget::ViewerWidget(osgViewer::ViewerBase::ThreadingModel
threadingModel, osg::Group* scene) : QWidget()
{
setThreadingModel(threadingModel);
gView = static_cast (addViewWidget(
createCamera(0,0,100,100), scene ));
QGridLayout* grid = new QGridLayout;
grid->addWidget( gView, 0, 0 );
setLayout( grid );
connect( &_timer, SIGNAL(timeout()), this, SLOT(update()) );
_timer.start( 10 );
}
osgQt::GLWidget* ViewerWidget::addViewWidget( osg::Camera* camera,
osg::Group* scene )
{
osgViewer::View* view = new osgViewer::View;
view->setCamera( camera );
addView( view );
view->setSceneData( scene );
view->addEventHandler( new osgViewer::StatsHandler );
view->setCameraManipulator( new osgGA::TrackballManipulator );
gw = dynamic_cast (
camera->getGraphicsContext() );
return gw ? gw->getGLWidget() : NULL;
}
osg::Camera* ViewerWidget::createCamera( int x, int y, int w, int h, const
std::string& name, bool windowDecoration )
{
osg::DisplaySettings* ds = osg::DisplaySettings::instance().get();
osg::ref_ptr traits = new
osg::GraphicsContext::Traits;
traits->windowName = name;
traits->windowDecoration = windowDecoration;
traits->x = x;
traits->y = y;
traits->width = w;
traits->height = h;
traits->doubleBuffer = true;
traits->alpha = ds->getMinimumNumAlphaBits();
traits->stencil = ds->getMinimumNumStencilBits();
traits->sampleBuffers = ds->getMultiSamples();
traits->samples = ds->getNumMultiSamples();
osg::ref_ptr camera = new osg::Camera;
camera->setGraphicsContext( new
osgQt::GraphicsWindowQt(traits.get()) );
camera->setClearColor( osg::Vec4(0.2, 0.2, 0.6, 1.0) );
camera->setViewport( new osg::Viewport(0, 0, traits->width,
traits->height) );
camera->setProjectionMatrixAsPerspective(
30.0f,
static_cast(traits->width)/static_cast(traits->height),
1.0f, 1.0f );
return camera.release();
}
void ViewerWidget::paintEvent( QPaintEvent* event )
{
frame();
}
/
--
Thanks & Regards
Sujan
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