[Qgis-community-team] HI

[Sahana BS]

Hi.

      i am using qgis_0.11.0, in windows i have installed.  i have created a
plugin but the problem is i need to draw something on the screen  by using
this plugin but i am not getting here is my code.can anybody please help
me............... i am new to this.............



#include "qgspointconverterplugin.h"


#ifdef WIN32
#define QGISEXTERN extern "C" __declspec( dllexport )
#else
#define QGISEXTERN extern "C"
#endif
QgsPointConverterPlugin::QgsPointConverterPlugin(QgisInterface* iface):
mIface(iface), qGisInterface( iface)
{
}
QgsPointConverterPlugin::~QgsPointConverterPlugin()
{
}
void QgsPointConverterPlugin::initGui()
{
  // myQActionPointer = new QAction( QIcon( ":/scale_bar.png" ), tr( "&Scale
Bar" ), this );
  mAction = new QAction(tr("&Convert to point"), this);
  connect(mAction, SIGNAL(activated()), this, SLOT( run() ) );
  connect( qGisInterface->getMapCanvas(), SIGNAL( renderComplete( QPainter *
) ), this, SLOT( render(QPainter * )) );

  mIface->addToolBarIcon(mAction);
  mIface->addPluginMenu(tr("&Convert to point"), mAction);
}
void QgsPointConverterPlugin::unload()
{
  mIface->removeToolBarIcon(mAction);
  mIface->removePluginMenu(tr("&Convert to point"), mAction);
  delete mAction;
}
//void QgsPointConverterPlugin::refreshCanvas()
//{
//  qGisInterface->mapCanvas()->refresh();
//}

void QgsPointConverterPlugin::run()
{
  /*QgsScaleBarPluginGui *myPluginGui = new QgsScaleBarPluginGui(
qGisInterface->mainWindow(), QgisGui::ModalDialogFlags );
  myPluginGui->setAttribute( Qt::WA_DeleteOnClose );
  myPluginGui->setPreferredSize( mPreferredSize );
  myPluginGui->setSnapping( mSnapping );
  myPluginGui->setPlacementLabels( mPlacementLabels );
  myPluginGui->setPlacement( mPlacementIndex );
  myPluginGui->setEnabled( mEnabled );
  myPluginGui->setStyleLabels( mStyleLabels );
  myPluginGui->setStyle( mStyleIndex );
  myPluginGui->setColour( mColour );*/

  /*connect( myPluginGui, SIGNAL( changePreferredSize( int ) ), this, SLOT(
setPreferredSize( int ) ) );
  connect( myPluginGui, SIGNAL( changeSnapping( bool ) ), this, SLOT(
setSnapping( bool ) ) );
  connect( myPluginGui, SIGNAL( changePlacement( int ) ), this, SLOT(
setPlacement( int ) ) );
  connect( myPluginGui, SIGNAL( changeEnabled( bool ) ), this, SLOT(
setEnabled( bool ) ) );
  connect( myPluginGui, SIGNAL( changeStyle( int ) ), this, SLOT( setStyle(
int ) ) );
  connect( myPluginGui, SIGNAL( changeColour( QColor ) ), this, SLOT(
setColour( QColor ) ) );
  connect( myPluginGui, SIGNAL( refreshCanvas() ), this, SLOT(
refreshCanvas() ) );
  myPluginGui->show();*/
}
void QgsPointConverterPlugin::render(QPainter *painter)//
{

  painter->setRenderHint(QPainter::Antialiasing, true);
  painter->setPen(QPen(Qt::black, 12, Qt::DashDotLine, Qt::RoundCap));
  painter->setBrush(QBrush(Qt::green, Qt::SolidPattern));
  painter->drawEllipse(10, 10, 100, 140);


}

QGISEXTERN QgisPlugin* classFactory(QgisInterface* iface)
{
  return new QgsPointConverterPlugin(iface);
}

QGISEXTERN QString name()
{
  return "point converter plugin";
}
QGISEXTERN QString description()
{
  return "A plugin that converts vector layers to delimited text point
files";
}
QGISEXTERN QString version()
{
  return "0.00001";
}


// Return the type (either UI or MapLayer plugin)
QGISEXTERN int type()
{
  return QgisPlugin::UI;
}
// Delete ourself
QGISEXTERN void unload(QgisPlugin* theQgsPointConverterPluginPointer)
{

  //disconnect( qGisInterface->mapCanvas(), SIGNAL( renderComplete( QPainter
* ) ),
              //this, SLOT( renderScaleBar( QPainter * ) ) );
 // refreshCanvas();

  //delete myQActionPointer;
  delete theQgsPointConverterPluginPointer;
}
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