void QgsCompoundColorWidget::mouseReleaseEvent( QMouseEvent *e )
{
if ( mPickingColor )
{
//end color picking operation by sampling the color under cursor
stopPicking( e->globalPos() );
e->accept();
return;
}
QWidget::mouseReleaseEvent( e );
}
void QgsCompoundColorWidget::keyPressEvent( QKeyEvent *e )
{
if ( !mPickingColor )
{
//if not picking a color, use default tool button behavior
QWidget::keyPressEvent( e );
return;
}
//cancel picking, sampling the color if space was pressed
stopPicking( QCursor::pos(), e->key() == Qt::Key_Space );
}
void mySelect(GLdouble x, GLdouble y, int width, int height) { // mouse curser in window x,y; window width,hight
// http://www.lighthouse3d.com/opengl/picking/index.php?openglway3
GLint view[4];
glSelectBuffer(64, buff);
glRenderMode(GL_SELECT);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glGetIntegerv(GL_VIEWPORT,view);
gluPickMatrix(x,((GLdouble)height)-y,30.0f,30.0f,view);
gluPerspective (45.0f, (GLfloat)(width)/(GLfloat)(height), // Calculate The Aspect Ratio Of The Window
1.0f, 100.0f);
glMatrixMode (GL_MODELVIEW); // Select The Modelview Matrix
DrawS();
stopPicking();
glLoadIdentity ();
glRenderMode(GL_RENDER);
// stopPicking();
}
