static inline SHPObject* apply(Polygon const& polygon)
{
int const n = geometry::num_points(polygon);
int const ring_count = 1 + geometry::num_interior_rings(polygon);
boost::scoped_array<double> x(new double[n]);
boost::scoped_array<double> y(new double[n]);
boost::scoped_array<int> parts(new int[ring_count]);
int ring = 0;
int offset = 0;
process_polygon(polygon, x.get(), y.get(), parts.get(), offset, ring);
return ::SHPCreateObject(SHPT_POLYGON, -1, ring_count, parts.get(), NULL,
n, x.get(), y.get(), NULL, NULL);
}
// 鼠标按下捕获器
void CDrawWin::mousePressEvent(QMouseEvent* event)
{
switch(m_curMenuStatus) {
case MENU_STATUS_NONE:
{
qDebug() << __func__ << " " << __LINE__ ;
bool bHit,bCtrlHit;
m_curShape = HitTest(event,bHit,bCtrlHit);
if(m_curShape != NULL) {
if(bCtrlHit) {
QApplication::setOverrideCursor(Qt::PointingHandCursor);
}else {
if(bHit) {
QApplication::setOverrideCursor(Qt::ClosedHandCursor);
}
}
m_curShape->mousePressEvent(event);
}
}
break;
case MENU_STATUS_LINE:
{
process_line(event);
}
break;
case MENU_STATUS_CIRCLE:
{
process_circle(event);
}
break;
case MENU_STATUS_RECTANGE:
{
qDebug() << __func__ << " " << __LINE__ ;
process_rectangle(event);
}
break;
case MENU_STATUS_POLYGON:
{
qDebug() << __func__ << " " << __LINE__ ;
process_polygon(event);
}
break;
case MENU_STATUS_ANGLE:
{
process_angle(event);
}
break;
case MENU_STATIS_DEL:
{
bool bHit,bCtrlHit;
m_curShape = HitTest(event,bHit,bCtrlHit);
if(m_curShape != NULL) {
if(m_curShape == m_shapeList[0]) {
QMessageBox msgBox;
msgBox.setText("Can not delete the scale.");
msgBox.exec();
break;
}
if(bHit) {
if(m_curShape == m_shapeList[m_shapeList.size() - 1]) {
m_shapeList.pop_back();
QApplication::setOverrideCursor(Qt::ArrowCursor);
update();
}else {
QVector<CShape*>::iterator it = m_shapeList.begin();
for(;it != m_shapeList.end();it++) {
if((*it) == m_curShape) {
m_shapeList.erase(it);
QApplication::setOverrideCursor(Qt::ArrowCursor);
update();
}
}
}
}
}
}
break;
}
}