2. next , we will build command support for icon items

2. we will build other functions later

2. Add a pixmap geo graphics item, for future new features.

the map will be refreshed when items deleted from scene.

2. add OCX interface to set local cache path and tile expire value.
Signed-off-by: goldenhawking <goldenhawking@163.com>

2. set 3 method, perpare for call_func.
Signed-off-by: goldenhawking <goldenhawking@163.com>

Merge branch 'develop' of ssh://goldenhawking@127.0.0.1:29418/gis/osm.planet/qtv.planet.git into develop

2. Add a Item clicked event, for  geomarker.

2.make a copy painting , sloved +180 -180 polygon drawing problem.

pen and brush now are  independent with shapes.