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/** Raster pipe */
class QgsRasterPipe
{
%TypeHeaderCode
#include <qgsrasterpipe.h>
#include <qgsrasterresamplefilter.h>
#include <qgsrasterprojector.h>
%End
public:
// Role of known interfaces
enum Role
{
UnknownRole,
ProviderRole,
RendererRole,
BrightnessRole,
ResamplerRole,
ProjectorRole,
NullerRole,
HueSaturationRole,
};
QgsRasterPipe();
//made private for python bindings
//QgsRasterPipe( const QgsRasterPipe& thePipe );
~QgsRasterPipe();
/** Try to insert interface at specified index and connect
* if connection would fail, the interface is not inserted and false is returned */
bool insert( int idx, QgsRasterInterface* theInterface /Transfer/ );
%MethodCode
sipRes = sipCpp->insert( a0, a1 );
if( !sipRes )
{
// if insertion failed transfer ownership back to python
PyObject *o = sipGetPyObject( a1, sipType_QgsRasterInterface );
if( o )
sipTransferBreak( o );
}
%End
/** Try to replace interface at specified index and connect
* if connection would fail, the interface is not inserted and false is returned */
bool replace( int idx, QgsRasterInterface* theInterface /Transfer/ );
/** Insert a new known interface in default place or replace interface of the same
* role if it already exists. Known interfaces are: QgsRasterDataProvider,
* QgsRasterRenderer, QgsRasterResampleFilter, QgsRasterProjector and their
* subclasses. For unknown interfaces it mus be explicitly specified position
* where it should be inserted using insert() method.
*/
bool set( QgsRasterInterface * theInterface /Transfer/ );
/** Remove and delete interface at given index if possible */
bool remove( int idx );
/** Remove and delete interface from pipe if possible */
bool remove( QgsRasterInterface * theInterface );
int size() const;
QgsRasterInterface * at( int idx ) const;
QgsRasterInterface * last() const;
/** Set interface at index on/off
* Returns true on success */
bool setOn( int idx, bool on );
/** Test if interface at index may be swithed on/off */
bool canSetOn( int idx, bool on );
// Getters for special types of interfaces
QgsRasterDataProvider * provider() const;
QgsRasterRenderer * renderer() const;
QgsRasterResampleFilter * resampleFilter() const;
QgsBrightnessContrastFilter * brightnessFilter() const;
QgsHueSaturationFilter * hueSaturationFilter() const;
QgsRasterProjector * projector() const;
QgsRasterNuller * nuller() const;
private:
QgsRasterPipe( const QgsRasterPipe& thePipe );
};
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