/usr/include/qgis/qgsrasterpipe.h is in libqgis-dev 2.0.1-2build2.
This file is owned by root:root, with mode 0o644.
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qgsrasterpipe.h - Internal raster processing modules interface
--------------------------------------
Date : Jun 21, 2012
Copyright : (C) 2012 by Radim Blazek
email : radim dot blazek at gmail dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSRASTERPIPE_H
#define QGSRASTERPIPE_H
#include <QImage>
#include <QObject>
#include "qgsbrightnesscontrastfilter.h"
#include "qgshuesaturationfilter.h"
#include "qgsrasterdataprovider.h"
#include "qgsrasterinterface.h"
#include "qgsrasternuller.h"
#include "qgsrasterprojector.h"
#include "qgsrasterrenderer.h"
#include "qgsrasterresamplefilter.h"
#include "qgsrectangle.h"
#if defined(Q_OS_WIN)
#undef interface
#endif
/** \ingroup core
* Base class for processing modules.
*/
class CORE_EXPORT QgsRasterPipe
{
public:
// Role of known interfaces
enum Role
{
UnknownRole = 0,
ProviderRole = 1,
RendererRole = 2,
BrightnessRole = 3,
ResamplerRole = 4,
ProjectorRole = 5,
NullerRole = 6,
HueSaturationRole = 7
};
QgsRasterPipe();
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 );
/** 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 );
/** 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 );
/** 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 { return mInterfaces.size(); }
QgsRasterInterface * at( int idx ) const { return mInterfaces.at( idx ); }
QgsRasterInterface * last() const { return mInterfaces.last(); }
/** 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:
/** Get known parent type_info of interface parent */
Role interfaceRole( QgsRasterInterface * iface ) const;
// Interfaces in pipe, the first is always provider
QVector<QgsRasterInterface*> mInterfaces;
QMap<Role, int> mRoleMap;
// Set role in mRoleMap
void setRole( QgsRasterInterface * theInterface, int idx );
// Unset role in mRoleMap
void unsetRole( QgsRasterInterface * theInterface );
// Check if index is in bounds
bool checkBounds( int idx ) const;
/** Get known interface by role */
QgsRasterInterface * interface( Role role ) const;
/** \brief Try to connect interfaces in pipe and to the provider at beginning.
Returns true if connected or false if connection failed */
bool connect( QVector<QgsRasterInterface*> theInterfaces );
};
#endif
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