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ipath_property.h
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2009-02-06
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#ifndef K3DSDK_IPATH_PROPERTY_H
#define K3DSDK_IPATH_PROPERTY_H
// K-3D
// Copyright (c) 1995-2005, Timothy M. Shead
//
// Contact: tshead@k-3d.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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/** \file
\brief Declares ipath_property, an abstract interface for discovering information about a property that stores filesystem paths
\author Tim Shead (tshead@k-3d.com)
*/
#include "iunknown.h"
#include "signal_system.h"
#include <string>
#include <vector>
namespace k3d
{
/// Abstract interface for properties that represent external filesystem resources (typically used to alter presentation)
class ipath_property :
public virtual iunknown
{
public:
/// Enumerates the mode of the underlying file
typedef enum
{
READ,
WRITE,
} mode_t;
/// Enumerates how the external resource should be referenced - by absolute path, relative path, or inline
typedef enum
{
ABSOLUTE_REFERENCE,
RELATIVE_REFERENCE,
INLINE_REFERENCE
} reference_t;
/// Defines a "pattern filter" that the UI layer can use to filter files using GLOB style syntax
struct pattern_filter
{
pattern_filter()
{
}
pattern_filter(const std::string& Name, const std::string& Pattern) :
name(Name),
pattern(Pattern)
{
}
/// Stores a human-readable name for the pattern
std::string name;
/// Stores s pattern using GLOB syntax
std::string pattern;
};
typedef std::vector<pattern_filter> pattern_filters_t;
/// Returns the path "mode", which indicates whether the path will be used for an input or an output file
virtual const mode_t property_path_mode() = 0;
/// Returns the path "type", used to categorize the purpose of the path and store most-recent-used paths
virtual const std::string property_path_type() = 0;
/// Returns the path "reference", which indicates how the external resource will be referenced - by absolute path, relative path, or inline
virtual const reference_t property_path_reference() = 0;
virtual void set_property_path_reference(const reference_t) = 0;
/// Defines a signal that will be emitted anytime the path reference is modified
typedef sigc::signal<void> path_reference_changed_signal_t;
virtual path_reference_changed_signal_t& property_path_reference_changed_signal() = 0;
/// Returns a collection of pattern filters to be (optionally) used by the UI when prompting the user for a file
virtual const pattern_filters_t pattern_filters() = 0;
protected:
ipath_property() {}
ipath_property(const ipath_property&) {}
ipath_property& operator=(const ipath_property&) { return *this; }
virtual ~ipath_property() {}
};
std::ostream& operator<<(std::ostream&, const ipath_property::reference_t&);
std::istream& operator>>(std::istream&, ipath_property::reference_t&);
} // namespace k3d
#endif // !K3DSDK_IPATH_PROPERTY_H