/*
* Copyright 2010, Haiku. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
*               Michael Pfeiffer
*/
#ifndef GP_PARAMETER_VISITOR_H
#define GP_PARAMETER_VISITOR_H

#include <gutenprint/gutenprint.h>

#include <Size.h>
#include <Rect.h>


extern const char* kJobMode;
extern const char* kJob;

extern const char* kPrintingMode;
extern const char* kColor;
extern const char* kBlackAndWhite;

extern const char* kResolution;
extern const char* kFakeResolutionKey;

extern const char* kPageSize;

extern const char* kChannelBitDepth;


class GPParameterVisitor
{
public:
                                        GPParameterVisitor();
        virtual                 ~GPParameterVisitor();
        
                        void    Visit(const stp_printer_t* printer);
                        void    VisitParameter(stp_parameter_list_t list,
                                const stp_parameter_t* parameter, stp_parameter_t* description);
                        void    VisitStringList(stp_parameter_t* parameter);
                        void    VisitBooleanParameter(stp_parameter_t* description,
                                                stp_parameter_class_t parameterClass);
                        void    VisitDoubleParameter(stp_parameter_t* description,
                                                stp_parameter_class_t parameterClass);
                        void    VisitIntParameter(stp_parameter_t* description,
                                                stp_parameter_class_t parameterClass);
                        void    VisitDimensionParameter(stp_parameter_t* description,
                                                stp_parameter_class_t parameterClass);

        virtual bool    BeginParameter(const char* name, const char* displayName,
                                                stp_parameter_class_t parameterClass) = 0;
        // key is null if there is no default value
        virtual void    DefaultStringParameter(const char* name,
                                                const char* key) = 0;
        virtual void    StringParameterSize(const char* name, int size) = 0;
        virtual void    StringParameter(const char* name, const char* key,
                                                const char* displayName) = 0;
        virtual void    ResolutionParameter(const char* name, const char* key,
                                                const char* displayName, int x, int y) = 0;
        virtual void    PageSizeParameter(const char* name, const char* key,
                                                const char* displayName, BSize pageSize,
                                                BRect imageableArea) = 0;
        virtual void    EndParameter(const char* name) = 0;
        virtual void    BooleanParameter(const char* name, const char* displayName,
                                                bool defaultValue,
                                                stp_parameter_class_t parameterClass) = 0;
        virtual void    DoubleParameter(const char* name, const char* displayName,
                                                double lower, double upper, double defaultValue,
                                                stp_parameter_class_t parameterClass) = 0;
        virtual void    IntParameter(const char* name, const char* displayName,
                                                int lower, int upper, int defaultValue,
                                                stp_parameter_class_t parameterClass) = 0;
        virtual void    DimensionParameter(const char* name,
                                                const char* displayName, int lower,
                                                int upper, int defaultValue,
                                                stp_parameter_class_t parameterClass) = 0;
        virtual void    EndVisit() = 0;

private:
                        void    AddMissingResolution();

        stp_vars_t*             fVariables;
        bool                    fHasResolutionParameter;
};


#endif