annotate trunk/src/Modules/Output/Graphics/GraphAxisSpec.h @ 397:7a573750b186

- First add of a lot of graphics code from the old version. Not working yet, not even compiling yet.

// Copyright 2006, Willem van Engen
//
// AIM-C: A C++ implementation of the Auditory Image Model
// http://www.acousticscale.org/AIMC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef __GRAPH_AXIS_SPEC_H__
#define __GRAPH_AXIS_SPEC_H__

#include "Support/Parameters.h"
#include "Modules/Output/Graphics/Scale/Scale.h"

/*! \class GraphAxisSpec "Output/GraphAxisSpec.h"
 *  \brief Axis specification for a GraphicsView
 */
class GraphAxisSpec {
public:
	/*! \brief Create a new GraphAxisSpec
	 *  \param fMin Minimum value on the axis to show
	 *  \param fMax Maximum value on the axis to show
	 *  \param iScale Scale to use
	 *
	 *  Please see SetScale() and SetRange() for more details.
	 */
	GraphAxisSpec(float fMin, float fMax, Scale::ScaleType iScale);
	//! \brief Create a new GraphAxisSpec from defaults
	GraphAxisSpec();

	~GraphAxisSpec();

	/*! \brief Set the scale to use
	 *  \param iScale Scale to use
	 */
	void SetDisplayScale(Scale::ScaleType iScale);
	/*! \brief Set the minumum and maximum values to show on the axis
	 *  \param fMin Minimum value on the axis to show
	 *  \param fMax Maximum value on the axis to show
	 *
	 *  Either fMin _must_ be smaller than fMax, or fMin==fMax but then
	 *  this function must be called later to fulfil the former condition
	 *  before it is used to scale data.
	 */
	void SetDisplayRange(float fMin, float fMax);
	/*! \brief Set the label of this axis
	 *  \param sLabel New label, or NULL to remove label
	 */
	void SetLabel(const char *sLabel);

	/*! \brief Read axis specification from parameter store
	 *  \param pParam Parameter store to read from
	 *  \param sPrefix Prefix to use, e.g. "view.x"
	 *  \param fMin Default minumum value for 'auto'
	 *  \param fMax Default maximum value for 'auto'
	 *  \param iScale Default scale for 'auto'
	 *  \return true if no error occured in reading
	 */
	bool Initialize(Parameters *pParam,
                  const char *sPrefix,
                  float fMin,
                  float fMax,
                  Scale::ScaleType iScale);

protected:
	//! \brief Minimum value on the axis to display
	float m_fMin;
	//! \brief Maximum value on the axis to display
	float m_fMax;
	//! \brief Scale to use
	Scale *m_pScale;
	//! \brief Axis label, NULL for no label
	const char *m_sLabel;

	friend class GraphicsView;
	friend class GraphicsViewTime;
};

#endif /* __GRAPH_AXIS_SPEC_H__ */