ogr_featurestyle.h

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/******************************************************************************
 *
 * Project:  OpenGIS Simple Features Reference Implementation
 * Purpose:  Define of Feature Representation
 * Author:   Stephane Villeneuve, stephane.v@videtron.ca
 *
 ******************************************************************************
 * Copyright (c) 1999, Frank Warmerdam
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/
 
#ifndef OGR_FEATURESTYLE_INCLUDE
#define OGR_FEATURESTYLE_INCLUDE
 
#include "cpl_conv.h"
#include "cpl_string.h"
#include "ogr_core.h"
 
class OGRFeature;
 
/*
 * All OGRStyleTool param lists are defined in ogr_core.h.
 */
 
typedef enum ogr_style_type
{
    OGRSTypeUnused = -1,
    OGRSTypeString,
    OGRSTypeDouble,
    OGRSTypeInteger,
    OGRSTypeBoolean
} OGRSType;
 
typedef struct ogr_style_param
{
    int eParam;
    const char *pszToken;
    GBool bGeoref;
    OGRSType eType;
} OGRStyleParamId;
 
typedef struct ogr_style_value
{
    char *pszValue;
    double dfValue;
    int nValue;  // Used for both integer and boolean types
    GBool bValid;
    OGRSTUnitId eUnit;
} OGRStyleValue;
 
 
// Every time a pszStyleString given in parameter is NULL,
// the StyleString defined in the Mgr will be use.
 
class CPL_DLL OGRStyleTable
{
  private:
    char **m_papszStyleTable = nullptr;
 
    CPLString osLastRequestedStyleName{};
    int iNextStyle = 0;
 
    CPL_DISALLOW_COPY_ASSIGN(OGRStyleTable)
 
  public:
    OGRStyleTable();
    ~OGRStyleTable();
    GBool AddStyle(const char *pszName, const char *pszStyleString);
    GBool RemoveStyle(const char *pszName);
    GBool ModifyStyle(const char *pszName, const char *pszStyleString);
 
    GBool SaveStyleTable(const char *pszFilename);
    GBool LoadStyleTable(const char *pszFilename);
    const char *Find(const char *pszStyleString);
    GBool IsExist(const char *pszName);
    const char *GetStyleName(const char *pszName);
    void Print(FILE *fpOut);
    void Clear();
    OGRStyleTable *Clone();
    void ResetStyleStringReading();
    const char *GetNextStyle();
    const char *GetLastStyleName();
};
 
class OGRStyleTool;
 
class CPL_DLL OGRStyleMgr
{
  private:
    OGRStyleTable *m_poDataSetStyleTable = nullptr;
    char *m_pszStyleString = nullptr;
 
    CPL_DISALLOW_COPY_ASSIGN(OGRStyleMgr)
 
  public:
    explicit OGRStyleMgr(OGRStyleTable *poDataSetStyleTable = nullptr);
    ~OGRStyleMgr();
 
    GBool SetFeatureStyleString(OGRFeature *,
                                const char *pszStyleString = nullptr,
                                GBool bNoMatching = FALSE);
    /* It will set in the given feature the pszStyleString with
            the style or will set the style name found in
            dataset StyleTable (if bNoMatching == FALSE). */
 
    const char *InitFromFeature(OGRFeature *);
    GBool InitStyleString(const char *pszStyleString = nullptr);
 
    const char *GetStyleName(const char *pszStyleString = nullptr);
    const char *GetStyleByName(const char *pszStyleName);
 
    GBool AddStyle(const char *pszStyleName,
                   const char *pszStyleString = nullptr);
 
    const char *GetStyleString(OGRFeature * = nullptr);
 
    GBool AddPart(OGRStyleTool *);
    GBool AddPart(const char *);
 
    int GetPartCount(const char *pszStyleString = nullptr);
    OGRStyleTool *GetPart(int hPartId, const char *pszStyleString = nullptr);
 
    /* It could have a reference counting process us for the OGRStyleTable, if
      needed. */
    OGRStyleTable *GetDataSetStyleTable()
    {
        return m_poDataSetStyleTable;
    }
 
    static OGRStyleTool *
    CreateStyleToolFromStyleString(const char *pszStyleString);
};
 
class CPL_DLL OGRStyleTool
{
  private:
    GBool m_bModified = false;
    GBool m_bParsed = false;
    double m_dfScale = 1.0;
    OGRSTUnitId m_eUnit = OGRSTUMM;
    OGRSTClassId m_eClassId = OGRSTCNone;
    char *m_pszStyleString = nullptr;
 
    virtual GBool Parse() = 0;
 
    CPL_DISALLOW_COPY_ASSIGN(OGRStyleTool)
 
  protected:
#ifndef DOXYGEN_SKIP
    GBool Parse(const OGRStyleParamId *pasStyle, OGRStyleValue *pasValue,
                int nCount);
#endif
 
  public:
    OGRStyleTool()
        : m_bModified(FALSE), m_bParsed(FALSE), m_dfScale(0.0),
          m_eUnit(OGRSTUGround), m_eClassId(OGRSTCNone),
          m_pszStyleString(nullptr)
    {
    }
 
    explicit OGRStyleTool(OGRSTClassId eClassId);
    virtual ~OGRStyleTool();
 
    static GBool GetRGBFromString(const char *pszColor, int &nRed, int &nGreen,
                                  int &nBlue, int &nTransparence);
    static int GetSpecificId(const char *pszId, const char *pszWanted);
 
#ifndef DOXYGEN_SKIP
    GBool IsStyleModified()
    {
        return m_bModified;
    }
 
    void StyleModified()
    {
        m_bModified = TRUE;
    }
 
    GBool IsStyleParsed()
    {
        return m_bParsed;
    }
 
    void StyleParsed()
    {
        m_bParsed = TRUE;
    }
#endif
 
    OGRSTClassId GetType();
 
#ifndef DOXYGEN_SKIP
    void SetInternalInputUnitFromParam(char *pszString);
#endif
 
    void SetUnit(OGRSTUnitId,
                 double dfScale = 1.0);  // the dfScale will be
                                         // used if we are working with Ground
                                         // Unit ( ground = paper * scale);
 
    OGRSTUnitId GetUnit()
    {
        return m_eUnit;
    }
 
    // There are two way to set the parameters in the Style, with generic
    // methods (using a defined enumeration) or with the reel method specific
    // for Each style tools.
 
    virtual const char *GetStyleString() = 0;
    void SetStyleString(const char *pszStyleString);
    const char *GetStyleString(const OGRStyleParamId *pasStyleParam,
                               OGRStyleValue *pasStyleValue, int nSize);
 
    const char *GetParamStr(const OGRStyleParamId &sStyleParam,
                            const OGRStyleValue &sStyleValue,
                            GBool &bValueIsNull);
 
    int GetParamNum(const OGRStyleParamId &sStyleParam,
                    const OGRStyleValue &sStyleValue, GBool &bValueIsNull);
 
    double GetParamDbl(const OGRStyleParamId &sStyleParam,
                       const OGRStyleValue &sStyleValue, GBool &bValueIsNull);
 
    double GetRawParamDbl(const OGRStyleParamId &sStyleParam,
                          const OGRStyleValue &sStyleValue,
                          OGRSTUnitId &eRawUnit, GBool &bValueIsNull);
 
    void SetParamStr(const OGRStyleParamId &sStyleParam,
                     OGRStyleValue &sStyleValue, const char *pszParamString);
 
    void SetParamNum(const OGRStyleParamId &sStyleParam,
                     OGRStyleValue &sStyleValue, int nParam);
 
    void SetParamDbl(const OGRStyleParamId &sStyleParam,
                     OGRStyleValue &sStyleValue, double dfParam);
#ifndef DOXYGEN_SKIP
    double ComputeWithUnit(double, OGRSTUnitId);
    int ComputeWithUnit(int, OGRSTUnitId);
#endif
};
 
 
class CPL_DLL OGRStylePen : public OGRStyleTool
{
  private:
    OGRStyleValue *m_pasStyleValue;
 
    GBool Parse() override;
 
    CPL_DISALLOW_COPY_ASSIGN(OGRStylePen)
 
  public:
    OGRStylePen();
    ~OGRStylePen() override;
 
    /**********************************************************************/
    /* Explicit fct for all parameters defined in the Drawing tools  Pen  */
    /**********************************************************************/
 
    const char *Color(GBool &bDefault)
    {
        return GetParamStr(OGRSTPenColor, bDefault);
    }
 
    void SetColor(const char *pszColor)
    {
        SetParamStr(OGRSTPenColor, pszColor);
    }
 
    double Width(GBool &bDefault)
    {
        return GetParamDbl(OGRSTPenWidth, bDefault);
    }
 
    double RawWidth(OGRSTUnitId &eRawUnit, GBool &bDefault)
    {
        return GetRawParamDbl(OGRSTPenWidth, eRawUnit, bDefault);
    }
 
    void SetWidth(double dfWidth)
    {
        SetParamDbl(OGRSTPenWidth, dfWidth);
    }
 
    const char *Pattern(GBool &bDefault)
    {
        return GetParamStr(OGRSTPenPattern, bDefault);
    }
 
    void SetPattern(const char *pszPattern)
    {
        SetParamStr(OGRSTPenPattern, pszPattern);
    }
 
    const char *Id(GBool &bDefault)
    {
        return GetParamStr(OGRSTPenId, bDefault);
    }
 
    void SetId(const char *pszId)
    {
        SetParamStr(OGRSTPenId, pszId);
    }
 
    double PerpendicularOffset(GBool &bDefault)
    {
        return GetParamDbl(OGRSTPenPerOffset, bDefault);
    }
 
    void SetPerpendicularOffset(double dfPerp)
    {
        SetParamDbl(OGRSTPenPerOffset, dfPerp);
    }
 
    const char *Cap(GBool &bDefault)
    {
        return GetParamStr(OGRSTPenCap, bDefault);
    }
 
    void SetCap(const char *pszCap)
    {
        SetParamStr(OGRSTPenCap, pszCap);
    }
 
    const char *Join(GBool &bDefault)
    {
        return GetParamStr(OGRSTPenJoin, bDefault);
    }
 
    void SetJoin(const char *pszJoin)
    {
        SetParamStr(OGRSTPenJoin, pszJoin);
    }
 
    int Priority(GBool &bDefault)
    {
        return GetParamNum(OGRSTPenPriority, bDefault);
    }
 
    void SetPriority(int nPriority)
    {
        SetParamNum(OGRSTPenPriority, nPriority);
    }
 
    /*****************************************************************/
 
    const char *GetParamStr(OGRSTPenParam eParam, GBool &bValueIsNull);
    int GetParamNum(OGRSTPenParam eParam, GBool &bValueIsNull);
    double GetParamDbl(OGRSTPenParam eParam, GBool &bValueIsNull);
    double GetRawParamDbl(OGRSTPenParam eParam, OGRSTUnitId &eRawUnit,
                          GBool &bValueIsNull);
    void SetParamStr(OGRSTPenParam eParam, const char *pszParamString);
    void SetParamNum(OGRSTPenParam eParam, int nParam);
    void SetParamDbl(OGRSTPenParam eParam, double dfParam);
    const char *GetStyleString() override;
};
 
class CPL_DLL OGRStyleBrush : public OGRStyleTool
{
  private:
    OGRStyleValue *m_pasStyleValue;
 
    GBool Parse() override;
 
    CPL_DISALLOW_COPY_ASSIGN(OGRStyleBrush)
 
  public:
    OGRStyleBrush();
    ~OGRStyleBrush() override;
 
    /* Explicit fct for all parameters defined in the Drawing tools Brush */
 
    const char *ForeColor(GBool &bDefault)
    {
        return GetParamStr(OGRSTBrushFColor, bDefault);
    }
 
    void SetForeColor(const char *pszColor)
    {
        SetParamStr(OGRSTBrushFColor, pszColor);
    }
 
    const char *BackColor(GBool &bDefault)
    {
        return GetParamStr(OGRSTBrushBColor, bDefault);
    }
 
    void SetBackColor(const char *pszColor)
    {
        SetParamStr(OGRSTBrushBColor, pszColor);
    }
 
    const char *Id(GBool &bDefault)
    {
        return GetParamStr(OGRSTBrushId, bDefault);
    }
 
    void SetId(const char *pszId)
    {
        SetParamStr(OGRSTBrushId, pszId);
    }
 
    double Angle(GBool &bDefault)
    {
        return GetParamDbl(OGRSTBrushAngle, bDefault);
    }
 
    void SetAngle(double dfAngle)
    {
        SetParamDbl(OGRSTBrushAngle, dfAngle);
    }
 
    double Size(GBool &bDefault)
    {
        return GetParamDbl(OGRSTBrushSize, bDefault);
    }
 
    void SetSize(double dfSize)
    {
        SetParamDbl(OGRSTBrushSize, dfSize);
    }
 
    double SpacingX(GBool &bDefault)
    {
        return GetParamDbl(OGRSTBrushDx, bDefault);
    }
 
    void SetSpacingX(double dfX)
    {
        SetParamDbl(OGRSTBrushDx, dfX);
    }
 
    double SpacingY(GBool &bDefault)
    {
        return GetParamDbl(OGRSTBrushDy, bDefault);
    }
 
    void SetSpacingY(double dfY)
    {
        SetParamDbl(OGRSTBrushDy, dfY);
    }
 
    int Priority(GBool &bDefault)
    {
        return GetParamNum(OGRSTBrushPriority, bDefault);
    }
 
    void SetPriority(int nPriority)
    {
        SetParamNum(OGRSTBrushPriority, nPriority);
    }
 
    /*****************************************************************/
 
    const char *GetParamStr(OGRSTBrushParam eParam, GBool &bValueIsNull);
    int GetParamNum(OGRSTBrushParam eParam, GBool &bValueIsNull);
    double GetParamDbl(OGRSTBrushParam eParam, GBool &bValueIsNull);
    void SetParamStr(OGRSTBrushParam eParam, const char *pszParamString);
    void SetParamNum(OGRSTBrushParam eParam, int nParam);
    void SetParamDbl(OGRSTBrushParam eParam, double dfParam);
    const char *GetStyleString() override;
};
 
class CPL_DLL OGRStyleSymbol : public OGRStyleTool
{
  private:
    OGRStyleValue *m_pasStyleValue;
 
    GBool Parse() override;
 
    CPL_DISALLOW_COPY_ASSIGN(OGRStyleSymbol)
 
  public:
    OGRStyleSymbol();
    ~OGRStyleSymbol() override;
 
    /*****************************************************************/
    /* Explicit fct for all parameters defined in the Drawing tools  */
    /*****************************************************************/
 
    const char *Id(GBool &bDefault)
    {
        return GetParamStr(OGRSTSymbolId, bDefault);
    }
 
    void SetId(const char *pszId)
    {
        SetParamStr(OGRSTSymbolId, pszId);
    }
 
    double Angle(GBool &bDefault)
    {
        return GetParamDbl(OGRSTSymbolAngle, bDefault);
    }
 
    void SetAngle(double dfAngle)
    {
        SetParamDbl(OGRSTSymbolAngle, dfAngle);
    }
 
    const char *Color(GBool &bDefault)
    {
        return GetParamStr(OGRSTSymbolColor, bDefault);
    }
 
    void SetColor(const char *pszColor)
    {
        SetParamStr(OGRSTSymbolColor, pszColor);
    }
 
    double Size(GBool &bDefault)
    {
        return GetParamDbl(OGRSTSymbolSize, bDefault);
    }
 
    void SetSize(double dfSize)
    {
        SetParamDbl(OGRSTSymbolSize, dfSize);
    }
 
    double SpacingX(GBool &bDefault)
    {
        return GetParamDbl(OGRSTSymbolDx, bDefault);
    }
 
    void SetSpacingX(double dfX)
    {
        SetParamDbl(OGRSTSymbolDx, dfX);
    }
 
    double SpacingY(GBool &bDefault)
    {
        return GetParamDbl(OGRSTSymbolDy, bDefault);
    }
 
    void SetSpacingY(double dfY)
    {
        SetParamDbl(OGRSTSymbolDy, dfY);
    }
 
    double Step(GBool &bDefault)
    {
        return GetParamDbl(OGRSTSymbolStep, bDefault);
    }
 
    void SetStep(double dfStep)
    {
        SetParamDbl(OGRSTSymbolStep, dfStep);
    }
 
    double Offset(GBool &bDefault)
    {
        return GetParamDbl(OGRSTSymbolOffset, bDefault);
    }
 
    void SetOffset(double dfOffset)
    {
        SetParamDbl(OGRSTSymbolOffset, dfOffset);
    }
 
    double Perp(GBool &bDefault)
    {
        return GetParamDbl(OGRSTSymbolPerp, bDefault);
    }
 
    void SetPerp(double dfPerp)
    {
        SetParamDbl(OGRSTSymbolPerp, dfPerp);
    }
 
    int Priority(GBool &bDefault)
    {
        return GetParamNum(OGRSTSymbolPriority, bDefault);
    }
 
    void SetPriority(int nPriority)
    {
        SetParamNum(OGRSTSymbolPriority, nPriority);
    }
 
    const char *FontName(GBool &bDefault)
    {
        return GetParamStr(OGRSTSymbolFontName, bDefault);
    }
 
    void SetFontName(const char *pszFontName)
    {
        SetParamStr(OGRSTSymbolFontName, pszFontName);
    }
 
    const char *OColor(GBool &bDefault)
    {
        return GetParamStr(OGRSTSymbolOColor, bDefault);
    }
 
    void SetOColor(const char *pszColor)
    {
        SetParamStr(OGRSTSymbolOColor, pszColor);
    }
 
    /*****************************************************************/
 
    const char *GetParamStr(OGRSTSymbolParam eParam, GBool &bValueIsNull);
    int GetParamNum(OGRSTSymbolParam eParam, GBool &bValueIsNull);
    double GetParamDbl(OGRSTSymbolParam eParam, GBool &bValueIsNull);
    void SetParamStr(OGRSTSymbolParam eParam, const char *pszParamString);
    void SetParamNum(OGRSTSymbolParam eParam, int nParam);
    void SetParamDbl(OGRSTSymbolParam eParam, double dfParam);
    const char *GetStyleString() override;
};
 
class CPL_DLL OGRStyleLabel : public OGRStyleTool
{
  private:
    OGRStyleValue *m_pasStyleValue;
 
    GBool Parse() override;
 
    CPL_DISALLOW_COPY_ASSIGN(OGRStyleLabel)
 
  public:
    OGRStyleLabel();
    ~OGRStyleLabel() override;
 
    /*****************************************************************/
    /* Explicit fct for all parameters defined in the Drawing tools  */
    /*****************************************************************/
 
    const char *FontName(GBool &bDefault)
    {
        return GetParamStr(OGRSTLabelFontName, bDefault);
    }
 
    void SetFontName(const char *pszFontName)
    {
        SetParamStr(OGRSTLabelFontName, pszFontName);
    }
 
    double Size(GBool &bDefault)
    {
        return GetParamDbl(OGRSTLabelSize, bDefault);
    }
 
    void SetSize(double dfSize)
    {
        SetParamDbl(OGRSTLabelSize, dfSize);
    }
 
    const char *TextString(GBool &bDefault)
    {
        return GetParamStr(OGRSTLabelTextString, bDefault);
    }
 
    void SetTextString(const char *pszTextString)
    {
        SetParamStr(OGRSTLabelTextString, pszTextString);
    }
 
    double Angle(GBool &bDefault)
    {
        return GetParamDbl(OGRSTLabelAngle, bDefault);
    }
 
    void SetAngle(double dfAngle)
    {
        SetParamDbl(OGRSTLabelAngle, dfAngle);
    }
 
    const char *ForeColor(GBool &bDefault)
    {
        return GetParamStr(OGRSTLabelFColor, bDefault);
    }
 
    void SetForColor(const char *pszForColor)
    {
        SetParamStr(OGRSTLabelFColor, pszForColor);
    }
 
    const char *BackColor(GBool &bDefault)
    {
        return GetParamStr(OGRSTLabelBColor, bDefault);
    }
 
    void SetBackColor(const char *pszBackColor)
    {
        SetParamStr(OGRSTLabelBColor, pszBackColor);
    }
 
    const char *Placement(GBool &bDefault)
    {
        return GetParamStr(OGRSTLabelPlacement, bDefault);
    }
 
    void SetPlacement(const char *pszPlacement)
    {
        SetParamStr(OGRSTLabelPlacement, pszPlacement);
    }
 
    int Anchor(GBool &bDefault)
    {
        return GetParamNum(OGRSTLabelAnchor, bDefault);
    }
 
    void SetAnchor(int nAnchor)
    {
        SetParamNum(OGRSTLabelAnchor, nAnchor);
    }
 
    double SpacingX(GBool &bDefault)
    {
        return GetParamDbl(OGRSTLabelDx, bDefault);
    }
 
    void SetSpacingX(double dfX)
    {
        SetParamDbl(OGRSTLabelDx, dfX);
    }
 
    double SpacingY(GBool &bDefault)
    {
        return GetParamDbl(OGRSTLabelDy, bDefault);
    }
 
    void SetSpacingY(double dfY)
    {
        SetParamDbl(OGRSTLabelDy, dfY);
    }
 
    double Perp(GBool &bDefault)
    {
        return GetParamDbl(OGRSTLabelPerp, bDefault);
    }
 
    void SetPerp(double dfPerp)
    {
        SetParamDbl(OGRSTLabelPerp, dfPerp);
    }
 
    GBool Bold(GBool &bDefault)
    {
        return GetParamNum(OGRSTLabelBold, bDefault);
    }
 
    void SetBold(GBool bBold)
    {
        SetParamNum(OGRSTLabelBold, bBold);
    }
 
    GBool Italic(GBool &bDefault)
    {
        return GetParamNum(OGRSTLabelItalic, bDefault);
    }
 
    void SetItalic(GBool bItalic)
    {
        SetParamNum(OGRSTLabelItalic, bItalic);
    }
 
    GBool Underline(GBool &bDefault)
    {
        return GetParamNum(OGRSTLabelUnderline, bDefault);
    }
 
    void SetUnderline(GBool bUnderline)
    {
        SetParamNum(OGRSTLabelUnderline, bUnderline);
    }
 
    int Priority(GBool &bDefault)
    {
        return GetParamNum(OGRSTLabelPriority, bDefault);
    }
 
    void SetPriority(int nPriority)
    {
        SetParamNum(OGRSTLabelPriority, nPriority);
    }
 
    GBool Strikeout(GBool &bDefault)
    {
        return GetParamNum(OGRSTLabelStrikeout, bDefault);
    }
 
    void SetStrikeout(GBool bStrikeout)
    {
        SetParamNum(OGRSTLabelStrikeout, bStrikeout);
    }
 
    double Stretch(GBool &bDefault)
    {
        return GetParamDbl(OGRSTLabelStretch, bDefault);
    }
 
    void SetStretch(double dfStretch)
    {
        SetParamDbl(OGRSTLabelStretch, dfStretch);
    }
 
    const char *ShadowColor(GBool &bDefault)
    {
        return GetParamStr(OGRSTLabelHColor, bDefault);
    }
 
    void SetShadowColor(const char *pszShadowColor)
    {
        SetParamStr(OGRSTLabelHColor, pszShadowColor);
    }
 
    const char *OutlineColor(GBool &bDefault)
    {
        return GetParamStr(OGRSTLabelOColor, bDefault);
    }
 
    void SetOutlineColor(const char *pszOutlineColor)
    {
        SetParamStr(OGRSTLabelOColor, pszOutlineColor);
    }
 
    /*****************************************************************/
 
    const char *GetParamStr(OGRSTLabelParam eParam, GBool &bValueIsNull);
    int GetParamNum(OGRSTLabelParam eParam, GBool &bValueIsNull);
    double GetParamDbl(OGRSTLabelParam eParam, GBool &bValueIsNull);
    void SetParamStr(OGRSTLabelParam eParam, const char *pszParamString);
    void SetParamNum(OGRSTLabelParam eParam, int nParam);
    void SetParamDbl(OGRSTLabelParam eParam, double dfParam);
    const char *GetStyleString() override;
};
 
 
#endif /* OGR_FEATURESTYLE_INCLUDE */