PI_ResourceTemplate.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 * 
 * NAME:        PI_ResourceTemplate.h
 *
 * COMMENTS:
 *
 */

#ifndef __PI_ResourceTemplate_H__
#define __PI_ResourceTemplate_H__

#include "PI_API.h"
#include <UT/UT_Array.h>
#include <UT/UT_String.h>
#include <UT/UT_SymbolTable.h>
#include <UT/UT_StringArray.h>

class PRM_Template;

// Viewer types that can have associated state templates.
// NB: The order here must correspond to theViewerTypeTokens in
//     PI_ResourceManager.C
enum PI_ViewerType
{
    PI_VIEWER_SCENE = 0,
    PI_VIEWER_COMPOSITE,
    PI_VIEWER_SCENEGRAPH,

    PI_NUM_VIEWER_TYPES         // sentinal value (not a valid value)
};

// Network types to further differentiate the states for a given viewer type.
enum PI_NetworkType
{
    PI_NETWORK_OBJ = 0,
    PI_NETWORK_SOP,
    PI_NETWORK_DOP,
    PI_NETWORK_COP2,
    PI_NETWORK_COP,
    PI_NETWORK_CHOP,
    PI_NETWORK_LOP,
    PI_NETWORK_TOP,

    PI_NUM_NETWORK_TYPES
};

const unsigned           PI_NETMASK_OBJ = 1 << (unsigned)PI_NETWORK_OBJ;
const unsigned           PI_NETMASK_SOP = 1 << (unsigned)PI_NETWORK_SOP;
const unsigned           PI_NETMASK_DOP = 1 << (unsigned)PI_NETWORK_DOP;
const unsigned           PI_NETMASK_COP2= 1 << (unsigned)PI_NETWORK_COP2;
const unsigned           PI_NETMASK_COP = 1 << (unsigned)PI_NETWORK_COP;
const unsigned           PI_NETMASK_CHOP= 1 << (unsigned)PI_NETWORK_CHOP;
const unsigned           PI_NETMASK_LOP = 1 << (unsigned)PI_NETWORK_LOP;
const unsigned           PI_NETMASK_TOP = 1 << (unsigned)PI_NETWORK_TOP;

class OP_Operator;
class PI_StateTemplate;
class PI_PITemplate;
class PI_HandleTemplate;
class PI_SelectorTemplate;

class PI_API PI_ResourceTemplate
{
public:
    PI_ResourceTemplate(const char *name, const char *english,
                        void *constructor);
    virtual ~PI_ResourceTemplate();

    void                 initialize(const char *name, const char *english,
                                    void *constructor);

    const UT_String             &name() const        { return myName; }
    const UT_String             &englishName() const { return myEnglishName; }
    void                        *constructor() const { return myConstructor; }
    void                         constructor(void *c){ myConstructor = c; }

private:
    UT_String                    myName;
    UT_String                    myEnglishName;
    void                        *myConstructor;
};

//------------------------------------------------------------------------

class PI_API PI_StateTemplate : public PI_ResourceTemplate
{
public:
    PI_StateTemplate(const char         *name,
                     const char         *english,
                     const char         *icon_name,
                     void               *constructor,
                     PRM_Template       *templates,
                     PI_ViewerType       viewer_type,
                     unsigned            network_types,
                     int                 op_independent = 1,
                     const char         *volatile_hotkey = 0,
                     OP_Operator        *op = 0);
    ~PI_StateTemplate() override;

    void                 initialize(const char *name,
                                const char *english,
                                const char *icon_name,
                                void *constructor,
                                PRM_Template *templates,
                                PI_ViewerType viewer_type,
                                unsigned network_types,
                                int op_independent = 1,
                                const char *volatile_hotkey = 0,
                                bool hidden = false);

    // Since myVolatileKeys and myVolatileKeysModifiers are
    // build during object initialization, they may no longer
    // match with the hotkeys if the user decides to change the settings,
    // so we need to rebuild. In some occasions (such as the use of the
    // alt key for volatile view), we may want to enable ("inject")
    // volatile that are determined at runtime out of outside of
    // hotkey settings.
    void                rebuildVolatileKeys(
                                UT_Array<int>* injectionKeys = 0,
                                UT_Array<int>* injectionKeysModifiers = 0);

          virtual PRM_Template  *templates()    { return myTemplates; }
    virtual const PRM_Template  *templates() const
                                        { return myTemplates; }
    PI_ViewerType        viewerType() const
                                        { return myViewerType; }
    unsigned             networkTypes() const
                                        { return myNetworkTypes; }
    const char          *getIconName() const
                                        { return myIconName; }
    int                  opIndependent() const
                                        { return myOpIndependentFlag; }
    const UT_Array<int>  &volatileKeys()
                                        { return myVolatileKeys; }
    const UT_Array<int>  &volatileKeysModifiers()
                                        {return myVolatileKeysModifiers;}
    const char          *getHotkeyString() const
                                        { return myHotkeyString; }
    OP_Operator         *getOperator() const
                                        { return myOp; }

    // Used by scripted states to indicate if the state is able to handle
    // changes to the selection. Most node states cannot, but the Edit state or
    // Layout state, for example, can transform any selected primitive.
    void                 setSupportsSelectionChange(bool supports_change)
                            { mySupportsSelectionChange = supports_change; }
    bool                 getSupportsSelectionChange() const
                            { return mySupportsSelectionChange; }
    // Used by scripted states to indicate that they are able to provide a
    // "move" tool, which means they should be allowed to handle t/r/e keys.
    void                 setSupportsMoveTool(bool supports_movetool)
                            { mySupportsMoveTool = supports_movetool; }
    bool                 getSupportsMoveTool() const
                            { return mySupportsMoveTool; }

    void                 setHidden(bool hide)
                            { myHidden = hide; }
    bool                 getHidden() const
                            { return myHidden; }

    // Used in BM_OpStateControl::enterState to maintain old behavior
    virtual bool        forceStateToEnter() const
                            { return myOpIndependentFlag > 0; }

protected:
    void                 setVolatileKeys(const UT_Array<int> &keys, 
                                         const UT_Array<int> &modifiers)
                            {
                                myVolatileKeys = keys;
                                myVolatileKeysModifiers = modifiers;
                            }

private:
    UT_String                    myIconName;
    UT_String                    myHotkeyString;
    PRM_Template                *myTemplates;
    OP_Operator                 *myOp;
    PI_ViewerType                myViewerType;
    unsigned                     myNetworkTypes;
    int                          myOpIndependentFlag;
    UT_Array<int>                myVolatileKeys;
    UT_Array<int>                myVolatileKeysModifiers;
    bool                         mySupportsSelectionChange;
    bool                         mySupportsMoveTool;
    bool                         myHidden;
};

//------------------------------------------------------------------------

class PI_API PI_HandleTemplate : public PI_ResourceTemplate
{
public:
    PI_HandleTemplate(const char    *name,
                      const char    *english,
                      void          *constructor,
                      PRM_Template  *templates);
    ~PI_HandleTemplate() override;

    virtual const PRM_Template      *templates() const   
    { 
        return myTemplates; 
    }
    virtual PRM_Template            *templates()             
    { 
        return myTemplates; 
    }

private:
    PRM_Template                *myTemplates;
};

//------------------------------------------------------------------------

typedef UT_SymbolMap<int> PI_ParmNameIndexMap;

namespace PI_PythonHandle
{
    class PITemplate;
};

class PI_API PI_PITemplate : public PI_ResourceTemplate
{
public:
    PI_PITemplate(const char *name,
                  const char *english,
                  const char *types,
                  const char *icon_name,
                  const char *parms[],
                  short       ethereal = 0, // 0 = vis; 1 = int; 2 = float);
                  unsigned    viewmask = 0xFFFFFFFF,
                  bool        display_always = false); 
    ~PI_PITemplate() override;

    const PI_ParmNameIndexMap   &parmNameTable() const
                                 { return myParmNameTable; }
    const UT_StringArray        &parmNameList() const
                                 { return myParmNameList; }
    const char                  *iconName() const   { return myIconName; }

    bool                         isDisplayAlways() const
                                 { return myDisplayAlwaysFlag; }

    short                        isEthereal() const { return myEtherealFlag; }
    bool                         supportsType(const char *type) const;
    unsigned                     getViewerMask() const { return myViewerMask;}

    // Not const as we use a cache.
    const char                  *getHelp();

private:
    friend class PI_PythonHandle::PITemplate;
    void addParmName(char const* parm_name, int index);

    UT_String                    myTypes;
    UT_String                    myIconName;
    int                          myHelpCached;
    UT_String                    myHelp;
    PI_ParmNameIndexMap          myParmNameTable;
    UT_StringArray               myParmNameList;
    short                        myEtherealFlag;
    unsigned                     myViewerMask;
    bool                         myDisplayAlwaysFlag;
};

//------------------------------------------------------------------------

class PI_API PI_SelectorTemplate : public PI_ResourceTemplate
{
public:
    PI_SelectorTemplate(const char *name,
                        const char *english,
                        const char *types,
                        bool ordered = false);
    ~PI_SelectorTemplate() override;

    bool                         isGeneric() const { return (myData != 0); }
    bool                         supportsType(const char *type) const;
    void                         data(void *d) { myData = d; }
    void                        *data() const { return myData; }
    bool                         ordered() const { return myOrdered; } 

private:
    UT_String                    myTypes;
    void                        *myData;
    bool                         myOrdered;
};

#endif