michael@0: 
michael@0: /*
michael@0:  * Copyright 2006 The Android Open Source Project
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: 
michael@0: #ifndef SkMemberInfo_DEFINED
michael@0: #define SkMemberInfo_DEFINED
michael@0: 
michael@0: #if defined SK_BUILD_CONDENSED
michael@0:     #define SK_USE_CONDENSED_INFO 0
michael@0: #endif
michael@0: 
michael@0: #include "SkDisplayType.h"
michael@0: #include "SkScript.h"
michael@0: #include "SkString.h"
michael@0: #include "SkIntArray.h"
michael@0: 
michael@0: class SkAnimateMaker;
michael@0: class SkDisplayable;
michael@0: class SkScriptEngine;
michael@0: 
michael@0: // temporary hacks until name change is more complete
michael@0: #define SkFloat SkScalar
michael@0: #define SkInt SkS32
michael@0: 
michael@0: struct SkMemberInfo {
michael@0:     //!!! alternative:
michael@0:     // if fCount == 0, record is member property
michael@0:     // then fType can be type, so caller doesn't have to check
michael@0: #if SK_USE_CONDENSED_INFO == 0
michael@0:     const char* fName;  // may be NULL for anonymous functions
michael@0:     size_t fOffset; // if negative, is index into member pointer table (for properties and functions)
michael@0:     SkDisplayTypes fType;
michael@0:     int fCount;         // for properties, actual type (count is always assumed to be 1)
michael@0: #else
michael@0:     unsigned char fName;
michael@0:     signed char fOffset;
michael@0:     unsigned char fType;
michael@0:     signed char fCount;
michael@0: #endif
michael@0:     SkDisplayTypes arrayType() const {
michael@0:         SkASSERT(fType == SkType_Array);
michael@0:         return (SkDisplayTypes) fCount;  // hack, but worth it?
michael@0:     }
michael@0:     int functionIndex() const {
michael@0:         SkASSERT(fType == SkType_MemberFunction);
michael@0:         return (signed) fOffset > 0 ? -1 + (int) fOffset : -1 - (int) fOffset;
michael@0:     }
michael@0:     bool getArrayValue(const SkDisplayable* displayable, int index, SkOperand* value) const;
michael@0:     int getCount() const {
michael@0:         return fType == SkType_MemberProperty || fType == SkType_Array ||
michael@0:             fType == SkType_MemberFunction ? 1 : fCount;
michael@0:     }
michael@0:     const SkMemberInfo* getInherited() const;
michael@0:     size_t getSize(const SkDisplayable* ) const;
michael@0:     void getString(const SkDisplayable* , SkString** string) const;
michael@0:     SkDisplayTypes getType() const {
michael@0:         return fType == SkType_MemberProperty || fType == SkType_Array ||
michael@0:             fType == SkType_MemberFunction ? (SkDisplayTypes) fCount : (SkDisplayTypes) fType;
michael@0:     }
michael@0:     void getValue(const SkDisplayable* , SkOperand values[], int count) const;
michael@0:     bool isEnum() const;
michael@0:     const char* mapEnums(const char* match, int* value) const;
michael@0:     void* memberData(const SkDisplayable* displayable) const {
michael@0:         SkASSERT(fType != SkType_MemberProperty &&  fType != SkType_MemberFunction);
michael@0:         return (void*) ((const char*) displayable + fOffset);
michael@0:     }
michael@0:     int propertyIndex() const {
michael@0:         SkASSERT(fType == SkType_MemberProperty);
michael@0:         return (signed) fOffset > 0 ? -1 + (int) fOffset : -1 - (int) fOffset;
michael@0:     }
michael@0:     SkDisplayTypes propertyType() const {
michael@0:         SkASSERT(fType == SkType_MemberProperty || fType == SkType_Array);
michael@0:         return (SkDisplayTypes) fCount;  // hack, but worth it?
michael@0:     }
michael@0:     void setMemberData(SkDisplayable* displayable, const void* child, size_t size) const {
michael@0:         SkASSERT(fType != SkType_MemberProperty &&  fType != SkType_MemberFunction);
michael@0:         memcpy((char*) displayable + fOffset, child, size);
michael@0:     }
michael@0:     void setString(SkDisplayable* , SkString* ) const;
michael@0:     void setValue(SkDisplayable* , const SkOperand values[], int count) const;
michael@0:     bool setValue(SkAnimateMaker& , SkTDOperandArray* storage,
michael@0:         int storageOffset, int maxStorage, SkDisplayable* ,
michael@0:         SkDisplayTypes outType, const char value[], size_t len) const;
michael@0:     bool setValue(SkAnimateMaker& , SkTDOperandArray* storage,
michael@0:         int storageOffset, int maxStorage, SkDisplayable* ,
michael@0:         SkDisplayTypes outType, SkString& str) const;
michael@0: //  void setValue(SkDisplayable* , const char value[], const char name[]) const;
michael@0:     bool writeValue(SkDisplayable* displayable, SkTDOperandArray* arrayStorage,
michael@0:         int storageOffset, int maxStorage, void* untypedStorage, SkDisplayTypes outType,
michael@0:         SkScriptValue& scriptValue) const;
michael@0: #if SK_USE_CONDENSED_INFO == 0
michael@0:     static const SkMemberInfo* Find(const SkMemberInfo [], int count, int* index);
michael@0:     static const SkMemberInfo* Find(const SkMemberInfo [], int count, const char** name);
michael@0: #else
michael@0:     static const SkMemberInfo* Find(SkDisplayTypes type, int* index);
michael@0:     static const SkMemberInfo* Find(SkDisplayTypes type, const char** name);
michael@0: #endif
michael@0:     static size_t GetSize(SkDisplayTypes type); // size of simple types only
michael@0: //  static bool SetValue(void* value, const char* name, SkDisplayTypes , int count);
michael@0: };
michael@0: 
michael@0: #define SK_MEMBER(_member, _type) \
michael@0:     { #_member, SK_OFFSETOF(BASE_CLASS, _member), SkType_##_type, \
michael@0:     sizeof(((BASE_CLASS*) 1)->_member) / sizeof(SkScalar) }
michael@0: 
michael@0: #define SK_MEMBER_ALIAS(_member, _alias, _type) \
michael@0:     { #_member, SK_OFFSETOF(BASE_CLASS, _alias), SkType_##_type, \
michael@0:     sizeof(((BASE_CLASS*) 1)->_alias) / sizeof(SkScalar) }
michael@0: 
michael@0: #define SK_MEMBER_ARRAY(_member, _type) \
michael@0:     { #_member, SK_OFFSETOF(BASE_CLASS, _member), SkType_Array, \
michael@0:     (int) SkType_##_type }
michael@0: 
michael@0: #define SK_MEMBER_INHERITED \
michael@0:     { (const char*) INHERITED::fInfo, 0, SkType_BaseClassInfo, INHERITED::fInfoCount }
michael@0: 
michael@0: // #define SK_MEMBER_KEY_TYPE(_member, _type)
michael@0: //  {#_member, (size_t) -1, SkType_##_type, 0}
michael@0: 
michael@0: #define SK_FUNCTION(_member) \
michael@0:     k_##_member##Function
michael@0: 
michael@0: #define SK_PROPERTY(_member) \
michael@0:     k_##_member##Property
michael@0: 
michael@0: #define SK_MEMBER_DYNAMIC_FUNCTION(_member, _type) \
michael@0:     {#_member, (size_t) (+1 + SK_FUNCTION(_member)), SkType_MemberFunction, \
michael@0:     (int) SkType_##_type }
michael@0: 
michael@0: #define SK_MEMBER_DYNAMIC_PROPERTY(_member, _type) \
michael@0:     {#_member, (size_t) (1 + SK_PROPERTY(_member)), SkType_MemberProperty, \
michael@0:     (int) SkType_##_type }
michael@0: 
michael@0: #define SK_MEMBER_FUNCTION(_member, _type) \
michael@0:     {#_member, (size_t) (-1 - SK_FUNCTION(_member)), SkType_MemberFunction, \
michael@0:     (int) SkType_##_type }
michael@0: 
michael@0: #define SK_MEMBER_PROPERTY(_member, _type) \
michael@0:     {#_member, (size_t) (-1 - SK_PROPERTY(_member)), SkType_MemberProperty, \
michael@0:     (int) SkType_##_type }
michael@0: 
michael@0: #if SK_USE_CONDENSED_INFO == 0
michael@0: 
michael@0: #define DECLARE_PRIVATE_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     static const SkMemberInfo fInfo[]; \
michael@0:     static const int fInfoCount; \
michael@0:     virtual const SkMemberInfo* getMember(int index); \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]); \
michael@0:     typedef Sk##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     static const SkMemberInfo fInfo[]; \
michael@0:     static const int fInfoCount; \
michael@0:     virtual const SkMemberInfo* getMember(int index); \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]); \
michael@0:     virtual SkDisplayTypes getType() const { return SkType_##_type; } \
michael@0:     typedef Sk##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_DRAW_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     static const SkMemberInfo fInfo[]; \
michael@0:     static const int fInfoCount; \
michael@0:     virtual const SkMemberInfo* getMember(int index); \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]); \
michael@0:     virtual SkDisplayTypes getType() const { return SkType_##_type; } \
michael@0:     typedef SkDraw##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_DISPLAY_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     static const SkMemberInfo fInfo[]; \
michael@0:     static const int fInfoCount; \
michael@0:     virtual const SkMemberInfo* getMember(int index); \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]); \
michael@0:     virtual SkDisplayTypes getType() const { return SkType_##_type; } \
michael@0:     typedef SkDisplay##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_EMPTY_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     virtual SkDisplayTypes getType() const { return SkType_##_type; }
michael@0: 
michael@0: #define DECLARE_EXTRAS_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     static const SkMemberInfo fInfo[]; \
michael@0:     static const int fInfoCount; \
michael@0:     virtual const SkMemberInfo* getMember(int index); \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]); \
michael@0:     SkDisplayTypes fType; \
michael@0:     virtual SkDisplayTypes getType() const { return fType; } \
michael@0:     typedef _type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_NO_VIRTUALS_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     static const SkMemberInfo fInfo[]; \
michael@0:     static const int fInfoCount; \
michael@0:     typedef Sk##_type BASE_CLASS
michael@0: 
michael@0: #define DEFINE_GET_MEMBER(_class) \
michael@0:     const SkMemberInfo* _class::getMember(int index) { \
michael@0:         const SkMemberInfo* result = SkMemberInfo::Find(fInfo, SK_ARRAY_COUNT(fInfo), &index); \
michael@0:         return result; \
michael@0:     } \
michael@0:     const SkMemberInfo* _class::getMember(const char name[]) { \
michael@0:         const SkMemberInfo* result = SkMemberInfo::Find(fInfo, SK_ARRAY_COUNT(fInfo), &name); \
michael@0:         return result; \
michael@0:     } \
michael@0:     const int _class::fInfoCount = SK_ARRAY_COUNT(fInfo)
michael@0: 
michael@0: #define DEFINE_NO_VIRTUALS_GET_MEMBER(_class) \
michael@0:     const int _class::fInfoCount = SK_ARRAY_COUNT(fInfo)
michael@0: 
michael@0: #else
michael@0: 
michael@0: #define DECLARE_PRIVATE_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     typedef Sk##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     virtual const SkMemberInfo* getMember(int index) { \
michael@0:         return SkDisplayType::GetMember(NULL, SkType_##_type, &index); } \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]) { \
michael@0:         return SkDisplayType::GetMember(NULL, SkType_##_type, &name); } \
michael@0:     virtual SkDisplayTypes getType() const { return SkType_##_type; } \
michael@0:     typedef Sk##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_DRAW_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     virtual const SkMemberInfo* getMember(int index) { \
michael@0:         return SkDisplayType::GetMember(NULL, SkType_##_type, &index); } \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]) { \
michael@0:         return SkDisplayType::GetMember(NULL, SkType_##_type, &name); } \
michael@0:     virtual SkDisplayTypes getType() const { return SkType_##_type; } \
michael@0:     typedef SkDraw##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_DISPLAY_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     virtual const SkMemberInfo* getMember(int index) { \
michael@0:         return SkDisplayType::GetMember(NULL, SkType_##_type, &index); } \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]) { \
michael@0:         return SkDisplayType::GetMember(NULL, SkType_##_type, &name); } \
michael@0:     virtual SkDisplayTypes getType() const { return SkType_##_type; } \
michael@0:     typedef SkDisplay##_type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_EXTRAS_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     virtual const SkMemberInfo* getMember(int index) { \
michael@0:         return SkDisplayType::GetMember(NULL, SkType_##_type, &index); } \
michael@0:     virtual const SkMemberInfo* getMember(const char name[]) { \
michael@0:         return SkDisplayType::GetMember(NULL, fType, &name); } \
michael@0:     SkDisplayTypes fType; \
michael@0:     virtual SkDisplayTypes getType() const { return fType; } \
michael@0:     typedef _type BASE_CLASS
michael@0: 
michael@0: #define DECLARE_NO_VIRTUALS_MEMBER_INFO(_type) \
michael@0: public: \
michael@0:     typedef Sk##_type BASE_CLASS
michael@0: 
michael@0: #define DEFINE_GET_MEMBER(_class)
michael@0: #define DEFINE_NO_VIRTUALS_GET_MEMBER(_class)
michael@0: 
michael@0: #endif
michael@0: 
michael@0: #endif // SkMemberInfo_DEFINED