src/animator/SkAnimator.cpp - platform/external/skia - Git at Google


 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */


 #include "SkAnimator.h"
 #include "SkAnimateMaker.h"
 #include "SkCanvas.h"
 #include "SkDisplayApply.h"
 #include "SkDisplayMovie.h"
 #include "SkDisplayTypes.h"
 #include "SkDisplayXMLParser.h"
 #include "SkStream.h"
 #include "SkScript.h"
 #include "SkScript2.h" //   compiled script experiment
 #include "SkSystemEventTypes.h"
 #include "SkTypedArray.h"
 #ifdef SK_BUILD_FOR_ANDROID
 #include "SkDrawExtraPathEffect.h"
 #endif
 #ifdef SK_DEBUG
 #include "SkTime.h"
 #endif

 #if defined SK_BUILD_FOR_WIN32 && defined SK_DEBUG
     #define _static
     extern const char gMathPrimerText[];
     extern const char gMathPrimerBinary[];
 #else
     #define _static static
 #endif

 _static const char gMathPrimerText[] =
 "<screenplay>"
     "<Math id=\"Math\"/>"
     "<Number id=\"Number\"/>"
 "</screenplay>";

 #define gMathPrimer gMathPrimerText

 SkAnimator::SkAnimator() : fMaker(NULL) {
     initialize();
 }

 SkAnimator::~SkAnimator() {
     SkDELETE(fMaker);
 }

 void SkAnimator::addExtras(SkExtras* extras) {
     *fMaker->fExtras.append() = extras;
 }

 bool SkAnimator::appendStream(SkStream* stream) {
     return decodeStream(stream);
 }

 bool SkAnimator::decodeMemory(const void* buffer, size_t size)
 {
     fMaker->fFileName.reset();
     SkDisplayXMLParser parser(*fMaker);
     return parser.parse((const char*)buffer, size);
 }

 bool SkAnimator::decodeStream(SkStream* stream)
 {
     SkDisplayXMLParser parser(*fMaker);
     bool result = parser.parse(*stream);
     fMaker->setErrorString();
     return result;
 }

 bool SkAnimator::decodeDOM(const SkDOM& dom, const SkDOMNode* node)
 {
     fMaker->fFileName.reset();
     SkDisplayXMLParser parser(*fMaker);
     return parser.parse(dom, node);
 }

 bool SkAnimator::decodeURI(const char uri[]) {
 //  SkDebugf("animator decode %s\n", uri);

 //    SkStream* stream = SkStream::GetURIStream(fMaker->fPrefix.c_str(), uri);
     SkStream* stream = new SkFILEStream(uri);

     SkAutoTDelete<SkStream> autoDel(stream);
     setURIBase(uri);
     return decodeStream(stream);
 }

 bool SkAnimator::doCharEvent(SkUnichar code) {
     if (code == 0)
         return false;
     struct SkEventState state;
     state.fCode = code;
     fMaker->fEnableTime = fMaker->getAppTime();
     bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyChar, &state);
     fMaker->notifyInval();
     return result;
 }

 bool SkAnimator::doClickEvent(int clickState, SkScalar x, SkScalar y) {
     SkASSERT(clickState >= 0 && clickState <= 2);
     struct SkEventState state;
     state.fX = x;
     state.fY = y;
     fMaker->fEnableTime = fMaker->getAppTime();
     bool result = fMaker->fEvents.doEvent(*fMaker,
         clickState == 0 ? SkDisplayEvent::kMouseDown :
         clickState == 1 ? SkDisplayEvent::kMouseDrag :
         SkDisplayEvent::kMouseUp, &state);
     fMaker->notifyInval();
     return result;
 }

 bool SkAnimator::doKeyEvent(SkKey code) {
     if (code == 0)
         return false;
     struct SkEventState state;
     state.fCode = code;
     fMaker->fEnableTime = fMaker->getAppTime();
     bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyPress, &state);
     fMaker->notifyInval();
     return result;
 }

 bool SkAnimator::doKeyUpEvent(SkKey code) {
     if (code == 0)
         return false;
     struct SkEventState state;
     state.fCode = code;
     fMaker->fEnableTime = fMaker->getAppTime();
     bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyPressUp, &state);
     fMaker->notifyInval();
     return result;
 }

 bool SkAnimator::doUserEvent(const SkEvent& evt) {
     fMaker->fEnableTime = fMaker->getAppTime();
     return onEvent(evt);
 }

 SkAnimator::DifferenceType SkAnimator::draw(SkCanvas* canvas, SkPaint* paint, SkMSec time) {
     if (paint == NULL)
         return draw(canvas, time);
     fMaker->fScreenplay.time = time;
     fMaker->fCanvas = canvas;
     fMaker->fPaint = paint;
     fMaker->fDisplayList.fHasUnion = false;
     int result = fMaker->fDisplayList.draw(*fMaker, time);
     if (result)
         result += fMaker->fDisplayList.fHasUnion;
     return (DifferenceType) result;
 }

 SkAnimator::DifferenceType SkAnimator::draw(SkCanvas* canvas, SkMSec time) {
     SkPaint paint;
     return draw(canvas, &paint, time);
 }

 #ifdef SK_DEBUG
 void SkAnimator::eventDone(const SkEvent& ) {
 }
 #endif

 bool SkAnimator::findClickEvent(SkScalar x, SkScalar y) {
     struct SkEventState state;
     state.fDisable = true;
     state.fX = x;
     state.fY = y;
     fMaker->fEnableTime = fMaker->getAppTime();
     bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kMouseDown, &state);
     fMaker->notifyInval();
     return result;
 }

 const SkAnimator* SkAnimator::getAnimator(const SkDisplayable* displayable) const {
     if (displayable->getType() != SkType_Movie)
         return NULL;
     const SkDisplayMovie* movie = (const SkDisplayMovie*) displayable;
     return movie->getAnimator();
 }

 const SkDisplayable* SkAnimator::getElement(const char* id) {
     SkDisplayable* element;
     if (fMaker->find(id, &element) == false)
         return NULL;
     return (const SkDisplayable*) element;
 }

 SkElementType SkAnimator::getElementType(const SkDisplayable* ae) {
     SkDisplayable* element = (SkDisplayable*) ae;
     const SkMemberInfo* info = SkDisplayType::GetMembers(fMaker, element->getType(), NULL);
     return (SkElementType) SkDisplayType::Find(fMaker, info);
 }

 SkElementType SkAnimator::getElementType(const char* id) {
     const SkDisplayable* element = getElement(id);
     return getElementType(element);
 }

 const SkMemberInfo* SkAnimator::getField(const SkDisplayable* ae, const char* field) {
     SkDisplayable* element = (SkDisplayable*) ae;
     const SkMemberInfo* info = element->getMember(field);
     return (const SkMemberInfo*) info;
 }

 const SkMemberInfo* SkAnimator::getField(const char* elementID, const char* field) {
     const SkDisplayable* element = getElement(elementID);
     return getField(element, field);
 }

 SkFieldType SkAnimator::getFieldType(const SkMemberInfo* ai) {
     const SkMemberInfo* info = (const SkMemberInfo*) ai;
     return (SkFieldType) info->getType();
 }

 SkFieldType SkAnimator::getFieldType(const char* id, const char* fieldID) {
     const SkMemberInfo* field = getField(id, fieldID);
     return getFieldType(field);
 }

  static bool getArrayCommon(const SkDisplayable* ae, const SkMemberInfo* ai,
      int index, SkOperand* operand, SkDisplayTypes type) {
     const SkDisplayable* element = (const SkDisplayable*) ae;
     const SkMemberInfo* info = (const SkMemberInfo*) ai;
     SkASSERT(info->fType == SkType_Array);
     return info->getArrayValue(element, index, operand);
 }

 int32_t SkAnimator::getArrayInt(const SkDisplayable* ae,
         const SkMemberInfo* ai, int index) {
     SkOperand operand;
     bool result = getArrayCommon(ae, ai, index, &operand, SkType_Int);
     return result ? operand.fS32 : SK_NaN32;
 }

 int32_t SkAnimator::getArrayInt(const char* id, const char* fieldID, int index) {
     const SkDisplayable* element = getElement(id);
     if (element == NULL)
         return SK_NaN32;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return SK_NaN32;
     return getArrayInt(element, field, index);
 }

 SkScalar SkAnimator::getArrayScalar(const SkDisplayable* ae,
         const SkMemberInfo* ai, int index) {
     SkOperand operand;
     bool result = getArrayCommon(ae, ai, index, &operand, SkType_Float);
     return result ? operand.fScalar : SK_ScalarNaN;
 }

 SkScalar SkAnimator::getArrayScalar(const char* id, const char* fieldID, int index) {
     const SkDisplayable* element = getElement(id);
     if (element == NULL)
         return SK_ScalarNaN;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return SK_ScalarNaN;
     return getArrayScalar(element, field, index);
 }

 const char* SkAnimator::getArrayString(const SkDisplayable* ae,
         const SkMemberInfo* ai, int index) {
     SkOperand operand;
     bool result = getArrayCommon(ae, ai, index, &operand, SkType_String);
     return result ? operand.fString->c_str() : NULL;
 }

 const char* SkAnimator::getArrayString(const char* id, const char* fieldID, int index) {
     const SkDisplayable* element = getElement(id);
     if (element == NULL)
         return NULL;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return NULL;
     return getArrayString(element, field, index);
 }

 SkMSec SkAnimator::getInterval() {
     return fMaker->fMinimumInterval == (SkMSec) -1 ? 0 : fMaker->fMinimumInterval;
 }

 void SkAnimator::getInvalBounds(SkRect* inval) {
     if (fMaker->fDisplayList.fHasUnion) {
         inval->fLeft = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fLeft);
         inval->fTop = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fTop);
         inval->fRight = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fRight);
         inval->fBottom = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fBottom);
     } else {
         inval->fLeft = inval->fTop = -SK_ScalarMax;
         inval->fRight = inval->fBottom = SK_ScalarMax;
     }
 }

 const SkXMLParserError* SkAnimator::getParserError() {
     return &fMaker->fError;
 }

 const char* SkAnimator::getParserErrorString() {
     if (fMaker->fErrorString.size() == 0 && fMaker->fError.hasError())
         fMaker->setErrorString();
     return fMaker->fErrorString.c_str();
 }

 int32_t SkAnimator::getInt(const SkDisplayable* element, const SkMemberInfo* info) {
     if (info->fType != SkType_MemberProperty) {
         SkOperand operand;
         if (info->getType() == SkType_Int) {
             info->getValue(element, &operand, 1);
             return operand.fS32;
         }
         return SK_NaN32;
     }
     SkScriptValue scriptValue;
     bool success = element->getProperty(info->propertyIndex(), &scriptValue);
     if (success && scriptValue.fType == SkType_Int)
         return scriptValue.fOperand.fS32;
     return SK_NaN32;
 }

 int32_t SkAnimator::getInt(const char* id, const char* fieldID) {
     const SkDisplayable* element = getElement(id);
     if (element == NULL)
         return SK_NaN32;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return SK_NaN32;
     return getInt(element, field);
 }

 SkScalar SkAnimator::getScalar(const SkDisplayable* element, const SkMemberInfo* info) {
     if (info->fType != SkType_MemberProperty) {
         SkOperand operand;
         if (info->getType() == SkType_Float) {
             info->getValue(element, &operand, 1);
             return operand.fScalar;
         }
         return SK_ScalarNaN;
     }
     SkScriptValue scriptValue;
     bool success = element->getProperty(info->propertyIndex(), &scriptValue);
     if (success && scriptValue.fType == SkType_Float)
         return scriptValue.fOperand.fScalar;
     return SK_ScalarNaN;
 }

 SkScalar SkAnimator::getScalar(const char* id, const char* fieldID) {
     const SkDisplayable* element = getElement(id);
     if (element == NULL)
         return SK_ScalarNaN;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return SK_ScalarNaN;
     return getScalar(element, field);
 }

 const char* SkAnimator::getString(const SkDisplayable* ae,
         const SkMemberInfo* ai) {
     const SkDisplayable* element = (const SkDisplayable*) ae;
     const SkMemberInfo* info = (const SkMemberInfo*) ai;
     SkString* temp;
     info->getString(element, &temp);
     return temp->c_str();
 }

 const char* SkAnimator::getString(const char* id, const char* fieldID) {
     const SkDisplayable* element = getElement(id);
     if (element == NULL)
         return NULL;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return NULL;
     return getString(element, field);
 }

 const char* SkAnimator::getURIBase() {
     return fMaker->fPrefix.c_str();
 }

 void SkAnimator::initialize() {
     SkDELETE(fMaker);
     fMaker = SkNEW_ARGS(SkAnimateMaker, (this, NULL, NULL));
     decodeMemory(gMathPrimer, sizeof(gMathPrimer)-1);
 #ifdef SK_BUILD_FOR_ANDROID
     InitializeSkExtraPathEffects(this);
 #endif
 }


 #ifdef SK_DEBUG
 bool SkAnimator::isTrackingEvents() {
     return false;
 }
 #endif

 bool SkAnimator::onEvent(const SkEvent& evt) {
 #ifdef SK_DEBUG
     SkAnimator* root = fMaker->getRoot();
     if (root == NULL)
         root = this;
     if (root->isTrackingEvents())
         root->eventDone(evt);
 #endif
     if (evt.isType(SK_EventType_OnEnd)) {
         SkEventState eventState;
         bool success = evt.findPtr("anim", (void**) &eventState.fDisplayable);
         SkASSERT(success);
         success = evt.findS32("time", (int32_t*) &fMaker->fEnableTime);
         SkASSERT(success);
         fMaker->fAdjustedStart = fMaker->getAppTime() - fMaker->fEnableTime;
         fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kOnEnd, &eventState);
         fMaker->fAdjustedStart = 0;
         goto inval;
     }
     if (evt.isType(SK_EventType_Delay)) {
         fMaker->doDelayedEvent();
         goto inval;
     }
     {
         const char* id = evt.findString("id");
         if (id == NULL)
             return false;
         SkDisplayable** firstMovie = fMaker->fMovies.begin();
         SkDisplayable** endMovie = fMaker->fMovies.end();
         for (SkDisplayable** ptr = firstMovie; ptr < endMovie; ptr++) {
             SkDisplayMovie* movie = (SkDisplayMovie*) *ptr;
             movie->doEvent(evt);
         }
         {
             SkDisplayable* event;
             if (fMaker->find(id, &event) == false)
                 return false;
     #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
             SkString debugOut;
             SkMSec realTime = fMaker->getAppTime();
             debugOut.appendS32(realTime - fMaker->fDebugTimeBase);
             debugOut.append(" onEvent id=");
             debugOut.append(id);
     #endif
             SkMSec time = evt.getFast32();
             if (time != 0) {
                 SkMSec app  = fMaker->getAppTime();
                 fMaker->setEnableTime(app, time);
     #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
                 debugOut.append(" time=");
                 debugOut.appendS32(time - fMaker->fDebugTimeBase);
                 debugOut.append(" adjust=");
                 debugOut.appendS32(fMaker->fAdjustedStart);
     #endif
             }
     #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
             SkDebugf("%s\n", debugOut.c_str());
     #endif
             SkASSERT(event->isEvent());
             SkDisplayEvent* displayEvent = (SkDisplayEvent*) event;
             displayEvent->populateInput(*fMaker, evt);
             displayEvent->enableEvent(*fMaker);
         }
     }
 inval:
     fMaker->notifyInval();
     return true;
 }

 void SkAnimator::onEventPost(SkEvent* evt, SkEventSinkID sinkID)
 {
 #ifdef SK_DEBUG
     SkAnimator* root = fMaker->getRoot();
     if (root) {
         root->onEventPost(evt, sinkID);
         return;
     }
 #else
     SkASSERT(sinkID == this->getSinkID() || this->getHostEventSinkID() == sinkID);
 #endif
     evt->setTargetID(sinkID)->post();
 }

 void SkAnimator::onEventPostTime(SkEvent* evt, SkEventSinkID sinkID, SkMSec time)
 {
 #ifdef SK_DEBUG
     SkAnimator* root = fMaker->getRoot();
     if (root) {
         root->onEventPostTime(evt, sinkID, time);
         return;
     }
 #else
     SkASSERT(sinkID == this->getSinkID() || this->getHostEventSinkID() == sinkID);
 #endif
     evt->setTargetID(sinkID)->postTime(time);
 }

 void SkAnimator::reset() {
     fMaker->fDisplayList.reset();
 }

 SkEventSinkID SkAnimator::getHostEventSinkID() const {
     return fMaker->fHostEventSinkID;
 }

 void SkAnimator::setHostEventSinkID(SkEventSinkID target) {
     fMaker->fHostEventSinkID = target;
 }

 void SkAnimator::onSetHostHandler(Handler ) {
 }

 void SkAnimator::setJavaOwner(Handler ) {
 }

 bool SkAnimator::setArrayString(const char* id, const char* fieldID, const char** array, int num)
 {
     SkTypedArray tArray(SkType_String);
     tArray.setCount(num);
     for (int i = 0; i < num; i++) {
         SkOperand op;
         op.fString = new SkString(array[i]);
         tArray[i] = op;
     }
     return setArray(id, fieldID, tArray);
 }
 bool SkAnimator::setArrayInt(const char* id, const char* fieldID, const int* array, int num)
 {
     SkTypedArray tArray(SkType_Int);
     tArray.setCount(num);
     for (int i = 0; i < num; i++) {
         SkOperand op;
         op.fS32 = array[i];
         tArray[i] = op;
     }
     return setArray(id, fieldID, tArray);
 }

 bool SkAnimator::setArray(SkDisplayable* element, const SkMemberInfo* info, SkTypedArray array) {
     if (info->fType != SkType_Array)
         return false;   //the field is not an array
     //i think we can handle the case where the displayable itself is an array differently from the
     //case where it has an array - for one thing, if it is an array, i think we can change its type
     //if it's not, we cannot
     SkDisplayTypes type = element->getType();
     if (type == SkType_Array) {
         SkDisplayArray* dispArray = (SkDisplayArray*) element;
         dispArray->values = array;
         return true;
     }
     else
         return false;   //currently i don't care about this case
 }

 bool SkAnimator::setArray(const char* id, const char* fieldID, SkTypedArray array) {
     SkDisplayable* element = (SkDisplayable*) getElement(id);
     //should I go ahead and change all 'NULL's to 'NULL'?
     if (element == NULL)
         return false;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return false;
     return setArray(element, field, array);
 }

 bool SkAnimator::setInt(SkDisplayable* element, const SkMemberInfo* info, int32_t s32) {
     if (info->fType != SkType_MemberProperty) {
         SkOperand operand;
         operand.fS32 = s32;
         SkASSERT(info->getType() == SkType_Int);
         info->setValue(element, &operand, 1);
     } else {
         SkScriptValue scriptValue;
         scriptValue.fType = SkType_Int;
         scriptValue.fOperand.fS32 = s32;
         element->setProperty(info->propertyIndex(), scriptValue);
     }
     return true;
 }

 bool SkAnimator::setInt(const char* id, const char* fieldID, int32_t s32) {
     SkDisplayable* element = (SkDisplayable*) getElement(id);
     if (element == NULL)
         return false;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return false;
     return setInt(element, field, s32);
 }

 bool SkAnimator::setScalar(SkDisplayable* element, const SkMemberInfo* info, SkScalar scalar) {
     if (info->fType != SkType_MemberProperty) {
         SkOperand operand;
         operand.fScalar = scalar;
         SkASSERT(info->getType() == SkType_Float);
         info->setValue(element, &operand, 1);
     } else {
         SkScriptValue scriptValue;
         scriptValue.fType = SkType_Float;
         scriptValue.fOperand.fScalar = scalar;
         element->setProperty(info->propertyIndex(), scriptValue);
     }
     return true;
 }

 bool SkAnimator::setScalar(const char* id, const char* fieldID, SkScalar scalar) {
     SkDisplayable* element = (SkDisplayable*) getElement(id);
     if (element == NULL)
         return false;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return false;
     return setScalar(element, field, scalar);
 }

 bool SkAnimator::setString(SkDisplayable* element,
         const SkMemberInfo* info, const char* str) {
     // !!! until this is fixed, can't call script with global references from here
     info->setValue(*fMaker, NULL, 0, info->fCount, element, info->getType(), str, strlen(str));
     return true;
 }

 bool SkAnimator::setString(const char* id, const char* fieldID, const char* str) {
     SkDisplayable* element = (SkDisplayable*) getElement(id);
     if (element == NULL)
         return false;
     const SkMemberInfo* field = getField(element, fieldID);
     if (field == NULL)
         return false;
     return setString(element, field, str);
 }

 void SkAnimator::setTimeline(const Timeline& timeline) {
     fMaker->fTimeline = &timeline;
 }

 void SkAnimator::setURIBase(const char* uri) {
     if (uri)
     {
         const char* tail = strrchr(uri, '/');
         if (tail) {
             SkString prefix(uri, tail - uri + 1);
             if (uri[0] != '.' /*SkStream::IsAbsoluteURI(uri)*/)
                 fMaker->fPrefix.reset();
             fMaker->fPrefix.append(prefix);
             fMaker->fFileName.set(tail + 1);
         } else
             fMaker->fFileName.set(uri);
     }
 }

 #ifdef SK_DEBUG
 bool SkAnimator::NoLeaks() {
 #ifdef SK_BUILD_FOR_MAC
     if (SkDisplayable::fAllocations.count() == 0)
         return true;
 //  return SkDisplayable::fAllocationCount == 0;
     SkDebugf("!!! leaked %d displayables:\n", SkDisplayable::fAllocations.count());
     for (SkDisplayable** leak = SkDisplayable::fAllocations.begin(); leak < SkDisplayable::fAllocations.end(); leak++)
         SkDebugf("%08x %s\n", *leak, (*leak)->id);
 #endif
     return false;
 }
 #endif

 #ifdef SK_SUPPORT_UNITTEST
 #include "SkAnimatorScript.h"
 #include "SkBase64.h"
 #include "SkParse.h"
 #include "SkMemberInfo.h"

 #define unittestline(type)  { #type , type::UnitTest }
 #endif


 void SkAnimator::Init(bool runUnitTests) {
 #ifdef SK_SUPPORT_UNITTEST
     if (runUnitTests == false)
         return;
     static const struct {
         const char* fTypeName;
         void (*fUnitTest)( );
     } gUnitTests[] = {
         unittestline(SkBase64),
         unittestline(SkDisplayType),
         unittestline(SkParse),
         unittestline(SkScriptEngine),
 //      unittestline(SkScriptEngine2),  // compiled script experiment
         unittestline(SkAnimatorScript)
     };
     for (int i = 0; i < (int)SK_ARRAY_COUNT(gUnitTests); i++)
     {
         SkDebugf("SkAnimator: Running UnitTest for %s\n", gUnitTests[i].fTypeName);
         gUnitTests[i].fUnitTest();
         SkDebugf("SkAnimator: End UnitTest for %s\n", gUnitTests[i].fTypeName);
     }
 #endif
 }

 void SkAnimator::Term() {
 }

	/*
	* Copyright 2006 The Android Open Source Project
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/


	#include "SkAnimator.h"
	#include "SkAnimateMaker.h"
	#include "SkCanvas.h"
	#include "SkDisplayApply.h"
	#include "SkDisplayMovie.h"
	#include "SkDisplayTypes.h"
	#include "SkDisplayXMLParser.h"
	#include "SkStream.h"
	#include "SkScript.h"
	#include "SkScript2.h" // compiled script experiment
	#include "SkSystemEventTypes.h"
	#include "SkTypedArray.h"
	#ifdef SK_BUILD_FOR_ANDROID
	#include "SkDrawExtraPathEffect.h"
	#endif
	#ifdef SK_DEBUG
	#include "SkTime.h"
	#endif

	#if defined SK_BUILD_FOR_WIN32 && defined SK_DEBUG
	#define _static
	extern const char gMathPrimerText[];
	extern const char gMathPrimerBinary[];
	#else
	#define _static static
	#endif

	_static const char gMathPrimerText[] =
	"<screenplay>"
	"<Math id=\"Math\"/>"
	"<Number id=\"Number\"/>"
	"</screenplay>";

	#define gMathPrimer gMathPrimerText

	SkAnimator::SkAnimator() : fMaker(NULL) {
	initialize();
	}

	SkAnimator::~SkAnimator() {
	SkDELETE(fMaker);
	}

	void SkAnimator::addExtras(SkExtras* extras) {
	*fMaker->fExtras.append() = extras;
	}

	bool SkAnimator::appendStream(SkStream* stream) {
	return decodeStream(stream);
	}

	bool SkAnimator::decodeMemory(const void* buffer, size_t size)
	{
	fMaker->fFileName.reset();
	SkDisplayXMLParser parser(*fMaker);
	return parser.parse((const char*)buffer, size);
	}

	bool SkAnimator::decodeStream(SkStream* stream)
	{
	SkDisplayXMLParser parser(*fMaker);
	bool result = parser.parse(*stream);
	fMaker->setErrorString();
	return result;
	}

	bool SkAnimator::decodeDOM(const SkDOM& dom, const SkDOMNode* node)
	{
	fMaker->fFileName.reset();
	SkDisplayXMLParser parser(*fMaker);
	return parser.parse(dom, node);
	}

	bool SkAnimator::decodeURI(const char uri[]) {
	// SkDebugf("animator decode %s\n", uri);

	// SkStream* stream = SkStream::GetURIStream(fMaker->fPrefix.c_str(), uri);
	SkStream* stream = new SkFILEStream(uri);

	SkAutoTDelete<SkStream> autoDel(stream);
	setURIBase(uri);
	return decodeStream(stream);
	}

	bool SkAnimator::doCharEvent(SkUnichar code) {
	if (code == 0)
	return false;
	struct SkEventState state;
	state.fCode = code;
	fMaker->fEnableTime = fMaker->getAppTime();
	bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyChar, &state);
	fMaker->notifyInval();
	return result;
	}

	bool SkAnimator::doClickEvent(int clickState, SkScalar x, SkScalar y) {
	SkASSERT(clickState >= 0 && clickState <= 2);
	struct SkEventState state;
	state.fX = x;
	state.fY = y;
	fMaker->fEnableTime = fMaker->getAppTime();
	bool result = fMaker->fEvents.doEvent(*fMaker,
	clickState == 0 ? SkDisplayEvent::kMouseDown :
	clickState == 1 ? SkDisplayEvent::kMouseDrag :
	SkDisplayEvent::kMouseUp, &state);
	fMaker->notifyInval();
	return result;
	}

	bool SkAnimator::doKeyEvent(SkKey code) {
	if (code == 0)
	return false;
	struct SkEventState state;
	state.fCode = code;
	fMaker->fEnableTime = fMaker->getAppTime();
	bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyPress, &state);
	fMaker->notifyInval();
	return result;
	}

	bool SkAnimator::doKeyUpEvent(SkKey code) {
	if (code == 0)
	return false;
	struct SkEventState state;
	state.fCode = code;
	fMaker->fEnableTime = fMaker->getAppTime();
	bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyPressUp, &state);
	fMaker->notifyInval();
	return result;
	}

	bool SkAnimator::doUserEvent(const SkEvent& evt) {
	fMaker->fEnableTime = fMaker->getAppTime();
	return onEvent(evt);
	}

	SkAnimator::DifferenceType SkAnimator::draw(SkCanvas* canvas, SkPaint* paint, SkMSec time) {
	if (paint == NULL)
	return draw(canvas, time);
	fMaker->fScreenplay.time = time;
	fMaker->fCanvas = canvas;
	fMaker->fPaint = paint;
	fMaker->fDisplayList.fHasUnion = false;
	int result = fMaker->fDisplayList.draw(*fMaker, time);
	if (result)
	result += fMaker->fDisplayList.fHasUnion;
	return (DifferenceType) result;
	}

	SkAnimator::DifferenceType SkAnimator::draw(SkCanvas* canvas, SkMSec time) {
	SkPaint paint;
	return draw(canvas, &paint, time);
	}

	#ifdef SK_DEBUG
	void SkAnimator::eventDone(const SkEvent& ) {
	}
	#endif

	bool SkAnimator::findClickEvent(SkScalar x, SkScalar y) {
	struct SkEventState state;
	state.fDisable = true;
	state.fX = x;
	state.fY = y;
	fMaker->fEnableTime = fMaker->getAppTime();
	bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kMouseDown, &state);
	fMaker->notifyInval();
	return result;
	}

	const SkAnimator* SkAnimator::getAnimator(const SkDisplayable* displayable) const {
	if (displayable->getType() != SkType_Movie)
	return NULL;
	const SkDisplayMovie* movie = (const SkDisplayMovie*) displayable;
	return movie->getAnimator();
	}

	const SkDisplayable* SkAnimator::getElement(const char* id) {
	SkDisplayable* element;
	if (fMaker->find(id, &element) == false)
	return NULL;
	return (const SkDisplayable*) element;
	}

	SkElementType SkAnimator::getElementType(const SkDisplayable* ae) {
	SkDisplayable* element = (SkDisplayable*) ae;
	const SkMemberInfo* info = SkDisplayType::GetMembers(fMaker, element->getType(), NULL);
	return (SkElementType) SkDisplayType::Find(fMaker, info);
	}

	SkElementType SkAnimator::getElementType(const char* id) {
	const SkDisplayable* element = getElement(id);
	return getElementType(element);
	}

	const SkMemberInfo* SkAnimator::getField(const SkDisplayable* ae, const char* field) {
	SkDisplayable* element = (SkDisplayable*) ae;
	const SkMemberInfo* info = element->getMember(field);
	return (const SkMemberInfo*) info;
	}

	const SkMemberInfo* SkAnimator::getField(const char* elementID, const char* field) {
	const SkDisplayable* element = getElement(elementID);
	return getField(element, field);
	}

	SkFieldType SkAnimator::getFieldType(const SkMemberInfo* ai) {
	const SkMemberInfo* info = (const SkMemberInfo*) ai;
	return (SkFieldType) info->getType();
	}

	SkFieldType SkAnimator::getFieldType(const char* id, const char* fieldID) {
	const SkMemberInfo* field = getField(id, fieldID);
	return getFieldType(field);
	}

	static bool getArrayCommon(const SkDisplayable* ae, const SkMemberInfo* ai,
	int index, SkOperand* operand, SkDisplayTypes type) {
	const SkDisplayable* element = (const SkDisplayable*) ae;
	const SkMemberInfo* info = (const SkMemberInfo*) ai;
	SkASSERT(info->fType == SkType_Array);
	return info->getArrayValue(element, index, operand);
	}

	int32_t SkAnimator::getArrayInt(const SkDisplayable* ae,
	const SkMemberInfo* ai, int index) {
	SkOperand operand;
	bool result = getArrayCommon(ae, ai, index, &operand, SkType_Int);
	return result ? operand.fS32 : SK_NaN32;
	}

	int32_t SkAnimator::getArrayInt(const char* id, const char* fieldID, int index) {
	const SkDisplayable* element = getElement(id);
	if (element == NULL)
	return SK_NaN32;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return SK_NaN32;
	return getArrayInt(element, field, index);
	}

	SkScalar SkAnimator::getArrayScalar(const SkDisplayable* ae,
	const SkMemberInfo* ai, int index) {
	SkOperand operand;
	bool result = getArrayCommon(ae, ai, index, &operand, SkType_Float);
	return result ? operand.fScalar : SK_ScalarNaN;
	}

	SkScalar SkAnimator::getArrayScalar(const char* id, const char* fieldID, int index) {
	const SkDisplayable* element = getElement(id);
	if (element == NULL)
	return SK_ScalarNaN;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return SK_ScalarNaN;
	return getArrayScalar(element, field, index);
	}

	const char* SkAnimator::getArrayString(const SkDisplayable* ae,
	const SkMemberInfo* ai, int index) {
	SkOperand operand;
	bool result = getArrayCommon(ae, ai, index, &operand, SkType_String);
	return result ? operand.fString->c_str() : NULL;
	}

	const char* SkAnimator::getArrayString(const char* id, const char* fieldID, int index) {
	const SkDisplayable* element = getElement(id);
	if (element == NULL)
	return NULL;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return NULL;
	return getArrayString(element, field, index);
	}

	SkMSec SkAnimator::getInterval() {
	return fMaker->fMinimumInterval == (SkMSec) -1 ? 0 : fMaker->fMinimumInterval;
	}

	void SkAnimator::getInvalBounds(SkRect* inval) {
	if (fMaker->fDisplayList.fHasUnion) {
	inval->fLeft = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fLeft);
	inval->fTop = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fTop);
	inval->fRight = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fRight);
	inval->fBottom = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fBottom);
	} else {
	inval->fLeft = inval->fTop = -SK_ScalarMax;
	inval->fRight = inval->fBottom = SK_ScalarMax;
	}
	}

	const SkXMLParserError* SkAnimator::getParserError() {
	return &fMaker->fError;
	}

	const char* SkAnimator::getParserErrorString() {
	if (fMaker->fErrorString.size() == 0 && fMaker->fError.hasError())
	fMaker->setErrorString();
	return fMaker->fErrorString.c_str();
	}

	int32_t SkAnimator::getInt(const SkDisplayable* element, const SkMemberInfo* info) {
	if (info->fType != SkType_MemberProperty) {
	SkOperand operand;
	if (info->getType() == SkType_Int) {
	info->getValue(element, &operand, 1);
	return operand.fS32;
	}
	return SK_NaN32;
	}
	SkScriptValue scriptValue;
	bool success = element->getProperty(info->propertyIndex(), &scriptValue);
	if (success && scriptValue.fType == SkType_Int)
	return scriptValue.fOperand.fS32;
	return SK_NaN32;
	}

	int32_t SkAnimator::getInt(const char* id, const char* fieldID) {
	const SkDisplayable* element = getElement(id);
	if (element == NULL)
	return SK_NaN32;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return SK_NaN32;
	return getInt(element, field);
	}

	SkScalar SkAnimator::getScalar(const SkDisplayable* element, const SkMemberInfo* info) {
	if (info->fType != SkType_MemberProperty) {
	SkOperand operand;
	if (info->getType() == SkType_Float) {
	info->getValue(element, &operand, 1);
	return operand.fScalar;
	}
	return SK_ScalarNaN;
	}
	SkScriptValue scriptValue;
	bool success = element->getProperty(info->propertyIndex(), &scriptValue);
	if (success && scriptValue.fType == SkType_Float)
	return scriptValue.fOperand.fScalar;
	return SK_ScalarNaN;
	}

	SkScalar SkAnimator::getScalar(const char* id, const char* fieldID) {
	const SkDisplayable* element = getElement(id);
	if (element == NULL)
	return SK_ScalarNaN;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return SK_ScalarNaN;
	return getScalar(element, field);
	}

	const char* SkAnimator::getString(const SkDisplayable* ae,
	const SkMemberInfo* ai) {
	const SkDisplayable* element = (const SkDisplayable*) ae;
	const SkMemberInfo* info = (const SkMemberInfo*) ai;
	SkString* temp;
	info->getString(element, &temp);
	return temp->c_str();
	}

	const char* SkAnimator::getString(const char* id, const char* fieldID) {
	const SkDisplayable* element = getElement(id);
	if (element == NULL)
	return NULL;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return NULL;
	return getString(element, field);
	}

	const char* SkAnimator::getURIBase() {
	return fMaker->fPrefix.c_str();
	}

	void SkAnimator::initialize() {
	SkDELETE(fMaker);
	fMaker = SkNEW_ARGS(SkAnimateMaker, (this, NULL, NULL));
	decodeMemory(gMathPrimer, sizeof(gMathPrimer)-1);
	#ifdef SK_BUILD_FOR_ANDROID
	InitializeSkExtraPathEffects(this);
	#endif
	}


	#ifdef SK_DEBUG
	bool SkAnimator::isTrackingEvents() {
	return false;
	}
	#endif

	bool SkAnimator::onEvent(const SkEvent& evt) {
	#ifdef SK_DEBUG
	SkAnimator* root = fMaker->getRoot();
	if (root == NULL)
	root = this;
	if (root->isTrackingEvents())
	root->eventDone(evt);
	#endif
	if (evt.isType(SK_EventType_OnEnd)) {
	SkEventState eventState;
	bool success = evt.findPtr("anim", (void**) &eventState.fDisplayable);
	SkASSERT(success);
	success = evt.findS32("time", (int32_t*) &fMaker->fEnableTime);
	SkASSERT(success);
	fMaker->fAdjustedStart = fMaker->getAppTime() - fMaker->fEnableTime;
	fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kOnEnd, &eventState);
	fMaker->fAdjustedStart = 0;
	goto inval;
	}
	if (evt.isType(SK_EventType_Delay)) {
	fMaker->doDelayedEvent();
	goto inval;
	}
	{
	const char* id = evt.findString("id");
	if (id == NULL)
	return false;
	SkDisplayable** firstMovie = fMaker->fMovies.begin();
	SkDisplayable** endMovie = fMaker->fMovies.end();
	for (SkDisplayable** ptr = firstMovie; ptr < endMovie; ptr++) {
	SkDisplayMovie* movie = (SkDisplayMovie) ptr;
	movie->doEvent(evt);
	}
	{
	SkDisplayable* event;
	if (fMaker->find(id, &event) == false)
	return false;
	#if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
	SkString debugOut;
	SkMSec realTime = fMaker->getAppTime();
	debugOut.appendS32(realTime - fMaker->fDebugTimeBase);
	debugOut.append(" onEvent id=");
	debugOut.append(id);
	#endif
	SkMSec time = evt.getFast32();
	if (time != 0) {
	SkMSec app = fMaker->getAppTime();
	fMaker->setEnableTime(app, time);
	#if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
	debugOut.append(" time=");
	debugOut.appendS32(time - fMaker->fDebugTimeBase);
	debugOut.append(" adjust=");
	debugOut.appendS32(fMaker->fAdjustedStart);
	#endif
	}
	#if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
	SkDebugf("%s\n", debugOut.c_str());
	#endif
	SkASSERT(event->isEvent());
	SkDisplayEvent* displayEvent = (SkDisplayEvent*) event;
	displayEvent->populateInput(*fMaker, evt);
	displayEvent->enableEvent(*fMaker);
	}
	}
	inval:
	fMaker->notifyInval();
	return true;
	}

	void SkAnimator::onEventPost(SkEvent* evt, SkEventSinkID sinkID)
	{
	#ifdef SK_DEBUG
	SkAnimator* root = fMaker->getRoot();
	if (root) {
	root->onEventPost(evt, sinkID);
	return;
	}
	#else
	SkASSERT(sinkID == this->getSinkID() \|\| this->getHostEventSinkID() == sinkID);
	#endif
	evt->setTargetID(sinkID)->post();
	}

	void SkAnimator::onEventPostTime(SkEvent* evt, SkEventSinkID sinkID, SkMSec time)
	{
	#ifdef SK_DEBUG
	SkAnimator* root = fMaker->getRoot();
	if (root) {
	root->onEventPostTime(evt, sinkID, time);
	return;
	}
	#else
	SkASSERT(sinkID == this->getSinkID() \|\| this->getHostEventSinkID() == sinkID);
	#endif
	evt->setTargetID(sinkID)->postTime(time);
	}

	void SkAnimator::reset() {
	fMaker->fDisplayList.reset();
	}

	SkEventSinkID SkAnimator::getHostEventSinkID() const {
	return fMaker->fHostEventSinkID;
	}

	void SkAnimator::setHostEventSinkID(SkEventSinkID target) {
	fMaker->fHostEventSinkID = target;
	}

	void SkAnimator::onSetHostHandler(Handler ) {
	}

	void SkAnimator::setJavaOwner(Handler ) {
	}

	bool SkAnimator::setArrayString(const char* id, const char* fieldID, const char** array, int num)
	{
	SkTypedArray tArray(SkType_String);
	tArray.setCount(num);
	for (int i = 0; i < num; i++) {
	SkOperand op;
	op.fString = new SkString(array[i]);
	tArray[i] = op;
	}
	return setArray(id, fieldID, tArray);
	}
	bool SkAnimator::setArrayInt(const char* id, const char* fieldID, const int* array, int num)
	{
	SkTypedArray tArray(SkType_Int);
	tArray.setCount(num);
	for (int i = 0; i < num; i++) {
	SkOperand op;
	op.fS32 = array[i];
	tArray[i] = op;
	}
	return setArray(id, fieldID, tArray);
	}

	bool SkAnimator::setArray(SkDisplayable* element, const SkMemberInfo* info, SkTypedArray array) {
	if (info->fType != SkType_Array)
	return false; //the field is not an array
	//i think we can handle the case where the displayable itself is an array differently from the
	//case where it has an array - for one thing, if it is an array, i think we can change its type
	//if it's not, we cannot
	SkDisplayTypes type = element->getType();
	if (type == SkType_Array) {
	SkDisplayArray* dispArray = (SkDisplayArray*) element;
	dispArray->values = array;
	return true;
	}
	else
	return false; //currently i don't care about this case
	}

	bool SkAnimator::setArray(const char* id, const char* fieldID, SkTypedArray array) {
	SkDisplayable* element = (SkDisplayable*) getElement(id);
	//should I go ahead and change all 'NULL's to 'NULL'?
	if (element == NULL)
	return false;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return false;
	return setArray(element, field, array);
	}

	bool SkAnimator::setInt(SkDisplayable* element, const SkMemberInfo* info, int32_t s32) {
	if (info->fType != SkType_MemberProperty) {
	SkOperand operand;
	operand.fS32 = s32;
	SkASSERT(info->getType() == SkType_Int);
	info->setValue(element, &operand, 1);
	} else {
	SkScriptValue scriptValue;
	scriptValue.fType = SkType_Int;
	scriptValue.fOperand.fS32 = s32;
	element->setProperty(info->propertyIndex(), scriptValue);
	}
	return true;
	}

	bool SkAnimator::setInt(const char* id, const char* fieldID, int32_t s32) {
	SkDisplayable* element = (SkDisplayable*) getElement(id);
	if (element == NULL)
	return false;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return false;
	return setInt(element, field, s32);
	}

	bool SkAnimator::setScalar(SkDisplayable* element, const SkMemberInfo* info, SkScalar scalar) {
	if (info->fType != SkType_MemberProperty) {
	SkOperand operand;
	operand.fScalar = scalar;
	SkASSERT(info->getType() == SkType_Float);
	info->setValue(element, &operand, 1);
	} else {
	SkScriptValue scriptValue;
	scriptValue.fType = SkType_Float;
	scriptValue.fOperand.fScalar = scalar;
	element->setProperty(info->propertyIndex(), scriptValue);
	}
	return true;
	}

	bool SkAnimator::setScalar(const char* id, const char* fieldID, SkScalar scalar) {
	SkDisplayable* element = (SkDisplayable*) getElement(id);
	if (element == NULL)
	return false;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return false;
	return setScalar(element, field, scalar);
	}

	bool SkAnimator::setString(SkDisplayable* element,
	const SkMemberInfo* info, const char* str) {
	// !!! until this is fixed, can't call script with global references from here
	info->setValue(*fMaker, NULL, 0, info->fCount, element, info->getType(), str, strlen(str));
	return true;
	}

	bool SkAnimator::setString(const char* id, const char* fieldID, const char* str) {
	SkDisplayable* element = (SkDisplayable*) getElement(id);
	if (element == NULL)
	return false;
	const SkMemberInfo* field = getField(element, fieldID);
	if (field == NULL)
	return false;
	return setString(element, field, str);
	}

	void SkAnimator::setTimeline(const Timeline& timeline) {
	fMaker->fTimeline = &timeline;
	}

	void SkAnimator::setURIBase(const char* uri) {
	if (uri)
	{
	const char* tail = strrchr(uri, '/');
	if (tail) {
	SkString prefix(uri, tail - uri + 1);
	if (uri[0] != '.' /SkStream::IsAbsoluteURI(uri)/)
	fMaker->fPrefix.reset();
	fMaker->fPrefix.append(prefix);
	fMaker->fFileName.set(tail + 1);
	} else
	fMaker->fFileName.set(uri);
	}
	}

	#ifdef SK_DEBUG
	bool SkAnimator::NoLeaks() {
	#ifdef SK_BUILD_FOR_MAC
	if (SkDisplayable::fAllocations.count() == 0)
	return true;
	// return SkDisplayable::fAllocationCount == 0;
	SkDebugf("!!! leaked %d displayables:\n", SkDisplayable::fAllocations.count());
	for (SkDisplayable** leak = SkDisplayable::fAllocations.begin(); leak < SkDisplayable::fAllocations.end(); leak++)
	SkDebugf("%08x %s\n", leak, (leak)->id);
	#endif
	return false;
	}
	#endif

	#ifdef SK_SUPPORT_UNITTEST
	#include "SkAnimatorScript.h"
	#include "SkBase64.h"
	#include "SkParse.h"
	#include "SkMemberInfo.h"

	#define unittestline(type) { #type , type::UnitTest }
	#endif


	void SkAnimator::Init(bool runUnitTests) {
	#ifdef SK_SUPPORT_UNITTEST
	if (runUnitTests == false)
	return;
	static const struct {
	const char* fTypeName;
	void (*fUnitTest)( );
	} gUnitTests[] = {
	unittestline(SkBase64),
	unittestline(SkDisplayType),
	unittestline(SkParse),
	unittestline(SkScriptEngine),
	// unittestline(SkScriptEngine2), // compiled script experiment
	unittestline(SkAnimatorScript)
	};
	for (int i = 0; i < (int)SK_ARRAY_COUNT(gUnitTests); i++)
	{
	SkDebugf("SkAnimator: Running UnitTest for %s\n", gUnitTests[i].fTypeName);
	gUnitTests[i].fUnitTest();
	SkDebugf("SkAnimator: End UnitTest for %s\n", gUnitTests[i].fTypeName);
	}
	#endif
	}

	void SkAnimator::Term() {
	}