C++ SkTDArray::begin方法代码示例

bool SkAnimatorScript::IsFinite(const char* function, size_t len, SkTDArray<SkScriptValue>& params,
        void* eng, SkScriptValue* value) {
    if (SK_LITERAL_STR_EQUAL(function, "isFinite", len) == false)
        return false;
    if (params.count() != 1)
        return false;
    SkScriptValue* scriptValue = params.begin();
    SkDisplayTypes type = scriptValue->fType;
    SkScalar scalar = scriptValue->fOperand.fScalar;
    value->fType = SkType_Int;
    value->fOperand.fS32 = type == SkType_Float ? SkScalarIsNaN(scalar) == false &&
        SkScalarAbs(scalar) != SK_ScalarInfinity    : type == SkType_Int;
    return true;
}

static void add_name(const char name[], FamilyRec* family) {
    SkAutoAsciiToLC tolc(name);
    name = tolc.lc();

    NameFamilyPair* list = gNameList.begin();
    int             count = gNameList.count();

    int index = SkStrLCSearch(&list[0].fName, count, name, sizeof(list[0]));

    if (index < 0) {
        list = gNameList.insert(~index);
        list->construct(name, family);
    }
}

    virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
        for (Draw** iter = fList.begin(); iter < fList.end(); iter++) {
            (*iter)->setSelected(false);
        }

        Click* c = new Click(this);
        Draw* d = this->hitTestList(x, y);
        if (d) {
            d->setSelected(true);
            c->setType("dragger");
        } else {
            c->setType("maker");
        }
        return c;
    }

static bool contains_only_moveTo(const SkPath& path) {
    int verbCount = path.countVerbs();
    if (verbCount == 0) {
        return true;
    }
    SkTDArray<uint8_t> verbs;
    verbs.setCount(verbCount);
    SkDEBUGCODE(int getVerbResult = ) path.getVerbs(verbs.begin(), verbCount);
    SkASSERT(getVerbResult == verbCount);
    for (int index = 0; index < verbCount; ++index) {
        if (verbs[index] != SkPath::kMove_Verb) {
            return false;
        }
    }
    return true;
}

    static void drawdots(SkCanvas* canvas, const SkPaint& orig) {
        SkTDArray<SkPoint> pts;
        SkPathEffect* pe = makepe(0, &pts);

        SkScalar width = -1;
        SkPath path, dstPath;
        orig.getTextPath("9", 1, 0, 0, &path);
        pe->filterPath(&dstPath, path, &width);

        SkPaint p;
        p.setAntiAlias(true);
        p.setStrokeWidth(10);
        p.setColor(SK_ColorRED);
        canvas->drawPoints(SkCanvas::kPoints_PointMode, pts.count(), pts.begin(),
                           p);
    }

void SampleWindow::loadView(SkView* view) {
    SkView::F2BIter iter(this);
    SkView* prev = iter.next();
    if (prev) {
        prev->detachFromParent();
    }

    if (NULL == view) {
        view = create_overview(fSamples.count(), fSamples.begin());
    }
    view->setVisibleP(true);
    this->attachChildToFront(view)->unref();
    view->setSize(this->width(), this->height());

    this->updateTitle();
}

        virtual void onDraw(SkCanvas* canvas)
            {
            this->drawBG(canvas);
            test_clearonlayers(canvas);
            return;
            //   test_strokerect(canvas); return;

            for (Draw** iter = fList.begin(); iter < fList.end(); iter++)
                {
                (*iter)->draw(canvas);
                }
            if (fDraw)
                {
                fDraw->draw(canvas);
                }
            }

template <typename T> void SkRTConfRegistry::set(const char *name, T value) {

    SkTDArray<SkRTConfBase *> *confArray;
    if (!fConfs.find(name, &confArray)) {
        SkDebugf("WARNING: Attempting to set configuration value \"%s\", but I've never heard of that.\n", name);
        return;
    }

    for (SkRTConfBase **confBase = confArray->begin(); confBase != confArray->end(); confBase++) {
        // static_cast here is okay because there's only one kind of child class.
        SkRTConf<T> *concrete = static_cast<SkRTConf<T> *>(*confBase);

        if (concrete) {
            concrete->set(value);
        }
    }
}

Trapezoid* ActiveTrapezoids::getTrapezoidWithEdge(const Vertex *edge) {
    DebugPrintf("Entering getTrapezoidWithEdge(): looking through %d\n",
           fTrapezoids.count());
    DebugPrintf("trying to find %p: ", edge);
    Trapezoid **tp;
    for (tp = fTrapezoids.begin(); tp < fTrapezoids.end(); ++tp) {
        SkASSERT(tp != NULL);
        SkASSERT(*tp != NULL);
        DebugPrintf("%p and %p, ", (**tp).left(), (**tp).right());
        if ((**tp).left() == edge || (**tp).right() == edge) {
            DebugPrintf("\ngetTrapezoidWithEdge found the trapezoid\n");
            return *tp;
        }
    }
    DebugPrintf("getTrapezoidWithEdge found no trapezoid\n");
    return NULL;
}

bool SkAnimatorScript::Eval(const char* function, size_t len, SkTDArray<SkScriptValue>& params,
        void* eng, SkScriptValue* value) {
    if (SK_LITERAL_STR_EQUAL("eval", function, len) == false)
        return false;
    if (params.count() != 1)
        return false;
    SkAnimatorScript* host = (SkAnimatorScript*) eng;
    SkAnimatorScript engine(host->fMaker, host->fWorking, SkScriptEngine::ToDisplayType(host->fReturnType));
    SkScriptValue* scriptValue = params.begin();
    bool success = true;
    if (scriptValue->fType == SkType_String) {
        const char* script = scriptValue->fOperand.fString->c_str();
        success = engine.evaluateScript(&script, value);
    } else
        *value = *scriptValue;
    return success;
}

int SkPictureRecord::find(SkTDArray<const SkFlatPaint* >& paints, const SkPaint* paint) {
    if (paint == NULL) {
        return 0;
    }

    SkFlatPaint* flat = SkFlatPaint::Flatten(&fHeap, *paint, fPaintIndex,
                                             &fRCSet, &fTFSet);
    int index = SkTSearch<SkFlatData>((const SkFlatData**) paints.begin(),
        paints.count(), (SkFlatData*) flat, sizeof(flat), &SkFlatData::Compare);
    if (index >= 0) {
        (void)fHeap.unalloc(flat);
        return paints[index]->index();
    }

    index = ~index;
    *paints.insert(index) = flat;
    return fPaintIndex++;
}

bool SkAnimatorScript::EvalRGB(const char* function, size_t len, SkTDArray<SkScriptValue>& params,
        void* eng, SkScriptValue* value) {
    if (SK_LITERAL_STR_EQUAL("rgb", function, len) == false)
        return false;
    if (params.count() != 3)
        return false;
    SkScriptEngine* engine = (SkScriptEngine*) eng;
    unsigned result = 0xFF000000;
    int shift = 16;
    for (SkScriptValue* valuePtr = params.begin(); valuePtr < params.end(); valuePtr++) {
        engine->convertTo(SkType_Int, valuePtr);
        result |= SkClampMax(valuePtr->fOperand.fS32, 255) << shift;
        shift -= 8;
    }
    value->fOperand.fS32 = result;
    value->fType = SkType_Int;
    return true;
}

        virtual bool onClick(Click* click)
            {
            if (Click::kUp_State == click->fState)
                {
                if (click->isType("maker"))
                    {
                    if (SkPoint::Distance(click->fOrig, click->fCurr) > SkIntToScalar(3))
                        {
                        *fList.append() = fDraw;
                        }
                    else
                        {
                        fDraw->unref();
                        }
                    fDraw = NULL;
                    }
                return true;
                }

            if (Click::kDown_State == click->fState)
                {
                SkPaint p = fFactory->getPaint();
                p.setColor(this->randColor());
                fFactory->setPaint(p);
                }

            if (click->isType("maker"))
                {
                this->setDraw(fFactory->create(click->fOrig, click->fCurr))->unref();
                }
            else if (click->isType("dragger"))
                {
                for (Draw** iter = fList.begin(); iter < fList.end(); iter++)
                    {
                    if ((*iter)->isSelected())
                        {
                        (*iter)->offset(click->fCurr.x() - click->fPrev.x(),
                                        click->fCurr.y() - click->fPrev.y());
                        }
                    }
                }
            this->inval(NULL);
            return true;
            }

 static void draw_path(SkCanvas* canvas, const SkPaint& pathPaint,
                       const SkPath& path, const SkPaint& triPaint) {
     canvas->drawPath(path, pathPaint);
     
     int n = path.getPoints(NULL, 0);
     SkPoint* pts = new SkPoint[n];
     path.getPoints(pts, n);
     
     SkTDArray<SkPoint> triangles;
     if (SkConcaveToTriangles(n, pts, &triangles)) {
         canvas->drawVertices(SkCanvas::kTriangles_VertexMode,
                              triangles.count(), triangles.begin(), NULL,
                              NULL, NULL, NULL, 0, triPaint);
     }
     
     SkPaint paint;
     paint.setColor(SK_ColorGREEN);
     paint.setStrokeWidth(SkIntToScalar(4));
     canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, paint);
     delete[] pts;
 }

    void onDraw(int loops, SkCanvas* canvas) override {
        SkPaint paint;
        this->setupPaint(&paint);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeWidth(SkIntToScalar(fWidth));
        paint.setAntiAlias(false);

        SkPath path;
        this->makePath(&path);

        paint.setPathEffect(SkDashPathEffect::Create(fIntervals.begin(),
                                                     fIntervals.count(), 0))->unref();

        if (fDoClip) {
            SkRect r = path.getBounds();
            r.inset(-SkIntToScalar(20), -SkIntToScalar(20));
            // now move it so we don't intersect
            r.offset(0, r.height() * 3 / 2);
            canvas->clipRect(r);
        }

        this->handlePath(canvas, path, paint, loops);
    }