C++ SkString::set方法代码示例

void SampleWindow::updateTitle() {
    SkString title;

    SkView::F2BIter iter(this);
    SkView* view = iter.next();
    SkEvent evt(gTitleEvtName);
    if (view->doQuery(&evt)) {
        title.set(evt.findString(gTitleEvtName));
    }
    if (title.size() == 0) {
        title.set("<unknown>");
    }

    title.prepend(gCanvasTypePrefix[fCanvasType]);

    title.prepend(" ");
    title.prepend(configToString(this->getBitmap().config()));

    if (fAnimating) {
        title.prepend("<A> ");
    }
    if (fScale) {
        title.prepend("<S> ");
    }
    if (fRotate) {
        title.prepend("<R> ");
    }
    if (fNClip) {
        title.prepend("<C> ");
    }
    this->setTitle(title.c_str());
}

 SkString BaseName() override {
     SkString name;
     if (fInfo.gammaCloseToSRGB()) {
         name.set("sRGB");
     } else {
         name.set("Linr");
     }
     return name;
 }

    TextBench(void* param, const char text[], int ps,
              SkColor color, FontQuality fq, bool doPos = false) : INHERITED(param) {
        fPos = NULL;
        fFQ = fq;
        fDoPos = doPos;
        fText.set(text);

        fPaint.setAntiAlias(kBW != fq);
        fPaint.setLCDRenderText(kLCD == fq);
        fPaint.setTextSize(SkIntToScalar(ps));
        fPaint.setColor(color);

        if (doPos) {
            size_t len = strlen(text);
            SkScalar* adv = new SkScalar[len];
            fPaint.getTextWidths(text, len, adv);
            fPos = new SkPoint[len];
            SkScalar x = 0;
            for (size_t i = 0; i < len; ++i) {
                fPos[i].set(x, SkIntToScalar(50));
                x += adv[i];
            }
            delete[] adv;
        }
    }

    VertBench() {
        const SkScalar dx = SkIntToScalar(W) / COL;
        const SkScalar dy = SkIntToScalar(H) / COL;

        SkPoint* pts = fPts;
        uint16_t* idx = fIdx;

        SkScalar yy = 0;
        for (int y = 0; y <= ROW; y++) {
            SkScalar xx = 0;
            for (int x = 0; x <= COL; ++x) {
                pts->set(xx, yy);
                pts += 1;
                xx += dx;

                if (x < COL && y < ROW) {
                    load_2_tris(idx, x, y, COL + 1);
                    for (int i = 0; i < 6; i++) {
                        SkASSERT(idx[i] < PTS);
                    }
                    idx += 6;
                }
            }
            yy += dy;
        }
        SkASSERT(PTS == pts - fPts);
        SkASSERT(IDX == idx - fIdx);

        SkRandom rand;
        for (int i = 0; i < PTS; ++i) {
            fColors[i] = rand.nextU() | (0xFF << 24);
        }

        fName.set("verts");
    }

int tool_main(int argc, char** argv) {
    SkCommandLineFlags::SetUsage("Parse and Render .pdf files (pdf viewer).");
    SkCommandLineFlags::Parse(argc, argv);

    if (FLAGS_readPath.isEmpty()) {
        SkDebugf(".pdf files or directories are required.\n");
        exit(-1);
    }

    SkString outputDir;
    if (FLAGS_writePath.count() == 1) {
        outputDir.set(FLAGS_writePath[0]);
    }

    int failures = 0;
    for (int i = 0; i < FLAGS_readPath.count(); i ++) {
        failures += process_input(FLAGS_readPath[i], outputDir);
    }

    reportPdfRenderStats();

    if (failures != 0) {
        SkDebugf("Failed to render %i PDFs.\n", failures);
        return 1;
    }

    return 0;
}

void SkDisplayEvent::dumpEvent(SkAnimateMaker* maker) {
    dumpBase(maker);
    SkString str;
    SkDump::GetEnumString(SkType_EventKind, kind, &str);
    SkDebugf("kind=\"%s\" ", str.c_str());
    if (kind == SkDisplayEvent::kKeyPress || kind == SkDisplayEvent::kKeyPressUp) {
        if (code >= 0)
            SkDump::GetEnumString(SkType_EventCode, code, &str);
        else
            str.set("none");
        SkDebugf("code=\"%s\" ", str.c_str());
    }
    if (kind == SkDisplayEvent::kKeyChar) {
        if (fMax != (SkKey) -1 && fMax != code)
            SkDebugf("keys=\"%c - %c\" ", code, fMax);
        else
            SkDebugf("key=\"%c\" ", code);
    }
    if (fTarget != NULL) {
        SkDebugf("target=\"%s\" ", fTarget->id);
    }
    if (kind >= SkDisplayEvent::kMouseDown && kind <= SkDisplayEvent::kMouseUp) {
        SkDebugf("x=\"%g\" y=\"%g\" ", SkScalarToFloat(x), SkScalarToFloat(y));
    }
    if (disable)
        SkDebugf("disable=\"true\" ");
    SkDebugf("/>\n");
}

/**
 * Use the current system locale (language and region) to open the best matching
 * customization. For example, when the language is Japanese, the sequence might be:
 *      /system/etc/fallback_fonts-ja-JP.xml
 *      /system/etc/fallback_fonts-ja.xml
 *      /system/etc/fallback_fonts.xml
 */
FILE* openLocalizedFile(const char* origname) {
    FILE* file = 0;

#if !defined(SK_BUILD_FOR_ANDROID_NDK)
    SkString basename;
    SkString filename;
    char language[3] = "";
    char region[3] = "";

    basename.set(origname);
    // Remove the .xml suffix. We'll add it back in a moment.
    if (basename.endsWith(".xml")) {
        basename.resize(basename.size()-4);
    }
    getLocale(language, region);
    // Try first with language and region
    filename.printf("%s-%s-%s.xml", basename.c_str(), language, region);
    file = fopen(filename.c_str(), "r");
    if (!file) {
        // If not found, try next with just language
        filename.printf("%s-%s.xml", basename.c_str(), language);
        file = fopen(filename.c_str(), "r");
    }
#endif

    if (!file) {
        // If still not found, try just the original name
        file = fopen(origname, "r");
    }
    return file;
}

/**
 * This function parses the given filename and stores the results in the given
 * families array.
 */
static void parseConfigFile(const char *filename, SkTDArray<FontFamily*> &families) {

    FILE* file = NULL;

#if !defined(SK_BUILD_FOR_ANDROID_FRAMEWORK)
    // if we are using a version of Android prior to Android 4.2 (JellyBean MR1
    // at API Level 17) then we need to look for files with a different suffix.
    char sdkVersion[PROP_VALUE_MAX];
    __system_property_get("ro.build.version.sdk", sdkVersion);
    const int sdkVersionInt = atoi(sdkVersion);

    if (0 != *sdkVersion && sdkVersionInt < 17) {
        SkString basename;
        SkString updatedFilename;
        SkString locale = SkFontConfigParser::GetLocale();

        basename.set(filename);
        // Remove the .xml suffix. We'll add it back in a moment.
        if (basename.endsWith(".xml")) {
            basename.resize(basename.size()-4);
        }
        // Try first with language and region
        updatedFilename.printf("%s-%s.xml", basename.c_str(), locale.c_str());
        file = fopen(updatedFilename.c_str(), "r");
        if (!file) {
            // If not found, try next with just language
            updatedFilename.printf("%s-%.2s.xml", basename.c_str(), locale.c_str());
            file = fopen(updatedFilename.c_str(), "r");
        }
    }
#endif

    if (NULL == file) {
        file = fopen(filename, "r");
    }

    // Some of the files we attempt to parse (in particular, /vendor/etc/fallback_fonts.xml)
    // are optional - failure here is okay because one of these optional files may not exist.
    if (NULL == file) {
        return;
    }

    XML_Parser parser = XML_ParserCreate(NULL);
    FamilyData *familyData = new FamilyData(&parser, families);
    XML_SetUserData(parser, familyData);
    XML_SetElementHandler(parser, startElementHandler, endElementHandler);

    char buffer[512];
    bool done = false;
    while (!done) {
        fgets(buffer, sizeof(buffer), file);
        int len = strlen(buffer);
        if (feof(file) != 0) {
            done = true;
        }
        XML_Parse(parser, buffer, len, done);
    }
    XML_ParserFree(parser);
    fclose(file);
}

/**
 * Use the current system locale (language and region) to open the best matching
 * customization. For example, when the language is Japanese, the sequence might be:
 *      /system/etc/fallback_fonts-ja-JP.xml
 *      /system/etc/fallback_fonts-ja.xml
 *      /system/etc/fallback_fonts.xml
 */
FILE* openLocalizedFile(const char* origname) {
    FILE* file = 0;
    SkString basename;
    SkString filename;
    AndroidLocale locale;

    basename.set(origname);
    // Remove the .xml suffix. We'll add it back in a moment.
    if (basename.endsWith(".xml")) {
        basename.resize(basename.size()-4);
    }
    getLocale(locale);
    // Try first with language and region
    filename.printf("%s-%s-%s.xml", basename.c_str(), locale.language, locale.region);
    file = fopen(filename.c_str(), "r");
    if (!file) {
        // If not found, try next with just language
        filename.printf("%s-%s.xml", basename.c_str(), locale.language);
        file = fopen(filename.c_str(), "r");

        if (!file) {
            // If still not found, try just the original name
            file = fopen(origname, "r");
        }
    }
    return file;
}

    ShaderMaskBench(bool isOpaque, FontQuality fq)  {
        fFQ = fq;
        fText.set(STR);

        fPaint.setAntiAlias(kBW != fq);
        fPaint.setLCDRenderText(kLCD == fq);
        fPaint.setShader(SkShader::MakeColorShader(isOpaque ? 0xFFFFFFFF : 0x80808080));
    }

    ShaderMaskBench(void* param, bool isOpaque, FontQuality fq) : INHERITED(param) {
        fFQ = fq;
        fText.set(STR);

        fPaint.setAntiAlias(kBW != fq);
        fPaint.setLCDRenderText(kLCD == fq);
        fPaint.setAlpha(isOpaque ? 0xFF : 0x80);
        fPaint.setShader(new SkColorShader)->unref();
    }

 TalkGM(int index, bool showGL, int flags = 0) {
     fProc = gRec[index].fProc;
     fName.set(gRec[index].fName);
     if (showGL) {
         fName.append("-gl");
     }
     fShowGL = showGL;
     fFlags = flags;
 }

/**
 * This function is the sink to which all work ends up going.
 * Renders the picture into the renderer. It may or may not use an RTree.
 * The renderer is chosen upstream. If we want to measure recording, we will
 * use a RecordPictureRenderer. If we want to measure rendering, we eill use a
 * TiledPictureRenderer.
 */
static void do_benchmark_work(sk_tools::PictureRenderer* renderer,
        int benchmarkType, const SkString& path, SkPicture* pic,
        const int numRepeats, const char *msg, BenchTimer* timer) {
    SkString msgPrefix;

    switch (benchmarkType){
        case kNormal_BenchmarkType:
            msgPrefix.set("Normal");
            renderer->setBBoxHierarchyType(sk_tools::PictureRenderer::kNone_BBoxHierarchyType);
            break;
        case kRTree_BenchmarkType:
            msgPrefix.set("RTree");
            renderer->setBBoxHierarchyType(sk_tools::PictureRenderer::kRTree_BBoxHierarchyType);
            break;
        default:
            SkASSERT(0);
            break;
    }

    renderer->init(pic);

    /**
     * If the renderer is not tiled, assume we are measuring recording.
     */
    bool isPlayback = (NULL != renderer->getTiledRenderer());

    SkDebugf("%s %s %s %d times...\n", msgPrefix.c_str(), msg, path.c_str(), numRepeats);
    for (int i = 0; i < numRepeats; ++i) {
        renderer->setup();
        // Render once to fill caches.
        renderer->render(NULL);
        // Render again to measure
        timer->start();
        bool result = renderer->render(NULL);
        timer->end();
        // We only care about a false result on playback. RecordPictureRenderer::render will always
        // return false because we are passing a NULL file name on purpose; which is fine.
        if(isPlayback && !result) {
            SkDebugf("Error rendering during playback.\n");
        }
    }
    renderer->end();
}

template<typename T> bool SkRTConfRegistry::parse(const char *name, T* value) {
    SkString *str = NULL;

    for (int i = fConfigFileKeys.count() - 1 ; i >= 0; i--) {
        if (fConfigFileKeys[i]->equals(name)) {
            str = fConfigFileValues[i];
            break;
        }
    }

    SkString environment_variable("skia.");
    environment_variable.append(name);

    const char *environment_value = getenv(environment_variable.c_str());
    if (environment_value) {
        str->set(environment_value);
    } else {
        // apparently my shell doesn't let me have environment variables that
        // have periods in them, so also let the user substitute underscores.
        SkString underscore_environment_variable("skia_");
        char *underscore_name = SkStrDup(name);
        str_replace(underscore_name,'.','_');
        underscore_environment_variable.append(underscore_name);
        sk_free(underscore_name);
        environment_value = getenv(underscore_environment_variable.c_str());
        if (environment_value) {
            str->set(environment_value);
        }
    }

    if (!str) {
        return false;
    }

    bool success;
    T new_value = doParse<T>(str->c_str(),&success);
    if (success) {
        *value = new_value;
    } else {
        SkDebugf("WARNING: Couldn't parse value \'%s\' for variable \'%s\'\n", str->c_str(), name);
    }
    return success;
}

    virtual const char* onGetName() {
        fFullName.set(INHERITED::onGetName());
        if (fScale)
            fFullName.append("_scale");
        if (fRotate)
            fFullName.append("_rotate");
        if (fFilter)
            fFullName.append("_filter");

        return fFullName.c_str();
    }