C++ SkPaint::getPosTextPath方法代码示例

本文整理汇总了C++中SkPaint::getPosTextPath方法的典型用法代码示例。如果您正苦于以下问题：C++ SkPaint::getPosTextPath方法的具体用法？C++ SkPaint::getPosTextPath怎么用？C++ SkPaint::getPosTextPath使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SkPaint的用法示例。

在下文中一共展示了SkPaint::getPosTextPath方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: GetSkTypeface

SkPath
ScaledFontBase::GetSkiaPathForGlyphs(const GlyphBuffer &aBuffer)
{
  SkTypeface *typeFace = GetSkTypeface();
  MOZ_ASSERT(typeFace);

  SkPaint paint;
  paint.setTypeface(typeFace);
  paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
  paint.setTextSize(SkFloatToScalar(mSize));

  std::vector<uint16_t> indices;
  std::vector<SkPoint> offsets;
  indices.resize(aBuffer.mNumGlyphs);
  offsets.resize(aBuffer.mNumGlyphs);

  for (unsigned int i = 0; i < aBuffer.mNumGlyphs; i++) {
    indices[i] = aBuffer.mGlyphs[i].mIndex;
    offsets[i].fX = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.x);
    offsets[i].fY = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.y);
  }

  SkPath path;
  paint.getPosTextPath(&indices.front(), aBuffer.mNumGlyphs*2, &offsets.front(), &path);
  return path;
}

开发者ID:hoosteeno，项目名称:gecko-dev，代码行数:26，代码来源:ScaledFontBase.cpp

示例2: onDraw

    virtual void onDraw(SkCanvas* canvas) {
        // explicitly add spaces, to test a prev. bug
        const char* text = "Ham bur ge fons";
        int len = SkToInt(strlen(text));
        SkPath path;

        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setTextSize(SkIntToScalar(48));

        canvas->translate(SkIntToScalar(10), SkIntToScalar(64));

        canvas->drawText(text, len, 0, 0, paint);
        paint.getTextPath(text, len, 0, 0, &path);
        strokePath(canvas, path);
        path.reset();

        SkAutoTArray<SkPoint>  pos(len);
        SkAutoTArray<SkScalar> widths(len);
        paint.getTextWidths(text, len, &widths[0]);

        SkLCGRandom rand;
        SkScalar x = SkIntToScalar(20);
        SkScalar y = SkIntToScalar(100);
        for (int i = 0; i < len; ++i) {
            pos[i].set(x, y + rand.nextSScalar1() * 24);
            x += widths[i];
        }

        canvas->translate(0, SkIntToScalar(64));

        canvas->drawPosText(text, len, &pos[0], paint);
        paint.getPosTextPath(text, len, &pos[0], &path);
        strokePath(canvas, path);
    }

开发者ID:Adenilson，项目名称:skia，代码行数:35，代码来源:getpostextpath.cpp

示例3: PathSkia

TemporaryRef<Path>
ScaledFontSkia::GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget)
{
  if (aTarget->GetType() != BACKEND_SKIA) {
    return NULL;
  }

  SkPaint paint;
  paint.setTypeface(mTypeface);
  paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
  paint.setTextSize(SkFloatToScalar(mSize));
  
  std::vector<uint16_t> indices;
  std::vector<SkPoint> offsets;
  indices.resize(aBuffer.mNumGlyphs);
  offsets.resize(aBuffer.mNumGlyphs);

  for (unsigned int i = 0; i < aBuffer.mNumGlyphs; i++) {
    indices[i] = aBuffer.mGlyphs[i].mIndex;
    offsets[i].fX = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.x);
    offsets[i].fY = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.y);
  }

  SkPath path;
  paint.getPosTextPath(&indices.front(), aBuffer.mNumGlyphs*2, &offsets.front(), &path);
  return new PathSkia(path, FILL_WINDING);
}

开发者ID:krad-radio，项目名称:mozilla-krad，代码行数:27，代码来源:ScaledFontSkia.cpp

示例4: PathSkia

TemporaryRef<Path>
ScaledFontBase::GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget)
{
#ifdef USE_SKIA
  if (aTarget->GetType() == BACKEND_SKIA) {
    SkPaint paint;
    paint.setTypeface(GetSkTypeface());
    paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
    paint.setTextSize(SkFloatToScalar(mSize));

    std::vector<uint16_t> indices;
    std::vector<SkPoint> offsets;
    indices.resize(aBuffer.mNumGlyphs);
    offsets.resize(aBuffer.mNumGlyphs);

    for (unsigned int i = 0; i < aBuffer.mNumGlyphs; i++) {
      indices[i] = aBuffer.mGlyphs[i].mIndex;
      offsets[i].fX = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.x);
      offsets[i].fY = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.y);
    }

    SkPath path;
    paint.getPosTextPath(&indices.front(), aBuffer.mNumGlyphs*2, &offsets.front(), &path);
    return new PathSkia(path, FILL_WINDING);
  }
#endif
#ifdef USE_CAIRO
  if (aTarget->GetType() == BACKEND_CAIRO) {
    MOZ_ASSERT(mScaledFont);

    RefPtr<PathBuilder> builder_iface = aTarget->CreatePathBuilder();
    PathBuilderCairo* builder = static_cast<PathBuilderCairo*>(builder_iface.get());

    // Manually build the path for the PathBuilder.
    RefPtr<CairoPathContext> context = builder->GetPathContext();

    cairo_set_scaled_font(*context, mScaledFont);

    // Convert our GlyphBuffer into an array of Cairo glyphs.
    std::vector<cairo_glyph_t> glyphs(aBuffer.mNumGlyphs);
    for (uint32_t i = 0; i < aBuffer.mNumGlyphs; ++i) {
      glyphs[i].index = aBuffer.mGlyphs[i].mIndex;
      glyphs[i].x = aBuffer.mGlyphs[i].mPosition.x;
      glyphs[i].y = aBuffer.mGlyphs[i].mPosition.y;
    }

    cairo_glyph_path(*context, &glyphs[0], aBuffer.mNumGlyphs);

    return builder->Finish();
  }
#endif
  return NULL;
}

开发者ID:Anachid，项目名称:mozilla-central，代码行数:53，代码来源:ScaledFontBase.cpp

示例5: PathSkia

TemporaryRef<Path>
ScaledFontBase::GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget)
{
#ifdef USE_SKIA
  if (aTarget->GetType() == BACKEND_SKIA) {
    SkPaint paint;
    paint.setTypeface(GetSkTypeface());
    paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
    paint.setTextSize(SkFloatToScalar(mSize));

    std::vector<uint16_t> indices;
    std::vector<SkPoint> offsets;
    indices.resize(aBuffer.mNumGlyphs);
    offsets.resize(aBuffer.mNumGlyphs);

    for (unsigned int i = 0; i < aBuffer.mNumGlyphs; i++) {
      indices[i] = aBuffer.mGlyphs[i].mIndex;
      offsets[i].fX = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.x);
      offsets[i].fY = SkFloatToScalar(aBuffer.mGlyphs[i].mPosition.y);
    }

    SkPath path;
    paint.getPosTextPath(&indices.front(), aBuffer.mNumGlyphs*2, &offsets.front(), &path);
    return new PathSkia(path, FILL_WINDING);
  }
#endif
#ifdef USE_CAIRO
  if (aTarget->GetType() == BACKEND_CAIRO) {
    MOZ_ASSERT(mScaledFont);

    DrawTarget *dt = const_cast<DrawTarget*>(aTarget);
    cairo_t *ctx = static_cast<cairo_t*>(dt->GetNativeSurface(NATIVE_SURFACE_CAIRO_CONTEXT));

    bool isNewContext = !ctx;
    if (!ctx) {
      ctx = cairo_create(DrawTargetCairo::GetDummySurface());
      cairo_matrix_t mat;
      GfxMatrixToCairoMatrix(aTarget->GetTransform(), mat);
      cairo_set_matrix(ctx, &mat);
    }

    cairo_set_scaled_font(ctx, mScaledFont);

    // Convert our GlyphBuffer into an array of Cairo glyphs.
    std::vector<cairo_glyph_t> glyphs(aBuffer.mNumGlyphs);
    for (uint32_t i = 0; i < aBuffer.mNumGlyphs; ++i) {
      glyphs[i].index = aBuffer.mGlyphs[i].mIndex;
      glyphs[i].x = aBuffer.mGlyphs[i].mPosition.x;
      glyphs[i].y = aBuffer.mGlyphs[i].mPosition.y;
    }

    cairo_glyph_path(ctx, &glyphs[0], aBuffer.mNumGlyphs);

    RefPtr<PathCairo> newPath = new PathCairo(ctx);
    if (isNewContext) {
      cairo_destroy(ctx);
    }

    return newPath;
  }
#endif
  return nullptr;
}

开发者ID:MrKeiKun，项目名称:mozilla-central，代码行数:63，代码来源:ScaledFontBase.cpp

注：本文中的SkPaint::getPosTextPath方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。