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C++ SkTDArray::top方法代码示例

本文整理汇总了C++中SkTDArray::top方法的典型用法代码示例。如果您正苦于以下问题:C++ SkTDArray::top方法的具体用法?C++ SkTDArray::top怎么用?C++ SkTDArray::top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SkTDArray的用法示例。


在下文中一共展示了SkTDArray::top方法的1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: onDraw

    void onDraw(SkCanvas* canvas) override {
        static const char kText[] = "SKIA";
        static const int kTextLen = SK_ARRAY_COUNT(kText) - 1;
        static const int kPointSize = 55;

        SkTDArray<LabeledMatrix> matrices;
        matrices.append()->fMatrix.reset();
        matrices.top().fLabel = "Identity";
        matrices.append()->fMatrix.setScale(1.2f, 0.8f);
        matrices.top().fLabel = "Scale";
        matrices.append()->fMatrix.setRotate(10.f);
        matrices.top().fLabel = "Rotate";
        matrices.append()->fMatrix.reset();
        matrices.top().fMatrix.setPerspX(-0.0015f);
        matrices.top().fMatrix.setPerspY(+0.0015f);
        matrices.top().fLabel = "Persp";

        SkTDArray<LabeledMatrix> localMatrices;
        localMatrices.append()->fMatrix.reset();
        localMatrices.top().fLabel = "Identity";
        localMatrices.append()->fMatrix.setScale(2.5f, 0.2f);
        localMatrices.top().fLabel = "Scale";
        localMatrices.append()->fMatrix.setRotate(45.f);
        localMatrices.top().fLabel = "Rotate";
        localMatrices.append()->fMatrix.reset();
        localMatrices.top().fMatrix.setPerspX(-0.007f);
        localMatrices.top().fMatrix.setPerspY(+0.008f);
        localMatrices.top().fLabel = "Persp";

        static SkBitmap bmp;
        if (bmp.isNull()) {
            makebm(&bmp, kPointSize / 2, kPointSize / 2);
        }

        SkPaint fillPaint;
        fillPaint.setAntiAlias(true);
        sk_tool_utils::set_portable_typeface_always(&fillPaint);
        fillPaint.setTextSize(SkIntToScalar(kPointSize));
        fillPaint.setFilterQuality(kLow_SkFilterQuality);

        SkPaint outlinePaint;
        outlinePaint.setAntiAlias(true);
        sk_tool_utils::set_portable_typeface_always(&outlinePaint);
        outlinePaint.setTextSize(SkIntToScalar(kPointSize));
        outlinePaint.setStyle(SkPaint::kStroke_Style);
        outlinePaint.setStrokeWidth(0.f);

        SkScalar w = fillPaint.measureText(kText, kTextLen);
        static SkScalar kPadY = 0.5f * kPointSize;
        static SkScalar kPadX = 1.5f * kPointSize;

        SkPaint strokePaint(fillPaint);
        strokePaint.setStyle(SkPaint::kStroke_Style);
        strokePaint.setStrokeWidth(kPointSize * 0.1f);

        SkPaint labelPaint;
        labelPaint.setColor(0xff000000);
        labelPaint.setAntiAlias(true);
        sk_tool_utils::set_portable_typeface_always(&labelPaint);
        labelPaint.setTextSize(12.f);

        canvas->translate(15.f, 15.f);
        canvas->drawBitmap(bmp, 0, 0);
        canvas->translate(0, bmp.height() + labelPaint.getTextSize() + 15.f);

        static const char kLabelLabel[] = "localM / canvasM";
        canvas->drawText(kLabelLabel, strlen(kLabelLabel), 0, 0, labelPaint);
        canvas->translate(0, 15.f);

        canvas->save();
        SkScalar maxLabelW = 0;
        canvas->translate(0, kPadY / 2 + kPointSize);
        for (int lm = 0; lm < localMatrices.count(); ++lm) {
            canvas->drawText(matrices[lm].fLabel, strlen(matrices[lm].fLabel),
                             0, labelPaint.getTextSize() - 1, labelPaint);
            SkScalar labelW = labelPaint.measureText(matrices[lm].fLabel,
                              strlen(matrices[lm].fLabel));
            maxLabelW = SkMaxScalar(maxLabelW, labelW);
            canvas->translate(0.f, 2 * kPointSize + 2.5f * kPadY);
        }
        canvas->restore();

        canvas->translate(maxLabelW + kPadX / 2.f, 0.f);

        for (int s = 0; s < 2; ++s) {
            SkPaint& paint = s ? strokePaint : fillPaint;

            SkScalar columnH = 0;
            for (int m = 0; m < matrices.count(); ++m) {
                columnH = 0;
                canvas->save();
                canvas->drawText(matrices[m].fLabel, strlen(matrices[m].fLabel),
                                 0, labelPaint.getTextSize() - 1, labelPaint);
                canvas->translate(0, kPadY / 2 + kPointSize);
                columnH += kPadY / 2 + kPointSize;
                for (int lm = 0; lm < localMatrices.count(); ++lm) {
                    paint.setShader(
                        SkShader::CreateBitmapShader(bmp,
                                                     SkShader::kMirror_TileMode,
                                                     SkShader::kRepeat_TileMode,
//.........这里部分代码省略.........
开发者ID:mariospr,项目名称:chromium-browser,代码行数:101,代码来源:shadertext2.cpp


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