DEF_SIMPLE_GM_BG(glyph_pos_align, canvas, kWidth, kHeight, SK_ColorBLACK) {
SkPaint paint;
paint.setTextSize(kTextHeight);
paint.setFakeBoldText(true);
const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
const SkPoint pts[] = {{0, 0}, {kWidth, kHeight}};
paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors),
SkShader::kMirror_TileMode));
paint.setTextAlign(SkPaint::kRight_Align);
drawTestCase(canvas, "Right Align", kTextHeight, paint);
paint.setTextAlign(SkPaint::kCenter_Align);
drawTestCase(canvas, "Center Align", 4 * kTextHeight, paint);
paint.setTextAlign(SkPaint::kLeft_Align);
drawTestCase(canvas, "Left Align", 7 * kTextHeight, paint);
}
void onDraw(SkCanvas* canvas) override {
// There's a black pixel at 40, 40 for reference.
canvas->drawPoint(40.0f, 40.0f, SK_ColorBLACK);
// Two reference images.
canvas->translate(50.0f, 50.0f);
drawTestCase(canvas, 1.0f);
canvas->translate(0.0f, 50.0f);
drawTestCase(canvas, 3.0f);
// Uniform scaling test.
canvas->translate(0.0f, 100.0f);
canvas->save();
canvas->scale(3.0f, 3.0f);
drawTestCase(canvas, 1.0f);
canvas->restore();
// Non-uniform scaling test.
canvas->translate(0.0f, 100.0f);
canvas->save();
canvas->scale(3.0f, 6.0f);
drawTestCase(canvas, 1.0f);
canvas->restore();
// Skew test.
canvas->translate(0.0f, 80.0f);
canvas->save();
canvas->scale(3.0f, 3.0f);
SkMatrix skew;
skew.setIdentity();
skew.setSkewX(8.0f / 25.0f);
skew.setSkewY(2.0f / 25.0f);
canvas->concat(skew);
drawTestCase(canvas, 1.0f);
canvas->restore();
// Perspective test.
canvas->translate(0.0f, 80.0f);
canvas->save();
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspX(-SkScalarInvert(340));
perspective.setSkewX(8.0f / 25.0f);
perspective.setSkewY(2.0f / 25.0f);
canvas->concat(perspective);
drawTestCase(canvas, 1.0f);
canvas->restore();
}
