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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkFont.h"
#include "SkPaint.h"
#include "SkTypeface.h"
#include "Test.h"
static bool is_use_nonlinear_metrics(const SkPaint& paint) {
return !paint.isSubpixelText() && !paint.isLinearText();
}
static bool is_enable_auto_hints(const SkPaint& paint) {
return paint.isAutohinted();
}
static bool is_enable_bytecode_hints(const SkPaint& paint) {
return paint.getHinting() >= SkPaint::kFull_Hinting;
}
static void test_cachedfont(skiatest::Reporter* reporter, const SkPaint& paint) {
sk_sp<SkFont> font(SkFont::Testing_CreateFromPaint(paint));
// Currently SkFont resolves null into the default, so only test if paint's is not null
if (paint.getTypeface()) {
REPORTER_ASSERT(reporter, font->getTypeface() == paint.getTypeface());
}
REPORTER_ASSERT(reporter, font->getSize() == paint.getTextSize());
REPORTER_ASSERT(reporter, font->getScaleX() == paint.getTextScaleX());
REPORTER_ASSERT(reporter, font->getSkewX() == paint.getTextSkewX());
REPORTER_ASSERT(reporter, font->isVertical() == paint.isVerticalText());
REPORTER_ASSERT(reporter, font->isEmbolden() == paint.isFakeBoldText());
REPORTER_ASSERT(reporter, font->isUseNonLinearMetrics() == is_use_nonlinear_metrics(paint));
REPORTER_ASSERT(reporter, font->isEnableAutoHints() == is_enable_auto_hints(paint));
REPORTER_ASSERT(reporter, font->isEnableByteCodeHints() == is_enable_bytecode_hints(paint));
}
static void test_cachedfont(skiatest::Reporter* reporter) {
static const char* const faces[] = {
nullptr, // default font
"Arial", "Times", "Times New Roman", "Helvetica", "Courier",
"Courier New", "Verdana", "monospace",
};
static const struct {
SkPaint::Hinting hinting;
unsigned flags;
} settings[] = {
{ SkPaint::kNo_Hinting, 0 },
{ SkPaint::kNo_Hinting, SkPaint::kLinearText_Flag },
{ SkPaint::kNo_Hinting, SkPaint::kSubpixelText_Flag },
{ SkPaint::kSlight_Hinting, 0 },
{ SkPaint::kSlight_Hinting, SkPaint::kLinearText_Flag },
{ SkPaint::kSlight_Hinting, SkPaint::kSubpixelText_Flag },
{ SkPaint::kNormal_Hinting, 0 },
{ SkPaint::kNormal_Hinting, SkPaint::kLinearText_Flag },
{ SkPaint::kNormal_Hinting, SkPaint::kSubpixelText_Flag },
};
static const struct {
SkScalar fScaleX;
SkScalar fSkewX;
} gScaleRec[] = {
{ SK_Scalar1, 0 },
{ SK_Scalar1/2, 0 },
// these two exercise obliquing (skew)
{ SK_Scalar1, -SK_Scalar1/4 },
{ SK_Scalar1/2, -SK_Scalar1/4 },
};
SkPaint paint;
char txt[] = "long.text.with.lots.of.dots.";
for (size_t i = 0; i < SK_ARRAY_COUNT(faces); i++) {
paint.setTypeface(SkTypeface::MakeFromName(faces[i], SkFontStyle()));
for (size_t j = 0; j < SK_ARRAY_COUNT(settings); j++) {
paint.setHinting(settings[j].hinting);
paint.setLinearText((settings[j].flags & SkPaint::kLinearText_Flag) != 0);
paint.setSubpixelText((settings[j].flags & SkPaint::kSubpixelText_Flag) != 0);
for (size_t k = 0; k < SK_ARRAY_COUNT(gScaleRec); ++k) {
paint.setTextScaleX(gScaleRec[k].fScaleX);
paint.setTextSkewX(gScaleRec[k].fSkewX);
test_cachedfont(reporter, paint);
SkRect bounds;
// For no hinting and light hinting this should take the
// optimized generateAdvance path.
SkScalar width1 = paint.measureText(txt, strlen(txt));
// Requesting the bounds forces a generateMetrics call.
SkScalar width2 = paint.measureText(txt, strlen(txt), &bounds);
REPORTER_ASSERT(reporter, width1 == width2);
sk_sp<SkFont> font(SkFont::Testing_CreateFromPaint(paint));
SkScalar font_width1 = font->measureText(txt, strlen(txt), kUTF8_SkTextEncoding);
// measureText not yet implemented...
REPORTER_ASSERT(reporter, font_width1 == -1);
// REPORTER_ASSERT(reporter, width1 == font_width1);
}
}
}
}
DEF_TEST(FontObj, reporter) {
test_cachedfont(reporter);
}
// need tests for SkStrSearch
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