7ae034d651
This is meant to allow clients to migrate over to a SkFont api on canvas (e.g. drawText(text, font, paint)) while still permitting the current setters in paint (e.g. setTextSize, setFlags). R=bungeman@google.com, eae@chromium.org, fmalita@google.com, fmalita@chromium.org Author: reed@google.com Review URL: https://codereview.chromium.org/245953003 git-svn-id: http://skia.googlecode.com/svn/trunk@14997 2bbb7eff-a529-9590-31e7-b0007b416f81
118 lines
4.4 KiB
C++
118 lines
4.4 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkFont.h"
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#include "SkPaint.h"
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#include "SkTypeface.h"
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#include "Test.h"
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static bool is_use_nonlinear_metrics(const SkPaint& paint) {
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return !paint.isSubpixelText() && !paint.isLinearText();
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}
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static bool is_enable_auto_hints(const SkPaint& paint) {
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return paint.isAutohinted();
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}
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static bool is_enable_bytecode_hints(const SkPaint& paint) {
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return paint.getHinting() >= SkPaint::kFull_Hinting;
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}
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static void test_cachedfont(skiatest::Reporter* reporter, const SkPaint& paint) {
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SkAutoTUnref<SkFont> font(SkFont::Testing_CreateFromPaint(paint));
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REPORTER_ASSERT(reporter, font->getTypeface() == paint.getTypeface());
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REPORTER_ASSERT(reporter, font->getSize() == paint.getTextSize());
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REPORTER_ASSERT(reporter, font->getScaleX() == paint.getTextScaleX());
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REPORTER_ASSERT(reporter, font->getSkewX() == paint.getTextSkewX());
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REPORTER_ASSERT(reporter, font->isVertical() == paint.isVerticalText());
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REPORTER_ASSERT(reporter, font->isEmbolden() == paint.isFakeBoldText());
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REPORTER_ASSERT(reporter, font->isUseNonLinearMetrics() == is_use_nonlinear_metrics(paint));
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REPORTER_ASSERT(reporter, font->isEnableAutoHints() == is_enable_auto_hints(paint));
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REPORTER_ASSERT(reporter, font->isEnableByteCodeHints() == is_enable_bytecode_hints(paint));
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}
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static void test_cachedfont(skiatest::Reporter* reporter) {
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static const char* const faces[] = {
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NULL, // default font
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"Arial", "Times", "Times New Roman", "Helvetica", "Courier",
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"Courier New", "Verdana", "monospace",
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};
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static const struct {
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SkPaint::Hinting hinting;
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unsigned flags;
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} settings[] = {
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{ SkPaint::kNo_Hinting, 0 },
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{ SkPaint::kNo_Hinting, SkPaint::kLinearText_Flag },
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{ SkPaint::kNo_Hinting, SkPaint::kSubpixelText_Flag },
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{ SkPaint::kSlight_Hinting, 0 },
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{ SkPaint::kSlight_Hinting, SkPaint::kLinearText_Flag },
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{ SkPaint::kSlight_Hinting, SkPaint::kSubpixelText_Flag },
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{ SkPaint::kNormal_Hinting, 0 },
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{ SkPaint::kNormal_Hinting, SkPaint::kLinearText_Flag },
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{ SkPaint::kNormal_Hinting, SkPaint::kSubpixelText_Flag },
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};
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static const struct {
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SkScalar fScaleX;
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SkScalar fSkewX;
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} gScaleRec[] = {
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{ SK_Scalar1, 0 },
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{ SK_Scalar1/2, 0 },
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// these two exercise obliquing (skew)
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{ SK_Scalar1, -SK_Scalar1/4 },
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{ SK_Scalar1/2, -SK_Scalar1/4 },
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};
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SkPaint paint;
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char txt[] = "long.text.with.lots.of.dots.";
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for (size_t i = 0; i < SK_ARRAY_COUNT(faces); i++) {
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SkAutoTUnref<SkTypeface> face(SkTypeface::CreateFromName(faces[i], SkTypeface::kNormal));
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paint.setTypeface(face);
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for (size_t j = 0; j < SK_ARRAY_COUNT(settings); j++) {
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paint.setHinting(settings[j].hinting);
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paint.setLinearText((settings[j].flags & SkPaint::kLinearText_Flag) != 0);
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paint.setSubpixelText((settings[j].flags & SkPaint::kSubpixelText_Flag) != 0);
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for (size_t k = 0; k < SK_ARRAY_COUNT(gScaleRec); ++k) {
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paint.setTextScaleX(gScaleRec[k].fScaleX);
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paint.setTextSkewX(gScaleRec[k].fSkewX);
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test_cachedfont(reporter, paint);
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SkRect bounds;
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// For no hinting and light hinting this should take the
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// optimized generateAdvance path.
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SkScalar width1 = paint.measureText(txt, strlen(txt));
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// Requesting the bounds forces a generateMetrics call.
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SkScalar width2 = paint.measureText(txt, strlen(txt), &bounds);
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REPORTER_ASSERT(reporter, width1 == width2);
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SkAutoTUnref<SkFont> font(SkFont::Testing_CreateFromPaint(paint));
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SkScalar font_width1 = font->measureText(txt, strlen(txt), kUTF8_SkTextEncoding);
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// measureText not yet implemented...
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REPORTER_ASSERT(reporter, font_width1 == -1);
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// REPORTER_ASSERT(reporter, width1 == font_width1);
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}
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}
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}
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}
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DEF_TEST(FontObj, reporter) {
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test_cachedfont(reporter);
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}
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// need tests for SkStrSearch
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