| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/utils/SkTextUtils.h" |
| |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkFontTypes.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkTextBlob.h" |
| #include "include/private/SkTemplates.h" |
| #include "src/core/SkFontPriv.h" |
| |
| class SkPaint; |
| |
| void SkTextUtils::Draw(SkCanvas* canvas, const void* text, size_t size, SkTextEncoding encoding, |
| SkScalar x, SkScalar y, const SkFont& font, const SkPaint& paint, |
| Align align) { |
| if (align != kLeft_Align) { |
| SkScalar width = font.measureText(text, size, encoding); |
| if (align == kCenter_Align) { |
| width *= 0.5f; |
| } |
| x -= width; |
| } |
| |
| canvas->drawTextBlob(SkTextBlob::MakeFromText(text, size, font, encoding), x, y, paint); |
| } |
| |
| void SkTextUtils::GetPath(const void* text, size_t length, SkTextEncoding encoding, |
| SkScalar x, SkScalar y, const SkFont& font, SkPath* path) { |
| SkAutoToGlyphs ag(font, text, length, encoding); |
| SkAutoTArray<SkPoint> pos(ag.count()); |
| font.getPos(ag.glyphs(), ag.count(), pos.get(), {x, y}); |
| |
| struct Rec { |
| SkPath* fDst; |
| const SkPoint* fPos; |
| } rec = { path, pos.get() }; |
| |
| path->reset(); |
| font.getPaths(ag.glyphs(), ag.count(), [](const SkPath* src, const SkMatrix& mx, void* ctx) { |
| Rec* rec = (Rec*)ctx; |
| if (src) { |
| SkMatrix m(mx); |
| m.postTranslate(rec->fPos->fX, rec->fPos->fY); |
| rec->fDst->addPath(*src, m); |
| } |
| rec->fPos += 1; |
| }, &rec); |
| } |
| |