| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkAtlasTextTarget_DEFINED |
| #define SkAtlasTextTarget_DEFINED |
| |
| #include <memory> |
| #include "SkRefCnt.h" |
| #include "SkScalar.h" |
| |
| class SkAtlasTextContext; |
| class SkAtlasTextFont; |
| |
| /** Represents a client-created renderable surface and is used to draw text into the surface. */ |
| class SK_API SkAtlasTextTarget { |
| public: |
| virtual ~SkAtlasTextTarget(); |
| |
| /** |
| * Creates a text drawing target. ‘handle’ is used to identify this rendering surface when |
| * draws are flushed to the SkAtlasTextContext's SkAtlasTextRenderer. |
| */ |
| static std::unique_ptr<SkAtlasTextTarget> Make(sk_sp<SkAtlasTextContext>, int width, int height, |
| void* handle); |
| |
| /** |
| * Enqueues a text draw in the target. The meaning of 'color' here is interpreted by the |
| * client's SkAtlasTextRenderer when it actually renders the text. |
| */ |
| virtual void drawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, |
| uint32_t color, const SkAtlasTextFont& font) = 0; |
| |
| /** Issues all queued text draws to SkAtlasTextRenderer. */ |
| virtual void flush() = 0; |
| |
| int width() const { return fWidth; } |
| int height() const { return fHeight; } |
| |
| void* handle() const { return fHandle; } |
| |
| SkAtlasTextContext* context() const { return fContext.get(); } |
| |
| protected: |
| SkAtlasTextTarget(sk_sp<SkAtlasTextContext>, int width, int height, void* handle); |
| |
| void* const fHandle; |
| const sk_sp<SkAtlasTextContext> fContext; |
| const int fWidth; |
| const int fHeight; |
| |
| private: |
| SkAtlasTextTarget() = delete; |
| SkAtlasTextTarget(const SkAtlasTextContext&) = delete; |
| SkAtlasTextTarget& operator=(const SkAtlasTextContext&) = delete; |
| }; |
| |
| #endif |