| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef sk_tool_utils_DEFINED |
| #define sk_tool_utils_DEFINED |
| |
| #include "SkColor.h" |
| #include "SkImageEncoder.h" |
| #include "SkImageInfo.h" |
| #include "SkPixelSerializer.h" |
| #include "SkTypeface.h" |
| |
| class SkBitmap; |
| class SkCanvas; |
| class SkPaint; |
| class SkShader; |
| class SkTestFont; |
| class SkTextBlobBuilder; |
| |
| namespace sk_tool_utils { |
| |
| const char* colortype_name(SkColorType); |
| |
| /** |
| * Sets the paint to use a platform-independent text renderer. |
| */ |
| void set_portable_typeface(SkPaint* paint, const char* name = NULL, |
| SkTypeface::Style style = SkTypeface::kNormal); |
| SkTypeface* create_portable_typeface(const char* name, SkTypeface::Style style); |
| void report_used_chars(); |
| |
| /** |
| * Call canvas->writePixels() by using the pixels from bitmap, but with an info that claims |
| * the pixels are colorType + alphaType |
| */ |
| void write_pixels(SkCanvas*, const SkBitmap&, int x, int y, SkColorType, SkAlphaType); |
| |
| // private to sk_tool_utils |
| SkTypeface* create_font(const char* name, SkTypeface::Style ); |
| SkTypeface* resource_font(const char* name, SkTypeface::Style ); |
| |
| /** Returns a newly created CheckerboardShader. */ |
| SkShader* create_checkerboard_shader(SkColor c1, SkColor c2, int size); |
| |
| /** Draw a checkerboard pattern in the current canvas, restricted to |
| the current clip, using SkXfermode::kSrc_Mode. */ |
| void draw_checkerboard(SkCanvas* canvas, |
| SkColor color1, |
| SkColor color2, |
| int size); |
| |
| /** A default checkerboard. */ |
| inline void draw_checkerboard(SkCanvas* canvas) { |
| sk_tool_utils::draw_checkerboard(canvas, 0xFF999999, 0xFF666666, 8); |
| } |
| |
| // Encodes to PNG, unless there is already encoded data, in which case that gets |
| // used. |
| class PngPixelSerializer : public SkPixelSerializer { |
| public: |
| bool onUseEncodedData(const void*, size_t) override { return true; } |
| SkData* onEncodePixels(const SkImageInfo& info, const void* pixels, |
| size_t rowBytes) override { |
| return SkImageEncoder::EncodeData(info, pixels, rowBytes, |
| SkImageEncoder::kPNG_Type, 100); |
| } |
| }; |
| |
| // A helper for inserting a drawtext call into a SkTextBlobBuilder |
| void add_to_text_blob(SkTextBlobBuilder* builder, const char* text, const SkPaint& origPaint, |
| SkScalar x, SkScalar y); |
| |
| } // namespace sk_tool_utils |
| |
| #endif // sk_tool_utils_DEFINED |