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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.
*/
#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);
/**
* Map opaque colors from 8888 to 565.
*/
SkColor color_to_565(SkColor color);
/**
* Return a color emoji typeface if available.
*/
void emoji_typeface(SkAutoTUnref<SkTypeface>* );
/**
* If the platform supports color emoji, return sample text the emoji can render.
*/
const char* emoji_sample_text();
/**
* If the platform supports color emoji, return the type (i.e. "CBDT", "SBIX", "").
*/
const char* platform_os_emoji();
/**
* Return the platform name with the version number ("Mac10.9", "Win8", etc.) if available.
*/
const char* platform_os_name();
/**
* Return the platform name without the version number ("Mac", "Win", etc.) if available.
*/
SkString major_platform_os_name();
/**
* Return the platform extra config (e.g. "GDI") if available.
*/
const char* platform_extra_config(const char* config);
/**
* Map serif, san-serif, and monospace to the platform-specific font name.
*/
const char* platform_font_name(const char* name);
/**
* 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);
/**
* Returns a platform-independent text renderer.
*/
SkTypeface* create_portable_typeface(const char* name, SkTypeface::Style style);
/** Call to clean up portable font references. */
void release_portable_typefaces();
/**
* 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 );
/** 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
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