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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkPDFUtils_DEFINED
#define SkPDFUtils_DEFINED
#include "SkPaint.h"
#include "SkPath.h"
class SkMatrix;
class SkPath;
class SkPDFArray;
struct SkRect;
class SkWStream;
#if 0
#define PRINT_NOT_IMPL(str) fprintf(stderr, str)
#else
#define PRINT_NOT_IMPL(str)
#endif
#define NOT_IMPLEMENTED(condition, assert) \
do { \
if ((bool)(condition)) { \
PRINT_NOT_IMPL("NOT_IMPLEMENTED: " #condition "\n"); \
SkDEBUGCODE(SkASSERT(!assert);) \
} \
} while (0)
class SkPDFUtils {
public:
static sk_sp<SkPDFArray> RectToArray(const SkRect& rect);
static sk_sp<SkPDFArray> MatrixToArray(const SkMatrix& matrix);
static void AppendTransform(const SkMatrix& matrix, SkWStream* content);
static void MoveTo(SkScalar x, SkScalar y, SkWStream* content);
static void AppendLine(SkScalar x, SkScalar y, SkWStream* content);
static void AppendCubic(SkScalar ctl1X, SkScalar ctl1Y,
SkScalar ctl2X, SkScalar ctl2Y,
SkScalar dstX, SkScalar dstY, SkWStream* content);
static void AppendRectangle(const SkRect& rect, SkWStream* content);
static void EmitPath(const SkPath& path, SkPaint::Style paintStyle,
bool doConsumeDegerates, SkWStream* content);
static void EmitPath(const SkPath& path, SkPaint::Style paintStyle,
SkWStream* content) {
SkPDFUtils::EmitPath(path, paintStyle, true, content);
}
static void ClosePath(SkWStream* content);
static void PaintPath(SkPaint::Style style, SkPath::FillType fill,
SkWStream* content);
static void StrokePath(SkWStream* content);
static void DrawFormXObject(int objectIndex, SkWStream* content);
static void ApplyGraphicState(int objectIndex, SkWStream* content);
static void ApplyPattern(int objectIndex, SkWStream* content);
// 3 = '-', '.', and '\0' characters.
// 9 = number of significant digits
// abs(FLT_MIN_10_EXP) = number of zeros in FLT_MIN
static const size_t kMaximumFloatDecimalLength = 3 + 9 - FLT_MIN_10_EXP;
// FloatToDecimal is exposed for unit tests.
static size_t FloatToDecimal(float value,
char output[kMaximumFloatDecimalLength]);
static void AppendScalar(SkScalar value, SkWStream* stream);
static SkString FormatString(const char* input, size_t len);
};
#endif
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