| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/core/SkString.h" |
| #include "src/base/SkUTF.h" |
| #include "src/core/SkStringUtils.h" |
| |
| void SkAppendScalar(SkString* str, SkScalar value, SkScalarAsStringType asType) { |
| switch (asType) { |
| case kHex_SkScalarAsStringType: |
| str->appendf("SkBits2Float(0x%08x)", SkFloat2Bits(value)); |
| break; |
| case kDec_SkScalarAsStringType: { |
| SkString tmp; |
| tmp.printf("%.9g", value); |
| if (tmp.contains('.')) { |
| tmp.appendUnichar('f'); |
| } |
| str->append(tmp); |
| break; |
| } |
| } |
| } |
| |
| SkString SkTabString(const SkString& string, int tabCnt) { |
| if (tabCnt <= 0) { |
| return string; |
| } |
| SkString tabs; |
| for (int i = 0; i < tabCnt; ++i) { |
| tabs.append("\t"); |
| } |
| SkString result; |
| static const char newline[] = "\n"; |
| const char* input = string.c_str(); |
| int nextNL = SkStrFind(input, newline); |
| while (nextNL >= 0) { |
| if (nextNL > 0) { |
| result.append(tabs); |
| } |
| result.append(input, nextNL + 1); |
| input += nextNL + 1; |
| nextNL = SkStrFind(input, newline); |
| } |
| if (*input != '\0') { |
| result.append(tabs); |
| result.append(input); |
| } |
| return result; |
| } |
| |
| SkString SkStringFromUTF16(const uint16_t* src, size_t count) { |
| SkString ret; |
| const uint16_t* stop = src + count; |
| if (count > 0) { |
| SkASSERT(src); |
| size_t n = 0; |
| const uint16_t* end = src + count; |
| for (const uint16_t* ptr = src; ptr < end;) { |
| const uint16_t* last = ptr; |
| SkUnichar u = SkUTF::NextUTF16(&ptr, stop); |
| size_t s = SkUTF::ToUTF8(u); |
| if (n > UINT32_MAX - s) { |
| end = last; // truncate input string |
| break; |
| } |
| n += s; |
| } |
| ret = SkString(n); |
| char* out = ret.data(); |
| for (const uint16_t* ptr = src; ptr < end;) { |
| out += SkUTF::ToUTF8(SkUTF::NextUTF16(&ptr, stop), out); |
| } |
| SkASSERT(out == ret.data() + n); |
| } |
| return ret; |
| } |