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