| /* |
| * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "third_party/blink/renderer/core/svg/svg_path_string_builder.h" |
| |
| #include "third_party/blink/renderer/core/svg/svg_path_data.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| namespace blink { |
| |
| String SVGPathStringBuilder::Result() { |
| unsigned size = string_builder_.length(); |
| if (!size) |
| return String(); |
| |
| // Remove trailing space. |
| string_builder_.Resize(size - 1); |
| return string_builder_.ToString(); |
| } |
| |
| static void AppendFloat(StringBuilder& string_builder, float value) { |
| string_builder.Append(' '); |
| string_builder.AppendNumber(value); |
| } |
| |
| static void AppendBool(StringBuilder& string_builder, bool value) { |
| string_builder.Append(' '); |
| string_builder.AppendNumber(value); |
| } |
| |
| static void AppendPoint(StringBuilder& string_builder, |
| const FloatPoint& point) { |
| AppendFloat(string_builder, point.X()); |
| AppendFloat(string_builder, point.Y()); |
| } |
| |
| // TODO(fs): Centralized location for this (SVGPathSeg.h?) |
| static const char kPathSegmentCharacter[] = { |
| 0, // PathSegUnknown |
| 'Z', // PathSegClosePath |
| 'M', // PathSegMoveToAbs |
| 'm', // PathSegMoveToRel |
| 'L', // PathSegLineToAbs |
| 'l', // PathSegLineToRel |
| 'C', // PathSegCurveToCubicAbs |
| 'c', // PathSegCurveToCubicRel |
| 'Q', // PathSegCurveToQuadraticAbs |
| 'q', // PathSegCurveToQuadraticRel |
| 'A', // PathSegArcAbs |
| 'a', // PathSegArcRel |
| 'H', // PathSegLineToHorizontalAbs |
| 'h', // PathSegLineToHorizontalRel |
| 'V', // PathSegLineToVerticalAbs |
| 'v', // PathSegLineToVerticalRel |
| 'S', // PathSegCurveToCubicSmoothAbs |
| 's', // PathSegCurveToCubicSmoothRel |
| 'T', // PathSegCurveToQuadraticSmoothAbs |
| 't', // PathSegCurveToQuadraticSmoothRel |
| }; |
| |
| void SVGPathStringBuilder::EmitSegment(const PathSegmentData& segment) { |
| DCHECK_GT(segment.command, kPathSegUnknown); |
| DCHECK_LE(segment.command, kPathSegCurveToQuadraticSmoothRel); |
| string_builder_.Append(kPathSegmentCharacter[segment.command]); |
| |
| switch (segment.command) { |
| case kPathSegMoveToRel: |
| case kPathSegMoveToAbs: |
| case kPathSegLineToRel: |
| case kPathSegLineToAbs: |
| case kPathSegCurveToQuadraticSmoothRel: |
| case kPathSegCurveToQuadraticSmoothAbs: |
| AppendPoint(string_builder_, segment.target_point); |
| break; |
| case kPathSegLineToHorizontalRel: |
| case kPathSegLineToHorizontalAbs: |
| AppendFloat(string_builder_, segment.target_point.X()); |
| break; |
| case kPathSegLineToVerticalRel: |
| case kPathSegLineToVerticalAbs: |
| AppendFloat(string_builder_, segment.target_point.Y()); |
| break; |
| case kPathSegClosePath: |
| break; |
| case kPathSegCurveToCubicRel: |
| case kPathSegCurveToCubicAbs: |
| AppendPoint(string_builder_, segment.point1); |
| AppendPoint(string_builder_, segment.point2); |
| AppendPoint(string_builder_, segment.target_point); |
| break; |
| case kPathSegCurveToCubicSmoothRel: |
| case kPathSegCurveToCubicSmoothAbs: |
| AppendPoint(string_builder_, segment.point2); |
| AppendPoint(string_builder_, segment.target_point); |
| break; |
| case kPathSegCurveToQuadraticRel: |
| case kPathSegCurveToQuadraticAbs: |
| AppendPoint(string_builder_, segment.point1); |
| AppendPoint(string_builder_, segment.target_point); |
| break; |
| case kPathSegArcRel: |
| case kPathSegArcAbs: |
| AppendPoint(string_builder_, segment.point1); |
| AppendFloat(string_builder_, segment.point2.X()); |
| AppendBool(string_builder_, segment.arc_large); |
| AppendBool(string_builder_, segment.arc_sweep); |
| AppendPoint(string_builder_, segment.target_point); |
| break; |
| default: |
| NOTREACHED(); |
| } |
| string_builder_.Append(' '); |
| } |
| |
| } // namespace blink |