| /* |
| * Copyright (C) Research In Motion Limited 2010. 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/layout/svg/svg_text_layout_engine_spacing.h" |
| |
| #include "third_party/blink/renderer/platform/fonts/font.h" |
| #include "third_party/blink/renderer/platform/text/character.h" |
| |
| namespace blink { |
| |
| SVGTextLayoutEngineSpacing::SVGTextLayoutEngineSpacing(const Font& font, |
| float effective_zoom) |
| : font_(font), last_character_(0), effective_zoom_(effective_zoom) { |
| DCHECK(effective_zoom_); |
| } |
| |
| float SVGTextLayoutEngineSpacing::CalculateCSSSpacing(UChar current_character) { |
| UChar last_character = last_character_; |
| last_character_ = current_character; |
| |
| if (!font_.GetFontDescription().LetterSpacing() && |
| !font_.GetFontDescription().WordSpacing()) |
| return 0; |
| |
| float spacing = font_.GetFontDescription().LetterSpacing(); |
| if (font_.GetFontDescription().WordSpacing()) { |
| if (Character::TreatAsSpace(current_character) && |
| !Character::TreatAsSpace(last_character)) |
| spacing += font_.GetFontDescription().WordSpacing(); |
| } |
| |
| if (effective_zoom_ != 1) |
| spacing = spacing / effective_zoom_; |
| |
| return spacing; |
| } |
| |
| } // namespace blink |
