15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is free software; you can redistribute it and/or 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modify it under the terms of the GNU Library General Public 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * License as published by the Free Software Foundation; either 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * version 2 of the License, or (at your option) any later version. 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is distributed in the hope that it will be useful, 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Library General Public License for more details. 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * You should have received a copy of the GNU Library General Public License 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Boston, MA 02110-1301, USA. 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef SVGTextMetrics_h 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#define SVGTextMetrics_h 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2302772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch#include "wtf/text/WTFString.h" 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class RenderSVGInlineText; 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class SVGTextLayoutAttributes; 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class TextRun; 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class SVGTextMetrics { 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) enum MetricsType { 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) SkippedSpaceMetrics 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) }; 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) SVGTextMetrics(); 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) SVGTextMetrics(MetricsType); 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) SVGTextMetrics(RenderSVGInlineText*, unsigned position, unsigned length, float width, const String& glyphName); 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static SVGTextMetrics measureCharacterRange(RenderSVGInlineText*, unsigned position, unsigned length); 42e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch static TextRun constructTextRun(RenderSVGInlineText*, unsigned position, unsigned length); 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isEmpty() const { return !m_width && !m_height && !m_glyph.isValid && m_length == 1; } 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float width() const { return m_width; } 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) void setWidth(float width) { m_width = width; } 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float height() const { return m_height; } 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) unsigned length() const { return m_length; } 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) struct Glyph { 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) Glyph() 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : isValid(false) 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) { 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isValid; 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) String name; 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) String unicodeString; 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) }; 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Only useful when measuring individual characters, to lookup ligatures. 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const Glyph& glyph() const { return m_glyph; } 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)private: 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) SVGTextMetrics(RenderSVGInlineText*, const TextRun&); 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float m_width; 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float m_height; 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) unsigned m_length; 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) Glyph m_glyph; 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif 78