1cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)// Copyright (c) 2010 The Chromium Authors. All rights reserved. 2cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 3cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)// found in the LICENSE file. 4cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 5cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "pdf/pdfium/pdfium_range.h" 6cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 7cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "base/logging.h" 8cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "base/strings/string_util.h" 9cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 10cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)namespace chrome_pdf { 11cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 12cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)PDFiumRange::PDFiumRange(PDFiumPage* page, int char_index, int char_count) 13cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) : page_(page), 14cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) char_index_(char_index), 15cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) char_count_(char_count), 16cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cached_screen_rects_zoom_(0) { 17cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 18cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 19cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)PDFiumRange::~PDFiumRange() { 20cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 21cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 22cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void PDFiumRange::SetCharCount(int char_count) { 23cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) char_count_ = char_count; 24cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 25cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cached_screen_rects_offset_ = pp::Point(); 26cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cached_screen_rects_zoom_ = 0; 27cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 28cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 29cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)std::vector<pp::Rect> PDFiumRange::GetScreenRects(const pp::Point& offset, 30cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) double zoom, 31cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) int rotation) { 32cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (offset == cached_screen_rects_offset_ && 33cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) zoom == cached_screen_rects_zoom_) { 34cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return cached_screen_rects_; 35cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 36cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 37cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cached_screen_rects_.clear(); 38cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cached_screen_rects_offset_ = offset; 39cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cached_screen_rects_zoom_ = zoom; 40cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 41cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) int char_index = char_index_; 42cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) int char_count = char_count_; 43cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (char_count < 0) { 44cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) char_count *= -1; 45cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) char_index -= char_count - 1; 46cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 47cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 48cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) int count = FPDFText_CountRects(page_->GetTextPage(), char_index, char_count); 49cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) for (int i = 0; i < count; ++i) { 50cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) double left, top, right, bottom; 51cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) FPDFText_GetRect(page_->GetTextPage(), i, &left, &top, &right, &bottom); 52cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cached_screen_rects_.push_back( 53cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) page_->PageToScreen(offset, zoom, left, top, right, bottom, rotation)); 54cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 55cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 56cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return cached_screen_rects_; 57cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 58cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 59cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)base::string16 PDFiumRange::GetText() { 60cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) int index = char_index_; 61cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) int count = char_count_; 62cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!count) 63cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return base::string16(); 64cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (count < 0) { 65cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) count *= -1; 66cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) index -= count - 1; 67cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 68cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 69cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) base::string16 rv; 70cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) unsigned short* data = 71cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) reinterpret_cast<unsigned short*>(WriteInto(&rv, count + 1)); 72cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (data) { 73cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) int written = FPDFText_GetText(page_->GetTextPage(), index, count, data); 74cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) rv.reserve(written); 75cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 76cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return rv; 77cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 78cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 79cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} // namespace chrome_pdf 80