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