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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "pdf/pdfium/pdfium_range.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
namespace chrome_pdf {
PDFiumRange::PDFiumRange(PDFiumPage* page, int char_index, int char_count)
: page_(page),
char_index_(char_index),
char_count_(char_count),
cached_screen_rects_zoom_(0) {
}
PDFiumRange::~PDFiumRange() {
}
void PDFiumRange::SetCharCount(int char_count) {
char_count_ = char_count;
cached_screen_rects_offset_ = pp::Point();
cached_screen_rects_zoom_ = 0;
}
std::vector<pp::Rect> PDFiumRange::GetScreenRects(const pp::Point& offset,
double zoom,
int rotation) {
if (offset == cached_screen_rects_offset_ &&
zoom == cached_screen_rects_zoom_) {
return cached_screen_rects_;
}
cached_screen_rects_.clear();
cached_screen_rects_offset_ = offset;
cached_screen_rects_zoom_ = zoom;
int char_index = char_index_;
int char_count = char_count_;
if (char_count < 0) {
char_count *= -1;
char_index -= char_count - 1;
}
int count = FPDFText_CountRects(page_->GetTextPage(), char_index, char_count);
for (int i = 0; i < count; ++i) {
double left, top, right, bottom;
FPDFText_GetRect(page_->GetTextPage(), i, &left, &top, &right, &bottom);
cached_screen_rects_.push_back(
page_->PageToScreen(offset, zoom, left, top, right, bottom, rotation));
}
return cached_screen_rects_;
}
base::string16 PDFiumRange::GetText() {
int index = char_index_;
int count = char_count_;
if (!count)
return base::string16();
if (count < 0) {
count *= -1;
index -= count - 1;
}
base::string16 rv;
unsigned short* data =
reinterpret_cast<unsigned short*>(WriteInto(&rv, count + 1));
if (data) {
int written = FPDFText_GetText(page_->GetTextPage(), index, count, data);
rv.reserve(written);
}
return rv;
}
} // namespace chrome_pdf
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