src/ui/gfx/selection_model.cc

   1 // Copyright (c) 2012 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 "ui/gfx/selection_model.h"
   6
   7 #include "base/format_macros.h"
   8 #include "base/strings/stringprintf.h"
   9
  10 namespace gfx {
  11
  12 SelectionModel::SelectionModel()
  13     : selection_(0),
  14       caret_affinity_(CURSOR_BACKWARD) {}
  15
  16 SelectionModel::SelectionModel(size_t position, LogicalCursorDirection affinity)
  17     : selection_(position),
  18       caret_affinity_(affinity) {}
  19
  20 SelectionModel::SelectionModel(const Range& selection,
  21                                LogicalCursorDirection affinity)
  22     : selection_(selection),
  23       caret_affinity_(affinity) {}
  24
  25 bool SelectionModel::operator==(const SelectionModel& sel) const {
  26   return selection_ == sel.selection() &&
  27          caret_affinity_ == sel.caret_affinity();
  28 }
  29
  30 std::string SelectionModel::ToString() const {
  31   std::string str = "{";
  32   if (selection().is_empty())
  33     base::StringAppendF(&str, "%" PRIuS, caret_pos());
  34   else
  35     str += selection().ToString();
  36   const bool backward = caret_affinity() == CURSOR_BACKWARD;
  37   return str + (backward ? ",BACKWARD}" : ",FORWARD}");
  38 }
  39
  40 }  // namespace gfx