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- // Copyright (c) 2012 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 "ui/gfx/selection_model.h"
- #include <ostream>
- #include "base/check.h"
- #include "base/format_macros.h"
- #include "base/strings/stringprintf.h"
- namespace gfx {
- SelectionModel::SelectionModel()
- : selection_(0),
- caret_affinity_(CURSOR_BACKWARD) {}
- SelectionModel::SelectionModel(size_t position, LogicalCursorDirection affinity)
- : selection_(position),
- caret_affinity_(affinity) {}
- SelectionModel::SelectionModel(const Range& selection,
- LogicalCursorDirection affinity)
- : selection_(selection),
- caret_affinity_(affinity) {}
- SelectionModel::SelectionModel(const std::vector<Range>& selections,
- LogicalCursorDirection affinity)
- : selection_(selections[0]), caret_affinity_(affinity) {
- for (size_t i = 1; i < selections.size(); ++i)
- AddSecondarySelection(selections[i]);
- }
- SelectionModel::SelectionModel(const SelectionModel& selection_model) = default;
- SelectionModel::~SelectionModel() = default;
- void SelectionModel::AddSecondarySelection(const Range& selection) {
- for (auto s : GetAllSelections())
- DCHECK(!selection.Intersects(s));
- secondary_selections_.push_back(selection);
- }
- std::vector<Range> SelectionModel::GetAllSelections() const {
- std::vector<Range> selections = {selection()};
- selections.insert(selections.end(), secondary_selections_.begin(),
- secondary_selections_.end());
- return selections;
- }
- bool SelectionModel::operator==(const SelectionModel& sel) const {
- return selection() == sel.selection() &&
- caret_affinity() == sel.caret_affinity() &&
- secondary_selections() == sel.secondary_selections();
- }
- std::string SelectionModel::ToString() const {
- std::string str = "{";
- if (selection().is_empty())
- base::StringAppendF(&str, "%" PRIuS, caret_pos());
- else
- str += selection().ToString();
- const bool backward = caret_affinity() == CURSOR_BACKWARD;
- str += (backward ? ",BACKWARD" : ",FORWARD");
- for (auto selection : secondary_selections()) {
- str += ",";
- if (selection.is_empty())
- base::StringAppendF(&str, "%" PRIuS, selection.end());
- else
- str += selection.ToString();
- }
- return str + "}";
- }
- std::ostream& operator<<(std::ostream& out, const SelectionModel& model) {
- out << model.ToString();
- return out;
- }
- } // namespace gfx
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