It is time.

ui/base/models/table_model.h

-// 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.
-
-#ifndef UI_BASE_MODELS_TABLE_MODEL_H_
-#define UI_BASE_MODELS_TABLE_MODEL_H_
-
-#include <vector>
-
-#include "base/strings/string16.h"
-#include "third_party/icu/source/i18n/unicode/coll.h"
-#include "ui/base/ui_base_export.h"
-
-namespace gfx {
-class ImageSkia;
-}
-
-namespace ui {
-
-class TableModelObserver;
-
-// The model driving the TableView.
-class UI_BASE_EXPORT TableModel {
- public:
-  // See HasGroups, get GetGroupID for details as to how this is used.
-  struct Group {
-    // The title text for the group.
-    base::string16 title;
-
-    // Unique id for the group.
-    int id;
-  };
-  typedef std::vector<Group> Groups;
-
-  // Number of rows in the model.
-  virtual int RowCount() = 0;
-
-  // Returns the value at a particular location in text.
-  virtual base::string16 GetText(int row, int column_id) = 0;
-
-  // Returns the small icon (16x16) that should be displayed in the first
-  // column before the text. This is only used when the TableView was created
-  // with the ICON_AND_TEXT table type. Returns an isNull() image if there is
-  // no image.
-  virtual gfx::ImageSkia GetIcon(int row);
-
-  // Returns the tooltip, if any, to show for a particular row.  If there are
-  // multiple columns in the row, this will only be shown when hovering over
-  // column zero.
-  virtual base::string16 GetTooltip(int row);
-
-  // If true, this row should be indented.
-  virtual bool ShouldIndent(int row);
-
-  // Returns true if the TableView has groups. Groups provide a way to visually
-  // delineate the rows in a table view. When groups are enabled table view
-  // shows a visual separator for each group, followed by all the rows in
-  // the group.
-  //
-  // On win2k a visual separator is not rendered for the group headers.
-  virtual bool HasGroups();
-
-  // Returns the groups.
-  // This is only used if HasGroups returns true.
-  virtual Groups GetGroups();
-
-  // Returns the group id of the specified row.
-  // This is only used if HasGroups returns true.
-  virtual int GetGroupID(int row);
-
-  // Sets the observer for the model. The TableView should NOT take ownership
-  // of the observer.
-  virtual void SetObserver(TableModelObserver* observer) = 0;
-
-  // Compares the values in the column with id |column_id| for the two rows.
-  // Returns a value < 0, == 0 or > 0 as to whether the first value is
-  // <, == or > the second value.
-  //
-  // This implementation does a case insensitive locale specific string
-  // comparison.
-  virtual int CompareValues(int row1, int row2, int column_id);
-
-  // Reset the collator.
-  void ClearCollator();
-
- protected:
-  virtual ~TableModel() {}
-
-  // Returns the collator used by CompareValues.
-  icu::Collator* GetCollator();
-};
-
-// TableColumn specifies the title, alignment and size of a particular column.
-struct UI_BASE_EXPORT TableColumn {
-  enum Alignment {
-    LEFT, RIGHT, CENTER
-  };
-
-  TableColumn();
-  TableColumn(int id, Alignment alignment, int width, float percent);
-
-  // A unique identifier for the column.
-  int id;
-
-  // The title for the column.
-  base::string16 title;
-
-  // Alignment for the content.
-  Alignment alignment;
-
-  // The size of a column may be specified in two ways:
-  // 1. A fixed width. Set the width field to a positive number and the
-  //    column will be given that width, in pixels.
-  // 2. As a percentage of the available width. If width is -1, and percent is
-  //    > 0, the column is given a width of
-  //    available_width * percent / total_percent.
-  // 3. If the width == -1 and percent == 0, the column is autosized based on
-  //    the width of the column header text.
-  //
-  // Sizing is done in four passes. Fixed width columns are given
-  // their width, percentages are applied, autosized columns are autosized,
-  // and finally percentages are applied again taking into account the widths
-  // of autosized columns.
-  int width;
-  float percent;
-
-  // The minimum width required for all items in this column
-  // (including the header)
-  // to be visible.
-  int min_visible_width;
-
-  // Is this column sortable? Default is false
-  bool sortable;
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_MODELS_TABLE_MODEL_H_