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ui/views/controls/table/table_view.h

Index: ui/views/controls/table/table_view.h
diff --git a/ui/views/controls/table/table_view.h b/ui/views/controls/table/table_view.h
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index c1a9162f9af2f6ae543c5b5d09175ddc34436882..0000000000000000000000000000000000000000
--- a/ui/views/controls/table/table_view.h
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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.
-
-#ifndef UI_VIEWS_CONTROLS_TABLE_TABLE_VIEW_VIEWS_H_
-#define UI_VIEWS_CONTROLS_TABLE_TABLE_VIEW_VIEWS_H_
-
-#include <vector>
-
-#include "base/memory/scoped_ptr.h"
-#include "ui/base/models/list_selection_model.h"
-#include "ui/base/models/table_model.h"
-#include "ui/base/models/table_model_observer.h"
-#include "ui/gfx/font_list.h"
-#include "ui/views/view.h"
-#include "ui/views/views_export.h"
-
-// A TableView is a view that displays multiple rows with any number of columns.
-// TableView is driven by a TableModel. The model returns the contents
-// to display. TableModel also has an Observer which is used to notify
-// TableView of changes to the model so that the display may be updated
-// appropriately.
-//
-// TableView itself has an observer that is notified when the selection
-// changes.
-//
-// When a table is sorted the model coordinates do not necessarily match the
-// view coordinates. All table methods are in terms of the model. If you need to
-// convert to view coordinates use ModelToView().
-//
-// Sorting is done by a locale sensitive string sort. You can customize the
-// sort by way of overriding TableModel::CompareValues().
-namespace views {
-
-struct GroupRange;
-class TableGrouper;
-class TableHeader;
-class TableViewObserver;
-class TableViewRowBackgroundPainter;
-class TableViewTestHelper;
-
-// The cells in the first column of a table can contain:
-// - only text
-// - a small icon (16x16) and some text
-// - a check box and some text
-enum TableTypes {
-  TEXT_ONLY = 0,
-  ICON_AND_TEXT,
-};
-
-class VIEWS_EXPORT TableView
-    : public views::View,
-      public ui::TableModelObserver {
- public:
-  // Used to track a visible column. Useful only for the header.
-  struct VIEWS_EXPORT VisibleColumn {
-    VisibleColumn();
-    ~VisibleColumn();
-
-    // The column.
-    ui::TableColumn column;
-
-    // Starting x-coordinate of the column.
-    int x;
-
-    // Width of the column.
-    int width;
-  };
-
-  // Describes a sorted column.
-  struct VIEWS_EXPORT SortDescriptor {
-    SortDescriptor() : column_id(-1), ascending(true) {}
-    SortDescriptor(int column_id, bool ascending)
-        : column_id(column_id),
-          ascending(ascending) {}
-
-    // ID of the sorted column.
-    int column_id;
-
-    // Is the sort ascending?
-    bool ascending;
-  };
-
-  typedef std::vector<SortDescriptor> SortDescriptors;
-
-  // Creates a new table using the model and columns specified.
-  // The table type applies to the content of the first column (text, icon and
-  // text, checkbox and text).
-  TableView(ui::TableModel* model,
-            const std::vector<ui::TableColumn>& columns,
-            TableTypes table_type,
-            bool single_selection);
-  virtual ~TableView();
-
-  // Assigns a new model to the table view, detaching the old one if present.
-  // If |model| is NULL, the table view cannot be used after this call. This
-  // should be called in the containing view's destructor to avoid destruction
-  // issues when the model needs to be deleted before the table.
-  void SetModel(ui::TableModel* model);
-  ui::TableModel* model() const { return model_; }
-
-  // Returns a new ScrollView that contains the receiver.
-  View* CreateParentIfNecessary();
-
-  void SetRowBackgroundPainter(
-      scoped_ptr<TableViewRowBackgroundPainter> painter);
-
-  // Sets the TableGrouper. TableView does not own |grouper| (common use case is
-  // to have TableModel implement TableGrouper).
-  void SetGrouper(TableGrouper* grouper);
-
-  // Returns the number of rows in the TableView.
-  int RowCount() const;
-
-  // Returns the number of selected rows.
-  // TODO(sky): remove this and force callers to use selection_model().
-  int SelectedRowCount();
-
-  // Selects the specified item, making sure it's visible.
-  void Select(int model_row);
-
-  // Returns the first selected row in terms of the model.
-  int FirstSelectedRow();
-
-  const ui::ListSelectionModel& selection_model() const {
-    return selection_model_;
-  }
-
-  // Changes the visibility of the specified column (by id).
-  void SetColumnVisibility(int id, bool is_visible);
-  bool IsColumnVisible(int id) const;
-
-  // Adds the specified column. |col| is not made visible.
-  void AddColumn(const ui::TableColumn& col);
-
-  // Returns true if the column with the specified id is known (either visible
-  // or not).
-  bool HasColumn(int id) const;
-
-  // TODO(sky): rename to set_observer().
-  void SetObserver(TableViewObserver* observer) {
-    table_view_observer_ = observer;
-  }
-  TableViewObserver* observer() const { return table_view_observer_; }
-
-  const std::vector<VisibleColumn>& visible_columns() const {
-    return visible_columns_;
-  }
-
-  // Sets the width of the column. |index| is in terms of |visible_columns_|.
-  void SetVisibleColumnWidth(int index, int width);
-
-  // Toggles the sort order of the specified visible column index.
-  void ToggleSortOrder(int visible_column_index);
-
-  const SortDescriptors& sort_descriptors() const { return sort_descriptors_; }
-  bool is_sorted() const { return !sort_descriptors_.empty(); }
-
-  // Maps from the index in terms of the model to that of the view.
-  int ModelToView(int model_index) const;
-
-  // Maps from the index in terms of the view to that of the model.
-  int ViewToModel(int view_index) const;
-
-  int row_height() const { return row_height_; }
-
-  // View overrides:
-  virtual void Layout() override;
-  virtual gfx::Size GetPreferredSize() const override;
-  virtual bool OnKeyPressed(const ui::KeyEvent& event) override;
-  virtual bool OnMousePressed(const ui::MouseEvent& event) override;
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
-  virtual bool GetTooltipText(const gfx::Point& p,
-                              base::string16* tooltip) const override;
-  virtual bool GetTooltipTextOrigin(const gfx::Point& p,
-                                    gfx::Point* loc) const override;
-
-  // ui::TableModelObserver overrides:
-  virtual void OnModelChanged() override;
-  virtual void OnItemsChanged(int start, int length) override;
-  virtual void OnItemsAdded(int start, int length) override;
-  virtual void OnItemsRemoved(int start, int length) override;
-
- protected:
-  // View overrides:
-  virtual gfx::Point GetKeyboardContextMenuLocation() override;
-  virtual void OnPaint(gfx::Canvas* canvas) override;
-  virtual void OnFocus() override;
-  virtual void OnBlur() override;
-
- private:
-  friend class TableViewTestHelper;
-  struct GroupSortHelper;
-  struct SortHelper;
-
-  // Used during painting to determine the range of cells that need to be
-  // painted.
-  // NOTE: the row indices returned by this are in terms of the view and column
-  // indices in terms of |visible_columns_|.
-  struct VIEWS_EXPORT PaintRegion {
-    PaintRegion();
-    ~PaintRegion();
-
-    int min_row;
-    int max_row;
-    int min_column;
-    int max_column;
-  };
-
-  // Used by AdvanceSelection() to determine the direction to change the
-  // selection.
-  enum AdvanceDirection {
-    ADVANCE_DECREMENT,
-    ADVANCE_INCREMENT,
-  };
-
-  // Invoked when the number of rows changes in some way.
-  void NumRowsChanged();
-
-  // Resets the sort descriptions.
-  void SetSortDescriptors(const SortDescriptors& sort_descriptors);
-
-  // Does the actual sort and updates the mappings (|view_to_model_| and
-  // |model_to_view_|) appropriately.
-  void SortItemsAndUpdateMapping();
-
-  // Used to sort the two rows. Returns a value < 0, == 0 or > 0 indicating
-  // whether the row2 comes before row1, row2 is the same as row1 or row1 comes
-  // after row2. This invokes CompareValues on the model with the sorted column.
-  int CompareRows(int model_row1, int model_row2);
-
-  // Returns the bounds of the specified row.
-  gfx::Rect GetRowBounds(int row) const;
-
-  // Returns the bounds of the specified cell. |visible_column_index| indexes
-  // into |visible_columns_|.
-  gfx::Rect GetCellBounds(int row, int visible_column_index) const;
-
-  // Adjusts |bounds| based on where the text should be painted. |bounds| comes
-  // from GetCellBounds() and |visible_column_index| is the corresponding column
-  // (in terms of |visible_columns_|).
-  void AdjustCellBoundsForText(int visible_column_index,
-                               gfx::Rect* bounds) const;
-
-  // Creates |header_| if necessary.
-  void CreateHeaderIfNecessary();
-
-  // Updates the |x| and |width| of each of the columns in |visible_columns_|.
-  void UpdateVisibleColumnSizes();
-
-  // Returns the cells that need to be painted for the specified region.
-  // |bounds| is in terms of |this|.
-  PaintRegion GetPaintRegion(const gfx::Rect& bounds) const;
-
-  // Returns the bounds that need to be painted based on the clip set on
-  // |canvas|.
-  gfx::Rect GetPaintBounds(gfx::Canvas* canvas) const;
-
-  // Invokes SchedulePaint() for the selected rows.
-  void SchedulePaintForSelection();
-
-  // Returns the TableColumn matching the specified id.
-  ui::TableColumn FindColumnByID(int id) const;
-
-  // Sets the selection to the specified index (in terms of the view).
-  void SelectByViewIndex(int view_index);
-
-  // Sets the selection model to |new_selection|.
-  void SetSelectionModel(const ui::ListSelectionModel& new_selection);
-
-  // Advances the selection (from the active index) in the specified direction.
-  void AdvanceSelection(AdvanceDirection direction);
-
-  // Sets |model| appropriately based on a event.
-  void ConfigureSelectionModelForEvent(const ui::LocatedEvent& event,
-                                       ui::ListSelectionModel* model) const;
-
-  // Set the selection state of row at |view_index| to |select|, additionally
-  // any other rows in the GroupRange containing |view_index| are updated as
-  // well. This does not change the anchor or active index of |model|.
-  void SelectRowsInRangeFrom(int view_index,
-                             bool select,
-                             ui::ListSelectionModel* model) const;
-
-  // Returns the range of the specified model index. If a TableGrouper has not
-  // been set this returns a group with a start of |model_index| and length of
-  // 1.
-  GroupRange GetGroupRange(int model_index) const;
-
-  // Used by both GetTooltipText methods. Returns true if there is a tooltip and
-  // sets |tooltip| and/or |tooltip_origin| as appropriate, each of which may be
-  // NULL.
-  bool GetTooltipImpl(const gfx::Point& location,
-                      base::string16* tooltip,
-                      gfx::Point* tooltip_origin) const;
-
-  ui::TableModel* model_;
-
-  std::vector<ui::TableColumn> columns_;
-
-  // The set of visible columns. The values of these point to |columns_|. This
-  // may contain a subset of |columns_|.
-  std::vector<VisibleColumn> visible_columns_;
-
-  // The header. This is only created if more than one column is specified or
-  // the first column has a non-empty title.
-  TableHeader* header_;
-
-  const TableTypes table_type_;
-
-  const bool single_selection_;
-
-  // TODO(sky): rename to observer_.
-  TableViewObserver* table_view_observer_;
-
-  // The selection, in terms of the model.
-  ui::ListSelectionModel selection_model_;
-
-  gfx::FontList font_list_;
-
-  int row_height_;
-
-  // Width of the ScrollView last time Layout() was invoked. Used to determine
-  // when we should invoke UpdateVisibleColumnSizes().
-  int last_parent_width_;
-
-  // The width we layout to. This may differ from |last_parent_width_|.
-  int layout_width_;
-
-  // Current sort.
-  SortDescriptors sort_descriptors_;
-
-  // Mappings used when sorted.
-  std::vector<int> view_to_model_;
-  std::vector<int> model_to_view_;
-
-  scoped_ptr<TableViewRowBackgroundPainter> row_background_painter_;
-
-  TableGrouper* grouper_;
-
-  // True if in SetVisibleColumnWidth().
-  bool in_set_visible_column_width_;
-
-  DISALLOW_COPY_AND_ASSIGN(TableView);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_CONTROLS_TABLE_TABLE_VIEW_VIEWS_H_