ash/display/display_layout_store.h

   1 // Copyright 2013 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 #ifndef ASH_DISPLAY_DISPLAY_LAYOUT_STORE_H_
   6 #define ASH_DISPLAY_DISPLAY_LAYOUT_STORE_H_
   7
   8 #include <map>
   9
  10 #include "ash/ash_export.h"
  11 #include "ash/display/display_layout.h"
  12
  13 namespace ash {
  14
  15 class ASH_EXPORT DisplayLayoutStore {
  16  public:
  17   DisplayLayoutStore();
  18   ~DisplayLayoutStore();
  19
  20   const DisplayLayout& default_display_layout() const {
  21     return default_display_layout_;
  22   }
  23   void SetDefaultDisplayLayout(const DisplayLayout& layout);
  24
  25   // Registeres the display layout info for the specified display(s).
  26   void RegisterLayoutForDisplayIdPair(int64 id1,
  27                                       int64 id2,
  28                                       const DisplayLayout& layout);
  29
  30   // If no layout is registered, it creatas new layout using
  31   // |default_display_layout_|.
  32   DisplayLayout GetRegisteredDisplayLayout(const DisplayIdPair& pair);
  33
  34   // Returns the display layout for the display id pair
  35   // with display swapping applied.  That is, this returns
  36   // flipped layout if the displays are swapped.
  37   DisplayLayout ComputeDisplayLayoutForDisplayIdPair(
  38       const DisplayIdPair& display_pair);
  39
  40   // Update the mirrored flag in the display layout for
  41   // |display_pair|.  This creates new display layout if no layout is
  42   // registered for |display_pair|.
  43   void UpdateMirrorStatus(const DisplayIdPair& display_pair,
  44                           bool mirrored);
  45
  46   // Update the |primary_id| in the display layout for
  47   // |display_pair|.  This creates new display layout if no layout is
  48   // registered for |display_pair|.
  49   void UpdatePrimaryDisplayId(const DisplayIdPair& display_pair,
  50                               int64 display_id);
  51
  52  private:
  53   // Creates new layout for display pair from |default_display_layout_|.
  54   DisplayLayout CreateDisplayLayout(const DisplayIdPair& display_pair);
  55
  56   // The default display layout.
  57   DisplayLayout default_display_layout_;
  58
  59   // Display layout per pair of devices.
  60   std::map<DisplayIdPair, DisplayLayout> paired_layouts_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(DisplayLayoutStore);
  63 };
  64
  65 }  // namespace ash
  66
  67 #endif  // ASH_DISPLAY_DISPLAY_LAYOUT_STORE_H_