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 namespace internal {
  15
  16 class ASH_EXPORT DisplayLayoutStore {
  17  public:
  18   DisplayLayoutStore();
  19   ~DisplayLayoutStore();
  20
  21   const DisplayLayout& default_display_layout() const {
  22     return default_display_layout_;
  23   }
  24   void SetDefaultDisplayLayout(const DisplayLayout& layout);
  25
  26   // Registeres the display layout info for the specified display(s).
  27   void RegisterLayoutForDisplayIdPair(int64 id1,
  28                                       int64 id2,
  29                                       const DisplayLayout& layout);
  30
  31   // If no layout is registered, it creatas new layout using
  32   // |default_display_layout_|.
  33   DisplayLayout GetRegisteredDisplayLayout(const DisplayIdPair& pair);
  34
  35   // Returns the display layout for the display id pair
  36   // with display swapping applied.  That is, this returns
  37   // flipped layout if the displays are swapped.
  38   DisplayLayout ComputeDisplayLayoutForDisplayIdPair(
  39       const DisplayIdPair& display_pair);
  40
  41   // Update the mirrored flag in the display layout for
  42   // |display_pair|.  This creates new display layout if no layout is
  43   // registered for |display_pair|.
  44   void UpdateMirrorStatus(const DisplayIdPair& display_pair,
  45                           bool mirrored);
  46
  47   // Update the |primary_id| in the display layout for
  48   // |display_pair|.  This creates new display layout if no layout is
  49   // registered for |display_pair|.
  50   void UpdatePrimaryDisplayId(const DisplayIdPair& display_pair,
  51                               int64 display_id);
  52
  53  private:
  54   // Creates new layout for display pair from |default_display_layout_|.
  55   DisplayLayout CreateDisplayLayout(const DisplayIdPair& display_pair);
  56
  57   // The default display layout.
  58   DisplayLayout default_display_layout_;
  59
  60   // Display layout per pair of devices.
  61   std::map<DisplayIdPair, DisplayLayout> paired_layouts_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(DisplayLayoutStore);
  64 };
  65
  66 }  // namespace internal
  67 }  // namespace ash
  68
  69 #endif  // ASH_DISPLAY_DISPLAY_LAYOUT_STORE_H_