ash/display/display_util.h

   1 // Copyright 2014 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_UTIL_H_
   6 #define ASH_DISPLAY_DISPLAY_UTIL_H_
   7
   8 #include <set>
   9 #include <vector>
  10
  11 #include "ash/ash_export.h"
  12 #include "ash/display/display_layout.h"
  13
  14 namespace gfx {
  15 class Display;
  16 class Point;
  17 class Rect;
  18 }
  19
  20 namespace ash {
  21 class AshWindowTreeHost;
  22 struct DisplayMode;
  23 class DisplayInfo;
  24
  25 // Creates the display mode list for internal display
  26 // based on |native_mode|.
  27 ASH_EXPORT std::vector<DisplayMode> CreateInternalDisplayModeList(
  28     const DisplayMode& native_mode);
  29
  30 // Creates the display mode list for unified display
  31 // based on |native_mode| and |scales|.
  32 ASH_EXPORT std::vector<DisplayMode> CreateUnifiedDisplayModeList(
  33     const DisplayMode& native_mode,
  34     const std::set<float>& scales);
  35
  36 // Returns next valid UI scale.
  37 float GetNextUIScale(const DisplayInfo& info, bool up);
  38
  39 // Tests if the |info| has display mode that matches |ui_scale|.
  40 bool HasDisplayModeForUIScale(const DisplayInfo& info, float ui_scale);
  41
  42 // Computes the bounds that defines the bounds between two displays
  43 // based on the layout |position|.
  44 void ComputeBoundary(const gfx::Display& primary_display,
  45                      const gfx::Display& secondary_display,
  46                      DisplayLayout::Position position,
  47                      gfx::Rect* primary_edge_in_screen,
  48                      gfx::Rect* secondary_edge_in_screen);
  49
  50 // Creates edge bounds from |bounds_in_screen| that fits the edge
  51 // of the native window for |ash_host|.
  52 ASH_EXPORT gfx::Rect GetNativeEdgeBounds(AshWindowTreeHost* ash_host,
  53                                          const gfx::Rect& bounds_in_screen);
  54
  55 // Moves the cursor to the point inside the |ash_host| that is closest to
  56 // the point_in_screen, which may be outside of the root window.
  57 // |update_last_loation_now| is used for the test to update the mouse
  58 // location synchronously.
  59 void MoveCursorTo(AshWindowTreeHost* ash_host,
  60                   const gfx::Point& point_in_screen,
  61                   bool update_last_location_now);
  62
  63 // Returns the index in the displays whose bounds contains |point_in_screen|.
  64 // Returns -1 if no such display exist.
  65 ASH_EXPORT int FindDisplayIndexContainingPoint(
  66     const std::vector<gfx::Display>& displays,
  67     const gfx::Point& point_in_screen);
  68
  69 }  // namespace ash
  70
  71 #endif  // ASH_DISPLAY_DISPLAY_UTIL_H_