display_layout_store.cc revision 7dbb3d5cf0c15f500944d211057644d6a2f37371 
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#include <stdio.h>
6
7#include "ash/ash_switches.h"
8#include "ash/display/display_layout_store.h"
9#include "base/command_line.h"
10#include "base/logging.h"
11#include "ui/gfx/display.h"
12
13namespace ash {
14namespace internal {
15
16DisplayLayoutStore::DisplayLayoutStore() {
17  CommandLine* command_line = CommandLine::ForCurrentProcess();
18  if (command_line->HasSwitch(switches::kAshSecondaryDisplayLayout)) {
19    std::string value = command_line->GetSwitchValueASCII(
20        switches::kAshSecondaryDisplayLayout);
21    char layout;
22    int offset = 0;
23    if (sscanf(value.c_str(), "%c,%d", &layout, &offset) == 2) {
24      if (layout == 't')
25        default_display_layout_.position = DisplayLayout::TOP;
26      else if (layout == 'b')
27        default_display_layout_.position = DisplayLayout::BOTTOM;
28      else if (layout == 'r')
29        default_display_layout_.position = DisplayLayout::RIGHT;
30      else if (layout == 'l')
31        default_display_layout_.position = DisplayLayout::LEFT;
32      default_display_layout_.offset = offset;
33    }
34  }
35}
36
37DisplayLayoutStore::~DisplayLayoutStore() {
38}
39
40void DisplayLayoutStore::SetDefaultDisplayLayout(const DisplayLayout& layout) {
41  CommandLine* command_line = CommandLine::ForCurrentProcess();
42  if (!command_line->HasSwitch(switches::kAshSecondaryDisplayLayout))
43    default_display_layout_ = layout;
44}
45
46void DisplayLayoutStore::RegisterLayoutForDisplayIdPair(
47    int64 id1,
48    int64 id2,
49    const DisplayLayout& layout) {
50  paired_layouts_[std::make_pair(id1, id2)] = layout;
51}
52
53DisplayLayout DisplayLayoutStore::GetRegisteredDisplayLayout(
54    const DisplayIdPair& pair) {
55  std::map<DisplayIdPair, DisplayLayout>::const_iterator iter =
56      paired_layouts_.find(pair);
57  return
58      iter != paired_layouts_.end() ? iter->second : CreateDisplayLayout(pair);
59}
60
61DisplayLayout DisplayLayoutStore::ComputeDisplayLayoutForDisplayIdPair(
62    const DisplayIdPair& pair) {
63  DisplayLayout layout = GetRegisteredDisplayLayout(pair);
64  DCHECK_NE(layout.primary_id, gfx::Display::kInvalidDisplayID);
65  // Invert if the primary was swapped. If mirrored, first is always
66  // primary.
67  return (layout.primary_id == gfx::Display::kInvalidDisplayID ||
68          pair.first == layout.primary_id) ? layout : layout.Invert();
69}
70
71void DisplayLayoutStore::UpdateMirrorStatus(const DisplayIdPair& pair,
72                                            bool mirrored) {
73  if (paired_layouts_.find(pair) == paired_layouts_.end())
74    CreateDisplayLayout(pair);
75  paired_layouts_[pair].mirrored = mirrored;
76}
77
78void DisplayLayoutStore::UpdatePrimaryDisplayId(const DisplayIdPair& pair,
79                                                int64 display_id) {
80  if (paired_layouts_.find(pair) == paired_layouts_.end())
81    CreateDisplayLayout(pair);
82  paired_layouts_[pair].primary_id = display_id;
83}
84
85DisplayLayout DisplayLayoutStore::CreateDisplayLayout(
86    const DisplayIdPair& pair) {
87  DisplayLayout layout = default_display_layout_;
88  layout.primary_id = pair.first;
89  paired_layouts_[pair] = layout;
90  return layout;
91}
92
93}  // namespace internal
94}  // namespace ash
95