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1 /*
2  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_H_
12 #define WEBRTC_MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_H_
13 
14 #include <ApplicationServices/ApplicationServices.h>
15 #include <Carbon/Carbon.h>
16 #include <vector>
17 
18 #include "webrtc/typedefs.h"
19 #include "webrtc/modules/desktop_capture/desktop_geometry.h"
20 
21 namespace webrtc {
22 
23 // Describes the configuration of a specific display.
24 struct MacDisplayConfiguration {
25   MacDisplayConfiguration();
26 
27   // Cocoa identifier for this display.
28   CGDirectDisplayID id;
29 
30   // Bounds of this display in Density-Independent Pixels (DIPs).
31   DesktopRect bounds;
32 
33   // Bounds of this display in physical pixels.
34   DesktopRect pixel_bounds;
35 
36   // Scale factor from DIPs to physical pixels.
37   float dip_to_pixel_scale;
38 };
39 
40 typedef std::vector<MacDisplayConfiguration> MacDisplayConfigurations;
41 
42 // Describes the configuration of the whole desktop.
43 struct MacDesktopConfiguration {
44   // Used to request bottom-up or top-down coordinates.
45   enum Origin { BottomLeftOrigin, TopLeftOrigin };
46 
47   MacDesktopConfiguration();
48   ~MacDesktopConfiguration();
49 
50   // Returns the desktop & display configurations in Cocoa-style "bottom-up"
51   // (the origin is the bottom-left of the primary monitor, and coordinates
52   // increase as you move up the screen) or Carbon-style "top-down" coordinates.
53   static MacDesktopConfiguration GetCurrent(Origin origin);
54 
55   // Returns true if the given desktop configuration equals this one.
56   bool Equals(const MacDesktopConfiguration& other);
57 
58   // Returns the pointer to the display configuration with the specified id.
59   const MacDisplayConfiguration* FindDisplayConfigurationById(
60       CGDirectDisplayID id);
61 
62   // Bounds of the desktop excluding monitors with DPI settings different from
63   // the main monitor. In Density-Independent Pixels (DIPs).
64   DesktopRect bounds;
65 
66   // Same as bounds, but expressed in physical pixels.
67   DesktopRect pixel_bounds;
68 
69   // Scale factor from DIPs to physical pixels.
70   float dip_to_pixel_scale;
71 
72   // Configurations of the displays making up the desktop area.
73   MacDisplayConfigurations displays;
74 };
75 
76 }  // namespace webrtc
77 
78 #endif  // WEBRTC_MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_H_
79