remoting/host/screen_resolution.h

   1 // Copyright (c) 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 REMOTING_HOST_SCREEN_RESOLUTION_H_
   6 #define REMOTING_HOST_SCREEN_RESOLUTION_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
  11
  12 namespace remoting {
  13
  14 // Describes a screen's dimensions and DPI.
  15 class ScreenResolution {
  16  public:
  17   ScreenResolution();
  18   ScreenResolution(const webrtc::DesktopSize& dimensions,
  19                    const webrtc::DesktopVector& dpi);
  20
  21   // Returns the screen dimensions scaled according to the passed |new_dpi|.
  22   webrtc::DesktopSize ScaleDimensionsToDpi(
  23       const webrtc::DesktopVector& new_dpi) const;
  24
  25   // Dimensions of the screen in pixels.
  26   const webrtc::DesktopSize& dimensions() const { return dimensions_; }
  27
  28   // The vertical and horizontal DPI of the screen.
  29   const webrtc::DesktopVector& dpi() const { return dpi_; }
  30
  31   // Returns true if |dimensions_| specifies an empty rectangle or when
  32   // IsValid() returns false.
  33   bool IsEmpty() const;
  34
  35   // Returns true if the dimensions and DPI of the two resolutions match.
  36   bool Equals(const ScreenResolution& other) const;
  37
  38  private:
  39   webrtc::DesktopSize dimensions_;
  40   webrtc::DesktopVector dpi_;
  41 };
  42
  43 }  // namespace remoting
  44
  45 #endif  // REMOTING_HOST_SCREEN_RESOLUTION_H_