third_party/WebKit/public/platform/WebScreenInfo.h

   1 /*
   2  * Copyright (C) 2009 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef WebScreenInfo_h
  32 #define WebScreenInfo_h
  33
  34 #include "WebRect.h"
  35 #include "public/platform/modules/screen_orientation/WebScreenOrientationType.h"
  36
  37 namespace blink {
  38
  39 struct WebScreenInfo {
  40     // Device scale factor. Specifies the ratio between physical and logical
  41     // pixels.
  42     float deviceScaleFactor;
  43
  44     // The screen depth in bits per pixel
  45     int depth;
  46
  47     // The bits per colour component. This assumes that the colours are balanced
  48     // equally.
  49     int depthPerComponent;
  50
  51     // This can be true for black and white printers
  52     bool isMonochrome;
  53
  54     // This is set from the rcMonitor member of MONITORINFOEX, to whit:
  55     //   "A RECT structure that specifies the display monitor rectangle,
  56     //   expressed in virtual-screen coordinates. Note that if the monitor
  57     //   is not the primary display monitor, some of the rectangle's
  58     //   coordinates may be negative values."
  59     WebRect rect;
  60
  61     // This is set from the rcWork member of MONITORINFOEX, to whit:
  62     //   "A RECT structure that specifies the work area rectangle of the
  63     //   display monitor that can be used by applications, expressed in
  64     //   virtual-screen coordinates. Windows uses this rectangle to
  65     //   maximize an application on the monitor. The rest of the area in
  66     //   rcMonitor contains system windows such as the task bar and side
  67     //   bars. Note that if the monitor is not the primary display monitor,
  68     //   some of the rectangle's coordinates may be negative values".
  69     WebRect availableRect;
  70
  71     // This is the orientation 'type' or 'name', as in landscape-primary or
  72     // portrait-secondary for examples.
  73     // See WebScreenOrientationType.h for the full list.
  74     WebScreenOrientationType orientationType;
  75
  76     // This is the orientation angle of the displayed content in degrees.
  77     // It is the opposite of the physical rotation.
  78     uint16_t orientationAngle;
  79
  80     WebScreenInfo()
  81         : deviceScaleFactor(1)
  82         , depth(0)
  83         , depthPerComponent(0)
  84         , isMonochrome(false)
  85         , orientationType(WebScreenOrientationUndefined)
  86         , orientationAngle(0) { }
  87
  88     bool operator==(const WebScreenInfo& other) const
  89     {
  90         return this->deviceScaleFactor == other.deviceScaleFactor
  91             && this->depth == other.depth
  92             && this->depthPerComponent == other.depthPerComponent
  93             && this->isMonochrome == other.isMonochrome
  94             && this->rect == other.rect
  95             && this->availableRect == other.availableRect
  96             && this->orientationType == other.orientationType
  97             && this->orientationAngle == other.orientationAngle;
  98     }
  99
 100     bool operator!=(const WebScreenInfo& other) const
 101     {
 102         return !this->operator==(other);
 103     }
 104 };
 105
 106 } // namespace blink
 107
 108 #endif