mcs/class/Managed.Windows.Forms/System.Windows.Forms/Screen.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
  21 //
  22 // Authors:
  23 //      Peter Bartok    (pbartok@novell.com)
  24 //
  25 //
  26
  27 // NOTE: We made a concious decision to have only a single 'screen'
  28 // due to the differences in platforms. On Win32 we could gather
  29 // all information, but not for X11 (and possibly Mac). So for now
  30 // we'll stick with a single screen, but the functions are still
  31 // written to support multiple screens, simply beef up the all_screens
  32 // assignment to get multiples
  33 // To support multiples, we need to use GetMonitorInfo API on Win32
  34
  35 using System;
  36 using System.Drawing;
  37
  38 namespace System.Windows.Forms {
  39         public class Screen {
  40                 #region Local Variables
  41                 private static Screen[] all_screens = { new Screen(true, "Mono MWF Primary Display", SystemInformation.VirtualScreen, SystemInformation.WorkingArea) };
  42                 private bool            primary;
  43                 private Rectangle       bounds;
  44                 private Rectangle       workarea;
  45                 private string          name;
  46
  47                 #endregion      // Local Variables
  48
  49                 #region Constructors
  50                 private Screen() {
  51                         this.primary = true;
  52                         this.bounds = SystemInformation.WorkingArea;
  53                 }
  54
  55                 private Screen(bool primary, string name, Rectangle bounds, Rectangle workarea) {
  56                         this.primary = primary;
  57                         this.name = name;
  58                         this.bounds = bounds;
  59                         this.workarea = workarea;
  60                 }
  61                 #endregion      // Constructors
  62
  63                 #region Public Static Properties
  64                 public static Screen[] AllScreens {
  65                         get {
  66                                 return all_screens;
  67                         }
  68                 }
  69
  70                 public static Screen PrimaryScreen {
  71                         get {
  72                                 return all_screens[0];
  73                         }
  74                 }
  75                 #endregion      // Public Static Properties
  76
  77                 #region Public Instance Properties
  78                 public Rectangle Bounds {
  79                         get {
  80                                 return this.bounds;
  81                         }
  82                 }
  83
  84                 public string DeviceName {
  85                         get {
  86                                 return this.name;
  87                         }
  88                 }
  89
  90                 public bool Primary {
  91                         get {
  92                                 return this.primary;
  93                         }
  94                 }
  95
  96                 public Rectangle WorkingArea {
  97                         get {
  98                                 return this.workarea;
  99                         }
 100                 }
 101                 #endregion      // Public Instance Properties
 102
 103                 #region Public Static Methods
 104                 public static Screen FromControl(Control control) {
 105                         return Screen.FromPoint(control.Location);
 106                 }
 107
 108                 public static Screen FromHandle(IntPtr hwnd) {
 109                         Control control;
 110
 111                         control = Control.FromHandle(hwnd);
 112                         if (control != null) {
 113                                 return Screen.FromPoint(control.Location);
 114                         }
 115                         return Screen.PrimaryScreen;
 116                 }
 117
 118                 public static Screen FromPoint(Point point) {
 119                         for (int i = 0; i < all_screens.Length; i++) {
 120                                 if (all_screens[i].Bounds.Contains(point)) {
 121                                         return all_screens[i];
 122                                 }
 123                         }
 124                         return Screen.PrimaryScreen;
 125                 }
 126
 127                 public static Screen FromRectangle(Rectangle rect) {
 128                         return Screen.FromPoint(new Point(rect.Left, rect.Top));
 129                 }
 130
 131                 public static Rectangle GetBounds(Control ctl) {
 132                         return Screen.FromControl(ctl).Bounds;
 133                 }
 134
 135                 public static Rectangle GetBounds(Point pt) {
 136                         return Screen.FromPoint(pt).Bounds;
 137                 }
 138
 139                 public static Rectangle GetBounds(Rectangle rect) {
 140                         return Screen.FromRectangle(rect).Bounds;
 141                 }
 142
 143                 public static Rectangle GetWorkingArea(Control ctl) {
 144                         return Screen.FromControl(ctl).WorkingArea;
 145                 }
 146
 147                 public static Rectangle GetWorkingArea(Point pt) {
 148                         return Screen.FromPoint(pt).WorkingArea;
 149                 }
 150
 151                 public static Rectangle GetWorkingArea(Rectangle rect) {
 152                         return Screen.FromRectangle(rect).WorkingArea;
 153                 }
 154                 #endregion      // Public Static Methods
 155
 156                 #region Public Instance Methods
 157                 public override bool Equals(object obj) {
 158                         if (obj is Screen) {
 159                                 Screen s = (Screen)obj;
 160
 161                                 if (name.Equals(s.name) && (primary == s.primary) && (bounds.Equals(s.Bounds)) && (workarea.Equals(s.workarea))) {
 162                                         return true;
 163                                 }
 164                         }
 165                         return false;
 166                 }
 167
 168                 public override int GetHashCode() {
 169                         return base.GetHashCode ();
 170                 }
 171
 172                 public override string ToString() {
 173                         return "Screen[Bounds={" + this.Bounds + "} WorkingArea={" + this.WorkingArea + "} Primary={" + this.Primary + "} DeviceName=" + this.DeviceName;
 174                 }
 175
 176
 177                 #endregion      // Public Instance Methods
 178         }
 179 }