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

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   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
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   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 #if NET_2_0
  47                 private int             bits_per_pixel;
  48 #endif
  49                 #endregion      // Local Variables
  50
  51                 #region Constructors
  52                 private Screen() {
  53                         this.primary = true;
  54                         this.bounds = SystemInformation.WorkingArea;
  55                 }
  56
  57                 private Screen(bool primary, string name, Rectangle bounds, Rectangle workarea) {
  58                         this.primary = primary;
  59                         this.name = name;
  60                         this.bounds = bounds;
  61                         this.workarea = workarea;
  62 #if NET_2_0
  63                         this.bits_per_pixel = 32;
  64 #endif
  65                 }
  66                 #endregion      // Constructors
  67
  68                 #region Public Static Properties
  69                 public static Screen[] AllScreens {
  70                         get {
  71                                 return all_screens;
  72                         }
  73                 }
  74
  75                 public static Screen PrimaryScreen {
  76                         get {
  77                                 return all_screens[0];
  78                         }
  79                 }
  80                 #endregion      // Public Static Properties
  81
  82                 #region Public Instance Properties
  83 #if NET_2_0
  84                 [MonoTODO ("Stub, always returns 32")]
  85                 public int BitsPerPixel {
  86                         get { return bits_per_pixel; }
  87                 }
  88 #endif
  89
  90                 public Rectangle Bounds {
  91                         get {
  92                                 return this.bounds;
  93                         }
  94                 }
  95
  96                 public string DeviceName {
  97                         get {
  98                                 return this.name;
  99                         }
 100                 }
 101
 102                 public bool Primary {
 103                         get {
 104                                 return this.primary;
 105                         }
 106                 }
 107
 108                 public Rectangle WorkingArea {
 109                         get {
 110                                 return this.workarea;
 111                         }
 112                 }
 113                 #endregion      // Public Instance Properties
 114
 115                 #region Public Static Methods
 116                 public static Screen FromControl(Control control) {
 117                         return Screen.FromPoint(control.Location);
 118                 }
 119
 120                 public static Screen FromHandle(IntPtr hwnd) {
 121                         Control control;
 122
 123                         control = Control.FromHandle(hwnd);
 124                         if (control != null) {
 125                                 return Screen.FromPoint(control.Location);
 126                         }
 127                         return Screen.PrimaryScreen;
 128                 }
 129
 130                 public static Screen FromPoint(Point point) {
 131                         for (int i = 0; i < all_screens.Length; i++) {
 132                                 if (all_screens[i].Bounds.Contains(point)) {
 133                                         return all_screens[i];
 134                                 }
 135                         }
 136                         return Screen.PrimaryScreen;
 137                 }
 138
 139                 public static Screen FromRectangle(Rectangle rect) {
 140                         return Screen.FromPoint(new Point(rect.Left, rect.Top));
 141                 }
 142
 143                 public static Rectangle GetBounds(Control ctl) {
 144                         return Screen.FromControl(ctl).Bounds;
 145                 }
 146
 147                 public static Rectangle GetBounds(Point pt) {
 148                         return Screen.FromPoint(pt).Bounds;
 149                 }
 150
 151                 public static Rectangle GetBounds(Rectangle rect) {
 152                         return Screen.FromRectangle(rect).Bounds;
 153                 }
 154
 155                 public static Rectangle GetWorkingArea(Control ctl) {
 156                         return Screen.FromControl(ctl).WorkingArea;
 157                 }
 158
 159                 public static Rectangle GetWorkingArea(Point pt) {
 160                         return Screen.FromPoint(pt).WorkingArea;
 161                 }
 162
 163                 public static Rectangle GetWorkingArea(Rectangle rect) {
 164                         return Screen.FromRectangle(rect).WorkingArea;
 165                 }
 166                 #endregion      // Public Static Methods
 167
 168                 #region Public Instance Methods
 169                 public override bool Equals(object obj) {
 170                         if (obj is Screen) {
 171                                 Screen s = (Screen)obj;
 172
 173                                 if (name.Equals(s.name) && (primary == s.primary) && (bounds.Equals(s.Bounds)) && (workarea.Equals(s.workarea))) {
 174                                         return true;
 175                                 }
 176                         }
 177                         return false;
 178                 }
 179
 180                 public override int GetHashCode() {
 181                         return base.GetHashCode ();
 182                 }
 183
 184                 public override string ToString() {
 185                         return "Screen[Bounds={" + this.Bounds + "} WorkingArea={" + this.WorkingArea + "} Primary={" + this.Primary + "} DeviceName=" + this.DeviceName;
 186                 }
 187
 188
 189                 #endregion      // Public Instance Methods
 190         }
 191 }