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

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