mcs/class/Mono.Cairo/Samples/x11/x11.cs

   1 //
   2 //
   3 //      X11 Interface
   4 //      Authors: Hisham Mardam Bey <hisham.mardambey@gmail.com>
   5 //
   6
   7 //
   8 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System;
  31 using Cairo;
  32 using System.Runtime.InteropServices;
  33
  34
  35         public class Window {
  36
  37                 protected IntPtr display;
  38                 protected int screen;
  39                 protected IntPtr window;
  40                 protected IntPtr gc;
  41                 protected uint width = 0;
  42                 protected uint height = 0;
  43
  44                 public Window () {
  45                 }
  46
  47                 public Window (uint width, uint height)
  48                 {
  49                         this.width = width;
  50                         this.height = height;
  51
  52                         display = X11.XOpenDisplay (0);
  53
  54                         IntPtr root = X11.XDefaultRootWindow (display);
  55                         screen = X11.XDefaultScreen (display);
  56
  57                         window = X11.XCreateSimpleWindow (display, root, 0, 0,
  58                                               width, height, (ulong)0,
  59                                               X11.XWhitePixel (display, screen),
  60                                               X11.XWhitePixel (display, screen));
  61                 }
  62
  63                 public int Show ()
  64                 {
  65                         return X11.XMapWindow(display, window);
  66                 }
  67
  68                 public int Clear ()
  69                 {
  70                         return X11.XClearWindow (display, window);
  71                 }
  72
  73                 public uint Width {
  74                         get { return width; }
  75                         set { width = value; }
  76                 }
  77
  78                 public uint Height {
  79                         get { return height; }
  80                         set { height = value; }
  81                 }
  82
  83                 public IntPtr Display {
  84                         get { return display; }
  85                 }
  86
  87                 public IntPtr XWindow {
  88                         get { return window; }
  89                 }
  90
  91                 public int Screen {
  92                         get { return screen; }
  93                 }
  94
  95                 public void Close ()
  96                 {
  97                          X11.XCloseDisplay(display);
  98                 }
  99
 100         }
 101
 102
 103         public class X11
 104         {
 105                 [DllImport("X11")]
 106                   internal static extern IntPtr XDefaultVisual (IntPtr display,
 107                                                                 int screen_number);
 108
 109                 [DllImport("X11")]
 110                   internal static extern IntPtr XDefaultRootWindow (IntPtr display);
 111
 112                 [DllImport("X11")]
 113                   internal static extern int XDefaultScreen (IntPtr display);
 114
 115                 [DllImport("X11")]
 116                   internal static extern IntPtr XCreateSimpleWindow (IntPtr display,
 117                                                               IntPtr window,
 118                                                               int x,
 119                                                               int y,
 120                                                               uint width,
 121                                                               uint height,
 122                                                               ulong border_width,
 123                                                               ulong border,
 124                                                               ulong background);
 125                 [DllImport("X11")]
 126                   internal static extern int XMapWindow (IntPtr display,
 127                                                          IntPtr window);
 128
 129                 [DllImport("X11")]
 130                   internal static extern int XClearWindow (IntPtr display,
 131                                                            IntPtr window);
 132
 133                 [DllImport("X11")]
 134                   internal static extern IntPtr XOpenDisplay (int display_name);
 135
 136                 [DllImport("X11")]
 137                   internal static extern IntPtr XScreenOfDisplay (IntPtr display,
 138                                                                   int screen_number);
 139
 140                 [DllImport("X11")]
 141                   internal static extern int XCloseDisplay(IntPtr display);
 142
 143                 [DllImport("X11")]
 144                   internal static extern ulong XBlackPixel (IntPtr display,
 145                                                             int screen);
 146
 147                 [DllImport("X11")]
 148                   internal static extern ulong XWhitePixel (IntPtr display,
 149                                                             int screen);
 150
 151                 [DllImport("X11")]
 152                   internal static extern int XNextEvent (IntPtr display,
 153                                                          IntPtr event_return);
 154         }
 155