egfx/xshape.d

   1 module egfx.xshape;
   2
   3 import arsd.simpledisplay;
   4
   5
   6 // ////////////////////////////////////////////////////////////////////////// //
   7 public extern(C) nothrow @nogc {
   8
   9 import core.stdc.config : c_long, c_ulong;
  10
  11 struct XBoxRec {
  12   short x1, x2, y1, y2;
  13 }
  14 alias XBox = XBoxRec*;
  15
  16
  17 // clip region
  18 struct XRegionRec {
  19   c_long size;
  20   c_long numRects;
  21   XBox rects;
  22   XBoxRec extents;
  23 }
  24 alias XRegion = XRegionRec*;
  25
  26
  27 enum ShapeSet = 0;
  28 enum ShapeUnion = 1;
  29 enum ShapeIntersect = 2;
  30 enum ShapeSubtract = 3;
  31 enum ShapeInvert = 4;
  32
  33 enum ShapeBounding = 0;
  34 enum ShapeClip = 1;
  35 enum ShapeInput = 2;
  36
  37 enum ShapeNotifyMask = 1U<<0;
  38 enum ShapeNotify = 0;
  39
  40 enum ShapeNumberEvents = ShapeNotify+1;
  41
  42 struct XShapeEvent {
  43   int type;       /* of event */
  44   c_ulong serial;   /* # of last request processed by server */
  45   Bool send_event;      /* true if this came frome a SendEvent request */
  46   Display* display;     /* Display the event was read from */
  47   Window window;      /* window of event */
  48   int kind;       /* ShapeBounding or ShapeClip */
  49   int x, y;       /* extents of new region */
  50   uint width, height;
  51   Time time;        /* server timestamp when region changed */
  52   Bool shaped;      /* true if the region exists */
  53 }
  54
  55
  56 Bool XShapeQueryExtension (
  57   Display* display,
  58   int* event_base,
  59   int* error_base
  60 );
  61
  62 Status XShapeQueryVersion (
  63   Display* display,
  64   int* major_version,
  65   int* minor_version
  66 );
  67
  68 void XShapeCombineRegion (
  69   Display* display,
  70   Window dest,
  71   int dest_kind,
  72   int x_off,
  73   int y_off,
  74   XRegion region,
  75   int op
  76 );
  77
  78 void XShapeCombineRectangles (
  79   Display* display,
  80   Window dest,
  81   int dest_kind,
  82   int x_off,
  83   int y_off,
  84   XRectangle* rectangles,
  85   int n_rects,
  86   int op,
  87   int ordering
  88 );
  89
  90 void XShapeCombineMask (
  91   Display* display,
  92   Window dest,
  93   int dest_kind,
  94   int x_off,
  95   int y_off,
  96   Pixmap src,
  97   int op
  98 );
  99
 100 void XShapeCombineShape (
 101   Display* display,
 102   Window dest,
 103   int dest_kind,
 104   int x_off,
 105   int y_off,
 106   Window src,
 107   int src_kind,
 108   int op
 109 );
 110
 111 void XShapeOffsetShape (
 112   Display* display,
 113   Window dest,
 114   int dest_kind,
 115   int x_off,
 116   int y_off
 117 );
 118
 119 Status XShapeQueryExtents (
 120   Display* display,
 121   Window window,
 122   Bool* bounding_shaped,
 123   int* x_bounding,
 124   int* y_bounding,
 125   uint* w_bounding,
 126   uint* h_bounding,
 127   Bool* clip_shaped,
 128   int* x_clip,
 129   int* y_clip,
 130   uint* w_clip,
 131   uint* h_clip
 132 );
 133
 134 void XShapeSelectInput (
 135   Display* display,
 136   Window window,
 137   c_ulong mask
 138 );
 139
 140 c_ulong XShapeInputSelected (
 141   Display* display,
 142   Window window
 143 );
 144
 145 XRectangle *XShapeGetRectangles (
 146   Display* display,
 147   Window window,
 148   int kind,
 149   int* count,
 150   int* ordering
 151 );
 152
 153 // ////////////////////////////////////////////////////////////////////////// //
 154 //struct XRegionRec {}
 155 //alias XRegion = XRegionRec*;
 156
 157 enum {
 158   EvenOddRule = 0,
 159   WindingRule = 1,
 160 }
 161
 162
 163 XRegion XCreateRegion ();
 164 int XDestroyRegion (XRegion r);
 165 XRegion XPolygonRegion (XPoint* points, int n, int fill_rule);
 166 int XUnionRegion (XRegion sra, XRegion srb, XRegion dr_return);
 167
 168 }
 169
 170
 171 // ////////////////////////////////////////////////////////////////////////// //
 172 // <0: ooops
 173 public int shapeEvent () {
 174   __gshared static int event = -666;
 175   if (event == -666) {
 176     int dummy;
 177     if (!XShapeQueryExtension(XDisplayConnection.get(), &event, &dummy)) event = -1;
 178   }
 179   return event;
 180 }
 181
 182
 183 /*
 184   {
 185     XRectangle[2] rects;
 186     rects[0] = XRectangle(0, 0, 60, 20);
 187     rects[1] = XRectangle(100, 100, 60, 20);
 188     XShapeCombineRectangles(win.impl.display, win.impl.window, ShapeBounding, 0, 0, rects.ptr, rects.length, ShapeIntersect, 0);
 189     //XShapeCombineRectangles(win.impl.display, win.impl.window, ShapeClip, 0, 0, rects.ptr, rects.length, ShapeIntersect, 0);
 190   }
 191 */