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authorarg@mig29 <unknown>2006-10-30 12:26:55 +0100
committerarg@mig29 <unknown>2006-10-30 12:26:55 +0100
commit51c7589c8754dd171f218663d83957e1d9fe0429 (patch)
tree4aaff9096b7dade4385ac4762b4097515c08898b
parent99785382ae6d4b20e8baf33542059e466e0b3c7c (diff)
downloaddwm-51c7589c8754dd171f218663d83957e1d9fe0429.tar.gz
fixed stupid bug of snap-to-screen
-rw-r--r--event.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/event.c b/event.c
index 007dbbc..19db371 100644
--- a/event.c
+++ b/event.c
@@ -48,13 +48,13 @@ movemouse(Client *c) {
 			XSync(dpy, False);
 			c->x = ocx + (ev.xmotion.x - x1);
 			c->y = ocy + (ev.xmotion.y - y1);
-			if(abs(c->x) < sx + SNAP)
+			if(abs(c->x) < SNAP)
 				c->x = sx;
-			else if(c->x + c->w > sx + sw - SNAP)
+			else if(abs((sx + sw) - (c->x + c->w)) < SNAP)
 				c->x = sw - c->w - 2 * BORDERPX;
-			if(abs(c->y) < sy + bh + SNAP)
+			if(abs((sy + bh) - c->y) < SNAP)
 				c->y = sy + bh;
-			else if(c->y + c->h > sy + sh - SNAP)
+			else if(abs((sy + sh) - (c->y + c->h)) < SNAP)
 				c->y = sh - c->h - 2 * BORDERPX;
 			resize(c, False, TopLeft);
 			break;
5'>115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287
import macros, macro_dsl, estreams
from strutils import format

template newLenName() =
  let lenName {.inject.} = ^("len"& $lenNames)
  inc(lenNames)

template defPacketImports*() {.dirty.} =
  import macros, macro_dsl, estreams
  from strutils import format

macro defPacket*(typeNameN: untyped, typeFields: untyped): untyped =
  result = newNimNode(nnkStmtList)
  let
    typeName = quoted2ident(typeNameN)
    packetID = ^"p"
    streamID = ^"s"
  var
    constructorParams = newNimNode(nnkFormalParams).und(typeName)
    constructor = newNimNode(nnkProcDef).und(
      postfix(^("new"& $typeName.ident), "*"),
      emptyNode(),
      emptyNode(),
      constructorParams,
      emptyNode(),
      emptyNode())
    pack = newNimNode(nnkProcDef).und(
      postfix(^"pack", "*"),
      emptyNode(),
      emptyNode(),
      newNimNode(nnkFormalParams).und(
        emptyNode(),   # : void
        newNimNode(nnkIdentDefs).und(
          streamID,    # s: PBuffer
          ^"PBuffer",
          newNimNode(nnkNilLit)),
        newNimNode(nnkIdentDefs).und(
          packetID,    # p: var typeName
          newNimNode(nnkVarTy).und(typeName),
          emptyNode())),
      emptyNode(),
      emptyNode())
    read = newNimNode(nnkProcDef).und(
      newIdentNode("read"& $typeName.ident).postfix("*"),
      emptyNode(),
      emptyNode(),
      newNimNode(nnkFormalParams).und(
        typeName,   #result type
        newNimNode(nnkIdentDefs).und(
          streamID, # s: PBuffer = nil
          ^"PBuffer",
          newNimNode(nnkNilLit))),
      emptyNode(),
      emptyNode())
    constructorBody = newNimNode(nnkStmtList)
    packBody = newNimNode(nnkStmtList)
    readBody = newNimNode(nnkStmtList)
    lenNames = 0
  for i in 0.. typeFields.len - 1:
    let
      name = typeFields[i][0]
      dotName = packetID.dot(name)
      resName = newIdentNode("result").dot(name)
    case typeFields[i][1].kind
    of nnkBracketExpr: #ex: paddedstring[32, '\0'], array[range, type]
      case $typeFields[i][1][0].ident
      of "seq":
        ## let lenX = readInt16(s)
        newLenName()
        let
          item = ^"item"  ## item name in our iterators
          seqType = typeFields[i][1][1] ## type of seq
          readName = newIdentNode("read"& $seqType.ident)
        readBody.add(newNimNode(nnkLetSection).und(
          newNimNode(nnkIdentDefs).und(
            lenName,
            newNimNode(nnkEmpty),
            newCall("readInt16", streamID))))
        readBody.add(      ## result.name = @[]
          resName := ("@".prefix(newNimNode(nnkBracket))),
          newNimNode(nnkForStmt).und(  ## for item in 1..len:
            item,
            infix(1.lit, "..", lenName),
            newNimNode(nnkStmtList).und(
              newCall(  ## add(result.name, unpack[seqType](stream))
                "add", resName, newNimNode(nnkCall).und(readName, streamID)
        ) ) ) )
        packbody.add(
          newNimNode(nnkVarSection).und(newNimNode(nnkIdentDefs).und(
            lenName,  ## var lenName = int16(len(p.name))
            newIdentNode("int16"),
            newCall("int16", newCall("len", dotName)))),
          newCall("writeBE", streamID, lenName),
          newNimNode(nnkForStmt).und(  ## for item in 0..length - 1: pack(p.name[item], stream)
            item,
            infix(0.lit, "..", infix(lenName, "-", 1.lit)),
            newNimNode(nnkStmtList).und(
              newCall("echo", item, ": ".lit),
              newCall("pack", streamID, dotName[item]))))
        #set the default value to @[] (new sequence)
        typeFields[i][2] = "@".prefix(newNimNode(nnkBracket))
      else:
        error("Unknown type: "& treeRepr(typeFields[i]))
    of nnkIdent: ##normal type
      case $typeFields[i][1].ident
      of "string": # length encoded string
        packBody.add(newCall("write", streamID, dotName))
        readBody.add(resName := newCall("readStr", streamID))
      of "int8", "int16", "int32", "float32", "float64", "char", "bool":
        packBody.add(newCall(
          "writeBE", streamID, dotName))
        readBody.add(resName := newCall("read"& $typeFields[i][1].ident, streamID))
      else:  ## hopefully the type you specified was another defpacket() type
        packBody.add(newCall("pack", streamID, dotName))
        readBody.add(resName := newCall("read"& $typeFields[i][1].ident, streamID))
    else:
      error("I dont know what to do with: "& treerepr(typeFields[i]))

  var
    toStringFunc = newNimNode(nnkProcDef).und(
      newNimNode(nnkPostfix).und(
        ^"*",
        newNimNode(nnkAccQuoted).und(^"$")),
      emptyNode(),
      emptyNode(),
      newNimNode(nnkFormalParams).und(
        ^"string",
        newNimNode(nnkIdentDefs).und(
          packetID, # p: typeName
          typeName,
          emptyNode())),
      emptyNode(),
      emptyNode(),
      newNimNode(nnkStmtList).und(# [6]
        newNimNode(nnkAsgn).und(
          ^"result",                  ## result =
          newNimNode(nnkCall).und(# [6][0][1]
            ^"format",  ## format
            emptyNode()))))  ## "[TypeName   $1   $2]"
    formatStr = "["& $typeName.ident

  const emptyFields = {nnkEmpty, nnkNilLit}
  var objFields = newNimNode(nnkRecList)
  for i in 0 ..< len(typeFields):
    let fname = typeFields[i][0]
    constructorParams.add(newNimNode(nnkIdentDefs).und(
      fname,
      typeFields[i][1],
      typeFields[i][2]))
    constructorBody.add((^"result").dot(fname) := fname)
    #export the name
    typeFields[i][0] = fname.postfix("*")
    if not(typeFields[i][2].kind in emptyFields):
      ## empty the type default for the type def
      typeFields[i][2] = newNimNode(nnkEmpty)
    objFields.add(typeFields[i])
    toStringFunc[6][0][1].add(
      prefix("$", packetID.dot(fname)))
    formatStr.add "   $"
    formatStr.add($(i + 1))

  formatStr.add ']'
  toStringFunc[6][0][1][1] = formatStr.lit()

  result.add(
    newNimNode(nnkTypeSection).und(
      newNimNode(nnkTypeDef).und(
        typeName.postfix("*"),
        newNimNode(nnkEmpty),
        newNimNode(nnkObjectTy).und(
          newNimNode(nnkEmpty), #not sure what this is
          newNimNode(nnkEmpty), #parent: OfInherit(Ident(!"SomeObj"))
          objFields))))
  result.add(constructor.und(constructorBody))
  result.add(pack.und(packBody))
  result.add(read.und(readBody))
  result.add(toStringFunc)
  when defined(GenPacketShowOutput):
    echo(repr(result))

proc newProc*(name: NimNode; params: varargs[NimNode]; resultType: NimNode): NimNode {.compileTime.} =
  result = newNimNode(nnkProcDef).und(
    name,
    emptyNode(),
    emptyNode(),
    newNimNode(nnkFormalParams).und(resultType),
    emptyNode(),
    emptyNode(),
    newNimNode(nnkStmtList))
  result[3].add(params)

proc body*(procNode: NimNode): NimNode {.compileTime.} =
  assert procNode.kind == nnkProcDef and procNode[6].kind == nnkStmtList
  result = procNode[6]

proc iddefs*(a, b: string; c: NimNode): NimNode {.compileTime.} =
  result = newNimNode(nnkIdentDefs).und(^a, ^b, c)
proc iddefs*(a: string; b: NimNode): NimNode {.compileTime.} =
  result = newNimNode(nnkIdentDefs).und(^a, b, emptyNode())
proc varTy*(a: NimNode): NimNode {.compileTime.} =
  result = newNimNode(nnkVarTy).und(a)

macro forwardPacket*(typeName: untyped, underlyingType: untyped): untyped =
  var
    packetID = ^"p"
    streamID = ^"s"
  result = newNimNode(nnkStmtList).und(
    newProc(
      (^("read"& $typeName.ident)).postfix("*"),
      [ iddefs("s", "PBuffer", newNimNode(nnkNilLit)) ],
      typeName),
    newProc(
      (^"pack").postfix("*"),
      [ iddefs("s", "PBuffer", newNimNode(nnkNilLit)),
        iddefs("p", varTy(typeName)) ],
      emptyNode()))
  var
    readBody = result[0][6]
    packBody = result[1][6]
    resName = ^"result"

  case underlyingType.kind
  of nnkBracketExpr:
    case $underlyingType[0].ident
    of "array":
      for i in underlyingType[1][1].intval.int .. underlyingType[1][2].intval.int:
        readBody.add(
          newCall("read", ^"s", resName[lit(i)]))
        packBody.add(
          newCall("writeBE", ^"s", packetID[lit(i)]))
    else:
      echo "Unknown type: ", repr(underlyingtype)
  else:
    echo "unknown type:", repr(underlyingtype)
  echo(repr(result))

template forwardPacketT*(typeName: untyped; underlyingType: untyped) {.dirty.} =
  proc `read typeName`*(buffer: PBuffer): typeName =
    #discard readData(s, addr result, sizeof(result))
    var res: underlyingType
    buffer.read(res)
    result = typeName(res)
  proc `pack`*(buffer: PBuffer; ord: var typeName) =
    #writeData(s, addr p, sizeof(p))
    buffer.write(underlyingType(ord))

when isMainModule:
  type
    SomeEnum = enum
      A = 0'i8,
      B, C
  forwardPacket(SomeEnum, int8)


  defPacket(Foo, tuple[x: array[0..4, int8]])
  var f = newFoo([4'i8, 3'i8, 2'i8, 1'i8, 0'i8])
  var s2 = newStringStream("")
  f.pack(s2)
  assert s2.data == "\4\3\2\1\0"

  var s = newStringStream()
  s.flushImpl = proc(s: PStream) =
    var z = PStringStream(s)
    z.setPosition(0)
    z.data.setLen(0)


  s.setPosition(0)
  s.data.setLen(0)
  var o = B
  o.pack(s)
  o = A
  o.pack(s)
  o = C
  o.pack(s)
  assert s.data == "\1\0\2"
  s.flush

  defPacket(Y, tuple[z: int8])
  proc `$`(z: Y): string = result = "Y(" & $z.z & ")"
  defPacket(TestPkt, tuple[x: seq[Y]])
  var test = newTestPkt()
  test.x.add([newY(5), newY(4), newY(3), newY(2), newY(1)])
  for itm in test.x:
    echo(itm)
  test.pack(s)
  echo(repr(s.data))