init ui program

1 files changed, 104 insertions, 0 deletions

diff --git a/xmake/core/ui/point.lua b/xmake/core/ui/point.lua
new file mode 100644
index 000000000..56c586436
--- /dev/null
+++ b/xmake/core/ui/point.lua
@@ -0,0 +1,104 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+-- 
+-- Copyright (C) 2015 - 2017, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        point.lua
+--
+
+--[[ Console User Interface (cui) ]-----------------------------------------
+Author: Tiago Dionizio (tiago.dionizio AT gmail.com)
+$Id: point.lua 18 2007-06-21 20:43:52Z tngd $
+--------------------------------------------------------------------------]]
+
+-- load modules
+local object = require("ui/object")
+
+-- define module
+local point = point or object { _init = {"x", "y"} }
+
+-- add delta x and y
+function point:addxy(dx, dy)
+    self.x = self.x + dx
+    self.y = self.y + dy
+    return self
+end
+
+-- add point
+function point:add(p)
+    return self:addxy(p.x, p.y)
+end
+
+-- sub delta x and y
+function point:subxy(dx, dy)
+    return self:addxy(-dx, -dy)
+end
+
+-- sub point
+function point:sub(p)
+    return self:addxy(-p.x, -p.y)
+end
+
+-- p1 + p2
+function point:__add(p)
+    local np = self()
+    np.x = np.x + p.x
+    np.y = np.y + p.y
+    return np
+end
+
+-- p1 - p2
+function point:__sub(p)
+    local np = self()
+    np.x = np.x - p.x
+    np.y = np.y - p.y
+    return np
+end
+
+-- -p
+function point:__unm()
+    local p = self()
+    p.x = -p.x
+    p.y = -p.y
+    return p
+end
+
+-- p1 == p2?
+function point:__eq(p)
+    return self.x == p.x and self.y == p.y
+end
+
+-- tostring(p)
+function point:__tostring()
+    return '(' .. self.x .. ',' .. self.y .. ')'
+end
+
+-- p1 .. p2
+function point.__concat(op1, op2)
+    if type(op1) == 'string' then
+        return op1 .. op2:__tostring()
+    elseif type(op2) == 'string' then
+        return op1:__tostring() .. op2
+    else
+        return op1:__tostring() .. op2:__tostring()
+    end
+end
+
+-- return module
+return point