Flash管理鼠标监听器[ActionScript]
/*----------------------------文档说明------------------------- * Flash中常用一些自制的形状代替鼠标形状进行一些操作，比如模拟画笔 * 用手的形状拖放、模拟颜料桶，这个时候如果不管理好鼠标监听器的注册 * 卸载，以及鼠标的隐藏和显示的话会有很多意向不到的后果出现。 * 这里写了一个监听器的注册管理函数，用来管理鼠标监听器的注册、卸载、显示 * 和隐藏。 * 首先定义了几个要用到的状态码，定义各种Object用于注册监听器，然后用 * RegMouse函数进行注册，该函数接收一个Number类型的参数，也就是要注册的监听器类型 * 该函数首先卸载当前注册的监听器，然后注册新的监听器，如果当前监听器和要注册的新监听器一样的话 * 就卸载当前监听器，并显示鼠标的默认状态。 * 本例子主要是在制作一个Flash模拟Windows画图板的时候写的，下面是其中的部分代码。 *----------------------------------------------------------------------*/
/*-------------- 鼠标状态定义------------ * */
var _cursorFlag:
Number =
0;
// 记录当前注册的鼠标监听器状态。
var _cursorObj:
Object =
new
Object
(
); _cursorObj.
def =
0; _cursorObj.
drag =
1; _cursorObj.
select =
2; _cursorObj.
tong =
3; _cursorObj.
pip =
4;
/*----------状态码--------------------- * 0:默认状态，无任何形状,只能切换到其他状态后进行操作 * 1:手的形状，可以从物品栏中拖物品 * 2:选择状态，可以选择操作区中的东西 * 3:油漆桶状态，可以涂色 * 4:吸管状态，设置颜色 *------------------------------------- *----------------------------------------*/
// 按钮事件定义
/*--------------- 用于控制菜单消失的鼠标监听器-------- * 当菜单显示出来，并且在菜单之外的地方单击鼠标时，让菜单消失（主要是画图板工具栏上的菜单）* *--------------------------------------------------------------*/
var _mmListen:
Object =
new
Object
(
); _mmListen.
onMouseDown =
function
(
):
Void
{
if
(!menu_mc.
hitTest
(
_xmouse,
_ymouse
)
)
{
Mouse.
addListener
(drawObj
);
Mouse.
removeListener
(_mmListen
); menu_mc.
gotoAndStop
(
1
);
}
};
// 点击颜料桶时注册监听器
var dmtong:
Object =
new
Object
(
); dmtong.
onMouseMove =
function
(
):
Void
{ dmtong_mc.
_x =
_xmouse; dmtong_mc.
_y =
_ymouse;
};
// 吸管工具
var dmpip:
Object =
new
Object
(
); dmpip.
onMouseMove =
function
(
):
Void
{ dmpip_mc.
_x =
_xmouse; dmpip_mc.
_y =
_ymouse;
};
// 选择工具
var dmselect:
Object =
new
Object
(
); dmselect.
onMouseMove =
function
(
):
Void
{ dmcursor_mc.
_x =
_xmouse; dmcursor_mc.
_y =
_ymouse;
};
// 画线工具 line_mc.
clear
(
);
var drawObj:
Object =
new
Object
(
); drawObj.
x1 =
0; drawObj.
y1 =
0; drawObj.
x2 =
0; drawObj.
y2 =
0; drawObj.
xx =
0; drawObj.
yy =
0; drawObj.
drawFlag =
false; drawObj.
moveFlag =
false; drawObj.
startFlag =
false; drawObj.
moveMC =
new
Array
(
);
var plasterFlag:
Boolean =
false; drawObj.
onMouseDown =
function
(
):
Void
{
// 如果在操作区之外按下鼠标，则返回
if
(
_xmouse <=
68 ||
_xmouse >=
400 ||
_ymouse >=
260 ||
_ymouse <=
55
)
{
return;
}
// 如果当前状态是不是移动选中的物品，则记录按下位置，用来画线
if
(drawObj.
moveFlag !=
true
)
{ drawObj.
x1 =
_xmouse; drawObj.
y1 =
_ymouse; drawObj.
drawFlag =
true;
}
else
{ drawObj.
xx =
_xmouse; drawObj.
yy =
_ymouse; drawObj.
moveMC =
new
Array
(
); selectRect
(
);
} drawObj.
startFlag =
true;
}; drawObj.
onMouseUp =
function
(
):
Void
{
if
(drawObj.
moveFlag !=
true
)
{ drawObj.
x2 =
_xmouse; drawObj.
y2 =
_ymouse;
if
(drawObj.
x1 ==
_xmouse && drawObj.
y1 ==
_ymouse
)
{ line_mc.
clear
(
);
}
else
{ dmcursor_mc.
nextFrame
(
);
} drawObj.
drawFlag =
false;
} drawObj.
startFlag =
false;
trace
(
"x1 = " + drawObj.
x1
);
};
// 单鼠标在选中区域内时，变成移动图标，否则变成选择图标。 line_mc.
onEnterFrame =
function
(
):
Void
{
if
(_cursorFlag == _cursorObj.
select && drawObj.
x1 != drawObj.
x2 && drawObj.
y1 != drawObj.
y2 && drawObj.
startFlag ==
false
)
{
if
(
(
_xmouse - drawObj.
x1
) *
(
_xmouse - drawObj.
x2
) <
0 &&
(
_ymouse - drawObj.
y1
) *
(
_ymouse - drawObj.
y2
) <
0
)
{ drawObj.
moveFlag =
true; drawObj.
drawFlag =
false; dmcursor_mc.
gotoAndStop
(
2
);
}
else
{ drawObj.
moveFlag =
false; drawObj.
drawFlag =
true; dmcursor_mc.
gotoAndStop
(
1
);
}
}
}; drawObj.
onMouseMove =
function
(
):
Void
{
trace
(drawObj.
startFlag
);
if
(_cursorFlag == _cursorObj.
select && drawObj.
startFlag ==
true
)
{
if
(drawObj.
moveFlag ==
true
)
{
// 移动
if
(drawObj.
x1 +
(
_xmouse - drawObj.
xx
) <
65 || drawObj.
x1 +
(
_xmouse - drawObj.
xx
) >
400 || drawObj.
x2 +
(
_xmouse - drawObj.
xx
) <
65 || drawObj.
x2 +
(
_xmouse - drawObj.
xx
) >
400 || drawObj.
y1 +
(
_ymouse - drawObj.
yy
) <
50 || drawObj.
y1 +
(
_ymouse - drawObj.
yy
) >
260 || drawObj.
y2 +
(
_ymouse - drawObj.
yy
) <
50 || drawObj.
y2 +
(
_ymouse - drawObj.
yy
) >
260
)
{
return;
}
for
(
var mm
in drawObj.
moveMC
)
{ drawObj.
moveMC
[mm
].
_x +=
_xmouse - drawObj.
xx; drawObj.
moveMC
[mm
].
_y +=
_ymouse - drawObj.
yy; drawObj.
moveMC
[mm
].
x = drawObj.
moveMC
[mm
].
_x; drawObj.
moveMC
[mm
].
y = drawObj.
moveMC
[mm
].
_y;
} drawObj.
x1 +=
_xmouse - drawObj.
xx; drawObj.
y1 +=
_ymouse - drawObj.
yy; drawObj.
x2 +=
_xmouse - drawObj.
xx; drawObj.
y2 +=
_ymouse - drawObj.
yy; drawObj.
xx =
_xmouse; drawObj.
yy =
_ymouse;
}
else
{ drawObj.
x2 =
_xmouse; drawObj.
y2 =
_ymouse;
} drawRect
(
);
}
else
{
}
};
// 手型图标
var handObj:
Object =
new
Object
(
); handObj.
onMouseMove =
function
(
):
Void
{ hand_mc.
_x =
_xmouse; hand_mc.
_y =
_ymouse;
}; hand_btn.
onRelease =
function
(
):
Void
{ RegMouse
(_cursorObj.
drag
);
};
// 鼠标监听器注册管理函数
function RegMouse
(regID:
Number
):
Void
{
if
(regID <
0 || regID >
4
)
{
return;
}
// 清除上次的
switch
(_cursorFlag
)
{
case _cursorObj.
def :
Mouse.
hide
(
);
break;
case _cursorObj.
drag : hand_mc.
_x = hand_mc.
_y = -
500;
Mouse.
removeListener
(handObj
);
break;
case _cursorObj.
select : dmcursor_mc.
_x = dmcursor_mc.
_y = -
500; select_mc.
gotoAndStop
(
1
); line_mc.
clear
(
);
Mouse.
removeListener
(drawObj
);
Mouse.
removeListener
(dmselect
);
break;
case _cursorObj.
tong : dmtong_mc.
_x = dmtong_mc.
_y = -
500; tong_mc.
gotoAndStop
(
1
);
Mouse.
removeListener
(dmtong
);
break;
case _cursorObj.
pip : dmpip_mc.
_x = dmpip_mc.
_y = -
500; pip_mc.
gotoAndStop
(
1
);
Mouse.
removeListener
(dmpip
);
break;
}
if
(_cursorFlag == regID
)
{ _cursorFlag =
0;
Mouse.
show
(
);
return;
}
// 注册新的监听器
switch
(regID
)
{
case _cursorObj.
def :
Mouse.
show
(
);
break;
case _cursorObj.
drag : hand_mc.
_x =
_xmouse; hand_mc.
_y =
_ymouse;
Mouse.
addListener
(handObj
);
break;
case _cursorObj.
select : dmcursor_mc.
_x =
_xmouse; dmcursor_mc.
_y =
_ymouse;
Mouse.
addListener
(drawObj
);
Mouse.
addListener
(dmselect
);
break;
case _cursorObj.
tong : dmtong_mc.
_x =
_xmouse; dmtong_mc.
_y =
_ymouse;
Mouse.
addListener
(dmtong
);
break;
case _cursorObj.
pip : dmpip_mc.
_x =
_xmouse; dmpip_mc.
_y =
_ymouse;
Mouse.
addListener
(dmpip
);
break;
} _cursorFlag = regID;
}