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|
unit UTrackbar;
interface
uses Flash8;
type
TTrackcur=class(MovieClip)
xmouse,trackmin,trackmax:number;
xcur,ycur:Integer;
downcur:Boolean;
Procedure circle(Cx,Cy,Radius:number);
constructor Create(AOWNER:Movieclip;trmin,trmax:number);
procedure onPress;
procedure onEnterFrame;
procedure onMouseUp;
end;
TTrackbar=class(MovieClip)
w,h,position:number;
cur: TTrackcur;
procedure Roundrect(x,y,w,h,radius:number);
procedure DrawTrackbar(Width,Height:number);
constructor Create(AOWNER:Movieclip;FWidth,trmin,trmax,posi:number);
end;
implementation
constructor TTrackcur.create(AOWNER:Movieclip;trmin,trmax:number);
var matrix: Flash8.Matrix;
begin
inherited Create(AOWNER,'cur',AOWNER.getNextHighestDepth);
matrix := Flash8.Matrix.Create();
matrix.createBox(1,1,0,10,14);
linestyle(1,$87B6B7);
beginGradientFill('radial',[$008080,clwhite],[100,100],[0,14],matrix);
Circle(6,6,15);
downcur:=false;
xmouse:=0;
trackmin:=trmin;
trackmax:=trmax;
end;
constructor TTrackbar.Create(AOWNER:Movieclip;Fwidth,trmin,trmax,posi:number);
begin
inherited Create(AOWNER,'trackbar',AOWNER.getNextHighestDepth);
w:=FWidth;
DrawTrackBar(w,12);
cur:=TTrackcur.Create(self,trmin,trmax);
cur._x:=(posi-trmin)*w/(trmax-trmin);
cur._y:=0;
position:=posi;
end;
procedure TTrackbar.DrawTrackbar(Width, Height: number);
var matrix: Flash8.Matrix;
begin
matrix := Flash8.Matrix.Create();
matrix.createGradientBox(width, height, Math.PI/2, 0, 0);
beginGradientFill('linear',
[$deedf6,$c4e5f6,$98d1ef,$66afd7],
[100,100,100,100],
[8,64,127,255],
matrix
);
linestyle(2,$98d1ef);
RoundRect(0,0,width,height,height/2);
end;
procedure TTrackcur.onPress;
begin
downcur:=true;
xmouse:=_xmouse;
end;
procedure TTrackcur.onEnterFrame;
var tr:TTrackbar;
begin
tr:= TTrackbar(_parent);
if downcur then
begin
_x:= _x + _xmouse -xmouse;
if _x<0 then _x:=0;
if _x>tr.w then _x:=tr.w;
tr.position:=_x*(trackmax-trackmin)/tr.w+trackmin;
end;
end;
procedure TTrackcur.onMouseUp;
begin
downcur:=false;
end;
procedure TTrackbar.Roundrect(x,y,w,h,radius:number);
var
ra,b:number;
begin
ra := x + w;
b := y + h;
moveTo(x+radius, y);
lineTo(ra-radius, y);
CurveTo(ra,y, ra, y+radius);
lineTo(ra, y+h-radius);
CurveTo(ra, b, ra-radius, b);
lineTo(x+radius, b);
CurveTo(x, b,x, b-radius);
lineTo(x, y+radius);
CurveTo(x, y, x+radius,y);
end;
Procedure TTrackcur.circle(Cx,Cy,Radius:number);
var a,b,R: number;
begin
R:=Radius;
a:= R * 0.414213562;
b:= R * 0.707106781;
moveTo(Cx+R,Cy);
CurveTo(Cx+ R, Cy+-a, Cx+b,Cy -b);
CurveTo(Cx+ a,Cy-R,Cx,Cy -r);
CurveTo(Cx-a,Cy -R,Cx-b,Cy -b);
CurveTo(Cx-R, Cy-a,Cx-R,Cy);
CurveTo(Cx-R,Cy+a,Cx-b,Cy+b);
CurveTo(Cx-a,Cy +R,Cx,Cy+r);
CurveTo(Cx+a,Cy +R,Cx+b,Cy+b);
CurveTo(Cx+R,Cy+a,Cx+R,Cy);
end;
end. |
