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Subject: 不用Gif控件,尽量实现动画(大家有没有更好的办法) [Print This Page]

Author: guoqingaa Time: 2007-11-17 20:38 Subject: 不用Gif控件,尽量实现动画(大家有没有更好的办法)

翻了翻书,想写个小动画,让自己的程序更生动,贴点给大家看看,看看大家有没有更好的办法,我个人觉得暂时理想吧
核心代码
//imgSource 保存16张连续图(自己用画图加工的),imgRuning 使用Canvas.CopyRect()的方法显示
begin
  imgRuning.Canvas.CopyRect(Rect(0,0,220,64), imgSource.Canvas, Rect(Tag*220, 0, Tag*220+220, 64));
  if tag=16 then {动作状态编号从零开始，一共有16个状态}
  tag := 0
  else
  tag := tag+1; {用表单的tag属性表示动作状态，初始值为0}
  imgRuning.refresh; {刷新图像}
end;

去除抖动

  imgRuning.parent.doublebuffered := true;

效果

顺便贴个图,跟个附加...这样发稿可以吧...

Attachment: [例子] demo.rar (2007-11-17 20:38, 201.81 K) / Download count 428
http://bbs.cnpack.org/attachment.php?aid=358

Author: skyjacker Time: 2007-11-20 10:30

动画效果不错.

为了方便懒得下载的弟兄们, 我把你的代码贴出来吧

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls;

type
  TForm1 = class(TForm)
Timer1: TTimer;
imgSource: TImage;
btnStart: TButton;
imgRuning: TImage;
imgStop: TImage;
procedure Timer1Timer(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure btnStartClick(Sender: TObject);
  private
{ Private declarations }
  public
{ Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Timer1Timer(Sender: TObject);
begin

  imgRuning.Canvas.CopyRect(Rect(0,0,220,64), imgSource.Canvas, Rect(Tag*220, 0, Tag*220+220, 64));

  if tag=16 then {动作状态编号从零开始，一共有16个状态}
  tag := 0
  else
  tag := tag+1; {用表单的tag属性表示动作状态，初始值为0}

  imgRuning.refresh; {刷新图像}
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  imgRuning.parent.doublebuffered := true;
//  就不闪了那是刷屏率,
end;

procedure TForm1.btnStartClick(Sender: TObject);
begin
  if Timer1.Enabled then
begin
   Timer1.Enabled := False;
   imgStop.Visible       := True;
   imgRuning.Visible  := False;
   btnStart.Caption := '继续...';
end
  else
begin
   Timer1.Enabled := True;
   imgRuning.Visible  := True;
   imgStop.Visible := False;
   btnStart.Caption := '暂  停';
end;
end;

end.

Author: skyjacker Time: 2007-11-20 10:59

procedure TForm1.Timer1Timer(Sender: TObject);
var
  Delta: Integer;
begin
  // Rect(Tag*220, 0, Tag*220+220, 64)); 动画
  // Rect(Tag*(220 div 16), 0, 220, 64) 拉伸效果
  // Rect(Tag*13, 0, Tag*13+220, 64) 滚动效果

  Delta := 230;
  imgRuning.Canvas.CopyRect(Rect(0,0,220,64), imgSource.Canvas, Rect(Tag*Delta, 0, Tag*Delta+220, 64));

想所想即所得真不容易啊

Author: Passion Time: 2007-11-20 12:36

这种法子用来播放图片倒是可以，但图片岂不还得一帧一帧的去做？准备素材就比较麻烦。

Author: kendling Time: 2007-11-21 16:16

对哇，如果换作是gif图片的话，你还得分解出来呢。

Author: zzzl Time: 2007-11-21 22:24

这方法我也用过

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