//反转GIF动画
private void buttonReverseGIF_Click(object sender, EventArgs e)
{
decimal decDelayTimes = numericUpDown_DelayTimes.Value;
string strFileName = this.textBox_SelectGIFPath.Text;
if (strFileName.Length <= 0)
{
MessageBox.Show("未选择要反序的文件!请选择【选择GIF文件】");
return;
}
/* extract Gif */
string outputPath = Path.GetTempPath();
List <string> strList = GetFrames(strFileName, outputPath);
GifDecoder gifDecoder = new GifDecoder();
gifDecoder.Read(strFileName);
// int count = gifDecoder.GetFrameCount();
// List<string> strList = new List<string>();
// for (int i = 0; i < count; i++)
// {
// Image frame = gifDecoder.GetFrame(i); // frame i
// strList[i] = outputPath + Guid.NewGuid().ToString() + ".png";
// frame.Save(strList[i], ImageFormat.Png);
// frame.Dispose();
// }
strList.Reverse();
String outputFilePath = strFileName + ".gif";
AnimatedGifEncoder age = new AnimatedGifEncoder();
age.Start(outputFilePath);
age.SetDelay(gifDecoder.GetDelay(0));
//-1:no repeat,0:always repeat
age.SetRepeat(0);
for (int i = 0; i < strList.Count; i++)
{
age.AddFrame(Image.FromFile(strList[i]));
}
age.Finish();
MessageBox.Show("反序完成,文件保存在" + outputFilePath + "目录!");
}
public void ImportGIF(string file)
{
Action <object, DoWorkEventArgs> work = (object sender, DoWorkEventArgs e) =>
{
GifDecoder decoder = new GifDecoder();
decoder.Read(file, null);
e.Result = decoder;
};
Action <object, RunWorkerCompletedEventArgs> completed = (object sender, RunWorkerCompletedEventArgs e) =>
{
GifDecoder decoder = e.Result as GifDecoder;
string s = Path.GetFileNameWithoutExtension(file);
PAT0Node p = CreateResource <PAT0Node>(s);
p._loop = true;
p.CreateEntry();
PAT0TextureNode textureNode = p.Children[0].Children[0] as PAT0TextureNode;
PAT0TextureEntryNode entry = textureNode.Children[0] as PAT0TextureEntryNode;
//Get the number of images in the file
int frames = decoder.GetFrameCount();
//The framecount will be created by adding up each image delay.
float frameCount = 0;
bool resized = false;
int w = 0, h = 0;
Action <int, int> onResized = (newW, newH) =>
{
if (resized != true)
{
w = newW;
h = newH;
resized = true;
}
};
using (TextureConverterDialog dlg = new TextureConverterDialog())
{
using (ProgressWindow progress = new ProgressWindow(RootNode._mainForm, "GIF to PAT0 converter",
"Converting, please wait...", true))
{
Bitmap prev = null;
progress.Begin(0, frames, 0);
for (int i = 0; i < frames; i++, entry = new PAT0TextureEntryNode())
{
if (progress.Cancelled)
{
break;
}
string name = s + "." + i;
dlg.ImageSource = name + ".";
using (Bitmap img = (Bitmap)decoder.GetFrame(i))
{
if (i == 0)
{
dlg.LoadImages(img.Copy());
dlg.Resized += onResized;
if (dlg.ShowDialog(null, this) != DialogResult.OK)
{
return;
}
textureNode._hasTex = dlg.TextureData != null;
textureNode._hasPlt = dlg.PaletteData != null;
prev = img.Copy();
}
else
{
//Draw the current image over the previous
//This is because some GIFs use pixels of the previous frame
//in order to compress the overall image data
using (Graphics graphics = Graphics.FromImage(prev))
{
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.CompositingMode = CompositingMode.SourceOver;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.DrawImage(img, 0, 0, prev.Width, prev.Height);
}
dlg.LoadImages(prev.Copy());
if (resized)
{
dlg.ResizeImage(w, h);
}
else
{
dlg.UpdatePreview();
}
dlg.EncodeSource();
textureNode.AddChild(entry);
}
}
entry._frame = (float)Math.Round(frameCount, 2);
frameCount += decoder.GetDelay(i) / 1000.0f * 60.0f;
if (textureNode._hasTex)
{
entry.Texture = name;
}
if (textureNode._hasPlt)
{
entry.Palette = name;
}
progress.Update(progress.CurrentValue + 1);
}
progress.Finish();
if (prev != null)
{
prev.Dispose();
}
}
}
p._numFrames = (ushort)(frameCount + 0.5f);
};
using (BackgroundWorker b = new BackgroundWorker())
{
b.DoWork += new DoWorkEventHandler(work);
b.RunWorkerCompleted += new RunWorkerCompletedEventHandler(completed);
b.RunWorkerAsync();
}
}
private static void GenerateThumbGif(GifDecoder decoder, string thumbPath, Size thumbSize)
{
GifEncoder encoder = new GifEncoder();
encoder.Start(thumbPath);
encoder.SetSize(thumbSize.Width, thumbSize.Height);
encoder.SetRepeat(decoder.GetLoopCount());
Bitmap bitmap = new Bitmap(thumbSize.Width, thumbSize.Height);
for (int i = 0; i < decoder.GetFrameCount(); i++)
{
encoder.SetDelay(decoder.GetDelay(i));
int dispose = decoder.GetDispose(i);
Color tranColor = decoder.GetTransparent(i);
if (tranColor.IsEmpty == false)
{
encoder.SetTransparent(decoder.GetTransparent(i));
}
if (dispose != 1)
{
bitmap.Dispose();
bitmap = new Bitmap(thumbSize.Width, thumbSize.Height);
}
using (Graphics g = Graphics.FromImage(bitmap))
{
if (dispose == 2)
{
g.FillRectangle(new SolidBrush(tranColor), 0, 0, thumbSize.Width, thumbSize.Height);
}
//else if(dispose == 5)
//{
// g.FillRectangle(new SolidBrush(Color.Black), 0, 0, thumbSize.Width, thumbSize.Height);
//}
g.DrawImage(decoder.GetFrame(i), 0, 0, thumbSize.Width, thumbSize.Height);
}
encoder.AddFrame(bitmap);
}
bitmap.Dispose();
//using (Bitmap bitmap = new Bitmap(thumbSize.Width, thumbSize.Height))
//{
// for (int i = 0; i < decoder.GetFrameCount(); i++)
// {
// encoder.SetDelay(decoder.GetDelay(i));
// Color tran = decoder.GetTransparent(i);
// using (Graphics g = Graphics.FromImage(bitmap))
// {
// if (tran != Color.Empty)
// {
// g.FillRectangle(new SolidBrush(tran), 0, 0, thumbSize.Width, thumbSize.Height);
// }
// else
// {
// }
// g.DrawImage(decoder.GetFrame(i), 0, 0, thumbSize.Width, thumbSize.Height);
// }
// encoder.AddFrame(bitmap);
// }
//}
encoder.Finish();
}
