public static void endFileTmp(PngWriter png)
{
ImageLine imline = new ImageLine(png.ImgInfo);
for (int i = 0; i < png.ImgInfo.Rows; i++)
png.WriteRow(imline, i);
png.End();
}
public static void fatalError(String s, PngReader png1, PngWriter png2)
{
try {
png1.End();
png2.End();
} catch (Exception ) {
}
throw new PngjException(s);
}
private void btnSave_Click( object sender, RoutedEventArgs e )
{
CommonSaveFileDialog saveDialog = new CommonSaveFileDialog();
saveDialog.ShowPlacesList = true;
saveDialog.AddToMostRecentlyUsedList = true;
saveDialog.Filters.Add( new CommonFileDialogFilter( "PNG images", "*.png" ) );
saveDialog.DefaultFileName = DateTime.Now.ToString( "yyyyMMddhhmmss" ) + ".png";
if ( saveDialog.ShowDialog( this ) == CommonFileDialogResult.Ok ) {
using ( FileStream newFileStream = new FileStream( saveDialog.FileName, FileMode.OpenOrCreate, FileAccess.ReadWrite ),
oldFileStream = new FileStream( soureFilePath, FileMode.Open, FileAccess.Read ) ) {
string semanticInfo = @"
sky: blue sky.
heart: cloud heart.
Meaning: It means love|爱|❤.
";
////// Reference: http://code.google.com/p/pngcs/wiki/Overview
// get decoder
pngReader = new PngReader( oldFileStream );
// create encoder
pngWriter = new PngWriter( newFileStream, pngReader.ImgInfo );
// copy
int chunkBehav = Hjg.Pngcs.Chunks.ChunkCopyBehaviour.COPY_ALL; // tell to copy all 'safe' chunks
pngWriter.CopyChunksFirst( pngReader, chunkBehav ); // copy some metadata from reader
int channels = pngReader.ImgInfo.Channels;
if ( channels < 3 )
throw new Exception( "This example works only with RGB/RGBA images" );
for ( int row = 0; row < pngReader.ImgInfo.Rows; row++ ) {
ImageLine l1 = pngReader.ReadRow( row ); // format: RGBRGB... or RGBARGBA...
pngWriter.WriteRow( l1, row );
}
pngWriter.CopyChunksLast( pngReader, chunkBehav ); // metadata after the image pixels? can happen
// app info
pngWriter.GetMetadata().SetText( Hjg.Pngcs.Chunks.PngChunkTextVar.KEY_Software, "Semantic Image" );
// semantic info
Hjg.Pngcs.Chunks.PngChunk chunk = pngWriter.GetMetadata().SetText( Key_SemanticInfo, semanticInfo, false, false );
chunk.Priority = true;
pngWriter.End(); // dont forget this
pngReader.End();
oldFileStream.Close();
newFileStream.Close();
}
}
}
public override void Work()
{
MapCanvasTile[,] tiles = canvas.Images;
int rowCount = tiles.GetLength(1);
int colCount = tiles.GetLength(0);
ImageInfo info = new ImageInfo((colCount * canvas.MaxTiles) * 256, (rowCount * canvas.MaxTiles) * 256, 8, false);
PngWriter writer = new PngWriter(File.OpenWrite(fileName), info);
int lineOfs = 0;
int tileLines = 256 * canvas.MaxTiles;
int canvasCols = (colCount * canvas.MaxTiles) * 256;
for (int tileY = 0; tileY < rowCount; tileY++)
{
Color[,] rows = new Color[tileLines, canvasCols];
for (int tileX = 0; tileX < colCount; tileX++)
{
List<MapCanvasTile.SubTile> subTiles = tiles[tileX, tileY].tiles;
subTiles.Sort((a, b) => a.CompareTo(b));
for (int subTileY = 0; subTileY < canvas.MaxTiles; subTileY++)
{
for (int subTileX = 0; subTileX < canvas.MaxTiles; subTileX++)
{
int subTileIndex = (subTileX * canvas.MaxTiles) + subTileY;
if (subTileIndex < subTiles.Count)
{
using (BlpFile blp = new BlpFile(File.OpenRead(subTiles[subTileIndex].File)))
using (Bitmap bmp = blp.GetBitmap(0))
{
for (int pY = 0; pY < 256; pY++)
for (int pX = 0; pX < 256; pX++)
rows[pY + (subTileY * 256), pX + (subTileX * 256) + (tileX * (256 * canvas.MaxTiles))] = bmp.GetPixel(pX, pY);
}
}
}
}
}
for (int iLine = 0; iLine < tileLines; iLine++)
{
byte[] compRow = new byte[canvasCols * 3];
for (int iCol = 0; iCol < canvasCols; iCol++)
{
Color color = rows[iLine, iCol];
int ofs = 3 * iCol;
compRow[ofs] = color.R;
compRow[ofs + 1] = color.G;
compRow[ofs + 2] = color.B;
}
writer.WriteRowByte(compRow, lineOfs);
lineOfs++;
}
}
writer.End();
EventManager.Trigger_MapExportDone2D();
}