End() public method

Finalizes the image creation and closes the file stream.
This MUST be called after writing the lines.
public End ( ) : void
return void
Esempio n. 1
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 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();
 }
Esempio n. 2
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 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();
            }
              }
        }
Esempio n. 4
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        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();
        }