Examples of TextGrid

org.stathissideris.ascii2image.text.TextGrid
@author Efstathios Sideris

Examples of org.stathissideris.ascii2image.text.TextGrid

      new HTMLConverter().convertHTMLFile(filename, toFilename, "ditaa_diagram", "images", options);
      System.exit(0);
      
    } else { //simple mode
      
      TextGrid grid = new TextGrid();
      if(options.processingOptions.getCustomShapes() != null){
        grid.addToMarkupTags(options.processingOptions.getCustomShapes().keySet());
      }


      // "-" means stdin / stdout
      String fromFilename = args[0];
      boolean stdIn = "-".equals(fromFilename);


      String toFilename;
      boolean stdOut;


      boolean overwrite = false;
      if(options.processingOptions.overwriteFiles()) overwrite = true;
      
      if(args.length == 1){
        if (stdIn) { // if using stdin and no output specified, use stdout
          stdOut = true;
          toFilename = "-";
        } else {
          toFilename = FileUtils.makeTargetPathname(fromFilename, "png", overwrite);
          stdOut = false;
        }
      } else {
        toFilename = args[1];
        stdOut = "-".equals(toFilename);
      }


      if (!stdOut) {
        /////// print options before running
        printRunInfo(cmdLine);
        System.out.println("Reading "+ (stdIn ? "standard input" : "file: " + fromFilename));
      }


      try {
        if(!grid.loadFrom(fromFilename, options.processingOptions)){
          System.err.println("Cannot open file "+fromFilename+" for reading");
        }
      } catch (UnsupportedEncodingException e1){
        System.err.println("Error: "+e1.getMessage());
        System.exit(1);
      } catch (FileNotFoundException e1) {
        System.err.println("Error: File "+fromFilename+" does not exist");
        System.exit(1);
      } catch (IOException e1) {
        System.err.println("Error: Cannot open file "+fromFilename+" for reading");
        System.exit(1);
      }
      
      if(options.processingOptions.printDebugOutput()){
        if (!stdOut) System.out.println("Using grid:");
        grid.printDebug();
      }
      
      Diagram diagram = new Diagram(grid, options);
      if (!stdOut) System.out.println("Rendering to file: "+toFilename);

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Examples of org.stathissideris.ascii2image.text.TextGrid

      long a = java.lang.System.currentTimeMillis();
      
      for(int i = 0; i < iterations; i++) {
        System.out.println("iteration "+i);
        
        TextGrid grid = new TextGrid();
        grid.loadFrom(inputFilename);
        new Diagram(grid, options);
      }
      
      long b = java.lang.System.currentTimeMillis();

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Examples of org.stathissideris.ascii2image.text.TextGrid

   * @param text the ascii art text.
   * @param outputFile the file name of the image that is generated.
   */
  private void generateImage(String text, File outputFile) {
    ConversionOptions options = new ConversionOptions();
    TextGrid textGrid = new TextGrid();
    try {
      if(!textGrid.initialiseWithText(text, null)) {
        error("Cannot initialize text grid");
      }
    } catch (UnsupportedEncodingException e1) {
      error("Cannot initialize text grid");
    }

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Examples of org.stathissideris.ascii2image.text.TextGrid

        System.out.println("Error: Cannot overwrite file "+URL+", file already exists." +
          " Use the --overwrite option if you would like to allow file overwrite.");
        continue;
      }
  
      TextGrid grid = new TextGrid();
      grid.addToMarkupTags(options.processingOptions.getCustomShapes().keySet());


      try {
        grid.initialiseWithText(text, options.processingOptions);
      } catch (UnsupportedEncodingException e1) {
        System.err.println("Error: "+e1.getMessage());
        System.exit(1);
      }

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Examples of org.stathissideris.ascii2image.text.TextGrid

    this.cellHeight = options.renderingOptions.getCellHeight();
    
    width = grid.getWidth() * cellWidth;
    height = grid.getHeight() * cellHeight;
    
    TextGrid workGrid = new TextGrid(grid);
    workGrid.replaceTypeOnLine();
    workGrid.replacePointMarkersOnLine();
    if(DEBUG) workGrid.printDebug();
    
    int width = grid.getWidth();
    int height = grid.getHeight();


  
    //split distinct shapes using AbstractionGrid 
    AbstractionGrid temp = new AbstractionGrid(workGrid, workGrid.getAllBoundaries());
    ArrayList<CellSet> boundarySetsStep1 = temp.getDistinctShapes();
    
    if(DEBUG){
      System.out.println("******* Distinct shapes found using AbstractionGrid *******");
      Iterator<CellSet> dit = boundarySetsStep1.iterator();
      while (dit.hasNext()) {
        CellSet set = dit.next();
        set.printAsGrid();
      }
      System.out.println("******* Same set of shapes after processing them by filling *******");
    }
    
    
    //Find all the boundaries by using the special version of the filling method
    //(fills in a different buffer than the buffer it reads from)
    ArrayList<CellSet> boundarySetsStep2 = new ArrayList<CellSet>();
    for(CellSet set : boundarySetsStep1) {      
      //the fill buffer keeps track of which cells have been
      //filled already
      TextGrid fillBuffer = new TextGrid(width * 3, height * 3);
      
      for(int yi = 0; yi < height * 3; yi++){
        for(int xi = 0; xi < width * 3; xi++){
          if(fillBuffer.isBlank(xi, yi)){
            
            TextGrid copyGrid = new AbstractionGrid(workGrid, set).getCopyOfInternalBuffer();


            CellSet boundaries =
              copyGrid
              .findBoundariesExpandingFrom(copyGrid.new Cell(xi, yi));
            if(boundaries.size() == 0) continue; //i'm not sure why these occur
            boundarySetsStep2.add(boundaries.makeScaledOneThirdEquivalent());
          
            copyGrid = new AbstractionGrid(workGrid, set).getCopyOfInternalBuffer();
            CellSet filled =
              copyGrid
              .fillContinuousArea(copyGrid.new Cell(xi, yi), '*');
            fillBuffer.fillCellsWith(filled, '*');
            fillBuffer.fillCellsWith(boundaries, '-');
            
            if(DEBUG){
              //System.out.println("Fill buffer:");
              //fillBuffer.printDebug();
              boundaries.makeScaledOneThirdEquivalent().printAsGrid();
              System.out.println("-----------------------------------");
            }
            
          }
        }
      }
    }


    if (DEBUG)
      System.out.println("******* Removed duplicates *******");


    boundarySetsStep2 = CellSet.removeDuplicateSets(boundarySetsStep2);


    if(DEBUG){
      Iterator<CellSet> dit = boundarySetsStep2.iterator();
      while (dit.hasNext()) {
        CellSet set = dit.next();
        set.printAsGrid();
      }
    }


    int originalSize = boundarySetsStep2.size(); 
    boundarySetsStep2 = CellSet.removeDuplicateSets(boundarySetsStep2);
    if(DEBUG) {
      System.out.println(
        "******* Removed duplicates: there were "
        +originalSize
        +" shapes and now there are "
        +boundarySetsStep2.size());
    } 
    


    //split boundaries to open, closed and mixed
    
    if (DEBUG)
      System.out.println("******* First evaluation of openess *******");
    
    ArrayList<CellSet> open = new ArrayList<CellSet>();
    ArrayList<CellSet> closed = new ArrayList<CellSet>();
    ArrayList<CellSet> mixed = new ArrayList<CellSet>();
    
    Iterator<CellSet> sets = boundarySetsStep2.iterator();
    while(sets.hasNext()){
      CellSet set = (CellSet) sets.next();
      int type = set.getType(workGrid);
      if(type == CellSet.TYPE_CLOSED) closed.add(set);
      else if(type == CellSet.TYPE_OPEN) open.add(set);
      else if(type == CellSet.TYPE_MIXED) mixed.add(set);
      if(DEBUG){
        if(type == CellSet.TYPE_CLOSED) System.out.println("Closed boundaries:");
        else if(type == CellSet.TYPE_OPEN) System.out.println("Open boundaries:");
        else if(type == CellSet.TYPE_MIXED) System.out.println("Mixed boundaries:");
        set.printAsGrid();
      }
    }
    
    boolean hadToEliminateMixed = false;
    
    if(mixed.size() > 0 && closed.size() > 0) {
              // mixed shapes can be eliminated by
              // subtracting all the closed shapes from them 
      if (DEBUG)
        System.out.println("******* Eliminating mixed shapes (basic algorithm) *******");
    
      hadToEliminateMixed = true;
      
      //subtract from each of the mixed sets all the closed sets
      sets = mixed.iterator();
      while(sets.hasNext()){
        CellSet set = (CellSet) sets.next();
        Iterator<CellSet> closedSets = closed.iterator();
        while(closedSets.hasNext()){
          CellSet closedSet = closedSets.next();
          set.subtractSet(closedSet);
        }
        // this is necessary because some mixed sets produce
        // several distinct open sets after you subtract the
        // closed sets from them
        if(set.getType(workGrid) == CellSet.TYPE_OPEN) {
          boundarySetsStep2.remove(set);
          boundarySetsStep2.addAll(set.breakIntoDistinctBoundaries(workGrid));
        }
      }


    } else if(mixed.size() > 0 && closed.size() == 0) {
              // no closed shape exists, will have to
              // handle mixed shape on its own 
      // an example of this case is the following:
      // +-----+
      // |  A  |C                 B
      // +  ---+-------------------
      // |     |
      // +-----+


      hadToEliminateMixed = true;


      if (DEBUG)
        System.out.println("******* Eliminating mixed shapes (advanced algorithm for truly mixed shapes) *******");
        
      sets = mixed.iterator();
      while(sets.hasNext()){
        CellSet set = (CellSet) sets.next();
        boundarySetsStep2.remove(set);
        boundarySetsStep2.addAll(set.breakTrulyMixedBoundaries(workGrid));
      }


    } else {
      if (DEBUG)
        System.out.println("No mixed shapes found. Skipped mixed shape elimination step");
    }
    
    
    if(hadToEliminateMixed){
      if (DEBUG)
        System.out.println("******* Second evaluation of openess *******");
    
      //split boundaries again to open, closed and mixed
      open = new ArrayList<CellSet>();
      closed = new ArrayList<CellSet>();
      mixed = new ArrayList<CellSet>();
    
      sets = boundarySetsStep2.iterator();
      while(sets.hasNext()){
        CellSet set = (CellSet) sets.next();
        int type = set.getType(workGrid);
        if(type == CellSet.TYPE_CLOSED) closed.add(set);
        else if(type == CellSet.TYPE_OPEN) open.add(set);
        else if(type == CellSet.TYPE_MIXED) mixed.add(set);
        if(DEBUG){
          if(type == CellSet.TYPE_CLOSED) System.out.println("Closed boundaries:");
          else if(type == CellSet.TYPE_OPEN) System.out.println("Open boundaries:");
          else if(type == CellSet.TYPE_MIXED) System.out.println("Mixed boundaries:");
          set.printAsGrid();
        }
      }
    }


    boolean removedAnyObsolete = removeObsoleteShapes(workGrid, closed);
    
    boolean allCornersRound = false;
    if(options.processingOptions.areAllCornersRound()) allCornersRound = true;
    
    //make shapes from the boundary sets
    //make closed shapes
    if(DEBUG_MAKE_SHAPES) {
      System.out.println("***** MAKING SHAPES FROM BOUNDARY SETS *****");
      System.out.println("***** CLOSED: *****");
    }
    
    ArrayList<DiagramComponent> closedShapes = new ArrayList<DiagramComponent>();
    sets = closed.iterator();
    while(sets.hasNext()){
      CellSet set = (CellSet) sets.next();
      
      if(DEBUG_MAKE_SHAPES) {
        set.printAsGrid();
      }
      
      DiagramComponent shape = DiagramComponent.createClosedFromBoundaryCells(workGrid, set, cellWidth, cellHeight, allCornersRound); 
      if(shape != null){
        if(shape instanceof DiagramShape){
          addToShapes((DiagramShape) shape);
          closedShapes.add(shape);
        } else if(shape instanceof CompositeDiagramShape)
          addToCompositeShapes((CompositeDiagramShape) shape);
      }
    }


    if(options.processingOptions.performSeparationOfCommonEdges())
      separateCommonEdges(closedShapes);


    //make open shapes
    sets = open.iterator();
    while(sets.hasNext()){
      CellSet set = (CellSet) sets.next();
      if(set.size() == 1){ //single cell "shape"
        TextGrid.Cell cell = (TextGrid.Cell) set.getFirst();
        if(!grid.cellContainsDashedLineChar(cell)) { 
          DiagramShape shape = DiagramShape.createSmallLine(workGrid, cell, cellWidth, cellHeight); 
          if(shape != null) {
            addToShapes(shape); 
            shape.connectEndsToAnchors(workGrid, this);
          }
        }
      } else { //normal shape
                if (DEBUG)
                    System.out.println(set.getCellsAsString());        
        
        DiagramComponent shape =
          CompositeDiagramShape
            .createOpenFromBoundaryCells(
                workGrid, set, cellWidth, cellHeight, allCornersRound);


        if(shape != null){
          if(shape instanceof CompositeDiagramShape){
            addToCompositeShapes((CompositeDiagramShape) shape);
            ((CompositeDiagramShape) shape).connectEndsToAnchors(workGrid, this);
          } else if(shape instanceof DiagramShape) {
            addToShapes((DiagramShape) shape);
            ((DiagramShape) shape).connectEndsToAnchors(workGrid, this);
            ((DiagramShape) shape).moveEndsToCellEdges(grid, this);
          }
        }
          
      }
    }


    //assign color codes to shapes
    //TODO: text on line should not change its color
    
    Iterator<CellColorPair> cellColorPairs = grid.findColorCodes().iterator();
    while(cellColorPairs.hasNext()){
      TextGrid.CellColorPair pair =
        (TextGrid.CellColorPair) cellColorPairs.next();
      
      ShapePoint point =
        new ShapePoint(getCellMidX(pair.cell), getCellMidY(pair.cell));
      DiagramShape containingShape = findSmallestShapeContaining(point);
      
      if(containingShape != null)
        containingShape.setFillColor(pair.color);
    }


    //assign markup to shapes
    Iterator<CellTagPair> cellTagPairs = grid.findMarkupTags().iterator();
    while(cellTagPairs.hasNext()){
      TextGrid.CellTagPair pair =
        (TextGrid.CellTagPair) cellTagPairs.next();
      
      ShapePoint point =
        new ShapePoint(getCellMidX(pair.cell), getCellMidY(pair.cell));
      
      DiagramShape containingShape = findSmallestShapeContaining(point);
      
      //this tag is not within a shape, skip
      if(containingShape == null) continue;
      
      //TODO: the code below could be a lot more concise
      if(pair.tag.equals("d")){
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes("d");
        if(def == null)
          containingShape.setType(DiagramShape.TYPE_DOCUMENT);
        else {
          containingShape.setType(DiagramShape.TYPE_CUSTOM);
          containingShape.setDefinition(def);
        }
      } else if(pair.tag.equals("s")){
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes("s");
        if(def == null)
          containingShape.setType(DiagramShape.TYPE_STORAGE);
        else {
          containingShape.setType(DiagramShape.TYPE_CUSTOM);
          containingShape.setDefinition(def);
        }
      } else if(pair.tag.equals("io")){
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes("io");
        if(def == null)
          containingShape.setType(DiagramShape.TYPE_IO);
        else {
          containingShape.setType(DiagramShape.TYPE_CUSTOM);
          containingShape.setDefinition(def);
        }
      } else if(pair.tag.equals("c")){
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes("c");
        if(def == null)
          containingShape.setType(DiagramShape.TYPE_DECISION);
        else {
          containingShape.setType(DiagramShape.TYPE_CUSTOM);
          containingShape.setDefinition(def);
        }
      } else if(pair.tag.equals("mo")){
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes("mo");
        if(def == null)
          containingShape.setType(DiagramShape.TYPE_MANUAL_OPERATION);
        else {
          containingShape.setType(DiagramShape.TYPE_CUSTOM);
          containingShape.setDefinition(def);
        }
      } else if(pair.tag.equals("tr")){
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes("tr");
        if(def == null)
          containingShape.setType(DiagramShape.TYPE_TRAPEZOID);
        else {
          containingShape.setType(DiagramShape.TYPE_CUSTOM);
          containingShape.setDefinition(def);
        }
      } else if(pair.tag.equals("o")){
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes("o");
        if(def == null)
          containingShape.setType(DiagramShape.TYPE_ELLIPSE);
        else {
          containingShape.setType(DiagramShape.TYPE_CUSTOM);
          containingShape.setDefinition(def);
        }
      } else {
        CustomShapeDefinition def =
          options.processingOptions.getFromCustomShapes(pair.tag);
        containingShape.setType(DiagramShape.TYPE_CUSTOM);
        containingShape.setDefinition(def);            
      }
    }
    
    //make arrowheads
    Iterator<Cell> arrowheadCells = workGrid.findArrowheads().iterator();
    while(arrowheadCells.hasNext()){
      TextGrid.Cell cell = arrowheadCells.next();
      DiagramShape arrowhead = DiagramShape.createArrowhead(workGrid, cell, cellWidth, cellHeight);
      if(arrowhead != null) addToShapes(arrowhead);
      else System.err.println("Could not create arrowhead shape. Unexpected error.");
    }
    
    //make point markers
    Iterator<TextGrid.Cell> markersIt = grid.getPointMarkersOnLine().iterator();
    while (markersIt.hasNext()) {
      TextGrid.Cell cell = markersIt.next();


      DiagramShape mark = new DiagramShape();
      mark.addToPoints(new ShapePoint(
          getCellMidX(cell),
          getCellMidY(cell)
        ));
      mark.setType(DiagramShape.TYPE_POINT_MARKER);
      mark.setFillColor(Color.white);
      shapes.add(mark);
    }


    removeDuplicateShapes();
    
    if(DEBUG) System.out.println("Shape count: "+shapes.size());
    if(DEBUG) System.out.println("Composite shape count: "+compositeShapes.size());
    
    //copy again
    workGrid = new TextGrid(grid);
    workGrid.removeNonText();
    
    
    // ****** handle text *******
    //break up text into groups
    TextGrid textGroupGrid = new TextGrid(workGrid);
    CellSet gaps = textGroupGrid.getAllBlanksBetweenCharacters();
    //kludge
    textGroupGrid.fillCellsWith(gaps, '|');
    CellSet nonBlank = textGroupGrid.getAllNonBlank();
    ArrayList<CellSet> textGroups = nonBlank.breakIntoDistinctBoundaries();
    if(DEBUG) System.out.println(textGroups.size()+" text groups found");
    
    Font font = FontMeasurer.instance().getFontFor(cellHeight);
    
    Iterator<CellSet> textGroupIt = textGroups.iterator();
    while(textGroupIt.hasNext()){
      CellSet textGroupCellSet = (CellSet) textGroupIt.next();
      
      TextGrid isolationGrid = new TextGrid(width, height);
      workGrid.copyCellsTo(textGroupCellSet, isolationGrid);
       
      ArrayList<CellStringPair> strings = isolationGrid.findStrings();
      Iterator<CellStringPair> it = strings.iterator();
      while(it.hasNext()){
        TextGrid.CellStringPair pair = it.next();
        TextGrid.Cell cell = pair.cell;
        String string = pair.string;
        if (DEBUG)
          System.out.println("Found string "+string);
        TextGrid.Cell lastCell = isolationGrid.new Cell(cell.x + string.length() - 1, cell.y);
      
        int minX = getCellMinX(cell);
        int y = getCellMaxY(cell);
        int maxX = getCellMaxX(lastCell);
      
        DiagramText textObject;
        if(FontMeasurer.instance().getWidthFor(string, font) > maxX - minX){ //does not fit horizontally
          Font lessWideFont = FontMeasurer.instance().getFontFor(maxX - minX, string);
          textObject = new DiagramText(minX, y, string, lessWideFont);
        } else textObject = new DiagramText(minX, y, string, font);
      
        textObject.centerVerticallyBetween(getCellMinY(cell), getCellMaxY(cell));
      
        //TODO: if the strings start with bullets they should be aligned to the left
      
        //position text correctly
        int otherStart = isolationGrid.otherStringsStartInTheSameColumn(cell);
        int otherEnd = isolationGrid.otherStringsEndInTheSameColumn(lastCell);
        if(0 == otherStart && 0 == otherEnd) {
          textObject.centerHorizontallyBetween(minX, maxX);
        } else if(otherEnd > 0 && otherStart == 0) {
          textObject.alignRightEdgeTo(maxX);
        } else if(otherEnd > 0 && otherStart > 0){

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Examples of org.stathissideris.ascii2image.text.TextGrid


      //see if largest is sum of others
      common.remove(largest);


      //make the sum set of the small sets on a grid
      TextGrid gridOfSmalls = new TextGrid(largest.getMaxX() + 2, largest.getMaxY() + 2);
      CellSet sumOfSmall = new CellSet();
      it2 = common.iterator();
      while(it2.hasNext()){
        CellSet set2 = (CellSet) it2.next();
        if(DEBUG_VERBOSE){
          System.out.println("One of smalls:");
          set2.printAsGrid();
        }
        gridOfSmalls.fillCellsWith(set2, '*');
      }
      if(DEBUG_VERBOSE){
        System.out.println("Sum of smalls:");
        gridOfSmalls.printDebug();
      }
      TextGrid gridLargest = new TextGrid(largest.getMaxX() + 2, largest.getMaxY() + 2);
      gridLargest.fillCellsWith(largest, '*');


      int index = filledSets.indexOf(largest);
      if(gridLargest.equals(gridOfSmalls)
          && !toBeRemovedIndices.contains(new Integer(index))) {
        toBeRemovedIndices.add(new Integer(index));
        if (DEBUG){
          System.out.println("Decided to remove set:");
          largest.printAsGrid();

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Examples of org.stathissideris.ascii2image.text.TextGrid

  }


  public TextGrid.Cell getCellFor(ShapePoint point){
    if(point == null) throw new IllegalArgumentException("ShapePoint cannot be null");
    //TODO: the fake grid is a problem
    TextGrid g = new TextGrid();
    return g.new Cell((int) point.x / cellWidth,
              (int) point.y / cellHeight);
  }

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Examples of org.stathissideris.ascii2image.text.TextGrid

    if(!expectedFile.exists()){
      System.out.println("Skipping " + textFile + " -- reference image does not exist");
      throw new FileNotFoundException("Reference image "+expectedFile+" does not exist");
    }
    
    TextGrid grid = new TextGrid();
    grid.loadFrom(textFile.toString());
    Diagram diagram = new Diagram(grid, options);


    RenderedImage image = new BitmapRenderer().renderToImage(diagram, options.renderingOptions);    
  
    File file = new File(actualFile.getAbsolutePath());

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Examples of org.stathissideris.ascii2image.text.TextGrid

  public static void generateImages(List<File> textFiles, String destinationDir) {
    
    ConversionOptions options = new ConversionOptions();
    
    for(File textFile : textFiles) {
      TextGrid grid = new TextGrid();


      File toFile = new File(destinationDir + File.separator + textFile.getName() + ".png");
      
      
      long a = java.lang.System.nanoTime();
      long b;
      try {
        System.out.println("Rendering "+textFile+" to "+toFile);
        
        grid.loadFrom(textFile.toString());
        Diagram diagram = new Diagram(grid, options);


        RenderedImage image = new BitmapRenderer().renderToImage(diagram, options.renderingOptions);
        
        b = java.lang.System.nanoTime();
            java.lang.System.out.println( "Done in " + Math.round((b - a)/10e6) + "msec");
        
        try {
          File file = new File(toFile.getAbsolutePath());
          ImageIO.write(image, "png", file);
        } catch (IOException e) {
          //e.printStackTrace();
          System.err.println("Error: Cannot write to file "+toFile);
          System.exit(1);
        }
        
      } catch (Exception e) {
        System.err.println("!!! Failed to render: "+textFile+" !!!\n");
        System.err.println(grid.getDebugString()+"\n");
        e.printStackTrace(System.err);
        
        continue;
      }      
    }

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Examples of org.stathissideris.ascii2image.text.TextGrid

    s.println("<h1>ditaa test suite</h1>");
    s.println("<h2>generated on: "+Calendar.getInstance().getTime()+"</h2>");




    for(File textFile : textFiles) {
      TextGrid grid = new TextGrid();


      File toFile = new File(reportDir + File.separator + textFile.getName() + ".png");
      
      
      long a = java.lang.System.nanoTime();
      long b;
      try {
        System.out.println("Rendering "+textFile+" to "+toFile);
        
        grid.loadFrom(textFile.toString());
        Diagram diagram = new Diagram(grid, options);


        RenderedImage image = new BitmapRenderer().renderToImage(diagram, options.renderingOptions);
        
        b = java.lang.System.nanoTime();
            java.lang.System.out.println( "Done in " + Math.round((b - a)/10e6) + "msec");
        
        try {
          File file = new File(toFile.getAbsolutePath());
          ImageIO.write(image, "png", file);
        } catch (IOException e) {
          //e.printStackTrace();
          System.err.println("Error: Cannot write to file "+toFile);
          System.exit(1);
        }
        
      } catch (Exception e) {
        s.println("<b>!!! Failed to render: "+textFile+" !!!</b>");
        s.println("<pre>\n"+grid.getDebugString()+"\n</pre>");
        s.println(e.getMessage());
        s.println("<hr />");
        s.flush();
        
        System.err.println("!!! Failed to render: "+textFile+" !!!");

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