use one element stack

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/ControlElement.java

@@ -26,5 +26,4 @@ public class ControlElement implements Element {
     public String toString() {
         return "ControlElement [NEWPAGE=" + NEWPAGE + ", name=" + name + "]";
     }
-
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/Cutter.java

@@ -13,7 +13,9 @@ import java.io.IOException;
 public class Cutter implements Dividable, Drawable {
 
     private final Drawable undividable;
+
     private final float viewPortY;
+
     private final float viewPortHeight;
 
     public Cutter(Drawable undividableElement) throws IOException {

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/Dividable.java

@@ -45,7 +45,5 @@ public interface Dividable {
         public Drawable getTail() {
             return tail;
         }
-
     }
-
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/Document.java

@@ -27,7 +27,7 @@ import java.util.Map.Entry;
 /**
  * The central class for creating a document.
  */
-public class Document implements Closeable, RenderListener {
+public class Document implements Element, Closeable, RenderListener {
 
     private final List<Entry<Element, LayoutHint>> elements = new ArrayList<>();
 
@@ -141,8 +141,10 @@ public class Document implements Closeable, RenderListener {
      *
      * @param element the element to add
      */
-    public void add(Element element) {
+    @Override
+    public Element add(Element element) {
         add(element, new VerticalLayoutHint());
+        return this;
     }
 
     /**

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/Element.java

@@ -5,4 +5,7 @@ package org.xbib.graphics.pdfbox.layout.elements;
  */
 public interface Element {
 
+    default Element add(Element element) {
+        throw new UnsupportedOperationException();
+    }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/Frame.java

@@ -77,7 +77,7 @@ public class Frame implements Element, Drawable, WidthRespecting, Dividable {
      */
     public Frame(final Drawable inner, final Float width, final Float height) {
         this(width, height);
-        add(inner);
+        addDrawable(inner);
     }
 
     /**
@@ -90,7 +90,7 @@ public class Frame implements Element, Drawable, WidthRespecting, Dividable {
      * @param height the height to constrain the border-box of the frame to, or
      *               <code>null</code>.
      */
-    public Frame(final Float width, final Float height) {
+    public Frame(Float width, Float height) {
         this.givenWidth = width;
         this.givenHeight = height;
     }
@@ -100,7 +100,7 @@ public class Frame implements Element, Drawable, WidthRespecting, Dividable {
      *
      * @param drawable the drawable
      */
-    public void add(final Drawable drawable) {
+    public void addDrawable(Drawable drawable) {
         innerList.add(drawable);
     }
 
@@ -580,13 +580,13 @@ public class Frame implements Element, Drawable, WidthRespecting, Dividable {
             first.addAll(dividedList.getHead());
         }
         if (divided != null) {
-            first.add(divided.getFirst());
+            first.addDrawable(divided.getFirst());
         }
         // create tail sub frame
         Frame tail = new Frame(getGivenWidth(), tailHeight);
         copyAllButInnerAndSizeTo(tail);
         if (divided != null) {
-            tail.add(divided.getTail());
+            tail.addDrawable(divided.getTail());
         }
         if (dividedList.getTail() != null) {
             tail.addAll(dividedList.getTail());
@@ -622,12 +622,14 @@ public class Frame implements Element, Drawable, WidthRespecting, Dividable {
     }
 
     public static class DividedList {
+
         private final List<Drawable> head;
+
         private final Drawable drawableToDivide;
+
         private final List<Drawable> tail;
 
-        public DividedList(List<Drawable> head, Drawable drawableToDivide,
+        public DividedList(List<Drawable> head, Drawable drawableToDivide, List<Drawable> tail) {
-                           List<Drawable> tail) {
             this.head = head;
             this.drawableToDivide = drawableToDivide;
             this.tail = tail;

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/HorizontalRuler.java

@@ -92,5 +92,4 @@ public class HorizontalRuler implements Drawable, Element, WidthRespecting {
     public Drawable removeLeadingEmptyVerticalSpace() {
         return this;
     }
-
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/Paragraph.java

@@ -80,4 +80,14 @@ public class Paragraph extends TextFlow implements Drawable, Element, WidthRespe
         return new Paragraph();
     }
 
+    @Override
+    public Element add(Element element) {
+        if (element instanceof TextElement) {
+            TextElement textElement = (TextElement) element;
+            addMarkup(textElement.getValue(), textElement.getSize(), textElement.getFont());
+        } else {
+            throw new UnsupportedOperationException();
+        }
+        return this;
+    }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/TableElement.java

@@ -24,8 +24,15 @@ public class TableElement implements Element, Drawable, Dividable {
         this.table = Table.builder();
     }
 
-    public void add(Row row) {
+    @Override
-        table.addRow(row);
+    public Element add(Element element) {
+        if (element instanceof Row.Builder) {
+            Row row = ((Row.Builder) element).build();
+            table.addRow(row);
+        } else {
+            throw new UnsupportedOperationException();
+        }
+        return this;
     }
 
     public void addColumnOfWidth(float width) {

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/TextElement.java

@@ -0,0 +1,31 @@
+package org.xbib.graphics.pdfbox.layout.elements;
+
+import org.xbib.graphics.pdfbox.layout.font.Font;
+
+public class TextElement implements Element {
+
+    private final String value;
+
+    private final Font font;
+
+    private final float size;
+
+    public TextElement(String value, Font font, float size) {
+        this.value = value;
+        this.font = font;
+        this.size = size;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public Font getFont() {
+        return font;
+    }
+
+    public float getSize() {
+        return size;
+    }
+
+}

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/VerticalSpacer.java

@@ -57,5 +57,4 @@ public class VerticalSpacer implements Drawable, Element, Dividable {
     public Drawable removeLeadingEmptyVerticalSpace() {
         return this;
     }
-
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/elements/render/VerticalLayout.java

@@ -264,5 +264,4 @@ public class VerticalLayout implements Layout {
         }
         return drawable;
     }
-
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/State.java

@@ -1,24 +1,26 @@
 package org.xbib.graphics.pdfbox.layout.script;
 
 import org.xbib.graphics.pdfbox.layout.elements.Document;
-import org.xbib.graphics.pdfbox.layout.elements.Paragraph;
+import org.xbib.graphics.pdfbox.layout.elements.Element;
-import org.xbib.graphics.pdfbox.layout.elements.TableElement;
-import org.xbib.graphics.pdfbox.layout.table.Row;
 
-import java.util.Collection;
+import java.util.List;
 import java.util.Stack;
+import java.util.stream.Collectors;
 
 public class State {
 
-    public Stack<Document> documents = new Stack<>();
+    public Stack<Element> elements = new Stack<>();
 
-    public Stack<Paragraph> paragraphs = new Stack<>();
+    public Document getDocument() {
+        List<Document> list = getDocuments();
+        int size = list.size();
+        return size > 0 ? list.get(size - 1) : null;
+    }
 
-    public Stack<TableElement> tables = new Stack<>();
+    public List<Document> getDocuments() {
-
+        return elements.stream()
-    public Stack<Row.Builder> rows = new Stack<>();
+                .filter(e -> e instanceof Document)
-
+                .map(e -> (Document) e)
-    public Collection<Document> getDocuments() {
+                .collect(Collectors.toList());
-        return documents;
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/BarcodeCommand.java

@@ -38,6 +38,6 @@ public class BarcodeCommand implements Command {
         if (settings.containsSetting("scale")) {
             element.setScale(settings.getAsFloat("scale", element.getScale()));
         }
-        state.documents.peek().add(element);
+        state.elements.peek().add(element);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/CellCommand.java

@@ -1,6 +1,7 @@
 package org.xbib.graphics.pdfbox.layout.script.command;
 
 import org.xbib.graphics.pdfbox.layout.color.ColorFactory;
+import org.xbib.graphics.pdfbox.layout.elements.Document;
 import org.xbib.graphics.pdfbox.layout.font.Font;
 import org.xbib.graphics.pdfbox.layout.font.Fonts;
 import org.xbib.graphics.pdfbox.layout.script.Engine;
@@ -21,7 +22,8 @@ public class CellCommand implements Command {
         TextCell.Builder cell = TextCell.builder();
         cell.text(settings.get("value"));
         cell.fontSize(settings.getAsFloat("size", 11.0f));
-        Font font = Fonts.valueOf(settings.get("font", "helvetica").toUpperCase(Locale.ROOT)).getFont(state.documents.peek());
+        Document document = state.getDocument();
+        Font font = Fonts.valueOf(settings.get("font", "helvetica").toUpperCase(Locale.ROOT)).getFont(document);
         cell.font(font);
         cell.padding(settings.getAsFloat("padding", 0f));
         Color color = ColorFactory.web(settings.get("color", "black"));
@@ -39,6 +41,6 @@ public class CellCommand implements Command {
         cell.borderStyle(styleInterface);
         cell.colSpan(settings.getAsInt("colspan", 1));
         cell.rowSpan(settings.getAsInt("rowspan", 1));
-        state.rows.peek().add(cell.build());
+        state.elements.peek().add(cell.build());
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/ColumnlayoutCommand.java

@@ -12,6 +12,6 @@ public class ColumnlayoutCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         ColumnLayout columnLayout = new ColumnLayout(settings.getAsInt("columns", 2), settings.getAsFloat("spacing", 10f));
-        state.documents.peek().add(columnLayout);
+        state.elements.peek().add(columnLayout);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/DocumentCommand.java

@@ -14,8 +14,6 @@ public class DocumentCommand implements Command {
 
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
-        state.paragraphs.clear();
-        state.tables.clear();
         String margin = settings.get("margin", "0 0 0 0");
         String[] margins = margin.split(" ");
         PageFormat pageFormat = PageFormat.builder()
@@ -42,7 +40,7 @@ public class DocumentCommand implements Command {
         if (settings.containsSetting("title")) {
             document.setTitle(settings.get("title"));
         }
-        state.documents.push(document);
+        state.elements.push(document);
         engine.executeElements(settings);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/FrameCommand.java

@@ -0,0 +1,28 @@
+package org.xbib.graphics.pdfbox.layout.script.command;
+
+import org.xbib.graphics.pdfbox.layout.color.ColorFactory;
+import org.xbib.graphics.pdfbox.layout.elements.Frame;
+import org.xbib.graphics.pdfbox.layout.script.Engine;
+import org.xbib.graphics.pdfbox.layout.script.State;
+import org.xbib.settings.Settings;
+
+import java.awt.Color;
+import java.io.IOException;
+
+public class FrameCommand implements Command {
+
+    @Override
+    public void execute(Engine engine, State state, Settings settings) throws IOException {
+        Frame frame = new Frame();
+        //frame.setPadding(settings.getAsFloat("padding", 0f));
+        if (settings.containsSetting("backgroundcolor")) {
+            Color backgroundColor = ColorFactory.web(settings.get("backgroundcolor", "black"));
+            frame.setBackgroundColor(backgroundColor);
+        }
+        if (settings.containsSetting("bordercolor")) {
+            Color borderColor = ColorFactory.web(settings.get("bordercolor", "black"));
+            frame.setBorderColor(borderColor);
+        }
+        state.elements.peek().add(frame);
+    }
+}

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/HorizontalrulerCommand.java

@@ -23,6 +23,6 @@ public class HorizontalrulerCommand implements Command {
         }
         Color color = ColorFactory.web(settings.get("color", "black"));
         HorizontalRuler horizontalRuler = new HorizontalRuler(strokeBuilder.build(), color);
-        state.documents.peek().add(horizontalRuler);
+        state.elements.peek().add(horizontalRuler);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/ImageCommand.java

@@ -35,6 +35,6 @@ public class ImageCommand implements Command {
         float margintop = Float.parseFloat(margins[2]);
         float marginbottom = Float.parseFloat(margins[3]);
         VerticalLayoutHint verticalLayoutHint = new VerticalLayoutHint(alignment, marginleft, marginright, margintop, marginbottom, true);
-        state.documents.peek().add(imageElement, verticalLayoutHint);
+        state.elements.peek().add(imageElement);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/MarkpositionCommand.java

@@ -12,6 +12,6 @@ public class MarkpositionCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         PositionControl.MarkPosition markPosition = PositionControl.createMarkPosition();
-        state.documents.peek().add(markPosition);
+        state.elements.peek().add(markPosition);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/MovepositionCommand.java

@@ -12,6 +12,6 @@ public class MovepositionCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         PositionControl.MovePosition movePosition = PositionControl.createMovePosition(settings.getAsFloat("x", null), settings.getAsFloat("y", null));
-        state.documents.peek().add(movePosition);
+        state.elements.peek().add(movePosition);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/NewcolumnCommand.java

@@ -11,6 +11,6 @@ public class NewcolumnCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         ControlElement controlElement = ControlElement.NEWCOLUMN;
-        state.documents.peek().add(controlElement);
+        state.elements.peek().add(controlElement);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/NewpageCommand.java

@@ -11,6 +11,6 @@ public class NewpageCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         ControlElement controlElement = ControlElement.NEWPAGE;
-        state.documents.peek().add(controlElement);
+        state.elements.peek().add(controlElement);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/ParagraphCommand.java

@@ -15,17 +15,18 @@ public class ParagraphCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         Paragraph paragraph = new Paragraph();
-        state.paragraphs.push(paragraph);
         if (settings.containsSetting("x") && settings.containsSetting("y")) {
             paragraph.setAbsolutePosition(new Position(settings.getAsFloat("x", 0f), settings.getAsFloat("y", 0f)));
         }
         if (settings.containsSetting("width")) {
-            paragraph.setMaxWidth(settings.getAsFloat("width", state.documents.peek().getPageWidth()));
+            paragraph.setMaxWidth(settings.getAsFloat("width", 0f));
         }
         if (settings.containsSetting("alignment")) {
             paragraph.setAlignment(Alignment.valueOf(settings.get("alignment", "left").toUpperCase(Locale.ROOT)));
         }
-        state.documents.peek().add(paragraph);
+        state.elements.push(paragraph);
         engine.executeElements(settings);
+        state.elements.pop();
+        state.elements.peek().add(paragraph);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/PathCommand.java

@@ -47,6 +47,6 @@ public class PathCommand implements Command {
                 strokeBuilder.dashPattern(new Stroke.DashPattern(settings.getAsFloat("dash", 1f)));
         }
         Color color = ColorFactory.web(settings.get("color", "black"));
-        state.documents.peek().add(new PathElement(path, strokeBuilder.build(), color, position));
+        state.elements.peek().add(new PathElement(path, strokeBuilder.build(), color, position));
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/ResetpositionCommand.java

@@ -12,6 +12,6 @@ public class ResetpositionCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         PositionControl.ResetPosition resetPosition = PositionControl.createResetPosition();
-        state.documents.peek().add(resetPosition);
+        state.elements.peek().add(resetPosition);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/RowCommand.java

@@ -13,9 +13,9 @@ public class RowCommand implements Command {
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         Row.Builder row = Row.builder();
         row.padding(settings.getAsFloat("padding", 0f));
-
+        state.elements.push(row);
-        state.rows.push(row);
         engine.executeElements(settings);
-        state.tables.peek().add(row.build());
+        state.elements.pop();
+        state.elements.peek().add(row);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/SetpositionCommand.java

@@ -12,6 +12,6 @@ public class SetpositionCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         PositionControl.SetPosition setPosition = PositionControl.createSetPosition(settings.getAsFloat("x", null), settings.getAsFloat("y", null));
-        state.documents.peek().add(setPosition);
+        state.elements.peek().add(setPosition);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/TableCommand.java

@@ -11,7 +11,6 @@ public class TableCommand implements Command {
 
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
-        state.rows.clear();
         TableElement tableElement = new TableElement();
         if (settings.containsSetting("columnwidths")) {
             String columnWidths = settings.get("columnwidths");
@@ -19,8 +18,9 @@ public class TableCommand implements Command {
                 tableElement.addColumnOfWidth(Float.parseFloat(columnWidth));
             }
         }
-        state.documents.peek().add(tableElement);
+        state.elements.push(tableElement);
-        state.tables.push(tableElement);
         engine.executeElements(settings);
+        state.elements.pop();
+        state.elements.peek().add(tableElement);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/TextCommand.java

@@ -1,5 +1,7 @@
 package org.xbib.graphics.pdfbox.layout.script.command;
 
+import org.xbib.graphics.pdfbox.layout.elements.Document;
+import org.xbib.graphics.pdfbox.layout.elements.TextElement;
 import org.xbib.graphics.pdfbox.layout.font.Font;
 import org.xbib.graphics.pdfbox.layout.font.Fonts;
 import org.xbib.graphics.pdfbox.layout.script.Engine;
@@ -14,7 +16,8 @@ public class TextCommand implements Command {
     public void execute(Engine engine, State state, Settings settings) {
         String value = settings.get("value");
         float size = settings.getAsFloat("size", 11.0f);
-        Font font = Fonts.valueOf(settings.get("font", "helvetica").toUpperCase(Locale.ROOT)).getFont(state.documents.peek());
+        Document document = state.getDocument();
-        state.paragraphs.peek().addMarkup(value, size, font);
+        Font font = Fonts.valueOf(settings.get("font", "helvetica").toUpperCase(Locale.ROOT)).getFont(document);
+        state.elements.peek().add(new TextElement(value, font, size));
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/script/command/VerticalspacerCommand.java

@@ -11,6 +11,6 @@ public class VerticalspacerCommand implements Command {
     @Override
     public void execute(Engine engine, State state, Settings settings) throws IOException {
         VerticalSpacer verticalSpacer = new VerticalSpacer(settings.getAsFloat("height", 0f));
-        state.documents.peek().add(verticalSpacer);
+        state.elements.peek().add(verticalSpacer);
     }
 }

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/table/AbstractCell.java

@@ -1,10 +1,11 @@
 package org.xbib.graphics.pdfbox.layout.table;
 
+import org.xbib.graphics.pdfbox.layout.elements.Element;
 import org.xbib.graphics.pdfbox.layout.table.render.AbstractCellRenderer;
 import org.xbib.graphics.pdfbox.layout.table.render.Renderer;
 import java.awt.Color;
 
-public abstract class AbstractCell {
+public abstract class AbstractCell implements Element {
 
     private static final float DEFAULT_MIN_HEIGHT = 10f;
 

graphics-pdfbox-layout/src/main/java/org/xbib/graphics/pdfbox/layout/table/Row.java

@@ -1,5 +1,6 @@
 package org.xbib.graphics.pdfbox.layout.table;
 
+import org.xbib.graphics.pdfbox.layout.elements.Element;
 import org.xbib.graphics.pdfbox.layout.font.Font;
 
 import java.awt.Color;
@@ -89,7 +90,7 @@ public class Row {
         return new Builder();
     }
 
-    public static class Builder {
+    public static class Builder implements Element {
 
         private final List<AbstractCell> cells = new ArrayList<>();
 
@@ -98,8 +99,9 @@ public class Row {
         private Builder() {
         }
 
-        public Builder add(final AbstractCell cell) {
+        @Override
-            cells.add(cell);
+        public Builder add(Element element) {
+            cells.add((AbstractCell) element);
             return this;
         }
 

graphics-pdfbox-layout/src/test/java/org/xbib/graphics/pdfbox/layout/test/FramesTest.java

@@ -76,7 +76,7 @@ public class FramesTest {
         paragraph = new Paragraph();
         paragraph.addMarkup(text2, 11, BaseFont.TIMES);
         paragraph.addMarkup(text2, 11, BaseFont.TIMES);
-        frame.add(paragraph);
+        frame.addDrawable(paragraph);
         document.add(frame);
         document.render().save(new FileOutputStream("build/frames.pdf")).close();
     }

graphics-pdfbox-layout/src/test/resources/org/xbib/graphics/pdfbox/layout/test/script/elements.json

@@ -1,6 +1,6 @@
 {
   "type": "document",
-  "margin": "10 10 10 10",
+  "margin": "20 20 20 20",
   "author": "Jörg Prante",
   "elements": [
     {
@@ -80,6 +80,7 @@
     },
     {
       "type": "table",
+      "padding": 10,
       "columnwidths": "50 50 50",
       "elements": [
         {