de.lessvoid.nifty.html.NiftyBuilderFactory Maven / Gradle / Ivy

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This module adds basic HTML support to Nifty. It creates Nifty elements from HTML directly. This is useful if you need to display messages or info boxes that contain more than simple elements.
There is a newer version: 1.4.3
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package de.lessvoid.nifty.html;

import de.lessvoid.nifty.builder.EffectBuilder;
import de.lessvoid.nifty.builder.ElementBuilder.Align;
import de.lessvoid.nifty.builder.ImageBuilder;
import de.lessvoid.nifty.builder.PanelBuilder;
import de.lessvoid.nifty.builder.TextBuilder;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.logging.Logger;

public class NiftyBuilderFactory {
  private final Logger log = Logger.getLogger(NiftyBuilderFactory.class.getName());

  public PanelBuilder createBodyPanelBuilder() {
    PanelBuilder builder = createPanelBuilder();
    builder.width("100%");
    builder.height("100%");
    builder.childLayoutVertical();
    return builder;
  }

  public PanelBuilder createParagraphPanelBuilder() {
    PanelBuilder builder = createPanelBuilder();
    builder.width("100%");
    builder.childLayoutVertical();
    return builder;
  }

  public TextBuilder createTextBuilder(@Nonnull final String text, @Nonnull final String defaultFontName, @Nullable final String color) {
    TextBuilder textBuilder = createTextBuilder();
    textBuilder.text(text);
    textBuilder.wrap(true);
    textBuilder.alignLeft();
    textBuilder.valignTop();
    textBuilder.textHAlignLeft();
    textBuilder.textVAlignTop();
    textBuilder.font(defaultFontName);
    textBuilder.width("100%");
    if (color != null) {
      textBuilder.color(color);
    }
    return textBuilder;
  }

  public ImageBuilder createImageBuilder(@Nonnull final String src, @Nullable final String align, @Nullable final String width, @Nullable final String height, @Nullable final String bgcolor, @Nullable final String vspace) {
    ImageBuilder imageBuilder = createImageBuilder();
    imageBuilder.filename(src);
    if (align != null) {
      imageBuilder.align(translateAlign(align));
    }
    if (width != null) {
      imageBuilder.width(width);
    }
    if (height != null) {
      imageBuilder.height(height);
    }
    if (bgcolor != null) {
      imageBuilder.backgroundColor(bgcolor);
    }
    if (vspace != null) {
      imageBuilder.padding(vspace);
    }
    return imageBuilder;
  }

  public PanelBuilder createBreakPanelBuilder(@Nonnull final String height) {
    PanelBuilder result = createPanelBuilder();
    result.height(height);
    return result;
  }

  public PanelBuilder createTableTagPanelBuilder(final String width, final String bgcolor, final String border, final String bordercolor) {
    PanelBuilder result = createPanelBuilder();
    result.childLayoutVertical();
    addTableGeneralAttributes(width, bgcolor, border, bordercolor, result);
    return result;
  }

  public PanelBuilder createTableRowPanelBuilder(final String width, final String bgcolor, final String border, final String bordercolor) {
    PanelBuilder result = createPanelBuilder();
    result.childLayoutHorizontal();
    addTableGeneralAttributes(width, bgcolor, border, bordercolor, result);
    return result;
  }

  public PanelBuilder createTableDataPanelBuilder(final String width, final String bgcolor, final String border, final String bordercolor) {
    PanelBuilder result = createPanelBuilder();
    result.childLayoutVertical();
    addTableGeneralAttributes(width, bgcolor, border, bordercolor, result);
    return result;
  }

  PanelBuilder createPanelBuilder() {
    return new PanelBuilder();
  }

  TextBuilder createTextBuilder() {
    return new TextBuilder();
  }

  ImageBuilder createImageBuilder() {
    return new ImageBuilder();
  }

  @Nonnull
  private Align translateAlign(final String align) {
    if ("left".equalsIgnoreCase(align)) {
      return Align.Left;
    } else if ("right".equalsIgnoreCase(align)) {
        return Align.Right;
    } else if ("middle".equalsIgnoreCase(align)) {
      return Align.Center;
    } else {
      // default to left
      log.warning("Unknown align type [" + align + "] detected. Will default to Align.LEFT");
      return Align.Left;
    }
  }

  private void addTableGeneralAttributes(
      @Nullable final String width,
      @Nullable final String bgcolor,
      @Nullable final String border,
      @Nullable final String bordercolor,
      @Nonnull PanelBuilder result) {
    if (width != null) {
      result.width(width);
    }
    if (bgcolor != null) {
      result.backgroundColor(bgcolor);
    }
    if (border != null) {
      result.onActiveEffect(new EffectBuilder("border") {{
        effectParameter("border", border);
        if (bordercolor != null) {
          effectParameter("color", bordercolor);
        }
      }});
    }
  }
}