ImageRenderState.java

/*
    GNU LESSER GENERAL PUBLIC LICENSE
    Copyright (C) 2006 The XAMJ Project

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Contact info: lobochief@users.sourceforge.net
 */
package org.lobobrowser.html.style;

import java.awt.Color;

import org.lobobrowser.html.domimpl.HTMLElementImpl;

public class ImageRenderState extends StyleSheetRenderState {
  public ImageRenderState(final RenderState prevRenderState, final HTMLElementImpl element) {
    super(prevRenderState, element);
  }

  // TODO: if this logic can be moved to attr2Styles, then this render state could be chopped off.
  @Override
  public HtmlInsets getMarginInsets() {
    HtmlInsets mi = this.marginInsets;
    if (mi != INVALID_INSETS) {
      return mi;
    }
    final JStyleProperties props = this.getCssProperties();
    if (props == null) {
      mi = null;
    } else {
      mi = HtmlValues.getMarginInsets(props, this);
    }
    if (mi == null) {
      int hspace = 0;
      int vspace = 0;
      boolean createNew = false;
      final String hspaceText = this.element.getAttribute("hspace");
      if ((hspaceText != null) && (hspaceText.length() != 0)) {
        createNew = true;
        try {
          hspace = Integer.parseInt(hspaceText);
        } catch (final NumberFormatException nfe) {
          // TODO: Percentages?
        }
      }
      final String vspaceText = this.element.getAttribute("vspace");
      if ((vspaceText != null) && (vspaceText.length() != 0)) {
        createNew = true;
        try {
          vspace = Integer.parseInt(vspaceText);
        } catch (final NumberFormatException nfe) {
          // TODO: Percentages?
        }
      }
      if (createNew) {
        mi = new HtmlInsets();
        mi.top = vspace;
        mi.topType = HtmlInsets.TYPE_PIXELS;
        mi.bottom = vspace;
        mi.bottomType = HtmlInsets.TYPE_PIXELS;
        mi.left = hspace;
        mi.leftType = HtmlInsets.TYPE_PIXELS;
        mi.right = hspace;
        mi.rightType = HtmlInsets.TYPE_PIXELS;
      }
    }
    this.marginInsets = mi;
    return mi;
  }

  @Override
  public BorderInfo getBorderInfo() {
    BorderInfo binfo = this.borderInfo;
    if (binfo != INVALID_BORDER_INFO) {
      return binfo;
    }
    binfo = super.getBorderInfo();
    if ((binfo == null)
        || ((binfo.topStyle == HtmlValues.BORDER_STYLE_NONE) && (binfo.bottomStyle == HtmlValues.BORDER_STYLE_NONE)
            && (binfo.leftStyle == HtmlValues.BORDER_STYLE_NONE) && (binfo.rightStyle == HtmlValues.BORDER_STYLE_NONE))) {
      if (binfo == null) {
        binfo = new BorderInfo();
      }
      final HTMLElementImpl element = this.element;
      if (element != null) {
        String border = element.getAttribute("border");
        if (border != null) {
          border = border.trim();
          int value;
          int valueType;
          if (border.endsWith("%")) {
            valueType = HtmlInsets.TYPE_PERCENT;
            try {
              value = Integer.parseInt(border.substring(0, border.length() - 1));
            } catch (final NumberFormatException nfe) {
              value = 0;
            }
          } else {
            valueType = HtmlInsets.TYPE_PIXELS;
            try {
              value = Integer.parseInt(border);
            } catch (final NumberFormatException nfe) {
              value = 0;
            }
          }
          final HtmlInsets borderInsets = new HtmlInsets();
          borderInsets.top = borderInsets.left = borderInsets.right = borderInsets.bottom = value;
          borderInsets.topType = borderInsets.leftType = borderInsets.rightType = borderInsets.bottomType = valueType;
          binfo.insets = borderInsets;
          if (binfo.topColor == null) {
            binfo.topColor = Color.BLACK;
          }
          if (binfo.leftColor == null) {
            binfo.leftColor = Color.BLACK;
          }
          if (binfo.rightColor == null) {
            binfo.rightColor = Color.BLACK;
          }
          if (binfo.bottomColor == null) {
            binfo.bottomColor = Color.BLACK;
          }
          if (value != 0) {
            binfo.topStyle = binfo.leftStyle = binfo.rightStyle = binfo.bottomStyle = HtmlValues.BORDER_STYLE_SOLID;
          }
        }
      }
    }
    this.borderInfo = binfo;
    return binfo;
  }
}