@Override
public void applySpan(HtmlSpanner spanner, SpannableStringBuilder builder) {
if (useStyle.getFontFamily() != null
|| useStyle.getFontStyle() != null
|| useStyle.getFontWeight() != null) {
FontFamilySpan originalSpan = getFontFamilySpan(builder, start, end);
FontFamilySpan newSpan;
if (useStyle.getFontFamily() == null && originalSpan == null) {
newSpan = new FontFamilySpan(this.defaultFont);
} else if (useStyle.getFontFamily() != null) {
newSpan = new FontFamilySpan(useStyle.getFontFamily());
} else {
newSpan = new FontFamilySpan(originalSpan.getFontFamily());
}
if (useStyle.getFontWeight() != null) {
newSpan.setBold(useStyle.getFontWeight() == Style.FontWeight.BOLD);
} else if (originalSpan != null) {
newSpan.setBold(originalSpan.isBold());
}
if (useStyle.getFontStyle() != null) {
newSpan.setItalic(useStyle.getFontStyle() == Style.FontStyle.ITALIC);
} else if (originalSpan != null) {
newSpan.setItalic(originalSpan.isItalic());
}
// Log.d("StyleCallback", "Applying FontFamilySpan from " + start + " to " + end + " on text "
// + builder.subSequence(start, end));
// Log.d("StyleCallback", "FontFamilySpan: " + newSpan );
builder.setSpan(newSpan, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
// If there's no border, we use a BackgroundColorSpan to draw colour behind the text
if (spanner.isUseColoursFromStyle()
&& useStyle.getBackgroundColor() != null
&& useStyle.getBorderStyle() == null) {
// Log.d("StyleCallback", "Applying BackgroundColorSpan with color " +
// useStyle.getBackgroundColor() + " from " + start + " to " + end + " on text " +
// builder.subSequence(start, end));
builder.setSpan(
new BackgroundColorSpan(useStyle.getBackgroundColor()),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
// If there is a border, the BorderSpan will also draw the background colour if needed.
if (useStyle.getBorderStyle() != null) {
builder.setSpan(
new BorderSpan(useStyle, start, end, spanner.isUseColoursFromStyle()),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
if (useStyle.getFontSize() != null) {
StyleValue styleValue = useStyle.getFontSize();
if (styleValue.getUnit() == StyleValue.Unit.PS) {
if (styleValue.getFloatValue() > 0) {
// Log.d("StyleCallback", "Applying AbsoluteFloatSizeSpan with size " +
// useStyle.getAbsoluteFontSize() + " from " + start + " to " + end + " on text " +
// builder.subSequence(start, end));
builder.setSpan(
new AbsoluteFloatSizeSpan(styleValue.getFloatValue()),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
} else if (styleValue.getUnit() == StyleValue.Unit.PX) {
if (styleValue.getIntValue() > 0) {
// Log.d("StyleCallback", "Applying AbsoluteSizeSpan with size " +
// useStyle.getAbsoluteFontSize() + " from " + start + " to " + end + " on text " +
// builder.subSequence(start, end));
builder.setSpan(
new AbsoluteSizeSpan(styleValue.getIntValue()),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
} else {
if (styleValue.getFloatValue() > 0f) {
// Log.d("StyleCallback", "Applying RelativeSizeSpan with size " +
// useStyle.getRelativeFontSize() + " from " + start + " to " + end + " on text " +
// builder.subSequence(start, end));
builder.setSpan(
new RelativeSizeSpan(styleValue.getFloatValue()),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
}
if (spanner.isUseColoursFromStyle() && useStyle.getColor() != null) {
// Log.d("StyleCallback", "Applying ForegroundColorSpan from " + start + " to " + end + " on
// text " + builder.subSequence(start, end) );
builder.setSpan(
new ForegroundColorSpan(useStyle.getColor()),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
if (useStyle.getTextAlignment() != null) {
AlignmentSpan alignSpan = null;
switch (useStyle.getTextAlignment()) {
case LEFT:
alignSpan = new AlignNormalSpan();
break;
case CENTER:
alignSpan = new CenterSpan();
break;
case RIGHT:
alignSpan = new AlignOppositeSpan();
break;
}
// Log.d("StyleCallback", "Applying AlignmentSpan from " + start + " to " + end + " on text "
// + builder.subSequence(start, end) );
builder.setSpan(alignSpan, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
if (useStyle.getTextIndent() != null) {
StyleValue styleValue = useStyle.getTextIndent();
int marginStart = start;
while (marginStart < end && builder.charAt(marginStart) == '\n') {
marginStart++;
}
int marginEnd = min(end, marginStart + 1);
Log.d(
"StyleCallback",
"Applying LeadingMarginSpan from "
+ marginStart
+ " to "
+ marginEnd
+ " on text "
+ builder.subSequence(marginStart, marginEnd));
if (styleValue.getUnit() == StyleValue.Unit.PX) {
if (styleValue.getIntValue() > 0) {
builder.setSpan(
new LeadingMarginSpan.Standard(styleValue.getIntValue(), 0),
marginStart,
marginEnd,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
} else {
if (styleValue.getFloatValue() > 0f) {
builder.setSpan(
new LeadingMarginSpan.Standard(
(int) (HtmlSpanner.HORIZONTAL_EM_WIDTH * styleValue.getFloatValue()), 0),
marginStart,
marginEnd,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
}
/* We ignore negative horizontal margins, since that would cause the text to be rendered off-screen */
if (useStyle.getMarginLeft() != null) {
StyleValue styleValue = useStyle.getMarginLeft();
if (styleValue.getUnit() == StyleValue.Unit.PX) {
if (styleValue.getIntValue() > 0) {
builder.setSpan(
new LeadingMarginSpan.Standard(styleValue.getIntValue()),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
} else if (styleValue.getFloatValue() > 0f) {
builder.setSpan(
new LeadingMarginSpan.Standard(
(int) (HtmlSpanner.HORIZONTAL_EM_WIDTH * styleValue.getFloatValue())),
start,
end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
}
RGB getBackgroundColor() {
return style.getBackgroundColor();
}