public void drawRenderedImage(BufferedImage img, AffineTransform at) {
Log.d(
"drawRenderedImage",
"sx: "
+ at.getScaleX()
+ ", sy: "
+ at.getScaleY()
+ ", tx: "
+ at.getTranslateX()
+ ", ty: "
+ at.getTranslateY());
Matrix m = new Matrix();
float[] values = new float[9];
values[Matrix.MSCALE_X] = (float) at.getScaleX();
values[Matrix.MSCALE_Y] = (float) at.getScaleY();
values[Matrix.MTRANS_X] = (float) at.getTranslateX();
values[Matrix.MTRANS_Y] = (float) at.getTranslateY();
values[Matrix.MSKEW_X] = (float) at.getShearX();
values[Matrix.MSKEW_Y] = (float) at.getShearY();
values[Matrix.MPERSP_2] = 1;
m.setValues(values);
canvas.drawBitmap(img.bm, m, paint);
}
private boolean i_validate(EAttribute a) {
switch (a) {
case EFAMILY:
if (family == null || family.length() == 0) family = DEFAULT.family;
return true;
case EWEIGHT:
return weight > 0 && weight < 10;
case EWIDTH:
return width >= .5f && width < 10;
case EPOSTURE:
return posture >= -1 && posture <= 1;
case ESIZE:
return size >= 0;
case ETRANSFORM:
if (transform != null && transform.isIdentity()) transform = DEFAULT.transform;
return true;
case ESUPERSCRIPT:
return superscript >= -7 && superscript <= 7;
case EFONT:
return true;
case ECHAR_REPLACEMENT:
return true;
case EFOREGROUND:
return true;
case EBACKGROUND:
return true;
case EUNDERLINE:
return underline >= -1 && underline < 6;
case ESTRIKETHROUGH:
return true;
case ERUN_DIRECTION:
return runDirection >= -2 && runDirection <= 1;
case EBIDI_EMBEDDING:
return bidiEmbedding >= -61 && bidiEmbedding < 62;
case EJUSTIFICATION:
justification = max(0, min(justification, 1));
return true;
case EINPUT_METHOD_HIGHLIGHT:
return true;
case EINPUT_METHOD_UNDERLINE:
return imUnderline >= -1 && imUnderline < 6;
case ESWAP_COLORS:
return true;
case ENUMERIC_SHAPING:
return true;
case EKERNING:
return kerning >= 0 && kerning <= 1;
case ELIGATURES:
return ligatures >= 0 && ligatures <= 1;
case ETRACKING:
return tracking >= -1 && tracking <= 10;
default:
throw new InternalError("unknown attribute: " + a);
}
}
public void updateDerivedTransforms() {
// this also updates the mask for the baseline transform
if (transform == null) {
baselineTransform = null;
charTransform = null;
} else {
charTransform = new AffineTransform(transform);
baselineTransform = extractXRotation(charTransform, true);
if (charTransform.isIdentity()) {
charTransform = null;
}
if (baselineTransform.isIdentity()) {
baselineTransform = null;
}
}
if (baselineTransform == null) {
nondefault &= ~EBASELINE_TRANSFORM.mask;
} else {
nondefault |= EBASELINE_TRANSFORM.mask;
}
}
/**
* Compute width of a single cell
*
* @param cell the cell whose width is to be calculated
* @param defaultCharWidth the width of a single character
* @param formatter formatter used to prepare the text to be measured
* @param useMergedCells whether to use merged cells
* @return the width in pixels
*/
public static double getCellWidth(
Cell cell, int defaultCharWidth, DataFormatter formatter, boolean useMergedCells) {
Sheet sheet = cell.getSheet();
Workbook wb = sheet.getWorkbook();
Row row = cell.getRow();
int column = cell.getColumnIndex();
int colspan = 1;
for (int i = 0; i < sheet.getNumMergedRegions(); i++) {
CellRangeAddress region = sheet.getMergedRegion(i);
if (containsCell(region, row.getRowNum(), column)) {
if (!useMergedCells) {
// If we're not using merged cells, skip this one and move on to the next.
return -1;
}
cell = row.getCell(region.getFirstColumn());
colspan = 1 + region.getLastColumn() - region.getFirstColumn();
}
}
CellStyle style = cell.getCellStyle();
int cellType = cell.getCellType();
// for formula cells we compute the cell width for the cached formula result
if (cellType == Cell.CELL_TYPE_FORMULA) cellType = cell.getCachedFormulaResultType();
Font font = wb.getFontAt(style.getFontIndex());
AttributedString str;
TextLayout layout;
double width = -1;
if (cellType == Cell.CELL_TYPE_STRING) {
RichTextString rt = cell.getRichStringCellValue();
String[] lines = rt.getString().split("\\n");
for (int i = 0; i < lines.length; i++) {
String txt = lines[i] + defaultChar;
str = new AttributedString(txt);
copyAttributes(font, str, 0, txt.length());
if (rt.numFormattingRuns() > 0) {
// TODO: support rich text fragments
}
layout = new TextLayout(str.getIterator(), fontRenderContext);
if (style.getRotation() != 0) {
/*
* Transform the text using a scale so that it's height is increased by a multiple of the leading,
* and then rotate the text before computing the bounds. The scale results in some whitespace around
* the unrotated top and bottom of the text that normally wouldn't be present if unscaled, but
* is added by the standard Excel autosize.
*/
AffineTransform trans = new AffineTransform();
trans.concatenate(
AffineTransform.getRotateInstance(style.getRotation() * 2.0 * Math.PI / 360.0));
trans.concatenate(AffineTransform.getScaleInstance(1, fontHeightMultiple));
width =
Math.max(
width,
((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth)
+ cell.getCellStyle().getIndention());
} else {
width =
Math.max(
width,
((layout.getBounds().getWidth() / colspan) / defaultCharWidth)
+ cell.getCellStyle().getIndention());
}
}
} else {
String sval = null;
if (cellType == Cell.CELL_TYPE_NUMERIC) {
// Try to get it formatted to look the same as excel
try {
sval = formatter.formatCellValue(cell, dummyEvaluator);
} catch (Exception e) {
sval = String.valueOf(cell.getNumericCellValue());
}
} else if (cellType == Cell.CELL_TYPE_BOOLEAN) {
sval = String.valueOf(cell.getBooleanCellValue()).toUpperCase();
}
if (sval != null) {
String txt = sval + defaultChar;
str = new AttributedString(txt);
copyAttributes(font, str, 0, txt.length());
layout = new TextLayout(str.getIterator(), fontRenderContext);
if (style.getRotation() != 0) {
/*
* Transform the text using a scale so that it's height is increased by a multiple of the leading,
* and then rotate the text before computing the bounds. The scale results in some whitespace around
* the unrotated top and bottom of the text that normally wouldn't be present if unscaled, but
* is added by the standard Excel autosize.
*/
AffineTransform trans = new AffineTransform();
trans.concatenate(
AffineTransform.getRotateInstance(style.getRotation() * 2.0 * Math.PI / 360.0));
trans.concatenate(AffineTransform.getScaleInstance(1, fontHeightMultiple));
width =
Math.max(
width,
((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth)
+ cell.getCellStyle().getIndention());
} else {
width =
Math.max(
width,
((layout.getBounds().getWidth() / colspan) / defaultCharWidth)
+ cell.getCellStyle().getIndention());
}
}
}
return width;
}
public void setTransform(AffineTransform f) {
this.transform = (f == null || f.isIdentity()) ? DEFAULT.transform : new AffineTransform(f);
updateDerivedTransforms();
update(ETRANSFORM);
}
private static AffineTransform extractRotation(
Point2D.Double pt, AffineTransform tx, boolean andTranslation) {
tx.deltaTransform(pt, pt);
AffineTransform rtx = AffineTransform.getRotateInstance(pt.x, pt.y);
try {
AffineTransform rtxi = rtx.createInverse();
double dx = tx.getTranslateX();
double dy = tx.getTranslateY();
tx.preConcatenate(rtxi);
if (andTranslation) {
if (dx != 0 || dy != 0) {
tx.setTransform(tx.getScaleX(), tx.getShearY(), tx.getShearX(), tx.getScaleY(), 0, 0);
rtx.setTransform(
rtx.getScaleX(), rtx.getShearY(), rtx.getShearX(), rtx.getScaleY(), dx, dy);
}
}
} catch (NoninvertibleTransformException e) {
return null;
}
return rtx;
}
