/**
* This function is called when the visual item was positioned in the
* backpack.
*/
void WeaponBackpackItem::updated(void)
{
if(!mText) return;
// here we have to put the number of units if we can
Ogre::String str;
getAmmoText(str);
if(str.empty()){
// hide the text?
return;
}
// set the text
mText->setCaption(str);
positionText();
}
bool OsmAnd::TextRasterizer_P::rasterize(
SkBitmap& targetBitmap,
const QString& text_,
const Style& style,
QVector<SkScalar>* const outGlyphWidths,
float* const outExtraTopSpace,
float* const outExtraBottomSpace,
float* const outLineSpacing) const
{
// Prepare text and break by lines
const auto text = ICU::convertToVisualOrder(text_);
const auto lineRefs = style.wrapWidth > 0
? ICU::getTextWrappingRefs(text, style.wrapWidth)
: (QVector<QStringRef>() << QStringRef(&text));
// Obtain paints from lines and style
auto paints = evaluatePaints(lineRefs, style);
// Measure text
SkScalar maxLineWidthInPixels = 0;
measureText(paints, maxLineWidthInPixels);
// Measure glyphs (if requested and there's no halo)
if (outGlyphWidths && style.haloRadius == 0)
measureGlyphs(paints, *outGlyphWidths);
// Process halo if exists
if (style.haloRadius > 0)
{
measureHalo(style, paints);
if (outGlyphWidths)
measureHaloGlyphs(style, paints, *outGlyphWidths);
}
// Set output line spacing
if (outLineSpacing)
{
float lineSpacing = 0.0f;
for (const auto& linePaint : constOf(paints))
lineSpacing = qMax(lineSpacing, linePaint.maxFontLineSpacing);
*outLineSpacing = lineSpacing;
}
// Calculate extra top and bottom space
if (outExtraTopSpace)
{
SkScalar maxTop = 0;
for (const auto& linePaint : constOf(paints))
maxTop = qMax(maxTop, linePaint.maxFontTop);
*outExtraTopSpace = qMax(0.0f, maxTop - paints.first().maxFontTop);
}
if (outExtraBottomSpace)
{
SkScalar maxBottom = 0;
for (const auto& linePaint : constOf(paints))
maxBottom = qMax(maxBottom, linePaint.maxFontBottom);
*outExtraBottomSpace = qMax(0.0f, maxBottom - paints.last().maxFontBottom);
}
// Position text horizontally and vertically
const auto textArea = positionText(paints, maxLineWidthInPixels, style.textAlignment);
// Calculate bitmap size
auto bitmapWidth = qCeil(textArea.width());
auto bitmapHeight = qCeil(textArea.height());
if (style.backgroundBitmap)
{
// Clear extra spacing
if (outExtraTopSpace)
*outExtraTopSpace = 0.0f;
if (outExtraBottomSpace)
*outExtraBottomSpace = 0.0f;
// Enlarge bitmap if shield is larger than text
bitmapWidth = qMax(bitmapWidth, style.backgroundBitmap->width());
bitmapHeight = qMax(bitmapHeight, style.backgroundBitmap->height());
// Shift text area to proper position in a larger
const auto offset = SkPoint::Make(
(bitmapWidth - qCeil(textArea.width())) / 2.0f,
(bitmapHeight - qCeil(textArea.height())) / 2.0f);
for (auto& linePaint : paints)
{
for (auto& textPaint : linePaint.textPaints)
textPaint.positionedBounds.offset(offset);
}
}
// Check if bitmap size was successfully calculated
if (bitmapWidth <= 0 || bitmapHeight <= 0)
{
LogPrintf(LogSeverityLevel::Error,
"Failed to rasterize text '%s': resulting bitmap size %dx%d is invalid",
qPrintable(text),
bitmapWidth,
bitmapHeight);
return false;
}
// Create a bitmap that will be hold entire symbol (if target is empty)
if (targetBitmap.isNull())
{
if (!targetBitmap.tryAllocPixels(SkImageInfo::MakeN32Premul(bitmapWidth, bitmapHeight)))
{
LogPrintf(LogSeverityLevel::Error,
"Failed to allocate bitmap of size %dx%d",
qPrintable(text),
bitmapWidth,
bitmapHeight);
return false;
}
targetBitmap.eraseColor(SK_ColorTRANSPARENT);
}
SkBitmapDevice target(targetBitmap);
SkCanvas canvas(&target);
// If there is background this text, rasterize it also
if (style.backgroundBitmap)
{
canvas.drawBitmap(*style.backgroundBitmap,
(bitmapWidth - style.backgroundBitmap->width()) / 2.0f,
(bitmapHeight - style.backgroundBitmap->height()) / 2.0f,
nullptr);
}
// Rasterize text halo first (if enabled)
if (style.haloRadius > 0)
{
for (const auto& linePaint : paints)
{
for (const auto& textPaint : linePaint.textPaints)
{
const auto haloPaint = getHaloPaint(textPaint.paint, style);
canvas.drawText(
textPaint.text.constData(), textPaint.text.length()*sizeof(QChar),
textPaint.positionedBounds.left(), textPaint.positionedBounds.top(),
haloPaint);
}
}
}
// Rasterize text itself
for (const auto& linePaint : paints)
{
for (const auto& textPaint : linePaint.textPaints)
{
canvas.drawText(
textPaint.text.constData(), textPaint.text.length()*sizeof(QChar),
textPaint.positionedBounds.left(), textPaint.positionedBounds.top(),
textPaint.paint);
}
}
canvas.flush();
return true;
}
