//-----------------------------------------------------------------------------
QImage FontHelper::drawCharacter(
const QChar value,
const QFont &font,
const QColor &foreground,
const QColor &background,
const int width,
const int height,
const bool antialiasing)
{
QFontMetrics fontMetrics(font);
QSize characterSize = FontHelper::getCharacterSize(fontMetrics, value);
int imageWidth = width;
int imageHeight = height;
if (width == 0 || height == 0)
{
imageWidth = characterSize.width();
imageHeight = characterSize.height();
}
QImage result;
{
// make image with transparent background
QPixmap transparentPixmap(imageWidth, imageHeight);
transparentPixmap.fill(Qt::transparent);
result = transparentPixmap.toImage().convertToFormat(QImage::Format_ARGB32);
}
QPainter painter(&result);
painter.setFont(font);
painter.setRenderHint(QPainter::Antialiasing, antialiasing);
painter.setRenderHint(QPainter::TextAntialiasing, antialiasing);
// fill image with specified background color
painter.fillRect(result.rect(), background);
painter.setPen(foreground);
painter.drawText((imageWidth / 2) - (characterSize.width() / 2),
fontMetrics.ascent(),//+4
QString(value));
return result;
}
void DiveEventItem::setupPixmap()
{
const IconMetrics& metrics = defaultIconMetrics();
int sz_bigger = metrics.sz_med + metrics.sz_small; // ex 40px
int sz_pix = sz_bigger/2; // ex 20px
#define EVENT_PIXMAP(PIX) QPixmap(QString(PIX)).scaled(sz_pix, sz_pix, Qt::KeepAspectRatio, Qt::SmoothTransformation)
#define EVENT_PIXMAP_BIGGER(PIX) QPixmap(QString(PIX)).scaled(sz_bigger, sz_bigger, Qt::KeepAspectRatio, Qt::SmoothTransformation)
if (same_string(internalEvent->name, "")) {
setPixmap(EVENT_PIXMAP(":warning"));
} else if (internalEvent->type == SAMPLE_EVENT_BOOKMARK) {
setPixmap(EVENT_PIXMAP(":flag"));
} else if (strcmp(internalEvent->name, "heading") == 0 ||
(same_string(internalEvent->name, "SP change") && internalEvent->time.seconds == 0)) {
// 2 cases:
// a) some dive computers have heading in every sample
// b) at t=0 we might have an "SP change" to indicate dive type
// in both cases we want to get the right data into the tooltip but don't want the visual clutter
// so set an "almost invisible" pixmap (a narrow but somewhat tall, basically transparent pixmap)
// that allows tooltips to work when we don't want to show a specific
// pixmap for an event, but want to show the event value in the tooltip
QPixmap transparentPixmap(4, 20);
transparentPixmap.fill(QColor::fromRgbF(1.0, 1.0, 1.0, 0.01));
setPixmap(transparentPixmap);
} else if (event_is_gaschange(internalEvent)) {
if (internalEvent->gas.mix.he.permille)
setPixmap(EVENT_PIXMAP_BIGGER(":gaschangeTrimix"));
else if (gasmix_is_air(&internalEvent->gas.mix))
setPixmap(EVENT_PIXMAP_BIGGER(":gaschangeAir"));
else
setPixmap(EVENT_PIXMAP_BIGGER(":gaschangeNitrox"));
} else {
setPixmap(EVENT_PIXMAP(":warning"));
}
#undef EVENT_PIXMAP
}
