void TupGradientSelector::setStops(const QGradientStops &stops)
{
m_gradient.setStops(stops);
m_arrows.clear();
for (int i = 0; i < stops.count(); i++)
addArrow(calcArrowPos((int) (100 - (stops[i].first * 100)) ), stops[i].second);
update();
}
QGradientStops QQuickPathGradient::sortedGradientStops() const
{
QGradientStops result;
for (int i = 0; i < m_stops.count(); ++i) {
QQuickPathGradientStop *s = static_cast<QQuickPathGradientStop *>(m_stops[i]);
int j = 0;
while (j < result.count() && result[j].first < s->position())
++j;
result.insert(j, QGradientStop(s->position(), s->color()));
}
return result;
}
void SvgStyleParser::parseColorStops(QGradient *gradient, const KoXmlElement &e)
{
QGradientStops stops;
QColor c;
for (KoXmlNode n = e.firstChild(); !n.isNull(); n = n.nextSibling()) {
KoXmlElement stop = n.toElement();
if (stop.tagName() == "stop") {
float offset;
QString temp = stop.attribute("offset");
if (temp.contains('%')) {
temp = temp.left(temp.length() - 1);
offset = temp.toFloat() / 100.0;
} else
offset = temp.toFloat();
QString stopColorStr = stop.attribute("stop-color");
if (!stopColorStr.isEmpty()) {
if (stopColorStr == "inherit") {
stopColorStr = inheritedAttribute("stop-color", stop);
}
parseColor(c, stopColorStr);
}
else {
// try style attr
QString style = stop.attribute("style").simplified();
QStringList substyles = style.split(';', QString::SkipEmptyParts);
for (QStringList::Iterator it = substyles.begin(); it != substyles.end(); ++it) {
QStringList substyle = it->split(':');
QString command = substyle[0].trimmed();
QString params = substyle[1].trimmed();
if (command == "stop-color")
parseColor(c, params);
if (command == "stop-opacity")
c.setAlphaF(params.toDouble());
}
}
QString opacityStr = stop.attribute("stop-opacity");
if (!opacityStr.isEmpty()) {
if (opacityStr == "inherit") {
opacityStr = inheritedAttribute("stop-opacity", stop);
}
c.setAlphaF(opacityStr.toDouble());
}
stops.append(QPair<qreal, QColor>(offset, c));
}
}
if (stops.count())
gradient->setStops(stops);
}
QColor KarbonGradientHelper::colorAt(qreal position, const QGradientStops &stops)
{
if (! stops.count())
return QColor();
if (stops.count() == 1)
return stops.first().second;
QGradientStop prevStop(-1.0, QColor());
QGradientStop nextStop(2.0, QColor());
// find framing gradient stops
foreach(const QGradientStop & stop, stops) {
if (stop.first > prevStop.first && stop.first < position)
prevStop = stop;
if (stop.first < nextStop.first && stop.first > position)
nextStop = stop;
}
QColor theColor;
if (prevStop.first < 0.0) {
// new stop is before the first stop
theColor = nextStop.second;
} else if (nextStop.first > 1.0) {
// new stop is after the last stop
theColor = prevStop.second;
} else {
// linear interpolate colors between framing stops
QColor prevColor = prevStop.second, nextColor = nextStop.second;
qreal colorScale = (position - prevStop.first) / (nextStop.first - prevStop.first);
theColor.setRedF(prevColor.redF() + colorScale *(nextColor.redF() - prevColor.redF()));
theColor.setGreenF(prevColor.greenF() + colorScale *(nextColor.greenF() - prevColor.greenF()));
theColor.setBlueF(prevColor.blueF() + colorScale *(nextColor.blueF() - prevColor.blueF()));
theColor.setAlphaF(prevColor.alphaF() + colorScale *(nextColor.alphaF() - prevColor.alphaF()));
}
return theColor;
}
void Project::MatchColors(QAction *action)
{
if (action)
{
QString selectedDomainName = action->text();
Domain* selectedDomain = DetermineDomain(selectedDomainName);
if (selectedDomain && visibleDomain)
{
// Get the active shader types
ShaderType outlineType = selectedDomain->GetTerrainOutlineType();
ShaderType fillType = selectedDomain->GetTerrainFillType();
if (outlineType == SolidShaderType)
{
// Copy the solid outline color from the selected domain
QColor solidOutline = selectedDomain->GetTerrainSolidOutline();
visibleDomain->SetTerrainSolidOutline(solidOutline);
}
else if (outlineType == GradientShaderType)
{
// Copy the outline gradient from the selected domain
// Convert percentages in gradient stops to elevation values
// Convert these elevation values back into percentages in the range of the selected domain
float selectedRange[2] = {selectedDomain->GetTerrainMinZ(), selectedDomain->GetTerrainMaxZ()};
float currentRange[2] = {visibleDomain->GetTerrainMinZ(), visibleDomain->GetTerrainMaxZ()};
QGradientStops selectedGradientOutline = selectedDomain->GetTerrainGradientOutline();
QGradientStops newStopsOutline;
for (int i=0; i<selectedGradientOutline.count(); ++i)
{
QGradientStop currentStop = selectedGradientOutline[i];
float percentage = currentStop.first;
QColor color = currentStop.second;
float selectedValue = selectedRange[1] - percentage*(selectedRange[1] - selectedRange[0]);
if (selectedValue >= currentRange[0] && selectedValue <= currentRange[1])
{
QGradientStop newStop;
newStop.first = (currentRange[1] - selectedValue) / (currentRange[1] - currentRange[0]);
newStop.second = color;
newStopsOutline.append(newStop);
}
}
visibleDomain->SetTerrainGradientOutline(newStopsOutline);
}
if (fillType == SolidShaderType)
{
// Copy the solid fill color from the selected domain
QColor solidFill = selectedDomain->GetTerrainSolidFill();
visibleDomain->SetTerrainSolidFill(solidFill);
}
else if (fillType == GradientShaderType)
{
// Copy the fill gradient from the selected domain
// Convert percentages in gradient stops to elevation values
// Convert these elevation values back into percentages in the range of the selected domain
float selectedRange[2] = {selectedDomain->GetTerrainMinZ(), selectedDomain->GetTerrainMaxZ()};
float currentRange[2] = {visibleDomain->GetTerrainMinZ(), visibleDomain->GetTerrainMaxZ()};
QGradientStops selectedGradientFill = selectedDomain->GetTerrainGradientFill();
QGradientStops newStopsFill;
for (int i=0; i<selectedGradientFill.count(); ++i)
{
QGradientStop currentStop = selectedGradientFill[i];
float percentage = currentStop.first;
QColor color = currentStop.second;
float selectedValue = selectedRange[1] - percentage*(selectedRange[1] - selectedRange[0]);
if (selectedValue >= currentRange[0] && selectedValue <= currentRange[1])
{
QGradientStop newStop;
newStop.first = (currentRange[1] - selectedValue) / (currentRange[1] - currentRange[0]);
newStop.second = color;
newStopsFill.append(newStop);
}
}
visibleDomain->SetTerrainGradientFill(newStopsFill);
}
}
}
}