Method onPointClicked

libs/CCPluginAPI/src/ccColorScaleEditorWidget.cpp:596–645

}

void ccColorScaleEditorWidget::onPointClicked(double relativePos)
{
	assert(relativePos >= 0.0 && relativePos <= 1.0);
	assert(m_colorBarWidget && m_slidersWidget);

	if (!m_sliders)
		return;

	//look first if this position corresponds to an already existing slider
	const double maxDist = static_cast<double>(DEFAULT_SLIDER_SYMBOL_SIZE) / m_colorBarWidget->length();
	for (int i = 0; i < m_sliders->size(); ++i)
	{
		if (std::abs(m_sliders->element(i)->getRelativePos() - relativePos) < maxDist)
		{
			m_slidersWidget->select(i);
			return;
		}
	}

	//determine the new slider default color
	QColor color = Qt::white;
	if (m_sliders->size() > 1)
	{
		QLinearGradient gradient(0, 0, 256, 0);
		//fill gradient with sliders
		for (int i = 0; i < m_sliders->size(); i++)
		{
			ColorScaleElementSlider* slider = m_sliders->element(i);
			gradient.setColorAt(slider->getRelativePos(), slider->getColor());
		}
		//generate fake color bar (1 pixel high)
		QPixmap pix(256, 1);
		QPainter painter(&pix);
		painter.fillRect(pix.rect(), gradient);
		color = pix.toImage().pixel(static_cast<int>(relativePos * 255), 0);
	}
	ColorScaleElementSlider* slider = m_slidersWidget->addNewSlider(relativePos, color);

	if (slider)
	{
		int pos = m_sliders->indexOf(slider);
		if (pos >= 0)
		{
			m_slidersWidget->select(pos);
			onSliderModified(pos);
		}
	}

	update();
}

void ccColorScaleEditorWidget::onSliderModified(int sliderIndex)
{