Method DrawParts

src/openboardview/BoardView.cpp:2440–2878

}

inline void BoardView::DrawParts(ImDrawList *draw) {
	// float psz = (float)m_pinDiameter * 0.5f * m_scale;
	double angle;
	double distance = 0;
	uint32_t color = m_colors.partOutlineColor;
	//	int rendered   = 0;
	char p0, p1; // first two characters of the part name, code-writing
	             // convenience more than anything else

	draw->ChannelsSetCurrent(kChannelPolylines);
	/*
	 * If a pin has been selected, we mask out the colour to
	 * enhance (relatively) the appearance of the pin(s)
	 */
	if (config.pinSelectMasks && ((m_pinSelected) || m_pinHighlighted.size())) {
		color = (m_colors.partOutlineColor & m_colors.selectedMaskParts) | m_colors.orMaskParts;
	}

	for (auto &part : m_board->Components()) {
		int pincount = 0;
		double min_x, min_y, max_x, max_y, aspect;
		std::vector<ImVec2> pva;
		std::array<ImVec2, 4> dbox; // default box, if there's nothing else claiming to render the part different.

		if (part->is_dummy()) continue;

		/*
		 *
		 * When we first load the board, the outline of each part isn't (yet) rendered
		 * or determined/calculated.  So, the first time we display the board we
		 * compute the outline and store it for later.
		 *
		 * This also sets the pin diameters too.
		 *
		 */
		if (!part->outline_done) { // should only need to do this once for most parts
			if (part->pins.size() == 0) {
				if (debug) fprintf(stderr, "WARNING: Drawing empty part %s\n", part->name.c_str());
				draw->AddRect(CoordToScreen(part->p1.x + DPIF(10), part->p1.y + DPIF(10)),
				              CoordToScreen(part->p2.x - DPIF(10), part->p2.y - DPIF(10)),
				              0xff0000ff);
				draw->AddText(
				    CoordToScreen(part->p1.x + DPIF(10), part->p1.y - DPIF(50)), m_colors.partTextColor, part->name.c_str());
				continue;
			}

			for (auto &pin : part->pins) {
				pincount++;

				// scale box around pins as a fallback, else either use polygon or convex
				// hull for better shape fidelity
				if (pincount == 1) {
					min_x = pin->position.x;
					min_y = pin->position.y;
					max_x = min_x;
					max_y = min_y;
				}