Method OnClick

src/linkgraph/linkgraph_gui.cpp:680–705

}

void LinkGraphLegendWindow::OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count)
{
	/* Check which button is clicked */
	if (IsInsideMM(widget, WID_LGL_COMPANY_FIRST, WID_LGL_COMPANY_LAST + 1)) {
		if (!this->IsWidgetDisabled(widget)) {
			this->ToggleWidgetLoweredState(widget);
			this->UpdateOverlayCompanies();
		}
	} else if (widget == WID_LGL_COMPANIES_ALL || widget == WID_LGL_COMPANIES_NONE) {
		for (CompanyID c = CompanyID::Begin(); c < MAX_COMPANIES; ++c) {
			if (this->IsWidgetDisabled(WID_LGL_COMPANY_FIRST + c)) continue;
			this->SetWidgetLoweredState(WID_LGL_COMPANY_FIRST + c, widget == WID_LGL_COMPANIES_ALL);
		}
		this->UpdateOverlayCompanies();
		this->SetDirty();
	} else if (IsInsideMM(widget, WID_LGL_CARGO_FIRST, WID_LGL_CARGO_LAST + 1)) {
		this->ToggleWidgetLoweredState(widget);
		this->UpdateOverlayCargoes();
	} else if (widget == WID_LGL_CARGOES_ALL || widget == WID_LGL_CARGOES_NONE) {
		for (uint c = 0; c < this->num_cargo; c++) {
			this->SetWidgetLoweredState(WID_LGL_CARGO_FIRST + c, widget == WID_LGL_CARGOES_ALL);
		}
		this->UpdateOverlayCargoes();
	}
	this->SetDirty();
}

/**
 * Invalidate the data of this window if the cargoes or companies have changed.