Method NWidgetLeaf

src/widget.cpp:2697–2804

* Nested leaf widget. * @param tp Type of leaf widget. * @param colour Colour of the leaf widget. * @param index Index of the widget. * @param data Data of the widget. * @param tip Tooltip of the widget. */

 * @param tip    Tooltip of the widget.
 */
NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, WidgetID index, const WidgetData &data, StringID tip) : NWidgetCore(tp, colour, index, 1, 1, data, tip)
{
	assert(index >= 0 || tp == WWT_LABEL || tp == WWT_TEXT || tp == WWT_CAPTION || tp == WWT_RESIZEBOX || tp == WWT_SHADEBOX || tp == WWT_DEFSIZEBOX || tp == WWT_DEBUGBOX || tp == WWT_STICKYBOX || tp == WWT_CLOSEBOX);
	this->min_x = 0;
	this->min_y = 0;
	this->SetResize(0, 0);

	switch (tp) {
		case WWT_EMPTY:
			if (colour != INVALID_COLOUR) [[unlikely]] throw std::runtime_error("WWT_EMPTY should not have a colour");
			break;

		case WWT_TEXT:
			if (colour != INVALID_COLOUR) [[unlikely]] throw std::runtime_error("WWT_TEXT should not have a colour");
			this->SetFill(0, 0);
			this->SetAlignment(SA_LEFT | SA_VERT_CENTER);
			break;

		case WWT_LABEL:
			if (colour != INVALID_COLOUR) [[unlikely]] throw std::runtime_error("WWT_LABEL should not have a colour");
			[[fallthrough]];

		case WWT_PUSHBTN:
		case WWT_IMGBTN:
		case WWT_PUSHIMGBTN:
		case WWT_IMGBTN_2:
		case WWT_TEXTBTN:
		case WWT_PUSHTXTBTN:
		case WWT_TEXTBTN_2:
		case WWT_IMGTEXTBTN:
		case WWT_PUSHIMGTEXTBTN:
		case WWT_BOOLBTN:
		case WWT_MATRIX:
		case NWID_BUTTON_DROPDOWN:
		case NWID_PUSHBUTTON_DROPDOWN:
			this->SetFill(0, 0);
			break;

		case WWT_ARROWBTN:
		case WWT_PUSHARROWBTN:
			this->SetFill(0, 0);
			this->SetAspect(WidgetDimensions::ASPECT_LEFT_RIGHT_BUTTON);
			break;

		case WWT_EDITBOX:
			this->SetFill(0, 0);
			break;

		case WWT_CAPTION:
			this->SetFill(1, 0);
			this->SetResize(1, 0);
			this->SetMinimalSize(0, WidgetDimensions::WD_CAPTION_HEIGHT);
			this->SetMinimalTextLines(1, WidgetDimensions::unscaled.captiontext.Vertical(), FS_NORMAL);
			this->SetToolTip(STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS);
			break;

		case WWT_STICKYBOX:
			this->SetFill(0, 0);