Method DrawWidget

src/picker_gui.cpp:308–366

}

void PickerWindow::DrawWidget(const Rect &r, WidgetID widget) const
{
	switch (widget) {
		/* Class picker */
		case WID_PW_CLASS_LIST: {
			Rect ir = r.Shrink(WidgetDimensions::scaled.matrix);
			const int selected = this->callbacks.GetSelectedClass();
			const auto vscroll = this->GetScrollbar(WID_PW_CLASS_SCROLL);
			const int y_step = this->GetWidget<NWidgetResizeBase>(widget)->resize_y;
			auto [first, last] = vscroll->GetVisibleRangeIterators(this->classes);
			for (auto it = first; it != last; ++it) {
				DrawString(ir, this->callbacks.GetClassName(*it), *it == selected ? TC_WHITE : TC_BLACK);
				ir.top += y_step;
			}
			break;
		}

		/* Type picker */
		case WID_PW_TYPE_ITEM: {
			assert(this->GetWidget<NWidgetBase>(widget)->GetParentWidget<NWidgetMatrix>()->GetCurrentElement() < static_cast<int>(this->types.size()));
			const auto &item = this->types[this->GetWidget<NWidgetBase>(widget)->GetParentWidget<NWidgetMatrix>()->GetCurrentElement()];

			DrawPixelInfo tmp_dpi;
			Rect ir = r.Shrink(WidgetDimensions::scaled.bevel);
			if (FillDrawPixelInfo(&tmp_dpi, ir)) {
				AutoRestoreBackup dpi_backup(_cur_dpi, &tmp_dpi);
				int x = (ir.Width()  - ScaleSpriteTrad(PREVIEW_WIDTH)) / 2 + ScaleSpriteTrad(PREVIEW_LEFT);
				int y = (ir.Height() + ScaleSpriteTrad(this->preview_height)) / 2 - ScaleSpriteTrad(PREVIEW_BOTTOM);

				this->callbacks.DrawType(x, y, item.class_index, item.index);

				int by = ir.Height() - ScaleGUITrad(12);

				GrfSpecFeature feature = this->callbacks.GetFeature();
				/* Houses have recolours but not related to the company colour and other items depend on gamemode. */
				PaletteID palette = _game_mode != GM_NORMAL || feature == GSF_HOUSES ? PAL_NONE : GetCompanyPalette(_local_company);
				DrawBadgeColumn({0, by, ir.Width() - 1, ir.Height() - 1}, 0, this->badge_classes, this->callbacks.GetTypeBadges(item.class_index, item.index), feature, std::nullopt, palette);

				if (this->callbacks.saved.contains(item)) {
					DrawSprite(SPR_BLOT, PALETTE_TO_YELLOW, 0, 0);
				}
				if (this->callbacks.used.contains(item)) {
					DrawSprite(SPR_BLOT, PALETTE_TO_GREEN, ir.Width() - GetSpriteSize(SPR_BLOT).width, 0);
				}
			}

			if (!this->callbacks.IsTypeAvailable(item.class_index, item.index)) {
				GfxFillRect(ir, GetColourGradient(COLOUR_GREY, SHADE_DARKER), FILLRECT_CHECKER);
			}
			break;
		}

		case WID_PW_TYPE_NAME: {
			StringID str = this->callbacks.GetTypeName(this->callbacks.GetSelectedClass(), this->callbacks.GetSelectedType());
			if (str != INVALID_STRING_ID) DrawString(r, str, TC_GOLD, SA_CENTER);
			break;
		}
	}