Beispiel #1
0
	Size GridLayout::layout(Component::Ptr component, const std::list<Component::Ptr>& children, const Size& innerSize)
	{
		unsigned int actualRows = rows;
		unsigned int actualColumns = columns;

		if (actualRows < 1 && actualColumns < 1) {
			actualRows = actualColumns = (unsigned int) ceil(sqrt(children.size()));
		} else if (actualRows < 1) {
			actualRows = (unsigned int) ceil((float) children.size() / (float) actualColumns);
		} else if (actualColumns < 1) {
			actualColumns = (unsigned int) ceil((float) children.size() / (float) actualRows);
		}

		Size childSize = innerSize.resize(-(actualColumns - 1) * hPadding, -(actualRows - 1) * vPadding).scale(1.0 / actualColumns,
			1.0 / actualRows);

		unsigned int row = 0;
		unsigned int column = 0;

		for (std::list<Component::Ptr>::const_iterator child = children.begin(); child != children.end(); ++child) {
			Component::Ptr childComp = *child;

			childComp->setSize(Size::min(childSize, childComp->getMaximumSize()));

			Point position(column * (childSize.width + hPadding), row * (childSize.height + vPadding));

			switch (defaultHAlignment) {
				default:
				case Component::ALIGN_LEFT:
					position = position.move(0, 0);
					break;

				case Component::ALIGN_CENTER:
					position = position.move((childSize.width - childComp->getWidth()) / 2, 0);
					break;

				case Component::ALIGN_RIGHT:
					position = position.move(childSize.width - childComp->getWidth(), 0);
					break;
			}

			switch (defaultVAlignment) {
				default:
				case Component::ALIGN_TOP:
					position = position.move(0, 0);
					break;

				case Component::ALIGN_CENTER:
					position = position.move(0, (childSize.height - childComp->getHeight()) / 2);
					break;

				case Component::ALIGN_BOTTOM:
					position = position.move(0, childSize.height - childComp->getHeight());
					break;
			}

			childComp->setPosition(position);

			if (order == LEFT_TO_RIGHT) {
				column += 1;
				if (column >= actualColumns) {
					column = 0;
					row += 1;
				}
			} else {
				row += 1;
				if (row >= actualRows) {
					row = 0;
					column += 1;
				}
			}
		}

		Size preferredChildSize = Size::ZERO;
		for (std::list<Component::Ptr>::const_iterator child = children.begin(); child != children.end(); ++child) {
			preferredChildSize = Size::max(preferredChildSize, (*child)->getPreferredSize());
		}

		return preferredChildSize.scale(actualColumns, actualRows).resize((actualColumns - 1) * hPadding, (actualRows - 1) * vPadding).grow(
			component->getInsets());
	}
Beispiel #2
0
	Size BorderLayout::layout(Component::Ptr component, const std::list<Component::Ptr>& children, const Size& innerSize)
	{
		Component::Ptr top;
		Component::Ptr bottom;
		Component::Ptr left;
		Component::Ptr right;
		Component::Ptr center;

		for (std::list<Component::Ptr>::const_iterator child = children.begin(); child != children.end(); ++child) {
			Component::Alignment alignment = (*child)->getAlignment();

			switch (alignment) {
				case Component::ALIGN_LEFT:
					if (left) {
						throw Exception("BorderLayout supports only one component with ALIGN_LEFT");
					}

					left = (*child);
					break;

				case Component::ALIGN_TOP:
					if (top) {
						throw Exception("BorderLayout supports only one component with ALIGN_TOP");
					}

					top = (*child);
					break;

				case Component::ALIGN_RIGHT:
					if (right) {
						throw Exception("BorderLayout supports only one component with ALIGN_RIGHT");
					}

					right = (*child);
					break;

				case Component::ALIGN_BOTTOM:
					if (bottom) {
						throw Exception("BorderLayout supports only one component with ALIGN_BOTTOM");
					}

					bottom = (*child);
					break;

				default:
				case Component::ALIGN_DEFAULT:
				case Component::ALIGN_CENTER:
					if (center) {
						throw Exception("BorderLayout supports only one component with ALIGN_CENTER/ALIGN_DEFAULT");
					}

					center = (*child);
					break;
			}
		}

		Insets centerInsets;

		if (top) {
			top->setWidth(innerSize.width);
			top->setHeight(top->getPreferredSize().height);
			top->setPosition(Point(0, 0));

			centerInsets.top += top->getHeight();
		}

		if (bottom) {
			bottom->setWidth(innerSize.width);
			bottom->setHeight(bottom->getPreferredSize().height);
			bottom->setPosition(Point(0, innerSize.height - bottom->getHeight()));

			centerInsets.bottom += bottom->getHeight();
		}

		if (left) {
			left->setHeight(innerSize.shrink(centerInsets).height);
			left->setWidth(left->getPreferredSize().width);
			left->setPosition(Point(0, centerInsets.top));

			centerInsets.left += left->getWidth();
		}

		if (right) {
			right->setHeight(innerSize.shrink(centerInsets).height);
			right->setWidth(right->getPreferredSize().width);
			right->setPosition(Point(innerSize.width - right->getWidth(), centerInsets.top));

			centerInsets.right += right->getWidth();
		}

		if (center) {
			center->setSize(innerSize.shrink(centerInsets));
			center->setPosition(centerInsets.getTopLeft());
		}

		Size preferred;

		if (left) {
			const Size& size = left->getPreferredSize();
			preferred.width += size.width;
			preferred.height = std::max(preferred.height, size.height);
		}

		if (center) {
			const Size& size = center->getPreferredSize();
			preferred.width += size.width;
			preferred.height = std::max(preferred.height, size.height);
		}

		if (right) {
			const Size& size = right->getPreferredSize();
			preferred.width += size.width;
			preferred.height = std::max(preferred.height, size.height);
		}

		if (top) {
			const Size& size = top->getPreferredSize();
			preferred.width = std::max(preferred.width, size.width);
			preferred.height += size.height;
		}

		if (bottom) {
			const Size& size = bottom->getPreferredSize();
			preferred.width = std::max(preferred.width, size.width);
			preferred.height += size.height;
		}

		return preferred.grow(component->getInsets());
	}