73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
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/**
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* @file Layout.cpp
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* @author apio (cloudapio.eu)
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* @brief Layout widgets to organize content.
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*
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* @copyright Copyright (c) 2023, the Luna authors.
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*
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*/
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#include <stdlib.h>
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#include <ui/Layout.h>
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namespace ui
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{
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HorizontalLayout::HorizontalLayout(AdjustHeight adjust_height, AdjustWidth adjust_width)
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: m_adjust_height(adjust_height), m_adjust_width(adjust_width)
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{
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}
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Result<EventResult> HorizontalLayout::handle_mousemove(Point position)
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{
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for (auto widget : m_widgets)
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{
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if (widget->rect().contains(position)) return widget->handle_mousemove(position);
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}
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return ui::EventResult::DidNotHandle;
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}
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Result<void> HorizontalLayout::draw(Canvas& canvas)
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{
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for (auto widget : m_widgets)
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{
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ui::Rect rect = { m_rect.relative(widget->rect().pos), widget->rect().width, widget->rect().height };
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auto subcanvas = canvas.subcanvas(rect);
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TRY(widget->draw(subcanvas));
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}
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return {};
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}
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Result<void> HorizontalLayout::add_widget(Widget& widget)
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{
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TRY(m_widgets.try_append(&widget));
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if (m_adjust_width == AdjustWidth::No)
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{
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widget.rect().pos.x = m_rect.pos.x + m_used_width;
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m_used_width += widget.rect().width;
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}
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else
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{
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int used_width = 0;
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div_t result = div(m_rect.width, (int)m_widgets.size());
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for (auto w : m_widgets)
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{
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w->rect().pos.x = m_rect.pos.x + used_width;
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w->rect().width = result.quot;
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used_width += result.quot;
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}
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m_widgets[m_widgets.size() - 1]->rect().width += result.rem;
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}
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widget.rect().pos.y = m_rect.pos.y;
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if (m_adjust_height == AdjustHeight::Yes) { widget.rect().height = m_rect.height; }
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widget.set_parent(this);
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return {};
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}
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}
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