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https://github.com/RGBCube/serenity
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LibGUI: Convert indexes to size_t and use Optional in TabWidget
Previously it was using int for indexes and using the -1 magic value.
Supersedes b9d51b8601
This commit is contained in:
Luke
Andreas Kling
parent
b9d51b8601
commit
3ec4ad8a73
2 changed files with 45 additions and 37 deletions
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@ -202,7 +202,7 @@ void TabWidget::paint_event(PaintEvent& event)
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for (size_t i = 0; i < m_tabs.size(); ++i) {
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if (m_tabs[i].widget == m_active_widget)
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continue;
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bool hovered = static_cast<int>(i) == m_hovered_tab_index;
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bool hovered = m_hovered_tab_index.has_value() && i == m_hovered_tab_index.value();
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auto button_rect = this->button_rect(i);
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Gfx::StylePainter::paint_tab_button(painter, button_rect, palette(), false, hovered, m_tabs[i].widget->is_enabled(), m_tab_position == TabPosition::Top);
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auto tab_button_content_rect = button_rect.translated(4, m_tab_position == TabPosition::Top ? 1 : 0);
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@ -221,7 +221,7 @@ void TabWidget::paint_event(PaintEvent& event)
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for (size_t i = 0; i < m_tabs.size(); ++i) {
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if (m_tabs[i].widget != m_active_widget)
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continue;
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bool hovered = static_cast<int>(i) == m_hovered_tab_index;
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bool hovered = m_hovered_tab_index.has_value() && i == m_hovered_tab_index.value();
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auto button_rect = this->button_rect(i);
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Gfx::StylePainter::paint_tab_button(painter, button_rect, palette(), true, hovered, m_tabs[i].widget->is_enabled(), m_tab_position == TabPosition::Top);
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auto tab_button_content_rect = button_rect.translated(4, m_tab_position == TabPosition::Top ? 1 : 0);
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@ -254,8 +254,8 @@ void TabWidget::paint_event(PaintEvent& event)
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return;
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for (size_t i = 0; i < m_tabs.size(); ++i) {
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bool hovered_close_button = static_cast<int>(i) == m_hovered_close_button_index;
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bool pressed_close_button = static_cast<int>(i) == m_pressed_close_button_index;
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bool hovered_close_button = m_hovered_close_button_index.has_value() && i == m_hovered_close_button_index.value();
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bool pressed_close_button = m_pressed_close_button_index.has_value() && i == m_pressed_close_button_index.value();
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auto close_button_rect = this->close_button_rect(i);
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if (hovered_close_button)
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@ -287,12 +287,12 @@ void TabWidget::set_bar_visible(bool bar_visible)
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update_bar();
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}
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Gfx::IntRect TabWidget::button_rect(int index) const
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Gfx::IntRect TabWidget::button_rect(size_t index) const
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{
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int x_offset = bar_margin();
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int close_button_offset = m_close_button_enabled ? 16 : 0;
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for (int i = 0; i < index; ++i) {
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for (size_t i = 0; i < index; ++i) {
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auto tab_width = m_uniform_tabs ? uniform_tab_width() : m_tabs[i].width(font()) + close_button_offset;
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x_offset += tab_width;
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}
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@ -308,7 +308,7 @@ Gfx::IntRect TabWidget::button_rect(int index) const
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return rect;
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}
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Gfx::IntRect TabWidget::close_button_rect(int index) const
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Gfx::IntRect TabWidget::close_button_rect(size_t index) const
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{
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auto rect = button_rect(index);
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Gfx::IntRect close_button_rect { 0, 0, 12, 12 };
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@ -358,26 +358,26 @@ void TabWidget::mouseup_event(MouseEvent& event)
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if (event.button() != MouseButton::Left)
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return;
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if (!m_close_button_enabled || m_pressed_close_button_index == -1)
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if (!m_close_button_enabled || !m_pressed_close_button_index.has_value())
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return;
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auto close_button_rect = this->close_button_rect(m_pressed_close_button_index);
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m_pressed_close_button_index = -1;
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auto close_button_rect = this->close_button_rect(m_pressed_close_button_index.value());
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if (close_button_rect.contains(event.position())) {
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auto* widget = m_tabs[m_pressed_close_button_index].widget;
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auto* widget = m_tabs[m_pressed_close_button_index.value()].widget;
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deferred_invoke([this, widget](auto&) {
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if (on_tab_close_click && widget)
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on_tab_close_click(*widget);
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});
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return;
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}
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m_pressed_close_button_index = {};
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}
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void TabWidget::mousemove_event(MouseEvent& event)
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{
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int hovered_tab = -1;
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int hovered_close_button = -1;
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Optional<size_t> hovered_tab = {};
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Optional<size_t> hovered_close_button = {};
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for (size_t i = 0; i < m_tabs.size(); ++i) {
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auto button_rect = this->button_rect(i);
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@ -392,7 +392,7 @@ void TabWidget::mousemove_event(MouseEvent& event)
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if (m_tabs[i].widget == m_active_widget)
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break;
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}
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if (hovered_tab == m_hovered_tab_index && hovered_close_button == m_hovered_close_button_index)
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if (!hovered_tab.has_value() && !hovered_close_button.has_value())
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return;
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m_hovered_tab_index = hovered_tab;
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m_hovered_close_button_index = hovered_close_button;
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@ -401,18 +401,20 @@ void TabWidget::mousemove_event(MouseEvent& event)
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void TabWidget::leave_event(Core::Event&)
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{
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if (m_hovered_tab_index != -1 || m_hovered_close_button_index != -1) {
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m_hovered_tab_index = -1;
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m_hovered_close_button_index = -1;
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if (m_hovered_tab_index.has_value() || m_hovered_close_button_index.has_value()) {
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m_hovered_tab_index = {};
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m_hovered_close_button_index = {};
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update_bar();
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}
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}
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void TabWidget::update_bar()
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{
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if (m_tabs.is_empty())
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return;
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auto invalidation_rect = bar_rect();
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invalidation_rect.set_height(invalidation_rect.height() + 1);
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invalidation_rect.set_right(button_rect(static_cast<int>(m_tabs.size() - 1)).right());
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invalidation_rect.set_right(button_rect(m_tabs.size() - 1).right());
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update(invalidation_rect);
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}
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@ -426,13 +428,13 @@ void TabWidget::set_tab_position(TabPosition tab_position)
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update();
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}
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int TabWidget::active_tab_index() const
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Optional<size_t> TabWidget::active_tab_index() const
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{
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for (size_t i = 0; i < m_tabs.size(); i++) {
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if (m_tabs.at(i).widget == m_active_widget)
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return i;
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}
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return -1;
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return {};
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}
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void TabWidget::set_tab_title(Widget& tab, const StringView& title)
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@ -463,22 +465,28 @@ void TabWidget::activate_next_tab()
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{
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if (m_tabs.size() <= 1)
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return;
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int index = active_tab_index();
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++index;
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if (index >= (int)m_tabs.size())
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index = 0;
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set_active_widget(m_tabs.at(index).widget);
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auto index = active_tab_index();
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if (!index.has_value())
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return;
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auto next_index = index.value() + 1;
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if (next_index >= m_tabs.size())
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next_index = 0;
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set_active_widget(m_tabs.at(next_index).widget);
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}
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void TabWidget::activate_previous_tab()
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{
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if (m_tabs.size() <= 1)
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return;
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int index = active_tab_index();
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--index;
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if (index < 0)
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index = m_tabs.size() - 1;
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set_active_widget(m_tabs.at(index).widget);
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auto index = active_tab_index();
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if (!index.has_value())
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return;
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size_t previous_index = 0;
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if (index.value() == 0)
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previous_index = m_tabs.size() - 1;
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else
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previous_index = index.value() - 1;
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set_active_widget(m_tabs.at(previous_index).widget);
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}
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void TabWidget::keydown_event(KeyEvent& event)
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