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Code Issues Activity Actions

GTabWidget: Allow putting the tabs on the bottom of the widget.

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They're still painted as if they are top tabs, but the subwidget placement
logic is all there.
This commit is contained in:
Andreas Kling 2019-07-28 17:39:04 +02:00
parent 59e122f8ba
commit 7f82e86fb8
2 changed files with 47 additions and 3 deletions
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40
Libraries/LibGUI/GTabWidget.cpp
View file

@ -45,7 +45,13 @@ void GTabWidget::resize_event(GResizeEvent& event)
Rect GTabWidget::child_rect_for_size(const Size& size) const
{
return { { container_padding(), bar_height() + container_padding() }, { size.width() - container_padding() * 2, size.height() - bar_height() - container_padding() * 2 } };
switch (m_tab_position) {
case TabPosition::Top:
return { { container_padding(), bar_height() + container_padding() }, { size.width() - container_padding() * 2, size.height() - bar_height() - container_padding() * 2 } };
case TabPosition::Bottom:
return { { container_padding(), container_padding() }, { size.width() - container_padding() * 2, size.height() - bar_height() - container_padding() * 2 } };
}
ASSERT_NOT_REACHED();
}
void GTabWidget::child_event(CChildEvent& event)
@ -73,7 +79,24 @@ void GTabWidget::child_event(CChildEvent& event)
Rect GTabWidget::bar_rect() const
{
return { 0, 0, width(), bar_height() };
switch (m_tab_position) {
case TabPosition::Top:
return { 0, 0, width(), bar_height() };
case TabPosition::Bottom:
return { 0, height() - bar_height(), width(), bar_height() };
}
ASSERT_NOT_REACHED();
}
Rect GTabWidget::container_rect() const
{
switch (m_tab_position) {
case TabPosition::Top:
return { 0, bar_height(), width(), height() - bar_height() };
case TabPosition::Bottom:
return { 0, 0, width(), height() - bar_height() };
}
ASSERT_NOT_REACHED();
}
void GTabWidget::paint_event(GPaintEvent& event)
@ -81,7 +104,7 @@ void GTabWidget::paint_event(GPaintEvent& event)
GPainter painter(*this);
painter.add_clip_rect(event.rect());
Rect container_rect { 0, bar_height(), width(), height() - bar_height() };
auto container_rect = this->container_rect();
auto padding_rect = container_rect;
for (int i = 0; i < container_padding(); ++i) {
painter.draw_rect(padding_rect, background_color());
@ -124,6 +147,7 @@ Rect GTabWidget::button_rect(int index) const
rect.move_by(-2, 0);
rect.set_width(rect.width() + 4);
}
rect.move_by(bar_rect().location());
return rect;
}
@ -174,3 +198,13 @@ void GTabWidget::update_bar()
invalidation_rect.set_height(invalidation_rect.height() + 1);
update(invalidation_rect);
}
void GTabWidget::set_tab_position(TabPosition tab_position)
{
if (m_tab_position == tab_position)
return;
m_tab_position = tab_position;
if (m_active_widget)
m_active_widget->set_relative_rect(child_rect_for_size(size()));
update();
}

10
Libraries/LibGUI/GTabWidget.h
View file

@ -5,9 +5,17 @@
class GTabWidget : public GWidget {
C_OBJECT(GTabWidget)
public:
enum TabPosition {
Top,
Bottom,
};
explicit GTabWidget(GWidget* parent);
virtual ~GTabWidget() override;
TabPosition tab_position() const { return m_tab_position; }
void set_tab_position(TabPosition);
GWidget* active_widget() const { return m_active_widget; }
void set_active_widget(GWidget*);
@ -28,6 +36,7 @@ private:
Rect child_rect_for_size(const Size&) const;
Rect button_rect(int index) const;
Rect bar_rect() const;
Rect container_rect() const;
void update_bar();
GWidget* m_active_widget { nullptr };
@ -39,5 +48,6 @@ private:
GWidget* widget { nullptr };
};
Vector<TabData> m_tabs;
TabPosition m_tab_position { TabPosition::Top };
int m_hovered_tab_index { -1 };
};