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LibGUI: Add automatic scrolling to GlyphMapWidget

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Similar to TextEditor, GlyphMapWidget now automatically scrolls
when dragging a selection outside its boundaries.
This commit is contained in:
thankyouverycool 2022-03-19 10:44:44 -04:00 • committed by Andreas Kling
parent a26e71a137
commit 5c6326ae23
2 changed files with 18 additions and 8 deletions
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23
Userland/Libraries/LibGUI/GlyphMapWidget.cpp
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@ -54,6 +54,19 @@ GlyphMapWidget::GlyphMapWidget()
horizontal_scrollbar().set_visible(false);
did_change_font();
set_active_glyph('A');
m_automatic_selection_scroll_timer = add<Core::Timer>(20, [this] {
if (!m_in_drag_select) {
m_automatic_selection_scroll_timer->stop();
return;
}
auto glyph = glyph_at_position_clamped(m_last_mousemove_position);
m_selection.extend_to(glyph);
set_active_glyph(glyph, ShouldResetSelection::No);
scroll_to_glyph(glyph);
update();
});
m_automatic_selection_scroll_timer->stop();
}
void GlyphMapWidget::resize_event(ResizeEvent& event)
@ -168,6 +181,7 @@ void GlyphMapWidget::mousedown_event(MouseEvent& event)
if (event.shift())
m_selection.extend_to(glyph);
m_in_drag_select = true;
m_automatic_selection_scroll_timer->start();
set_active_glyph(glyph, event.shift() ? ShouldResetSelection::No : ShouldResetSelection::Yes);
}
}
@ -187,14 +201,7 @@ void GlyphMapWidget::mouseup_event(GUI::MouseEvent& event)
void GlyphMapWidget::mousemove_event(GUI::MouseEvent& event)
{
if (!m_in_drag_select)
return;
auto glyph = glyph_at_position_clamped(event.position());
m_selection.extend_to(glyph);
set_active_glyph(glyph, ShouldResetSelection::No);
scroll_to_glyph(glyph);
update();
m_last_mousemove_position = event.position();
}
void GlyphMapWidget::doubleclick_event(MouseEvent& event)