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LibGUI: Add a way for GWidget subclasses to learn that the font changed

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Use this in GTextEditor to update the vertical scrolling step size so
we always scroll one-line-at-a-time.
This commit is contained in:
Andreas Kling 2019-09-01 12:26:35 +02:00
parent e7d15ccca4
commit 3e2e086011
4 changed files with 22 additions and 6 deletions
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11
Libraries/LibGUI/GWidget.cpp
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@ -14,8 +14,8 @@
GWidget::GWidget(GWidget* parent)
: CObject(parent, true)
, m_font(Font::default_font())
{
set_font(nullptr);
m_background_color = Color::WarmGray;
m_foreground_color = Color::Black;
}
@ -372,12 +372,17 @@ void GWidget::set_focus(bool focus)
}
}
void GWidget::set_font(Font* font)
void GWidget::set_font(const Font* font)
{
if (m_font.ptr() == font)
return;
if (!font)
m_font = Font::default_font();
else
m_font = font;
m_font = *font;
did_change_font();
update();
}