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Avoid clipping wxCheckBox focus indicator on GTK3

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GtkCheckButton "outline" is drawn outside of widget's allocation with Adwaita theme
See #18353, #18043
This commit is contained in:
Paul Cornett
2019-03-12 10:11:20 -07:00
parent f163578c94
commit 993334c48a
1 changed files with 19 additions and 1 deletions
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20
src/gtk/window.cpp
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@@ -2220,10 +2220,28 @@ size_allocate(GtkWidget* WXUNUSED_IN_GTK2(widget), GtkAllocation* alloc, wxWindo
#if GTK_CHECK_VERSION(3,14,0)
if (wx_is_at_least_gtk3(14))
{
// Prevent under-allocated widgets from drawing outside their allocation
GtkAllocation clip;
gtk_widget_get_clip(widget, &clip);
if (clip.width > w || clip.height > h)
gtk_widget_set_clip(widget, alloc);
{
GtkStyleContext* sc = gtk_widget_get_style_context(widget);
int outline_offset, outline_width;
gtk_style_context_get(sc, gtk_style_context_get_state(sc),
"outline-offset", &outline_offset, "outline-width", &outline_width, NULL);
const int outline = outline_offset + outline_width;
GtkAllocation a = *alloc;
if (outline > 0)
{
// Allow enough room for focus indicator "outline", it's drawn
// outside of GtkCheckButton allocation with Adwaita theme
a.x -= outline;
a.y -= outline;
a.width += outline + outline;
a.height += outline + outline;
}
gtk_widget_set_clip(widget, &a);
}
}
#endif
if (win->m_wxwindow)