From e7a3f5b74d1f5a95390ee95b06371d184c1812f7 Mon Sep 17 00:00:00 2001 From: Krzysztof Kosi??ski Date: Thu, 13 Mar 2014 05:45:38 +0100 Subject: Provide a toggle in the document properties to optionally turn off antialiasing for display and export. Fixes a nearly 10 year old bug #170356 Fixed bugs: - https://launchpad.net/bugs/170356 (bzr r13144) --- src/display/drawing-group.cpp | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'src/display/drawing-group.cpp') diff --git a/src/display/drawing-group.cpp b/src/display/drawing-group.cpp index 38ace001f..c03e0f3ba 100644 --- a/src/display/drawing-group.cpp +++ b/src/display/drawing-group.cpp @@ -22,6 +22,7 @@ DrawingGroup::DrawingGroup(Drawing &drawing) : DrawingItem(drawing) , _style(NULL) , _child_transform(NULL) + , _uses_antialiasing(true) {} DrawingGroup::~DrawingGroup() @@ -47,6 +48,15 @@ DrawingGroup::setStyle(SPStyle *style) _setStyleCommon(_style, style); } +void +DrawingGroup::setAntialiasing(bool a) +{ + if (_uses_antialiasing != a) { + _uses_antialiasing = a; + _markForUpdate(STATE_ALL, true); + } +} + /** * Set additional transform for the group. * This is applied after the normal transform and mainly useful for @@ -100,6 +110,13 @@ DrawingGroup::_updateItem(Geom::IntRect const &area, UpdateContext const &ctx, u unsigned DrawingGroup::_renderItem(DrawingContext &dc, Geom::IntRect const &area, unsigned flags, DrawingItem *stop_at) { + DrawingContext::Save aa_save; + + if (!_uses_antialiasing) { + aa_save.save(dc); + cairo_set_antialias(dc.raw(), CAIRO_ANTIALIAS_NONE); + } + if (stop_at == NULL) { // normal rendering for (ChildrenList::iterator i = _children.begin(); i != _children.end(); ++i) { -- cgit v1.2.3