From 07d32ff9bade493f2549e8e90c32d11ba12b199d Mon Sep 17 00:00:00 2001 From: Diederik van Lierop Date: Sat, 31 Jan 2009 13:51:52 +0000 Subject: Store the snapper tolerances in the snap-preferences instead of in each snapper individualy. This way we don't have to update all snappers when the namedview has been updated (and we can get rid of the _update_snap_distances() call) (bzr r7208) --- src/display/canvas-grid.cpp | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'src/display/canvas-grid.cpp') diff --git a/src/display/canvas-grid.cpp b/src/display/canvas-grid.cpp index 0d5cabd8d..49a1211eb 100644 --- a/src/display/canvas-grid.cpp +++ b/src/display/canvas-grid.cpp @@ -953,6 +953,21 @@ CanvasXYGridSnapper::CanvasXYGridSnapper(CanvasXYGrid *grid, SnapManager *sm, Ge this->grid = grid; } +/** + * \return Snap tolerance (desktop coordinates); depends on current zoom so that it's always the same in screen pixels + */ +Geom::Coord CanvasXYGridSnapper::getSnapperTolerance() const +{ + SPDesktop const *dt = _snapmanager->getDesktop(); + double const zoom = dt ? dt->current_zoom() : 1; + return _snapmanager->snapprefs.getGridTolerance() / zoom; +} + +bool CanvasXYGridSnapper::getSnapperAlwaysSnap() const +{ + return _snapmanager->snapprefs.getGridTolerance() == 10000; //TODO: Replace this threshold of 10000 by a constant; see also tolerance-slider.cpp +} + LineSnapper::LineList CanvasXYGridSnapper::_getSnapLines(Geom::Point const &p) const { -- cgit v1.2.3