diff options
Diffstat (limited to 'src/ui/tool/node.cpp')
| -rw-r--r-- | src/ui/tool/node.cpp | 167 |
1 files changed, 69 insertions, 98 deletions
diff --git a/src/ui/tool/node.cpp b/src/ui/tool/node.cpp index ad22d95e6..1a26b5d55 100644 --- a/src/ui/tool/node.cpp +++ b/src/ui/tool/node.cpp @@ -1,7 +1,3 @@ -/** - * @file - * Editable node - implementation. - */ /* Authors: * Krzysztof Kosiński <tweenk.pl@gmail.com> * Jon A. Cruz <jon@joncruz.org> @@ -42,18 +38,21 @@ namespace Inkscape { namespace UI { -static SelectableControlPoint::ColorSet node_colors = { - { - {0xbfbfbf00, 0x000000ff}, // normal fill, stroke - {0xff000000, 0x000000ff}, // mouseover fill, stroke - {0xff000000, 0x000000ff} // clicked fill, stroke - }, +ControlPoint::ColorSet Node::node_colors = { + {0xbfbfbf00, 0x000000ff}, // normal fill, stroke + {0xff000000, 0x000000ff}, // mouseover fill, stroke + {0xff000000, 0x000000ff}, // clicked fill, stroke + // {0x0000ffff, 0x000000ff}, // normal fill, stroke when selected {0xff000000, 0x000000ff}, // mouseover fill, stroke when selected {0xff000000, 0x000000ff} // clicked fill, stroke when selected }; -static ControlPoint::ColorSet handle_colors = { +ControlPoint::ColorSet Handle::_handle_colors = { + {0xffffffff, 0x000000ff}, // normal fill, stroke + {0xff000000, 0x000000ff}, // mouseover fill, stroke + {0xff000000, 0x000000ff}, // clicked fill, stroke + // {0xffffffff, 0x000000ff}, // normal fill, stroke {0xff000000, 0x000000ff}, // mouseover fill, stroke {0xff000000, 0x000000ff} // clicked fill, stroke @@ -76,24 +75,20 @@ static Geom::Point direction(Geom::Point const &first, Geom::Point const &second return Geom::unit_vector(second - first); } -/** - * Control point of a cubic Bezier curve in a path. - * - * Handle keeps the node type invariant only for the opposite handle of the same node. - * Keeping the invariant on node moves is left to the %Node class. - */ Geom::Point Handle::_saved_other_pos(0, 0); + double Handle::_saved_length = 0.0; + bool Handle::_drag_out = false; -Handle::Handle(NodeSharedData const &data, Geom::Point const &initial_pos, Node *parent) - : ControlPoint(data.desktop, initial_pos, SP_ANCHOR_CENTER, SP_CTRL_SHAPE_CIRCLE, 7.0, - &handle_colors, data.handle_group) - , _parent(parent) - , _degenerate(true) +Handle::Handle(NodeSharedData const &data, Geom::Point const &initial_pos, Node *parent) : + ControlPoint(data.desktop, initial_pos, SP_ANCHOR_CENTER, + SP_CTRL_SHAPE_CIRCLE, 7.0, + _handle_colors, data.handle_group), + _parent(parent), + _handle_line(ControlManager::getManager().createControlLine(data.handle_line_group)), + _degenerate(true) { - _cset = &handle_colors; - _handle_line = ControlManager::getManager().createControlLine(data.handle_line_group); setVisible(false); } @@ -389,10 +384,18 @@ bool Handle::clicked(GdkEventButton *event) return true; } +Handle const *Handle::other() const +{ + return const_cast<Handle *>(this)->other(); +} + Handle *Handle::other() { - if (this == &_parent->_front) return &_parent->_back; - return &_parent->_front; + if (this == &_parent->_front) { + return &_parent->_back; + } else { + return &_parent->_front; + } } static double snap_increment_degrees() { @@ -401,7 +404,7 @@ static double snap_increment_degrees() { return 180.0 / snaps; } -Glib::ustring Handle::_getTip(unsigned state) +Glib::ustring Handle::_getTip(unsigned state) const { char const *more; bool can_shift_rotate = _parent->type() == NODE_CUSP && !other()->isDegenerate(); @@ -459,7 +462,7 @@ Glib::ustring Handle::_getTip(unsigned state) } } -Glib::ustring Handle::_getDragTip(GdkEventMotion */*event*/) +Glib::ustring Handle::_getDragTip(GdkEventMotion */*event*/) const { Geom::Point dist = position() - _last_drag_origin(); // report angle in mathematical convention @@ -477,34 +480,48 @@ Glib::ustring Handle::_getDragTip(GdkEventMotion */*event*/) return ret; } -/** - * Curve endpoint in an editable path. - * - * The method move() keeps node type invariants during translations. - */ -Node::Node(NodeSharedData const &data, Geom::Point const &initial_pos) - : SelectableControlPoint(data.desktop, initial_pos, SP_ANCHOR_CENTER, - SP_CTRL_SHAPE_DIAMOND, 9.0, *data.selection, &node_colors, data.node_group) - , _front(data, initial_pos, this) - , _back(data, initial_pos, this) - , _type(NODE_CUSP) - , _handles_shown(false) +Node::Node(NodeSharedData const &data, Geom::Point const &initial_pos) : + SelectableControlPoint(data.desktop, initial_pos, SP_ANCHOR_CENTER, + SP_CTRL_SHAPE_DIAMOND, 9.0, + *data.selection, + node_colors, data.node_group), + _front(data, initial_pos, this), + _back(data, initial_pos, this), + _type(NODE_CUSP), + _handles_shown(false) { // NOTE we do not set type here, because the handles are still degenerate } +Node const *Node::_next() const +{ + return const_cast<Node*>(this)->_next(); +} + // NOTE: not using iterators won't make this much quicker because iterators can be 100% inlined. Node *Node::_next() { NodeList::iterator n = NodeList::get_iterator(this).next(); - if (n) return n.ptr(); - return NULL; + if (n) { + return n.ptr(); + } else { + return NULL; + } } + +Node const *Node::_prev() const +{ + return const_cast<Node *>(this)->_prev(); +} + Node *Node::_prev() { NodeList::iterator p = NodeList::get_iterator(this).prev(); - if (p) return p.ptr(); - return NULL; + if (p) { + return p.ptr(); + } else { + return NULL; + } } void Node::move(Geom::Point const &new_pos) @@ -533,7 +550,7 @@ void Node::transform(Geom::Affine const &m) _fixNeighbors(old_pos, position()); } -Geom::Rect Node::bounds() +Geom::Rect Node::bounds() const { Geom::Rect b(position(), position()); b.expandTo(_front.position()); @@ -614,13 +631,6 @@ void Node::showHandles(bool v) if (!_back.isDegenerate()) _back.setVisible(v); } -/** Sets the node type and optionally restores the invariants associated with the given type. - * @param type The type to set - * @param update_handles Whether to restore invariants associated with the given type. - * Passing false is useful e.g. wen initially creating the path, - * and when making cusp nodes during some node algorithms. - * Pass true when used in response to an UI node type button. - */ void Node::setType(NodeType type, bool update_handles) { if (type == NODE_PICK_BEST) { @@ -717,8 +727,6 @@ void Node::setType(NodeType type, bool update_handles) updateState(); } -/** Pick the best type for this node, based on the position of its handles. - * This is what assigns types to nodes created using the pen tool. */ void Node::pickBestType() { _type = NODE_CUSP; @@ -768,13 +776,11 @@ void Node::pickBestType() updateState(); } -bool Node::isEndNode() +bool Node::isEndNode() const { return !_prev() || !_next(); } -/** Move the node to the bottom of its canvas group. Useful for node break, to ensure that - * the selected nodes are above the unselected ones. */ void Node::sink() { sp_canvas_item_move_to_z(_canvas_item, 0); @@ -791,7 +797,6 @@ NodeType Node::parse_nodetype(char x) } } -/** Customized event handler to catch scroll events needed for selection grow/shrink. */ bool Node::_eventHandler(SPEventContext *event_context, GdkEvent *event) { int dir = 0; @@ -836,8 +841,6 @@ bool Node::_eventHandler(SPEventContext *event_context, GdkEvent *event) return ControlPoint::_eventHandler(event_context, event); } -/** Select or deselect a node in this node's subpath based on its path distance from this node. - * @param dir If negative, shrink selection by one node; if positive, grow by one node */ void Node::_linearGrow(int dir) { // Interestingly, we do not need any help from PathManipulator when doing linear grow. @@ -1140,13 +1143,13 @@ bool Node::clicked(GdkEventButton *event) return SelectableControlPoint::clicked(event); } -Inkscape::SnapSourceType Node::_snapSourceType() +Inkscape::SnapSourceType Node::_snapSourceType() const { if (_type == NODE_SMOOTH || _type == NODE_AUTO) return SNAPSOURCE_NODE_SMOOTH; return SNAPSOURCE_NODE_CUSP; } -Inkscape::SnapTargetType Node::_snapTargetType() +Inkscape::SnapTargetType Node::_snapTargetType() const { if (_type == NODE_SMOOTH || _type == NODE_AUTO) return SNAPTARGET_NODE_SMOOTH; @@ -1158,10 +1161,6 @@ Inkscape::SnapCandidatePoint Node::snapCandidatePoint() return SnapCandidatePoint(position(), _snapSourceType(), _snapTargetType()); } -/** - * Gets the handle that faces the given adjacent node. - * Will abort with error if the given node is not adjacent. - */ Handle *Node::handleToward(Node *to) { if (_next() == to) { @@ -1173,10 +1172,6 @@ Handle *Node::handleToward(Node *to) g_error("Node::handleToward(): second node is not adjacent!"); } -/** - * Gets the node in the direction of the given handle. - * Will abort with error if the handle doesn't belong to this node. - */ Node *Node::nodeToward(Handle *dir) { if (front() == dir) { @@ -1188,10 +1183,6 @@ Node *Node::nodeToward(Handle *dir) g_error("Node::nodeToward(): handle is not a child of this node!"); } -/** - * Gets the handle that goes in the direction opposite to the given adjacent node. - * Will abort with error if the given node is not adjacent. - */ Handle *Node::handleAwayFrom(Node *to) { if (_next() == to) { @@ -1203,10 +1194,6 @@ Handle *Node::handleAwayFrom(Node *to) g_error("Node::handleAwayFrom(): second node is not adjacent!"); } -/** - * Gets the node in the direction opposite to the given handle. - * Will abort with error if the handle doesn't belong to this node. - */ Node *Node::nodeAwayFrom(Handle *h) { if (front() == h) { @@ -1218,7 +1205,7 @@ Node *Node::nodeAwayFrom(Handle *h) g_error("Node::nodeAwayFrom(): handle is not a child of this node!"); } -Glib::ustring Node::_getTip(unsigned state) +Glib::ustring Node::_getTip(unsigned state) const { if (state_held_shift(state)) { bool can_drag_out = (_next() && _front.isDegenerate()) || (_prev() && _back.isDegenerate()); @@ -1260,7 +1247,7 @@ Glib::ustring Node::_getTip(unsigned state) "<b>%s</b>: drag to shape the path, click to select only this node (more: Shift, Ctrl, Alt)"), nodetype); } -Glib::ustring Node::_getDragTip(GdkEventMotion */*event*/) +Glib::ustring Node::_getDragTip(GdkEventMotion */*event*/) const { Geom::Point dist = position() - _last_drag_origin(); GString *x = SP_PX_TO_METRIC_STRING(dist[Geom::X], _desktop->namedview->getDefaultMetric()); @@ -1283,7 +1270,6 @@ char const *Node::node_type_to_localized_string(NodeType type) } } -/** Determine whether two nodes are joined by a linear segment. */ bool Node::_is_line_segment(Node *first, Node *second) { if (!first || !second) return false; @@ -1306,13 +1292,6 @@ SPCtrlShapeType Node::_node_type_to_shape(NodeType type) } -/** - * An editable list of nodes representing a subpath. - * - * It can optionally be cyclic to represent a closed path. - * The list has iterators that act like plain node iterators, but can also be used - * to obtain shared pointers to nodes. - */ NodeList::NodeList(SubpathList &splist) : _list(splist) , _closed(false) @@ -1344,8 +1323,6 @@ bool NodeList::closed() return _closed; } -/** A subpath is degenerate if it has no segments - either one node in an open path - * or no nodes in a closed path */ bool NodeList::degenerate() { return closed() ? empty() : ++begin() == end(); @@ -1362,10 +1339,9 @@ NodeList::iterator NodeList::before(double t, double *fracpart) return ret; } -// insert a node before i -NodeList::iterator NodeList::insert(iterator i, Node *x) +NodeList::iterator NodeList::insert(iterator pos, Node *x) { - ListNode *ins = i._node; + ListNode *ins = pos._node; x->ln_next = ins; x->ln_prev = ins->ln_prev; ins->ln_prev->ln_next = x; @@ -1471,11 +1447,6 @@ NodeList &NodeList::get(iterator const &i) { } -/** - * @class SubpathList - * Editable path composed of one or more subpaths. - */ - } // namespace UI } // namespace Inkscape |