drawingcursor.hpp
Go to the documentation of this file.
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Guido Tack <tack@gecode.org>
*
* Copyright:
* Guido Tack, 2006
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
namespace Gecode { namespace Gist {
inline void
DrawingCursor::moveUpwards(void) {
x -= node()->getOffset();
y -= Layout::dist_y;
NodeCursor<VisualNode>::moveUpwards();
}
forceinline bool
DrawingCursor::isClipped(void) {
if (clippingRect.width() == 0 && clippingRect.x() == 0
&& clippingRect.height() == 0 && clippingRect.y() == 0)
return false;
BoundingBox b = node()->getBoundingBox();
return (x + b.left > clippingRect.x() + clippingRect.width() ||
x + b.right < clippingRect.x() ||
y > clippingRect.y() + clippingRect.height() ||
y + (node()->getShape()->depth()+1) * Layout::dist_y <
clippingRect.y());
}
inline bool
DrawingCursor::mayMoveDownwards(void) {
return NodeCursor<VisualNode>::mayMoveDownwards() &&
!node()->isHidden() &&
node()->childrenLayoutIsDone() &&
!isClipped();
}
inline void
DrawingCursor::moveDownwards(void) {
NodeCursor<VisualNode>::moveDownwards();
x += node()->getOffset();
y += Layout::dist_y;
}
inline void
DrawingCursor::moveSidewards(void) {
x -= node()->getOffset();
NodeCursor<VisualNode>::moveSidewards();
x += node()->getOffset();
}
}}
// STATISTICS: gist-any
Gecode::Gist::BoundingBox
Bounding box.
Definition visualnode.hh:52
Gecode::Gist::DrawingCursor::moveDownwards
void moveDownwards(void)
Move cursor to child.
Definition drawingcursor.hpp:65
Gecode::Gist::DrawingCursor::mayMoveDownwards
bool mayMoveDownwards(void)
Test if cursor may move to child.
Definition drawingcursor.hpp:57
Gecode::Gist::DrawingCursor::moveUpwards
void moveUpwards(void)
Move cursor to parent.
Definition drawingcursor.hpp:37
Gecode::Gist::DrawingCursor::moveSidewards
void moveSidewards(void)
Move cursor to sibling.
Definition drawingcursor.hpp:72
Gecode::Gist::Layout::dist_y
static const int dist_y
Definition visualnode.hh:46
Gecode::Gist::NodeCursor::moveDownwards
void moveDownwards(void)
Move cursor to the first child node.
Definition nodecursor.hpp:95
Gecode::Gist::NodeCursor< VisualNode >::node
void node(VisualNode *n)
Definition nodecursor.hpp:62
Gecode::Gist::NodeCursor::moveSidewards
void moveSidewards(void)
Move cursor to the first sibling.
Definition nodecursor.hpp:109
Gecode::Gist::NodeCursor::moveUpwards
void moveUpwards(void)
Move cursor to the parent node.
Definition nodecursor.hpp:72
Gecode::Gist::NodeCursor::mayMoveDownwards
bool mayMoveDownwards(void)
Test if cursor may move to the first child node.
Definition nodecursor.hpp:89
Gecode::Gist
The Gecode Interactive Search Tool.
Gecode
Gecode toplevel namespace
forceinline
#define forceinline
Definition config.hpp:187