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drawingcursor.hpp
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/* 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.
*
*/
inline void
DrawingCursor::moveUpwards(void) {
x -= node()->getOffset();
y -= Layout::dist_y;
NodeCursor::moveUpwards();
}
inline 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::mayMoveDownwards() &&
!node()->isHidden() &&
node()->childrenLayoutIsDone() &&
!isClipped();
}
inline void
DrawingCursor::moveDownwards(void) {
NodeCursor::moveDownwards();
x += node()->getOffset();
y += Layout::dist_y;
}
inline void
DrawingCursor::moveSidewards(void) {
x -= node()->getOffset();
NodeCursor::moveSidewards();
x += node()->getOffset();
}