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	Commit message (Collapse)	Author	Age	Files	Lines
*	QGAL: Avoid false assertions due to floating point precision errors	Eduardo M. Fleury	2009-11-04	1	-1/+1
\| \| \| \| \|	Signed-off-by: Eduardo M. Fleury <eduardo.fleury@openbossa.org> Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org>
*	Compile on 64bit	Olivier Goffart	2009-10-28	1	-2/+2
\| \| \| \|	Reviewed-by: Jan-Arve
*	QGAL (QSimplex): Add constraints simplification	Eduardo M. Fleury	2009-10-26	1	-2/+5
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Now the simplex solver is able to remove fixed variables from its constraints as to improve its running time. The simplification consists of two actions that are done iteratively until no possible changes exist: 1st) Look for constraints of type Var == Constant Save constant as the trivial value of Var 2nd) Substitute known results in existing constraints Signed-off-by: Eduardo M. Fleury <eduardo.fleury@openbossa.org> Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org>
*	QGAL (QSimplex): Make deep copy of constraints inside QSimplex	Eduardo M. Fleury	2009-10-26	1	-7/+1
\| \| \| \| \| \| \| \| \|	The idea is to allow QSimplex solver to modify the constraints without breaking other parts of the code that rely on the original ones. Signed-off-by: Eduardo M. Fleury <eduardo.fleury@openbossa.org> Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org>
*	QGAL: Add QSimplexConstraint::toString() method for debugging	Eduardo M. Fleury	2009-10-26	1	-0/+23
\| \| \| \| \|	Signed-off-by: Eduardo M. Fleury <eduardo.fleury@openbossa.org> Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org>
*	Cosmetic fixes to the previous patches.	Jan-Arve Sæther	2009-10-07	1	-2/+2
\| \| \| \| \| \|	There is only one change in the actual code here, and it simply removes an unnecessary initialization of hasSize in the ctors of the composite anchors.
*	QSimplex: Remove overly conservative assertion	Eduardo M. Fleury	2009-10-06	1	-1/+25
\| \| \| \| \| \| \| \| \| \| \| \| \|	This assertion started failing after the addition of expanding state. After some investigation we felt that the assertion itself was too strong and would fail in some valid cases. The new assertion is formally right as it tests whether the simplex solver was able to satisfy the simplex constraints, _exactly_ what it is expected to do. Signed-off-by: Eduardo M. Fleury <eduardo.fleury@openbossa.org> Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org>
*	Implement hasConflicts().	Jan-Arve Sæther	2009-09-17	1	-1/+1
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*	Update license headers again.	Jason McDonald	2009-09-09	1	-4/+4
\| \| \| \|	Reviewed-by: Trust Me
*	Removing a few superfluous semicolons.	Alessandro Portale	2009-09-03	1	-2/+2
\| \| \| \|	Reviewed-By: TrustMe
*	Update tech preview license header for files that are new in 4.6.	Jason McDonald	2009-08-31	1	-13/+13
\| \| \| \|	Reviewed-by: Trust Me
*	Add missing license headers and header guards.	Jason McDonald	2009-08-21	1	-5/+44
\| \| \| \|	Reviewed-by: Trust Me
*	make the new anchor layout code compile with namespaces	hjk	2009-08-21	1	-1/+4
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*	QSimplex: new method solver, avoinding code replication	Anselmo Lacerda S. de Melo	2009-07-22	1	-0/+2
\| \| \| \| \| \| \| \| \| \| \|	The methods solveMin() and solveMax() had similar implementation, except by a "-1" multiplier. This commit includes a new private method called solver that is called by both solveMin() and solveMax(). A new enum 'solverFactor' was added admiting 2 values - Maximum (+1) and Minimum (-1). Signed-off-by: Anselmo Lacerda S. de Melo <anselmo.melo@openbossa.org>
*	QSimplex: Adding the Simplex solver for linear systems	Jesus Sanchez-Palencia	2009-07-22	1	-0/+120
	This implementation is based on the iterative algorithm presented in http://en.wikibooks.org/wiki/Operations_Research/The_Simplex_Method. It is capable of giving us the solution to any n variable LP model. Although we focused on QGraphicsAnchorLayout, the solver is general enough for being reused in any other Qt classes if needed. Signed-off-by: Anselmo Lacerda S. de Melo <anselmo.melo@openbossa.org> Signed-off-by: Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org> Signed-off-by: Eduardo M. Fleury <eduardo.fleury@openbossa.org> Signed-off-by: Jesus Sanchez-Palencia <jesus.palencia@openbossa.org>