* Copyright 2012, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _SHARED_SOLVER_H
#define _SHARED_SOLVER_H
#include <set>
#include <Archivable.h>
#include <LayoutContext.h>
#include <ObjectList.h>
#include <Referenceable.h>
#include "LinearSpec.h"
class BMessage;
namespace BALM {
class BALMLayout;
class Area;
};
using BALM::BALMLayout;
using BALM::Area;
namespace BPrivate {
class SharedSolver : BLayoutContextListener, public BReferenceable,
public BArchivable {
public:
SharedSolver(BMessage* archive);
SharedSolver();
~SharedSolver();
void Invalidate(bool children);
LinearSpec* Solver() const;
ResultType Result();
void RegisterLayout(BALMLayout* layout);
void LayoutLeaving(const BALMLayout* layout);
ResultType ValidateMinSize();
ResultType ValidateMaxSize();
ResultType ValidatePreferredSize();
ResultType ValidateLayout(BLayoutContext* context);
status_t AddFriendReferences(const BALMLayout* layout,
BMessage* archive, const char* field);
status_t Archive(BMessage* archive, bool deep) const;
status_t AllArchived(BMessage* archive) const;
status_t AllUnarchived(const BMessage* archive);
static BArchivable* Instantiate(BMessage* archive);
private:
struct MinSizeValidator;
struct MaxSizeValidator;
struct PreferredSizeValidator;
friend struct MinSizeValidator;
friend struct MaxSizeValidator;
friend struct PreferredSizeValidator;
static void _AddConstraintsToSet(Area* area,
std::set<const Constraint*>& constraints);
static status_t _AddConstraintToArchive(Constraint* constraint,
BMessage* archive);
status_t _InstantiateConstraint(const void* rawData,
ssize_t numBytes, BUnarchiver& unarchiver);
void SetMaxSize(BALM::BALMLayout* layout,
const BSize& max);
void SetMinSize(BALM::BALMLayout* layout,
const BSize& min);
void SetPreferredSize(BALM::BALMLayout* layout,
const BSize& preferred);
virtual void LayoutContextLeft(BLayoutContext* context);
void _UpdateConstraints();
void _SetContext(BLayoutContext* context);
bool _IsMinSet();
bool _IsMaxSet();
void _ValidateConstraints();
template <class Validator>
void _Validate(bool& isValid, ResultType& result);
bool fConstraintsValid;
bool fMinValid;
bool fMaxValid;
bool fPreferredValid;
bool fLayoutValid;
BLayoutContext* fLayoutContext;
BObjectList<BALM::BALMLayout> fLayouts;
LinearSpec fLinearSpec;
ResultType fMinResult;
ResultType fMaxResult;
ResultType fPreferredResult;
ResultType fLayoutResult;
};
};
using BPrivate::SharedSolver;
#endif
