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add/update constraint packing containers, test code

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This commit is contained in:
Paul Davis 2020-06-10 14:10:26 -06:00
parent 606866ea00
commit a3039d3895
8 changed files with 1232 additions and 73 deletions
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38
libs/canvas/canvas/constraint_packer.h
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@ -19,7 +19,10 @@
#ifndef __CANVAS_CONSTRAINT_PACKER_H__
#define __CANVAS_CONSTRAINT_PACKER_H__
#include "canvas/item.h"
#include <list>
#include <map>
#include "canvas/container.h"
#include "kiwi/kiwi.h"
namespace ArdourCanvas
@ -28,40 +31,43 @@ namespace ArdourCanvas
class Rectangle;
class ConstrainedItem;
class LIBCANVAS_API ConstraintPacker : public Item
class LIBCANVAS_API ConstraintPacker : public Container
{
public:
ConstraintPacker (Canvas *);
ConstraintPacker (Item *);
void add (Item *);
void add_front (Item *);
void remove (Item *);
void constrain (kiwi::Constraint const &);
virtual ConstrainedItem* add_constrained (Item* item);
void solve ();
void apply ();
void apply (kiwi::Solver*);
void compute_bounding_box () const;
void render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
void preferred_size (Duple& mininum, Duple& natural) const;
void size_allocate (Rect const &);
protected:
void child_changed ();
private:
typedef std::map<Item*,ConstrainedItem*> ConstraintMap;
ConstraintMap constraint_map;
kiwi::Solver _solver;
kiwi::Variable width;
kiwi::Variable height;
Rectangle *self;
bool collapse_on_hide;
protected:
void child_changed (bool bbox_changed);
void reset_self ();
void reposition_children ();
typedef std::map<Item*,ConstrainedItem*> ConstrainedItemMap;
ConstrainedItemMap constrained_map;
typedef std::list<kiwi::Constraint> ConstraintList;
ConstraintList constraint_list;
bool in_alloc;
void add_constrained_internal (Item*, ConstrainedItem*);
void add_constraints (kiwi::Solver&, ConstrainedItem*) const;
};
}