Use a tab BReference as argument in Area::Set{Left, Top, Right, Bottom}.
Using a normal pointer is dangerous when creating a new tab directly in the method call because the tab gets deleted to early.

Make SharedSolver BArchivable to save extra user constraints.

Make BALMLayout respect its position when nested.

Remove BALM::Area::fConstraints field, which is not needed.

It's easier to just delete all the constraints in the dtor, the ones that
wouldn't have been in fConstraints are NULL at this point anyway.

In BALM::Area rename fTopLeftInset to fLeftTopInset.

This is consistent with for instance, the BSize ctor.

Add FBC padding to ALM classes.

Rename BALM::GroupItem to BALM::ALMGroup, and move it to its own files.

Also make ALMGroup totally self-contained, i.e. BALMLayout no longer
does the parsing, and is completely unaware of ALMGroup. A small touch
of refactoring as well.

Style cleanup in alm: mostly clean includes.

Make Area insets more consistent with other HAIKU inset APIs.

In Area, remove unused ItemFrame() method.

Also modify Frame() method to return a rect with rounded coordinates.

Give the area an id.

Make tabs BReferenceable. Maintain a list of tabs.

- Areas with same tabs are put in a column/row automtically. Move preferred size constraint from Area to the column/row. This avoids a "spring" effect of the
quadratic solver if multiple Areas are in the same column/row.
- Replace GetString by ToString.
- some clean up



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40941 a95241bf-73f2-0310-859d-f6bbb57e9c96

Make kp_solve interface work again.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40384 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add an alternative solver to lp_solve. The solver based on Ingo's active set solver but is able to handle arbitrary hard and soft constraints. The advantage to lp_solve is that the active set solver can optimize variable in respect to a quadratic objective function. This makes it possible to minimise the quadratic derivation to a desired value e.g. \Sum_i(x_i - x_{i,pref})^2 -> min.

The solver part has been refactored in this way that both solver can be used with the same layout specifications. The active set solver is default now; the performance is not as good as lp_solve, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40285 a95241bf-73f2-0310-859d-f6bbb57e9c96

Also update the preferred size constraints correctly when replacing the tabs.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39644 a95241bf-73f2-0310-859d-f6bbb57e9c96

Keep the preferred size ratio into account. This make layout behaviour much more intuitive when resizing a window. Thanks Christof.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39641 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fix gcc2 build + warnings.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38885 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Add a alternative method to setup a group layout. BLayoutItem / BView are wrapped into a GroupItem. GroupItem overloads the | (horizontal tiling) and / (vertical tiling) operators. In this manner you can create a group layout using these operators, e.g. GroupItem item = GroupItem(button1) | (GroupItem(button2) / GroupItem(button3)); would layout button1 at the left and button2 and button3 at the right in a vertical layout. All the layout information is stored in the GroupItem item, to setup the final layout you have to call BuildLayout(item). If you like it it could also be added to the BGroupLayout.
- Add operator test app.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38877 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Add helper functions to get the tabs of a view or a layout item.
- AddView only require the top, left tabs now.
- Remove the TwoViews test and replace it with a slightly more complex test.
- Merge XTab and YTab files into one header file.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38860 a95241bf-73f2-0310-859d-f6bbb57e9c96

SetDefaultBehavior is not needed since all views handled in this function have min and max size equal the pref size (despite of the status bar length, which is ok). As a result they don't grow or shrink undesirable as assumed previously. As a result also the AutoPreferredContentSize is not needed.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38795 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Implement all Add* function of the BLayout class properly. If the Add* functions of the BLayout class are called add the item to the right upper corner of the previous area. That is at least better than ignore this functions.
- Add more convenience AddViewTo{Right, Left, Top, Bottom} functions to add a item to the sides of an existing area.
- Need to add the Jamfile hack again to include the ViewLayoutItem.h header. I thing about to add the ALMLayout.* files to the interface dir when its a little bit more matured. Then the problem will be solved. Till I made a decision or somebody tell me its a bad idea to add the ALMLayout to the official interface stuff or the ViewLayoutItem.h should be in a shared header dir I will keep this hack.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38793 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add inset and spacing to BALMLayout. Each Area is able to overwrite this global values and use his own inset. Add spacing and inset to the tests.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38792 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Add some checks if the Area is initialized.
- Init some more variables in the constructor.
- Rename HasSame*As to Set*As. The old one is more a question. Also add an optional factor and remove the HasSameSizeAs function which tempt the user to leak a BList.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38790 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Don't pass a min size in the Area _Init function. The min size is updated before solving the layout so we don't have to set it in the beginning. This also simplifies the BALMLayout api.
- Header include style fixes.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38788 a95241bf-73f2-0310-859d-f6bbb57e9c96

Remove unused Constraint variables.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38781 a95241bf-73f2-0310-859d-f6bbb57e9c96

Clean up Area header a bit more and remove unused functions.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38780 a95241bf-73f2-0310-859d-f6bbb57e9c96

Use the AlignInFrame BLayoutItem function to do the item alignment. The child area is not needed any more.
Don't leak the fConstraints list.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38775 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unused min, max, pref variables.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38774 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Rename BALMLayout.* file to ALMLayout.*.
- Fix some copyrights.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38771 a95241bf-73f2-0310-859d-f6bbb57e9c96

BALMLayout now takes the view min, max and pref values into account. Previously it managed its own values.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38769 a95241bf-73f2-0310-859d-f6bbb57e9c96

First step to make the ALM layout engine more compatible with the haiku layout API. Many stuff was/is managed by ALM which could and should be done by the standard layout facilities.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38753 a95241bf-73f2-0310-859d-f6bbb57e9c96

Encapsulate the solver in the ALM layout class.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38750 a95241bf-73f2-0310-859d-f6bbb57e9c96

More cleanup and BList -> BObjectList.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38742 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Hide constraint header in Area file.
- Start to replace BList with BObjectList.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38741 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Simplified and optimized a lot the "ToString()" debugging facilities.
* *::Index() is now const, thanks to the BList improvements.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34521 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Applied a patch by Christof Lutteroth that updates ALM, and brings new test
apps.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33805 a95241bf-73f2-0310-859d-f6bbb57e9c96

ALM/linprog patch by Christof Lutteroth:
* Got rid of class ObjFunctionSummand. Both the constraint summands and
the objective function summands are now stored using class Summand.
* Some method names are more BeOS compliant now: SetX instead of ChangeX.
* linprog test code now uses new AddConstraint methods.
* CalculateMinSize and CalculateMaxSize did not free the memory they
allocated.
* Removed inappropriate setter and getter methods.
* Memory allocated in class Constraint is freed now.
* Other small changes.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24351 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Christof Lutteroth:
* copyright headers for the files of the libraries linprog and alm
* new class Summand for representing summands in a linear constraint
* merged class SoftConstraint into class Constraint; Constraint now
supports both soft and hard constraint functionality
* new AddConstraint methods in class LinearSpec for directly setting
constraints with 1 to 4 summands
* code cleanups by using aforementioned AddConstraint methods
* a new very simple test application for alm
* some style corrections


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24108 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added libalm.so and its dependency liblinprog.so. libalm.so provides a
BLayout implementation (BALMLayout) using the Auckland Layout Model
(ALM). The original ALM was implemented by Christof Lutteroth, the
Haiku/C++ version by James Kim.
The code needs some review, but the test programs seem to work fine.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23889 a95241bf-73f2-0310-859d-f6bbb57e9c96

Use a tab BReference as argument in Area::Set{Left, Top, Right, Bottom}.
Using a normal pointer is dangerous when creating a new tab directly in the method call because the tab gets deleted to early.

Make SharedSolver BArchivable to save extra user constraints.

Make BALMLayout respect its position when nested.

Remove BALM::Area::fConstraints field, which is not needed.

It's easier to just delete all the constraints in the dtor, the ones that
wouldn't have been in fConstraints are NULL at this point anyway.

In BALM::Area rename fTopLeftInset to fLeftTopInset.

This is consistent with for instance, the BSize ctor.

Add FBC padding to ALM classes.

Rename BALM::GroupItem to BALM::ALMGroup, and move it to its own files.

Also make ALMGroup totally self-contained, i.e. BALMLayout no longer
does the parsing, and is completely unaware of ALMGroup. A small touch
of refactoring as well.

Style cleanup in alm: mostly clean includes.

Make Area insets more consistent with other HAIKU inset APIs.

In Area, remove unused ItemFrame() method.

Also modify Frame() method to return a rect with rounded coordinates.

Give the area an id.

Make tabs BReferenceable. Maintain a list of tabs.

- Areas with same tabs are put in a column/row automtically. Move preferred size constraint from Area to the column/row. This avoids a "spring" effect of the
quadratic solver if multiple Areas are in the same column/row.
- Replace GetString by ToString.
- some clean up



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40941 a95241bf-73f2-0310-859d-f6bbb57e9c96

Make kp_solve interface work again.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40384 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add an alternative solver to lp_solve. The solver based on Ingo's active set solver but is able to handle arbitrary hard and soft constraints. The advantage to lp_solve is that the active set solver can optimize variable in respect to a quadratic objective function. This makes it possible to minimise the quadratic derivation to a desired value e.g. \Sum_i(x_i - x_{i,pref})^2 -> min.

The solver part has been refactored in this way that both solver can be used with the same layout specifications. The active set solver is default now; the performance is not as good as lp_solve, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40285 a95241bf-73f2-0310-859d-f6bbb57e9c96

Also update the preferred size constraints correctly when replacing the tabs.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39644 a95241bf-73f2-0310-859d-f6bbb57e9c96

Keep the preferred size ratio into account. This make layout behaviour much more intuitive when resizing a window. Thanks Christof.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39641 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fix gcc2 build + warnings.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38885 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Add a alternative method to setup a group layout. BLayoutItem / BView are wrapped into a GroupItem. GroupItem overloads the | (horizontal tiling) and / (vertical tiling) operators. In this manner you can create a group layout using these operators, e.g. GroupItem item = GroupItem(button1) | (GroupItem(button2) / GroupItem(button3)); would layout button1 at the left and button2 and button3 at the right in a vertical layout. All the layout information is stored in the GroupItem item, to setup the final layout you have to call BuildLayout(item). If you like it it could also be added to the BGroupLayout.
- Add operator test app.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38877 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Add helper functions to get the tabs of a view or a layout item.
- AddView only require the top, left tabs now.
- Remove the TwoViews test and replace it with a slightly more complex test.
- Merge XTab and YTab files into one header file.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38860 a95241bf-73f2-0310-859d-f6bbb57e9c96

SetDefaultBehavior is not needed since all views handled in this function have min and max size equal the pref size (despite of the status bar length, which is ok). As a result they don't grow or shrink undesirable as assumed previously. As a result also the AutoPreferredContentSize is not needed.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38795 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Implement all Add* function of the BLayout class properly. If the Add* functions of the BLayout class are called add the item to the right upper corner of the previous area. That is at least better than ignore this functions.
- Add more convenience AddViewTo{Right, Left, Top, Bottom} functions to add a item to the sides of an existing area.
- Need to add the Jamfile hack again to include the ViewLayoutItem.h header. I thing about to add the ALMLayout.* files to the interface dir when its a little bit more matured. Then the problem will be solved. Till I made a decision or somebody tell me its a bad idea to add the ALMLayout to the official interface stuff or the ViewLayoutItem.h should be in a shared header dir I will keep this hack.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38793 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add inset and spacing to BALMLayout. Each Area is able to overwrite this global values and use his own inset. Add spacing and inset to the tests.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38792 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Add some checks if the Area is initialized.
- Init some more variables in the constructor.
- Rename HasSame*As to Set*As. The old one is more a question. Also add an optional factor and remove the HasSameSizeAs function which tempt the user to leak a BList.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38790 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Don't pass a min size in the Area _Init function. The min size is updated before solving the layout so we don't have to set it in the beginning. This also simplifies the BALMLayout api.
- Header include style fixes.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38788 a95241bf-73f2-0310-859d-f6bbb57e9c96

Remove unused Constraint variables.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38781 a95241bf-73f2-0310-859d-f6bbb57e9c96

Clean up Area header a bit more and remove unused functions.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38780 a95241bf-73f2-0310-859d-f6bbb57e9c96

Use the AlignInFrame BLayoutItem function to do the item alignment. The child area is not needed any more.
Don't leak the fConstraints list.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38775 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unused min, max, pref variables.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38774 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Rename BALMLayout.* file to ALMLayout.*.
- Fix some copyrights.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38771 a95241bf-73f2-0310-859d-f6bbb57e9c96

BALMLayout now takes the view min, max and pref values into account. Previously it managed its own values.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38769 a95241bf-73f2-0310-859d-f6bbb57e9c96

First step to make the ALM layout engine more compatible with the haiku layout API. Many stuff was/is managed by ALM which could and should be done by the standard layout facilities.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38753 a95241bf-73f2-0310-859d-f6bbb57e9c96

Encapsulate the solver in the ALM layout class.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38750 a95241bf-73f2-0310-859d-f6bbb57e9c96

More cleanup and BList -> BObjectList.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38742 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Hide constraint header in Area file.
- Start to replace BList with BObjectList.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38741 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Simplified and optimized a lot the "ToString()" debugging facilities.
* *::Index() is now const, thanks to the BList improvements.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34521 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Applied a patch by Christof Lutteroth that updates ALM, and brings new test
apps.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33805 a95241bf-73f2-0310-859d-f6bbb57e9c96

ALM/linprog patch by Christof Lutteroth:
* Got rid of class ObjFunctionSummand. Both the constraint summands and
the objective function summands are now stored using class Summand.
* Some method names are more BeOS compliant now: SetX instead of ChangeX.
* linprog test code now uses new AddConstraint methods.
* CalculateMinSize and CalculateMaxSize did not free the memory they
allocated.
* Removed inappropriate setter and getter methods.
* Memory allocated in class Constraint is freed now.
* Other small changes.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24351 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Christof Lutteroth:
* copyright headers for the files of the libraries linprog and alm
* new class Summand for representing summands in a linear constraint
* merged class SoftConstraint into class Constraint; Constraint now
supports both soft and hard constraint functionality
* new AddConstraint methods in class LinearSpec for directly setting
constraints with 1 to 4 summands
* code cleanups by using aforementioned AddConstraint methods
* a new very simple test application for alm
* some style corrections


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24108 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added libalm.so and its dependency liblinprog.so. libalm.so provides a
BLayout implementation (BALMLayout) using the Auckland Layout Model
(ALM). The original ALM was implemented by Christof Lutteroth, the
Haiku/C++ version by James Kim.
The code needs some review, but the test programs seem to work fine.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23889 a95241bf-73f2-0310-859d-f6bbb57e9c96