/*
 * Copyright 2012, Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 */


#include "ALMLayoutBuilder.h"


#include <Window.h>

#include "Area.h"


namespace BALM {


BALMLayoutBuilder::BALMLayoutBuilder(BView* view, float hSpacing,
        float vSpacing, BALMLayout* friendLayout)
{
        fLayout = new BALMLayout(hSpacing, vSpacing, friendLayout);
        view->SetLayout(fLayout);
}


BALMLayoutBuilder::BALMLayoutBuilder(BView* view, BALMLayout* layout)
{
        fLayout = layout;
        view->SetLayout(layout);
}


BALMLayoutBuilder::BALMLayoutBuilder(BWindow* window, float hSpacing,
        float vSpacing, BALMLayout* friendLayout)
{
        fLayout = new BALMLayout(hSpacing, vSpacing, friendLayout);
        window->SetLayout(fLayout);

        fLayout->Owner()->SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
                // TODO: we get a white background if we don't do this
}


BALMLayoutBuilder::BALMLayoutBuilder(BWindow* window, BALMLayout* layout)
{
        fLayout = layout;
        window->SetLayout(fLayout);

        fLayout->Owner()->SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
                // TODO: we get a white background if we don't do this
}


BALMLayoutBuilder::BALMLayoutBuilder(BALMLayout* layout)
{
        fLayout = layout;
}


BALMLayoutBuilder&
BALMLayoutBuilder::Add(BView* view, XTab* left, YTab* top,
        XTab* right, YTab* bottom)
{
        Area* a = (fLayout->AddView(view, left, top, right, bottom));
        _SetCurrentArea(a);
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::Add(BView* view, Row* row, Column* column)
{
        _SetCurrentArea(fLayout->AddView(view, row, column));
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::Add(BLayoutItem* item, XTab* left, YTab* top,
        XTab* right, YTab* bottom)
{
        _SetCurrentArea(fLayout->AddItem(item, left, top, right, bottom));
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::Add(BLayoutItem* item, Row* row, Column* column)
{
        fLayout->AddItem(item, row, column);
        return *this;
}



BALMLayoutBuilder&
BALMLayoutBuilder::SetInsets(float insets)
{
        fLayout->SetInsets(insets);
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::SetInsets(float horizontal, float vertical)
{
        fLayout->SetInsets(horizontal, vertical);
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::SetInsets(float left, float top, float right,
                                                                        float bottom)
{
        fLayout->SetInsets(left, top, right, bottom);
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::SetSpacing(float horizontal, float vertical)
{
        fLayout->SetSpacing(horizontal, vertical);
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::StartingAt(BView* view)
{
        fAreaStack.MakeEmpty();
        fAreaStack.AddItem(fLayout->AreaFor(view));
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::StartingAt(BLayoutItem* item)
{
        fAreaStack.MakeEmpty();
        fAreaStack.AddItem(fLayout->AreaFor(item));
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddToLeft(BView* view, XTab* _left, YTab* top, YTab* bottom)
{
        Area* currentArea = _CurrentArea();
        BReference<XTab> left = _left;
        if (_left == NULL)
                left = fLayout->AddXTab();
        XTab* right = currentArea->Left();
        if (!top)
                top = currentArea->Top();
        if (!bottom)
                bottom = currentArea->Bottom();

        return Add(view, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddToRight(BView* view, XTab* _right, YTab* top,
        YTab* bottom)
{
        Area* currentArea = _CurrentArea();
        XTab* left = currentArea->Right();
        BReference<XTab> right = _right;
        if (_right == NULL)
                right = fLayout->AddXTab();
        if (!top)
                top = currentArea->Top();
        if (!bottom)
                bottom = currentArea->Bottom();

        return Add(view, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddAbove(BView* view, YTab* _top, XTab* left,
        XTab* right)
{
        Area* currentArea = _CurrentArea();
        if (!left)
                left = currentArea->Left();
        if (!right)
                right = currentArea->Right();
        BReference<YTab> top = _top;
        if (_top == NULL)
                top = fLayout->AddYTab();
        YTab* bottom = currentArea->Top();

        return Add(view, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddBelow(BView* view, YTab* _bottom, XTab* left,
        XTab* right)
{
        Area* currentArea = _CurrentArea();
        if (!left)
                left = currentArea->Left();
        if (!right)
                right = currentArea->Right();
        YTab* top = currentArea->Bottom();
        BReference<YTab> bottom = _bottom;
        if (_bottom == NULL)
                bottom = fLayout->AddYTab();

        return Add(view, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddToLeft(BLayoutItem* item, XTab* _left, YTab* top,
        YTab* bottom)
{
        Area* currentArea = _CurrentArea();
        BReference<XTab> left = _left;
        if (_left == NULL)
                left = fLayout->AddXTab();
        XTab* right = currentArea->Left();
        if (!top)
                top = currentArea->Top();
        if (!bottom)
                bottom = currentArea->Bottom();

        return Add(item, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddToRight(BLayoutItem* item, XTab* _right, YTab* top,
        YTab* bottom)
{
        Area* currentArea = _CurrentArea();
        XTab* left = currentArea->Right();
        BReference<XTab> right = _right;
        if (_right == NULL)
                right = fLayout->AddXTab();
        if (!top)
                top = currentArea->Top();
        if (!bottom)
                bottom = currentArea->Bottom();

        return Add(item, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddAbove(BLayoutItem* item, YTab* _top, XTab* left,
        XTab* right)
{
        Area* currentArea = _CurrentArea();
        if (!left)
                left = currentArea->Left();
        if (!right)
                right = currentArea->Right();
        BReference<YTab> top = _top;
        if (_top == NULL)
                top = fLayout->AddYTab();
        YTab* bottom = currentArea->Top();

        return Add(item, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::AddBelow(BLayoutItem* item, YTab* _bottom, XTab* left,
        XTab* right)
{
        Area* currentArea = _CurrentArea();
        if (!left)
                left = currentArea->Left();
        if (!right)
                right = currentArea->Right();
        YTab* top = currentArea->Bottom();
        BReference<YTab> bottom = _bottom;
        if (_bottom == NULL)
                bottom = fLayout->AddYTab();

        return Add(item, left, top, right, bottom);
}


BALMLayoutBuilder&
BALMLayoutBuilder::Push()
{
        fAreaStack.AddItem(_CurrentArea());
        return *this;
}


BALMLayoutBuilder&
BALMLayoutBuilder::Pop()
{
        if (fAreaStack.CountItems() > 0)
                fAreaStack.RemoveItemAt(fAreaStack.CountItems() - 1);
        return *this;
}


void
BALMLayoutBuilder::_SetCurrentArea(Area* area)
{
        if (fAreaStack.CountItems() > 0)
                fAreaStack.ReplaceItem(fAreaStack.CountItems() - 1, area);
        else
                fAreaStack.AddItem(area);
}


Area*
BALMLayoutBuilder::_CurrentArea() const
{
        return fAreaStack.ItemAt(fAreaStack.CountItems() - 1);
}


};