include/graphics/SkStackViewLayout.h

/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef SkStackViewLayout_DEFINED
#define SkStackViewLayout_DEFINED

#include "SkView.h"

class SkStackViewLayout : public SkView::Layout {
public:
    SkStackViewLayout();

    enum Orient {
        kHorizontal_Orient,
        kVertical_Orient,

        kOrientCount
    };
    Orient  getOrient() const { return (Orient)fOrient; }
    void    setOrient(Orient);

    void        getMargin(SkRect*) const;
    void        setMargin(const SkRect&);

    SkScalar    getSpacer() const { return fSpacer; }
    void        setSpacer(SkScalar);

    /** Controls the posititioning in the same direction as the orientation
    */
    enum Pack {
        kStart_Pack,
        kCenter_Pack,
        kEnd_Pack,
        
        kPackCount
    };
    Pack    getPack() const { return (Pack)fPack; }
    void    setPack(Pack);

    /** Controls the posititioning at right angles to the orientation
    */
    enum Align {
        kStart_Align,
        kCenter_Align,
        kEnd_Align,
        kStretch_Align,

        kAlignCount
    };
    Align   getAlign() const { return (Align)fAlign; }
    void    setAlign(Align);

    bool    getRound() const { return SkToBool(fRound); }
    void    setRound(bool);

protected:
    virtual void onLayoutChildren(SkView* parent);
    virtual void onInflate(const SkDOM&, const SkDOM::Node*);

private:
    SkRect      fMargin;
    SkScalar    fSpacer;
    uint8_t     fOrient, fPack, fAlign, fRound;
};

class SkFillViewLayout : public SkView::Layout {
public:
            SkFillViewLayout();
    void    getMargin(SkRect*) const;
    void    setMargin(const SkRect&);

protected:
    // overrides;
    virtual void onLayoutChildren(SkView* parent);
    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);

private:
    SkRect  fMargin;
    typedef SkView::Layout INHERITED;
};

#endif