1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef SkScrollBarView_DEFINED
18#define SkScrollBarView_DEFINED
19
20#include "SkView.h"
21#include "SkWidgetViews.h"
22#include "SkAnimator.h"
23
24class SkScrollBarView : public SkWidgetView {
25public:
26    SkScrollBarView();
27
28    unsigned getStart() const { return fStartPoint; }
29    unsigned getShown() const { return fShownLength; }
30    unsigned getTotal() const { return fTotalLength; }
31
32    void setStart(unsigned start);
33    void setShown(unsigned shown);
34    void setTotal(unsigned total);
35
36protected:
37    //overrides
38    virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node);
39    virtual void onSizeChange();
40    virtual void onDraw(SkCanvas* canvas);
41    virtual bool onEvent(const SkEvent& evt);
42
43private:
44    SkAnimator  fAnim;
45    unsigned    fTotalLength, fStartPoint, fShownLength;
46
47    void adjust();
48
49    typedef SkWidgetView INHERITED;
50};
51#endif
52
53