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TextEditLineScroller.h

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/*
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*/
#ifndef OglGui_TextEditLineScroller_h
#define OglGui_TextEditLineScroller_h

#ifndef OglGui_TextEdit_h
#include "OglGui/TextEdit.h"
#endif

namespace OglGui
{

class TextEditLineScroller : public ScrollBar, ScrollBarListener
{
public:
    TextEditLineScroller(Window* parent, int w, int h, strconst text=""):
        ScrollBar(parent, w, h, true)
    {
        Init(text, w, h);
    }

    TextEditLineScroller(Window* parent, int x, int y, int w, int h,
                         strconst text=""):
        ScrollBar(parent, x, y, w, h, true)
    {
        Init(text, w, h);
    }

    TextEdit*   TextEditor()
    {
        return mTextEdit;
    }

    virtual void OnScroll(ScrollBar *src, int position, void* userData)
    {
        mTextEdit->DocX(-position);
    }

    virtual void DisplayFunc()
    {
        int totalRange = mTextEdit->ComputeMaxWidth() + 16;
        if (totalRange < mTextEdit->W() + 16)
            totalRange = mTextEdit->W() + 16;
        SetNewPos(-mTextEdit->DocX());
        SetRange(totalRange - mTextEdit->W() + 16, 16);
        mButThumb->SetVisible(false);
        ScrollBar::DisplayFunc();
    }

private:
    void Init(strconst txt, int w, int h)
    {
        mTextEdit = new TextEdit(this, 16, 0, w-32, h, txt, 0);
        mTextEdit->SetBorderType(BEV_NONE);
        mTextEdit->SingleLine(true);
        mTextEdit->ConnectTo(this);
        mTextEdit->DocX(0);
        SetLineIncrement(16);
        SetScrollBarListener(this);
        MapKeysTo(mTextEdit);
        SetAllowChildScaling(false);
    }

    TextEdit*   mTextEdit;
};

} // namespace OglGui

#endif

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