uiSlider.h

/*

Jump'n'Run Engine
http://www.atanaslaskov.com/jnr/

BSD LICENSE
Copyright (c) 2007-2013, Atanas Laskov
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL ATANAS LASKOV BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/




class uiSlidingButton:
    public uiContainer
{
protected:

    //Textrue
    laTexture _t;

    //Init
    virtual void init();

public:
    friend class uiSlider;

    uiSlidingButton(void) {};
    ~uiSlidingButton(void) {};

    // Get/set current position, with regard to the parent's width
    double getFraction()    {
        return (_ptPos.x()-3)  / (_pParent->getSize().x()-13);
    }

    void setFraction(double df) {
        _ptPos.x( df * (_pParent->getSize().x()-13) + 3 );
    }

    // Reply & draw
    virtual void reply();
    virtual void draw();
};

class uiSlider :
    public uiProgress
{
protected:

    //Sliding gadget
    uiSlidingButton _uiBtn;

    //Value indicator
    uiLabel _uiValueLabel;

    //Printed value format
    char _strValueFormat[16];

    // Internal construction method,
    // called by create() and load()
    virtual void init();

public:
    // Constructor/destructor
    uiSlider(void);
    ~uiSlider(void);

    // Set value
    void setValue(double val)
    {
        uiProgress::setValue(val);

        _uiBtn.setFraction( (_dCurrent-_dMin) / (_dMax-_dMin) );
    }

    // Set value format string
    void setValueFormat(char* str)
    {
        strcpy(_strValueFormat, str);
    }

    // Reply & draw
    virtual void reply();
    virtual void draw();

    void load(class laFileParser *fp);
};