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ShowNextFromControl.h

Go to the documentation of this file.

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#ifndef Impala_Visualization_ShowNextFromControl_h
#define Impala_Visualization_ShowNextFromControl_h

#include "Visualization/ShowNextFromControlListener.h"

#ifndef OglGui_Button_h
#include "OglGui/Button.h"
#endif

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

namespace Impala {
namespace Visualization {

class ShowNextFromControl : public OglGui::Window,
                            public OglGui::ButtonListener,
                            public OglGui::WindowListener
{
public:
    typedef OglGui::Window          Window;
    typedef OglGui::StaticText      StaticText;
    typedef OglGui::TextEdit        TextEdit;
    typedef OglGui::Button          Button;

    ShowNextFromControl(Window* parent,int w,int h,int nrShow,int margin=0) :
        Window(parent, w, h)
    {
        Init(w,h,nrShow,margin);
    }

    void SetListener(ShowNextFromControlListener* l, void* lData=0)
    {
        mListener = l;
        mListenerData = lData;
    }

    int  NrToShow()                 { return mNrToShow; }
    void NrToShow(int n)            { mNrToShow = n; }
    int  StartVal()                 { return mStartVal; }
    void StartVal(int v)            { mStartVal = v; ShowNextFromChanged(); }
    int  MaxVal()                   { return mMax; }

    void MaxVal(int m)
    {
        mMax = m;
        mTotalText->SetText("Total:"+MakeString(m));
        if (mStartVal > mMax && (mStartVal = mMax - mNrToShow)<-1)
            mStartVal = 0;
        UpdateStartValText();
    }


    StaticText* TotalText()         { return mTotalText; }
    StaticText* ShowFromText()      { return mShowFromText; }
    TextEdit*   ShowNrTextEdit()    { return mShowNrTextEdit; }
    TextEdit*   ValTextEdit()       { return mValTextEdit; }
    Button*     PlusButton()        { return mPlusButton; }
    Button*     MinButton()         { return mMinButton; }

    void ChangeValText(TextEdit* txtEdit, int val)
    {
        txtEdit->SetText(MakeString(val));
        txtEdit->SetCaretMark(100,100);
    }

    void Clamp(int& ref, int minVal, int maxVal)
    {
        if (ref < minVal) ref = minVal;
        if (ref > maxVal) ref = maxVal;
    }

    void UpdateStartValText()
    {
        Clamp(mStartVal,0,mMax ? mMax-1 : 0);
        ChangeValText(mValTextEdit,mStartVal);
    }

    void UpdateShowNrText()
    {
        Clamp(mNrToShow,1,2000);
        ChangeValText(mShowNrTextEdit,mNrToShow);
    }

    void ShowNextFromChanged()
    {
        if (mListener)
            mListener->ShowNextFromChanged(this, mListenerData);
    }

    virtual void
    WindowKeyboardEvent(OglGui::Window *src, int c, int state, void *userData)
    {
        if (c == '\r')
        {
            if (src == mValTextEdit)
            {
                mStartVal = atoi(mValTextEdit->GetText().c_str());
                UpdateStartValText();
            }
            if (src == mShowNrTextEdit)
            {
                mNrToShow = atoi(mShowNrTextEdit->GetText().c_str());
                UpdateShowNrText();
            }
            ShowNextFromChanged();
        }
    }

    virtual void ButtonSelectionEvent(OglGui::Button *src, void *userData)
    {
        if (src == mMinButton || src == mPlusButton)
        {
            mStartVal += (((src==mPlusButton) ? mNrToShow : -mNrToShow));
            UpdateStartValText();
            ShowNextFromChanged();
        }
    }

private:
    void Init(int w, int h, int nrShow, int m)
    {
        int x  = m;
        int mH = h - 2 * m;

        mListener = 0;
        mMax = 0;
        mStartVal = 0;
        mNrToShow = nrShow;

        mTotalText = new StaticText(this,x,m,110,mH,"Total:");
        mTotalText->SetAlign(oglLeftAlign);
        x += 112;

        mShowNrTextEdit = new TextEdit(this,x,m,50,mH,"",0);
        UpdateShowNrText();
        mShowNrTextEdit->SingleLine(true);
        mShowNrTextEdit->SetWindowListener(this);
        x += 52;

        mShowFromText = new StaticText(this,x,m,88,mH,"Showing from:");
        mShowFromText->SetAlign(oglLeftAlign);
        x += 90;

        mValTextEdit = new TextEdit(this,x,m,60,mH,"0",0);
        UpdateStartValText();
        mValTextEdit->SingleLine(true);
        mValTextEdit->SetWindowListener(this);
        x += 62;

        mMinButton = new OglGui::Button(this,x,m,16,mH,"-",4,true);
        mMinButton->SetButtonListener(this);
        x += 18;

        mPlusButton = new OglGui::Button(this,x,m,16,mH,"+",4,true);
        mPlusButton->SetButtonListener(this);
        x += 16 + m;

        SetDimensions(x,h);
        ScaleChildren();
        SetAllowChildScaling(false);
        SetDimensions(w,h);
    }

    ShowNextFromControlListener*    mListener;
    void*                           mListenerData;

    StaticText* mTotalText;
    StaticText* mShowFromText;
    TextEdit*   mValTextEdit;
    TextEdit*   mShowNrTextEdit;
    Button*     mPlusButton;
    Button*     mMinButton;

    int         mStartVal;
    int         mMax;
    int         mNrToShow;
};

} // namespace Visualization
} // namespace Impala

#endif

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