Impala Documentation

void OglGui::IntervalChooser::HandleThumbs ( ) [inline, protected]

Definition at line 135 of file IntervalChooser.h.

References ClampX(), OglGui::IntervalChooserListener::IntervalChanged(), mEndThumb, mEndVal, mListener, mMaxVal, mMinSizePix, mOldEndX, mOldStartX, mStartThumb, mStartVal, mUserData, NeedleX(), Pixel2Val(), SetNeedleX(), and OglGui::OglWindow::W().

Referenced by DisplayFunc().

00136     {
00137         int oldStartVal = mStartVal;
00138         int oldEndVal   = mEndVal;
00139         int sX          = NeedleX(mStartThumb);
00140         int eX          = NeedleX(mEndThumb);
00141 
00142         ClampX(sX);
00143         ClampX(eX);
00144         if (mOldStartX < sX && sX >= eX-mMinSizePix)
00145         {
00146             if (eX==W())
00147                 sX = eX-mMinSizePix+1;
00148             else
00149                 eX = sX+mMinSizePix;
00150         }
00151         else if (mOldEndX > eX && eX <= sX+mMinSizePix)
00152         {
00153             if (sX == 0)
00154                 eX = mMinSizePix;
00155             else
00156                 sX = eX-mMinSizePix;
00157         }
00158         mOldStartX = sX = SetNeedleX(mStartThumb,sX);
00159         mOldEndX   = eX = SetNeedleX(mEndThumb,eX);
00160         mStartVal  = Pixel2Val(sX);
00161         mEndVal    = mStartVal + Pixel2Val(eX-sX);
00162 
00163         if (mEndVal > mMaxVal)
00164             mEndVal = mMaxVal;
00165 
00166         if (oldStartVal == mStartVal && oldEndVal == mEndVal)
00167             return;
00168         // printf("%d %d\n", mStartVal, mEndVal);
00169         if (mListener)
00170             mListener->IntervalChanged(this,mStartVal,mEndVal,mUserData);
00171     }

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