Impala Documentation

void OglGui::TextEdit::HandleMoveKey	(	int	c,
		int	state
	)			`[inline]`

Definition at line 750 of file TextEdit.h.

References ClampDocY(), ComputeCaretPosition(), FindLineAtY(), GetLineAtIndex(), OglGui::OglWindow::H(), mCaret, mCaretY, OglGui::DocDimensions::mDocY, mLineH, mMark, mText, and mUpDownPos.

Referenced by KeyboardFunc().

00751     {
00752         bool    shift   = (state & oglShift) ? true : false;
00753         bool    control = (state & oglControl) ? true : false;
00754         string  str;
00755 
00756         if (c==oglUP || c==oglDOWN || c==oglPAGEUP || c==oglPAGEDOWN)
00757         {
00758             int     lineInd = FindLineAtY(mCaretY, mCaretY);
00759             int     dY;
00760 
00761             if (mUpDownPos == -1)
00762                 mUpDownPos = mCaret - lineInd;
00763 
00764             if (c==oglUP || c==oglDOWN)
00765                 dY = (c==oglUP ? mLineH : -mLineH);
00766             else
00767                 dY = (c==oglPAGEUP ? H()-2*mLineH : -H()+2*mLineH);
00768 
00769             lineInd = FindLineAtY(mCaretY + dY, mCaretY);
00770             if (c==oglPAGEUP || c==oglPAGEDOWN)
00771             {
00772                 int oldCaretY = mCaretY;
00773                 ComputeCaretPosition();
00774                 mDocY += mCaretY - oldCaretY;
00775                 ClampDocY();
00776             }
00777             GetLineAtIndex(&str, lineInd);
00778             int sLen = str.length();
00779             mCaret = lineInd + ((sLen > mUpDownPos) ? mUpDownPos : sLen);
00780         }
00781         else
00782         {
00783             mUpDownPos = -1;
00784             if (c==oglLEFT || c==oglRIGHT)
00785                 if ((mCaret += (c==oglLEFT) ? -1 : 1) < 0)
00786                     mCaret = 0;
00787 
00788             if (c==oglHOME && control)
00789                 mCaret = 0;
00790             else if(c == oglHOME)
00791                 mCaret = FindLineAtY(mCaretY, mCaretY);
00792 
00793             if (c==oglEND && control)
00794                 mCaret = mText.size();
00795             else if (c==oglEND)
00796             {
00797                 int lineInd = FindLineAtY(mCaretY, mCaretY);
00798                 GetLineAtIndex(&str, lineInd);
00799                 mCaret = lineInd + str.length();
00800             }
00801         }
00802 
00803         if (mCaret > mText.length())
00804             mCaret = mText.length();
00805 
00806         if (!shift)
00807             mMark = mCaret;
00808 
00809         ComputeCaretPosition();
00810     }

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