int TextField::solveCaretRetPos( int initialAmount, int retOffset )
{
int tempResult = retOffset + alignOffset - initialAmount;
int tempCaret = getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0,getCaretPosition())) + tempResult;
if(tempCaret > getAdjustedWidth() + getLeftPadding() ||
tempCaret < getLeftPadding())
{
return getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0, getCaretPosition() + 1 )) - getAdjustedWidth();
}
else
{
return initialAmount;
}
}
const RECT TwoDRenderer::getBoundingBox()
{
RECT boundingBox;
boundingBox.left = posVector.x;
boundingBox.right = posVector.x + getAdjustedWidth();
boundingBox.top = posVector.y;
boundingBox.bottom = posVector.y + getAdjustedHeight();
return boundingBox;
}
void TextField::scrollToCaret(bool negetiveChange, bool reposition)
{
int retOffset = getLeftPadding();
int textWidth = getFont()->getTextWidth(getText());
if(textWidth < getAdjustedWidth())
{
switch(getTextAlignment())
{
case ALIGN_LEFT:
alignOffset = 0;
break;
case ALIGN_CENTER:
alignOffset = (getAdjustedWidth() - textWidth) / 2;
break;
case ALIGN_RIGHT:
alignOffset = getAdjustedWidth() - textWidth;
break;
default:
break;
}
}
else
{
alignOffset = 0;
}
if(getTextLength() == 0 || getCaretPosition() == 0)
{
tOffset = retOffset;
setTextOffset(retOffset + alignOffset);
return;
}
if(reposition)
{
//do we need to move?
if(getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0,getCaretPosition())) > -tOffset + getAdjustedWidth() + getLeftPadding()
)
{
//scroll to end
if(getTextLength() < getCaretPosition() + getMaxCharacterSkip())
{
retOffset -= solveCaretRetPos(getFont()->getTextWidth(getText())
- getAdjustedWidth(),
retOffset);
}
else
{
int initialPlace = getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0, getCaretPosition() + getMaxCharacterSkip() )) - getAdjustedWidth();
retOffset -= solveCaretRetPos(initialPlace,retOffset);
}
tOffset = retOffset;
setTextOffset(retOffset + alignOffset);
return;
}
else if(tOffset + getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0,getCaretPosition())) <= leftPadding)
{
if(getCaretPosition() - getMaxCharacterSkip() > 0)
{
int initialPlace = getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0, getCaretPosition() - getMaxCharacterSkip() ));
retOffset -= solveCaretRetPos(initialPlace,retOffset);
}
tOffset = retOffset;
setTextOffset(retOffset + alignOffset);
return;
}
else if(negetiveChange )
{
int change = getCaretLocation() - getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0, getCaretPosition() )) ;
if(change <= getLeftPadding())
{
tOffset = change;
setTextOffset(change);
}
else
{
tOffset = leftPadding;
setTextOffset(leftPadding + alignOffset);
}
return;
}
}
//if there is more text than width
//but theres not enough to fill the width
//then fill the width
int a = getAdjustedWidth() + getLeftPadding();
int b = getTextOffset() + textWidth;
if(a > b && getTextOffset() < getLeftPadding())
{
retOffset = -textWidth + getInnerSize().getWidth() - getRightPadding();
tOffset = retOffset;
}
else if(getTextOffset() >= getLeftPadding() )
{
tOffset = leftPadding;
setTextOffset(leftPadding + alignOffset);
return;
}
setTextOffset(tOffset + alignOffset);
}