bool CodeEditorComponent::deleteWhitespaceBackwardsToTabStop()
{
if (getHighlightedRegion().isEmpty())
{
for (;;)
{
const int currentColumn = indexToColumn (caretPos.getLineNumber(), caretPos.getIndexInLine());
if (currentColumn <= 0 || (currentColumn % spacesPerTab) == 0)
break;
moveCaretLeft (false, true);
}
const String selected (getTextInRange (getHighlightedRegion()));
if (selected.isNotEmpty() && selected.trim().isEmpty())
{
cut();
return true;
}
}
return false;
}
void FixedHeightLayoutManager::moveTheCaret(UInt32 dir,bool isShiftPressed,bool isControlPressed)
{
if(!rootElement || !rootElement->getElementCount()) return;
UInt32 charactersToBeForwarded;
PlainDocumentLeafElementRefPtr theElement;
Int32 tempIndex;
Int32 tempLine;
switch(dir)
{
case LEFT:
if(!isShiftPressed)
{
if(HSL != HEL || HSI != HEI) // something was highlighted before this
{
if(isStartLocationBeforeEndLocation())
{
_CaretLine = HSL; // set caret position to the Highlight Starting position
_CaretIndex = HSI;
HEI = HSI;
HEL = HSL;
}
else
{
_CaretLine = HEL; // set caret position to the Highlight Ending position
_CaretIndex = HEI;
HSI = HEI;
HSL = HEL;
}
recalculateCaretPositions();
}
else // nothing was highlighted before this
{
if(!isControlPressed)moveCaretLeft();
else moveAndHighlightWord(LEFT);
HSI = HEI = _CaretIndex;
HSL = HEL = _CaretLine;
}
}
else // if shift is pressed
{
if(!isControlPressed)moveCaretLeft();
else moveAndHighlightWord(LEFT);
HEI = _CaretIndex;
HEL = _CaretLine;
}
break;
case RIGHT:
if(!isShiftPressed)
{
if(HSL != HEL || HSI != HEI) // something was highlighted before this
{
if(isStartLocationBeforeEndLocation())
{
_CaretLine = HEL; // set caret position to the Highlight Starting position
_CaretIndex = HEI;
HSI = HEI;
HSL = HEL;
}
else
{
_CaretLine = HSL; // set caret position to the Highlight Ending position
_CaretIndex = HSI;
HEI = HSI;
HEL = HSL;
}
recalculateCaretPositions();
}
else // nothing was highlighted before this
{
if(!isControlPressed)moveCaretRight();
else moveAndHighlightWord(RIGHT);
HSI = HEI = _CaretIndex;
HSL = HEL = _CaretLine;
}
}
else // if shift is pressed
{
if(!isControlPressed)moveCaretRight();
else moveAndHighlightWord(RIGHT);
HEI = _CaretIndex;
HEL = _CaretLine;
}
break;
case UP:
if(!isShiftPressed && !isControlPressed)
{
if(HSL != HEL || HSI != HEI) // something was highlighted before this
{
if(isStartLocationBeforeEndLocation())
{
_CaretLine = HSL; // set caret position to the Highlight Starting position
_CaretIndex = HSI;
HEI = HSI;
HEL = HSL;
}
else
{
_CaretLine = HEL; // set caret position to the Highlight Ending position
_CaretIndex = HEI;
HSI = HEI;
HSL = HEL;
}
moveCaretUp();
}
else // nothing was highlighted before this
{
moveCaretUp();
HSI = HEI = _CaretIndex;
HSL = HEL = _CaretLine;
}
}
else if(isShiftPressed && !isControlPressed) // if shift is pressed
{
moveCaretUp();
HEI = _CaretIndex;
HEL = _CaretLine;
}
break;
case DOWN:
if(!isShiftPressed && !isControlPressed)
{
if(HSL != HEL || HSI != HEI) // something was highlighted before this
{
if(isStartLocationBeforeEndLocation())
{
_CaretLine = HEL; // set caret position to the Highlight Starting position
_CaretIndex = HEI;
HSI = HEI;
HSL = HEL;
}
else
{
_CaretLine = HSL; // set caret position to the Highlight Ending position
_CaretIndex = HSI;
HEI = HSI;
HEL = HSL;
}
moveCaretDown();
}
else // nothing was highlighted before this
{
moveCaretDown();
HSI = HEI = _CaretIndex;
HSL = HEL = _CaretLine;
}
}
else if(isShiftPressed && !isControlPressed) // if shift is pressed
{
moveCaretDown();
HEI = _CaretIndex;
HEL = _CaretLine;
}
break;
case HOME:
moveCaretHome(isControlPressed);
HEI = _CaretIndex;
HEL = _CaretLine;
if(!isShiftPressed)
{
HSI = HEI;
HSL = HEL;
}
break;
case HOMEOFNEXTLINE:
theElement = dynamic_cast<PlainDocumentLeafElement*>(rootElement->getElement(_CaretLine));
charactersToBeForwarded = theElement->getTextLength()-_CaretIndex;
_CaretIndex = 0;
_CaretLine++;
recalculateCaretPositions();
getParentTextDomArea()->setCaretPosition(getParentTextDomArea()->getCaretPosition()+ charactersToBeForwarded);
break;
case END:
moveCaretEnd(isControlPressed);
HEI = _CaretIndex;
HEL = _CaretLine;
if(!isShiftPressed)
{
HSI = HEI;
HSL = HEL;
}
break;
case PAGEUP:
tempIndex = _CaretIndex;
tempLine = _CaretLine;
tempLine -= getLinesToBeDisplayed();
if(tempLine<0)tempLine = 0;
theElement = dynamic_cast<PlainDocumentLeafElement*>(rootElement->getElement(tempLine));
if(tempIndex > theElement->getTextLength()-2)tempIndex = theElement->getTextLength()-2;
HEI = tempIndex;
HEL = tempLine;
if(!isShiftPressed)
{
HSI = HEI;
HSL = HEL;
}
_CaretLine = HEL; // set caret position to the Highlight Ending position
_CaretIndex = HEI;
recalculateCaretPositions();
break;
case PAGEDOWN:
tempIndex = _CaretIndex;
tempLine = _CaretLine;
tempLine += getLinesToBeDisplayed();
if(tempLine>=rootElement->getElementCount())tempLine = rootElement->getElementCount()-1;
theElement = dynamic_cast<PlainDocumentLeafElement*>(rootElement->getElement(tempLine));
if(tempIndex > theElement->getTextLength()-2)tempIndex = theElement->getTextLength()-2;
HEI = tempIndex;
HEL = tempLine;
if(!isShiftPressed)
{
HSI = HEI;
HSL = HEL;
}
_CaretLine = HEL; // set caret position to the Highlight Ending position
_CaretIndex = HEI;
recalculateCaretPositions();
break;
}
checkCaretVisibility(dir);
}
