void Editbox::eraseSelectedText(bool modify_text)
{
if (getSelectionLength() != 0)
{
// setup new caret position and remove selection highlight.
setCaretIndex(d_selectionStart);
clearSelection();
// erase the selected characters (if required)
if (modify_text)
{
String newText = getText();
UndoHandler::UndoAction undo;
undo.d_type = UndoHandler::UAT_DELETE;
undo.d_startIdx = getSelectionStart();
undo.d_text = newText.substr(getSelectionStart(), getSelectionLength());
d_undoHandler->addUndoHistory(undo);
newText.erase(getSelectionStart(), getSelectionLength());
setText(newText);
// trigger notification that text has changed.
WindowEventArgs args(this);
onTextChanged(args);
}
}
}
//----------------------------------------------------------------------------//
void Editbox::onMouseDoubleClicked(MouseEventArgs& e)
{
// base class processing
Window::onMouseDoubleClicked(e);
if (e.button == LeftButton)
{
// if masked, set up to select all
if (isTextMasked())
{
d_dragAnchorIdx = 0;
setCaretIndex(getText().length());
}
// not masked, so select the word that was double-clicked.
else
{
d_dragAnchorIdx = TextUtils::getWordStartIdx(getText(),
(d_caretPos == getText().length()) ? d_caretPos :
d_caretPos + 1);
d_caretPos = TextUtils::getNextWordStartIdx(getText(), d_caretPos);
}
// perform actual selection operation.
setSelection(d_dragAnchorIdx, d_caretPos);
++e.handled;
}
}
//----------------------------------------------------------------------------//
void Editbox::onMouseButtonDown(MouseEventArgs& e)
{
// base class handling
Window::onMouseButtonDown(e);
if (e.button == LeftButton)
{
// grab inputs
if (captureInput())
{
// handle mouse down
clearSelection();
d_dragging = true;
d_dragAnchorIdx = getTextIndexFromPosition(e.position);
#ifdef CEGUI_BIDI_SUPPORT
if (d_bidiVisualMapping->getV2lMapping().size() > d_dragAnchorIdx)
d_dragAnchorIdx =
d_bidiVisualMapping->getV2lMapping()[d_dragAnchorIdx];
#endif
setCaretIndex(d_dragAnchorIdx);
}
++e.handled;
}
}
//----------------------------------------------------------------------------//
void Editbox::handleEnd(uint sysKeys)
{
if (d_caretPos < getText().length())
setCaretIndex(getText().length());
if (sysKeys & Shift)
setSelection(d_caretPos, d_dragAnchorIdx);
else
clearSelection();
}
//----------------------------------------------------------------------------//
void Editbox::handleHome(uint sysKeys)
{
if (d_caretPos > 0)
setCaretIndex(0);
if (sysKeys & Shift)
setSelection(d_caretPos, d_dragAnchorIdx);
else
clearSelection();
}
//----------------------------------------------------------------------------//
void Editbox::handleWordRight(uint sysKeys)
{
if (d_caretPos < getText().length())
setCaretIndex(TextUtils::getNextWordStartIdx(getText(), d_caretPos));
if (sysKeys & Shift)
setSelection(d_caretPos, d_dragAnchorIdx);
else
clearSelection();
}
//----------------------------------------------------------------------------//
void Editbox::onTextChanged(WindowEventArgs& e)
{
// base class processing
Window::onTextChanged(e);
// clear selection
clearSelection();
// make sure caret is within the text
if (d_caretPos > getText().length())
setCaretIndex(getText().length());
++e.handled;
}
//----------------------------------------------------------------------------//
void Editbox::onMouseTripleClicked(MouseEventArgs& e)
{
// base class processing
Window::onMouseTripleClicked(e);
if (e.button == LeftButton)
{
d_dragAnchorIdx = 0;
setCaretIndex(getText().length());
setSelection(d_dragAnchorIdx, d_caretPos);
++e.handled;
}
}
//----------------------------------------------------------------------------//
void Editbox::onMouseMove(MouseEventArgs& e)
{
// base class processing
Window::onMouseMove(e);
if (d_dragging)
{
size_t anchorIdx = getTextIndexFromPosition(e.position);
#ifdef CEGUI_BIDI_SUPPORT
if (d_bidiVisualMapping->getV2lMapping().size() > anchorIdx)
anchorIdx = d_bidiVisualMapping->getV2lMapping()[anchorIdx];
#endif
setCaretIndex(anchorIdx);
setSelection(d_caretPos, d_dragAnchorIdx);
}
++e.handled;
}
//----------------------------------------------------------------------------//
void Editbox::eraseSelectedText(bool modify_text)
{
if (getSelectionLength() != 0)
{
// setup new caret position and remove selection highlight.
setCaretIndex(d_selectionStart);
clearSelection();
// erase the selected characters (if required)
if (modify_text)
{
String newText = getText();
newText.erase(getSelectionStartIndex(), getSelectionLength());
setText(newText);
// trigger notification that text has changed.
WindowEventArgs args(this);
onTextChanged(args);
}
}
}
//----------------------------------------------------------------------------//
void Editbox::handleBackspace(void)
{
if (!isReadOnly())
{
String tmp(getText());
if (getSelectionLength() != 0)
{
tmp.erase(getSelectionStartIndex(), getSelectionLength());
if (handleValidityChangeForString(tmp))
{
// erase selection using mode that does not modify getText()
// (we just want to update state)
eraseSelectedText(false);
// set text to the newly modified string
setText(tmp);
}
}
else if (getCaretIndex() > 0)
{
tmp.erase(d_caretPos - 1, 1);
if (handleValidityChangeForString(tmp))
{
setCaretIndex(d_caretPos - 1);
// set text to the newly modified string
setText(tmp);
}
}
}
}
void Editbox::onSemanticInputEvent(SemanticEventArgs& e)
{
if (isDisabled())
return;
if (e.d_semanticValue == SV_SelectAll && e.d_payload.source == CIS_Left)
{
d_dragAnchorIdx = 0;
setCaretIndex(getText().length());
setSelection(d_dragAnchorIdx, d_caretPos);
++e.handled;
}
else if (e.d_semanticValue == SV_SelectWord && e.d_payload.source == CIS_Left)
{
// if masked, set up to select all
if (isTextMaskingEnabled())
{
d_dragAnchorIdx = 0;
setCaretIndex(getText().length());
}
// not masked, so select the word that was double-clicked.
else
{
d_dragAnchorIdx = TextUtils::getWordStartIdx(getText(),
(d_caretPos == getText().length()) ? d_caretPos :
d_caretPos + 1);
d_caretPos = TextUtils::getNextWordStartIdx(getText(), d_caretPos);
}
// perform actual selection operation.
setSelection(d_dragAnchorIdx, d_caretPos);
++e.handled;
}
if (e.handled == 0 && hasInputFocus())
{
if (isReadOnly())
{
Window::onSemanticInputEvent(e);
return;
}
if (getSelectionLength() == 0 && isSelectionSemanticValue(e.d_semanticValue))
d_dragAnchorIdx = d_caretPos;
// Check if the semantic value to be handled is of a general type and can thus be
// handled via common EditboxBase handlers
bool isSemanticValueHandled = handleBasicSemanticValue(e);
// If the semantic value was not handled, check for specific values
if (!isSemanticValueHandled)
{
// We assume it will be handled now, if not it will be set to false in default-case
isSemanticValueHandled = true;
switch (e.d_semanticValue)
{
case SV_Confirm:
{
WindowEventArgs args(this);
// Fire 'input accepted' event
onTextAcceptedEvent(args);
break;
}
case SV_GoToStartOfLine:
handleHome(false);
break;
case SV_GoToEndOfLine:
handleEnd(false);
break;
case SV_SelectToStartOfLine:
handleHome(true);
break;
case SV_SelectToEndOfLine:
handleEnd(true);
break;
default:
Window::onSemanticInputEvent(e);
isSemanticValueHandled = false;
}
}
if (isSemanticValueHandled)
++e.handled;
}
}
void Editbox::handleBackspace(void)
{
if (!isReadOnly())
{
String tmp(getText());
if (getSelectionLength() != 0)
{
UndoHandler::UndoAction undoSelection;
undoSelection.d_type = UndoHandler::UAT_DELETE;
undoSelection.d_startIdx = getSelectionStart();
undoSelection.d_text = tmp.substr(getSelectionStart(), getSelectionLength());
tmp.erase(getSelectionStart(), getSelectionLength());
if (handleValidityChangeForString(tmp))
{
// erase selection using mode that does not modify getText()
// (we just want to update state)
eraseSelectedText(false);
// set text to the newly modified string
setText(tmp);
d_undoHandler->addUndoHistory(undoSelection);
}
}
else if (getCaretIndex() > 0)
{
UndoHandler::UndoAction undo;
undo.d_type = UndoHandler::UAT_DELETE;
#if CEGUI_STRING_CLASS != CEGUI_STRING_CLASS_UTF_8
size_t deleteStartPos = d_caretPos - 1;
size_t deleteLength = 1;
#else
String::codepoint_iterator caretIter(tmp.begin() + d_caretPos,
tmp.begin(), tmp.end());
--caretIter;
size_t deleteStartPos = caretIter.getCodeUnitIndexFromStart();
size_t deleteLength = d_caretPos - deleteStartPos;
#endif
undo.d_startIdx = deleteStartPos;
undo.d_text = tmp.substr(deleteStartPos, deleteLength);
tmp.erase(deleteStartPos, deleteLength);
if (handleValidityChangeForString(tmp))
{
setCaretIndex(deleteStartPos);
// set text to the newly modified string
setText(tmp);
d_undoHandler->addUndoHistory(undo);
}
}
}
}
