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::handleDelete(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() < tmp.length())
{
UndoHandler::UndoAction undo;
undo.d_type = UndoHandler::UAT_DELETE;
undo.d_startIdx = d_caretPos;
#if CEGUI_STRING_CLASS != CEGUI_STRING_CLASS_UTF_8
size_t eraseLength = 1;
#else
size_t eraseLength = String::getCodePointSize(tmp[d_caretPos]);
#endif
undo.d_text = tmp.substr(d_caretPos, eraseLength);
tmp.erase(d_caretPos, eraseLength);
if (handleValidityChangeForString(tmp))
{
// set text to the newly modified string
setText(tmp);
d_undoHandler->addUndoHistory(undo);
}
}
}
}
const std::string TextField::getSelectedText() const
{
if(getSelectionStart() == getSelectionEnd())
{
return std::string("");
}
else
{
return unicodeFunctions.subStr(getText(),
getSelectionStart(),getSelectionLength());
}
}
bool Editbox::performPaste(Clipboard& clipboard)
{
if (isReadOnly())
return false;
String clipboardText = clipboard.getText();
if (clipboardText.empty())
return false;
// backup current text
String tmp(getText());
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 there is room
if (tmp.length() < d_maxTextLen)
{
UndoHandler::UndoAction undo;
undo.d_type = UndoHandler::UAT_INSERT;
undo.d_startIdx = getCaretIndex();
undo.d_text = clipboardText;
tmp.insert(getSelectionStart(), clipboardText);
if (handleValidityChangeForString(tmp))
{
// erase selection using mode that does not modify getText()
// (we just want to update state)
eraseSelectedText(false);
// advance caret (done first so we can "do stuff" in event
// handlers!)
d_caretPos += clipboardText.length();
// set text to the newly modified string
setText(tmp);
d_undoHandler->addUndoHistory(undo);
if (getSelectionLength() > 0)
d_undoHandler->addUndoHistory(undoSelection);
return true;
}
}
return false;
}
void TextField::deleteSelection()
{
if(getSelectionStart() == getSelectionEnd())
{
return;
}
positionCaret(getSelectionEnd());
int e = getSelectionEnd();
int s = getSelectionStart();
for (int i = e; i > s; i--)
{
removeLastCharacter();
}
setSelection(0,0);
}
void TextField::paintComponent( const PaintEvent &paintEvent )
{
int caretLoc = getCaretLocation();
int textLoc = getTextOffset();
Rectangle sideclip = getInnerRectangle();
sideclip = Rectangle(sideclip.getX() + getLeftPadding() ,
sideclip.getY() + 2,sideclip.getSize().getWidth() - getLeftPadding()
- getRightPadding() + 1, sideclip.getHeight() - 4);
if(isReadOnly())
{
paintEvent.graphics()->drawFilledRectangle(
getSizeRectangle(),frameColor);
}
else
{
paintEvent.graphics()->drawFilledRectangle(
getSizeRectangle(),getBackColor());
}
paintEvent.graphics()->pushClippingRect(sideclip);
if(getSelectionStart() != getSelectionEnd() && (isFocused() || !isHidingSelection()) )
{
Rectangle selRect = Rectangle(
getSelectionLocation(),
(getInnerHeight() / 2) -
(getFont()->getLineHeight() / 2),
getSelectionWidth(),
getFont()->getLineHeight());
paintEvent.graphics()->drawFilledRectangle(
selRect,getSelectionBackColor());
}
paintEvent.graphics()->drawText(Point(textLoc, +
((getInnerSize().getHeight() - getFont()->getLineHeight()) / 2)),getText().c_str(),
getFontColor(),getFont());
if(isFocused())
{
if(isBlinking())
paintEvent.graphics()->drawLine(Point(caretLoc + 1,
((getInnerSize().getHeight() / 2) + (getFont()->getLineHeight() / 2))),
Point(caretLoc + 1, ((getInnerSize().getHeight() / 2) -
(getFont()->getLineHeight() / 2))),
Color(0,0,0));
}
paintEvent.graphics()->popClippingRect();
}
void Text::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
if (!doc)
return;
painter->setClipRect(boundingRect());
// draw selection
QAbstractTextDocumentLayout::PaintContext ctx;
QAbstractTextDocumentLayout::Selection sel;
if (hasSelection())
{
sel.cursor = QTextCursor(doc);
sel.cursor.setPosition(getSelectionStart());
sel.cursor.setPosition(getSelectionEnd(), QTextCursor::KeepAnchor);
}
const QColor selectionColor = QColor::fromRgbF(0.23, 0.68, 0.91);
sel.format.setBackground(selectionColor.lighter(selectionHasFocus ? 100 : 160));
sel.format.setForeground(selectionHasFocus ? Qt::white : Qt::black);
ctx.selections.append(sel);
ctx.palette.setColor(QPalette::Text, color);
// draw text
doc->documentLayout()->draw(painter, ctx);
}
void TextField::setSize( const Dimension& size )
{
Widget::setSize(size);
scrollToCaret(false,false);
relocateCaret();
setSelection(getSelectionStart(),getSelectionEnd());
}
bool Text::isOverSelection(QPointF scenePos) const
{
int cur = cursorFromPos(scenePos);
if (getSelectionStart() < cur && getSelectionEnd() >= cur)
return true;
return false;
}
void Text::selectionMouseMove(QPointF scenePos)
{
if (!doc)
return;
int cur = cursorFromPos(scenePos);
if (cur >= 0) {
selectionEnd = cur;
selectedText = extractSanitizedText(getSelectionStart(), getSelectionEnd());
}
update();
}
void UIHexEditorWnd::keyPressEdit(QKeyEvent *event, u64 posAddr)
{
int key = int(event->text()[0].toLatin1());
if (textEdit)
{
if ((key>='0' && key<='9') || (key>='a' && key <= 'z') || (key>='A' && key <= 'Z'))
{
if (getSelectionStart() != getSelectionEnd())
{
posAddr = getSelectionStart();
clear(posAddr, getSelectionEnd() - posAddr);
setCursorPos(2*posAddr);
resetSelection(2*posAddr);
}
// Patch byte
overwrite((u32)cursorAddr >> 1, (u8)key);
setCursorPos(cursorAddr + 2);
resetSelection(cursorAddr);
}
}
else
{
if ((key>='0' && key<='9') || (key>='a' && key <= 'f') || (key>='A' && key <= 'F'))
void Text::selectionDoubleClick(QPointF scenePos)
{
if (!doc)
return;
int cur = cursorFromPos(scenePos);
if (cur >= 0) {
QTextCursor cursor(doc);
cursor.setPosition(cur);
cursor.select(QTextCursor::WordUnderCursor);
selectionAnchor = cursor.selectionStart();
selectionEnd = cursor.selectionEnd();
selectedText = extractSanitizedText(getSelectionStart(), getSelectionEnd());
}
update();
}
void Text::selectionTripleClick(QPointF scenePos)
{
if (!doc)
return;
int cur = cursorFromPos(scenePos);
if (cur >= 0) {
QTextCursor cursor(doc);
cursor.setPosition(cur);
cursor.select(QTextCursor::BlockUnderCursor);
selectionAnchor = cursor.selectionStart();
selectionEnd = cursor.selectionEnd();
if (cursor.block().isValid() && cursor.block().blockNumber() != 0)
selectionAnchor++;
selectedText = extractSanitizedText(getSelectionStart(), getSelectionEnd());
}
update();
}
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);
}
}
}
}
resetSelection(2*posAddr);
}
// Patch byte
overwrite((u32)cursorAddr >> 1, (u8)key);
setCursorPos(cursorAddr + 2);
resetSelection(cursorAddr);
}
}
else
{
if ((key>='0' && key<='9') || (key>='a' && key <= 'f') || (key>='A' && key <= 'F'))
{
if (getSelectionStart() != getSelectionEnd())
{
posAddr = getSelectionStart();
clear(posAddr, getSelectionEnd() - posAddr);
setCursorPos(2*posAddr);
resetSelection(2*posAddr);
}
// Patch byte
overwrite((s64)cursorAddr, (char)key);
setCursorPos(cursorAddr + 1);
resetSelection(cursorAddr);
}
}
if (event->key()==Qt::Key_Tab)
{
textEdit ^= true;
}
void TextField::handleKeyboard( KeyEvent &keyEvent )
{
if(handleHotkeys(keyEvent))
{
return;
}
//delete the next character
if(keyEvent.getKey() == KEY_DELETE)
{
if(getCaretPosition() == getTextLength()
&& getSelectionStart() == getSelectionEnd())
{
return;
}
if(isReadOnly())
{
return;
}
if(getSelectionStart() == getSelectionEnd())
{
removeNextCharacter();
}
else
{
deleteSelection();
}
setBlinking(true);
invalidateBlink();
return;
}
//delete the previous character
if(keyEvent.getKey() == KEY_BACKSPACE)
{
if(getCaretPosition() == 0 && getSelectionStart() == getSelectionEnd())
{
return;
}
if(isReadOnly())
{
return;
}
if(getSelectionStart() == getSelectionEnd())
{
removeLastCharacter();
}
else
{
deleteSelection();
}
setBlinking(true);
invalidateBlink();
return;
}
if(keyEvent.getUnichar() >= ' ')
{
if(isReadOnly())
{
setBlinking(true);
invalidateBlink();
return;
}
if( isNumeric())
{
if(keyEvent.getUnichar() >= 0x30 && keyEvent.getUnichar() <= 0x39 )
{
deleteSelection();
addToNextCharacter(keyEvent.getUnichar());
setBlinking(true);
invalidateBlink();
}
else if(wantedDecimal() && keyEvent.getUnichar() == 0x2e )
{
//check if there is already a decimal
const char *text = getText().c_str();
for (int i = 0; i < getTextLength(); ++i)
{
if(text[i] == 0x2e)
{
return;
}
}
deleteSelection();
addToNextCharacter(keyEvent.getUnichar());
setBlinking(true);
invalidateBlink();
}
else if(wantedMinus() && keyEvent.getUnichar() == 0x2d )
{
//check if we are in the first position
if(getCaretPosition() != 0)
{
return;
}
//check if there is already a minus
const char *text = getText().c_str();
for (int i = 0; i < getTextLength(); ++i)
{
if(text[i] == 0x2d)
{
return;
}
}
deleteSelection();
addToNextCharacter(keyEvent.getUnichar());
setBlinking(true);
invalidateBlink();
}
return;
}
deleteSelection();
addToNextCharacter(keyEvent.getUnichar());
setBlinking(true);
invalidateBlink();
return;
}
switch (keyEvent.getExtendedKey())
{
case EXT_KEY_RIGHT:
if(getCaretPosition() == getTextLength()
&& getSelectionStart() != getSelectionEnd() &&
keyEvent.shift())
{
return;
}
else if(getCaretPosition() == getTextLength()
&& getSelectionStart() == getSelectionEnd())
{
return;
}
positionCaret(getCaretPosition() + 1);
if(keyEvent.shift())
{
if(getSelectionStart() == getSelectionEnd())
{
setSelection(getCaretPosition() - 1, getCaretPosition());
}
else
{
if(getCaretPosition() - 1 < getSelectionEnd())
setSelection(getSelectionEnd(), getCaretPosition());
else
setSelection(getSelectionStart(), getCaretPosition());
}
}
else if(getSelectionStart() != getSelectionEnd())
{
int caretPos = getSelectionEnd();
setSelection(0,0);
positionCaret(caretPos);
}
setBlinking(true);
invalidateBlink();
break;
case EXT_KEY_LEFT:
if(getCaretPosition() == 0
&& getSelectionStart() != getSelectionEnd() &&
keyEvent.shift())
{
return;
}
else if(getCaretPosition() == 0
&& getSelectionStart() == getSelectionEnd())
{
return;
}
positionCaret(getCaretPosition() - 1);
if(keyEvent.shift())
{
if(getSelectionStart() == getSelectionEnd())
{
setSelection(getCaretPosition() + 1, getCaretPosition());
}
else
{
if(getCaretPosition() + 1 < getSelectionEnd())
setSelection(getSelectionEnd(), getCaretPosition());
else
setSelection(getSelectionStart(), getCaretPosition());
}
}
else if(getSelectionStart() != getSelectionEnd())
{
int caretPos = getSelectionStart();
setSelection(0,0);
positionCaret(caretPos);
}
setBlinking(true);
invalidateBlink();
break;
}
}
void TextField::setSelection( int start, int end )
{
if(!isSelectable())
{
if(getSelectionStart() != getSelectionEnd())
{
start = 0;
end = 0;
}
else
{
return;
}
}
if(start == end)
{
selStart = 0;
selEnd = 0;
selWidth = 0;
}
if(start == -1 && end == -1)
{
start = 0;
end = getTextLength();
}
else if( end == -1)
{
end = getTextLength();
}
if( start > end)
{
int temp = start;
start = end;
end = temp;
}
if(start < 0)
{
start = 0;
}
if( end > getTextLength() )
{
end = getTextLength();
}
for(std::vector<TextFieldListener*>::iterator it = tFieldListeners.begin();
it != tFieldListeners.end(); ++it)
{
(*it)->selectionChanged(this,start,end);
}
selStart = start;
selEnd = end;
selLength = end - start;
selPos = getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
0,start)) + getTextOffset();
selWidth = getFont()->getTextWidth(unicodeFunctions.subStr(getText(),
start,selLength));
}
void Editbox::onCharacter(TextEventArgs& e)
{
// NB: We are not calling the base class handler here because it propagates
// inputs back up the window hierarchy, whereas, as a consumer of input
// events, we want such propagation to cease with us regardless of whether
// we actually handle the event.
// fire event.
fireEvent(EventCharacterKey, e, Window::EventNamespace);
// only need to take notice if we have focus
if (e.handled == 0 && hasInputFocus() && !isReadOnly() &&
getFont()->isCodepointAvailable(e.d_character))
{
// backup current text
String tmp(getText());
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 there is room
if (tmp.length() < d_maxTextLen)
{
UndoHandler::UndoAction undo;
undo.d_type = UndoHandler::UAT_INSERT;
undo.d_startIdx = getSelectionStart();
undo.d_text = e.d_character;
tmp.insert(getSelectionStart(), 1, e.d_character);
if (handleValidityChangeForString(tmp))
{
// erase selection using mode that does not modify getText()
// (we just want to update state)
eraseSelectedText(false);
// advance caret (done first so we can "do stuff" in event
// handlers!)
d_caretPos++;
// set text to the newly modified string
setText(tmp);
// char was accepted into the Editbox - mark event as handled.
++e.handled;
d_undoHandler->addUndoHistory(undo);
if (getSelectionLength() > 0)
d_undoHandler->addUndoHistory(undoSelection);
}
}
else
{
// Trigger text box full event
WindowEventArgs args(this);
onEditboxFullEvent(args);
}
}
// event was (possibly) not handled
}
