void TextField::positionCaret( int position, bool surpressNegChange)
{
bool negChange = false;
if(position > getTextLength())
{
position = getTextLength();
}
if(position < 0)
{
position = 0;
}
if(position < caretPosition && !surpressNegChange)
{
negChange = true;
}
caretPosition = position;
scrollToCaret(negChange,true);
relocateCaret();
//because circular dependencies
//are the new recursion!
scrollToCaret(negChange,true);
relocateCaret();
}
void TextField::setSize( const Dimension& size )
{
Widget::setSize(size);
scrollToCaret(false,false);
relocateCaret();
setSelection(getSelectionStart(),getSelectionEnd());
}
void TextBox::keyPressed(gcn::KeyEvent& keyEvent)
{
gcn::Key key = keyEvent.getKey();
int action = static_cast<KeyEvent*>(&keyEvent)->getActionId();
switch (action)
{
case Input::KEY_GUI_LEFT:
{
--mCaretColumn;
if (mCaretColumn < 0)
{
--mCaretRow;
if (mCaretRow < 0)
{
mCaretRow = 0;
mCaretColumn = 0;
}
else
{
mCaretColumn = mTextRows[mCaretRow].size();
}
}
break;
}
case Input::KEY_GUI_RIGHT:
{
++mCaretColumn;
if (mCaretColumn > static_cast<int>(mTextRows[mCaretRow].size()))
{
++ mCaretRow;
if (mCaretRow >= static_cast<int>(mTextRows.size()))
{
mCaretRow = mTextRows.size() - 1;
if (mCaretRow < 0)
mCaretRow = 0;
mCaretColumn = mTextRows[mCaretRow].size();
}
else
{
mCaretColumn = 0;
}
}
break;
}
case Input::KEY_GUI_DOWN:
{
setCaretRow(mCaretRow + 1);
break;
}
case Input::KEY_GUI_UP:
{
setCaretRow(mCaretRow - 1);
break;
}
case Input::KEY_GUI_HOME:
{
mCaretColumn = 0;
break;
}
case Input::KEY_GUI_END:
{
mCaretColumn = mTextRows[mCaretRow].size();
break;
}
case Input::KEY_GUI_SELECT2:
{
if (mEditable)
{
mTextRows.insert(mTextRows.begin() + mCaretRow + 1,
mTextRows[mCaretRow].substr(mCaretColumn,
mTextRows[mCaretRow].size() - mCaretColumn));
mTextRows[mCaretRow].resize(mCaretColumn);
++mCaretRow;
mCaretColumn = 0;
}
break;
}
case Input::KEY_GUI_BACKSPACE:
{
if (mCaretColumn != 0 && mEditable)
{
mTextRows[mCaretRow].erase(mCaretColumn - 1, 1);
--mCaretColumn;
}
else if (mCaretColumn == 0 && mCaretRow != 0 && mEditable)
{
mCaretColumn = mTextRows[mCaretRow - 1].size();
mTextRows[mCaretRow - 1] += mTextRows[mCaretRow];
mTextRows.erase(mTextRows.begin() + mCaretRow);
--mCaretRow;
}
break;
}
case Input::KEY_GUI_DELETE:
{
if (mCaretColumn < static_cast<int>(
mTextRows[mCaretRow].size()) && mEditable)
{
mTextRows[mCaretRow].erase(mCaretColumn, 1);
}
else if (mCaretColumn == static_cast<int>(
mTextRows[mCaretRow].size()) &&
mCaretRow < (static_cast<int>(mTextRows.size()) - 1) &&
mEditable)
{
mTextRows[mCaretRow] += mTextRows[mCaretRow + 1];
mTextRows.erase(mTextRows.begin() + mCaretRow + 1);
}
break;
}
case Input::KEY_GUI_PAGE_UP:
{
gcn::Widget* par = getParent();
if (par)
{
int rowsPerPage = par->getChildrenArea().height
/ getFont()->getHeight();
mCaretRow -= rowsPerPage;
if (mCaretRow < 0)
mCaretRow = 0;
}
break;
}
case Input::KEY_GUI_PAGE_DOWN:
{
gcn::Widget* par = getParent();
if (par)
{
int rowsPerPage = par->getChildrenArea().height
/ getFont()->getHeight();
mCaretRow += rowsPerPage;
if (mCaretRow >= static_cast<int>(mTextRows.size()))
mCaretRow = mTextRows.size() - 1;
}
break;
}
case Input::KEY_GUI_TAB:
{
if (mEditable)
{
mTextRows[mCaretRow].insert(mCaretColumn, std::string(" "));
mCaretColumn += 4;
}
break;
}
default:
{
if (key.isCharacter() && mEditable)
{
mTextRows[mCaretRow].insert(mCaretColumn,
std::string(1, static_cast<char>(key.getValue())));
++ mCaretColumn;
}
break;
}
}
adjustSize();
scrollToCaret();
keyEvent.consume();
}
bool TextBox::keyPress(const Key& key)
{
bool ret = false;
if (key.getValue() == Key::K_LEFT)
{
mCaretColumn = UTF8GetPrev(mTextRows[mCaretRow], mCaretColumn);
if (mCaretColumn < 0)
{
--mCaretRow;
if (mCaretRow < 0)
{
mCaretRow = 0;
mCaretColumn = 0;
}
else
{
mCaretColumn = mTextRows[mCaretRow].size();
}
}
ret = true;
}
else if (key.getValue() == Key::K_RIGHT)
{
mCaretColumn = UTF8GetNext(mTextRows[mCaretRow], mCaretColumn);
if (mCaretColumn > (int)mTextRows[mCaretRow].size())
{
++mCaretRow;
if (mCaretRow >= (int)mTextRows.size())
{
mCaretRow = mTextRows.size() - 1;
if (mCaretRow < 0)
{
mCaretRow = 0;
}
mCaretColumn = mTextRows[mCaretRow].size();
}
else
{
mCaretColumn = 0;
}
}
ret = true;
}
else if (key.getValue() == Key::K_DOWN)
{
setCaretRow(mCaretRow + 1);
ret = true;
}
else if (key.getValue() == Key::K_UP)
{
setCaretRow(mCaretRow - 1);
ret = true;
}
else if (key.getValue() == Key::K_HOME)
{
mCaretColumn = 0;
ret = true;
}
else if (key.getValue() == Key::K_END)
{
mCaretColumn = mTextRows[mCaretRow].size();
ret = true;
}
else if (key.getValue() == Key::K_ENTER && mEditable)
{
mTextRows.insert(mTextRows.begin() + mCaretRow + 1,
mTextRows[mCaretRow].substr(mCaretColumn, mTextRows[mCaretRow].size() - mCaretColumn));
mTextRows[mCaretRow].resize(mCaretColumn);
++mCaretRow;
mCaretColumn = 0;
ret = true;
}
else if (key.getValue() == Key::K_BACKSPACE
&& mCaretColumn != 0
&& mEditable)
{
int newpos = UTF8GetPrev(mTextRows[mCaretRow], mCaretColumn);
mTextRows[mCaretRow].erase(newpos, mCaretColumn - newpos);
mCaretColumn = newpos;
ret = true;
}
else if (key.getValue() == Key::K_BACKSPACE
&& mCaretColumn == 0
&& mCaretRow != 0
&& mEditable)
{
mCaretColumn = mTextRows[mCaretRow - 1].size();
mTextRows[mCaretRow - 1] += mTextRows[mCaretRow];
mTextRows.erase(mTextRows.begin() + mCaretRow);
--mCaretRow;
ret = true;
}
else if (key.getValue() == Key::K_DELETE
&& mCaretColumn < (int)mTextRows[mCaretRow].size()
&& mEditable)
{
int newpos = UTF8GetNext(mTextRows[mCaretRow], mCaretColumn);
mTextRows[mCaretRow].erase(mCaretColumn, newpos - mCaretColumn);
ret = true;
}
else if (key.getValue() == Key::K_DELETE
&& mCaretColumn == (int)mTextRows[mCaretRow].size()
&& mCaretRow < ((int)mTextRows.size() - 1)
&& mEditable)
{
mTextRows[mCaretRow] += mTextRows[mCaretRow + 1];
mTextRows.erase(mTextRows.begin() + mCaretRow + 1);
ret = true;
}
else if(key.getValue() == Key::K_PAGE_UP)
{
int w, h, rowsPerPage;
getParent()->getDrawSize(w, h, this);
rowsPerPage = h / getFont()->getHeight();
mCaretRow -= rowsPerPage;
if (mCaretRow < 0)
{
mCaretRow = 0;
}
ret = true;
}
else if(key.getValue() == Key::K_PAGE_DOWN)
{
int w, h, rowsPerPage;
getParent()->getDrawSize(w, h, this);
rowsPerPage = h / getFont()->getHeight();
mCaretRow += rowsPerPage;
if (mCaretRow >= (int)mTextRows.size())
{
mCaretRow = mTextRows.size() - 1;
}
ret = true;
}
else if(key.getValue() == Key::K_TAB
&& mEditable)
{
mTextRows[mCaretRow].insert(mCaretColumn,std::string(" "));
mCaretColumn += 4;
ret = true;
}
else if (key.getValue() == 'v' - 'a' + 1 && mEditable) // ctrl-v
{
std::string str;
if (GetClipboard(str) >= 0) {
for (size_t i = 0; i < str.size(); ++i) {
keyPress(Key(str[i]));
}
ret = true;
}
}
else if (key.isCharacter()
&& mEditable)
{
mTextRows[mCaretRow].insert(mCaretColumn,key.toString());
mCaretColumn = UTF8GetNext(mTextRows[mCaretRow], mCaretColumn);
ret = true;
}
adjustSize();
scrollToCaret();
return ret;
}
void TextBox::keyPressed(KeyEvent& keyEvent)
{
Key key = keyEvent.getKey();
if (key.getValue() == Key::Left)
mText->setCaretPosition(mText->getCaretPosition() - 1);
else if (key.getValue() == Key::Right)
mText->setCaretPosition(mText->getCaretPosition() + 1);
else if (key.getValue() == Key::Down)
mText->setCaretRow(mText->getCaretRow() + 1);
else if (key.getValue() == Key::Up)
mText->setCaretRow(mText->getCaretRow() - 1);
else if (key.getValue() == Key::Home)
mText->setCaretColumn(0);
else if (key.getValue() == Key::End)
mText->setCaretColumn(mText->getNumberOfCharacters(mText->getCaretRow()));
else if (key.getValue() == Key::Enter && mEditable)
mText->insert('\n');
else if (key.getValue() == Key::Backspace && mEditable)
mText->remove(-1);
else if (key.getValue() == Key::Delete && mEditable)
mText->remove(1);
else if(key.getValue() == Key::PageUp)
{
Widget* par = getParent();
if (par != NULL)
{
int rowsPerPage = par->getChildrenArea().height / getFont()->getHeight();
mText->setCaretRow(mText->getCaretRow() - rowsPerPage);
}
}
else if(key.getValue() == Key::PageDown)
{
Widget* par = getParent();
if (par != NULL)
{
int rowsPerPage = par->getChildrenArea().height / getFont()->getHeight();
mText->setCaretRow(mText->getCaretRow() + rowsPerPage);
}
}
else if(key.getValue() == Key::Tab && mEditable)
{
mText->insert(' ');
mText->insert(' ');
mText->insert(' ');
mText->insert(' ');
}
else if (key.isCharacter() && mEditable)
mText->insert(key.getValue());
adjustSize();
scrollToCaret();
keyEvent.consume();
}
void TextField::setRightPadding( int padding )
{
rightPadding = padding;
scrollToCaret(false,true);
relocateCaret();
}
void TextField::setTextAlignment( AlignmentEnum alignment )
{
textAlign = alignment;
scrollToCaret(false,true);
relocateCaret();
}
