void Text::setCaretPosition(int x, int y, Font* font)
{
if (mRows.empty())
return;
setCaretRow(y / font->getHeight());
setCaretColumn(font->getStringIndexAt(mRows[mCaretRow], x));
}
void TextBox::setTextRow(int row, const std::string& text)
{
mTextRows[row] = text;
if (mCaretRow == row)
{
setCaretColumn(mCaretColumn);
}
adjustSize();
}
void Text::setCaretRow(int row)
{
if (mRows.empty() || row < 0)
mCaretRow = 0;
else if (row >= (int)mRows.size())
mCaretRow = mRows.size() - 1;
else
mCaretRow = row;
setCaretColumn(mCaretColumn);
}
void TextBox::setCaretRow(int row)
{
mCaretRow = row;
if (mCaretRow >= (int)mTextRows.size())
{
mCaretRow = mTextRows.size() - 1;
}
if (mCaretRow < 0)
{
mCaretRow = 0;
}
setCaretColumn(mCaretColumn);
}
void TextBox::setCaretRowColumn(int row, int column)
{
setCaretRow(row);
setCaretColumn(column);
}
void Text::remove(int numberOfCharacters)
{
if (mRows.empty() || numberOfCharacters == 0)
return;
// We should remove characters left of the caret position.
if (numberOfCharacters < 0)
{
while (numberOfCharacters != 0)
{
// If the caret position is zero there is nothing
// more to do.
if (mCaretPosition == 0)
break;
// If we are at the end of the row
// and the row is not the first row we
// need to merge two rows.
if (mCaretColumn == 0 && mCaretRow != 0)
{
mRows[mCaretRow - 1] += mRows[mCaretRow];
mRows.erase(mRows.begin() + mCaretRow);
setCaretRow(mCaretRow - 1);
setCaretColumn(getNumberOfCharacters(mCaretRow));
}
else
{
mRows[mCaretRow].erase(mCaretColumn - 1, 1);
setCaretPosition(mCaretPosition - 1);
}
numberOfCharacters++;
}
}
// We should remove characters right of the caret position.
else if (numberOfCharacters > 0)
{
while (numberOfCharacters != 0)
{
// If all rows have been removed there is nothing
// more to do.
if (mRows.empty())
break;
// If we are at the end of row and the row
// is not the last row we need to merge two
// rows.
if (mCaretColumn == mRows[mCaretRow].size()
&& mCaretRow < (mRows.size() - 1))
{
mRows[mCaretRow] += mRows[mCaretRow + 1];
mRows.erase(mRows.begin() + mCaretRow + 1);
}
else
{
mRows[mCaretRow].erase(mCaretColumn, 1);
}
numberOfCharacters--;
}
}
}
