int
QUimTextUtil::acquireSelectionTextInQ3TextEdit( enum UTextOrigin origin,
int former_req_len,
int latter_req_len,
char **former, char **latter )
{
Q3TextEdit *edit = static_cast<Q3TextEdit *>( mWidget );
QString text;
int len, offset, newline;
int start_para, start_index, end_para, end_index;
int para, index;
bool cursor_at_beginning = false;
Qt::TextFormat format;
if ( ! edit->hasSelectedText() )
return -1;
format = edit->textFormat();
edit->setTextFormat( Qt::PlainText );
edit->getCursorPosition( ¶, &index );
edit->getSelection(&start_para, &start_index, &end_para, &end_index, 0 );
if ( para == start_para && index == start_index )
cursor_at_beginning = true;
text = edit->selectedText();
len = text.length();
if ( origin == UTextOrigin_Beginning ||
( origin == UTextOrigin_Cursor && cursor_at_beginning ) ) {
*former = 0;
offset = 0;
if ( latter_req_len >= 0 ) {
if ( len > latter_req_len )
offset = len - latter_req_len;
} else {
if (! ( ~latter_req_len & ( ~UTextExtent_Line | ~UTextExtent_Full ) ) ) {
edit->setTextFormat( format );
return -1;
}
if ( latter_req_len == UTextExtent_Line && ( ( newline = text.indexOf( '\n' ) ) != -1 ) )
offset = len - newline;
}
*latter = strdup( text.left( len - offset ).toUtf8().data() );
} else if ( origin == UTextOrigin_End ||
( origin == UTextOrigin_Cursor && !cursor_at_beginning ) ) {
offset = 0;
if ( former_req_len >= 0 ) {
if ( len > former_req_len )
offset = len - former_req_len;
} else {
if (! ( ~former_req_len & ( ~UTextExtent_Line | ~UTextExtent_Full ) ) ) {
edit->setTextFormat( format );
return -1;
}
if ( former_req_len == UTextExtent_Line && ( ( newline = text.lastIndexOf( '\n' ) ) != -1 ) )
offset = newline + 1;
}
*former = strdup( text.mid( offset, len - offset ).toUtf8().data() );
*latter = 0;
} else {
edit->setTextFormat( format );
return -1;
}
edit->setTextFormat( format );
return 0;
}
int
QUimTextUtil::acquirePrimaryTextInQ3TextEdit( enum UTextOrigin origin,
int former_req_len,
int latter_req_len,
char **former, char **latter )
{
Q3TextEdit *edit = static_cast<Q3TextEdit *>( mWidget );
QString text;
int start_para, start_index, end_para, end_index, para, index;
int n_para;
int preedit_len, preedit_cursor_pos;
int sel_start_para, sel_start_index, sel_end_para, sel_end_index;
Qt::TextFormat format;
format = edit->textFormat();
edit->setTextFormat( Qt::PlainText );
edit->getCursorPosition( ¶, &index ); // including preedit string
// keep current selection
edit->getSelection( &sel_start_para, &sel_start_index, &sel_end_para,
&sel_end_index, 0 );
preedit_len = mIc->getPreeditString().length();
preedit_cursor_pos = mIc->getPreeditCursorPosition();
n_para = edit->paragraphs();
switch ( origin ) {
case UTextOrigin_Cursor:
start_index = index - preedit_cursor_pos;
start_para = para;
end_index = start_index + preedit_len;
end_para = para;
if ( former_req_len >= 0 ) {
for ( int i = 0; i < former_req_len; i++ )
Q3TextEditPositionBackward( &start_para, &start_index );
} else {
if ( former_req_len == UTextExtent_Line )
start_index = 0;
else if ( former_req_len == UTextExtent_Full ) {
start_para = 0;
start_index = 0;
} else {
edit->setTextFormat( format );
return -1;
}
}
edit->setSelection( start_para, start_index, para, index - preedit_cursor_pos, 0 );
*former = strdup( edit->selectedText().toUtf8().data() );
if ( latter_req_len >= 0 ) {
for ( int i = 0; i < latter_req_len; i++ )
Q3TextEditPositionForward( &end_para, &end_index );
} else {
if ( latter_req_len == UTextExtent_Line ) {
end_index = edit->paragraphLength( end_para );
} else if ( latter_req_len == UTextExtent_Full ) {
end_para = n_para - 1;
end_index = edit->paragraphLength( end_para );
} else {
edit->setTextFormat( format );
return -1;
}
}
edit->setSelection( para, index - preedit_cursor_pos + preedit_len,
end_para, end_index, 0 );
*latter = strdup( edit->selectedText().toUtf8().data() );
break;
case UTextOrigin_Beginning:
*former = 0;
start_para = 0;
start_index = 0;
end_para = start_para;
end_index = start_index;
if ( latter_req_len >= 0 ) {
for ( int i = 0; i < latter_req_len; i++ )
Q3TextEditPositionForward( &end_para, &end_index );
} else {
if ( latter_req_len == UTextExtent_Line )
end_index = edit->paragraphLength( end_para );
else if ( latter_req_len == UTextExtent_Full ) {
end_para = n_para - 1;
end_index = edit->paragraphLength( end_para );
} else {
edit->setTextFormat( format );
return -1;
}
}
if ( end_para < para || ( end_para == para && end_index <= ( index - preedit_cursor_pos ) ) ) {
edit->setSelection( start_para, start_index, end_para, end_index, 0 );
text = edit->selectedText();
} else {
edit->setSelection( start_para, start_index, para, index - preedit_cursor_pos, 0 );
text = edit->selectedText();
edit->setSelection( para, index - preedit_cursor_pos + preedit_len, end_para, end_index, 0 );
text += edit->selectedText();
}
*latter = strdup( text.toUtf8().data() );
break;
case UTextOrigin_End:
end_para = n_para - 1;
end_index = edit->paragraphLength( end_para );
start_para = end_para;
start_index = end_index;
if ( former_req_len >= 0 ) {
for ( int i = 0; i < former_req_len; i++ )
Q3TextEditPositionBackward( &start_para, &start_index );
} else {
if ( former_req_len == UTextExtent_Line )
start_index = 0;
else if ( former_req_len == UTextExtent_Full ) {
start_para = 0;
start_index = 0;
} else {
edit->setTextFormat( format );
return -1;
}
}
if ( start_para > para || ( start_para == para && start_index >= ( index - preedit_cursor_pos + preedit_len ) ) ) {
edit->setSelection( start_para, start_index, end_para, end_index, 0 );
text = edit->selectedText();
} else {
edit->setSelection( start_para, start_index, para, index - preedit_cursor_pos, 0 );
text = edit->selectedText();
edit->setSelection( para, index - preedit_cursor_pos + preedit_len, end_para, end_index, 0 );
text += edit->selectedText();
}
*former = strdup( text.toUtf8().data() );
*latter = 0;
break;
case UTextOrigin_Unspecified:
default:
edit->setTextFormat( format );
return -1;
}
if ( sel_start_para != -1 && sel_start_index != -1 && sel_end_para != -1 &&
sel_end_index != -1 )
edit->setSelection( sel_start_index, sel_start_index, sel_end_para, sel_end_index, 0 );
else
edit->removeSelection( 0 );
edit->setCursorPosition( para, index );
edit->setTextFormat( format );
return 0;
}