void
QUimTextUtil::QTextEditPositionBackward( int *cursor_para, int *cursor_index )
{
QTextEdit *edit = (QTextEdit *)mWidget;
int preedit_len, preedit_cursor_pos;
int para, index;
int current_para, current_index;
current_para = *cursor_para;
current_index = *cursor_index;
if ( ! mPreeditSaved ) {
preedit_len = mIc->getPreeditString().length();
preedit_cursor_pos = mIc->getPreeditCursorPosition();
} else {
preedit_len = 0;
preedit_cursor_pos = 0;
}
edit->getCursorPosition( ¶, &index );
if ( current_para == para && current_index > ( index - preedit_cursor_pos ) && ( current_index <= ( index - preedit_cursor_pos + preedit_len ) ) )
current_index = index - preedit_cursor_pos;
if ( current_index > 0 )
current_index--;
else {
if ( current_para > 0 ) {
current_para--;
current_index = edit->paragraphLength( current_para );
}
}
*cursor_para = current_para;
*cursor_index = current_index;
}
void
QUimTextUtil::QTextEditPositionForward( int *cursor_para, int *cursor_index )
{
QTextEdit *edit = (QTextEdit *)mWidget;
int n_para = edit->paragraphs();
int preedit_len, preedit_cursor_pos;
int current_para_len;
int para, index;
int current_para, current_index;
current_para = *cursor_para;
current_index = *cursor_index;
current_para_len = edit->paragraphLength( current_para );
if ( ! mPreeditSaved ) {
preedit_len = mIc->getPreeditString().length();
preedit_cursor_pos = mIc->getPreeditCursorPosition();
} else {
preedit_len = 0;
preedit_cursor_pos = 0;
}
edit->getCursorPosition( ¶, &index );
if ( current_para == para && current_index >= ( index - preedit_cursor_pos ) && current_index < ( index - preedit_cursor_pos + preedit_len ) )
current_index = index - preedit_cursor_pos + preedit_len;
if ( current_para == n_para - 1 ) {
if ( current_index < current_para_len )
current_index++;
} else {
if ( current_index < current_para_len )
current_index++;
else {
current_para++;
current_index = 0;
}
}
*cursor_para = current_para;
*cursor_index = current_index;
}
int
QUimTextUtil::deletePrimaryTextInQTextEdit( enum UTextOrigin origin,
int former_req_len,
int latter_req_len )
{
QTextEdit *edit = (QTextEdit *)mWidget;
int i;
int start_para, start_index, end_para, end_index, para, index;
int n_para;
savePreedit();
edit->getCursorPosition( ¶, &index );
n_para = edit->paragraphs();
switch ( origin ) {
case UTextOrigin_Cursor:
start_index = index;
start_para = para;
end_index = start_index;
end_para = para;
if ( former_req_len >= 0 ) {
for ( i = 0; i < former_req_len; i++ )
QTextEditPositionBackward( &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 {
restorePreedit();
return -1;
}
}
if ( latter_req_len >= 0 ) {
for ( i = 0; i < latter_req_len; i++ )
QTextEditPositionForward( &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 {
restorePreedit();
return -1;
}
}
break;
case UTextOrigin_Beginning:
start_para = 0;
start_index = 0;
end_para = start_para;
end_index = start_index;
if ( latter_req_len >= 0 ) {
for ( i = 0; i < latter_req_len; i++ )
QTextEditPositionForward( &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 {
restorePreedit();
return -1;
}
}
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 ( i = 0; i < former_req_len; i++ )
QTextEditPositionBackward( &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 {
restorePreedit();
return -1;
}
}
break;
case UTextOrigin_Unspecified:
default:
restorePreedit();
return -1;
}
edit->setSelection( start_para, start_index, end_para, end_index, 1 );
edit->removeSelectedText( 1 );
edit->setCursorPosition( start_para, start_index );
restorePreedit();
return 0;
}
int
QUimTextUtil::acquirePrimaryTextInQTextEdit( enum UTextOrigin origin,
int former_req_len,
int latter_req_len,
char **former, char **latter )
{
QTextEdit *edit = (QTextEdit *)mWidget;
QString text;
int i;
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;
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 ( i = 0; i < former_req_len; i++ )
QTextEditPositionBackward( &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().utf8() );
if ( latter_req_len >= 0 ) {
for ( i = 0; i < latter_req_len; i++ )
QTextEditPositionForward( &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().utf8() );
break;
case UTextOrigin_Beginning:
*former = NULL;
start_para = 0;
start_index = 0;
end_para = start_para;
end_index = start_index;
if ( latter_req_len >= 0 ) {
for ( i = 0; i < latter_req_len; i++ )
QTextEditPositionForward( &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.utf8() );
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 ( i = 0; i < former_req_len; i++ )
QTextEditPositionBackward( &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.utf8() );
*latter = NULL;
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;
}
