本文整理汇总了C++中QTextEdit::setCursorPosition方法的典型用法代码示例。如果您正苦于以下问题：C++ QTextEdit::setCursorPosition方法的具体用法？C++ QTextEdit::setCursorPosition怎么用？C++ QTextEdit::setCursorPosition使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QTextEdit的用法示例。
在下文中一共展示了QTextEdit::setCursorPosition方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
//.........这里部分代码省略.........
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;
}示例2: QTextEditPositionForward
int
QUimTextUtil::deleteSelectionTextInQTextEdit( enum UTextOrigin origin,
int former_req_len,
int latter_req_len )
{
QTextEdit *edit = (QTextEdit *)mWidget;
QString text;
int len, newline, i;
int para, index;
int sel_para_from, sel_index_from, sel_para_to, sel_index_to;
int start_para, start_index, end_para, end_index;
bool cursor_at_beginning = false;
if ( ! edit->hasSelectedText() )
return -1;
edit->getCursorPosition( ¶, &index );
edit->getSelection( &sel_para_from, &sel_index_from, &sel_para_to, &sel_index_to, 0 );
if ( para == sel_para_from && index == sel_index_from )
cursor_at_beginning = true;
text = edit->selectedText();
len = text.length();
start_para = sel_para_from;
start_index = sel_index_from;
end_para = sel_para_to;
end_index = sel_index_to;
if ( origin == UTextOrigin_Beginning ||
( origin == UTextOrigin_Cursor && cursor_at_beginning ) ) {
edit->setCursorPosition( sel_para_from, sel_index_from );
if ( latter_req_len >= 0 ) {
if ( len > latter_req_len ) {
end_para = sel_para_from;
end_index = sel_index_from;
for ( i = 0; i < latter_req_len; i++)
QTextEditPositionForward( &end_para, &end_index );
}
} else {
if (! ( ~latter_req_len & ( ~UTextExtent_Line | ~UTextExtent_Full ) ) )
return -1;
if ( latter_req_len == UTextExtent_Line && ( ( newline = text.find('\n') ) != -1 ) ) {
end_para = sel_para_from;
end_index = sel_index_from + newline;
}
}
} else if ( origin == UTextOrigin_End ||
( origin == UTextOrigin_Cursor && !cursor_at_beginning ) ) {
if ( former_req_len >= 0 ) {
if ( len > former_req_len ) {
start_para = sel_para_to;
start_index = sel_index_to;
for ( i = 0; i < former_req_len; i++)
QTextEditPositionBackward( &start_para, &start_index );
}
} else {
if (! ( ~former_req_len & ( ~UTextExtent_Line | ~UTextExtent_Full ) ) )
return -1;
if ( former_req_len == UTextExtent_Line && ( ( newline = text.findRev( '\n' ) ) != -1 ) ) {
start_para = sel_para_to;
start_index = 0;
}
}
} else {
return -1;
}
edit->setSelection( start_para, start_index, end_para, end_index, 1 );
edit->removeSelectedText( 1 );
return 0;
}