C++ QTextEdit::getSelection方法代码示例

本文整理汇总了C++中QTextEdit::getSelection方法的典型用法代码示例。如果您正苦于以下问题：C++ QTextEdit::getSelection方法的具体用法？C++ QTextEdit::getSelection怎么用？C++ QTextEdit::getSelection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::getSelection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

int
QUimTextUtil::acquireSelectionTextInQTextEdit( enum UTextOrigin origin,
                                               int former_req_len,
                                               int latter_req_len,
                                               char **former, char **latter )
{
    QTextEdit *edit = (QTextEdit *)mWidget;
    QString text;
    int len, offset, newline;
    int start_para, start_index, end_para, end_index;
    int para, index;
    bool cursor_at_beginning = false;
    TextFormat format;

    if ( ! edit->hasSelectedText() )
        return -1;

    format = edit->textFormat();
    edit->setTextFormat( Qt::PlainText );

    edit->getCursorPosition( &para, &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 = NULL;
        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.find( '\n' ) ) != -1 ) )
                offset = len - newline;
        }
        *latter = strdup( text.left( len - offset ).utf8() );
    } 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.findRev( '\n' ) ) != -1 ) )
                offset = newline + 1;
        }
        *former = strdup( text.mid( offset, len - offset ).utf8() );
        *latter = NULL;
    } else {
        edit->setTextFormat( format );
        return -1;
    }

    edit->setTextFormat( format );
    return 0;
}

开发者ID:DirtYiCE，项目名称:uim，代码行数:71，代码来源:qtextutil.cpp

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( &para, &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;
}

开发者ID:DirtYiCE，项目名称:uim，代码行数:75，代码来源:qtextutil.cpp

注：本文中的QTextEdit::getSelection方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。