当前位置: 首页>>代码示例>>C++>>正文


C++ QStack::resize方法代码示例

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


在下文中一共展示了QStack::resize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: loadSettings

void PlotZoomer::loadSettings(QSettings &settings)
{
  settings.beginGroup("zoom");

  int zoomMode = settings.value("mode", int(PlotZoomer::ZoomBoth)).toInt();
  setZoomMode(PlotZoomer::ZoomMode(zoomMode));

  int zoomIndex = settings.value("index", -1).toInt();
  int stackSize = settings.beginReadArray("stack");
  QStack<QRectF> stack;
  stack.resize(stackSize);
  for (int i = 0; i < stackSize; ++i)
  {
    settings.setArrayIndex(i);
    read(settings, stack[i]);
  }
  settings.endArray();

  setZoomStack(stack, zoomIndex);

  if (stackSize <= 1)
  {
    zoomToFit(true);
  }

  settings.endGroup();
}
开发者ID:KazNX,项目名称:ocurves,代码行数:27,代码来源:plotzoomer.cpp

示例2: read

bool QMakeParser::read(ProFile *pro, const QString &in, int line, SubGrammar grammar)
{
    m_proFile = pro;
    m_lineNo = line;

    // Final precompiled token stream buffer
    QString tokBuff;
    // Worst-case size calculations:
    // - line marker adds 1 (2-nl) to 1st token of each line
    // - empty assignment "A=":2 =>
    //   TokHashLiteral(1) + hash(2) + len(1) + "A"(1) + TokAssign(1) + 0(1) +
    //   TokValueTerminator(1) == 8 (9)
    // - non-empty assignment "A=B C":5 =>
    //   TokHashLiteral(1) + hash(2) + len(1) + "A"(1) + TokAssign(1) + 2(1) +
    //   TokLiteral(1) + len(1) + "B"(1) +
    //   TokLiteral(1) + len(1) + "C"(1) + TokValueTerminator(1) == 14 (15)
    // - variable expansion: "$$f":3 =>
    //   TokVariable(1) + hash(2) + len(1) + "f"(1) = 5
    // - function expansion: "$$f()":5 =>
    //   TokFuncName(1) + hash(2) + len(1) + "f"(1) + TokFuncTerminator(1) = 6
    // - scope: "X:":2 =>
    //   TokHashLiteral(1) + hash(2) + len(1) + "A"(1) + TokCondition(1) +
    //   TokBranch(1) + len(2) + ... + len(2) + ... == 10
    // - test: "X():":4 =>
    //   TokHashLiteral(1) + hash(2) + len(1) + "A"(1) + TokTestCall(1) + TokFuncTerminator(1) +
    //   TokBranch(1) + len(2) + ... + len(2) + ... == 11
    // - "for(A,B):":9 =>
    //   TokForLoop(1) + hash(2) + len(1) + "A"(1) +
    //   len(2) + TokLiteral(1) + len(1) + "B"(1) + TokValueTerminator(1) +
    //   len(2) + ... + TokTerminator(1) == 14 (15)
    tokBuff.reserve((in.size() + 1) * 5);
    ushort *tokPtr = (ushort *)tokBuff.constData(); // Current writing position

    // Expression precompiler buffer.
    QString xprBuff;
    xprBuff.reserve(tokBuff.capacity()); // Excessive, but simple
    ushort *buf = (ushort *)xprBuff.constData();

    // Parser state
    m_blockstack.clear();
    m_blockstack.resize(1);

    QStack<ParseCtx> xprStack;
    xprStack.reserve(10);

    // We rely on QStrings being null-terminated, so don't maintain a global end pointer.
    const ushort *cur = (const ushort *)in.unicode();
    m_canElse = false;
  freshLine:
    m_state = StNew;
    m_invert = false;
    m_operator = NoOperator;
    m_markLine = m_lineNo;
    m_inError = false;
    int parens = 0; // Braces in value context
    int argc = 0;
    int wordCount = 0; // Number of words in currently accumulated expression
    int lastIndent = 0; // Previous line's indentation, to detect accidental continuation abuse
    bool lineMarked = true; // For in-expression markers
    ushort needSep = TokNewStr; // Met unquoted whitespace
    ushort quote = 0;
    ushort term = 0;

    Context context;
    ushort *ptr;
    if (grammar == ValueGrammar) {
        context = CtxPureValue;
        ptr = tokPtr + 2;
    } else {
        context = CtxTest;
        ptr = buf + 4;
    }
    ushort *xprPtr = ptr;

#define FLUSH_LHS_LITERAL() \
    do { \
        if ((tlen = ptr - xprPtr)) { \
            finalizeHashStr(xprPtr, tlen); \
            if (needSep) { \
                wordCount++; \
                needSep = 0; \
            } \
        } else { \
            ptr -= 4; \
        } \
    } while (0)

#define FLUSH_RHS_LITERAL() \
    do { \
        if ((tlen = ptr - xprPtr)) { \
            xprPtr[-2] = TokLiteral | needSep; \
            xprPtr[-1] = tlen; \
            if (needSep) { \
                wordCount++; \
                needSep = 0; \
            } \
        } else { \
            ptr -= 2; \
        } \
    } while (0)
//.........这里部分代码省略.........
开发者ID:venkatarajasekhar,项目名称:Qt,代码行数:101,代码来源:qmakeparser.cpp


注:本文中的QStack::resize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。