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! Expands the layout to have \a newRowCount rows and \a newColumnCount columns. So the last valid row index will be \a newRowCount-1, the last val

! Returns an expanded range that contains this and \a otherRange. It is assumed that both this range and \a otherRange are normalized (see \ref no

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! \internal Finds the smallest index of \a data, whose points x value is just above \a x. Assumes x values in \a data points are ordered ascend

! \internal Finds the smallest index of \a data, whose points y value is just above \a y. Assumes y values in \a data points are ordered descen

! \internal Finds the highest index of \a data, whose points x value is just below \a x. Assumes x values in \a data points are ordered ascendi

! \internal Finds the highest index of \a data, whose points y value is just below \a y. Assumes y values in \a data points are ordered descend

! \internal If \ref setAutoTicks is set to true, this function is called by \ref setupTickVectors to generate reasonable tick positions (and su

! \internal Returns a hash that allows uniquely identifying whether the label parameters have changed such that the cached labels must be refre

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! \internal Returns the polygon of a single bar with \a key and \a value. The Polygon is open at the bottom and shifted according to the bar st

! \internal Returns the pen that is used to draw the axis base line. Depending on the selection state, this is either mSelectedBasePen or mBase

! \internal Returns the pen used to paint the border of the legend, taking into account the selection state of the legend box. */

! \internal Returns the brush used to paint the background of the legend, taking into account the selection state of the legend box. */

! \internal Generates the polygon needed for drawing channel fills between this graph (data passed via \a lineData) and the graph specified by

! \internal called by QCPCurve::draw to generate a point vector (in pixel coordinates) which represents the line of the curve. Line segments

! \internal Returns the final (tight) rect the pixmap is drawn in, depending on the current item positions and scaling settings. The outpu

! \internal Returns the font that shall be used to draw text, taking into account the selection state of this item. */

! \internal Returns the pen that shall be used to draw the icon border, taking into account the selection state of this item. */

! \internal Places the raw data points needed for an impulse plot in \a lineData. As for all plot data retrieval functions, \a scatterData just

单例模式

! \internal Returns the color that is used to draw the axis label. Depending on the selection state, this is either mSelectedLabelColor or mLab

! \internal Returns the font that is used to draw the axis label. Depending on the selection state, this is either mSelectedLabelFont or mLabel

! \internal Places the raw data points needed for a normal linearly connected graph in \a linePixelData. As for all plot data retrieval functi

获取最右边的Label的Index

! \internal Simulates the steps done by \ref placeTickLabel by calculating bounding boxes of the text label to be drawn, depending on number fo

! \internal Places the maximum column widths and row heights into \a maxColWidths and \a maxRowHeights respectively. The maximum height of

! \internal Places the minimum column widths and row heights into \a minColWidths and \a minRowHeights respectively. The minimum height of

! \internal This function is part of the curve optimization algorithm of \ref getCurveData. In situations where a single segment skips over

! \internal This function is part of the curve optimization algorithm of \ref getCurveData. This method is used in case the current segment

! Returns the part of the axis that is hit by \a pos (in pixels). The return value of this function is independent of the user-selectable parts de

! \internal Returns the spacing in pixels which is between this \a bars and the following one, both at the key coordinate \a keyCoord. \no

获取双向链表中的上一个控件

! \internal Returns the \a lineData and \a scatterData that need to be plotted for this graph taking into consideration the current axis ranges

! \internal Returns the section of the line defined by \a start and \a end, that is visible in the specified \a rect. This is a helper funct

! \internal Returns the section of the straight line defined by \a base and direction vector \a vec, that is visible in the specified \a rect.

! \internal This function is part of the curve optimization algorithm of \ref getCurveData. It returns the region of the given point (\a x,

! \internal If line style is \ref lsNone and the scatter style's shape is not \ref QCPScatterStyle::ssNone, this function serves at providing t

! \internal This is a helper function for the implementation of \ref updateLayout in subclasses. It calculates the sizes of one-dimensional

! \internal This function is called to find at which value to start drawing the base of a bar at \a key, when it is stacked on top of another Q

! \internal Places the raw data points needed for a step plot with centered steps in \a lineData. As for all plot data retrieval functions, \a

! \internal Places the raw data points needed for a step plot with left oriented steps in \a lineData. As for all plot data retrieval functions

! \internal Places the raw data points needed for a step plot with right oriented steps in \a lineData. As for all plot data retrieval function

! \internal Returns the pen that is used to draw the subticks. Depending on the selection state, this is either mSelectedSubTickPen or mSubTick

! \internal Returns the text color that shall be used to draw text, taking into account the selection state of this item. */

! \internal Returns the point that must be given to the QPainter::drawText function (which expects the top left point of the text rect), accord

! \internal Returns the color that is used to draw the tick labels. Depending on the selection state, this is either mSelectedTickLabelColor or

! \internal This is a \ref placeTickLabel helper function. Transforms the passed \a text and \a font to a tickLabelData structure that can t

! \internal This is a \ref placeTickLabel helper function. Calculates the offset at which the top left corner of the specified tick label sh

! \internal Returns the font that is used to draw the tick labels. Depending on the selection state, this is either mSelectedTickLabelFont or m

! \internal Returns the pen that is used to draw the (major) ticks. Depending on the selection state, this is either mSelectedTickPen or mTickP

! \internal This function is part of the curve optimization algorithm of \ref getCurveData. This method assumes that the \ref mayTraverse te

! \internal This function is part of the curve optimization algorithm of \ref getCurveData. This method assumes that the \ref getTraverse te

! \internal called by \ref getPreparedData to determine which data (key) range is visible at the current key axis range setting, so only that

! Returns the number of currently existing graphs in the plot \see graph, addGraph */

! Returns a list of all the graphs that have this axis as key or value axis. \see plottables, items */

! Returns whether this item has an anchor with the specified \a name. Note that you can check for positions with this function, too. This is be

! Returns whether the cell at \a row and \a column exists and contains a valid element, i.e. isn't empty. \see element */

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! Returns whether this QCustomPlot contains the \a item. \see addItem */

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! Inserts a new column with empty cells at the column index \a newIndex. Valid values for \a newIndex range from 0 (inserts a row at the left) to

! Inserts a new row with empty cells at the row index \a newIndex. Valid values for \a newIndex range from 0 (inserts a row at the top) to \a rowC

! Returns the alignment of the element with the specified \a index. The alignment only has a meaning, if the inset placement (\ref setInsetPlaceme

! Returns the placement type of the element with the specified \a index. */

! Returns the rect of the element with the specified \a index. The rect only has a meaning, if the inset placement (\ref setInsetPlacement) is \re

non-property methods:

! Returns the item at the pixel position \a pos. Items that only consist of single lines (e.g. \ref QCPItemLine or \ref QCPItemCurve) have a toler

! Returns the number of currently existing items in the plot \see item, addItem */

! Returns a list of all the items that are associated with this axis. An item is considered associated with an axis if at least one of its positio

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getters: