Biomedical Image Analysis Library
The Biomedical Image Analysis Library is a poweful tool for developers, physicians, researchers, engineers, and so on.
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A margin group allows synchronization of margin sides if working with multiple layout elements. More...
#include <qcustomplot.h>
Public Member Functions | |
QCPMarginGroup (QCustomPlot *parentPlot) | |
~QCPMarginGroup () | |
QList< QCPLayoutElement * > | elements (QCP::MarginSide side) const |
bool | isEmpty () const |
void | clear () |
Protected Member Functions | |
int | commonMargin (QCP::MarginSide side) const |
void | addChild (QCP::MarginSide side, QCPLayoutElement *element) |
void | removeChild (QCP::MarginSide side, QCPLayoutElement *element) |
Protected Attributes | |
QCustomPlot * | mParentPlot |
QHash< QCP::MarginSide, QList< QCPLayoutElement * > > | mChildren |
Friends | |
class | QCPLayoutElement |
A margin group allows synchronization of margin sides if working with multiple layout elements.
QCPMarginGroup allows you to tie a margin side of two or more layout elements together, such that they will all have the same size, based on the largest required margin in the group.
In certain situations it is desirable that margins at specific sides are synchronized across layout elements. For example, if one QCPAxisRect is below another one in a grid layout, it will provide a cleaner look to the user if the left and right margins of the two axis rects are of the same size. The left axis of the top axis rect will then be at the same horizontal position as the left axis of the lower axis rect, making them appear aligned. The same applies for the right axes. This is what QCPMarginGroup makes possible.
To add/remove a specific side of a layout element to/from a margin group, use the QCPLayoutElement::setMarginGroup method. To completely break apart the margin group, either call clear, or just delete the margin group.
First create a margin group:
Then set this group on the layout element sides:
Here, we've used the first two axis rects of the plot and synchronized their left margins with each other and their right margins with each other.
Definition at line 600 of file qcustomplot.h.
QCPMarginGroup::QCPMarginGroup | ( | QCustomPlot * | parentPlot | ) |
Creates a new QCPMarginGroup instance in parentPlot.
Definition at line 1543 of file qcustomplot.cpp.
QCPMarginGroup::~QCPMarginGroup | ( | ) |
Definition at line 1553 of file qcustomplot.cpp.
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Definition at line 1623 of file qcustomplot.cpp.
void QCPMarginGroup::clear | ( | ) |
Clears this margin group. The synchronization of the margin sides that use this margin group is lifted and they will use their individual margin sizes again.
Definition at line 1578 of file qcustomplot.cpp.
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Definition at line 1601 of file qcustomplot.cpp.
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Returns a list of all layout elements that have their margin side associated with this margin group.
Definition at line 608 of file qcustomplot.h.
bool QCPMarginGroup::isEmpty | ( | ) | const |
Returns whether this margin group is empty. If this function returns true, no layout elements use this margin group to synchronize margin sides.
Definition at line 1562 of file qcustomplot.cpp.
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Definition at line 1637 of file qcustomplot.cpp.
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Definition at line 625 of file qcustomplot.h.
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Definition at line 615 of file qcustomplot.h.
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Definition at line 614 of file qcustomplot.h.