OpenMS
HistogramWidget Class Reference

Widget which can visualize a histogram. More...

#include <OpenMS/VISUAL/HistogramWidget.h>

Inheritance diagram for HistogramWidget:
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Collaboration diagram for HistogramWidget:
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Public Slots

void showSplitters (bool on)
 Shows the splitters if on is true. Hides them otherwise. More...
 
void setRightSplitter (double pos)
 Sets the value of the right splitter. More...
 
void setLeftSplitter (double pos)
 Sets the value of the left splitter. More...
 
void setLogMode (bool log_mode)
 Enables/disables log mode. More...
 

Public Member Functions

 HistogramWidget (const Math::Histogram<> &distribution, QWidget *parent=nullptr)
 Constructor. More...
 
 ~HistogramWidget () override
 Destructor. More...
 
double getLeftSplitter () const
 Returns the value f the lower splitter. More...
 
double getRightSplitter () const
 Returns the value of the upper splitter. More...
 
void setLegend (const String &legend)
 Set axis legends. More...
 

Protected Member Functions

void invalidate_ ()
 Repaints the contents to the buffer and calls update() More...
 

Protected Attributes

Math::Histogram dist_
 The histogram to display. More...
 
bool show_splitters_
 Flag that indicates if splitters are shown. More...
 
double left_splitter_
 Value of the right splitter. More...
 
double right_splitter_
 Value of the right splitter. More...
 
UInt moving_splitter_
 The splitter that is currently dragged (0=none, 1=left, 2=right) More...
 
AxisWidgetbottom_axis_
 X axis. More...
 
UInt margin_
 Margin around plot. More...
 
QPixmap buffer_
 Internal buffer for the double buffering. More...
 
bool log_mode_
 Flag that indicates the current mode. More...
 

reimplemented Qt events

void paintEvent (QPaintEvent *) override
 
void mousePressEvent (QMouseEvent *) override
 
void mouseReleaseEvent (QMouseEvent *) override
 
void mouseMoveEvent (QMouseEvent *) override
 
void resizeEvent (QResizeEvent *) override
 
void showContextMenu (const QPoint &pos)
 Context menu event. More...
 

Detailed Description

Widget which can visualize a histogram.

It can also be used to define a left and right boundary inside the values. It supports normal and log scaling via the context menu.

Constructor & Destructor Documentation

◆ HistogramWidget()

HistogramWidget ( const Math::Histogram<> &  distribution,
QWidget parent = nullptr 
)

Constructor.

◆ ~HistogramWidget()

~HistogramWidget ( )
override

Destructor.

Member Function Documentation

◆ getLeftSplitter()

double getLeftSplitter ( ) const

Returns the value f the lower splitter.

◆ getRightSplitter()

double getRightSplitter ( ) const

Returns the value of the upper splitter.

◆ invalidate_()

void invalidate_ ( )
protected

Repaints the contents to the buffer and calls update()

◆ mouseMoveEvent()

void mouseMoveEvent ( QMouseEvent *  )
overrideprotected

◆ mousePressEvent()

void mousePressEvent ( QMouseEvent *  )
overrideprotected

◆ mouseReleaseEvent()

void mouseReleaseEvent ( QMouseEvent *  )
overrideprotected

◆ paintEvent()

void paintEvent ( QPaintEvent *  )
overrideprotected

◆ resizeEvent()

void resizeEvent ( QResizeEvent *  )
overrideprotected

◆ setLeftSplitter

void setLeftSplitter ( double  pos)
slot

Sets the value of the left splitter.

◆ setLegend()

void setLegend ( const String legend)

Set axis legends.

◆ setLogMode

void setLogMode ( bool  log_mode)
slot

Enables/disables log mode.

◆ setRightSplitter

void setRightSplitter ( double  pos)
slot

Sets the value of the right splitter.

◆ showContextMenu

void showContextMenu ( const QPoint &  pos)
protectedslot

Context menu event.

◆ showSplitters

void showSplitters ( bool  on)
slot

Shows the splitters if on is true. Hides them otherwise.

Member Data Documentation

◆ bottom_axis_

AxisWidget* bottom_axis_
protected

X axis.

◆ buffer_

QPixmap buffer_
protected

Internal buffer for the double buffering.

◆ dist_

Math::Histogram dist_
protected

The histogram to display.

◆ left_splitter_

double left_splitter_
protected

Value of the right splitter.

◆ log_mode_

bool log_mode_
protected

Flag that indicates the current mode.

◆ margin_

UInt margin_
protected

Margin around plot.

◆ moving_splitter_

UInt moving_splitter_
protected

The splitter that is currently dragged (0=none, 1=left, 2=right)

◆ right_splitter_

double right_splitter_
protected

Value of the right splitter.

◆ show_splitters_

bool show_splitters_
protected

Flag that indicates if splitters are shown.