libyui  3.4.2
YBarGraph Class Referenceabstract

A graph showing partitioning of a whole. More...

#include <YBarGraph.h>

Inheritance diagram for YBarGraph:
YWidget

Public Member Functions

virtual ~YBarGraph ()
 Destructor.
 
virtual const char * widgetClass () const
 Return a descriptive name of this widget class for logging, debugging etc.
 
void addSegment (const YBarGraphSegment &segment)
 Add one segment. More...
 
void deleteAllSegments ()
 Delete all segments.
 
int segments ()
 Return the current number of segments.
 
const YBarGraphSegmentsegment (int segmentIndex) const
 Return the segment with the specified index (from 0 on). More...
 
void setValue (int segmentIndex, int newValue)
 Set the value of the segment with the specifie index (from 0 on). More...
 
void setLabel (int segmentIndex, const std::string &newLabel)
 Set the label of the segment with the specified index (from 0 on). More...
 
void setSegmentColor (int segmentIndex, const YColor &color)
 Set the background color of the segment with the specified index (from 0 on). More...
 
void setTextColor (int segmentIndex, const YColor &color)
 Set the text color of the segment with the specified index (from 0 on). More...
 
virtual bool setProperty (const std::string &propertyName, const YPropertyValue &val)
 Set a property. More...
 
virtual YPropertyValue getProperty (const std::string &propertyName)
 Get a property. More...
 
virtual const YPropertySetpropertySet ()
 Return this class's property set. More...
 
- Public Member Functions inherited from YWidget
virtual ~YWidget ()
 Destructor.
 
virtual std::string debugLabel () const
 Returns a descriptive label of this widget instance. More...
 
std::string helpText () const
 Return the help text for this widget.
 
void setHelpText (const std::string &helpText)
 Set a help text for this widget. More...
 
bool hasChildren () const
 Returns 'true' if this widget has any children.
 
YWidgetfirstChild () const
 Returns the first child or 0 if there is none. More...
 
YWidgetlastChild () const
 Returns the last child or 0 if there is none.
 
YWidgetListIterator childrenBegin () const
 Return an iterator that points to the first child or to childrenEnd() if there are no children.
 
YWidgetListIterator childrenEnd () const
 Return an interator that points after the last child.
 
YWidgetListConstIterator childrenConstBegin () const
 Return a const iterator that points to the first child or to childrenEnd() if there are no children.
 
YWidgetListConstIterator childrenConstEnd () const
 Return a const interator that points after the last child.
 
YWidgetListIterator begin ()
 A helper for the range-based "for" loop. More...
 
YWidgetListIterator end ()
 A helper for the range-based "for" loop. More...
 
int childrenCount () const
 Returns the current number of children.
 
bool contains (YWidget *child) const
 Checks if 'child' is a (direct!) child of this widget.
 
virtual void addChild (YWidget *child)
 Add a new child. More...
 
virtual void removeChild (YWidget *child)
 Remove a child. More...
 
void deleteChildren ()
 Delete all children and remove them from the children manager's list.
 
YWidgetparent () const
 Return this widget's parent or 0 if it doesn't have a parent.
 
bool hasParent () const
 Return 'true' if this widget has a parent, 'false' if not.
 
void setParent (YWidget *newParent)
 Set this widget's parent.
 
YDialogfindDialog ()
 Traverse up the widget hierarchy and find the dialog this widget belongs to. More...
 
YWidgetfindWidget (YWidgetID *id, bool doThrow=true) const
 Recursively find a widget by its ID. More...
 
virtual int preferredWidth ()=0
 Preferred width of the widget. More...
 
virtual int preferredHeight ()=0
 Preferred height of the widget. More...
 
virtual int preferredSize (YUIDimension dim)
 Preferred size of the widget in the specified dimension. More...
 
virtual void setSize (int newWidth, int newHeight)=0
 Set the new size of the widget. More...
 
bool isValid () const
 Checks whether or not this object is valid. More...
 
bool beingDestroyed () const
 Check if this widget is in the process of being destroyed.
 
void * widgetRep () const
 Return a pointer to the underlying toolkit's (Qt, ...) widget representing this abstract UI widget.
 
void setWidgetRep (void *toolkitWidgetRep)
 Set the pointer to the underlying toolkit's (Qt, ...) widget representing this abstract UI widget. More...
 
bool hasId () const
 Returns 'true' if this widget has an ID.
 
YWidgetIDid () const
 Returns this widget's ID.
 
void setId (YWidgetID *newId_disown)
 Set this widget's ID. More...
 
virtual void setEnabled (bool enabled=true)
 Enable or disable this widget, i.e. More...
 
void setDisabled ()
 Disable this widget (overloaded for better readability).
 
virtual bool isEnabled () const
 Returns 'true' if this widget is enabled.
 
virtual bool stretchable (YUIDimension dim) const
 This is a boolean value that determines whether the widget is resizable beyond its preferred size in the specified dimension. More...
 
void setStretchable (YUIDimension dim, bool newStretch)
 Set the stretchable state to "newStretch" regardless of any hstretch or vstretch options.
 
void setDefaultStretchable (YUIDimension dim, bool newStretch)
 Set the stretchable state to "newStretch". More...
 
virtual int weight (YUIDimension dim)
 The weight is used in situations where all widgets can get their preferred size and yet space is available. More...
 
bool hasWeight (YUIDimension dim)
 Return whether or not the widget has a weight in the specified dimension.
 
void setWeight (YUIDimension dim, int weight)
 Set a weight in the specified dimension.
 
void setNotify (bool notify=true)
 Sets the Notify property.
 
bool notify () const
 Returns whether the widget will notify, i.e. More...
 
void setNotifyContextMenu (bool notifyContextMenu=true)
 Sets the notifyContextMenu property.
 
bool notifyContextMenu () const
 Returns whether the widget will send an event when the user clicks selects the context menu e.g. More...
 
bool sendKeyEvents () const
 Returns 'true' if this widget should send key events, i.e. More...
 
void setSendKeyEvents (bool doSend)
 Specify whether or not this widget should send key events.
 
bool autoShortcut () const
 Returns 'true' if a keyboard shortcut should automatically be assigned to this widget - without complaints in the log file.
 
void setAutoShortcut (bool _newAutoShortcut)
 Sets the 'autoShortcut' flag.
 
int functionKey () const
 Return a function key number that is assigned to this widget. More...
 
bool hasFunctionKey () const
 Check if a function key is assigned to this widget.
 
virtual void setFunctionKey (int fkey_no)
 Assign a function key to this widget (1 for F1, 2 for F2, etc. More...
 
virtual bool setKeyboardFocus ()
 Set the keyboard focus to this widget. More...
 
virtual std::string shortcutString () const
 Get the string of this widget that holds the keyboard shortcut, if any. More...
 
virtual void setShortcutString (const std::string &str)
 Set the string of this widget that holds the keyboard shortcut, if any. More...
 
virtual const char * userInputProperty ()
 The name of the widget property that will return user input, if there is any. More...
 
void dumpWidgetTree (int indentationLevel=0)
 Debugging function: Dump the widget tree from here on to the log file.
 
void dumpDialogWidgetTree ()
 Debugging function: Dump the widget tree from this widget's dialog parent. More...
 
void setChildrenEnabled (bool enabled)
 Enable or disable all widgets in this widget tree.
 
virtual void saveUserInput (YMacroRecorder *macroRecorder)
 Recursively save the user input of all child widgets to a macro recorder: More...
 
void * operator new (size_t size)
 Overloaded operator new to ensure widgets are always created on the heap, never on the stack. More...
 
virtual void startMultipleChanges ()
 In some UIs updating the screen content is an expensive operation. More...
 
virtual void doneMultipleChanges ()
 

Protected Member Functions

 YBarGraph (YWidget *parent)
 Constructor.
 
virtual void doUpdate ()=0
 Perform a display update after any change to any of the segments. More...
 
- Protected Member Functions inherited from YWidget
 YWidget (YWidget *parent)
 Constructor.
 
YWidgetChildrenManagerchildrenManager () const
 Returns this widget's children manager.
 
void setChildrenManager (YWidgetChildrenManager *manager)
 Sets a new children manager for this widget. More...
 
void setBeingDestroyed ()
 Set the "being destroyed" flag, i.e. More...
 
void dumpWidget (YWidget *w, int indentationLevel)
 Helper function for dumpWidgetTree(): Dump one widget to the log file.
 

Friends

class YBarGraphMultiUpdate
 

Detailed Description

A graph showing partitioning of a whole.

The whole is divided into YBarGraphSegment each of which has a relative size, a text color, a background color, and a label.

Definition at line 40 of file YBarGraph.h.

Member Function Documentation

◆ addSegment()

void YBarGraph::addSegment ( const YBarGraphSegment segment)

Add one segment.

If the segment's background and text colors are not explicitly specified, the YBarGraph widget will assign them from a list of (at least 5 different) color sets.

When adding multiple segments, use a YBarGraphMultiUpdate object for improved performance to hold back display updates until all segments are added.

Definition at line 96 of file YBarGraph.cc.

◆ doUpdate()

virtual void YBarGraph::doUpdate ( )
protectedpure virtual

Perform a display update after any change to any of the segments.

Derived classes are required to implement this.

◆ getProperty()

YPropertyValue YBarGraph::getProperty ( const std::string &  propertyName)
virtual

Get a property.

Reimplemented from YWidget.

This method may throw YUIPropertyExceptions.

Reimplemented from YWidget.

Definition at line 211 of file YBarGraph.cc.

◆ propertySet()

const YPropertySet & YBarGraph::propertySet ( )
virtual

Return this class's property set.

This also initializes the property upon the first call.

Reimplemented from YWidget.

Reimplemented from YWidget.

Definition at line 174 of file YBarGraph.cc.

◆ segment()

const YBarGraphSegment & YBarGraph::segment ( int  segmentIndex) const

Return the segment with the specified index (from 0 on).

This will throw an exception if there are not this many segments.

Definition at line 112 of file YBarGraph.cc.

◆ setLabel()

void YBarGraph::setLabel ( int  segmentIndex,
const std::string &  newLabel 
)

Set the label of the segment with the specified index (from 0 on).

Use %1 as a placeholder for the current value.

This will throw an exception if there are not this many segments.

Note: Use a YBarGraphMultiUpdate object for improved performance when doing multiple changes at the same time.

Definition at line 138 of file YBarGraph.cc.

◆ setProperty()

bool YBarGraph::setProperty ( const std::string &  propertyName,
const YPropertyValue val 
)
virtual

Set a property.

Reimplemented from YWidget.

This function may throw YUIPropertyExceptions.

This function returns 'true' if the value was successfully set and 'false' if that value requires special handling (not in error cases: those are covered by exceptions).

Reimplemented from YWidget.

Definition at line 195 of file YBarGraph.cc.

◆ setSegmentColor()

void YBarGraph::setSegmentColor ( int  segmentIndex,
const YColor color 
)

Set the background color of the segment with the specified index (from 0 on).

This will throw an exception if there are not this many segments or if the color is undefined.

Definition at line 148 of file YBarGraph.cc.

◆ setTextColor()

void YBarGraph::setTextColor ( int  segmentIndex,
const YColor color 
)

Set the text color of the segment with the specified index (from 0 on).

This will throw an exception if there are not this many segments or if the color is undefined.

Definition at line 161 of file YBarGraph.cc.

◆ setValue()

void YBarGraph::setValue ( int  segmentIndex,
int  newValue 
)

Set the value of the segment with the specifie index (from 0 on).

This will throw an exception if there are not this many segments.

Note: Use a YBarGraphMultiUpdate object for improved performance when doing multiple changes at the same time.

Definition at line 128 of file YBarGraph.cc.


The documentation for this class was generated from the following files: