libyui  3.3.1
YGraph Class Referenceabstract

A graph with nodes and edges, rendered with Graphviz. More...

#include <YGraph.h>

Inheritance diagram for YGraph:
Collaboration diagram for YGraph:

Public Member Functions

virtual ~YGraph ()
 Destructor.
 
virtual const char * widgetClass () const
 Returns a descriptive name of this widget class for logging, debugging etc.
 
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...
 
std::string filename () const
 Return the filename that describes the graph.
 
virtual void setFilename (const std::string &filename)
 Set the filename that describes the graph and render the graph. More...
 
std::string layoutAlgorithm () const
 Return the layout-algorithm used for the graph.
 
virtual void setLayoutAlgorithm (const std::string &filename)
 Set the layout-algorithm used for the graph. More...
 
virtual void setGraph (void *graph)
 Render the graph. More...
 
virtual std::string activatedNode () const
 Return name of activated node. 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

 YGraph (YWidget *parent, const std::string &filename, const std::string &layoutAlgorithm)
 Constructor. More...
 
 YGraph (YWidget *parent, void *graph)
 Constructor. More...
 
virtual void renderGraph (const std::string &filename, const std::string &layoutAlgorithm)=0
 Render the graph from the filename. More...
 
virtual void renderGraph (void *graph)=0
 Render the graph. 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.
 

Detailed Description

A graph with nodes and edges, rendered with Graphviz.

Definition at line 45 of file YGraph.h.

Constructor & Destructor Documentation

◆ YGraph() [1/2]

YGraph::YGraph ( YWidget parent,
const std::string &  filename,
const std::string &  layoutAlgorithm 
)
protected

Constructor.

Loads a graph in DOT format from filename and uses the layout algorithm layoutAlgorithm to layout and then render the graph. The layout algorithm can be any string accepted by the function gvLayout from graphviz, e.g. "dot" or "neato".

Definition at line 44 of file YGraph.cc.

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◆ YGraph() [2/2]

YGraph::YGraph ( YWidget parent,
void *  graph 
)
protected

Constructor.

Renders the graph. The graph must already contain layout information.

Definition at line 53 of file YGraph.cc.

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Member Function Documentation

◆ activatedNode()

std::string YGraph::activatedNode ( ) const
virtual

Return name of activated node.

Activation can happen due to e.g. single right mouse click (context menu) or double left mouse click.

Definition at line 106 of file YGraph.cc.

◆ getProperty()

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

Get a property.

Reimplemented from YWidget.

This method may throw YUIPropertyExceptions.

Reimplemented from YWidget.

Definition at line 151 of file YGraph.cc.

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◆ propertySet()

const YPropertySet & YGraph::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 113 of file YGraph.cc.

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◆ renderGraph() [1/2]

virtual void YGraph::renderGraph ( const std::string &  filename,
const std::string &  layoutAlgorithm 
)
protectedpure virtual

Render the graph from the filename.

Derived classes are required to implement this.

◆ renderGraph() [2/2]

virtual void YGraph::renderGraph ( void *  graph)
protectedpure virtual

Render the graph.

Derived classes are required to implement this.

◆ setFilename()

void YGraph::setFilename ( const std::string &  filename)
virtual

Set the filename that describes the graph and render the graph.

Derived classes can reimplent this, but they should call this base class method in the new implementation. Most derived classes only need to implement renderGraph().

Definition at line 76 of file YGraph.cc.

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◆ setGraph()

void YGraph::setGraph ( void *  graph)
virtual

Render the graph.

Derived classes can reimplent this, but they should call this base class method in the new implementation. Most derived classes only need to implement renderGraph().

Definition at line 91 of file YGraph.cc.

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◆ setLayoutAlgorithm()

void YGraph::setLayoutAlgorithm ( const std::string &  filename)
virtual

Set the layout-algorithm used for the graph.

Derived classes can reimplent this, but they should call this base class method in the new implementation.

Definition at line 99 of file YGraph.cc.

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◆ setProperty()

bool YGraph::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 135 of file YGraph.cc.

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