libyui
3.4.2
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ContextMenu: Similar to PushButton, but with several actions: Upon clicking on a ContextMenu (or activating it with the keyboard), a pop-up menu opens where the user can activate an action. More...
#include <YContextMenu.h>
Public Member Functions | |
virtual | ~YContextMenu () |
Destructor. | |
virtual const char * | widgetClass () const |
Returns a descriptive name of this widget class for logging, debugging etc. | |
virtual void | rebuildMenuTree ()=0 |
Rebuild the displayed menu tree from the internally stored YMenuItems. More... | |
virtual void | addItems (const YItemCollection &itemCollection) |
Add multiple items. More... | |
virtual void | addItem (YItem *item_disown) |
Add one item. More... | |
virtual void | deleteAllItems () |
Delete all items. More... | |
void | resolveShortcutConflicts () |
Resolve keyboard shortcut conflicts: Change shortcuts of menu items if there are duplicates in the respective menu level. 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 YPropertySet & | propertySet () |
Return this class's property set. More... | |
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virtual | ~YSelectionWidget () |
Destructor. | |
std::string | label () const |
Return this widget's label (the caption above the item list). | |
virtual void | setLabel (const std::string &newLabel) |
Change this widget's label (the caption above the item list). More... | |
void | addItem (const std::string &itemLabel, bool selected=false) |
Overloaded for convenience: Add an item by string. | |
void | addItem (const std::string &itemLabel, const std::string &iconName, bool selected=false) |
Overloaded for convenience: Add an item with a text and an icon. More... | |
void | setItems (const YItemCollection &itemCollection) |
Delete all items and add new items. | |
YItemIterator | itemsBegin () |
Return an iterator that points to the first item. More... | |
YItemConstIterator | itemsBegin () const |
YItemIterator | itemsEnd () |
Return an iterator that points behind the last item. | |
YItemConstIterator | itemsEnd () const |
bool | hasItems () const |
Return 'true' if this widget has any items. | |
int | itemsCount () const |
Return the number of items. More... | |
YItem * | firstItem () const |
Return the first item or 0 if there is none. | |
virtual YItem * | selectedItem () |
Return the (first) selected item or 0 if none is selected. | |
virtual YItemCollection | selectedItems () |
Return all selected items. More... | |
bool | hasSelectedItem () |
Return 'true' if any item is selected. | |
virtual void | selectItem (YItem *item, bool selected=true) |
Select or deselect an item. More... | |
virtual void | deselectAllItems () |
Deselect all items. More... | |
void | setIconBasePath (const std::string &basePath) |
Set this widget's base path where to look up icons. More... | |
std::string | iconBasePath () const |
Return this widget's base path where to look up icons as set with setIconBasePath(). | |
std::string | iconFullPath (const std::string &iconName) const |
Return the full path + file name for the specified icon name. More... | |
std::string | iconFullPath (YItem *item) const |
Return the full path + file name for the icon of the specified item. More... | |
bool | itemsContain (YItem *item) const |
Return 'true' if this widget's items contain the specified item. | |
YItem * | findItem (const std::string &itemLabel) const |
Find the (first) item with the specified label. More... | |
virtual std::string | shortcutString () const |
Get the string of this widget that holds the keyboard shortcut. More... | |
virtual void | setShortcutString (const std::string &str) |
Set the string of this widget that holds the keyboard shortcut. More... | |
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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. | |
YWidget * | firstChild () const |
Returns the first child or 0 if there is none. More... | |
YWidget * | lastChild () 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. | |
YWidget * | parent () 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. | |
YDialog * | findDialog () |
Traverse up the widget hierarchy and find the dialog this widget belongs to. More... | |
YWidget * | findWidget (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. | |
YWidgetID * | id () 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 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 | |
YContextMenu () | |
Constructor. More... | |
YMenuItem * | findMenuItem (int index) |
Recursively find the first menu item with the specified index. More... | |
YMenuItem * | findMenuItem (int index, YItemConstIterator begin, YItemConstIterator end) |
Recursively find the first menu item with the specified index from iterator 'begin' to iterator 'end'. More... | |
YMenuItem * | itemAt (int index) |
Alias for findMenuItem(). More... | |
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YSelectionWidget (YWidget *parent, const std::string &label, bool enforceSingleSelection, bool recurisveSelection=false) | |
Constructor. More... | |
void | setEnforceSingleSelection (bool on) |
Set single selection mode on or off. More... | |
bool | enforceSingleSelection () const |
Return 'true' if this base class should enforce single selection. | |
bool | recursiveSelection () const |
Return 'true' if this base class should select children recursively. | |
YItem * | findSelectedItem (YItemConstIterator begin, YItemConstIterator end) |
Recursively try to find the first selected item between iterators 'begin' and 'end'. More... | |
void | findSelectedItems (YItemCollection &selectedItems, YItemConstIterator begin, YItemConstIterator end) |
Recursively find all selected items between iterators 'begin' and 'end' and add each of them to the 'selectedItems' YItemCollection. | |
void | deselectAllItems (YItemIterator begin, YItemIterator end) |
Recursively deselect all items between iterators 'begin' and 'end'. | |
YItem * | findItem (const std::string &wantedItemLabel, YItemConstIterator begin, YItemConstIterator end) const |
Recursively try to find an item with label 'wantedItemLabel' between iterators 'begin' and 'end'. More... | |
bool | itemsContain (YItem *wantedItem, YItemConstIterator begin, YItemConstIterator end) const |
Recursively check if 'wantedItem' is between iterators 'begin' and 'end'. | |
YItem * | itemAt (int index) const |
Return the item at index 'index' (from 0) or 0 if there is no such item. | |
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YWidget (YWidget *parent) | |
Constructor. | |
YWidgetChildrenManager * | childrenManager () 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. | |
ContextMenu: Similar to PushButton, but with several actions: Upon clicking on a ContextMenu (or activating it with the keyboard), a pop-up menu opens where the user can activate an action.
Menu items in that pop-up menu can have submenus (that will pop up in separate pop-up menus).
Internally, this widget is more similar to the Tree widget. The difference is that it does not keep a "selected" status, but triggers an action right away, just like a PushButton. Like PushButton, ContextMenu sends an event right away when the user selects an item (clicks on a menu item or activates it with the keyboard). Items that have a submenu never send an event, they simply open their submenu when activated.
Note: unlike other widgets, this one is not created via YWidgetFactory or YOptionalWidgetFactory but with YApplication::openContextMenu()
Definition at line 51 of file YContextMenu.h.
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protected |
Constructor.
'label' is the user-visible text on the button (not above it like all other SelectionWidgets).
Definition at line 46 of file YContextMenu.cc.
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virtual |
Add one item.
This widget assumes ownership of the item object and will delete it in its destructor.
This reimplementation will an index to the item that is unique for all items in this ContextMenu. That index can be used later with findMenuItem() to find the item by that index.
Reimplemented from YSelectionWidget.
Reimplemented from YSelectionWidget.
Definition at line 71 of file YContextMenu.cc.
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virtual |
Add multiple items.
For some UIs, this can be more efficient than calling addItem() multiple times. This function also automatically calls resolveShortcutConflicts() and rebuildMenuTree() at the end.
Derived classes can overwrite this function, but they should call this base class function at the end of the new implementation.
Reimplemented from YSelectionWidget.
Reimplemented from YSelectionWidget.
Definition at line 62 of file YContextMenu.cc.
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virtual |
Delete all items.
Reimplemented from YSelectionWidget.
Reimplemented from YSelectionWidget.
Definition at line 97 of file YContextMenu.cc.
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protected |
Recursively find the first menu item with the specified index.
Returns 0 if there is no such item.
Definition at line 105 of file YContextMenu.cc.
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protected |
Recursively find the first menu item with the specified index from iterator 'begin' to iterator 'end'.
Returns 0 if there is no such item.
Definition at line 112 of file YContextMenu.cc.
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virtual |
Get a property.
Reimplemented from YWidget.
This method may throw YUIPropertyExceptions.
Reimplemented from YWidget.
Definition at line 192 of file YContextMenu.cc.
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inlineprotected |
Alias for findMenuItem().
Reimplemented to ensure consistent behaviour with YSelectionWidget::itemAt().
Definition at line 173 of file YContextMenu.h.
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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 153 of file YContextMenu.cc.
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pure virtual |
Rebuild the displayed menu tree from the internally stored YMenuItems.
The application should call this (once) after all items have been added with addItem(). YContextMenu::addItems() calls this automatically.
Derived classes are required to implement this.
void YContextMenu::resolveShortcutConflicts | ( | ) |
Resolve keyboard shortcut conflicts: Change shortcuts of menu items if there are duplicates in the respective menu level.
This has to be called after all items are added, but before rebuildMenuTree() (see above). YContextMenu::addItems() calls this automatically.
Definition at line 138 of file YContextMenu.cc.
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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 175 of file YContextMenu.cc.