The Q3CheckListItem class provides checkable list view items. More...
#include <Q3CheckListItem>
This class is part of the Qt 3 support library. It is provided to keep old source code working. We strongly advise against using it in new code. See Porting to Qt 4 for more information.
Inherits: Q3ListViewItem.
| enum | ToggleState { Off, NoChange, On } |
| enum | Type { RadioButton, CheckBox, RadioButtonController, CheckBoxController } |
| Q3CheckListItem ( Q3CheckListItem * parent, const QString & text, Type tt = RadioButtonController ) | |
| Q3CheckListItem ( Q3CheckListItem * parent, Q3ListViewItem * after, const QString & text, Type tt = RadioButtonController ) | |
| Q3CheckListItem ( Q3ListViewItem * parent, const QString & text, Type tt = RadioButtonController ) | |
| Q3CheckListItem ( Q3ListViewItem * parent, Q3ListViewItem * after, const QString & text, Type tt = RadioButtonController ) | |
| Q3CheckListItem ( Q3ListView * parent, const QString & text, Type tt = RadioButtonController ) | |
| Q3CheckListItem ( Q3ListView * parent, Q3ListViewItem * after, const QString & text, Type tt = RadioButtonController ) | |
| Q3CheckListItem ( Q3ListViewItem * parent, const QString & text, const QPixmap & p ) | |
| Q3CheckListItem ( Q3ListView * parent, const QString & text, const QPixmap & p ) | |
| ~Q3CheckListItem () | |
| bool | isOn () const |
| bool | isTristate () const |
| virtual void | setOn ( bool b ) |
| void | setState ( ToggleState s ) |
| void | setTristate ( bool b ) |
| ToggleState | state () const |
| QString | text () const |
| Type | type () const |
| virtual void | paintCell ( QPainter * p, const QColorGroup & cg, int column, int width, int align ) |
| virtual void | paintFocus ( QPainter * p, const QColorGroup & cg, const QRect & r ) |
| virtual int | rtti () const |
| virtual void | setup () |
| virtual QString | text ( int n ) const |
| virtual int | width ( const QFontMetrics & fm, const Q3ListView * lv, int column ) const |
| virtual void | stateChange ( bool b ) |
| void | turnOffChild () |
| virtual void | activate () |
The Q3CheckListItem class provides checkable list view items.
Q3CheckListItems are used in Q3ListViews to provide Q3ListViewItems that are checkboxes, radio buttons or controllers.
Checkbox and controller check list items may be inserted at any level in a list view. Radio button check list items must be children of a controller check list item.
The item can be checked or unchecked with setOn(). Its type can be retrieved with type() and its text retrieved with text().
See also Q3ListViewItem and Q3ListView.
This enum specifies a Q3CheckListItem's toggle state.
| Constant | Value |
|---|---|
| Q3CheckListItem::Off | 0 |
| Q3CheckListItem::NoChange | 1 |
| Q3CheckListItem::On | 2 |
This enum type specifies a Q3CheckListItem's type:
| Constant | Value |
|---|---|
| Q3CheckListItem::RadioButton | 0 |
| Q3CheckListItem::CheckBox | 1 |
| Q3CheckListItem::RadioButtonController | Controller |
| Q3CheckListItem::CheckBoxController | ? |
Constructs a checkable item with parent parent, text text and of type tt. Note that a RadioButton must be the child of a RadioButtonController, otherwise it will not toggle.
Constructs a checkable item with parent parent, which is after after in the parent's list of children, and with text text and of type tt. Note that a RadioButton must be the child of a RadioButtonController, otherwise it will not toggle.
Constructs a checkable item with parent parent, text text and of type tt. Note that this item must not be a RadioButton. Radio buttons must be children of a RadioButtonController.
Constructs a checkable item with parent parent, which is after after in the parent's list of children, with text text and of type tt. Note that this item must not be a RadioButton. Radio buttons must be children of a RadioButtonController.
Constructs a checkable item with parent parent, text text and of type tt. Note that tt must not be RadioButton. Radio buttons must be children of a RadioButtonController.
Constructs a checkable item with parent parent, which is after after in the parent's list of children, with text text and of type tt. Note that tt must not be RadioButton. Radio buttons must be children of a RadioButtonController.
Constructs a RadioButtonController item with parent parent, text text and pixmap p.
Constructs a RadioButtonController item with parent parent, text text and pixmap p.
Destroys the item, and all its children to any depth, freeing up all allocated resources.
Reimplemented from Q3ListViewItem::activate().
Toggle check box or set radio button to on.
Returns true if the item is toggled on; otherwise returns false.
Returns true if the item is tristate; otherwise returns false.
See also setTristate().
Reimplemented from Q3ListViewItem::paintCell().
Paints the item using the painter p and the color group cg. The item is in column column, has width width and has alignment align. (See Qt::Alignment for valid alignments.)
Reimplemented from Q3ListViewItem::paintFocus().
Draws the focus rectangle r using the color group cg on the painter p.
Reimplemented from Q3ListViewItem::rtti().
Returns 1.
Make your derived classes return their own values for rtti(), and you can distinguish between list view items. You should use values greater than 1000, to allow for extensions to this class.
Sets the button on if b is true, otherwise sets it off. Maintains radio button exclusivity.
See also isOn().
Sets the toggle state of the checklistitem to s. s can be Off, NoChange or On.
Tristate can only be enabled for CheckBox or CheckBoxController, therefore the NoChange only applies to them.
Setting the state to On or Off on a CheckBoxController will recursivly set the states of its children to the same state.
Setting the state to NoChange on a CheckBoxController will make it recursivly recall the previous stored state of its children. If there was no previous stored state the children are all set to On.
See also state().
Sets tristate to b if the Type is either a CheckBoxController or a CheckBox.
CheckBoxControllers are tristate by default.
See also state() and isTristate().
Reimplemented from Q3ListViewItem::setup().
Returns the state of the item.
See also setState() and Q3CheckListItem::ToggleState.
This virtual function is called when the item changes its state. b is true if the state is On; otherwise the state is Off. NoChange (if tristate is enabled and the type is either CheckBox or CheckBoxController) reports the same as Off, so use state() to determine if the state is actually Off or NoChange.
Returns the item's text.
Reimplemented from Q3ListViewItem::text().
If this is a RadioButtonController that has RadioButton children, turn off the child that is on.
Returns the type of this item.
Reimplemented from Q3ListViewItem::width().