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401 lines
12 KiB
401 lines
12 KiB
/* This file is part of the KDE project
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Copyright (C) 2002 Anders Lund <anders.lund@lund.tdcadsl.dk>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef _KACTION_SELECTOR_H_
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#define _KACTION_SELECTOR_H_
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#include <tqwidget.h>
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class TQListBox;
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class TQListBoxItem;
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class TQKeyEvent;
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class TQEvent;
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class TQIconSet;
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class KActionSelectorPrivate;
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/**
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@short A widget for selecting and arranging actions/objects
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This widget allows the user to select from a set of objects and arrange
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the order of the selected ones using two list boxes labeled "Available"
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and "Used" with horizontal arrows in between to move selected objects between
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the two, and vertical arrows on the right to arrange the order of the selected
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objects.
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The widget moves objects to the other listbox when doubleclicked if
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the property moveOnDoubleClick is set to true (default). See moveOnDoubleClick()
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and setMoveOnDoubleClick().
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The user control the widget using the keyboard if enabled (default),
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see keyboardEnabled.
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Note that this may conflist with keyboard selection in the selected list box,
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if you set that to anything else than TQListBox::Single (which is the default).
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To use it, simply construct an instance and then add items to the two listboxes,
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available through lbAvailable() and lbSelected(). Whenever you want, you can retrieve
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the selected options using TQListBox methods on lbSelected().
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This way, you can use your own TQListBoxItem class, allowing you to easily
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store object data in those.
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When an item is moved to a listbox, it is placed below the current item
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of that listbox.
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Standard arrow icons are used, but you can use icons of your own choice if desired,
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see setButtonIcon(). It is also possible to set tooltips and whatsthis help
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for the buttons. See setButtonTooltip() and setButtonWhatsThis().
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To set whatsthis or tooltips for the listboxes, access them through
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availableListbox() and selectedListBox().
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All the moving buttons are automatically set enabled as expected.
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Signals are sent each time an item is moved, allowing you to follow the
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users actions if you need to. See addedToSelection(), removedFromSelection(),
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movedUp() and movedDown()
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@author Anders Lund <anders@alweb.dk>
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*/
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class KActionSelector : public TQWidget {
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Q_OBJECT
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Q_ENUMS( ButtonIconSize InsertionPolicy )
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TQ_PROPERTY( bool moveOnDoubleClick READ moveOnDoubleClick WRITE setMoveOnDoubleClick )
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TQ_PROPERTY( bool keyboardEnabled READ keyboardEnabled WRITE setKeyboardEnabled )
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TQ_PROPERTY( TQString availableLabel READ availableLabel WRITE setAvailableLabel )
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TQ_PROPERTY( TQString selectedLabel READ selectedLabel WRITE setSelectedLabel )
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TQ_PROPERTY( ButtonIconSize buttonIconSize READ buttonIconSize WRITE setButtonIconSize )
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TQ_PROPERTY( InsertionPolicy availableInsertionPolicy READ availableInsertionPolicy WRITE setAvailableInsertionPolicy )
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TQ_PROPERTY( InsertionPolicy selectedInsertionPolicy READ selectedInsertionPolicy WRITE setSelectedInsertionPolicy )
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TQ_PROPERTY( bool showUpDownButtons READ showUpDownButtons WRITE setShowUpDownButtons )
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public:
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KActionSelector( TQWidget *parent=0, const char *name=0 );
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~KActionSelector();
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/**
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@return The TQListBox holding the available actions
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*/
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TQListBox *availableListBox();
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/**
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@return The TQListBox holding the selected actions
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*/
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TQListBox *selectedListBox();
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/**
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This enum indentifies the moving buttons
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*/
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enum MoveButton {
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ButtonAdd,
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ButtonRemove,
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ButtonUp,
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ButtonDown
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};
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/**
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This enum identifies the icon sizes, used for the move buttons.
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The values correspond to the following pixel sizes:
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@li SmallIcon - the return value of IconSize( KIcon::Small ), the user defined size
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of a small icon in KDE. This is the default setting.
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@li Small - 16px
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@li Medium - 22px
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@li Large - 32px
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@li XLarge - 48px
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*/
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enum ButtonIconSize {
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SmallIcon,
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Small,
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Medium,
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Large,
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XLarge
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};
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/**
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This enum defines policies for where to insert moved items in a listbox.
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The following policies are currently defined:
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@li BelowCurrent - The item is inserted below the listbox'
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currentItem() or at the end if there is no curent item.
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@li Sorted - The listbox is sort()ed after one or more items are inserted.
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@li AtTop - The item is inserted at index 0 in the listbox.
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@li AtBottom - The item is inserted at the end of the listbox.
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@sa availableInsertionPolicy(), setAvailableInsertionPolicy(),
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selectedInsertionPolicy(), setSelectedInsertionPolicy().
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*/
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enum InsertionPolicy {
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BelowCurrent,
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Sorted,
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AtTop,
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AtBottom
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};
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/**
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@return Wheather moveOnDoubleClcik is enabled.
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If enabled, an item in any listbox will be moved to the other one whenever
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doubleclicked.
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@sa setMoveOnDoubleClick()
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*/
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bool moveOnDoubleClick() const;
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/**
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Sets moveOnDoubleClick to @p enable
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@sa moveOnDoubleClick()
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*/
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void setMoveOnDoubleClick( bool enable );
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/**
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@return Weather keyboard control is enabled.
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When Keyboard control is enabled, the widget will react to
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the following keyboard actions:
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@li CTRL + Right - simulate clicking the add button
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@li CTRL + Left - simulate clicking the remove button
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@li CTRL + Up - simulate clicking the up button
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@li CTRL + Down - simulate clicking the down button
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Additionally, pressing RETURN or ENTER on one of the list boxes
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will cause the current item of that listbox to be moved to the other
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listbox.
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The keyboard actions are enabled by default.
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@sa setKeyboardEnabled()
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*/
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bool keyboardEnabled() const;
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/**
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Sets the keyboard enabled depending on @p enable.
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@sa keyboardEnabled()
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*/
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void setKeyboardEnabled( bool enable );
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/**
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@return The text of the label for the available items listbox.
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*/
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TQString availableLabel() const;
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/**
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Sets the label for the available items listbox to @p text.
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Note that this label has the listbox as its @e buddy, so that
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if you have a single ampersand in the text, the following character
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will become the accellerator to focus te listbox.
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*/
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void setAvailableLabel( const TQString & text );
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/**
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@return the label of the selected items listbox.
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*/
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TQString selectedLabel() const;
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/**
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Sets the label for the selected items listbox to @p text.
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Note that this label has the listbox as its @e buddy, so that
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if you have a single ampersand in the text, the following character
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will become the accellerator to focus te listbox.
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*/
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void setSelectedLabel( const TQString & text );
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/**
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@return the current ButtonIconSize.
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*/
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ButtonIconSize buttonIconSize() const;
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/**
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Sets the button icon size.
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See ButtonIconSize for the possible values and their pixel meaning.
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*/
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void setButtonIconSize( ButtonIconSize size );
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/**
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@return The current insertion policy for the available listbox.
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The default policy for the available listbox is Sorted.
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See also InsertionPolicy, setAvailableInsertionPolicy().
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*/
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InsertionPolicy availableInsertionPolicy() const;
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/**
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Sets the insertion policy for the available listbox.
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See also InsertionPolicy, availableInsertionPolicy().
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*/
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void setAvailableInsertionPolicy( InsertionPolicy policy );
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/**
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@return The current insertion policy for the selected listbox.
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The default policy for the selected listbox is BelowCurrent.
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See also InsertionPolicy, setSelectedInsertionPolicy().
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*/
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InsertionPolicy selectedInsertionPolicy() const;
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/**
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Sets the insertion policy for the selected listbox.
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See also InsertionPolicy, selectedInsertionPolicy().
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*/
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void setSelectedInsertionPolicy( InsertionPolicy policy );
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/**
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@return wheather the Up and Down buttons should be displayed.
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*/
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bool showUpDownButtons() const;
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/**
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Sets wheather the Up and Down buttons should be displayed
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according to @p show
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*/
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void setShowUpDownButtons( bool show );
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/**
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Sets the pixmap of the button @p button to @p icon.
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It calls SmallIconSet(pm) to generate the icon set.
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*/
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void setButtonIcon( const TQString &icon, MoveButton button );
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/**
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Sets the iconset for button @p button to @p iconset.
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You can use this method to et a costum icon set. Either
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created by @ref TQIconSet, or use the application instance of
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@ref KIconLoader (recommended).
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*/
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void setButtonIconSet( const TQIconSet &iconset, MoveButton button );
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/**
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Sets the tooltip for the button @p button to @p tip.
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*/
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void setButtonTooltip( const TQString &tip, MoveButton button );
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/**
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Sets the whatsthis help for button @p button to @p text.
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*/
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void setButtonWhatsThis( const TQString &text, MoveButton button );
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/**
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Sets the enabled state of all moving buttons to reflect the current
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options.
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Be sure to call this if you add or removes items to either listbox after the
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widget is show()n
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*/
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void setButtonsEnabled();
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signals:
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/**
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Emitted when an item is moved to the "selected" listbox.
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*/
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void added( TQListBoxItem *item );
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/**
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Emitted when an item is moved out of the "selected" listbox.
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*/
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void removed( TQListBoxItem *item );
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/**
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Emitted when an item is moved upwards in the "selected" listbox.
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*/
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void movedUp( TQListBoxItem *item );
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/**
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Emitted when an item is moved downwards in the "selected" listbox.
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*/
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void movedDown( TQListBoxItem *item );
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/**
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Emitted when an item is moved to the "selected" listbox.
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*/
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// void addedToSelection( TQListBoxItem *item );
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public slots:
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/**
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Reimplemented for internal reasons.
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(calls setButtonsEnabled())
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*/
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void polish();
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protected:
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/**
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Reimplamented for internal reasons.
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*/
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void keyPressEvent( TQKeyEvent * );
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/**
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Reimplemented for internal reasons.
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*/
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bool eventFilter( TQObject *, TQEvent * );
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private slots:
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/**
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Move selected item from available box to the selected box
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*/
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void buttonAddClicked();
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/**
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Move selected item from selected box to available box
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*/
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void buttonRemoveClicked();
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/**
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Move selected item in selected box upwards
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*/
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void buttonUpClicked();
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/**
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Move seleted item in selected box downwards
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*/
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void buttonDownClicked();
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/**
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Moves the item @p item to the other listbox if moveOnDoubleClick is enabled.
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*/
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void itemDoubleClicked( TQListBoxItem *item );
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/**
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connected to both list boxes to set the buttons enabled
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*/
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void slotCurrentChanged( TQListBoxItem * ) { setButtonsEnabled(); };
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private:
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/**
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Move item @p item to the other listbox
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*/
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void moveItem( TQListBoxItem *item );
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/**
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loads the icons for the move buttons.
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*/
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void loadIcons();
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/**
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@return the index to insert an item into listbox @p lb,
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given InsertionPolicy @p policy.
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Note that if policy is Sorted, this will return -1.
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Sort the listbox after inserting the item in that case.
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*/
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int insertionIndex( TQListBox *lb, InsertionPolicy policy );
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/**
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Private data storage
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*/
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KActionSelectorPrivate *d;
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};
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#endif // _KACTION_SELECTOR_H_
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