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kmymoney/kmymoney2/widgets/kmymoneyselector.h

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/***************************************************************************
kmymoneyselector.h
-------------------
begin : Thu Jun 29 2006
copyright : (C) 2006 by Thomas Baumgart
email : Thomas Baumgart <ipwizard@users.sourceforge.net>
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef KMYMONEYSELECTOR_H
#define KMYMONEYSELECTOR_H
// ----------------------------------------------------------------------------
// TQt Includes
#include <tqwidget.h>
#include <tqlistview.h>
class TQHBoxLayout;
// ----------------------------------------------------------------------------
// TDE Includes
class TDEListView;
// ----------------------------------------------------------------------------
// Project Includes
#include <kmymoney/mymoneyutils.h>
/**
* This class implements a general selector for id based objects. It is based
* on a tree view. Using this widget, one can select one or multiple
* items depending on the mode of operation and the set of items
* selected to be displayed. (see setSelectionMode() ).
*
* - Single selection mode\n
* In this mode the widget allows to select a single entry out of
* the set of displayed items.
*
* - Multi selection mode\n
* In this mode, the widget allows to select one or more entries
* out of the set of displayed items. Selection is performed
* by marking the item in the view.
*/
class KMyMoneySelector : public TQWidget
{
TQ_OBJECT
public:
KMyMoneySelector(TQWidget *parent=0, const char *name=0, TQWidget::WFlags flags = 0);
virtual ~KMyMoneySelector();
/**
* This method sets the mode of operation of this widget.
* Supported values are @p TQListView::Single and @p TQListView::Multi.
*
* @param mode @p TQListView::Single selects single selection mode and
* @p TQListView::Multi selects multi selection mode
*
* @note When the widget is created, it defaults to TQListView::Single.
* Any items loaded into the widget will be cleared if the mode changes.
* Changing the selection mode also changes the type of the items
* created through newItem(). You should therefor set the selection mode
* before you create items.
*/
void setSelectionMode(const TQListView::SelectionMode mode);
/**
* returns the selection mode of the widget.
*
* @sa setSelectionMode()
*/
TQListView::SelectionMode selectionMode(void) const { return m_selMode; }
/**
* This method returns the list of selected item ids. If
* no item is selected, the list is empty. The list is cleared
* when the method is called.
*
* @param list reference to id list
*/
void selectedItems(TQStringList& list) const;
/**
* Convenience method for above method. Requires more resources.
* Provided only for backward compatibility.
*
* @todo Deprecated after 1.0
*/
TQStringList selectedItems(void) const;
/**
* This method returns the list of all item ids.
* The list is cleared when the method is called.
*
* @param list reference to id list
*/
void itemList(TQStringList& list) const;
/**
* Convenience method for above method. Requires more resources.
* Provided only for backward compatibility.
*
* @todo Deprecated after 1.0
*/
TQStringList itemList(void) const;
/**
* This method returns an information if all items
* currently shown are selected or not.
*
* @retval true All items shown are selected
* @retval false Not all items are selected
*
* @note If the selection mode is set to Single, this
* method always returns false.
*/
bool allItemsSelected(void) const;
/**
* This method sets the current selected item and marks the
* checkbox according to @p state in multi-selection-mode.
*
* @param id id of account
* @param state state of checkbox in multi-selection-mode
* @p true checked
* @p false not checked (default)
*/
void setSelected(const TQString& id, const bool state = false);
/**
* Return a pointer to the TDEListView object
*/
TDEListView* listView(void) const { return m_listView; };
/**
* This method selects/deselects all items that
* are currently in the item list according
* to the parameter @p state.
*
* @param state select items if @p true, deselect otherwise
*/
void selectAllItems(const bool state);
/**
* This method selects/deselects all items that
* are currently in this object's item list AND are present in the supplied
* @p itemList of items to select, according to the @p state.
*
* @param itemList of item ids to apply @p state to
* @param state select items if @p true, deselect otherwise
*/
void selectItems(const TQStringList& itemList, const bool state);
/**
* Protect an entry from selection. Protection is controlled by
* the parameter @p protect.
*
* @param itemId id of item for which to modify the protection
* @param protect if true, the entry specified by @p accId cannot be
* selected. If false, it can be selected. Defaults to @p true.
*/
void protectItem(const TQString& itemId, const bool protect = true);
/**
* This method modifies the width of the widget to match its optimal size
* so that all entries fit completely.
*/
void setOptimizedWidth(void);
/**
* This method removes an item with a given id from the list.
*
* @param id TQString containing id of item to be removed
*/
void removeItem(const TQString& id);
/**
* This method creates a new top level KMyMoneyCheckListItem object in the list view.
* The type can be influenced with the @a type argument. It defaults
* to TQCheckListItem::RadioButtonController. If @a id is empty, the item is not
* selectable. It will be shown 'opened' (see TQListViewItem::setOpen())
*
* @return pointer to newly created object
*/
TQListViewItem* newItem(const TQString& name, const TQString& key = TQString(), const TQString& id = TQString(), TQCheckListItem::Type type = TQCheckListItem::RadioButtonController);
/**
* Same as above, but create the item following the item pointed to by @c after.
* If @c after is 0, then behave as previous method
*/
TQListViewItem* newItem(const TQString& name, TQListViewItem* after, const TQString& key = TQString(), const TQString& id = TQString(), TQCheckListItem::Type type = TQCheckListItem::RadioButtonController);
/**
* This method creates a new selectable object depending on the
* selection mode. This is either a TDEListViewItem for single
* selection mode or a KMyMoneyCheckListItem for multi selection mode
*
* @note The new item will be the first one in the selection
*
* @param parent pointer to parent item
* @param name the displayed name
* @param key String to be used for completion. If empty defaults to @a name
* @param id the id used to identify the objects
*
* @return pointer to newly created object
*/
TQListViewItem* newItem(TQListViewItem* parent, const TQString& name, const TQString& key, const TQString& id);
/**
* This method creates a new selectable object depending on the
* selection mode. This is either a TDEListViewItem for single
* selection mode or a KMyMoneyCheckListItem for multi selection mode.
* In contrast to the above method, the parent is always the view.
*
* @note The new item will be the first one in the selection
*
* @param name the displayed name
* @param key String to be used for completion. If empty defaults to @a name
* @param id the id used to identify the objects
*
* @return pointer to newly created object
*/
TQListViewItem* newTopItem(const TQString& name, const TQString& key, const TQString& id);
/**
* This method checks if a given @a item matches the given regular expression @a exp.
*
* @param exp const reference to a regular expression object
* @param item pointer to TQListViewItem
*
* @retval true item matches
* @retval false item does not match
*/
virtual bool match(const TQRegExp& exp, TQListViewItem* item) const;
/**
* This method delays the call for m_listView->ensureItemVisible(item)
* for about 10ms. This seems to be necessary when the widget is not (yet)
* visible on the screen after creation.
*
* @param item pointer to TQListViewItem that should be made visible
*
* @sa slotShowSelected()
*/
void ensureItemVisible(const TQListViewItem *item);
/**
* This method returns a pointer to the TQListViewItem with the id @a id.
* If such an item is not contained in the list, @a 0 will be returned.
*
* @param id id to be used to find a TQListViewItem pointer for
*/
TQListViewItem* item(const TQString& id) const;
/**
* This method returns, if any of the items in the selector contains
* the text @a txt.
*
* @param txt const reference to string to be looked for
* @retval true exact match found
* @retval false no match found
*/
virtual bool contains(const TQString& txt) const;
/**
* Clears all items of the selector and the associated listview.
*/
virtual void clear(void);
/**
* This method returns the optimal width for the widget
*/
int optimizedWidth(void) const;
public slots:
/**
* This slot selects all items that are currently in
* the item list of the widget.
*/
void slotSelectAllItems(void) { selectAllItems(true); };
/**
* This slot deselects all items that are currently in
* the item list of the widget.
*/
void slotDeselectAllItems(void) { selectAllItems(false); };
signals:
void stateChanged(void);
void itemSelected(const TQString& id);
protected:
/**
* Helper method for selectedItems() to traverse the tree.
*
* @param list list of selected ids
* @param item pointer to item to start with
*/
void selectedItems(TQStringList& list, TQListViewItem* item) const;
/**
* Helper method for allItemsSelected() to traverse the tree.
*
* @param item pointer to item to start with
*/
bool allItemsSelected(const TQListViewItem *item) const;
/**
* This is a helper method for selectAllItems().
*
* @param item pointer to item to start with
* @param state selection state (@a true = selected, @a false = not selected)
*/
void selectAllSubItems(TQListViewItem* item, const bool state);
/**
* This is a helper method for selectItems().
*
* @param item pointer to item to start with
* @param itemList list of ids to be selected
* @param state selection state (@a true = selected, @a false = not selected)
*/
void selectSubItems(TQListViewItem* item, const TQStringList& itemList, const bool state);
public slots:
/**
* Hide all listview items that do not match the regular expression @a exp.
* This method returns the number of visible items
*
* @param exp const reference to TQRegExp that an item must match to stay visible
*
* @return number of visible items
*/
int slotMakeCompletion(const TQRegExp& exp);
/**
* This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
*
* @param txt contains the pattern for a TQRegExp
*/
int slotMakeCompletion(const TQString& txt);
protected slots:
/**
* This slot is usually connected to a timer signal and simply
* calls m_listView->ensureItemVisible() for the last selected item
* in this widget.
*
* @sa ensureItemVisible(), setSelected(const TQString&)
*/
void slotShowSelected(void);
/**
* This slot is connected to the TDEListView executed signal
*/
void slotItemSelected(TQListViewItem *it_v);
/**
* This slot processes the right mouse button press on a list view item.
*
* @param it_v pointer to list view item that was pressed
* @param p the position where the mouse was pressed
*/
void slotListRightMouse(TQListViewItem* it_v, const TQPoint& p, int /* col */);
protected:
TDEListView* m_listView;
TQStringList m_itemList;
TQString m_baseName;
TQListView::SelectionMode m_selMode;
TQHBoxLayout* m_layout;
private:
const TQListViewItem* m_visibleItem;
};
#endif