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/**
* @file llcombobox.h
* @brief LLComboBox base class
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
// A control that displays the name of the chosen item, which when clicked
// shows a scrolling box of choices.
#ifndef LL_LLCOMBOBOX_H
#define LL_LLCOMBOBOX_H
#include "llbutton.h"
#include "lluictrl.h"
#include "llctrlselectioninterface.h"
#include "llrect.h"
#include "llscrolllistctrl.h"
#include "lllineeditor.h"
#include <boost/function.hpp>
// Classes
class LLFontGL;
class LLViewBorder;
extern S32 LLCOMBOBOX_HEIGHT;
extern S32 LLCOMBOBOX_WIDTH;
class LLComboBox
: public LLUICtrl, public LLCtrlListInterface
{
public:
typedef enum e_preferred_position
{
ABOVE,
BELOW
} EPreferredPosition;
struct PreferredPositionValues : public LLInitParam::TypeValuesHelper<EPreferredPosition, PreferredPositionValues>
{
static void declareValues();
};
struct ItemParams : public LLInitParam::Block<ItemParams, LLScrollListItem::Params>
{
Optional<std::string> label;
ItemParams();
};
struct Params
: public LLInitParam::Block<Params, LLUICtrl::Params>
{
Optional<bool> allow_text_entry,
show_text_as_tentative,
allow_new_values;
Optional<S32> max_chars;
Optional<commit_callback_t> prearrange_callback,
text_entry_callback;
Optional<EPreferredPosition, PreferredPositionValues> list_position;
// components
Optional<LLButton::Params> combo_button;
Optional<LLScrollListCtrl::Params> combo_list;
Optional<LLLineEditor::Params> combo_editor;
Optional<LLButton::Params> drop_down_button;
Multiple<ItemParams> items;
Params();
};
virtual ~LLComboBox();
/*virtual*/ BOOL postBuild();
protected:
friend class LLUICtrlFactory;
LLComboBox(const Params&);
void initFromParams(const Params&);
void prearrangeList(std::string filter = "");
public:
// LLView interface
virtual void onFocusLost();
virtual BOOL handleToolTip(S32 x, S32 y, MASK mask);
virtual BOOL handleKeyHere(KEY key, MASK mask);
virtual BOOL handleUnicodeCharHere(llwchar uni_char);
// LLUICtrl interface
virtual void clear(); // select nothing
virtual void onCommit();
virtual BOOL acceptsTextInput() const { return mAllowTextEntry; }
virtual BOOL isDirty() const; // Returns TRUE if the user has modified this control.
virtual void resetDirty(); // Clear dirty state
virtual void setFocus(BOOL b);
// Selects item by underlying LLSD value, using LLSD::asString() matching.
// For simple items, this is just the name of the label.
virtual void setValue(const LLSD& value );
// Gets underlying LLSD value for currently selected items. For simple
// items, this is just the label.
virtual LLSD getValue() const;
void setTextEntry(const LLStringExplicit& text);
LLScrollListItem* add(const std::string& name, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE); // add item "name" to menu
LLScrollListItem* add(const std::string& name, const LLUUID& id, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE);
LLScrollListItem* add(const std::string& name, void* userdata, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE);
LLScrollListItem* add(const std::string& name, LLSD value, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE);
LLScrollListItem* addSeparator(EAddPosition pos = ADD_BOTTOM);
BOOL remove( S32 index ); // remove item by index, return TRUE if found and removed
void removeall() { clearRows(); }
void sortByName(BOOL ascending = TRUE); // Sort the entries in the combobox by name
// Select current item by name using selectItemByLabel. Returns FALSE if not found.
BOOL setSimple(const LLStringExplicit& name);
// Get name of current item. Returns an empty string if not found.
const std::string getSimple() const;
// Get contents of column x of selected row
const std::string getSelectedItemLabel(S32 column = 0) const;
// Sets the label, which doesn't have to exist in the label.
// This is probably a UI abuse.
void setLabel(const LLStringExplicit& name);
BOOL remove(const std::string& name); // remove item "name", return TRUE if found and removed
BOOL setCurrentByIndex( S32 index );
S32 getCurrentIndex() const;
void createLineEditor(const Params&);
//========================================================================
LLCtrlSelectionInterface* getSelectionInterface() { return (LLCtrlSelectionInterface*)this; };
LLCtrlListInterface* getListInterface() { return (LLCtrlListInterface*)this; };
// LLCtrlListInterface functions
// See llscrolllistctrl.h
virtual S32 getItemCount() const;
// Overwrites the default column (See LLScrollListCtrl for format)
virtual void addColumn(const LLSD& column, EAddPosition pos = ADD_BOTTOM);
virtual void clearColumns();
virtual void setColumnLabel(const std::string& column, const std::string& label);
virtual LLScrollListItem* addElement(const LLSD& value, EAddPosition pos = ADD_BOTTOM, void* userdata = NULL);
virtual LLScrollListItem* addSimpleElement(const std::string& value, EAddPosition pos = ADD_BOTTOM, const LLSD& id = LLSD());
virtual void clearRows();
virtual void sortByColumn(const std::string& name, BOOL ascending);
// LLCtrlSelectionInterface functions
virtual BOOL getCanSelect() const { return TRUE; }
virtual BOOL selectFirstItem() { return setCurrentByIndex(0); }
virtual BOOL selectNthItem( S32 index ) { return setCurrentByIndex(index); }
virtual BOOL selectItemRange( S32 first, S32 last );
virtual S32 getFirstSelectedIndex() const { return getCurrentIndex(); }
virtual BOOL setCurrentByID( const LLUUID& id );
virtual LLUUID getCurrentID() const; // LLUUID::null if no items in menu
virtual BOOL setSelectedByValue(const LLSD& value, BOOL selected);
virtual LLSD getSelectedValue();
virtual BOOL isSelected(const LLSD& value) const;
virtual BOOL operateOnSelection(EOperation op);
virtual BOOL operateOnAll(EOperation op);
//========================================================================
void* getCurrentUserdata();
void setPrearrangeCallback( commit_callback_t cb ) { mPrearrangeCallback = cb; }
void setTextEntryCallback( commit_callback_t cb ) { mTextEntryCallback = cb; }
void setButtonVisible(BOOL visible);
void onButtonMouseDown();
void onListMouseUp();
void onItemSelected(const LLSD& data);
void onTextCommit(const LLSD& data);
void updateSelection();
virtual void showList();
virtual void hideList();
virtual void onTextEntry(LLLineEditor* line_editor);
protected:
LLButton* mButton;
LLLineEditor* mTextEntry;
LLScrollListCtrl* mList;
EPreferredPosition mListPosition;
LLPointer<LLUIImage> mArrowImage;
LLUIString mLabel;
BOOL mHasAutocompletedText;
private:
BOOL mAllowTextEntry;
BOOL mAllowNewValues;
S32 mMaxChars;
BOOL mTextEntryTentative;
commit_callback_t mPrearrangeCallback;
commit_callback_t mTextEntryCallback;
commit_callback_t mSelectionCallback;
S32 mLastSelectedIndex;
boost::signals2::connection mTopLostSignalConnection;
};
#endif
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