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/**
* @file llradiogroup.h
* @brief LLRadioGroup base class
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2008, 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.
* $/LicenseInfo$
*/
#ifndef LL_LLRADIOGROUP_H
#define LL_LLRADIOGROUP_H
#include "lluictrl.h"
#include "llcheckboxctrl.h"
#include "llctrlselectioninterface.h"
/*
* A checkbox control with use_radio_style == true.
*/
class LLRadioCtrl : public LLCheckBoxCtrl
{
public:
LLRadioCtrl(const LLString& name, const LLRect& rect, const LLString& label, const LLFontGL* font = NULL,
void (*commit_callback)(LLUICtrl*, void*) = NULL, void* callback_userdata = NULL) :
LLCheckBoxCtrl(name, rect, label, font, commit_callback, callback_userdata, FALSE, RADIO_STYLE)
{
setTabStop(FALSE);
}
/*virtual*/ ~LLRadioCtrl();
/*virtual*/ void setValue(const LLSD& value);
};
/*
* An invisible view containing multiple mutually exclusive toggling
* buttons (usually radio buttons). Automatically handles the mutex
* condition by highlighting only one button at a time.
*/
class LLRadioGroup
: public LLUICtrl, public LLCtrlSelectionInterface
{
public:
// Build a radio group. The number (0...n-1) of the currently selected
// element will be stored in the named control. After the control is
// changed the callback will be called.
LLRadioGroup(const LLString& name, const LLRect& rect,
const LLString& control_name,
LLUICtrlCallback callback = NULL,
void* userdata = NULL,
BOOL border = TRUE);
// Another radio group constructor, but this one doesn't rely on
// needing a control
LLRadioGroup(const LLString& name, const LLRect& rect,
S32 initial_index,
LLUICtrlCallback callback = NULL,
void* userdata = NULL,
BOOL border = TRUE);
virtual ~LLRadioGroup();
virtual EWidgetType getWidgetType() const { return WIDGET_TYPE_RADIO_GROUP; }
virtual LLString getWidgetTag() const { return LL_RADIO_GROUP_TAG; }
virtual BOOL handleKeyHere(KEY key, MASK mask, BOOL called_from_parent);
virtual void setEnabled(BOOL enabled);
virtual LLXMLNodePtr getXML(bool save_children = true) const;
static LLView* fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactory *factory);
void setIndexEnabled(S32 index, BOOL enabled);
// return the index value of the selected item
S32 getSelectedIndex() const { return mSelectedIndex; }
// set the index value programatically
BOOL setSelectedIndex(S32 index, BOOL from_event = FALSE);
// Accept and retrieve strings of the radio group control names
virtual void setValue(const LLSD& value );
virtual LLSD getValue() const;
// Draw the group, but also fix the highlighting based on the control.
void draw();
// You must use this method to add buttons to a radio group.
// Don't use addChild -- it won't set the callback function
// correctly.
LLRadioCtrl* addRadioButton(const LLString& name, const LLString& label, const LLRect& rect, const LLFontGL* font);
LLRadioCtrl* getRadioButton(const S32& index) { return mRadioButtons[index]; }
// Update the control as needed. Userdata must be a pointer to the button.
static void onClickButton(LLUICtrl* radio, void* userdata);
//========================================================================
LLCtrlSelectionInterface* getSelectionInterface() { return (LLCtrlSelectionInterface*)this; };
// LLCtrlSelectionInterface functions
/*virtual*/ S32 getItemCount() const { return mRadioButtons.size(); }
/*virtual*/ BOOL getCanSelect() const { return TRUE; }
/*virtual*/ BOOL selectFirstItem() { return setSelectedIndex(0); }
/*virtual*/ BOOL selectNthItem( S32 index ) { return setSelectedIndex(index); }
/*virtual*/ BOOL selectItemRange( S32 first, S32 last ) { return setSelectedIndex(first); }
/*virtual*/ S32 getFirstSelectedIndex() const { return getSelectedIndex(); }
/*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);
private:
// protected function shared by the two constructors.
void init(BOOL border);
S32 mSelectedIndex;
typedef std::vector<LLRadioCtrl*> button_list_t;
button_list_t mRadioButtons;
BOOL mHasBorder;
};
#endif
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