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/**
* @file LLAccordionCtrl.h
* @brief Accordion Panel implementation
*
* $LicenseInfo:firstyear=2004&license=viewergpl$
*
* Copyright (c) 2004-2009, 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.
* $/LicenseInfo$
*/
#ifndef LL_ACCORDIONCTRL_H
#define LL_ACCORDIONCTRL_H
#include "llpanel.h"
#include "lltextbox.h"
#include "llscrollbar.h"
#include <vector>
#include <algorithm>
#include <string>
class LLAccordionCtrlTab;
class LLAccordionCtrl: public LLPanel
{
private:
std::vector<LLAccordionCtrlTab*> mAccordionTabs;
void ctrlSetLeftTopAndSize(LLView* panel, S32 left, S32 top, S32 width, S32 height);
void ctrlShiftVertical(LLView* panel,S32 delta);
void onCollapseCtrlCloseOpen(S16 panel_num);
void shiftAccordionTabs(S16 panel_num, S32 delta);
public:
/**
* Abstract comparator for accordion tabs.
*/
class LLTabComparator
{
public:
LLTabComparator() {};
virtual ~LLTabComparator() {};
/** Returns true if tab1 < tab2, false otherwise */
virtual bool compare(const LLAccordionCtrlTab* tab1, const LLAccordionCtrlTab* tab2) const = 0;
};
struct Params
: public LLInitParam::Block<Params, LLPanel::Params>
{
Optional<bool> single_expansion,
fit_parent; /* Accordion will fit its parent size, controls that are placed into
accordion tabs are responsible for scrolling their content.
*NOTE fit_parent works best when combined with single_expansion.
Accordion view should implement getRequiredRect() and provide valid height*/
Optional<LLTextBox::Params> empty_accordion_text;
Params()
: single_expansion("single_expansion",false)
, fit_parent("fit_parent", false)
, empty_accordion_text("empty_accordion_text")
{};
};
LLAccordionCtrl(const Params& params);
LLAccordionCtrl();
virtual ~LLAccordionCtrl();
virtual BOOL postBuild();
virtual BOOL handleRightMouseDown ( S32 x, S32 y, MASK mask);
virtual BOOL handleScrollWheel ( S32 x, S32 y, S32 clicks );
virtual BOOL handleKeyHere (KEY key, MASK mask);
virtual BOOL handleDragAndDrop (S32 x, S32 y, MASK mask, BOOL drop,
EDragAndDropType cargo_type,
void* cargo_data,
EAcceptance* accept,
std::string& tooltip_msg);
//
// Call reshape after changing splitter's size
virtual void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE);
void addCollapsibleCtrl(LLView* view);
void removeCollapsibleCtrl(LLView* view);
void arrange();
void draw();
void onScrollPosChangeCallback(S32, LLScrollbar*);
void onOpen (const LLSD& key);
S32 notifyParent(const LLSD& info);
void reset ();
void setComparator(const LLTabComparator* comp) { mTabComparator = comp; }
void sort();
/**
* Sets filter substring as a search_term for help text when there are no any visible tabs.
*/
void setFilterSubString(const std::string& filter_string);
/**
* This method returns the first expanded accordion tab.
* It is expected to be called for accordion which doesn't allow multiple
* tabs to be expanded. Use with care.
*/
const LLAccordionCtrlTab* getExpandedTab() const;
private:
void initNoTabsWidget(const LLTextBox::Params& tb_params);
void updateNoTabsHelpTextVisibility();
void arrangeSinge();
void arrangeMultiple();
// Calc Splitter's height that is necessary to display all child content
S32 calcRecuiredHeight();
S32 getRecuiredHeight() const { return mInnerRect.getHeight(); }
S32 calcExpandedTabHeight(S32 tab_index = 0, S32 available_height = 0);
void updateLayout (S32 width, S32 height);
void show_hide_scrollbar (S32 width, S32 height);
void showScrollbar (S32 width, S32 height);
void hideScrollbar (S32 width, S32 height);
BOOL autoScroll (S32 x, S32 y);
/**
* An adaptor for LLTabComparator
*/
struct LLComparatorAdaptor
{
LLComparatorAdaptor(const LLTabComparator& comparator) : mComparator(comparator) {};
bool operator()(const LLAccordionCtrlTab* tab1, const LLAccordionCtrlTab* tab2)
{
return mComparator.compare(tab1, tab2);
}
const LLTabComparator& mComparator;
};
private:
LLRect mInnerRect;
LLScrollbar* mScrollbar;
bool mSingleExpansion;
bool mFitParent;
bool mAutoScrolling;
F32 mAutoScrollRate;
LLTextBox* mNoVisibleTabsHelpText;
std::string mNoVisibleTabsOrigString;
LLAccordionCtrlTab* mSelectedTab;
const LLTabComparator* mTabComparator;
};
#endif // LL_LLSPLITTER_H
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