lltabcontainer.cpp

/** 
 * @file lltabcontainer.cpp
 * @brief LLTabContainerCommon base class
 *
 * $LicenseInfo:firstyear=2001&license=viewergpl$
 * 
 * Copyright (c) 2001-2007, 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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.
 * $/LicenseInfo$
 */

#include "linden_common.h"

#include "lltabcontainer.h"

#include "llfocusmgr.h"
#include "llfontgl.h"
#include "llgl.h"

#include "llbutton.h"
#include "llrect.h"
#include "llpanel.h"
#include "llresmgr.h"
#include "llkeyboard.h"
#include "llresizehandle.h"
#include "llui.h"
#include "lltextbox.h"
#include "llcontrol.h"
#include "llcriticaldamp.h"
#include "lluictrlfactory.h"

#include "lltabcontainervertical.h"

#include "llglheaders.h"

const F32 SCROLL_STEP_TIME = 0.4f;
const F32 SCROLL_DELAY_TIME = 0.5f;
const S32 TAB_PADDING = 15;
const S32 TABCNTR_TAB_MIN_WIDTH = 60;
const S32 TABCNTR_TAB_MAX_WIDTH = 150;
const S32 TABCNTR_TAB_PARTIAL_WIDTH = 12;	// When tabs are parially obscured, how much can you still see.
const S32 TABCNTR_TAB_HEIGHT = 16;
const S32 TABCNTR_ARROW_BTN_SIZE = 16;
const S32 TABCNTR_BUTTON_PANEL_OVERLAP = 1;  // how many pixels the tab buttons and tab panels overlap.
const S32 TABCNTR_TAB_H_PAD = 4;


LLTabContainerCommon::LLTabContainerCommon( 
	const LLString& name, const LLRect& rect, 
	TabPosition pos, 
	void(*close_callback)(void*), void* callback_userdata,
	BOOL bordered )
	: 
	LLPanel(name, rect, bordered),
	mCurrentTabIdx(-1),
	mTabsHidden(FALSE),
	mScrolled(FALSE),
	mScrollPos(0),
	mScrollPosPixels(0),
	mMaxScrollPos(0),
	mCloseCallback( close_callback ),
	mCallbackUserdata( callback_userdata ),
	mTitleBox(NULL),
	mTopBorderHeight(LLPANEL_BORDER_WIDTH),
	mTabPosition(pos),
	mLockedTabCount(0)
{ 
	setMouseOpaque(FALSE);
	mDragAndDropDelayTimer.stop();
}


LLTabContainerCommon::LLTabContainerCommon( 
	const LLString& name,
	const LLString& rect_control,
	TabPosition pos,
	void(*close_callback)(void*), void* callback_userdata,
	BOOL bordered )
	: 
	LLPanel(name, rect_control, bordered),
	mCurrentTabIdx(-1),
	mTabsHidden(FALSE),
	mScrolled(FALSE),
	mScrollPos(0),
	mScrollPosPixels(0),
	mMaxScrollPos(0),
	mCloseCallback( close_callback ),
	mCallbackUserdata( callback_userdata ),
	mTitleBox(NULL),
	mTopBorderHeight(LLPANEL_BORDER_WIDTH),
	mTabPosition(pos),
	mLockedTabCount(0)
{
	setMouseOpaque(FALSE);
	mDragAndDropDelayTimer.stop();
}


LLTabContainerCommon::~LLTabContainerCommon()
{
	std::for_each(mTabList.begin(), mTabList.end(), DeletePointer());
}

LLView* LLTabContainerCommon::getChildByName(const LLString& name, BOOL recurse) const
{
	tuple_list_t::const_iterator itor;
	for (itor = mTabList.begin(); itor != mTabList.end(); ++itor)
	{
		LLPanel *panel = (*itor)->mTabPanel;
		if (panel->getName() == name)
		{
			return panel;
		}
	}
	if (recurse)
	{
		for (itor = mTabList.begin(); itor != mTabList.end(); ++itor)
		{
			LLPanel *panel = (*itor)->mTabPanel;
			LLView *child = panel->getChildByName(name, recurse);
			if (child)
			{
				return child;
			}
		}
	}
	return LLView::getChildByName(name, recurse);
}

void LLTabContainerCommon::addPlaceholder(LLPanel* child, const LLString& label)
{
	addTabPanel(child, label, FALSE, NULL, NULL, 0, TRUE);
}

void LLTabContainerCommon::lockTabs(S32 num_tabs)
{
	// count current tabs or use supplied value and ensure no new tabs get
	// inserted between them
	mLockedTabCount = num_tabs > 0 ? llmin(getTabCount(), num_tabs) : getTabCount();
}

void LLTabContainerCommon::unlockTabs()
{
	mLockedTabCount = 0;
}

void LLTabContainerCommon::removeTabPanel(LLPanel* child)
{
	BOOL has_focus = gFocusMgr.childHasKeyboardFocus(this);

	// If the tab being deleted is the selected one, select a different tab.
	for(std::vector<LLTabTuple*>::iterator iter = mTabList.begin(); iter != mTabList.end(); ++iter)
	{
		LLTabTuple* tuple = *iter;
		if( tuple->mTabPanel == child )
		{
 			removeChild( tuple->mButton );
 			delete tuple->mButton;

 			removeChild( tuple->mTabPanel );
// 			delete tuple->mTabPanel;
			
			mTabList.erase( iter );
			delete tuple;

			break;
		}
	}

	// make sure we don't have more locked tabs than we have tabs
	mLockedTabCount = llmin(getTabCount(), mLockedTabCount);

	if (mCurrentTabIdx >= (S32)mTabList.size())
	{
		mCurrentTabIdx = mTabList.size()-1;
	}
	selectTab(mCurrentTabIdx);
	if (has_focus)
	{
		LLPanel* panelp = getPanelByIndex(mCurrentTabIdx);