684 lines
21 KiB
C++
684 lines
21 KiB
C++
/**
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* @file llscrollcontainer.cpp
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* @brief LLScrollContainer base class
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*
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* $LicenseInfo:firstyear=2001&license=viewergpl$
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*
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* Copyright (c) 2001-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "llscrollcontainer.h"
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#include "llrender.h"
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#include "llcontainerview.h"
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#include "lllocalcliprect.h"
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// #include "llfolderview.h"
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#include "llscrollingpanellist.h"
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#include "llscrollbar.h"
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#include "llui.h"
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#include "llkeyboard.h"
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#include "llviewborder.h"
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#include "llfocusmgr.h"
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#include "llframetimer.h"
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#include "lluictrlfactory.h"
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#include "llpanel.h"
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#include "llfontgl.h"
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///----------------------------------------------------------------------------
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/// Local function declarations, constants, enums, and typedefs
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///----------------------------------------------------------------------------
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static const S32 HORIZONTAL_MULTIPLE = 8;
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static const S32 VERTICAL_MULTIPLE = 16;
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static const F32 AUTO_SCROLL_RATE_ACCEL = 120.f;
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///----------------------------------------------------------------------------
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/// Class LLScrollContainer
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///----------------------------------------------------------------------------
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static LLDefaultChildRegistry::Register<LLScrollContainer> r("scroll_container");
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#include "llscrollingpanellist.h"
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#include "llcontainerview.h"
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#include "llpanel.h"
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static ScrollContainerRegistry::Register<LLScrollingPanelList> r1("scrolling_panel_list");
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static ScrollContainerRegistry::Register<LLContainerView> r2("container_view");
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static ScrollContainerRegistry::Register<LLPanel> r3("panel", &LLPanel::fromXML);
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LLScrollContainer::Params::Params()
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: is_opaque("opaque"),
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bg_color("color"),
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border_visible("border_visible"),
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hide_scrollbar("hide_scrollbar"),
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min_auto_scroll_rate("min_auto_scroll_rate", 100),
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max_auto_scroll_rate("max_auto_scroll_rate", 1000),
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reserve_scroll_corner("reserve_scroll_corner", false)
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{
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name = "scroll_container";
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mouse_opaque(true);
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tab_stop(false);
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}
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// Default constructor
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LLScrollContainer::LLScrollContainer(const LLScrollContainer::Params& p)
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: LLUICtrl(p),
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mAutoScrolling( FALSE ),
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mAutoScrollRate( 0.f ),
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mBackgroundColor(p.bg_color()),
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mIsOpaque(p.is_opaque),
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mHideScrollbar(p.hide_scrollbar),
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mReserveScrollCorner(p.reserve_scroll_corner),
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mMinAutoScrollRate(p.min_auto_scroll_rate),
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mMaxAutoScrollRate(p.max_auto_scroll_rate),
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mScrolledView(NULL)
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{
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static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0);
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LLRect border_rect( 0, getRect().getHeight(), getRect().getWidth(), 0 );
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LLViewBorder::Params params;
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params.name("scroll border");
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params.rect(border_rect);
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params.visible(p.border_visible);
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params.bevel_style(LLViewBorder::BEVEL_IN);
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mBorder = LLUICtrlFactory::create<LLViewBorder> (params);
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LLView::addChild( mBorder );
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mInnerRect.set( 0, getRect().getHeight(), getRect().getWidth(), 0 );
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mInnerRect.stretch( -mBorder->getBorderWidth() );
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LLRect vertical_scroll_rect = mInnerRect;
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vertical_scroll_rect.mLeft = vertical_scroll_rect.mRight - scrollbar_size;
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LLScrollbar::Params sbparams;
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sbparams.name("scrollable vertical");
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sbparams.rect(vertical_scroll_rect);
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sbparams.orientation(LLScrollbar::VERTICAL);
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sbparams.doc_size(mInnerRect.getHeight());
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sbparams.doc_pos(0);
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sbparams.page_size(mInnerRect.getHeight());
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sbparams.step_size(VERTICAL_MULTIPLE);
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sbparams.follows.flags(FOLLOWS_RIGHT | FOLLOWS_TOP | FOLLOWS_BOTTOM);
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sbparams.visible(false);
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sbparams.change_callback(p.scroll_callback);
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mScrollbar[VERTICAL] = LLUICtrlFactory::create<LLScrollbar> (sbparams);
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LLView::addChild( mScrollbar[VERTICAL] );
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LLRect horizontal_scroll_rect = mInnerRect;
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horizontal_scroll_rect.mTop = horizontal_scroll_rect.mBottom + scrollbar_size;
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sbparams.name("scrollable horizontal");
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sbparams.rect(horizontal_scroll_rect);
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sbparams.orientation(LLScrollbar::HORIZONTAL);
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sbparams.doc_size(mInnerRect.getWidth());
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sbparams.doc_pos(0);
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sbparams.page_size(mInnerRect.getWidth());
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sbparams.step_size(VERTICAL_MULTIPLE);
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sbparams.visible(false);
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sbparams.follows.flags(FOLLOWS_LEFT | FOLLOWS_RIGHT);
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sbparams.change_callback(p.scroll_callback);
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mScrollbar[HORIZONTAL] = LLUICtrlFactory::create<LLScrollbar> (sbparams);
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LLView::addChild( mScrollbar[HORIZONTAL] );
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}
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// Destroys the object
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LLScrollContainer::~LLScrollContainer( void )
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{
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// mScrolledView and mScrollbar are child views, so the LLView
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// destructor takes care of memory deallocation.
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for( S32 i = 0; i < SCROLLBAR_COUNT; i++ )
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{
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mScrollbar[i] = NULL;
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}
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mScrolledView = NULL;
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}
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// internal scrollbar handlers
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// virtual
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void LLScrollContainer::scrollHorizontal( S32 new_pos )
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{
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//llinfos << "LLScrollContainer::scrollHorizontal()" << llendl;
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if( mScrolledView )
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{
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LLRect doc_rect = mScrolledView->getRect();
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S32 old_pos = -(doc_rect.mLeft - mInnerRect.mLeft);
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mScrolledView->translate( -(new_pos - old_pos), 0 );
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}
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}
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// virtual
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void LLScrollContainer::scrollVertical( S32 new_pos )
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{
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// llinfos << "LLScrollContainer::scrollVertical() " << new_pos << llendl;
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if( mScrolledView )
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{
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LLRect doc_rect = mScrolledView->getRect();
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S32 old_pos = doc_rect.mTop - mInnerRect.mTop;
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mScrolledView->translate( 0, new_pos - old_pos );
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}
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}
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// LLView functionality
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void LLScrollContainer::reshape(S32 width, S32 height,
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BOOL called_from_parent)
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{
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LLUICtrl::reshape( width, height, called_from_parent );
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mInnerRect = getLocalRect();
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mInnerRect.stretch( -mBorder->getBorderWidth() );
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if (mScrolledView)
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{
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const LLRect& scrolled_rect = mScrolledView->getRect();
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S32 visible_width = 0;
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S32 visible_height = 0;
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BOOL show_v_scrollbar = FALSE;
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BOOL show_h_scrollbar = FALSE;
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calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar );
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mScrollbar[VERTICAL]->setDocSize( scrolled_rect.getHeight() );
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mScrollbar[VERTICAL]->setPageSize( visible_height );
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mScrollbar[HORIZONTAL]->setDocSize( scrolled_rect.getWidth() );
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mScrollbar[HORIZONTAL]->setPageSize( visible_width );
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updateScroll();
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}
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}
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BOOL LLScrollContainer::handleKeyHere(KEY key, MASK mask)
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{
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// allow scrolled view to handle keystrokes in case it delegated keyboard focus
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// to the scroll container.
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// NOTE: this should not recurse indefinitely as handleKeyHere
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// should not propagate to parent controls, so mScrolledView should *not*
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// call LLScrollContainer::handleKeyHere in turn
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if (mScrolledView && mScrolledView->handleKeyHere(key, mask))
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{
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return TRUE;
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}
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for( S32 i = 0; i < SCROLLBAR_COUNT; i++ )
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{
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if( mScrollbar[i]->handleKeyHere(key, mask) )
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{
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updateScroll();
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return TRUE;
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}
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}
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return FALSE;
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}
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BOOL LLScrollContainer::handleScrollWheel( S32 x, S32 y, S32 clicks )
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{
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for( S32 i = 0; i < SCROLLBAR_COUNT; i++ )
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{
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// Note: tries vertical and then horizontal
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// Pretend the mouse is over the scrollbar
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if( mScrollbar[i]->handleScrollWheel( 0, 0, clicks ) )
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{
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updateScroll();
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return TRUE;
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}
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}
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// Eat scroll wheel event (to avoid scrolling nested containers?)
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return TRUE;
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}
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BOOL LLScrollContainer::handleDragAndDrop(S32 x, S32 y, MASK mask,
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BOOL drop,
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EDragAndDropType cargo_type,
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void* cargo_data,
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EAcceptance* accept,
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std::string& tooltip_msg)
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{
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static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0);
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// Scroll folder view if needed. Never accepts a drag or drop.
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*accept = ACCEPT_NO;
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BOOL handled = autoScroll(x, y);
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if( !handled )
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{
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handled = childrenHandleDragAndDrop(x, y, mask, drop, cargo_type,
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cargo_data, accept, tooltip_msg) != NULL;
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}
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return TRUE;
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}
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bool LLScrollContainer::autoScroll(S32 x, S32 y)
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{
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static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0);
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bool scrolling = false;
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if( mScrollbar[HORIZONTAL]->getVisible() || mScrollbar[VERTICAL]->getVisible() )
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{
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LLRect screen_local_extents;
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screenRectToLocal(getRootView()->getLocalRect(), &screen_local_extents);
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LLRect inner_rect_local( 0, mInnerRect.getHeight(), mInnerRect.getWidth(), 0 );
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if( mScrollbar[HORIZONTAL]->getVisible() )
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{
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inner_rect_local.mBottom += scrollbar_size;
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}
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if( mScrollbar[VERTICAL]->getVisible() )
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{
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inner_rect_local.mRight -= scrollbar_size;
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}
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// clip rect against root view
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inner_rect_local.intersectWith(screen_local_extents);
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S32 auto_scroll_speed = llround(mAutoScrollRate * LLFrameTimer::getFrameDeltaTimeF32());
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// autoscroll region should take up no more than one third of visible scroller area
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S32 auto_scroll_region_width = llmin(inner_rect_local.getWidth() / 3, 10);
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S32 auto_scroll_region_height = llmin(inner_rect_local.getHeight() / 3, 10);
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if( mScrollbar[HORIZONTAL]->getVisible() )
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{
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LLRect left_scroll_rect = screen_local_extents;
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left_scroll_rect.mRight = inner_rect_local.mLeft + auto_scroll_region_width;
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if( left_scroll_rect.pointInRect( x, y ) && (mScrollbar[HORIZONTAL]->getDocPos() > 0) )
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{
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mScrollbar[HORIZONTAL]->setDocPos( mScrollbar[HORIZONTAL]->getDocPos() - auto_scroll_speed );
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mAutoScrolling = TRUE;
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scrolling = true;
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}
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LLRect right_scroll_rect = screen_local_extents;
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right_scroll_rect.mLeft = inner_rect_local.mRight - auto_scroll_region_width;
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if( right_scroll_rect.pointInRect( x, y ) && (mScrollbar[HORIZONTAL]->getDocPos() < mScrollbar[HORIZONTAL]->getDocPosMax()) )
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{
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mScrollbar[HORIZONTAL]->setDocPos( mScrollbar[HORIZONTAL]->getDocPos() + auto_scroll_speed );
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mAutoScrolling = TRUE;
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scrolling = true;
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}
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}
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if( mScrollbar[VERTICAL]->getVisible() )
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{
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LLRect bottom_scroll_rect = screen_local_extents;
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bottom_scroll_rect.mTop = inner_rect_local.mBottom + auto_scroll_region_height;
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if( bottom_scroll_rect.pointInRect( x, y ) && (mScrollbar[VERTICAL]->getDocPos() < mScrollbar[VERTICAL]->getDocPosMax()) )
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{
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mScrollbar[VERTICAL]->setDocPos( mScrollbar[VERTICAL]->getDocPos() + auto_scroll_speed );
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mAutoScrolling = TRUE;
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scrolling = true;
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}
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LLRect top_scroll_rect = screen_local_extents;
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top_scroll_rect.mBottom = inner_rect_local.mTop - auto_scroll_region_height;
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if( top_scroll_rect.pointInRect( x, y ) && (mScrollbar[VERTICAL]->getDocPos() > 0) )
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{
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mScrollbar[VERTICAL]->setDocPos( mScrollbar[VERTICAL]->getDocPos() - auto_scroll_speed );
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mAutoScrolling = TRUE;
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scrolling = true;
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}
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}
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}
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return scrolling;
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}
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void LLScrollContainer::calcVisibleSize( S32 *visible_width, S32 *visible_height, BOOL* show_h_scrollbar, BOOL* show_v_scrollbar ) const
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{
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const LLRect& doc_rect = getScrolledViewRect();
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static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0);
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S32 doc_width = doc_rect.getWidth();
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S32 doc_height = doc_rect.getHeight();
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S32 border_width = (mBorder->getVisible() ? 2 * mBorder->getBorderWidth() : 0);
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*visible_width = getRect().getWidth() - border_width;
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*visible_height = getRect().getHeight() - border_width;
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*show_v_scrollbar = FALSE;
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*show_h_scrollbar = FALSE;
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if (!mHideScrollbar)
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{
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if( *visible_height < doc_height )
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{
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*show_v_scrollbar = TRUE;
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*visible_width -= scrollbar_size;
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}
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if( *visible_width < doc_width )
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{
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*show_h_scrollbar = TRUE;
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*visible_height -= scrollbar_size;
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// Must retest now that visible_height has changed
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if( !*show_v_scrollbar && (*visible_height < doc_height) )
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{
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*show_v_scrollbar = TRUE;
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*visible_width -= scrollbar_size;
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}
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}
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}
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}
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void LLScrollContainer::draw()
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{
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static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0);
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if (mAutoScrolling)
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{
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// add acceleration to autoscroll
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mAutoScrollRate = llmin(mAutoScrollRate + (LLFrameTimer::getFrameDeltaTimeF32() * AUTO_SCROLL_RATE_ACCEL), mMaxAutoScrollRate);
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}
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else
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{
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// reset to minimum for next time
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mAutoScrollRate = mMinAutoScrollRate;
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}
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// clear this flag to be set on next call to autoScroll
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mAutoScrolling = FALSE;
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// auto-focus when scrollbar active
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// this allows us to capture user intent (i.e. stop automatically scrolling the view/etc)
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if (!hasFocus()
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&& (mScrollbar[VERTICAL]->hasMouseCapture() || mScrollbar[HORIZONTAL]->hasMouseCapture()))
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{
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focusFirstItem();
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}
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// Draw background
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if( mIsOpaque )
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{
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gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
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gGL.color4fv( mBackgroundColor.get().mV );
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gl_rect_2d( mInnerRect );
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}
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// Draw mScrolledViews and update scroll bars.
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// get a scissor region ready, and draw the scrolling view. The
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// scissor region ensures that we don't draw outside of the bounds
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// of the rectangle.
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if( mScrolledView )
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{
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updateScroll();
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// Draw the scrolled area.
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{
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S32 visible_width = 0;
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S32 visible_height = 0;
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BOOL show_v_scrollbar = FALSE;
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BOOL show_h_scrollbar = FALSE;
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calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar );
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LLLocalClipRect clip(LLRect(mInnerRect.mLeft,
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mInnerRect.mBottom + (show_h_scrollbar ? scrollbar_size : 0) + visible_height,
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visible_width,
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mInnerRect.mBottom + (show_h_scrollbar ? scrollbar_size : 0)
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));
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drawChild(mScrolledView);
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}
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}
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// Highlight border if a child of this container has keyboard focus
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if( mBorder->getVisible() )
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{
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mBorder->setKeyboardFocusHighlight( gFocusMgr.childHasKeyboardFocus(this) );
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}
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// Draw all children except mScrolledView
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// Note: scrollbars have been adjusted by above drawing code
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for (child_list_const_reverse_iter_t child_iter = getChildList()->rbegin();
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child_iter != getChildList()->rend(); ++child_iter)
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{
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LLView *viewp = *child_iter;
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if( sDebugRects )
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{
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sDepth++;
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}
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if( (viewp != mScrolledView) && viewp->getVisible() )
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{
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drawChild(viewp);
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}
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if( sDebugRects )
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{
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sDepth--;
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}
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}
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} // end draw
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bool LLScrollContainer::addChild(LLView* view, S32 tab_group)
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{
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if (!mScrolledView)
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{
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// Use the first panel or container as the scrollable view (bit of a hack)
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mScrolledView = view;
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}
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bool ret_val = LLView::addChild(view, tab_group);
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//bring the scrollbars to the front
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sendChildToFront( mScrollbar[HORIZONTAL] );
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sendChildToFront( mScrollbar[VERTICAL] );
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return ret_val;
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}
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void LLScrollContainer::updateScroll()
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{
|
|
if (!mScrolledView)
|
|
{
|
|
return;
|
|
}
|
|
static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0);
|
|
LLRect doc_rect = mScrolledView->getRect();
|
|
S32 doc_width = doc_rect.getWidth();
|
|
S32 doc_height = doc_rect.getHeight();
|
|
S32 visible_width = 0;
|
|
S32 visible_height = 0;
|
|
BOOL show_v_scrollbar = FALSE;
|
|
BOOL show_h_scrollbar = FALSE;
|
|
calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar );
|
|
|
|
S32 border_width = mBorder->getBorderWidth();
|
|
if( show_v_scrollbar )
|
|
{
|
|
if( doc_rect.mTop < getRect().getHeight() - border_width )
|
|
{
|
|
mScrolledView->translate( 0, getRect().getHeight() - border_width - doc_rect.mTop );
|
|
}
|
|
|
|
scrollVertical( mScrollbar[VERTICAL]->getDocPos() );
|
|
mScrollbar[VERTICAL]->setVisible( TRUE );
|
|
|
|
S32 v_scrollbar_height = visible_height;
|
|
if( !show_h_scrollbar && mReserveScrollCorner )
|
|
{
|
|
v_scrollbar_height -= scrollbar_size;
|
|
}
|
|
mScrollbar[VERTICAL]->reshape( scrollbar_size, v_scrollbar_height, TRUE );
|
|
|
|
// Make room for the horizontal scrollbar (or not)
|
|
S32 v_scrollbar_offset = 0;
|
|
if( show_h_scrollbar || mReserveScrollCorner )
|
|
{
|
|
v_scrollbar_offset = scrollbar_size;
|
|
}
|
|
LLRect r = mScrollbar[VERTICAL]->getRect();
|
|
r.translate( 0, mInnerRect.mBottom - r.mBottom + v_scrollbar_offset );
|
|
mScrollbar[VERTICAL]->setRect( r );
|
|
}
|
|
else
|
|
{
|
|
mScrolledView->translate( 0, getRect().getHeight() - border_width - doc_rect.mTop );
|
|
|
|
mScrollbar[VERTICAL]->setVisible( FALSE );
|
|
mScrollbar[VERTICAL]->setDocPos( 0 );
|
|
}
|
|
|
|
if( show_h_scrollbar )
|
|
{
|
|
if( doc_rect.mLeft > border_width )
|
|
{
|
|
mScrolledView->translate( border_width - doc_rect.mLeft, 0 );
|
|
mScrollbar[HORIZONTAL]->setDocPos( 0 );
|
|
}
|
|
else
|
|
{
|
|
scrollHorizontal( mScrollbar[HORIZONTAL]->getDocPos() );
|
|
}
|
|
|
|
mScrollbar[HORIZONTAL]->setVisible( TRUE );
|
|
S32 h_scrollbar_width = visible_width;
|
|
if( !show_v_scrollbar && mReserveScrollCorner )
|
|
{
|
|
h_scrollbar_width -= scrollbar_size;
|
|
}
|
|
mScrollbar[HORIZONTAL]->reshape( h_scrollbar_width, scrollbar_size, TRUE );
|
|
}
|
|
else
|
|
{
|
|
mScrolledView->translate( border_width - doc_rect.mLeft, 0 );
|
|
|
|
mScrollbar[HORIZONTAL]->setVisible( FALSE );
|
|
mScrollbar[HORIZONTAL]->setDocPos( 0 );
|
|
}
|
|
|
|
mScrollbar[HORIZONTAL]->setDocSize( doc_width );
|
|
mScrollbar[HORIZONTAL]->setPageSize( visible_width );
|
|
|
|
mScrollbar[VERTICAL]->setDocSize( doc_height );
|
|
mScrollbar[VERTICAL]->setPageSize( visible_height );
|
|
} // end updateScroll
|
|
|
|
void LLScrollContainer::setBorderVisible(BOOL b)
|
|
{
|
|
mBorder->setVisible( b );
|
|
}
|
|
|
|
LLRect LLScrollContainer::getVisibleContentRect()
|
|
{
|
|
updateScroll();
|
|
LLRect visible_rect = getContentWindowRect();
|
|
LLRect contents_rect = mScrolledView->getRect();
|
|
visible_rect.translate(-contents_rect.mLeft, -contents_rect.mBottom);
|
|
return visible_rect;
|
|
}
|
|
|
|
LLRect LLScrollContainer::getContentWindowRect() const
|
|
{
|
|
LLRect scroller_view_rect;
|
|
S32 visible_width = 0;
|
|
S32 visible_height = 0;
|
|
BOOL show_h_scrollbar = FALSE;
|
|
BOOL show_v_scrollbar = FALSE;
|
|
calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar );
|
|
S32 border_width = mBorder->getVisible() ? mBorder->getBorderWidth() : 0;
|
|
scroller_view_rect.setOriginAndSize(border_width,
|
|
show_h_scrollbar ? mScrollbar[HORIZONTAL]->getRect().mTop : border_width,
|
|
visible_width,
|
|
visible_height);
|
|
return scroller_view_rect;
|
|
}
|
|
|
|
// rect is in document coordinates, constraint is in display coordinates relative to content window rect
|
|
void LLScrollContainer::scrollToShowRect(const LLRect& rect, const LLRect& constraint)
|
|
{
|
|
if (!mScrolledView)
|
|
{
|
|
llwarns << "LLScrollContainer::scrollToShowRect with no view!" << llendl;
|
|
return;
|
|
}
|
|
|
|
LLRect content_window_rect = getContentWindowRect();
|
|
// get document rect
|
|
LLRect scrolled_rect = mScrolledView->getRect();
|
|
|
|
// shrink target rect to fit within constraint region, biasing towards top left
|
|
LLRect rect_to_constrain = rect;
|
|
rect_to_constrain.mBottom = llmax(rect_to_constrain.mBottom, rect_to_constrain.mTop - constraint.getHeight());
|
|
rect_to_constrain.mRight = llmin(rect_to_constrain.mRight, rect_to_constrain.mLeft + constraint.getWidth());
|
|
|
|
// calculate allowable positions for scroller window in document coordinates
|
|
LLRect allowable_scroll_rect(rect_to_constrain.mRight - constraint.mRight,
|
|
rect_to_constrain.mBottom - constraint.mBottom,
|
|
rect_to_constrain.mLeft - constraint.mLeft,
|
|
rect_to_constrain.mTop - constraint.mTop);
|
|
|
|
// translate from allowable region for lower left corner to upper left corner
|
|
allowable_scroll_rect.translate(0, content_window_rect.getHeight());
|
|
|
|
S32 vert_pos = llclamp(mScrollbar[VERTICAL]->getDocPos(),
|
|
mScrollbar[VERTICAL]->getDocSize() - allowable_scroll_rect.mTop, // min vertical scroll
|
|
mScrollbar[VERTICAL]->getDocSize() - allowable_scroll_rect.mBottom); // max vertical scroll
|
|
|
|
mScrollbar[VERTICAL]->setDocSize( scrolled_rect.getHeight() );
|
|
mScrollbar[VERTICAL]->setPageSize( content_window_rect.getHeight() );
|
|
mScrollbar[VERTICAL]->setDocPos( vert_pos );
|
|
|
|
S32 horizontal_pos = llclamp(mScrollbar[HORIZONTAL]->getDocPos(),
|
|
allowable_scroll_rect.mLeft,
|
|
allowable_scroll_rect.mRight);
|
|
|
|
mScrollbar[HORIZONTAL]->setDocSize( scrolled_rect.getWidth() );
|
|
mScrollbar[HORIZONTAL]->setPageSize( content_window_rect.getWidth() );
|
|
mScrollbar[HORIZONTAL]->setDocPos( horizontal_pos );
|
|
|
|
// propagate scroll to document
|
|
updateScroll();
|
|
}
|
|
|
|
void LLScrollContainer::pageUp(S32 overlap)
|
|
{
|
|
mScrollbar[VERTICAL]->pageUp(overlap);
|
|
updateScroll();
|
|
}
|
|
|
|
void LLScrollContainer::pageDown(S32 overlap)
|
|
{
|
|
mScrollbar[VERTICAL]->pageDown(overlap);
|
|
updateScroll();
|
|
}
|
|
|
|
void LLScrollContainer::goToTop()
|
|
{
|
|
mScrollbar[VERTICAL]->setDocPos(0);
|
|
updateScroll();
|
|
}
|
|
|
|
void LLScrollContainer::goToBottom()
|
|
{
|
|
mScrollbar[VERTICAL]->setDocPos(mScrollbar[VERTICAL]->getDocSize());
|
|
updateScroll();
|
|
}
|
|
|
|
S32 LLScrollContainer::getBorderWidth() const
|
|
{
|
|
if (mBorder)
|
|
{
|
|
return mBorder->getBorderWidth();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|