805 lines
20 KiB
C++
805 lines
20 KiB
C++
/**
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* @file lllayoutstack.cpp
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* @brief LLLayout class - dynamic stacking of UI elements
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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// Opaque view with a background and a border. Can contain LLUICtrls.
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#include "linden_common.h"
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#include "lllayoutstack.h"
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#include "lllocalcliprect.h"
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#include "llpanel.h"
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#include "llresizebar.h"
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#include "llcriticaldamp.h"
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#include "boost/foreach.hpp"
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static LLDefaultChildRegistry::Register<LLLayoutStack> register_layout_stack("layout_stack");
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static LLLayoutStack::LayoutStackRegistry::Register<LLLayoutPanel> register_layout_panel("layout_panel");
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static const F32 MAX_FRACTIONAL_VALUE = 0.99999f;
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void LLLayoutStack::OrientationNames::declareValues()
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{
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declare("horizontal", HORIZONTAL);
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declare("vertical", VERTICAL);
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}
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//
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// LLLayoutPanel
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//
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LLLayoutPanel::Params::Params()
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: expanded_min_dim("expanded_min_dim", 0),
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min_dim("min_dim", -1),
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user_resize("user_resize", false),
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auto_resize("auto_resize", true)
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{
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addSynonym(min_dim, "min_width");
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addSynonym(min_dim, "min_height");
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}
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LLLayoutPanel::LLLayoutPanel(const Params& p)
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: LLPanel(p),
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mExpandedMinDimSpecified(false),
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mExpandedMinDim(p.min_dim),
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mMinDim(p.min_dim),
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mAutoResize(p.auto_resize),
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mUserResize(p.user_resize),
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mCollapsed(FALSE),
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mCollapseAmt(0.f),
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mVisibleAmt(1.f), // default to fully visible
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mResizeBar(NULL),
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mFractionalSize(0.f),
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mTargetDim(0),
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mIgnoreReshape(false),
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mOrientation(LLLayoutStack::HORIZONTAL)
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{
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// Set the expanded min dim if it is provided, otherwise it gets the p.min_dim value
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if (p.expanded_min_dim.isProvided())
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{
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mExpandedMinDimSpecified = true;
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mExpandedMinDim = p.expanded_min_dim();
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}
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// panels initialized as hidden should not start out partially visible
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if (!getVisible())
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{
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mVisibleAmt = 0.f;
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}
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}
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void LLLayoutPanel::initFromParams(const Params& p)
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{
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LLPanel::initFromParams(p);
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setFollowsNone();
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}
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LLLayoutPanel::~LLLayoutPanel()
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{
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// probably not necessary, but...
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delete mResizeBar;
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mResizeBar = NULL;
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}
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F32 LLLayoutPanel::getAutoResizeFactor() const
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{
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return mVisibleAmt * (1.f - mCollapseAmt);
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}
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F32 LLLayoutPanel::getVisibleAmount() const
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{
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return mVisibleAmt;
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}
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S32 LLLayoutPanel::getLayoutDim() const
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{
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return llround((F32)((mOrientation == LLLayoutStack::HORIZONTAL)
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? getRect().getWidth()
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: getRect().getHeight()));
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}
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S32 LLLayoutPanel::getVisibleDim() const
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{
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F32 min_dim = getRelevantMinDim();
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return llround(mVisibleAmt
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* (min_dim
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+ (((F32)mTargetDim - min_dim) * (1.f - mCollapseAmt))));
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}
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void LLLayoutPanel::setOrientation( LLLayoutStack::ELayoutOrientation orientation )
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{
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mOrientation = orientation;
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S32 layout_dim = llround((F32)((mOrientation == LLLayoutStack::HORIZONTAL)
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? getRect().getWidth()
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: getRect().getHeight()));
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if (mMinDim == -1)
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{
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if (!mAutoResize)
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{
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setMinDim(layout_dim);
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}
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else
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{
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setMinDim(0);
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}
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}
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mTargetDim = llmax(layout_dim, getMinDim());
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}
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void LLLayoutPanel::setVisible( BOOL visible )
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{
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if (visible != getVisible())
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{
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LLLayoutStack* stackp = dynamic_cast<LLLayoutStack*>(getParent());
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if (stackp)
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{
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stackp->mNeedsLayout = true;
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}
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}
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LLPanel::setVisible(visible);
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}
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void LLLayoutPanel::reshape( S32 width, S32 height, BOOL called_from_parent /*= TRUE*/ )
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{
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if (!mIgnoreReshape && !mAutoResize)
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{
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mTargetDim = (mOrientation == LLLayoutStack::HORIZONTAL) ? width : height;
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}
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LLPanel::reshape(width, height, called_from_parent);
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}
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void LLLayoutPanel::handleReshape(const LLRect& new_rect, bool by_user)
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{
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LLLayoutStack* stackp = dynamic_cast<LLLayoutStack*>(getParent());
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if (stackp)
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{
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stackp->mNeedsLayout = true;
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if (by_user)
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{
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// tell layout stack to account for new shape
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stackp->updatePanelRect(this, new_rect);
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}
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}
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LLPanel::handleReshape(new_rect, by_user);
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}
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//
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// LLLayoutStack
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//
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LLLayoutStack::Params::Params()
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: orientation("orientation"),
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animate("animate", true),
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clip("clip", true),
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open_time_constant("open_time_constant", 0.02f),
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close_time_constant("close_time_constant", 0.03f),
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border_size("border_size", LLCachedControl<S32>(*LLUI::sSettingGroups["config"], "UIResizeBarHeight", 0))
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{}
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LLLayoutStack::LLLayoutStack(const LLLayoutStack::Params& p)
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: LLView(p),
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mPanelSpacing(p.border_size),
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mOrientation(p.orientation),
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mAnimate(p.animate),
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mAnimatedThisFrame(false),
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mNeedsLayout(true),
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mClip(p.clip),
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mOpenTimeConstant(p.open_time_constant),
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mCloseTimeConstant(p.close_time_constant)
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{}
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LLLayoutStack::~LLLayoutStack()
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{
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e_panel_list_t panels = mPanels; // copy list of panel pointers
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mPanels.clear(); // clear so that removeChild() calls don't cause trouble
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std::for_each(panels.begin(), panels.end(), DeletePointer());
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}
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void LLLayoutStack::draw()
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{
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updateLayout();
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// always clip to stack itself
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LLLocalClipRect clip(getLocalRect());
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BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
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{
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// clip to layout rectangle, not bounding rectangle
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LLRect clip_rect = panelp->getRect();
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// scale clipping rectangle by visible amount
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if (mOrientation == HORIZONTAL)
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{
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clip_rect.mRight = clip_rect.mLeft + panelp->getVisibleDim();
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}
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else
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{
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clip_rect.mBottom = clip_rect.mTop - panelp->getVisibleDim();
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}
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{LLLocalClipRect clip(clip_rect, mClip);
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// only force drawing invisible children if visible amount is non-zero
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drawChild(panelp, 0, 0, !clip_rect.isEmpty());
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}
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}
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mAnimatedThisFrame = false;
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}
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void LLLayoutStack::removeChild(LLView* view)
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{
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LLLayoutPanel* embedded_panelp = findEmbeddedPanel(dynamic_cast<LLPanel*>(view));
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if (embedded_panelp)
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{
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mPanels.erase(std::find(mPanels.begin(), mPanels.end(), embedded_panelp));
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delete embedded_panelp;
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updateFractionalSizes();
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mNeedsLayout = true;
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}
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LLView::removeChild(view);
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}
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BOOL LLLayoutStack::postBuild()
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{
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updateLayout();
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return TRUE;
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}
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bool LLLayoutStack::addChild(LLView* child, S32 tab_group)
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{
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LLLayoutPanel* panelp = dynamic_cast<LLLayoutPanel*>(child);
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if (panelp)
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{
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panelp->setOrientation(mOrientation);
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mPanels.push_back(panelp);
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createResizeBar(panelp);
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mNeedsLayout = true;
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}
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BOOL result = LLView::addChild(child, tab_group);
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updateFractionalSizes();
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return result;
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}
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void LLLayoutStack::addPanel(LLLayoutPanel* panel, EAnimate animate)
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{
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addChild(panel);
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// panel starts off invisible (collapsed)
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if (animate == ANIMATE)
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{
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panel->mVisibleAmt = 0.f;
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panel->setVisible(TRUE);
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}
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}
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void LLLayoutStack::collapsePanel(LLPanel* panel, BOOL collapsed)
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{
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LLLayoutPanel* panel_container = findEmbeddedPanel(panel);
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if (!panel_container) return;
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panel_container->mCollapsed = collapsed;
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mNeedsLayout = true;
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}
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void LLLayoutStack::updatePanelAutoResize(const std::string& panel_name, BOOL auto_resize)
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{
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LLLayoutPanel* panel = findEmbeddedPanelByName(panel_name);
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if (panel)
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{
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panel->mAutoResize = auto_resize;
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}
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}
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void LLLayoutStack::setPanelUserResize(const std::string& panel_name, BOOL user_resize)
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{
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LLLayoutPanel* panel = findEmbeddedPanelByName(panel_name);
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if (panel)
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{
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panel->mUserResize = user_resize;
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}
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}
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static LLFastTimer::DeclareTimer FTM_UPDATE_LAYOUT("Update LayoutStacks");
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void LLLayoutStack::updateLayout()
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{
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LLFastTimer ft(FTM_UPDATE_LAYOUT);
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if (!mNeedsLayout) return;
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bool animation_in_progress = animatePanels();
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F32 total_visible_fraction = 0.f;
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S32 space_to_distribute = (mOrientation == HORIZONTAL)
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? getRect().getWidth()
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: getRect().getHeight();
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// first, assign minimum dimensions
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LLLayoutPanel* panelp = NULL;
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BOOST_FOREACH(panelp, mPanels)
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{
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if (panelp->mAutoResize)
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{
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panelp->mTargetDim = panelp->getRelevantMinDim();
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}
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space_to_distribute -= panelp->getVisibleDim() + llround((F32)mPanelSpacing * panelp->getVisibleAmount());
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total_visible_fraction += panelp->mFractionalSize * panelp->getAutoResizeFactor();
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}
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llassert(total_visible_fraction < 1.01f);
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// don't need spacing after last panel
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space_to_distribute += panelp ? llround((F32)mPanelSpacing * panelp->getVisibleAmount()) : 0;
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// scale up space to distribute, since some of might will go to an invisible fraction of the auto-resize space
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space_to_distribute = (total_visible_fraction > 0.f)
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? llround((F32)space_to_distribute / total_visible_fraction)
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: space_to_distribute;
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if (space_to_distribute > 0)
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{ // give space proportionally to auto resize panels, even invisible ones
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BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
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{
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if (panelp->mAutoResize == TRUE)
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{
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S32 delta = llround((F32)space_to_distribute * panelp->mFractionalSize/* * panelp->getAutoResizeFactor()*/);
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panelp->mTargetDim += delta;
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}
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}
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}
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F32 cur_pos = (mOrientation == HORIZONTAL) ? 0.f : (F32)getRect().getHeight();
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BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
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{
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F32 panel_dim = panelp->mTargetDim;
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F32 panel_visible_dim = panelp->getVisibleDim();
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LLRect panel_rect;
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if (mOrientation == HORIZONTAL)
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{
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panel_rect.setLeftTopAndSize(llround(cur_pos),
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getRect().getHeight(),
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llround(panel_dim),
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getRect().getHeight());
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}
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else
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{
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panel_rect.setLeftTopAndSize(0,
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llround(cur_pos),
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getRect().getWidth(),
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llround(panel_dim));
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}
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panelp->setIgnoreReshape(true);
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panelp->setShape(panel_rect);
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panelp->setIgnoreReshape(false);
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static LLUICachedControl<S32> resize_bar_overlap ("UIResizeBarOverlap", 0);
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LLRect resize_bar_rect(panel_rect);
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F32 panel_spacing = (F32)mPanelSpacing * panelp->getVisibleAmount();
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if (mOrientation == HORIZONTAL)
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{
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resize_bar_rect.mLeft = panel_rect.mRight - resize_bar_overlap;
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resize_bar_rect.mRight = panel_rect.mRight + panel_spacing + resize_bar_overlap;
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cur_pos += panel_visible_dim + panel_spacing;
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}
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else //VERTICAL
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{
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resize_bar_rect.mTop = panel_rect.mBottom + resize_bar_overlap;
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resize_bar_rect.mBottom = panel_rect.mBottom - panel_spacing - resize_bar_overlap;
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cur_pos -= panel_visible_dim + panel_spacing;
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}
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panelp->mResizeBar->setShape(resize_bar_rect);
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}
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updateResizeBarLimits();
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// clear animation flag at end, since panel resizes will set it
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// and leave it set if there is any animation in progress
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mNeedsLayout = animation_in_progress;
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} // end LLLayoutStack::updateLayout
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LLLayoutPanel* LLLayoutStack::findEmbeddedPanel(LLPanel* panelp) const
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{
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if (!panelp) return NULL;
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e_panel_list_t::const_iterator panel_it;
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BOOST_FOREACH(LLLayoutPanel* p, mPanels)
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{
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if (p == panelp)
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{
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return p;
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}
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}
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return NULL;
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}
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LLLayoutPanel* LLLayoutStack::findEmbeddedPanelByName(const std::string& name) const
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{
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LLLayoutPanel* result = NULL;
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BOOST_FOREACH(LLLayoutPanel* p, mPanels)
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{
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if (p->getName() == name)
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{
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result = p;
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break;
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}
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}
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return result;
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}
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void LLLayoutStack::createResizeBar(LLLayoutPanel* panelp)
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{
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BOOST_FOREACH(LLLayoutPanel* lp, mPanels)
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{
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if (lp->mResizeBar == NULL)
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{
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LLResizeBar::Side side = (mOrientation == HORIZONTAL) ? LLResizeBar::RIGHT : LLResizeBar::BOTTOM;
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LLRect resize_bar_rect = getRect();
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LLResizeBar::Params resize_params;
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resize_params.name("resize");
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resize_params.resizing_view(lp);
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resize_params.min_size(lp->getRelevantMinDim());
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resize_params.side(side);
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resize_params.snapping_enabled(false);
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LLResizeBar* resize_bar = LLUICtrlFactory::create<LLResizeBar>(resize_params);
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lp->mResizeBar = resize_bar;
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LLView::addChild(resize_bar, 0);
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}
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}
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// bring all resize bars to the front so that they are clickable even over the panels
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// with a bit of overlap
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for (e_panel_list_t::iterator panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it)
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{
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LLResizeBar* resize_barp = (*panel_it)->mResizeBar;
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sendChildToFront(resize_barp);
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}
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}
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// update layout stack animations, etc. once per frame
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// NOTE: we use this to size world view based on animating UI, *before* we draw the UI
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// we might still need to call updateLayout during UI draw phase, in case UI elements
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// are resizing themselves dynamically
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//static
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void LLLayoutStack::updateClass()
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{
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for (instance_iter it = beginInstances(); it != endInstances(); ++it)
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{
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it->updateLayout();
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}
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}
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void LLLayoutStack::updateFractionalSizes()
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{
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F32 total_resizable_dim = 0;
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S32 num_auto_resize_panels = 0;
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BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
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{
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if (panelp->mAutoResize)
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{
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total_resizable_dim += llmax(0, panelp->getLayoutDim() - panelp->getRelevantMinDim());
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num_auto_resize_panels++;
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}
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}
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F32 total_fractional_size = 0.f;
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BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
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{
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if (panelp->mAutoResize)
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{
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F32 panel_resizable_dim = llmax(0.f, (F32)(panelp->getLayoutDim() - panelp->getRelevantMinDim()));
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panelp->mFractionalSize = llmin(MAX_FRACTIONAL_VALUE, (panel_resizable_dim == 0.f)
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? (1.f - MAX_FRACTIONAL_VALUE)
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: panel_resizable_dim / total_resizable_dim);
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total_fractional_size += panelp->mFractionalSize;
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// check for NaNs
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llassert(panelp->mFractionalSize == panelp->mFractionalSize);
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}
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}
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|
|
if (total_fractional_size == 0.f)
|
|
{ // equal distribution
|
|
BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
|
|
{
|
|
if (panelp->mAutoResize)
|
|
{
|
|
panelp->mFractionalSize = 1.f / (F32)num_auto_resize_panels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{ // renormalize
|
|
BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
|
|
{
|
|
if (panelp->mAutoResize)
|
|
{
|
|
panelp->mFractionalSize /= total_fractional_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool LLLayoutStack::animatePanels()
|
|
{
|
|
bool animation_in_progress = false;
|
|
|
|
//
|
|
// animate visibility
|
|
//
|
|
BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
|
|
{
|
|
if (panelp->getVisible())
|
|
{
|
|
if (mAnimate && panelp->mVisibleAmt < 1.f)
|
|
{
|
|
if (!mAnimatedThisFrame)
|
|
{
|
|
panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 1.f, LLCriticalDamp::getInterpolant(mOpenTimeConstant));
|
|
if (panelp->mVisibleAmt > 0.99f)
|
|
{
|
|
panelp->mVisibleAmt = 1.f;
|
|
}
|
|
}
|
|
|
|
animation_in_progress = true;
|
|
}
|
|
else
|
|
{
|
|
if (panelp->mVisibleAmt != 1.f)
|
|
{
|
|
panelp->mVisibleAmt = 1.f;
|
|
animation_in_progress = true;
|
|
}
|
|
}
|
|
}
|
|
else // not visible
|
|
{
|
|
if (mAnimate && panelp->mVisibleAmt > 0.f)
|
|
{
|
|
if (!mAnimatedThisFrame)
|
|
{
|
|
panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 0.f, LLCriticalDamp::getInterpolant(mCloseTimeConstant));
|
|
if (panelp->mVisibleAmt < 0.001f)
|
|
{
|
|
panelp->mVisibleAmt = 0.f;
|
|
}
|
|
}
|
|
|
|
animation_in_progress = true;
|
|
}
|
|
else
|
|
{
|
|
if (panelp->mVisibleAmt != 0.f)
|
|
{
|
|
panelp->mVisibleAmt = 0.f;
|
|
animation_in_progress = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
F32 collapse_state = panelp->mCollapsed ? 1.f : 0.f;
|
|
if (panelp->mCollapseAmt != collapse_state)
|
|
{
|
|
if (!mAnimatedThisFrame)
|
|
{
|
|
panelp->mCollapseAmt = lerp(panelp->mCollapseAmt, collapse_state, LLCriticalDamp::getInterpolant(mCloseTimeConstant));
|
|
}
|
|
animation_in_progress = true;
|
|
|
|
if (llabs(panelp->mCollapseAmt - collapse_state) < 0.001f)
|
|
{
|
|
panelp->mCollapseAmt = collapse_state;
|
|
}
|
|
}
|
|
}
|
|
|
|
mAnimatedThisFrame = true;
|
|
|
|
return animation_in_progress;
|
|
}
|
|
|
|
void LLLayoutStack::updatePanelRect( LLLayoutPanel* resized_panel, const LLRect& new_rect )
|
|
{
|
|
S32 new_dim = (mOrientation == HORIZONTAL)
|
|
? new_rect.getWidth()
|
|
: new_rect.getHeight();
|
|
S32 delta_dim = new_dim - resized_panel->getVisibleDim();
|
|
if (delta_dim == 0) return;
|
|
|
|
F32 total_visible_fraction = 0.f;
|
|
F32 delta_auto_resize_headroom = 0.f;
|
|
F32 total_auto_resize_headroom = 0.f;
|
|
|
|
LLLayoutPanel* other_resize_panel = NULL;
|
|
LLLayoutPanel* following_panel = NULL;
|
|
|
|
BOOST_REVERSE_FOREACH(LLLayoutPanel* panelp, mPanels)
|
|
{
|
|
if (panelp->mAutoResize)
|
|
{
|
|
total_auto_resize_headroom += (F32)(panelp->mTargetDim - panelp->getRelevantMinDim());
|
|
total_visible_fraction += panelp->mFractionalSize * panelp->getAutoResizeFactor();
|
|
}
|
|
|
|
if (panelp == resized_panel)
|
|
{
|
|
other_resize_panel = following_panel;
|
|
}
|
|
|
|
if (panelp->getVisible() && !panelp->mCollapsed)
|
|
{
|
|
following_panel = panelp;
|
|
}
|
|
}
|
|
|
|
if (resized_panel->mAutoResize == FALSE)
|
|
{
|
|
delta_auto_resize_headroom += -delta_dim;
|
|
}
|
|
if (other_resize_panel && other_resize_panel->mAutoResize == FALSE)
|
|
{
|
|
delta_auto_resize_headroom += delta_dim;
|
|
}
|
|
|
|
|
|
//delta_auto_resize_headroom = (total_visible_fraction > 0.f)
|
|
// ? delta_auto_resize_headroom / total_visible_fraction
|
|
// : 0.f;
|
|
|
|
F32 fraction_given_up = 0.f;
|
|
F32 fraction_remaining = 1.f;
|
|
F32 updated_auto_resize_headroom = total_auto_resize_headroom + delta_auto_resize_headroom;
|
|
|
|
enum
|
|
{
|
|
BEFORE_RESIZED_PANEL,
|
|
RESIZED_PANEL,
|
|
NEXT_PANEL,
|
|
AFTER_RESIZED_PANEL
|
|
} which_panel = BEFORE_RESIZED_PANEL;
|
|
|
|
BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
|
|
{
|
|
if (!panelp->getVisible() || panelp->mCollapsed) continue;
|
|
|
|
if (panelp == resized_panel)
|
|
{
|
|
which_panel = RESIZED_PANEL;
|
|
}
|
|
|
|
switch(which_panel)
|
|
{
|
|
case BEFORE_RESIZED_PANEL:
|
|
if (panelp->mAutoResize)
|
|
{ // freeze current size as fraction of overall auto_resize space
|
|
F32 fractional_adjustment_factor = total_auto_resize_headroom / updated_auto_resize_headroom;
|
|
F32 new_fractional_size = llclamp(panelp->mFractionalSize * fractional_adjustment_factor,
|
|
0.f,
|
|
MAX_FRACTIONAL_VALUE);
|
|
F32 fraction_delta = (new_fractional_size - panelp->mFractionalSize);
|
|
fraction_given_up -= fraction_delta;
|
|
fraction_remaining -= panelp->mFractionalSize;
|
|
panelp->mFractionalSize += fraction_delta;
|
|
llassert(!llisnan(panelp->mFractionalSize));
|
|
}
|
|
else
|
|
{
|
|
// leave non auto-resize panels alone
|
|
}
|
|
break;
|
|
case RESIZED_PANEL:
|
|
if (panelp->mAutoResize)
|
|
{ // freeze new size as fraction
|
|
F32 new_fractional_size = (updated_auto_resize_headroom == 0.f)
|
|
? 1.f
|
|
: llmin(MAX_FRACTIONAL_VALUE, ((F32)(new_dim - panelp->getRelevantMinDim()) / updated_auto_resize_headroom));
|
|
fraction_given_up -= new_fractional_size - panelp->mFractionalSize;
|
|
fraction_remaining -= panelp->mFractionalSize;
|
|
panelp->mFractionalSize = new_fractional_size;
|
|
llassert(!llisnan(panelp->mFractionalSize));
|
|
}
|
|
else
|
|
{ // freeze new size as original size
|
|
panelp->mTargetDim = new_dim;
|
|
fraction_remaining -= fraction_given_up;
|
|
}
|
|
which_panel = NEXT_PANEL;
|
|
break;
|
|
case NEXT_PANEL:
|
|
if (panelp->mAutoResize)
|
|
{
|
|
F32 new_fractional_size = (F32)(panelp->mTargetDim - panelp->getRelevantMinDim() + delta_auto_resize_headroom)
|
|
/ updated_auto_resize_headroom;
|
|
fraction_given_up -= new_fractional_size - panelp->mFractionalSize;
|
|
fraction_remaining -= panelp->mFractionalSize;
|
|
panelp->mFractionalSize = new_fractional_size;
|
|
}
|
|
else
|
|
{
|
|
panelp->mTargetDim -= delta_dim;
|
|
}
|
|
which_panel = AFTER_RESIZED_PANEL;
|
|
break;
|
|
case AFTER_RESIZED_PANEL:
|
|
if (panelp->mAutoResize)
|
|
{
|
|
panelp->mFractionalSize += (panelp->mFractionalSize / fraction_remaining) * fraction_given_up;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void LLLayoutStack::reshape(S32 width, S32 height, BOOL called_from_parent)
|
|
{
|
|
mNeedsLayout = true;
|
|
LLView::reshape(width, height, called_from_parent);
|
|
}
|
|
|
|
void LLLayoutStack::updateResizeBarLimits()
|
|
{
|
|
LLLayoutPanel* previous_visible_panelp = NULL;
|
|
BOOST_REVERSE_FOREACH(LLLayoutPanel* visible_panelp, mPanels)
|
|
{
|
|
if (!visible_panelp->getVisible() || visible_panelp->mCollapsed)
|
|
{
|
|
visible_panelp->mResizeBar->setVisible(FALSE);
|
|
continue;
|
|
}
|
|
|
|
// toggle resize bars based on panel visibility, resizability, etc
|
|
if (visible_panelp->mUserResize
|
|
&& previous_visible_panelp
|
|
&& previous_visible_panelp->mUserResize)
|
|
{
|
|
visible_panelp->mResizeBar->setVisible(TRUE);
|
|
visible_panelp->mResizeBar->setResizeLimits(visible_panelp->getRelevantMinDim(),
|
|
visible_panelp->getVisibleDim()
|
|
+ (previous_visible_panelp->getVisibleDim()
|
|
- previous_visible_panelp->getRelevantMinDim()));
|
|
}
|
|
else
|
|
{
|
|
visible_panelp->mResizeBar->setVisible(FALSE);
|
|
}
|
|
|
|
previous_visible_panelp = visible_panelp;
|
|
}
|
|
}
|