diff options
Diffstat (limited to 'indra/llui/lllayoutstack.cpp')
| -rw-r--r-- | indra/llui/lllayoutstack.cpp | 784 |
1 files changed, 463 insertions, 321 deletions
diff --git a/indra/llui/lllayoutstack.cpp b/indra/llui/lllayoutstack.cpp index 0e7060e22c..b67030dc34 100644 --- a/indra/llui/lllayoutstack.cpp +++ b/indra/llui/lllayoutstack.cpp @@ -34,10 +34,13 @@ #include "llpanel.h" #include "llresizebar.h" #include "llcriticaldamp.h" +#include "boost/foreach.hpp" static LLDefaultChildRegistry::Register<LLLayoutStack> register_layout_stack("layout_stack"); static LLLayoutStack::LayoutStackRegistry::Register<LLLayoutPanel> register_layout_panel("layout_panel"); +static const F32 MAX_FRACTIONAL_VALUE = 0.99999f; + void LLLayoutStack::OrientationNames::declareValues() { declare("horizontal", HORIZONTAL); @@ -49,15 +52,12 @@ void LLLayoutStack::OrientationNames::declareValues() // LLLayoutPanel::Params::Params() : expanded_min_dim("expanded_min_dim", 0), - min_dim("min_dim", 0), - max_dim("max_dim", S32_MAX), - user_resize("user_resize", true), + min_dim("min_dim", -1), + user_resize("user_resize", false), auto_resize("auto_resize", true) { addSynonym(min_dim, "min_width"); addSynonym(min_dim, "min_height"); - addSynonym(max_dim, "max_width"); - addSynonym(max_dim, "max_height"); } LLLayoutPanel::LLLayoutPanel(const Params& p) @@ -65,7 +65,6 @@ LLLayoutPanel::LLLayoutPanel(const Params& p) mExpandedMinDimSpecified(false), mExpandedMinDim(p.min_dim), mMinDim(p.min_dim), - mMaxDim(p.max_dim), mAutoResize(p.auto_resize), mUserResize(p.user_resize), mCollapsed(FALSE), @@ -73,6 +72,8 @@ LLLayoutPanel::LLLayoutPanel(const Params& p) mVisibleAmt(1.f), // default to fully visible mResizeBar(NULL), mFractionalSize(0.f), + mTargetDim(0), + mIgnoreReshape(false), mOrientation(LLLayoutStack::HORIZONTAL) { // Set the expanded min dim if it is provided, otherwise it gets the p.min_dim value @@ -103,33 +104,85 @@ LLLayoutPanel::~LLLayoutPanel() mResizeBar = NULL; } -void LLLayoutPanel::reshape(S32 width, S32 height, BOOL called_from_parent) +F32 LLLayoutPanel::getAutoResizeFactor() const +{ + return mVisibleAmt * (1.f - mCollapseAmt); +} + +F32 LLLayoutPanel::getVisibleAmount() const +{ + return mVisibleAmt; +} + +S32 LLLayoutPanel::getLayoutDim() const +{ + return llround((mOrientation == LLLayoutStack::HORIZONTAL) + ? getRect().getWidth() + : getRect().getHeight()); +} + +S32 LLLayoutPanel::getVisibleDim() const +{ + F32 min_dim = getRelevantMinDim(); + return llround(mVisibleAmt + * (min_dim + + (((F32)mTargetDim - min_dim) * (1.f - mCollapseAmt)))); +} + +void LLLayoutPanel::setOrientation( LLLayoutStack::ELayoutOrientation orientation ) { - if (mOrientation == LLLayoutStack::HORIZONTAL) + mOrientation = orientation; + S32 layout_dim = llround((mOrientation == LLLayoutStack::HORIZONTAL) + ? getRect().getWidth() + : getRect().getHeight()); + + if (mMinDim == -1) { - mFractionalSize += width - llround(mFractionalSize); + if (!mAutoResize) + { + setMinDim(layout_dim); + } + else + { + setMinDim(0); + } } - else + + mTargetDim = llmax(layout_dim, getMinDim()); +} + +void LLLayoutPanel::setVisible( BOOL visible ) +{ + if (visible != getVisible()) { - mFractionalSize += height - llround(mFractionalSize); + LLLayoutStack* stackp = dynamic_cast<LLLayoutStack*>(getParent()); + stackp->mNeedsLayout = true; } - LLPanel::reshape(width, height, called_from_parent); + LLPanel::setVisible(visible); } -F32 LLLayoutPanel::getCollapseFactor() +void LLLayoutPanel::reshape( S32 width, S32 height, BOOL called_from_parent /*= TRUE*/ ) { - if (mOrientation == LLLayoutStack::HORIZONTAL) + if (!mIgnoreReshape && !mAutoResize) { - F32 collapse_amt = - clamp_rescale(mCollapseAmt, 0.f, 1.f, 1.f, (F32)getRelevantMinDim() / (F32)llmax(1, getRect().getWidth())); - return mVisibleAmt * collapse_amt; + mTargetDim = (mOrientation == LLLayoutStack::HORIZONTAL) ? width : height; } - else + LLPanel::reshape(width, height, called_from_parent); +} + +void LLLayoutPanel::handleReshape(const LLRect& new_rect, bool by_user) +{ + LLLayoutStack* stackp = dynamic_cast<LLLayoutStack*>(getParent()); + if (stackp) { - F32 collapse_amt = - clamp_rescale(mCollapseAmt, 0.f, 1.f, 1.f, llmin(1.f, (F32)getRelevantMinDim() / (F32)llmax(1, getRect().getHeight()))); - return mVisibleAmt * collapse_amt; + stackp->mNeedsLayout = true; + if (by_user) + { + // tell layout stack to account for new shape + stackp->updatePanelRect(this, new_rect); + } } + LLPanel::handleReshape(new_rect, by_user); } // @@ -147,12 +200,11 @@ LLLayoutStack::Params::Params() LLLayoutStack::LLLayoutStack(const LLLayoutStack::Params& p) : LLView(p), - mMinWidth(0), - mMinHeight(0), mPanelSpacing(p.border_size), mOrientation(p.orientation), mAnimate(p.animate), mAnimatedThisFrame(false), + mNeedsLayout(true), mClip(p.clip), mOpenTimeConstant(p.open_time_constant), mCloseTimeConstant(p.close_time_constant) @@ -169,26 +221,26 @@ void LLLayoutStack::draw() { updateLayout(); - e_panel_list_t::iterator panel_it; - for (panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) + // always clip to stack itself + LLLocalClipRect clip(getLocalRect()); + BOOST_FOREACH(LLLayoutPanel* panelp, mPanels) { // clip to layout rectangle, not bounding rectangle - LLRect clip_rect = (*panel_it)->getRect(); + LLRect clip_rect = panelp->getRect(); // scale clipping rectangle by visible amount if (mOrientation == HORIZONTAL) { - clip_rect.mRight = clip_rect.mLeft + llround((F32)clip_rect.getWidth() * (*panel_it)->getCollapseFactor()); + clip_rect.mRight = clip_rect.mLeft + panelp->getVisibleDim(); } else { - clip_rect.mBottom = clip_rect.mTop - llround((F32)clip_rect.getHeight() * (*panel_it)->getCollapseFactor()); + clip_rect.mBottom = clip_rect.mTop - panelp->getVisibleDim(); } - LLPanel* panelp = (*panel_it); - - LLLocalClipRect clip(clip_rect, mClip); - // only force drawing invisible children if visible amount is non-zero - drawChild(panelp, 0, 0, !clip_rect.isEmpty()); + {LLLocalClipRect clip(clip_rect, mClip); + // only force drawing invisible children if visible amount is non-zero + drawChild(panelp, 0, 0, !clip_rect.isEmpty()); + } } mAnimatedThisFrame = false; } @@ -201,12 +253,10 @@ void LLLayoutStack::removeChild(LLView* view) { mPanels.erase(std::find(mPanels.begin(), mPanels.end(), embedded_panelp)); delete embedded_panelp; + updateFractionalSizes(); + mNeedsLayout = true; } - // need to update resizebars - - calcMinExtents(); - LLView::removeChild(view); } @@ -221,29 +271,15 @@ bool LLLayoutStack::addChild(LLView* child, S32 tab_group) LLLayoutPanel* panelp = dynamic_cast<LLLayoutPanel*>(child); if (panelp) { - panelp->mFractionalSize = (mOrientation == HORIZONTAL) - ? panelp->getRect().getWidth() - : panelp->getRect().getHeight(); panelp->setOrientation(mOrientation); mPanels.push_back(panelp); + createResizeBar(panelp); + mNeedsLayout = true; } - return LLView::addChild(child, tab_group); -} - -void LLLayoutStack::movePanel(LLPanel* panel_to_move, LLPanel* target_panel, bool move_to_front) -{ - LLLayoutPanel* embedded_panel_to_move = findEmbeddedPanel(panel_to_move); - LLLayoutPanel* embedded_target_panel = move_to_front ? *mPanels.begin() : findEmbeddedPanel(target_panel); + BOOL result = LLView::addChild(child, tab_group); - if (!embedded_panel_to_move || !embedded_target_panel || embedded_panel_to_move == embedded_target_panel) - { - llwarns << "One of the panels was not found in stack or NULL was passed instead of valid panel" << llendl; - return; - } - e_panel_list_t::iterator it = std::find(mPanels.begin(), mPanels.end(), embedded_panel_to_move); - mPanels.erase(it); - it = move_to_front ? mPanels.begin() : std::find(mPanels.begin(), mPanels.end(), embedded_target_panel); - mPanels.insert(it, embedded_panel_to_move); + updateFractionalSizes(); + return result; } void LLLayoutStack::addPanel(LLLayoutPanel* panel, EAnimate animate) @@ -258,23 +294,19 @@ void LLLayoutStack::addPanel(LLLayoutPanel* panel, EAnimate animate) } } -void LLLayoutStack::removePanel(LLPanel* panel) -{ - removeChild(panel); -} - void LLLayoutStack::collapsePanel(LLPanel* panel, BOOL collapsed) { LLLayoutPanel* panel_container = findEmbeddedPanel(panel); if (!panel_container) return; panel_container->mCollapsed = collapsed; + mNeedsLayout = true; } void LLLayoutStack::updatePanelAutoResize(const std::string& panel_name, BOOL auto_resize) { LLLayoutPanel* panel = findEmbeddedPanelByName(panel_name); - + if (panel) { panel->mAutoResize = auto_resize; @@ -291,51 +323,246 @@ void LLLayoutStack::setPanelUserResize(const std::string& panel_name, BOOL user_ } } -bool LLLayoutStack::getPanelMinSize(const std::string& panel_name, S32* min_dimp) + +static LLFastTimer::DeclareTimer FTM_UPDATE_LAYOUT("Update LayoutStacks"); + +void LLLayoutStack::updateLayout() +{ + LLFastTimer ft(FTM_UPDATE_LAYOUT); + + if (!mNeedsLayout) return; + + bool animation_in_progress = animatePanels(); + F32 total_visible_fraction = 0.f; + S32 space_to_distribute = (mOrientation == HORIZONTAL) + ? getRect().getWidth() + : getRect().getHeight(); + + // first, assign minimum dimensions + LLLayoutPanel* panelp = NULL; + BOOST_FOREACH(panelp, mPanels) + { + if (panelp->mAutoResize) + { + panelp->mTargetDim = panelp->getRelevantMinDim(); + } + space_to_distribute -= panelp->getVisibleDim() + llround((F32)mPanelSpacing * panelp->getVisibleAmount()); + total_visible_fraction += panelp->mFractionalSize * panelp->getAutoResizeFactor(); + } + + llassert(total_visible_fraction < 1.01f); + + // don't need spacing after last panel + space_to_distribute += panelp ? llround((F32)mPanelSpacing * panelp->getVisibleAmount()) : 0; + + // scale up space to distribute, since some of might will go to an invisible fraction of the auto-resize space + space_to_distribute = (total_visible_fraction > 0.f) + ? llround((F32)space_to_distribute / total_visible_fraction) + : space_to_distribute; + + if (space_to_distribute > 0) + { // give space proportionally to auto resize panels, even invisible ones + BOOST_FOREACH(LLLayoutPanel* panelp, mPanels) + { + if (panelp->mAutoResize == TRUE) + { + S32 delta = llround((F32)space_to_distribute * panelp->mFractionalSize/* * panelp->getAutoResizeFactor()*/); + panelp->mTargetDim += delta; + } + } + } + + F32 cur_pos = (mOrientation == HORIZONTAL) ? 0.f : (F32)getRect().getHeight(); + + BOOST_FOREACH(LLLayoutPanel* panelp, mPanels) + { + F32 panel_dim = panelp->mTargetDim; + F32 panel_visible_dim = panelp->getVisibleDim(); + + LLRect panel_rect; + if (mOrientation == HORIZONTAL) + { + panel_rect.setLeftTopAndSize(llround(cur_pos), + getRect().getHeight(), + llround(panel_dim), + getRect().getHeight()); + } + else + { + panel_rect.setLeftTopAndSize(0, + llround(cur_pos), + getRect().getWidth(), + llround(panel_dim)); + } + panelp->setIgnoreReshape(true); + panelp->setShape(panel_rect); + panelp->setIgnoreReshape(false); + + static LLUICachedControl<S32> resize_bar_overlap ("UIResizeBarOverlap", 0); + LLRect resize_bar_rect(panel_rect); + + F32 panel_spacing = (F32)mPanelSpacing * panelp->getVisibleAmount(); + if (mOrientation == HORIZONTAL) + { + resize_bar_rect.mLeft = panel_rect.mRight - resize_bar_overlap; + resize_bar_rect.mRight = panel_rect.mRight + panel_spacing + resize_bar_overlap; + + cur_pos += panel_visible_dim + panel_spacing; + } + else //VERTICAL + { + resize_bar_rect.mTop = panel_rect.mBottom + resize_bar_overlap; + resize_bar_rect.mBottom = panel_rect.mBottom - panel_spacing - resize_bar_overlap; + + cur_pos -= panel_visible_dim + panel_spacing; + } + panelp->mResizeBar->setShape(resize_bar_rect); + } + + updateResizeBarLimits(); + + // clear animation flag at end, since panel resizes will set it + // and leave it set if there is any animation in progress + mNeedsLayout = animation_in_progress; +} // end LLLayoutStack::updateLayout + +LLLayoutPanel* LLLayoutStack::findEmbeddedPanel(LLPanel* panelp) const +{ + if (!panelp) return NULL; + + e_panel_list_t::const_iterator panel_it; + BOOST_FOREACH(LLLayoutPanel* p, mPanels) + { + if (p == panelp) + { + return p; + } + } + return NULL; +} + +LLLayoutPanel* LLLayoutStack::findEmbeddedPanelByName(const std::string& name) const { - LLLayoutPanel* panel = findEmbeddedPanelByName(panel_name); + LLLayoutPanel* result = NULL; - if (panel && min_dimp) + BOOST_FOREACH(LLLayoutPanel* p, mPanels) { - *min_dimp = panel->getRelevantMinDim(); + if (p->getName() == name) + { + result = p; + break; + } } - return NULL != panel; + return result; } -bool LLLayoutStack::getPanelMaxSize(const std::string& panel_name, S32* max_dimp) +void LLLayoutStack::createResizeBar(LLLayoutPanel* panelp) { - LLLayoutPanel* panel = findEmbeddedPanelByName(panel_name); + BOOST_FOREACH(LLLayoutPanel* lp, mPanels) + { + if (lp->mResizeBar == NULL) + { + LLResizeBar::Side side = (mOrientation == HORIZONTAL) ? LLResizeBar::RIGHT : LLResizeBar::BOTTOM; + LLRect resize_bar_rect = getRect(); - if (panel) + LLResizeBar::Params resize_params; + resize_params.name("resize"); + resize_params.resizing_view(lp); + resize_params.min_size(lp->getRelevantMinDim()); + resize_params.side(side); + resize_params.snapping_enabled(false); + LLResizeBar* resize_bar = LLUICtrlFactory::create<LLResizeBar>(resize_params); + lp->mResizeBar = resize_bar; + LLView::addChild(resize_bar, 0); + } + } + // bring all resize bars to the front so that they are clickable even over the panels + // with a bit of overlap + for (e_panel_list_t::iterator panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) { - if (max_dimp) *max_dimp = panel->mMaxDim; + LLResizeBar* resize_barp = (*panel_it)->mResizeBar; + sendChildToFront(resize_barp); } +} - return NULL != panel; +// update layout stack animations, etc. once per frame +// NOTE: we use this to size world view based on animating UI, *before* we draw the UI +// we might still need to call updateLayout during UI draw phase, in case UI elements +// are resizing themselves dynamically +//static +void LLLayoutStack::updateClass() +{ + for (instance_iter it = beginInstances(); it != endInstances(); ++it) + { + it->updateLayout(); + } } -static LLFastTimer::DeclareTimer FTM_UPDATE_LAYOUT("Update LayoutStacks"); -void LLLayoutStack::updateLayout(BOOL force_resize) +void LLLayoutStack::updateFractionalSizes() { - LLFastTimer ft(FTM_UPDATE_LAYOUT); - static LLUICachedControl<S32> resize_bar_overlap ("UIResizeBarOverlap", 0); - calcMinExtents(); - createResizeBars(); + F32 total_resizable_dim = 0; + S32 num_auto_resize_panels = 0; + + BOOST_FOREACH(LLLayoutPanel* panelp, mPanels) + { + if (panelp->mAutoResize) + { + total_resizable_dim += llmax(0, panelp->getLayoutDim() - panelp->getRelevantMinDim()); + num_auto_resize_panels++; + } + } - // calculate current extents - F32 total_size = 0.f; + F32 total_fractional_size = 0.f; + + BOOST_FOREACH(LLLayoutPanel* panelp, mPanels) + { + if (panelp->mAutoResize) + { + F32 panel_resizable_dim = llmax(0.f, (F32)(panelp->getLayoutDim() - panelp->getRelevantMinDim())); + panelp->mFractionalSize = llmin(MAX_FRACTIONAL_VALUE, (panel_resizable_dim == 0.f) + ? (1.f - MAX_FRACTIONAL_VALUE) + : panel_resizable_dim / total_resizable_dim); + total_fractional_size += panelp->mFractionalSize; + // check for NaNs + llassert(panelp->mFractionalSize == panelp->mFractionalSize); + } + } + 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 // - e_panel_list_t::iterator panel_it; - for (panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) + BOOST_FOREACH(LLLayoutPanel* panelp, mPanels) { - LLLayoutPanel* panelp = (*panel_it); - if (panelp->getVisible()) + if (panelp->getVisible()) { - if (mAnimate) + if (mAnimate && panelp->mVisibleAmt < 1.f) { if (!mAnimatedThisFrame) { @@ -345,15 +572,21 @@ void LLLayoutStack::updateLayout(BOOL force_resize) panelp->mVisibleAmt = 1.f; } } + + animation_in_progress = true; } else { - panelp->mVisibleAmt = 1.f; + if (panelp->mVisibleAmt != 1.f) + { + panelp->mVisibleAmt = 1.f; + animation_in_progress = true; + } } } else // not visible { - if (mAnimate) + if (mAnimate && panelp->mVisibleAmt > 0.f) { if (!mAnimatedThisFrame) { @@ -363,297 +596,206 @@ void LLLayoutStack::updateLayout(BOOL force_resize) panelp->mVisibleAmt = 0.f; } } + + animation_in_progress = true; } else { - panelp->mVisibleAmt = 0.f; + if (panelp->mVisibleAmt != 0.f) + { + panelp->mVisibleAmt = 0.f; + animation_in_progress = true; + } } } F32 collapse_state = panelp->mCollapsed ? 1.f : 0.f; - panelp->mCollapseAmt = lerp(panelp->mCollapseAmt, collapse_state, LLCriticalDamp::getInterpolant(mCloseTimeConstant)); - - total_size += panelp->mFractionalSize * panelp->getCollapseFactor(); - // want n-1 panel gaps for n panels - if (panel_it != mPanels.begin()) - { - total_size += mPanelSpacing; - } - } - - S32 num_resizable_panels = 0; - F32 shrink_headroom_available = 0.f; - F32 shrink_headroom_total = 0.f; - for (panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) - { - LLLayoutPanel* panelp = (*panel_it); - - // panels that are not fully visible do not count towards shrink headroom - if (panelp->getCollapseFactor() < 1.f) - { - continue; - } - - F32 cur_size = panelp->mFractionalSize; - F32 min_size = (F32)panelp->getRelevantMinDim(); - - // if currently resizing a panel or the panel is flagged as not automatically resizing - // only track total available headroom, but don't use it for automatic resize logic - if (panelp->mResizeBar->hasMouseCapture() - || (!panelp->mAutoResize - && !force_resize)) - { - shrink_headroom_total += cur_size - min_size; - } - else - { - num_resizable_panels++; - - shrink_headroom_available += cur_size - min_size; - shrink_headroom_total += cur_size - min_size; - } - } - - // calculate how many pixels need to be distributed among layout panels - // positive means panels need to grow, negative means shrink - F32 pixels_to_distribute = (mOrientation == HORIZONTAL) - ? getRect().getWidth() - total_size - : getRect().getHeight() - total_size; - - // now we distribute the pixels... - F32 cur_x = 0.f; - F32 cur_y = (F32)getRect().getHeight(); - - for (panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) - { - LLLayoutPanel* panelp = (*panel_it); - - F32 min_size = panelp->getRelevantMinDim(); - F32 delta_size = 0.f; - - // if panel can automatically resize (not animating, and resize flag set)... - if (panelp->getCollapseFactor() == 1.f - && (force_resize || panelp->mAutoResize) - && !panelp->mResizeBar->hasMouseCapture()) + if (panelp->mCollapseAmt != collapse_state) { - if (pixels_to_distribute < 0.f) + if (!mAnimatedThisFrame) { - // shrink proportionally to amount over minimum - // so we can do this in one pass - delta_size = (shrink_headroom_available > 0.f) - ? pixels_to_distribute * ((F32)(panelp->mFractionalSize - min_size) / shrink_headroom_available) - : 0.f; - shrink_headroom_available -= (panelp->mFractionalSize - min_size); + panelp->mCollapseAmt = lerp(panelp->mCollapseAmt, collapse_state, LLCriticalDamp::getInterpolant(mCloseTimeConstant)); } - else + animation_in_progress = true; + + if (llabs(panelp->mCollapseAmt - collapse_state) < 0.001f) { - // grow all elements equally - delta_size = pixels_to_distribute / (F32)num_resizable_panels; - num_resizable_panels--; + panelp->mCollapseAmt = collapse_state; } - - panelp->mFractionalSize = llmax(min_size, panelp->mFractionalSize + delta_size); - pixels_to_distribute -= delta_size; } + } - // adjust running headroom count based on new sizes - shrink_headroom_total += delta_size; + mAnimatedThisFrame = true; - LLRect panel_rect; - if (mOrientation == HORIZONTAL) - { - panel_rect.setLeftTopAndSize(llround(cur_x), - llround(cur_y), - llround(panelp->mFractionalSize), - getRect().getHeight()); - } - else - { - panel_rect.setLeftTopAndSize(llround(cur_x), - llround(cur_y), - getRect().getWidth(), - llround(panelp->mFractionalSize)); - } - panelp->setShape(panel_rect); + return animation_in_progress; +} - LLRect resize_bar_rect = panel_rect; - if (mOrientation == HORIZONTAL) - { - resize_bar_rect.mLeft = panel_rect.mRight - resize_bar_overlap; - resize_bar_rect.mRight = panel_rect.mRight + mPanelSpacing + resize_bar_overlap; - } - else - { - resize_bar_rect.mTop = panel_rect.mBottom + resize_bar_overlap; - resize_bar_rect.mBottom = panel_rect.mBottom - mPanelSpacing - resize_bar_overlap; - } - (*panel_it)->mResizeBar->setRect(resize_bar_rect); +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 size = ((*panel_it)->mFractionalSize * (*panel_it)->getCollapseFactor()) + (F32)mPanelSpacing; - if (mOrientation == HORIZONTAL) - { - cur_x += size; - } - else //VERTICAL - { - cur_y -= size; - } - } + F32 total_visible_fraction = 0.f; + F32 delta_auto_resize_headroom = 0.f; + F32 total_auto_resize_headroom = 0.f; - // update resize bars with new limits - LLLayoutPanel* last_resizeable_panel = NULL; - for (panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) - { - LLLayoutPanel* panelp = (*panel_it); - S32 relevant_min = panelp->getRelevantMinDim(); + LLLayoutPanel* other_resize_panel = NULL; + LLLayoutPanel* following_panel = NULL; - if (mOrientation == HORIZONTAL) + BOOST_REVERSE_FOREACH(LLLayoutPanel* panelp, mPanels) + { + if (panelp->mAutoResize) { - (*panel_it)->mResizeBar->setResizeLimits( - relevant_min, - relevant_min + llround(shrink_headroom_total)); + total_auto_resize_headroom += (F32)(panelp->mTargetDim - panelp->getRelevantMinDim()); + total_visible_fraction += panelp->mFractionalSize * panelp->getAutoResizeFactor(); } - else //VERTICAL + + if (panelp == resized_panel) { - (*panel_it)->mResizeBar->setResizeLimits( - relevant_min, - relevant_min + llround(shrink_headroom_total)); + other_resize_panel = following_panel; } - // toggle resize bars based on panel visibility, resizability, etc - BOOL resize_bar_enabled = panelp->getVisible() && (*panel_it)->mUserResize; - (*panel_it)->mResizeBar->setVisible(resize_bar_enabled); - - if ((*panel_it)->mUserResize || (*panel_it)->mAutoResize) + if (panelp->getVisible() && !panelp->mCollapsed) { - last_resizeable_panel = (*panel_it); + following_panel = panelp; } } - // hide last resize bar as there is nothing past it - // resize bars need to be in between two resizable panels - if (last_resizeable_panel) + if (resized_panel->mAutoResize == FALSE) { - last_resizeable_panel->mResizeBar->setVisible(FALSE); + delta_auto_resize_headroom += -delta_dim; } - - // not enough room to fit existing contents - if (force_resize == FALSE - // layout did not complete by reaching target position - && ((mOrientation == VERTICAL && llround(cur_y) != -mPanelSpacing) - || (mOrientation == HORIZONTAL && llround(cur_x) != getRect().getWidth() + mPanelSpacing))) + if (other_resize_panel && other_resize_panel->mAutoResize == FALSE) { - // do another layout pass with all stacked elements contributing - // even those that don't usually resize - llassert_always(force_resize == FALSE); - updateLayout(TRUE); + delta_auto_resize_headroom += delta_dim; } - mAnimatedThisFrame = true; -} // end LLLayoutStack::updateLayout + //delta_auto_resize_headroom = (total_visible_fraction > 0.f) + // ? delta_auto_resize_headroom / total_visible_fraction + // : 0.f; -LLLayoutPanel* LLLayoutStack::findEmbeddedPanel(LLPanel* panelp) const -{ - if (!panelp) return NULL; + F32 fraction_given_up = 0.f; + F32 fraction_remaining = 1.f; + F32 updated_auto_resize_headroom = total_auto_resize_headroom + delta_auto_resize_headroom; - e_panel_list_t::const_iterator panel_it; - for (panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) + enum { - if ((*panel_it) == panelp) - { - return *panel_it; - } - } - return NULL; -} - -LLLayoutPanel* LLLayoutStack::findEmbeddedPanelByName(const std::string& name) const -{ - LLLayoutPanel* result = NULL; + BEFORE_RESIZED_PANEL, + RESIZED_PANEL, + NEXT_PANEL, + AFTER_RESIZED_PANEL + } which_panel = BEFORE_RESIZED_PANEL; - for (e_panel_list_t::const_iterator panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) + BOOST_FOREACH(LLLayoutPanel* panelp, mPanels) { - LLLayoutPanel* p = *panel_it; + if (!panelp->getVisible() || panelp->mCollapsed) continue; - if (p->getName() == name) + if (panelp == resized_panel) { - result = p; - break; + which_panel = RESIZED_PANEL; } - } - - return result; -} -// Compute sum of min_width or min_height of children -void LLLayoutStack::calcMinExtents() -{ - mMinWidth = 0; - mMinHeight = 0; - - e_panel_list_t::iterator panel_it; - for (panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) - { - if (mOrientation == HORIZONTAL) + switch(which_panel) { - mMinWidth += (*panel_it)->getRelevantMinDim(); - if (panel_it != mPanels.begin()) + 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 { - mMinWidth += mPanelSpacing; + // leave non auto-resize panels alone } - } - else //VERTICAL - { - mMinHeight += (*panel_it)->getRelevantMinDim(); - if (panel_it != mPanels.begin()) + 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) { - mMinHeight += mPanelSpacing; + panelp->mFractionalSize += (panelp->mFractionalSize / fraction_remaining) * fraction_given_up; } + default: + break; } } } -void LLLayoutStack::createResizeBars() +void LLLayoutStack::reshape(S32 width, S32 height, BOOL called_from_parent) { - for (e_panel_list_t::iterator panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) + mNeedsLayout = true; + LLView::reshape(width, height, called_from_parent); +} + +void LLLayoutStack::updateResizeBarLimits() +{ + LLLayoutPanel* previous_visible_panelp = NULL; + BOOST_REVERSE_FOREACH(LLLayoutPanel* visible_panelp, mPanels) { - LLLayoutPanel* lp = (*panel_it); - if (lp->mResizeBar == NULL) + if (!visible_panelp->getVisible() || visible_panelp->mCollapsed) { - LLResizeBar::Side side = (mOrientation == HORIZONTAL) ? LLResizeBar::RIGHT : LLResizeBar::BOTTOM; - LLRect resize_bar_rect = getRect(); - - LLResizeBar::Params resize_params; - resize_params.name("resize"); - resize_params.resizing_view(lp); - resize_params.min_size(lp->getRelevantMinDim()); - resize_params.side(side); - resize_params.snapping_enabled(false); - LLResizeBar* resize_bar = LLUICtrlFactory::create<LLResizeBar>(resize_params); - lp->mResizeBar = resize_bar; - LLView::addChild(resize_bar, 0); + visible_panelp->mResizeBar->setVisible(FALSE); + continue; + } - // bring all resize bars to the front so that they are clickable even over the panels - // with a bit of overlap - for (e_panel_list_t::iterator panel_it = mPanels.begin(); panel_it != mPanels.end(); ++panel_it) - { - LLResizeBar* resize_barp = (*panel_it)->mResizeBar; - sendChildToFront(resize_barp); - } + // 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); } - } -} -// update layout stack animations, etc. once per frame -// NOTE: we use this to size world view based on animating UI, *before* we draw the UI -// we might still need to call updateLayout during UI draw phase, in case UI elements -// are resizing themselves dynamically -//static -void LLLayoutStack::updateClass() -{ - for (instance_iter it = beginInstances(); it != endInstances(); ++it) - { - it->updateLayout(); + previous_visible_panelp = visible_panelp; } } |