diff options
Diffstat (limited to 'indra/llui/llscrollcontainer.cpp')
| -rw-r--r-- | indra/llui/llscrollcontainer.cpp | 434 |
1 files changed, 211 insertions, 223 deletions
diff --git a/indra/llui/llscrollcontainer.cpp b/indra/llui/llscrollcontainer.cpp index 2a2e56a92c..3146418a7d 100644 --- a/indra/llui/llscrollcontainer.cpp +++ b/indra/llui/llscrollcontainer.cpp @@ -2,31 +2,25 @@ * @file llscrollcontainer.cpp * @brief LLScrollContainer base class * - * $LicenseInfo:firstyear=2001&license=viewergpl$ - * - * Copyright (c) 2001-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -37,6 +31,7 @@ #include "llrender.h" #include "llcontainerview.h" +#include "lllocalcliprect.h" // #include "llfolderview.h" #include "llscrollingpanellist.h" #include "llscrollbar.h" @@ -55,19 +50,29 @@ static const S32 HORIZONTAL_MULTIPLE = 8; static const S32 VERTICAL_MULTIPLE = 16; -static const F32 MIN_AUTO_SCROLL_RATE = 120.f; -static const F32 MAX_AUTO_SCROLL_RATE = 500.f; static const F32 AUTO_SCROLL_RATE_ACCEL = 120.f; ///---------------------------------------------------------------------------- /// Class LLScrollContainer ///---------------------------------------------------------------------------- -static LLDefaultWidgetRegistry::Register<LLScrollContainer> r("scroll_container"); +static LLDefaultChildRegistry::Register<LLScrollContainer> r("scroll_container"); + +#include "llscrollingpanellist.h" +#include "llcontainerview.h" +#include "llpanel.h" + +static ScrollContainerRegistry::Register<LLScrollingPanelList> r1("scrolling_panel_list"); +static ScrollContainerRegistry::Register<LLContainerView> r2("container_view"); +static ScrollContainerRegistry::Register<LLPanel> r3("panel", &LLPanel::fromXML); LLScrollContainer::Params::Params() : is_opaque("opaque"), bg_color("color"), + border_visible("border_visible"), + hide_scrollbar("hide_scrollbar"), + min_auto_scroll_rate("min_auto_scroll_rate", 100), + max_auto_scroll_rate("max_auto_scroll_rate", 1000), reserve_scroll_corner("reserve_scroll_corner", false) { name = "scroll_container"; @@ -83,7 +88,10 @@ LLScrollContainer::LLScrollContainer(const LLScrollContainer::Params& p) mAutoScrollRate( 0.f ), mBackgroundColor(p.bg_color()), mIsOpaque(p.is_opaque), + mHideScrollbar(p.hide_scrollbar), mReserveScrollCorner(p.reserve_scroll_corner), + mMinAutoScrollRate(p.min_auto_scroll_rate), + mMaxAutoScrollRate(p.max_auto_scroll_rate), mScrolledView(NULL) { static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0); @@ -91,12 +99,13 @@ LLScrollContainer::LLScrollContainer(const LLScrollContainer::Params& p) LLViewBorder::Params params; params.name("scroll border"); params.rect(border_rect); - params.bevel_type(LLViewBorder::BEVEL_IN); + params.visible(p.border_visible); + params.bevel_style(LLViewBorder::BEVEL_IN); mBorder = LLUICtrlFactory::create<LLViewBorder> (params); LLView::addChild( mBorder ); mInnerRect.set( 0, getRect().getHeight(), getRect().getWidth(), 0 ); - mInnerRect.stretch( -mBorder->getBorderWidth() ); + mInnerRect.stretch( -getBorderWidth() ); LLRect vertical_scroll_rect = mInnerRect; vertical_scroll_rect.mLeft = vertical_scroll_rect.mRight - scrollbar_size; @@ -108,12 +117,11 @@ LLScrollContainer::LLScrollContainer(const LLScrollContainer::Params& p) sbparams.doc_pos(0); sbparams.page_size(mInnerRect.getHeight()); sbparams.step_size(VERTICAL_MULTIPLE); + sbparams.follows.flags(FOLLOWS_RIGHT | FOLLOWS_TOP | FOLLOWS_BOTTOM); + sbparams.visible(false); + sbparams.change_callback(p.scroll_callback); mScrollbar[VERTICAL] = LLUICtrlFactory::create<LLScrollbar> (sbparams); LLView::addChild( mScrollbar[VERTICAL] ); - mScrollbar[VERTICAL]->setVisible( FALSE ); - mScrollbar[VERTICAL]->setFollowsRight(); - mScrollbar[VERTICAL]->setFollowsTop(); - mScrollbar[VERTICAL]->setFollowsBottom(); LLRect horizontal_scroll_rect = mInnerRect; horizontal_scroll_rect.mTop = horizontal_scroll_rect.mBottom + scrollbar_size; @@ -124,11 +132,11 @@ LLScrollContainer::LLScrollContainer(const LLScrollContainer::Params& p) sbparams.doc_pos(0); sbparams.page_size(mInnerRect.getWidth()); sbparams.step_size(VERTICAL_MULTIPLE); + sbparams.visible(false); + sbparams.follows.flags(FOLLOWS_LEFT | FOLLOWS_RIGHT); + sbparams.change_callback(p.scroll_callback); mScrollbar[HORIZONTAL] = LLUICtrlFactory::create<LLScrollbar> (sbparams); LLView::addChild( mScrollbar[HORIZONTAL] ); - mScrollbar[HORIZONTAL]->setVisible( FALSE ); - mScrollbar[HORIZONTAL]->setFollowsLeft(); - mScrollbar[HORIZONTAL]->setFollowsRight(); } // Destroys the object @@ -174,8 +182,8 @@ void LLScrollContainer::reshape(S32 width, S32 height, { LLUICtrl::reshape( width, height, called_from_parent ); - mInnerRect.set( 0, getRect().getHeight(), getRect().getWidth(), 0 ); - mInnerRect.stretch( -mBorder->getBorderWidth() ); + mInnerRect = getLocalRect(); + mInnerRect.stretch( -getBorderWidth() ); if (mScrolledView) { @@ -185,13 +193,14 @@ void LLScrollContainer::reshape(S32 width, S32 height, S32 visible_height = 0; BOOL show_v_scrollbar = FALSE; BOOL show_h_scrollbar = FALSE; - calcVisibleSize( scrolled_rect, &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); + calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); mScrollbar[VERTICAL]->setDocSize( scrolled_rect.getHeight() ); mScrollbar[VERTICAL]->setPageSize( visible_height ); mScrollbar[HORIZONTAL]->setDocSize( scrolled_rect.getWidth() ); mScrollbar[HORIZONTAL]->setPageSize( visible_width ); + updateScroll(); } } @@ -202,7 +211,7 @@ BOOL LLScrollContainer::handleKeyHere(KEY key, MASK mask) // NOTE: this should not recurse indefinitely as handleKeyHere // should not propagate to parent controls, so mScrolledView should *not* // call LLScrollContainer::handleKeyHere in turn - if (mScrolledView->handleKeyHere(key, mask)) + if (mScrolledView && mScrolledView->handleKeyHere(key, mask)) { return TRUE; } @@ -210,6 +219,7 @@ BOOL LLScrollContainer::handleKeyHere(KEY key, MASK mask) { if( mScrollbar[i]->handleKeyHere(key, mask) ) { + updateScroll(); return TRUE; } } @@ -219,39 +229,37 @@ BOOL LLScrollContainer::handleKeyHere(KEY key, MASK mask) BOOL LLScrollContainer::handleScrollWheel( S32 x, S32 y, S32 clicks ) { - for( S32 i = 0; i < SCROLLBAR_COUNT; i++ ) - { - // Note: tries vertical and then horizontal + // Give event to my child views - they may have scroll bars + // (Bad UI design, but technically possible.) + if (LLUICtrl::handleScrollWheel(x,y,clicks)) + return TRUE; + // When the vertical scrollbar is visible, scroll wheel + // only affects vertical scrolling. It's confusing to have + // scroll wheel perform both vertical and horizontal in a + // single container. + LLScrollbar* vertical = mScrollbar[VERTICAL]; + if (vertical->getVisible() + && vertical->getEnabled()) + { // Pretend the mouse is over the scrollbar - if( mScrollbar[i]->handleScrollWheel( 0, 0, clicks ) ) + if (vertical->handleScrollWheel( 0, 0, clicks ) ) { - return TRUE; + updateScroll(); } + // Always eat the event + return TRUE; } - // Eat scroll wheel event (to avoid scrolling nested containers?) - return TRUE; -} - -BOOL LLScrollContainer::needsToScroll(S32 x, S32 y, LLScrollContainer::SCROLL_ORIENTATION axis) const -{ - if(mScrollbar[axis]->getVisible()) + LLScrollbar* horizontal = mScrollbar[HORIZONTAL]; + // Test enablement and visibility for consistency with + // LLView::childrenHandleScrollWheel(). + if (horizontal->getVisible() + && horizontal->getEnabled() + && horizontal->handleScrollWheel( 0, 0, clicks ) ) { - LLRect inner_rect_local( 0, mInnerRect.getHeight(), mInnerRect.getWidth(), 0 ); - const S32 AUTOSCROLL_SIZE = 10; - if(mScrollbar[axis]->getVisible()) - { - static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0); - inner_rect_local.mRight -= scrollbar_size; - inner_rect_local.mTop += AUTOSCROLL_SIZE; - inner_rect_local.mBottom = inner_rect_local.mTop - AUTOSCROLL_SIZE; - } - if( inner_rect_local.pointInRect( x, y ) && (mScrollbar[axis]->getDocPos() > 0) ) - { - return TRUE; - } - + updateScroll(); + return TRUE; } return FALSE; } @@ -266,12 +274,27 @@ BOOL LLScrollContainer::handleDragAndDrop(S32 x, S32 y, MASK mask, static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0); // Scroll folder view if needed. Never accepts a drag or drop. *accept = ACCEPT_NO; - BOOL handled = FALSE; + BOOL handled = autoScroll(x, y); + + if( !handled ) + { + handled = childrenHandleDragAndDrop(x, y, mask, drop, cargo_type, + cargo_data, accept, tooltip_msg) != NULL; + } + + return TRUE; +} + +bool LLScrollContainer::autoScroll(S32 x, S32 y) +{ + static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0); + + bool scrolling = false; if( mScrollbar[HORIZONTAL]->getVisible() || mScrollbar[VERTICAL]->getVisible() ) { - const S32 AUTOSCROLL_SIZE = 10; - S32 auto_scroll_speed = llround(mAutoScrollRate * LLFrameTimer::getFrameDeltaTimeF32()); - + LLRect screen_local_extents; + screenRectToLocal(getRootView()->getLocalRect(), &screen_local_extents); + LLRect inner_rect_local( 0, mInnerRect.getHeight(), mInnerRect.getWidth(), 0 ); if( mScrollbar[HORIZONTAL]->getVisible() ) { @@ -282,119 +305,92 @@ BOOL LLScrollContainer::handleDragAndDrop(S32 x, S32 y, MASK mask, inner_rect_local.mRight -= scrollbar_size; } + // clip rect against root view + inner_rect_local.intersectWith(screen_local_extents); + + S32 auto_scroll_speed = llround(mAutoScrollRate * LLFrameTimer::getFrameDeltaTimeF32()); + // autoscroll region should take up no more than one third of visible scroller area + S32 auto_scroll_region_width = llmin(inner_rect_local.getWidth() / 3, 10); + S32 auto_scroll_region_height = llmin(inner_rect_local.getHeight() / 3, 10); + if( mScrollbar[HORIZONTAL]->getVisible() ) { - LLRect left_scroll_rect = inner_rect_local; - left_scroll_rect.mRight = AUTOSCROLL_SIZE; + LLRect left_scroll_rect = screen_local_extents; + left_scroll_rect.mRight = inner_rect_local.mLeft + auto_scroll_region_width; if( left_scroll_rect.pointInRect( x, y ) && (mScrollbar[HORIZONTAL]->getDocPos() > 0) ) { mScrollbar[HORIZONTAL]->setDocPos( mScrollbar[HORIZONTAL]->getDocPos() - auto_scroll_speed ); mAutoScrolling = TRUE; - handled = TRUE; + scrolling = true; } - LLRect right_scroll_rect = inner_rect_local; - right_scroll_rect.mLeft = inner_rect_local.mRight - AUTOSCROLL_SIZE; + LLRect right_scroll_rect = screen_local_extents; + right_scroll_rect.mLeft = inner_rect_local.mRight - auto_scroll_region_width; if( right_scroll_rect.pointInRect( x, y ) && (mScrollbar[HORIZONTAL]->getDocPos() < mScrollbar[HORIZONTAL]->getDocPosMax()) ) { mScrollbar[HORIZONTAL]->setDocPos( mScrollbar[HORIZONTAL]->getDocPos() + auto_scroll_speed ); mAutoScrolling = TRUE; - handled = TRUE; + scrolling = true; } } if( mScrollbar[VERTICAL]->getVisible() ) { - LLRect bottom_scroll_rect = inner_rect_local; - bottom_scroll_rect.mTop = AUTOSCROLL_SIZE + bottom_scroll_rect.mBottom; + LLRect bottom_scroll_rect = screen_local_extents; + bottom_scroll_rect.mTop = inner_rect_local.mBottom + auto_scroll_region_height; if( bottom_scroll_rect.pointInRect( x, y ) && (mScrollbar[VERTICAL]->getDocPos() < mScrollbar[VERTICAL]->getDocPosMax()) ) { mScrollbar[VERTICAL]->setDocPos( mScrollbar[VERTICAL]->getDocPos() + auto_scroll_speed ); mAutoScrolling = TRUE; - handled = TRUE; + scrolling = true; } - LLRect top_scroll_rect = inner_rect_local; - top_scroll_rect.mBottom = inner_rect_local.mTop - AUTOSCROLL_SIZE; + LLRect top_scroll_rect = screen_local_extents; + top_scroll_rect.mBottom = inner_rect_local.mTop - auto_scroll_region_height; if( top_scroll_rect.pointInRect( x, y ) && (mScrollbar[VERTICAL]->getDocPos() > 0) ) { mScrollbar[VERTICAL]->setDocPos( mScrollbar[VERTICAL]->getDocPos() - auto_scroll_speed ); mAutoScrolling = TRUE; - handled = TRUE; + scrolling = true; } } } - - if( !handled ) - { - handled = childrenHandleDragAndDrop(x, y, mask, drop, cargo_type, - cargo_data, accept, tooltip_msg) != NULL; - } - - return TRUE; -} - - -BOOL LLScrollContainer::handleToolTip(S32 x, S32 y, std::string& msg, LLRect* sticky_rect) -{ - S32 local_x, local_y; - for( S32 i = 0; i < SCROLLBAR_COUNT; i++ ) - { - local_x = x - mScrollbar[i]->getRect().mLeft; - local_y = y - mScrollbar[i]->getRect().mBottom; - if( mScrollbar[i]->handleToolTip(local_x, local_y, msg, sticky_rect) ) - { - return TRUE; - } - } - // Handle 'child' view. - if( mScrolledView ) - { - local_x = x - mScrolledView->getRect().mLeft; - local_y = y - mScrolledView->getRect().mBottom; - if( mScrolledView->handleToolTip(local_x, local_y, msg, sticky_rect) ) - { - return TRUE; - } - } - - // Opaque - return TRUE; + return scrolling; } void LLScrollContainer::calcVisibleSize( S32 *visible_width, S32 *visible_height, BOOL* show_h_scrollbar, BOOL* show_v_scrollbar ) const { - const LLRect& rect = mScrolledView->getRect(); - calcVisibleSize(rect, visible_width, visible_height, show_h_scrollbar, show_v_scrollbar); -} - -void LLScrollContainer::calcVisibleSize( const LLRect& doc_rect, S32 *visible_width, S32 *visible_height, BOOL* show_h_scrollbar, BOOL* show_v_scrollbar ) const -{ + const LLRect& doc_rect = getScrolledViewRect(); static LLUICachedControl<S32> scrollbar_size ("UIScrollbarSize", 0); S32 doc_width = doc_rect.getWidth(); S32 doc_height = doc_rect.getHeight(); - *visible_width = getRect().getWidth() - 2 * mBorder->getBorderWidth(); - *visible_height = getRect().getHeight() - 2 * mBorder->getBorderWidth(); + S32 border_width = getBorderWidth(); + *visible_width = getRect().getWidth() - 2 * border_width; + *visible_height = getRect().getHeight() - 2 * border_width; *show_v_scrollbar = FALSE; - if( *visible_height < doc_height ) - { - *show_v_scrollbar = TRUE; - *visible_width -= scrollbar_size; - } - *show_h_scrollbar = FALSE; - if( *visible_width < doc_width ) - { - *show_h_scrollbar = TRUE; - *visible_height -= scrollbar_size; - // Must retest now that visible_height has changed - if( !*show_v_scrollbar && (*visible_height < doc_height) ) + if (!mHideScrollbar) + { + if( *visible_height < doc_height ) { *show_v_scrollbar = TRUE; *visible_width -= scrollbar_size; } + + if( *visible_width < doc_width ) + { + *show_h_scrollbar = TRUE; + *visible_height -= scrollbar_size; + + // Must retest now that visible_height has changed + if( !*show_v_scrollbar && (*visible_height < doc_height) ) + { + *show_v_scrollbar = TRUE; + *visible_width -= scrollbar_size; + } + } } } @@ -405,20 +401,20 @@ void LLScrollContainer::draw() if (mAutoScrolling) { // add acceleration to autoscroll - mAutoScrollRate = llmin(mAutoScrollRate + (LLFrameTimer::getFrameDeltaTimeF32() * AUTO_SCROLL_RATE_ACCEL), MAX_AUTO_SCROLL_RATE); + mAutoScrollRate = llmin(mAutoScrollRate + (LLFrameTimer::getFrameDeltaTimeF32() * AUTO_SCROLL_RATE_ACCEL), mMaxAutoScrollRate); } else { - // reset to minimum - mAutoScrollRate = MIN_AUTO_SCROLL_RATE; + // reset to minimum for next time + mAutoScrollRate = mMinAutoScrollRate; } - // clear this flag to be set on next call to handleDragAndDrop + // clear this flag to be set on next call to autoScroll mAutoScrolling = FALSE; // auto-focus when scrollbar active // this allows us to capture user intent (i.e. stop automatically scrolling the view/etc) - if (!gFocusMgr.childHasKeyboardFocus(this) && - (mScrollbar[VERTICAL]->hasMouseCapture() || mScrollbar[HORIZONTAL]->hasMouseCapture())) + if (!hasFocus() + && (mScrollbar[VERTICAL]->hasMouseCapture() || mScrollbar[HORIZONTAL]->hasMouseCapture())) { focusFirstItem(); } @@ -445,11 +441,11 @@ void LLScrollContainer::draw() S32 visible_height = 0; BOOL show_v_scrollbar = FALSE; BOOL show_h_scrollbar = FALSE; - calcVisibleSize( mScrolledView->getRect(), &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); + calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); LLLocalClipRect clip(LLRect(mInnerRect.mLeft, mInnerRect.mBottom + (show_h_scrollbar ? scrollbar_size : 0) + visible_height, - visible_width, + mInnerRect.mRight - (show_v_scrollbar ? scrollbar_size: 0), mInnerRect.mBottom + (show_h_scrollbar ? scrollbar_size : 0) )); drawChild(mScrolledView); @@ -481,31 +477,14 @@ void LLScrollContainer::draw() sDepth--; } } - - if (sDebugRects) - { - drawDebugRect(); - } - - //// *HACK: also draw debug rectangles around currently-being-edited LLView, and any elements that are being highlighted by GUI preview code (see LLFloaterUIPreview) - //std::set<LLView*>::iterator iter = std::find(sPreviewHighlightedElements.begin(), sPreviewHighlightedElements.end(), this); - //if ((sEditingUI && this == sEditingUIView) || (iter != sPreviewHighlightedElements.end() && sDrawPreviewHighlights)) - //{ - // drawDebugRect(); - //} - } // end draw bool LLScrollContainer::addChild(LLView* view, S32 tab_group) { if (!mScrolledView) { - //*TODO: Move LLFolderView to llui and enable this check -// if (dynamic_cast<LLPanel*>(view) || dynamic_cast<LLContainerView*>(view) || dynamic_cast<LLScrollingPanelList*>(view) || dynamic_cast<LLFolderView*>(view)) - { - // Use the first panel or container as the scrollable view (bit of a hack) - mScrolledView = view; - } + // Use the first panel or container as the scrollable view (bit of a hack) + mScrolledView = view; } bool ret_val = LLView::addChild(view, tab_group); @@ -517,12 +496,6 @@ bool LLScrollContainer::addChild(LLView* view, S32 tab_group) return ret_val; } -const widget_registry_t& LLScrollContainer::getChildRegistry() const -{ - // a scroll container can contain any default widget - return LLDefaultWidgetRegistry::instance(); -} - void LLScrollContainer::updateScroll() { if (!mScrolledView) @@ -537,9 +510,9 @@ void LLScrollContainer::updateScroll() S32 visible_height = 0; BOOL show_v_scrollbar = FALSE; BOOL show_h_scrollbar = FALSE; - calcVisibleSize( doc_rect, &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); + calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); - S32 border_width = mBorder->getBorderWidth(); + S32 border_width = getBorderWidth(); if( show_v_scrollbar ) { if( doc_rect.mTop < getRect().getHeight() - border_width ) @@ -613,101 +586,116 @@ void LLScrollContainer::updateScroll() void LLScrollContainer::setBorderVisible(BOOL b) { mBorder->setVisible( b ); + // Recompute inner rect, as border visibility changes it + mInnerRect = getLocalRect(); + mInnerRect.stretch( -getBorderWidth() ); } -// Scroll so that as much of rect as possible is showing (where rect is defined in the space of scroller view, not scrolled) -void LLScrollContainer::scrollToShowRect(const LLRect& rect, const LLCoordGL& desired_offset) +LLRect LLScrollContainer::getVisibleContentRect() { - if (!mScrolledView) - { - llwarns << "LLScrollContainer::scrollToShowRect with no view!" << llendl; - return; - } + 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() +{ + updateScroll(); + LLRect scroller_view_rect; S32 visible_width = 0; S32 visible_height = 0; - BOOL show_v_scrollbar = FALSE; BOOL show_h_scrollbar = FALSE; - const LLRect& scrolled_rect = mScrolledView->getRect(); - calcVisibleSize( scrolled_rect, &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); - - // can't be so far left that right side of rect goes off screen, or so far right that left side does - S32 horiz_offset = llclamp(desired_offset.mX, llmin(0, -visible_width + rect.getWidth()), 0); - // can't be so high that bottom of rect goes off screen, or so low that top does - S32 vert_offset = llclamp(desired_offset.mY, 0, llmax(0, visible_height - rect.getHeight())); - - // Vertical - // 1. First make sure the top is visible - // 2. Then, if possible without hiding the top, make the bottom visible. - S32 vert_pos = mScrollbar[VERTICAL]->getDocPos(); - - // find scrollbar position to get top of rect on screen (scrolling up) - S32 top_offset = scrolled_rect.mTop - rect.mTop - vert_offset; - // find scrollbar position to get bottom of rect on screen (scrolling down) - S32 bottom_offset = vert_offset == 0 ? scrolled_rect.mTop - rect.mBottom - visible_height : top_offset; - // scroll up far enough to see top or scroll down just enough if item is bigger than visual area - if( vert_pos >= top_offset || visible_height < rect.getHeight()) - { - vert_pos = top_offset; - } - // else scroll down far enough to see bottom - else - if( vert_pos <= bottom_offset ) + BOOL show_v_scrollbar = FALSE; + calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar ); + S32 border_width = getBorderWidth(); + 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) { - vert_pos = bottom_offset; + 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( visible_height ); + mScrollbar[VERTICAL]->setPageSize( content_window_rect.getHeight() ); mScrollbar[VERTICAL]->setDocPos( vert_pos ); - // Horizontal - // 1. First make sure left side is visible - // 2. Then, if possible without hiding the left side, make the right side visible. - S32 horiz_pos = mScrollbar[HORIZONTAL]->getDocPos(); - S32 left_offset = rect.mLeft - scrolled_rect.mLeft + horiz_offset; - S32 right_offset = horiz_offset == 0 ? rect.mRight - scrolled_rect.mLeft - visible_width : left_offset; + S32 horizontal_pos = llclamp(mScrollbar[HORIZONTAL]->getDocPos(), + allowable_scroll_rect.mLeft, + allowable_scroll_rect.mRight); - if( horiz_pos >= left_offset || visible_width < rect.getWidth() ) - { - horiz_pos = left_offset; - } - else if( horiz_pos <= right_offset ) - { - horiz_pos = right_offset; - } - mScrollbar[HORIZONTAL]->setDocSize( scrolled_rect.getWidth() ); - mScrollbar[HORIZONTAL]->setPageSize( visible_width ); - mScrollbar[HORIZONTAL]->setDocPos( horiz_pos ); + mScrollbar[HORIZONTAL]->setPageSize( content_window_rect.getWidth() ); + mScrollbar[HORIZONTAL]->setDocPos( horizontal_pos ); // propagate scroll to document updateScroll(); + + // In case we are in accordion tab notify parent to show selected rectangle + LLRect screen_rc; + localRectToScreen(rect_to_constrain, &screen_rc); + notifyParent(LLSD().with("scrollToShowRect",screen_rc.getValue())); } 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) + if (mBorder->getVisible()) { return mBorder->getBorderWidth(); } |