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Diffstat (limited to 'indra/llui/llfolderviewitem.cpp')
| -rw-r--r-- | indra/llui/llfolderviewitem.cpp | 2042 |
1 files changed, 2042 insertions, 0 deletions
diff --git a/indra/llui/llfolderviewitem.cpp b/indra/llui/llfolderviewitem.cpp new file mode 100644 index 0000000000..68b442dd9a --- /dev/null +++ b/indra/llui/llfolderviewitem.cpp @@ -0,0 +1,2042 @@ +/** +* @file llfolderviewitem.cpp +* @brief Items and folders that can appear in a hierarchical folder view +* +* $LicenseInfo:firstyear=2001&license=viewerlgpl$ +* Second Life Viewer Source Code +* 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. +* +* 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. +* +* 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 +* +* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA +* $/LicenseInfo$ +*/ +#include "linden_common.h" +#include "llfolderviewitem.h" + +#include "llfolderview.h" +#include "llfolderviewmodel.h" +#include "llpanel.h" +#include "llcriticaldamp.h" +#include "llclipboard.h" +#include "llfocusmgr.h" // gFocusMgr +#include "lltrans.h" +#include "llwindow.h" + +///---------------------------------------------------------------------------- +/// Class LLFolderViewItem +///---------------------------------------------------------------------------- + +static LLDefaultChildRegistry::Register<LLFolderViewItem> r("folder_view_item"); + +// statics +std::map<U8, LLFontGL*> LLFolderViewItem::sFonts; // map of styles to fonts + +// only integers can be initialized in header +const F32 LLFolderViewItem::FOLDER_CLOSE_TIME_CONSTANT = 0.02f; +const F32 LLFolderViewItem::FOLDER_OPEN_TIME_CONSTANT = 0.03f; + +const LLColor4U DEFAULT_WHITE(255, 255, 255); + + +//static +LLFontGL* LLFolderViewItem::getLabelFontForStyle(U8 style) +{ + LLFontGL* rtn = sFonts[style]; + if (!rtn) // grab label font with this style, lazily + { + LLFontDescriptor labelfontdesc("SansSerif", "Small", style); + rtn = LLFontGL::getFont(labelfontdesc); + if (!rtn) + { + rtn = LLFontGL::getFontDefault(); + } + sFonts[style] = rtn; + } + return rtn; +} + +//static +void LLFolderViewItem::initClass() +{ +} + +//static +void LLFolderViewItem::cleanupClass() +{ + sFonts.clear(); +} + + +// NOTE: Optimize this, we call it a *lot* when opening a large inventory +LLFolderViewItem::Params::Params() +: root(), + listener(), + folder_arrow_image("folder_arrow_image"), + folder_indentation("folder_indentation"), + selection_image("selection_image"), + item_height("item_height"), + item_top_pad("item_top_pad"), + creation_date(), + allow_open("allow_open", true) +{} + +// Default constructor +LLFolderViewItem::LLFolderViewItem(const LLFolderViewItem::Params& p) +: LLView(p), + mLabelWidth(0), + mLabelWidthDirty(false), + mParentFolder( NULL ), + mIsSelected( FALSE ), + mIsCurSelection( FALSE ), + mSelectPending(FALSE), + mLabelStyle( LLFontGL::NORMAL ), + mHasVisibleChildren(FALSE), + mIndentation(0), + mItemHeight(p.item_height), + mControlLabelRotation(0.f), + mDragAndDropTarget(FALSE), + mLabel(p.name), + mRoot(p.root), + mViewModelItem(p.listener), + mIsMouseOverTitle(false), + mAllowOpen(p.allow_open) +{ + if (mViewModelItem) + { + mViewModelItem->setFolderViewItem(this); + } +} + +BOOL LLFolderViewItem::postBuild() +{ + refresh(); + return TRUE; +} + +// Destroys the object +LLFolderViewItem::~LLFolderViewItem( void ) +{ + delete mViewModelItem; + mViewModelItem = NULL; +} + +LLFolderView* LLFolderViewItem::getRoot() +{ + return mRoot; +} + +const LLFolderView* LLFolderViewItem::getRoot() const +{ + return mRoot; +} +// Returns true if this object is a child (or grandchild, etc.) of potential_ancestor. +BOOL LLFolderViewItem::isDescendantOf( const LLFolderViewFolder* potential_ancestor ) +{ + LLFolderViewItem* root = this; + while( root->mParentFolder ) + { + if( root->mParentFolder == potential_ancestor ) + { + return TRUE; + } + root = root->mParentFolder; + } + return FALSE; +} + +LLFolderViewItem* LLFolderViewItem::getNextOpenNode(BOOL include_children) +{ + if (!mParentFolder) + { + return NULL; + } + + LLFolderViewItem* itemp = mParentFolder->getNextFromChild( this, include_children ); + while(itemp && !itemp->getVisible()) + { + LLFolderViewItem* next_itemp = itemp->mParentFolder->getNextFromChild( itemp, include_children ); + if (itemp == next_itemp) + { + // hit last item + return itemp->getVisible() ? itemp : this; + } + itemp = next_itemp; + } + + return itemp; +} + +LLFolderViewItem* LLFolderViewItem::getPreviousOpenNode(BOOL include_children) +{ + if (!mParentFolder) + { + return NULL; + } + + LLFolderViewItem* itemp = mParentFolder->getPreviousFromChild( this, include_children ); + + // Skip over items that are invisible or are hidden from the UI. + while(itemp && !itemp->getVisible()) + { + LLFolderViewItem* next_itemp = itemp->mParentFolder->getPreviousFromChild( itemp, include_children ); + if (itemp == next_itemp) + { + // hit first item + return itemp->getVisible() ? itemp : this; + } + itemp = next_itemp; + } + + return itemp; +} + +BOOL LLFolderViewItem::passedFilter(S32 filter_generation) +{ + return getViewModelItem()->passedFilter(filter_generation); +} + +void LLFolderViewItem::refresh() +{ + LLFolderViewModelItem& vmi = *getViewModelItem(); + + mLabel = vmi.getDisplayName(); + + setToolTip(mLabel); + mIcon = vmi.getIcon(); + mIconOpen = vmi.getIconOpen(); + mIconOverlay = vmi.getIconOverlay(); + + if (mRoot->useLabelSuffix()) + { + mLabelStyle = vmi.getLabelStyle(); + mLabelSuffix = vmi.getLabelSuffix(); + } + + //TODO RN: make sure this logic still fires + //std::string searchable_label(mLabel); + //searchable_label.append(mLabelSuffix); + //LLStringUtil::toUpper(searchable_label); + + //if (mSearchableLabel.compare(searchable_label)) + //{ + // mSearchableLabel.assign(searchable_label); + // vmi.dirtyFilter(); + // // some part of label has changed, so overall width has potentially changed, and sort order too + // if (mParentFolder) + // { + // mParentFolder->requestSort(); + // mParentFolder->requestArrange(); + // } + //} + + mLabelWidthDirty = true; + vmi.dirtyFilter(); +} + +// Utility function for LLFolderView +void LLFolderViewItem::arrangeAndSet(BOOL set_selection, + BOOL take_keyboard_focus) +{ + LLFolderView* root = getRoot(); + if (getParentFolder()) + { + getParentFolder()->requestArrange(); + } + if(set_selection) + { + getRoot()->setSelection(this, TRUE, take_keyboard_focus); + if(root) + { + root->scrollToShowSelection(); + } + } +} + + +std::set<LLFolderViewItem*> LLFolderViewItem::getSelectionList() const +{ + std::set<LLFolderViewItem*> selection; + return selection; +} + +// addToFolder() returns TRUE if it succeeds. FALSE otherwise +void LLFolderViewItem::addToFolder(LLFolderViewFolder* folder) +{ + folder->addItem(this); +} + + +// Finds width and height of this object and its children. Also +// makes sure that this view and its children are the right size. +S32 LLFolderViewItem::arrange( S32* width, S32* height ) +{ + const Params& p = LLUICtrlFactory::getDefaultParams<LLFolderViewItem>(); + S32 indentation = p.folder_indentation(); + // Only indent deeper items in hierarchy + mIndentation = (getParentFolder()) + ? getParentFolder()->getIndentation() + indentation + : 0; + if (mLabelWidthDirty) + { + mLabelWidth = ARROW_SIZE + TEXT_PAD + ICON_WIDTH + ICON_PAD + getLabelFontForStyle(mLabelStyle)->getWidth(mLabel) + getLabelFontForStyle(mLabelStyle)->getWidth(mLabelSuffix) + TEXT_PAD_RIGHT; + mLabelWidthDirty = false; + } + + *width = llmax(*width, mLabelWidth + mIndentation); + + // determine if we need to use ellipses to avoid horizontal scroll. EXT-719 + bool use_ellipses = getRoot()->getUseEllipses(); + if (use_ellipses) + { + // limit to set rect to avoid horizontal scrollbar + *width = llmin(*width, getRoot()->getRect().getWidth()); + } + *height = getItemHeight(); + return *height; +} + +S32 LLFolderViewItem::getItemHeight() +{ + return mItemHeight; +} + +// *TODO: This can be optimized a lot by simply recording that it is +// selected in the appropriate places, and assuming that set selection +// means 'deselect' for a leaf item. Do this optimization after +// multiple selection is implemented to make sure it all plays nice +// together. +BOOL LLFolderViewItem::setSelection(LLFolderViewItem* selection, BOOL openitem, BOOL take_keyboard_focus) +{ + if (selection == this && !mIsSelected) + { + selectItem(); + } + else if (mIsSelected) // Deselect everything else. + { + deselectItem(); + } + return mIsSelected; +} + +BOOL LLFolderViewItem::changeSelection(LLFolderViewItem* selection, BOOL selected) +{ + if (selection == this) + { + if (mIsSelected) + { + deselectItem(); + } + else + { + selectItem(); + } + return TRUE; + } + return FALSE; +} + +void LLFolderViewItem::deselectItem(void) +{ + mIsSelected = FALSE; +} + +void LLFolderViewItem::selectItem(void) +{ + if (mIsSelected == FALSE) + { + getViewModelItem()->selectItem(); + mIsSelected = TRUE; + } +} + +BOOL LLFolderViewItem::isMovable() +{ + return getViewModelItem()->isItemMovable(); +} + +BOOL LLFolderViewItem::isRemovable() +{ + return getViewModelItem()->isItemRemovable(); + } + +void LLFolderViewItem::destroyView() +{ + getRoot()->removeFromSelectionList(this); + + if (mParentFolder) + { + // removeView deletes me + mParentFolder->extractItem(this); + } + delete this; +} + +// Call through to the viewed object and return true if it can be +// removed. +//BOOL LLFolderViewItem::removeRecursively(BOOL single_item) +BOOL LLFolderViewItem::remove() +{ + if(!isRemovable()) + { + return FALSE; + } + return getViewModelItem()->removeItem(); + } + +// Build an appropriate context menu for the item. +void LLFolderViewItem::buildContextMenu(LLMenuGL& menu, U32 flags) +{ + getViewModelItem()->buildContextMenu(menu, flags); +} + +void LLFolderViewItem::openItem( void ) +{ + if (mAllowOpen) + { + getViewModelItem()->openItem(); +} +} + +void LLFolderViewItem::rename(const std::string& new_name) +{ + if( !new_name.empty() ) + { + getViewModelItem()->renameItem(new_name); + + //if(mParentFolder) + //{ + // mParentFolder->requestSort(); + //} + } +} + +const std::string& LLFolderViewItem::getName( void ) const +{ + return getViewModelItem()->getName(); +} + +// LLView functionality +BOOL LLFolderViewItem::handleRightMouseDown( S32 x, S32 y, MASK mask ) +{ + if(!mIsSelected) + { + getRoot()->setSelection(this, FALSE); + } + make_ui_sound("UISndClick"); + return TRUE; +} + +BOOL LLFolderViewItem::handleMouseDown( S32 x, S32 y, MASK mask ) +{ + if (LLView::childrenHandleMouseDown(x, y, mask)) + { + return TRUE; + } + + // No handler needed for focus lost since this class has no + // state that depends on it. + gFocusMgr.setMouseCapture( this ); + + if (!mIsSelected) + { + if(mask & MASK_CONTROL) + { + getRoot()->changeSelection(this, !mIsSelected); + } + else if (mask & MASK_SHIFT) + { + getParentFolder()->extendSelectionTo(this); + } + else + { + getRoot()->setSelection(this, FALSE); + } + make_ui_sound("UISndClick"); + } + else + { + mSelectPending = TRUE; + } + + mDragStartX = x; + mDragStartY = y; + return TRUE; +} + +BOOL LLFolderViewItem::handleHover( S32 x, S32 y, MASK mask ) +{ + static LLCachedControl<S32> drag_and_drop_threshold(*LLUI::sSettingGroups["config"],"DragAndDropDistanceThreshold"); + + mIsMouseOverTitle = (y > (getRect().getHeight() - mItemHeight)); + + if( hasMouseCapture() && isMovable() ) + { + LLFolderView* root = getRoot(); + + if( (x - mDragStartX) * (x - mDragStartX) + (y - mDragStartY) * (y - mDragStartY) > drag_and_drop_threshold() * drag_and_drop_threshold() + && root->getCurSelectedItem() + && root->startDrag()) + { + // RN: when starting drag and drop, clear out last auto-open + root->autoOpenTest(NULL); + root->setShowSelectionContext(TRUE); + + // Release keyboard focus, so that if stuff is dropped into the + // world, pressing the delete key won't blow away the inventory + // item. + gFocusMgr.setKeyboardFocus(NULL); + + getWindow()->setCursor(UI_CURSOR_ARROW); + return TRUE; + } + else + { + getWindow()->setCursor(UI_CURSOR_NOLOCKED); + return TRUE; + } + } + else + { + getRoot()->setShowSelectionContext(FALSE); + getWindow()->setCursor(UI_CURSOR_ARROW); + // let parent handle this then... + return FALSE; + } +} + + +BOOL LLFolderViewItem::handleDoubleClick( S32 x, S32 y, MASK mask ) +{ + openItem(); + return TRUE; +} + +BOOL LLFolderViewItem::handleMouseUp( S32 x, S32 y, MASK mask ) +{ + if (LLView::childrenHandleMouseUp(x, y, mask)) + { + return TRUE; + } + + // if mouse hasn't moved since mouse down... + if ( pointInView(x, y) && mSelectPending ) + { + //...then select + if(mask & MASK_CONTROL) + { + getRoot()->changeSelection(this, !mIsSelected); + } + else if (mask & MASK_SHIFT) + { + getParentFolder()->extendSelectionTo(this); + } + else + { + getRoot()->setSelection(this, FALSE); + } + } + + mSelectPending = FALSE; + + if( hasMouseCapture() ) + { + if (getRoot()) + { + getRoot()->setShowSelectionContext(FALSE); + } + gFocusMgr.setMouseCapture( NULL ); + } + return TRUE; +} + +void LLFolderViewItem::onMouseLeave(S32 x, S32 y, MASK mask) +{ + mIsMouseOverTitle = false; +} + +BOOL LLFolderViewItem::handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop, + EDragAndDropType cargo_type, + void* cargo_data, + EAcceptance* accept, + std::string& tooltip_msg) +{ + BOOL handled = FALSE; + BOOL accepted = getViewModelItem()->dragOrDrop(mask,drop,cargo_type,cargo_data, tooltip_msg); + handled = accepted; + if (accepted) + { + mDragAndDropTarget = TRUE; + *accept = ACCEPT_YES_MULTI; + } + else + { + *accept = ACCEPT_NO; + } + if(mParentFolder && !handled) + { + // store this item to get it in LLFolderBridge::dragItemIntoFolder on drop event. + mRoot->setDraggingOverItem(this); + handled = mParentFolder->handleDragAndDropFromChild(mask,drop,cargo_type,cargo_data,accept,tooltip_msg); + mRoot->setDraggingOverItem(NULL); + } + if (handled) + { + lldebugst(LLERR_USER_INPUT) << "dragAndDrop handled by LLFolderViewItem" << llendl; + } + + return handled; +} + +void LLFolderViewItem::draw() +{ + static LLUIColor sFgColor = LLUIColorTable::instance().getColor("MenuItemEnabledColor", DEFAULT_WHITE); + static LLUIColor sHighlightBgColor = LLUIColorTable::instance().getColor("MenuItemHighlightBgColor", DEFAULT_WHITE); + static LLUIColor sHighlightFgColor = LLUIColorTable::instance().getColor("MenuItemHighlightFgColor", DEFAULT_WHITE); + static LLUIColor sFocusOutlineColor = LLUIColorTable::instance().getColor("InventoryFocusOutlineColor", DEFAULT_WHITE); + static LLUIColor sFilterBGColor = LLUIColorTable::instance().getColor("FilterBackgroundColor", DEFAULT_WHITE); + static LLUIColor sFilterTextColor = LLUIColorTable::instance().getColor("FilterTextColor", DEFAULT_WHITE); + static LLUIColor sSuffixColor = LLUIColorTable::instance().getColor("InventoryItemColor", DEFAULT_WHITE); + static LLUIColor sLibraryColor = LLUIColorTable::instance().getColor("InventoryItemLibraryColor", DEFAULT_WHITE); + static LLUIColor sLinkColor = LLUIColorTable::instance().getColor("InventoryItemLinkColor", DEFAULT_WHITE); + static LLUIColor sSearchStatusColor = LLUIColorTable::instance().getColor("InventorySearchStatusColor", DEFAULT_WHITE); + static LLUIColor sMouseOverColor = LLUIColorTable::instance().getColor("InventoryMouseOverColor", DEFAULT_WHITE); + + const Params& default_params = LLUICtrlFactory::getDefaultParams<LLFolderViewItem>(); + const S32 TOP_PAD = default_params.item_top_pad; + const S32 FOCUS_LEFT = 1; + const LLFontGL* font = getLabelFontForStyle(mLabelStyle); + + getViewModelItem()->update(); + + //--------------------------------------------------------------------------------// + // Draw open folder arrow + // + if (hasVisibleChildren() || getViewModelItem()->hasChildren()) + { + LLUIImage* arrow_image = default_params.folder_arrow_image; + gl_draw_scaled_rotated_image( + mIndentation, getRect().getHeight() - ARROW_SIZE - TEXT_PAD - TOP_PAD, + ARROW_SIZE, ARROW_SIZE, mControlLabelRotation, arrow_image->getImage(), sFgColor); + } + + + //--------------------------------------------------------------------------------// + // Draw highlight for selected items + // + const BOOL show_context = (getRoot() ? getRoot()->getShowSelectionContext() : FALSE); + const BOOL filled = show_context || (getRoot() ? getRoot()->getParentPanel()->hasFocus() : FALSE); // If we have keyboard focus, draw selection filled + const S32 focus_top = getRect().getHeight(); + const S32 focus_bottom = getRect().getHeight() - mItemHeight; + const bool folder_open = (getRect().getHeight() > mItemHeight + 4); + if (mIsSelected) // always render "current" item. Only render other selected items if mShowSingleSelection is FALSE + { + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + LLColor4 bg_color = sHighlightBgColor; + if (!mIsCurSelection) + { + // do time-based fade of extra objects + F32 fade_time = (getRoot() ? getRoot()->getSelectionFadeElapsedTime() : 0.0f); + if (getRoot() && getRoot()->getShowSingleSelection()) + { + // fading out + bg_color.mV[VALPHA] = clamp_rescale(fade_time, 0.f, 0.4f, bg_color.mV[VALPHA], 0.f); + } + else + { + // fading in + bg_color.mV[VALPHA] = clamp_rescale(fade_time, 0.f, 0.4f, 0.f, bg_color.mV[VALPHA]); + } + } + gl_rect_2d(FOCUS_LEFT, + focus_top, + getRect().getWidth() - 2, + focus_bottom, + bg_color, filled); + if (mIsCurSelection) + { + gl_rect_2d(FOCUS_LEFT, + focus_top, + getRect().getWidth() - 2, + focus_bottom, + sFocusOutlineColor, FALSE); + } + if (folder_open) + { + gl_rect_2d(FOCUS_LEFT, + focus_bottom + 1, // overlap with bottom edge of above rect + getRect().getWidth() - 2, + 0, + sFocusOutlineColor, FALSE); + if (show_context) + { + gl_rect_2d(FOCUS_LEFT, + focus_bottom + 1, + getRect().getWidth() - 2, + 0, + sHighlightBgColor, TRUE); + } + } + } + else if (mIsMouseOverTitle) + { + gl_rect_2d(FOCUS_LEFT, + focus_top, + getRect().getWidth() - 2, + focus_bottom, + sMouseOverColor, FALSE); + } + + //--------------------------------------------------------------------------------// + // Draw DragNDrop highlight + // + if (mDragAndDropTarget) + { + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + gl_rect_2d(FOCUS_LEFT, + focus_top, + getRect().getWidth() - 2, + focus_bottom, + sHighlightBgColor, FALSE); + if (folder_open) + { + gl_rect_2d(FOCUS_LEFT, + focus_bottom + 1, // overlap with bottom edge of above rect + getRect().getWidth() - 2, + 0, + sHighlightBgColor, FALSE); + } + mDragAndDropTarget = FALSE; + } + + //--------------------------------------------------------------------------------// + // Draw open icon + // + const S32 icon_x = mIndentation + ARROW_SIZE + TEXT_PAD; + if (!mIconOpen.isNull() && (llabs(mControlLabelRotation) > 80)) // For open folders + { + mIconOpen->draw(icon_x, getRect().getHeight() - mIconOpen->getHeight() - TOP_PAD + 1); + } + else if (mIcon) + { + mIcon->draw(icon_x, getRect().getHeight() - mIcon->getHeight() - TOP_PAD + 1); + } + + if (mIconOverlay && getRoot()->showItemLinkOverlays()) + { + mIconOverlay->draw(icon_x, getRect().getHeight() - mIcon->getHeight() - TOP_PAD + 1); + } + + //--------------------------------------------------------------------------------// + // Exit if no label to draw + // + if (mLabel.empty()) + { + return; + } + + std::string::size_type filter_string_length = mViewModelItem->hasFilterStringMatch() ? mViewModelItem->getFilterStringSize() : 0; + F32 right_x = 0; + F32 y = (F32)getRect().getHeight() - font->getLineHeight() - (F32)TEXT_PAD - (F32)TOP_PAD; + F32 text_left = (F32)(ARROW_SIZE + TEXT_PAD + ICON_WIDTH + ICON_PAD + mIndentation); + std::string combined_string = mLabel + mLabelSuffix; + + if (filter_string_length > 0) + { + S32 left = llround(text_left) + font->getWidth(combined_string, 0, mViewModelItem->getFilterStringOffset()) - 2; + S32 right = left + font->getWidth(combined_string, mViewModelItem->getFilterStringOffset(), filter_string_length) + 2; + S32 bottom = llfloor(getRect().getHeight() - font->getLineHeight() - 3 - TOP_PAD); + S32 top = getRect().getHeight() - TOP_PAD; + + LLUIImage* box_image = default_params.selection_image; + LLRect box_rect(left, top, right, bottom); + box_image->draw(box_rect, sFilterBGColor); + } + + LLColor4 color = (mIsSelected && filled) ? sHighlightFgColor : sFgColor; + //TODO RN: implement this in terms of getColor() + //if (highlight_link) color = sLinkColor; + //if (gInventory.isObjectDescendentOf(getViewModelItem()->getUUID(), gInventory.getLibraryRootFolderID())) color = sLibraryColor; + + //--------------------------------------------------------------------------------// + // Draw the actual label text + // + font->renderUTF8(mLabel, 0, text_left, y, color, + LLFontGL::LEFT, LLFontGL::BOTTOM, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, + S32_MAX, getRect().getWidth() - (S32) text_left, &right_x, TRUE); + + //--------------------------------------------------------------------------------// + // Draw label suffix + // + if (!mLabelSuffix.empty()) + { + font->renderUTF8( mLabelSuffix, 0, right_x, y, sSuffixColor, + LLFontGL::LEFT, LLFontGL::BOTTOM, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, + S32_MAX, S32_MAX, &right_x, FALSE ); + } + + //--------------------------------------------------------------------------------// + // Highlight string match + // + if (filter_string_length > 0) + { + F32 match_string_left = text_left + font->getWidthF32(combined_string, 0, mViewModelItem->getFilterStringOffset()); + F32 yy = (F32)getRect().getHeight() - font->getLineHeight() - (F32)TEXT_PAD - (F32)TOP_PAD; + font->renderUTF8( combined_string, mViewModelItem->getFilterStringOffset(), match_string_left, yy, + sFilterTextColor, LLFontGL::LEFT, LLFontGL::BOTTOM, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, + filter_string_length, S32_MAX, &right_x, FALSE ); + } +} + +const LLFolderViewModelInterface* LLFolderViewItem::getFolderViewModel( void ) const +{ + return getRoot()->getFolderViewModel(); +} + +LLFolderViewModelInterface* LLFolderViewItem::getFolderViewModel( void ) +{ + return getRoot()->getFolderViewModel(); +} + +bool LLFolderViewItem::isInSelection() const +{ + return mIsSelected || (mParentFolder && mParentFolder->isInSelection()); +} + + + +///---------------------------------------------------------------------------- +/// Class LLFolderViewFolder +///---------------------------------------------------------------------------- + +LLFolderViewFolder::LLFolderViewFolder( const LLFolderViewItem::Params& p ): + LLFolderViewItem( p ), + mIsOpen(FALSE), + mExpanderHighlighted(FALSE), + mCurHeight(0.f), + mTargetHeight(0.f), + mAutoOpenCountdown(0.f), + mLastArrangeGeneration( -1 ), + mLastCalculatedWidth(0) +{ +} + +// Destroys the object +LLFolderViewFolder::~LLFolderViewFolder( void ) +{ + // The LLView base class takes care of object destruction. make sure that we + // don't have mouse or keyboard focus + gFocusMgr.releaseFocusIfNeeded( this ); // calls onCommit() +} + +// addToFolder() returns TRUE if it succeeds. FALSE otherwise +void LLFolderViewFolder::addToFolder(LLFolderViewFolder* folder) +{ + folder->addFolder(this); +} + +static LLFastTimer::DeclareTimer FTM_ARRANGE("Arrange"); + +// Finds width and height of this object and its children. Also +// makes sure that this view and its children are the right size. +S32 LLFolderViewFolder::arrange( S32* width, S32* height ) +{ + // sort before laying out contents + getRoot()->getFolderViewModel()->sort(this); + + LLFastTimer t2(FTM_ARRANGE); + + // evaluate mHasVisibleChildren + mHasVisibleChildren = false; + if (getViewModelItem()->descendantsPassedFilter()) + { + // We have to verify that there's at least one child that's not filtered out + bool found = false; + // Try the items first + for (items_t::iterator iit = mItems.begin(); iit != mItems.end(); ++iit) + { + LLFolderViewItem* itemp = (*iit); + found = itemp->passedFilter(); + if (found) + break; + } + if (!found) + { + // If no item found, try the folders + for (folders_t::iterator fit = mFolders.begin(); fit != mFolders.end(); ++fit) + { + LLFolderViewFolder* folderp = (*fit); + found = folderp->passedFilter(); + if (found) + break; + } + } + + mHasVisibleChildren = found; + } + + // calculate height as a single item (without any children), and reshapes rectangle to match + LLFolderViewItem::arrange( width, height ); + + // clamp existing animated height so as to never get smaller than a single item + mCurHeight = llmax((F32)*height, mCurHeight); + + // initialize running height value as height of single item in case we have no children + F32 running_height = (F32)*height; + F32 target_height = (F32)*height; + + // are my children visible? + if (needsArrange()) + { + // set last arrange generation first, in case children are animating + // and need to be arranged again + mLastArrangeGeneration = getRoot()->getArrangeGeneration(); + if (isOpen()) + { + // Add sizes of children + S32 parent_item_height = getRect().getHeight(); + + for(folders_t::iterator fit = mFolders.begin(); fit != mFolders.end(); ++fit) + { + LLFolderViewFolder* folderp = (*fit); + folderp->setVisible(folderp->passedFilter()); // passed filter or has descendants that passed filter + + if (folderp->getVisible()) + { + S32 child_width = *width; + S32 child_height = 0; + S32 child_top = parent_item_height - llround(running_height); + + target_height += folderp->arrange( &child_width, &child_height ); + + running_height += (F32)child_height; + *width = llmax(*width, child_width); + folderp->setOrigin( 0, child_top - folderp->getRect().getHeight() ); + } + } + for(items_t::iterator iit = mItems.begin(); + iit != mItems.end(); ++iit) + { + LLFolderViewItem* itemp = (*iit); + itemp->setVisible(itemp->passedFilter()); + + if (itemp->getVisible()) + { + S32 child_width = *width; + S32 child_height = 0; + S32 child_top = parent_item_height - llround(running_height); + + target_height += itemp->arrange( &child_width, &child_height ); + // don't change width, as this item is as wide as its parent folder by construction + itemp->reshape( itemp->getRect().getWidth(), child_height); + + running_height += (F32)child_height; + *width = llmax(*width, child_width); + itemp->setOrigin( 0, child_top - itemp->getRect().getHeight() ); + } + } + } + + mTargetHeight = target_height; + // cache this width so next time we can just return it + mLastCalculatedWidth = *width; + } + else + { + // just use existing width + *width = mLastCalculatedWidth; + } + + // animate current height towards target height + if (llabs(mCurHeight - mTargetHeight) > 1.f) + { + mCurHeight = lerp(mCurHeight, mTargetHeight, LLCriticalDamp::getInterpolant(isOpen() ? FOLDER_OPEN_TIME_CONSTANT : FOLDER_CLOSE_TIME_CONSTANT)); + + requestArrange(); + + // hide child elements that fall out of current animated height + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + // number of pixels that bottom of folder label is from top of parent folder + if (getRect().getHeight() - (*fit)->getRect().mTop + (*fit)->getItemHeight() + > llround(mCurHeight) + MAX_FOLDER_ITEM_OVERLAP) + { + // hide if beyond current folder height + (*fit)->setVisible(FALSE); + } + } + + for (items_t::iterator iter = mItems.begin(); + iter != mItems.end();) + { + items_t::iterator iit = iter++; + // number of pixels that bottom of item label is from top of parent folder + if (getRect().getHeight() - (*iit)->getRect().mBottom + > llround(mCurHeight) + MAX_FOLDER_ITEM_OVERLAP) + { + (*iit)->setVisible(FALSE); + } + } + } + else + { + mCurHeight = mTargetHeight; + } + + // don't change width as this item is already as wide as its parent folder + reshape(getRect().getWidth(),llround(mCurHeight)); + + // pass current height value back to parent + *height = llround(mCurHeight); + + return llround(mTargetHeight); +} + +BOOL LLFolderViewFolder::needsArrange() +{ + return mLastArrangeGeneration < getRoot()->getArrangeGeneration(); +} + +//TODO RN: get height resetting working +//void LLFolderViewFolder::setPassedFilter(BOOL passed, BOOL passed_folder, S32 filter_generation) +//{ +// // if this folder is now filtered, but wasn't before +// // (it just passed) +// if (passed && !passedFilter(filter_generation)) +// { +// // reset current height, because last time we drew it +// // it might have had more visible items than now +// mCurHeight = 0.f; +// } +// +// LLFolderViewItem::setPassedFilter(passed, passed_folder, filter_generation); +//} + + +// Passes selection information on to children and record selection +// information if necessary. +BOOL LLFolderViewFolder::setSelection(LLFolderViewItem* selection, BOOL openitem, + BOOL take_keyboard_focus) +{ + BOOL rv = FALSE; + if (selection == this) + { + if (!isSelected()) + { + selectItem(); + } + rv = TRUE; + } + else + { + if (isSelected()) + { + deselectItem(); + } + rv = FALSE; + } + BOOL child_selected = FALSE; + + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + if((*fit)->setSelection(selection, openitem, take_keyboard_focus)) + { + rv = TRUE; + child_selected = TRUE; + } + } + for (items_t::iterator iter = mItems.begin(); + iter != mItems.end();) + { + items_t::iterator iit = iter++; + if((*iit)->setSelection(selection, openitem, take_keyboard_focus)) + { + rv = TRUE; + child_selected = TRUE; + } + } + if(openitem && child_selected) + { + setOpenArrangeRecursively(TRUE); + } + return rv; +} + +// This method is used to change the selection of an item. +// Recursively traverse all children; if 'selection' is 'this' then change +// the select status if necessary. +// Returns TRUE if the selection state of this folder, or of a child, was changed. +BOOL LLFolderViewFolder::changeSelection(LLFolderViewItem* selection, BOOL selected) +{ + BOOL rv = FALSE; + if(selection == this) + { + if (isSelected() != selected) + { + rv = TRUE; + if (selected) + { + selectItem(); + } + else + { + deselectItem(); + } + } + } + + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + if((*fit)->changeSelection(selection, selected)) + { + rv = TRUE; + } + } + for (items_t::iterator iter = mItems.begin(); + iter != mItems.end();) + { + items_t::iterator iit = iter++; + if((*iit)->changeSelection(selection, selected)) + { + rv = TRUE; + } + } + return rv; +} + +LLFolderViewFolder* LLFolderViewFolder::getCommonAncestor(LLFolderViewItem* item_a, LLFolderViewItem* item_b, bool& reverse) +{ + if (!item_a->getParentFolder() || !item_b->getParentFolder()) return NULL; + + std::deque<LLFolderViewFolder*> item_a_ancestors; + + LLFolderViewFolder* parent = item_a->getParentFolder(); + while(parent) + { + item_a_ancestors.push_back(parent); + parent = parent->getParentFolder(); + } + + std::deque<LLFolderViewFolder*> item_b_ancestors; + + parent = item_b->getParentFolder(); + while(parent) + { + item_b_ancestors.push_back(parent); + parent = parent->getParentFolder(); + } + + LLFolderViewFolder* common_ancestor = item_a->getRoot(); + + while(item_a_ancestors.size() > item_b_ancestors.size()) + { + item_a = item_a_ancestors.front(); + item_a_ancestors.pop_front(); + } + + while(item_b_ancestors.size() > item_a_ancestors.size()) + { + item_b = item_b_ancestors.front(); + item_b_ancestors.pop_front(); + } + + while(item_a_ancestors.size()) + { + common_ancestor = item_a_ancestors.front(); + + if (item_a_ancestors.front() == item_b_ancestors.front()) + { + // which came first, sibling a or sibling b? + for (folders_t::iterator it = common_ancestor->mFolders.begin(), end_it = common_ancestor->mFolders.end(); + it != end_it; + ++it) + { + LLFolderViewItem* item = *it; + + if (item == item_a) + { + reverse = false; + return common_ancestor; + } + if (item == item_b) + { + reverse = true; + return common_ancestor; + } + } + + for (items_t::iterator it = common_ancestor->mItems.begin(), end_it = common_ancestor->mItems.end(); + it != end_it; + ++it) + { + LLFolderViewItem* item = *it; + + if (item == item_a) + { + reverse = false; + return common_ancestor; + } + if (item == item_b) + { + reverse = true; + return common_ancestor; + } + } + break; + } + + item_a = item_a_ancestors.front(); + item_a_ancestors.pop_front(); + item_b = item_b_ancestors.front(); + item_b_ancestors.pop_front(); + } + + return NULL; +} + +void LLFolderViewFolder::gatherChildRangeExclusive(LLFolderViewItem* start, LLFolderViewItem* end, bool reverse, std::vector<LLFolderViewItem*>& items) +{ + bool selecting = start == NULL; + if (reverse) + { + for (items_t::reverse_iterator it = mItems.rbegin(), end_it = mItems.rend(); + it != end_it; + ++it) + { + if (*it == end) + { + return; + } + if (selecting) + { + items.push_back(*it); + } + + if (*it == start) + { + selecting = true; + } + } + for (folders_t::reverse_iterator it = mFolders.rbegin(), end_it = mFolders.rend(); + it != end_it; + ++it) + { + if (*it == end) + { + return; + } + + if (selecting) + { + items.push_back(*it); + } + + if (*it == start) + { + selecting = true; + } + } + } + else + { + for (folders_t::iterator it = mFolders.begin(), end_it = mFolders.end(); + it != end_it; + ++it) + { + if (*it == end) + { + return; + } + + if (selecting) + { + items.push_back(*it); + } + + if (*it == start) + { + selecting = true; + } + } + for (items_t::iterator it = mItems.begin(), end_it = mItems.end(); + it != end_it; + ++it) + { + if (*it == end) + { + return; + } + + if (selecting) + { + items.push_back(*it); + } + + if (*it == start) + { + selecting = true; + } + } + } +} + +void LLFolderViewFolder::extendSelectionTo(LLFolderViewItem* new_selection) +{ + if (getRoot()->getAllowMultiSelect() == FALSE) return; + + LLFolderViewItem* cur_selected_item = getRoot()->getCurSelectedItem(); + if (cur_selected_item == NULL) + { + cur_selected_item = new_selection; + } + + + bool reverse = false; + LLFolderViewFolder* common_ancestor = getCommonAncestor(cur_selected_item, new_selection, reverse); + if (!common_ancestor) return; + + LLFolderViewItem* last_selected_item_from_cur = cur_selected_item; + LLFolderViewFolder* cur_folder = cur_selected_item->getParentFolder(); + + std::vector<LLFolderViewItem*> items_to_select_forward; + + while(cur_folder != common_ancestor) + { + cur_folder->gatherChildRangeExclusive(last_selected_item_from_cur, NULL, reverse, items_to_select_forward); + + last_selected_item_from_cur = cur_folder; + cur_folder = cur_folder->getParentFolder(); + } + + std::vector<LLFolderViewItem*> items_to_select_reverse; + + LLFolderViewItem* last_selected_item_from_new = new_selection; + cur_folder = new_selection->getParentFolder(); + while(cur_folder != common_ancestor) + { + cur_folder->gatherChildRangeExclusive(last_selected_item_from_new, NULL, !reverse, items_to_select_reverse); + + last_selected_item_from_new = cur_folder; + cur_folder = cur_folder->getParentFolder(); + } + + common_ancestor->gatherChildRangeExclusive(last_selected_item_from_cur, last_selected_item_from_new, reverse, items_to_select_forward); + + for (std::vector<LLFolderViewItem*>::reverse_iterator it = items_to_select_reverse.rbegin(), end_it = items_to_select_reverse.rend(); + it != end_it; + ++it) + { + items_to_select_forward.push_back(*it); + } + + LLFolderView* root = getRoot(); + + for (std::vector<LLFolderViewItem*>::iterator it = items_to_select_forward.begin(), end_it = items_to_select_forward.end(); + it != end_it; + ++it) + { + LLFolderViewItem* item = *it; + if (item->isSelected()) + { + root->removeFromSelectionList(item); + } + else + { + item->selectItem(); + } + root->addToSelectionList(item); + } + + if (new_selection->isSelected()) + { + root->removeFromSelectionList(new_selection); + } + else + { + new_selection->selectItem(); + } + root->addToSelectionList(new_selection); +} + + +void LLFolderViewFolder::destroyView() +{ + std::for_each(mItems.begin(), mItems.end(), DeletePointer()); + mItems.clear(); + + while (!mFolders.empty()) + { + LLFolderViewFolder *folderp = mFolders.back(); + folderp->destroyView(); // removes entry from mFolders + } + + LLFolderViewItem::destroyView(); +} + +// extractItem() removes the specified item from the folder, but +// doesn't delete it. +void LLFolderViewFolder::extractItem( LLFolderViewItem* item ) +{ + items_t::iterator it = std::find(mItems.begin(), mItems.end(), item); + if(it == mItems.end()) + { + // This is an evil downcast. However, it's only doing + // pointer comparison to find if (which it should be ) the + // item is in the container, so it's pretty safe. + LLFolderViewFolder* f = static_cast<LLFolderViewFolder*>(item); + folders_t::iterator ft; + ft = std::find(mFolders.begin(), mFolders.end(), f); + if (ft != mFolders.end()) + { + mFolders.erase(ft); + } + } + else + { + mItems.erase(it); + } + //item has been removed, need to update filter + getViewModelItem()->removeChild(item->getViewModelItem()); + //because an item is going away regardless of filter status, force rearrange + requestArrange(); + removeChild(item); +} + +BOOL LLFolderViewFolder::isMovable() +{ + if( !(getViewModelItem()->isItemMovable()) ) + { + return FALSE; + } + + for (items_t::iterator iter = mItems.begin(); + iter != mItems.end();) + { + items_t::iterator iit = iter++; + if(!(*iit)->isMovable()) + { + return FALSE; + } + } + + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + if(!(*fit)->isMovable()) + { + return FALSE; + } + } + return TRUE; +} + + +BOOL LLFolderViewFolder::isRemovable() +{ + if( !(getViewModelItem()->isItemRemovable()) ) + { + return FALSE; + } + + for (items_t::iterator iter = mItems.begin(); + iter != mItems.end();) + { + items_t::iterator iit = iter++; + if(!(*iit)->isRemovable()) + { + return FALSE; + } + } + + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + if(!(*fit)->isRemovable()) + { + return FALSE; + } + } + return TRUE; +} + +// this is an internal method used for adding items to folders. +void LLFolderViewFolder::addItem(LLFolderViewItem* item) +{ + if (item->getParentFolder()) + { + item->getParentFolder()->extractItem(item); + } + item->setParentFolder(this); + + mItems.push_back(item); + + item->setRect(LLRect(0, 0, getRect().getWidth(), 0)); + item->setVisible(FALSE); + + + // TODO RN - port creation date management to new code location +#if 0 + // Update the folder creation date if the child is newer than our current date + setCreationDate(llmax<time_t>(mCreationDate, item->getCreationDate())); +#endif + + addChild(item); + getViewModelItem()->addChild(item->getViewModelItem()); + // TODO RN - port creation date management to new code location +#if 0 + // Traverse parent folders and update creation date and resort, if necessary + LLFolderViewFolder* parentp = getParentFolder(); + while (parentp) + { + // Update the folder creation date if the child is newer than our current date + parentp->setCreationDate(llmax<time_t>(parentp->mCreationDate, item->getCreationDate())); + } +#endif + + //TODO RN - make sort bubble up as long as parent Folder doesn't have anything matching sort criteria + //// Traverse parent folders and update creation date and resort, if necessary + //LLFolderViewFolder* parentp = this; + //while (parentp) + //{ + // if (parentp->mSortFunction.isByDate()) + // { + // // parent folder doesn't have a time stamp yet, so get it from us + // parentp->requestSort(); + // } + + // parentp = parentp->getParentFolder(); + //} +} + +// this is an internal method used for adding items to folders. +void LLFolderViewFolder::addFolder(LLFolderViewFolder* folder) +{ + if (folder->mParentFolder) + { + folder->mParentFolder->extractItem(folder); + } + folder->mParentFolder = this; + mFolders.push_back(folder); + folder->setOrigin(0, 0); + folder->reshape(getRect().getWidth(), 0); + folder->setVisible(FALSE); + // rearrange all descendants too, as our indentation level might have changed + //folder->requestArrange(); + //requestSort(); + + addChild( folder ); + getViewModelItem()->addChild(folder->getViewModelItem()); +} + +void LLFolderViewFolder::requestArrange() +{ + //if ( mLastArrangeGeneration != -1) + { + mLastArrangeGeneration = -1; + // flag all items up to root + if (mParentFolder) + { + mParentFolder->requestArrange(); + } + } +} + +void LLFolderViewFolder::toggleOpen() +{ + setOpen(!isOpen()); +} + +// Force a folder open or closed +void LLFolderViewFolder::setOpen(BOOL openitem) +{ + setOpenArrangeRecursively(openitem); +} + +void LLFolderViewFolder::setOpenArrangeRecursively(BOOL openitem, ERecurseType recurse) +{ + BOOL was_open = isOpen(); + mIsOpen = openitem; + if(!was_open && openitem) + { + getViewModelItem()->openItem(); + } + else if(was_open && !openitem) + { + getViewModelItem()->closeItem(); + } + + if (recurse == RECURSE_DOWN || recurse == RECURSE_UP_DOWN) + { + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + (*fit)->setOpenArrangeRecursively(openitem, RECURSE_DOWN); /* Flawfinder: ignore */ + } + } + if (mParentFolder + && (recurse == RECURSE_UP + || recurse == RECURSE_UP_DOWN)) + { + mParentFolder->setOpenArrangeRecursively(openitem, RECURSE_UP); + } + + if (was_open != isOpen()) + { + requestArrange(); + } +} + +BOOL LLFolderViewFolder::handleDragAndDropFromChild(MASK mask, + BOOL drop, + EDragAndDropType c_type, + void* cargo_data, + EAcceptance* accept, + std::string& tooltip_msg) +{ + BOOL accepted = mViewModelItem->dragOrDrop(mask,drop,c_type,cargo_data, tooltip_msg); + if (accepted) + { + mDragAndDropTarget = TRUE; + *accept = ACCEPT_YES_MULTI; + } + else + { + *accept = ACCEPT_NO; + } + + // drag and drop to child item, so clear pending auto-opens + getRoot()->autoOpenTest(NULL); + + return TRUE; +} + +void LLFolderViewFolder::openItem( void ) +{ + toggleOpen(); +} + +void LLFolderViewFolder::applyFunctorToChildren(LLFolderViewFunctor& functor) +{ + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + functor.doItem((*fit)); + } + for (items_t::iterator iter = mItems.begin(); + iter != mItems.end();) + { + items_t::iterator iit = iter++; + functor.doItem((*iit)); + } +} + +void LLFolderViewFolder::applyFunctorRecursively(LLFolderViewFunctor& functor) +{ + functor.doFolder(this); + + for (folders_t::iterator iter = mFolders.begin(); + iter != mFolders.end();) + { + folders_t::iterator fit = iter++; + (*fit)->applyFunctorRecursively(functor); + } + for (items_t::iterator iter = mItems.begin(); + iter != mItems.end();) + { + items_t::iterator iit = iter++; + functor.doItem((*iit)); + } +} + +// LLView functionality +BOOL LLFolderViewFolder::handleDragAndDrop(S32 x, S32 y, MASK mask, + BOOL drop, + EDragAndDropType cargo_type, + void* cargo_data, + EAcceptance* accept, + std::string& tooltip_msg) +{ + BOOL handled = FALSE; + + if (isOpen()) + { + handled = (childrenHandleDragAndDrop(x, y, mask, drop, cargo_type, cargo_data, accept, tooltip_msg) != NULL); + } + + if (!handled) + { + handleDragAndDropToThisFolder(mask, drop, cargo_type, cargo_data, accept, tooltip_msg); + + lldebugst(LLERR_USER_INPUT) << "dragAndDrop handled by LLFolderViewFolder" << llendl; + } + + return TRUE; +} + +BOOL LLFolderViewFolder::handleDragAndDropToThisFolder(MASK mask, + BOOL drop, + EDragAndDropType cargo_type, + void* cargo_data, + EAcceptance* accept, + std::string& tooltip_msg) +{ + BOOL accepted = getViewModelItem()->dragOrDrop(mask,drop,cargo_type,cargo_data, tooltip_msg); + + if (accepted) + { + mDragAndDropTarget = TRUE; + *accept = ACCEPT_YES_MULTI; + } + else + { + *accept = ACCEPT_NO; + } + + if (!drop && accepted) + { + getRoot()->autoOpenTest(this); + } + + return TRUE; +} + + +BOOL LLFolderViewFolder::handleRightMouseDown( S32 x, S32 y, MASK mask ) +{ + BOOL handled = FALSE; + + if( isOpen() ) + { + handled = childrenHandleRightMouseDown( x, y, mask ) != NULL; + } + if (!handled) + { + handled = LLFolderViewItem::handleRightMouseDown( x, y, mask ); + } + return handled; +} + + +BOOL LLFolderViewFolder::handleHover(S32 x, S32 y, MASK mask) +{ + mIsMouseOverTitle = (y > (getRect().getHeight() - mItemHeight)); + + BOOL handled = LLView::handleHover(x, y, mask); + + if (!handled) + { + // this doesn't do child processing + handled = LLFolderViewItem::handleHover(x, y, mask); + } + + return handled; +} + +BOOL LLFolderViewFolder::handleMouseDown( S32 x, S32 y, MASK mask ) +{ + BOOL handled = FALSE; + if( isOpen() ) + { + handled = childrenHandleMouseDown(x,y,mask) != NULL; + } + if( !handled ) + { + if(mIndentation < x && x < mIndentation + ARROW_SIZE + TEXT_PAD) + { + toggleOpen(); + handled = TRUE; + } + else + { + // do normal selection logic + handled = LLFolderViewItem::handleMouseDown(x, y, mask); + } + } + + return handled; +} + +BOOL LLFolderViewFolder::handleDoubleClick( S32 x, S32 y, MASK mask ) +{ + BOOL handled = FALSE; + if( isOpen() ) + { + handled = childrenHandleDoubleClick( x, y, mask ) != NULL; + } + if( !handled ) + { + if(mIndentation < x && x < mIndentation + ARROW_SIZE + TEXT_PAD) + { + // don't select when user double-clicks plus sign + // so as not to contradict single-click behavior + toggleOpen(); + } + else + { + getRoot()->setSelection(this, FALSE); + toggleOpen(); + } + handled = TRUE; + } + return handled; +} + +void LLFolderViewFolder::draw() +{ + if (mAutoOpenCountdown != 0.f) + { + mControlLabelRotation = mAutoOpenCountdown * -90.f; + } + else if (isOpen()) + { + mControlLabelRotation = lerp(mControlLabelRotation, -90.f, LLCriticalDamp::getInterpolant(0.04f)); + } + else + { + mControlLabelRotation = lerp(mControlLabelRotation, 0.f, LLCriticalDamp::getInterpolant(0.025f)); + } + + LLFolderViewItem::draw(); + + // draw children if root folder, or any other folder that is open or animating to closed state + if( getRoot() == this || (isOpen() || mCurHeight != mTargetHeight )) + { + LLView::draw(); + } + + mExpanderHighlighted = FALSE; +} + +// this does prefix traversal, as folders are listed above their contents +LLFolderViewItem* LLFolderViewFolder::getNextFromChild( LLFolderViewItem* item, BOOL include_children ) +{ + BOOL found_item = FALSE; + + LLFolderViewItem* result = NULL; + // when not starting from a given item, start at beginning + if(item == NULL) + { + found_item = TRUE; + } + + // find current item among children + folders_t::iterator fit = mFolders.begin(); + folders_t::iterator fend = mFolders.end(); + + items_t::iterator iit = mItems.begin(); + items_t::iterator iend = mItems.end(); + + // if not trivially starting at the beginning, we have to find the current item + if (!found_item) + { + // first, look among folders, since they are always above items + for(; fit != fend; ++fit) + { + if(item == (*fit)) + { + found_item = TRUE; + // if we are on downwards traversal + if (include_children && (*fit)->isOpen()) + { + // look for first descendant + return (*fit)->getNextFromChild(NULL, TRUE); + } + // otherwise advance to next folder + ++fit; + include_children = TRUE; + break; + } + } + + // didn't find in folders? Check items... + if (!found_item) + { + for(; iit != iend; ++iit) + { + if(item == (*iit)) + { + found_item = TRUE; + // point to next item + ++iit; + break; + } + } + } + } + + if (!found_item) + { + // you should never call this method with an item that isn't a child + // so we should always find something + llassert(FALSE); + return NULL; + } + + // at this point, either iit or fit point to a candidate "next" item + // if both are out of range, we need to punt up to our parent + + // now, starting from found folder, continue through folders + // searching for next visible folder + while(fit != fend && !(*fit)->getVisible()) + { + // turn on downwards traversal for next folder + ++fit; + } + + if (fit != fend) + { + result = (*fit); + } + else + { + // otherwise, scan for next visible item + while(iit != iend && !(*iit)->getVisible()) + { + ++iit; + } + + // check to see if we have a valid item + if (iit != iend) + { + result = (*iit); + } + } + + if( !result && mParentFolder ) + { + // If there are no siblings or children to go to, recurse up one level in the tree + // and skip children for this folder, as we've already discounted them + result = mParentFolder->getNextFromChild(this, FALSE); + } + + return result; +} + +// this does postfix traversal, as folders are listed above their contents +LLFolderViewItem* LLFolderViewFolder::getPreviousFromChild( LLFolderViewItem* item, BOOL include_children ) +{ + BOOL found_item = FALSE; + + LLFolderViewItem* result = NULL; + // when not starting from a given item, start at end + if(item == NULL) + { + found_item = TRUE; + } + + // find current item among children + folders_t::reverse_iterator fit = mFolders.rbegin(); + folders_t::reverse_iterator fend = mFolders.rend(); + + items_t::reverse_iterator iit = mItems.rbegin(); + items_t::reverse_iterator iend = mItems.rend(); + + // if not trivially starting at the end, we have to find the current item + if (!found_item) + { + // first, look among items, since they are always below the folders + for(; iit != iend; ++iit) + { + if(item == (*iit)) + { + found_item = TRUE; + // point to next item + ++iit; + break; + } + } + + // didn't find in items? Check folders... + if (!found_item) + { + for(; fit != fend; ++fit) + { + if(item == (*fit)) + { + found_item = TRUE; + // point to next folder + ++fit; + break; + } + } + } + } + + if (!found_item) + { + // you should never call this method with an item that isn't a child + // so we should always find something + llassert(FALSE); + return NULL; + } + + // at this point, either iit or fit point to a candidate "next" item + // if both are out of range, we need to punt up to our parent + + // now, starting from found item, continue through items + // searching for next visible item + while(iit != iend && !(*iit)->getVisible()) + { + ++iit; + } + + if (iit != iend) + { + // we found an appropriate item + result = (*iit); + } + else + { + // otherwise, scan for next visible folder + while(fit != fend && !(*fit)->getVisible()) + { + ++fit; + } + + // check to see if we have a valid folder + if (fit != fend) + { + // try selecting child element of this folder + if ((*fit)->isOpen()) + { + result = (*fit)->getPreviousFromChild(NULL); + } + else + { + result = (*fit); + } + } + } + + if( !result ) + { + // If there are no siblings or children to go to, recurse up one level in the tree + // which gets back to this folder, which will only be visited if it is a valid, visible item + result = this; + } + + return result; +} + |