/** * @file llscrolllistctrl.h * @brief A scrolling list of items. This is the one you want to use * in UI code. LLScrollListCell, LLScrollListItem, etc. are utility * classes. * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * 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 * $/LicenseInfo$ */ #ifndef LL_SCROLLLISTCTRL_H #define LL_SCROLLLISTCTRL_H #include <vector> #include <deque> #include "lluictrl.h" #include "llctrlselectioninterface.h" #include "llfontgl.h" #include "llui.h" #include "llstring.h" // LLWString #include "lleditmenuhandler.h" #include "llframetimer.h" #include "llscrollbar.h" #include "lldate.h" #include "llscrolllistitem.h" #include "llscrolllistcolumn.h" #include "llviewborder.h" class LLScrollListCell; class LLTextBox; class LLContextMenu; class LLScrollListCtrl : public LLUICtrl, public LLEditMenuHandler, public LLCtrlListInterface, public LLCtrlScrollInterface { public: struct Contents : public LLInitParam::Block<Contents> { Multiple<LLScrollListColumn::Params> columns; Multiple<LLScrollListItem::Params> rows; //Multiple<Contents> groups; Contents(); }; // *TODO: Add callbacks to Params typedef boost::function<void (void)> callback_t; template<typename T> struct maximum { typedef T result_type; template<typename InputIterator> T operator()(InputIterator first, InputIterator last) const { // If there are no slots to call, just return the // default-constructed value if(first == last ) return T(); T max_value = *first++; while (first != last) { if (max_value < *first) max_value = *first; ++first; } return max_value; } }; typedef boost::signals2::signal<S32 (S32,const LLScrollListItem*,const LLScrollListItem*),maximum<S32> > sort_signal_t; typedef boost::signals2::signal<bool(const LLUUID& user_id)> is_friend_signal_t; struct Params : public LLInitParam::Block<Params, LLUICtrl::Params> { // behavioral flags Optional<bool> multi_select, commit_on_keyboard_movement, mouse_wheel_opaque; // display flags Optional<bool> has_border, draw_heading, draw_stripes, background_visible, scroll_bar_bg_visible; // layout Optional<S32> column_padding, row_padding, page_lines, heading_height; // sort and search behavior Optional<S32> search_column, sort_column; Optional<bool> sort_ascending; // colors Optional<LLUIColor> fg_unselected_color, fg_selected_color, bg_selected_color, fg_disable_color, bg_writeable_color, bg_readonly_color, bg_stripe_color, hovered_color, highlighted_color, scroll_bar_bg_color; Optional<Contents> contents; Optional<LLViewBorder::Params> border; Params(); }; protected: friend class LLUICtrlFactory; LLScrollListCtrl(const Params&); public: virtual ~LLScrollListCtrl(); S32 isEmpty() const; void deleteAllItems() { clearRows(); } // Sets an array of column descriptors void setColumnHeadings(const LLSD& headings); void sortByColumnIndex(U32 column, BOOL ascending); // LLCtrlListInterface functions virtual S32 getItemCount() const; // Adds a single column descriptor: ["name" : string, "label" : string, "width" : integer, "relwidth" : integer ] virtual void addColumn(const LLScrollListColumn::Params& column, EAddPosition pos = ADD_BOTTOM); virtual void addColumn(const LLSD& column, EAddPosition pos = ADD_BOTTOM); virtual void clearColumns(); virtual void setColumnLabel(const std::string& column, const std::string& label); virtual bool preProcessChildNode(LLXMLNodePtr child); virtual LLScrollListColumn* getColumn(S32 index); virtual LLScrollListColumn* getColumn(const std::string& name); virtual S32 getNumColumns() const { return mColumnsIndexed.size(); } // Adds a single element, from an array of: // "columns" => [ "column" => column name, "value" => value, "type" => type, "font" => font, "font-style" => style ], "id" => uuid // Creates missing columns automatically. virtual LLScrollListItem* addElement(const LLSD& element, EAddPosition pos = ADD_BOTTOM, void* userdata = NULL); virtual LLScrollListItem* addRow(LLScrollListItem *new_item, const LLScrollListItem::Params& value, EAddPosition pos = ADD_BOTTOM); virtual LLScrollListItem* addRow(const LLScrollListItem::Params& value, EAddPosition pos = ADD_BOTTOM); // Simple add element. Takes a single array of: // [ "value" => value, "font" => font, "font-style" => style ] virtual void clearRows(); // clears all elements virtual void sortByColumn(const std::string& name, BOOL ascending); // These functions take and return an array of arrays of elements, as above virtual void setValue(const LLSD& value ); virtual LLSD getValue() const; LLCtrlSelectionInterface* getSelectionInterface() { return (LLCtrlSelectionInterface*)this; } LLCtrlListInterface* getListInterface() { return (LLCtrlListInterface*)this; } LLCtrlScrollInterface* getScrollInterface() { return (LLCtrlScrollInterface*)this; } // DEPRECATED: Use setSelectedByValue() below. BOOL setCurrentByID( const LLUUID& id ) { return selectByID(id); } virtual LLUUID getCurrentID() const { return getStringUUIDSelectedItem(); } BOOL operateOnSelection(EOperation op); BOOL operateOnAll(EOperation op); // returns FALSE if unable to set the max count so low BOOL setMaxItemCount(S32 max_count); BOOL selectByID( const LLUUID& id ); // FALSE if item not found // Match item by value.asString(), which should work for string, integer, uuid. // Returns FALSE if not found. BOOL setSelectedByValue(const LLSD& value, BOOL selected); BOOL isSorted() const { return mSorted; } virtual BOOL isSelected(const LLSD& value) const; BOOL hasSelectedItem() const; BOOL handleClick(S32 x, S32 y, MASK mask); BOOL selectFirstItem(); BOOL selectNthItem( S32 index ); BOOL selectItemRange( S32 first, S32 last ); BOOL selectItemAt(S32 x, S32 y, MASK mask); void deleteSingleItem( S32 index ); void deleteItems(const LLSD& sd); void deleteSelectedItems(); void deselectAllItems(BOOL no_commit_on_change = FALSE); // by default, go ahead and commit on selection change void clearHighlightedItems(); virtual void mouseOverHighlightNthItem( S32 index ); S32 getHighlightedItemInx() const { return mHighlightedItem; } void setDoubleClickCallback( callback_t cb ) { mOnDoubleClickCallback = cb; } void setMaximumSelectCallback( callback_t cb) { mOnMaximumSelectCallback = cb; } void setSortChangedCallback( callback_t cb) { mOnSortChangedCallback = cb; } // Convenience function; *TODO: replace with setter above + boost::bind() in calling code void setDoubleClickCallback( boost::function<void (void* userdata)> cb, void* userdata) { mOnDoubleClickCallback = boost::bind(cb, userdata); } void swapWithNext(S32 index); void swapWithPrevious(S32 index); void setCanSelect(BOOL can_select) { mCanSelect = can_select; } virtual BOOL getCanSelect() const { return mCanSelect; } S32 getItemIndex( LLScrollListItem* item ) const; S32 getItemIndex( const LLUUID& item_id ) const; void setCommentText( const std::string& comment_text); LLScrollListItem* addSeparator(EAddPosition pos); // "Simple" interface: use this when you're creating a list that contains only unique strings, only // one of which can be selected at a time. virtual LLScrollListItem* addSimpleElement(const std::string& value, EAddPosition pos = ADD_BOTTOM, const LLSD& id = LLSD()); BOOL selectItemByLabel( const std::string& item, BOOL case_sensitive = TRUE, S32 column = 0 ); // FALSE if item not found BOOL selectItemByPrefix(const std::string& target, BOOL case_sensitive = TRUE); BOOL selectItemByPrefix(const LLWString& target, BOOL case_sensitive = TRUE); LLScrollListItem* getItemByLabel( const std::string& item, BOOL case_sensitive = TRUE, S32 column = 0 ); const std::string getSelectedItemLabel(S32 column = 0) const; LLSD getSelectedValue(); // DEPRECATED: Use LLSD versions of setCommentText() and getSelectedValue(). // "StringUUID" interface: use this when you're creating a list that contains non-unique strings each of which // has an associated, unique UUID, and only one of which can be selected at a time. LLScrollListItem* addStringUUIDItem(const std::string& item_text, const LLUUID& id, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE); LLUUID getStringUUIDSelectedItem() const; LLScrollListItem* getFirstSelected() const; virtual S32 getFirstSelectedIndex() const; std::vector<LLScrollListItem*> getAllSelected() const; S32 getNumSelected() const; LLScrollListItem* getLastSelectedItem() const { return mLastSelected; } // iterate over all items LLScrollListItem* getFirstData() const; LLScrollListItem* getLastData() const; std::vector<LLScrollListItem*> getAllData() const; LLScrollListItem* getItem(const LLSD& sd) const; void setAllowMultipleSelection(BOOL mult ) { mAllowMultipleSelection = mult; } void setBgWriteableColor(const LLColor4 &c) { mBgWriteableColor = c; } void setReadOnlyBgColor(const LLColor4 &c) { mBgReadOnlyColor = c; } void setBgSelectedColor(const LLColor4 &c) { mBgSelectedColor = c; } void setBgStripeColor(const LLColor4& c) { mBgStripeColor = c; } void setFgSelectedColor(const LLColor4 &c) { mFgSelectedColor = c; } void setFgUnselectedColor(const LLColor4 &c){ mFgUnselectedColor = c; } void setHoveredColor(const LLColor4 &c) { mHoveredColor = c; } void setHighlightedColor(const LLColor4 &c) { mHighlightedColor = c; } void setFgDisableColor(const LLColor4 &c) { mFgDisabledColor = c; } void setBackgroundVisible(BOOL b) { mBackgroundVisible = b; } void setDrawStripes(BOOL b) { mDrawStripes = b; } void setColumnPadding(const S32 c) { mColumnPadding = c; } S32 getColumnPadding() const { return mColumnPadding; } void setRowPadding(const S32 c) { mColumnPadding = c; } S32 getRowPadding() const { return mColumnPadding; } void setCommitOnKeyboardMovement(BOOL b) { mCommitOnKeyboardMovement = b; } void setCommitOnSelectionChange(BOOL b) { mCommitOnSelectionChange = b; } void setAllowKeyboardMovement(BOOL b) { mAllowKeyboardMovement = b; } void setMaxSelectable(U32 max_selected) { mMaxSelectable = max_selected; } S32 getMaxSelectable() { return mMaxSelectable; } virtual S32 getScrollPos() const; virtual void setScrollPos( S32 pos ); S32 getSearchColumn(); void setSearchColumn(S32 column) { mSearchColumn = column; } S32 getColumnIndexFromOffset(S32 x); S32 getColumnOffsetFromIndex(S32 index); S32 getRowOffsetFromIndex(S32 index); void clearSearchString() { mSearchString.clear(); } // support right-click context menus for avatar/group lists enum ContextMenuType { MENU_NONE, MENU_AVATAR, MENU_GROUP }; void setContextMenu(const ContextMenuType &menu) { mContextMenuType = menu; } // Overridden from LLView /*virtual*/ void draw(); /*virtual*/ BOOL handleMouseDown(S32 x, S32 y, MASK mask); /*virtual*/ BOOL handleMouseUp(S32 x, S32 y, MASK mask); /*virtual*/ BOOL handleRightMouseDown(S32 x, S32 y, MASK mask); /*virtual*/ BOOL handleDoubleClick(S32 x, S32 y, MASK mask); /*virtual*/ BOOL handleHover(S32 x, S32 y, MASK mask); /*virtual*/ BOOL handleKeyHere(KEY key, MASK mask); /*virtual*/ BOOL handleUnicodeCharHere(llwchar uni_char); /*virtual*/ BOOL handleScrollWheel(S32 x, S32 y, S32 clicks); /*virtual*/ BOOL handleScrollHWheel(S32 x, S32 y, S32 clicks); /*virtual*/ BOOL handleToolTip(S32 x, S32 y, MASK mask); /*virtual*/ void setEnabled(BOOL enabled); /*virtual*/ void setFocus( BOOL b ); /*virtual*/ void onFocusReceived(); /*virtual*/ void onFocusLost(); /*virtual*/ void onMouseLeave(S32 x, S32 y, MASK mask); /*virtual*/ void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE); virtual BOOL isDirty() const; virtual void resetDirty(); // Clear dirty state virtual void updateLayout(); virtual void fitContents(S32 max_width, S32 max_height); virtual LLRect getRequiredRect(); static BOOL rowPreceeds(LLScrollListItem *new_row, LLScrollListItem *test_row); LLRect getItemListRect() { return mItemListRect; } /// Returns rect, in local coords, of a given row/column LLRect getCellRect(S32 row_index, S32 column_index); // Used "internally" by the scroll bar. void onScrollChange( S32 new_pos, LLScrollbar* src ); static void onClickColumn(void *userdata); virtual void updateColumns(bool force_update = false); S32 calcMaxContentWidth(); bool updateColumnWidths(); void setHeadingHeight(S32 heading_height); /** * Sets max visible lines without scroolbar, if this value equals to 0, * then display all items. */ void setPageLines(S32 page_lines ); void setCollapseEmptyColumns(BOOL collapse); LLScrollListItem* hitItem(S32 x,S32 y); virtual void scrollToShowSelected(); // LLEditMenuHandler functions virtual void copy(); virtual BOOL canCopy() const; virtual void cut(); virtual BOOL canCut() const; virtual void selectAll(); virtual BOOL canSelectAll() const; virtual void deselect(); virtual BOOL canDeselect() const; void setNumDynamicColumns(S32 num) { mNumDynamicWidthColumns = num; } void updateStaticColumnWidth(LLScrollListColumn* col, S32 new_width); S32 getTotalStaticColumnWidth() { return mTotalStaticColumnWidth; } std::string getSortColumnName(); BOOL getSortAscending() { return mSortColumns.empty() ? TRUE : mSortColumns.back().second; } BOOL hasSortOrder() const; void clearSortOrder(); S32 selectMultiple( uuid_vec_t ids ); // conceptually const, but mutates mItemList void updateSort() const; // sorts a list without affecting the permanent sort order (so further list insertions can be unsorted, for example) void sortOnce(S32 column, BOOL ascending); // manually call this whenever editing list items in place to flag need for resorting void setNeedsSort(bool val = true) { mSorted = !val; } void dirtyColumns(); // some operation has potentially affected column layout or ordering boost::signals2::connection setSortCallback(sort_signal_t::slot_type cb ) { if (!mSortCallback) mSortCallback = new sort_signal_t(); return mSortCallback->connect(cb); } boost::signals2::connection setIsFriendCallback(const is_friend_signal_t::slot_type& cb); protected: // "Full" interface: use this when you're creating a list that has one or more of the following: // * contains icons // * contains multiple columns // * allows multiple selection // * has items that are not guarenteed to have unique names // * has additional per-item data (e.g. a UUID or void* userdata) // // To add items using this approach, create new LLScrollListItems and LLScrollListCells. Add the // cells (column entries) to each item, and add the item to the LLScrollListCtrl. // // The LLScrollListCtrl owns its items and is responsible for deleting them // (except in the case that the addItem() call fails, in which case it is up // to the caller to delete the item) // // returns FALSE if item faile to be added to list, does NOT delete 'item' BOOL addItem( LLScrollListItem* item, EAddPosition pos = ADD_BOTTOM, BOOL requires_column = TRUE ); typedef std::deque<LLScrollListItem *> item_list; item_list& getItemList() { return mItemList; } void updateLineHeight(); private: void selectPrevItem(BOOL extend_selection); void selectNextItem(BOOL extend_selection); void drawItems(); void updateLineHeightInsert(LLScrollListItem* item); void reportInvalidInput(); BOOL isRepeatedChars(const LLWString& string) const; void selectItem(LLScrollListItem* itemp, BOOL single_select = TRUE); void deselectItem(LLScrollListItem* itemp); void commitIfChanged(); BOOL setSort(S32 column, BOOL ascending); S32 getLinesPerPage(); static void showProfile(std::string id, bool is_group); static void sendIM(std::string id); static void addFriend(std::string id); static void removeFriend(std::string id); static void showNameDetails(std::string id, bool is_group); static void copyNameToClipboard(std::string id, bool is_group); static void copySLURLToClipboard(std::string id, bool is_group); S32 mLineHeight; // the max height of a single line S32 mScrollLines; // how many lines we've scrolled down S32 mPageLines; // max number of lines is it possible to see on the screen given mRect and mLineHeight S32 mHeadingHeight; // the height of the column header buttons, if visible U32 mMaxSelectable; LLScrollbar* mScrollbar; bool mAllowMultipleSelection; bool mAllowKeyboardMovement; bool mCommitOnKeyboardMovement; bool mCommitOnSelectionChange; bool mSelectionChanged; bool mNeedsScroll; bool mMouseWheelOpaque; bool mCanSelect; bool mDisplayColumnHeaders; bool mColumnsDirty; bool mColumnWidthsDirty; mutable item_list mItemList; LLScrollListItem *mLastSelected; S32 mMaxItemCount; LLRect mItemListRect; S32 mColumnPadding; S32 mRowPadding; BOOL mBackgroundVisible; BOOL mDrawStripes; LLUIColor mBgWriteableColor; LLUIColor mBgReadOnlyColor; LLUIColor mBgSelectedColor; LLUIColor mBgStripeColor; LLUIColor mFgSelectedColor; LLUIColor mFgUnselectedColor; LLUIColor mFgDisabledColor; LLUIColor mHoveredColor; LLUIColor mHighlightedColor; S32 mBorderThickness; callback_t mOnDoubleClickCallback; callback_t mOnMaximumSelectCallback; callback_t mOnSortChangedCallback; S32 mHighlightedItem; class LLViewBorder* mBorder; LLContextMenu *mPopupMenu; LLView *mCommentTextView; LLWString mSearchString; LLFrameTimer mSearchTimer; S32 mSearchColumn; S32 mNumDynamicWidthColumns; S32 mTotalStaticColumnWidth; S32 mTotalColumnPadding; mutable bool mSorted; typedef std::map<std::string, LLScrollListColumn*> column_map_t; column_map_t mColumns; bool mDirty; S32 mOriginalSelection; ContextMenuType mContextMenuType; typedef std::vector<LLScrollListColumn*> ordered_columns_t; ordered_columns_t mColumnsIndexed; typedef std::pair<S32, BOOL> sort_column_t; std::vector<sort_column_t> mSortColumns; sort_signal_t* mSortCallback; is_friend_signal_t* mIsFriendSignal; }; // end class LLScrollListCtrl #endif // LL_SCROLLLISTCTRL_H