/** * @file llcombobox.h * @brief LLComboBox base class * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * 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 * $/LicenseInfo$ */ // A control that displays the name of the chosen item, which when clicked // shows a scrolling box of choices. #ifndef LL_LLCOMBOBOX_H #define LL_LLCOMBOBOX_H #include "llbutton.h" #include "lluictrl.h" #include "llctrlselectioninterface.h" #include "llrect.h" #include "llscrolllistctrl.h" #include "lllineeditor.h" #include <boost/function.hpp> // Classes class LLFontGL; class LLViewBorder; class LLComboBox : public LLUICtrl, public LLCtrlListInterface { public: typedef enum e_preferred_position { ABOVE, BELOW } EPreferredPosition; struct PreferredPositionValues : public LLInitParam::TypeValuesHelper<EPreferredPosition, PreferredPositionValues> { static void declareValues(); }; struct ItemParams : public LLInitParam::Block<ItemParams, LLScrollListItem::Params> { Optional<std::string> label; ItemParams(); }; struct Params : public LLInitParam::Block<Params, LLUICtrl::Params> { Optional<bool> allow_text_entry, show_text_as_tentative, allow_new_values; Optional<S32> max_chars; Optional<commit_callback_t> prearrange_callback, text_entry_callback; Optional<EPreferredPosition, PreferredPositionValues> list_position; // components Optional<LLButton::Params> combo_button; Optional<LLScrollListCtrl::Params> combo_list; Optional<LLLineEditor::Params> combo_editor; Optional<LLButton::Params> drop_down_button; Multiple<ItemParams> items; Params(); }; virtual ~LLComboBox(); /*virtual*/ BOOL postBuild(); protected: friend class LLUICtrlFactory; LLComboBox(const Params&); void initFromParams(const Params&); void prearrangeList(std::string filter = ""); public: // LLView interface virtual void onFocusLost(); virtual BOOL handleToolTip(S32 x, S32 y, MASK mask); virtual BOOL handleKeyHere(KEY key, MASK mask); virtual BOOL handleUnicodeCharHere(llwchar uni_char); // LLUICtrl interface virtual void clear(); // select nothing virtual void onCommit(); virtual BOOL acceptsTextInput() const { return mAllowTextEntry; } virtual BOOL isDirty() const; // Returns TRUE if the user has modified this control. virtual void resetDirty(); // Clear dirty state virtual void setFocus(BOOL b); // Selects item by underlying LLSD value, using LLSD::asString() matching. // For simple items, this is just the name of the label. virtual void setValue(const LLSD& value ); // Gets underlying LLSD value for currently selected items. For simple // items, this is just the label. virtual LLSD getValue() const; void setTextEntry(const LLStringExplicit& text); LLScrollListItem* add(const std::string& name, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE); // add item "name" to menu LLScrollListItem* add(const std::string& name, const LLUUID& id, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE); LLScrollListItem* add(const std::string& name, void* userdata, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE); LLScrollListItem* add(const std::string& name, LLSD value, EAddPosition pos = ADD_BOTTOM, BOOL enabled = TRUE); LLScrollListItem* addSeparator(EAddPosition pos = ADD_BOTTOM); BOOL remove( S32 index ); // remove item by index, return TRUE if found and removed void removeall() { clearRows(); } void sortByName(BOOL ascending = TRUE); // Sort the entries in the combobox by name // Select current item by name using selectItemByLabel. Returns FALSE if not found. BOOL setSimple(const LLStringExplicit& name); // Get name of current item. Returns an empty string if not found. const std::string getSimple() const; // Get contents of column x of selected row virtual const std::string getSelectedItemLabel(S32 column = 0) const; // Sets the label, which doesn't have to exist in the label. // This is probably a UI abuse. void setLabel(const LLStringExplicit& name); BOOL remove(const std::string& name); // remove item "name", return TRUE if found and removed BOOL setCurrentByIndex( S32 index ); S32 getCurrentIndex() const; void createLineEditor(const Params&); //======================================================================== LLCtrlSelectionInterface* getSelectionInterface() { return (LLCtrlSelectionInterface*)this; }; LLCtrlListInterface* getListInterface() { return (LLCtrlListInterface*)this; }; // LLCtrlListInterface functions // See llscrolllistctrl.h virtual S32 getItemCount() const; // Overwrites the default column (See LLScrollListCtrl for format) 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 LLScrollListItem* addElement(const LLSD& value, EAddPosition pos = ADD_BOTTOM, void* userdata = NULL); virtual LLScrollListItem* addSimpleElement(const std::string& value, EAddPosition pos = ADD_BOTTOM, const LLSD& id = LLSD()); virtual void clearRows(); virtual void sortByColumn(const std::string& name, BOOL ascending); // LLCtrlSelectionInterface functions virtual BOOL getCanSelect() const { return TRUE; } virtual BOOL selectFirstItem() { return setCurrentByIndex(0); } virtual BOOL selectNthItem( S32 index ) { return setCurrentByIndex(index); } virtual BOOL selectItemRange( S32 first, S32 last ); virtual S32 getFirstSelectedIndex() const { return getCurrentIndex(); } virtual BOOL setCurrentByID( const LLUUID& id ); virtual LLUUID getCurrentID() const; // LLUUID::null if no items in menu virtual BOOL setSelectedByValue(const LLSD& value, BOOL selected); virtual LLSD getSelectedValue(); virtual BOOL isSelected(const LLSD& value) const; virtual BOOL operateOnSelection(EOperation op); virtual BOOL operateOnAll(EOperation op); //======================================================================== void* getCurrentUserdata(); void setPrearrangeCallback( commit_callback_t cb ) { mPrearrangeCallback = cb; } void setTextEntryCallback( commit_callback_t cb ) { mTextEntryCallback = cb; } void setButtonVisible(BOOL visible); void onButtonMouseDown(); void onListMouseUp(); void onItemSelected(const LLSD& data); void onTextCommit(const LLSD& data); void updateSelection(); virtual void showList(); virtual void hideList(); virtual void onTextEntry(LLLineEditor* line_editor); protected: LLButton* mButton; LLLineEditor* mTextEntry; LLScrollListCtrl* mList; EPreferredPosition mListPosition; LLPointer<LLUIImage> mArrowImage; LLUIString mLabel; BOOL mHasAutocompletedText; private: BOOL mAllowTextEntry; BOOL mAllowNewValues; S32 mMaxChars; BOOL mTextEntryTentative; commit_callback_t mPrearrangeCallback; commit_callback_t mTextEntryCallback; commit_callback_t mSelectionCallback; boost::signals2::connection mTopLostSignalConnection; S32 mLastSelectedIndex; }; // A combo box with icons for the list of items. class LLIconsComboBox : public LLComboBox { public: struct Params : public LLInitParam::Block<Params, LLComboBox::Params> { Optional<S32> icon_column, label_column; Params(); }; /*virtual*/ const std::string getSelectedItemLabel(S32 column = 0) const; private: enum EColumnIndex { ICON_COLUMN = 0, LABEL_COLUMN }; friend class LLUICtrlFactory; LLIconsComboBox(const Params&); virtual ~LLIconsComboBox() {}; S32 mIconColumnIndex; S32 mLabelColumnIndex; }; #endif