///////////////////////////////////////////////////////////////////////////// // Name: listctrl.h // Purpose: wxListCtrl class // Author: Julian Smart // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_LISTCTRL_H_ #define _WX_LISTCTRL_H_ #ifdef __GNUG__ #pragma interface "listctrl.h" #endif #include "wx/control.h" #include "wx/event.h" #include "wx/imaglist.h" /* The wxListCtrl can show lists of items in four different modes: wxLC_LIST: multicolumn list view, with optional small icons (icons could be optional for some platforms). Columns are computed automatically, i.e. you don't set columns as in wxLC_REPORT. In other words, the list wraps, unlike a wxListBox. wxLC_REPORT: single or multicolumn report view (with optional header) wxLC_ICON: large icon view, with optional labels wxLC_SMALL_ICON: small icon view, with optional labels You can change the style dynamically, either with SetSingleStyle or SetWindowStyleFlag. Further window styles: wxLC_ALIGN_TOP icons align to the top (default) wxLC_ALIGN_LEFT icons align to the left wxLC_AUTOARRANGE icons arrange themselves wxLC_USER_TEXT the app provides label text on demand, except for column headers wxLC_EDIT_LABELS labels are editable: app will be notified. wxLC_NO_HEADER no header in report mode wxLC_NO_SORT_HEADER can't click on header wxLC_SINGLE_SEL single selection wxLC_SORT_ASCENDING sort ascending (must still supply a comparison callback in SortItems) wxLC_SORT_DESCENDING sort descending (ditto) Items are referred to by their index (position in the list starting from zero). Label text is supplied via insertion/setting functions and is stored by the control, unless the wxLC_USER_TEXT style has been specified, in which case the app will be notified when text is required (see sample). Images are dealt with by (optionally) associating 3 image lists with the control. Zero-based indexes into these image lists indicate which image is to be used for which item. Each image in an image list can contain a mask, and can be made out of either a bitmap, two bitmaps or an icon. See ImagList.h for more details. Notifications are passed via the wxWindows 2.0 event system, or using virtual functions in wxWindows 1.66. See the sample wxListCtrl app for API usage. TODO: - addition of further convenience functions to avoid use of wxListItem in some functions - state/overlay images: probably not needed. - in Win95, you can be called back to supply other information besides text, such as state information. This saves no memory and is probably superfluous to requirements. - discover why SetWindowLong doesn't properly change the style, requiring RecreateWindow instead. - testing of whole API, extending current sample. */ // Mask flags to tell app/GUI what fields of wxListItem are valid #define wxLIST_MASK_STATE 0x0001 #define wxLIST_MASK_TEXT 0x0002 #define wxLIST_MASK_IMAGE 0x0004 #define wxLIST_MASK_DATA 0x0008 #define wxLIST_SET_ITEM 0x0010 #define wxLIST_MASK_WIDTH 0x0020 #define wxLIST_MASK_FORMAT 0x0040 // State flags for indicating the state of an item #define wxLIST_STATE_DONTCARE 0x0000 #define wxLIST_STATE_DROPHILITED 0x0001 #define wxLIST_STATE_FOCUSED 0x0002 #define wxLIST_STATE_SELECTED 0x0004 #define wxLIST_STATE_CUT 0x0008 // Hit test flags, used in HitTest #define wxLIST_HITTEST_ABOVE 0x0001 // Above the client area. #define wxLIST_HITTEST_BELOW 0x0002 // Below the client area. #define wxLIST_HITTEST_NOWHERE 0x0004 // In the client area but below the last item. #define wxLIST_HITTEST_ONITEMICON 0x0020 // On the bitmap associated with an item. #define wxLIST_HITTEST_ONITEMLABEL 0x0080 // On the label (string) associated with an item. #define wxLIST_HITTEST_ONITEMRIGHT 0x0100 // In the area to the right of an item. #define wxLIST_HITTEST_ONITEMSTATEICON 0x0200 // On the state icon for a tree view item that is in a user-defined state. #define wxLIST_HITTEST_TOLEFT 0x0400 // To the left of the client area. #define wxLIST_HITTEST_TORIGHT 0x0800 // To the right of the client area. #define wxLIST_HITTEST_ONITEM (wxLIST_HITTEST_ONITEMICON | wxLIST_HITTEST_ONITEMLABEL wxLIST_HITTEST_ONITEMSTATEICON) // Flags for GetNextItem enum { wxLIST_NEXT_ABOVE, // Searches for an item above the specified item wxLIST_NEXT_ALL, // Searches for subsequent item by index wxLIST_NEXT_BELOW, // Searches for an item below the specified item wxLIST_NEXT_LEFT, // Searches for an item to the left of the specified item wxLIST_NEXT_RIGHT, // Searches for an item to the right of the specified item }; // Alignment flags for Arrange enum { wxLIST_ALIGN_DEFAULT, wxLIST_ALIGN_LEFT, wxLIST_ALIGN_TOP, wxLIST_ALIGN_SNAP_TO_GRID }; // Column format enum { wxLIST_FORMAT_LEFT, wxLIST_FORMAT_RIGHT, wxLIST_FORMAT_CENTRE, wxLIST_FORMAT_CENTER = wxLIST_FORMAT_CENTRE }; // Autosize values for SetColumnWidth enum { wxLIST_AUTOSIZE = -1, wxLIST_AUTOSIZE_USEHEADER = -2 }; // Flag values for GetItemRect enum { wxLIST_RECT_BOUNDS, wxLIST_RECT_ICON, wxLIST_RECT_LABEL }; // Flag values for FindItem enum { wxLIST_FIND_UP, wxLIST_FIND_DOWN, wxLIST_FIND_LEFT, wxLIST_FIND_RIGHT }; // wxListItem: data representing an item, or report field. // It also doubles up to represent entire column information // when inserting or setting a column. class WXDLLEXPORT wxListItem: public wxObject { DECLARE_DYNAMIC_CLASS(wxListItem) public: long m_mask; // Indicates what fields are valid long m_itemId; // The zero-based item position int m_col; // Zero-based column, if in report mode long m_state; // The state of the item long m_stateMask; // Which flags of m_state are valid (uses same flags) wxString m_text; // The label/header text int m_image; // The zero-based index into an image list long m_data; // App-defined data // For columns only int m_format; // left, right, centre int m_width; // width of column wxListItem(void); }; // type of compare function for wxListCtrl sort operation typedef int (*wxListCtrlCompare)(long item1, long item2, long sortData); class WXDLLEXPORT wxListCtrl: public wxControl { DECLARE_DYNAMIC_CLASS(wxListCtrl) public: /* * Public interface */ wxListCtrl(void); inline wxListCtrl(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxLC_ICON, const wxValidator& validator = wxDefaultValidator, const wxString& name = "listCtrl") { Create(parent, id, pos, size, style, validator, name); } ~wxListCtrl(void); bool Create(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxLC_ICON, const wxValidator& validator = wxDefaultValidator, const wxString& name = "wxListCtrl"); // Attributes //////////////////////////////////////////////////////////////////////////// // Sets the background colour (GetBackgroundColour already implicit in // wxWindow class) void SetBackgroundColour(const wxColour& col); // Gets information about this column bool GetColumn(int col, wxListItem& item) const; // Sets information about this column bool SetColumn(int col, wxListItem& item) ; // Gets the column width int GetColumnWidth(int col) const; // Sets the column width bool SetColumnWidth(int col, int width) ; // Gets the number of items that can fit vertically in the // visible area of the list control (list or report view) // or the total number of items in the list control (icon // or small icon view) int GetCountPerPage(void) const; // Gets the edit control for editing labels. wxTextCtrl* GetEditControl(void) const; // Gets information about the item bool GetItem(wxListItem& info) const ; // Sets information about the item bool SetItem(wxListItem& info) ; // Sets a string field at a particular column long SetItem(long index, int col, const wxString& label, int imageId = -1); // Gets the item state int GetItemState(long item, long stateMask) const ; // Sets the item state bool SetItemState(long item, long state, long stateMask) ; // Sets the item image bool SetItemImage(long item, int image, int selImage) ; // Gets the item text wxString GetItemText(long item) const ; // Sets the item text void SetItemText(long item, const wxString& str) ; // Gets the item data long GetItemData(long item) const ; // Sets the item data bool SetItemData(long item, long data) ; // Gets the item rectangle bool GetItemRect(long item, wxRect& rect, int code = wxLIST_RECT_BOUNDS) const ; // Gets the item position bool GetItemPosition(long item, wxPoint& pos) const ; // Sets the item position bool SetItemPosition(long item, const wxPoint& pos) ; // Gets the number of items in the list control int GetItemCount(void) const; // Gets the number of columns in the list control int GetColumnCount(void) const; // Retrieves the spacing between icons in pixels. // If small is TRUE, gets the spacing for the small icon // view, otherwise the large icon view. int GetItemSpacing(bool isSmall) const; // Gets the number of selected items in the list control int GetSelectedItemCount(void) const; // Gets the text colour of the listview wxColour GetTextColour(void) const; // Sets the text colour of the listview void SetTextColour(const wxColour& col); // Gets the index of the topmost visible item when in // list or report view long GetTopItem(void) const ; // Add or remove a single window style void SetSingleStyle(long style, bool add = TRUE) ; // Set the whole window style void SetWindowStyleFlag(long style) ; // Searches for an item, starting from 'item'. // item can be -1 to find the first item that matches the // specified flags. // Returns the item or -1 if unsuccessful. long GetNextItem(long item, int geometry = wxLIST_NEXT_ALL, int state = wxLIST_STATE_DONTCARE) const ; // Implementation: converts wxWindows style to MSW style. // Can be a single style flag or a bit list. // oldStyle is 'normalised' so that it doesn't contain // conflicting styles. long ConvertToMSWStyle(long& oldStyle, long style) const; // Gets one of the three image lists wxImageList *GetImageList(int which) const ; // Sets the image list // N.B. There's a quirk in the Win95 list view implementation. // If in wxLC_LIST mode, it'll *still* display images by the labels if // there's a small-icon image list set for the control - even though you // haven't specified wxLIST_MASK_IMAGE when inserting. // So you have to set a NULL small-icon image list to be sure that // the wxLC_LIST mode works without icons. Of course, you may want icons... void SetImageList(wxImageList *imageList, int which) ; // Operations //////////////////////////////////////////////////////////////////////////// // Arranges the items bool Arrange(int flag = wxLIST_ALIGN_DEFAULT); // Deletes an item bool DeleteItem(long item); // Deletes all items bool DeleteAllItems(void) ; // Deletes a column bool DeleteColumn(int col); // Deletes all columns bool DeleteAllColumns(void); // Clears items, and columns if there are any. void ClearAll(void); // Edit the label wxTextCtrl* EditLabel(long item, wxClassInfo* textControlClass = CLASSINFO(wxTextCtrl)); // End label editing, optionally cancelling the edit bool EndEditLabel(bool cancel); // Ensures this item is visible bool EnsureVisible(long item) ; // Find an item whose label matches this string, starting from the item after 'start' // or the beginning if 'start' is -1. long FindItem(long start, const wxString& str, bool partial = FALSE); // Find an item whose data matches this data, starting from the item after 'start' // or the beginning if 'start' is -1. long FindItem(long start, long data); // Find an item nearest this position in the specified direction, starting from // the item after 'start' or the beginning if 'start' is -1. long FindItem(long start, const wxPoint& pt, int direction); // Determines which item (if any) is at the specified point, // giving details in 'flags' (see wxLIST_HITTEST_... flags above) long HitTest(const wxPoint& point, int& flags); // Inserts an item, returning the index of the new item if successful, // -1 otherwise. // TOD: Should also have some further convenience functions // which don't require setting a wxListItem object long InsertItem(wxListItem& info); // Insert a string item long InsertItem(long index, const wxString& label); // Insert an image item long InsertItem(long index, int imageIndex); // Insert an image/string item long InsertItem(long index, const wxString& label, int imageIndex); // For list view mode (only), inserts a column. long InsertColumn(long col, wxListItem& info); long InsertColumn(long col, const wxString& heading, int format = wxLIST_FORMAT_LEFT, int width = -1); // Scrolls the list control. If in icon, small icon or report view mode, // x specifies the number of pixels to scroll. If in list view mode, x // specifies the number of columns to scroll. // If in icon, small icon or list view mode, y specifies the number of pixels // to scroll. If in report view mode, y specifies the number of lines to scroll. bool ScrollList(int dx, int dy); // Sort items. // fn is a function which takes 3 long arguments: item1, item2, data. // item1 is the long data associated with a first item (NOT the index). // item2 is the long data associated with a second item (NOT the index). // data is the same value as passed to SortItems. // The return value is a negative number if the first item should precede the second // item, a positive number of the second item should precede the first, // or zero if the two items are equivalent. // data is arbitrary data to be passed to the sort function. bool SortItems(wxListCtrlCompare fn, long data); /* Why should we need this function? Leave for now. * WE NEED IT because item data may have changed, * but the display needs refreshing (in string callback mode) // Updates an item. If the list control has the wxLI_AUTO_ARRANGE style, // the items will be rearranged. bool Update(long item); */ void Command(wxCommandEvent& event) { ProcessCommand(event); }; // IMPLEMENTATION virtual bool MSWCommand(WXUINT param, WXWORD id); virtual bool MSWNotify(WXWPARAM wParam, WXLPARAM lParam, WXLPARAM *result); // Recreate window - seems to be necessary when changing a style. void RecreateWindow(void); // Add to pool: necessary because Windows needs to have a string // still exist across 3 callbacks. char *AddPool(const wxString& str); protected: wxTextCtrl* m_textCtrl; // The control used for editing a label wxImageList * m_imageListNormal; // The image list for normal icons wxImageList * m_imageListSmall; // The image list for small icons wxImageList * m_imageListState; // The image list state icons (not implemented yet) long m_baseStyle; // Basic Windows style flags, for recreation purposes wxStringList m_stringPool; // Pool of 3 strings to satisfy Windows callback // requirements int m_colCount; // Windows doesn't have GetColumnCount so must // keep track of inserted/deleted columns }; class WXDLLEXPORT wxListEvent : public wxNotifyEvent { public: wxListEvent(wxEventType commandType = wxEVT_NULL, int id = 0); int m_code; long m_itemIndex; long m_oldItemIndex; int m_col; bool m_cancelled; wxPoint m_pointDrag; wxListItem m_item; DECLARE_DYNAMIC_CLASS(wxListEvent) }; typedef void (wxEvtHandler::*wxListEventFunction)(wxListEvent&); #define EVT_LIST_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_LIST_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_LIST_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_LIST_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_DELETE_ITEM(id, fn) { wxEVT_COMMAND_LIST_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_DELETE_ALL_ITEMS(id, fn) { wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_GET_INFO(id, fn) { wxEVT_COMMAND_LIST_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_SET_INFO(id, fn) { wxEVT_COMMAND_LIST_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_ITEM_SELECTED(id, fn) { wxEVT_COMMAND_LIST_ITEM_SELECTED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_ITEM_DESELECTED(id, fn) { wxEVT_COMMAND_LIST_ITEM_DESELECTED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_KEY_DOWN(id, fn) { wxEVT_COMMAND_LIST_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_INSERT_ITEM(id, fn) { wxEVT_COMMAND_LIST_INSERT_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_COL_CLICK(id, fn) { wxEVT_COMMAND_LIST_COL_CLICK, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, NULL }, #define EVT_LIST_ITEM_ACTIVATED(id, fn) { wxEVT_COMMAND_LIST_ITEM_ACTIVATED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxListEventFunction) & fn, (wxObject *) NULL }, #endif // _WX_LISTCTRL_H_