///////////////////////////////////////////////////////////////////////////// // Name: wx/msw/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 #if wxUSE_LISTCTRL #include "wx/control.h" #include "wx/event.h" #include "wx/hash.h" class WXDLLEXPORT wxTextCtrl; class WXDLLEXPORT wxImageList; /* 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. - testing of whole API, extending current sample. */ class WXDLLEXPORT wxListCtrl: public wxControl { public: /* * Public interface */ wxListCtrl() { Init(); } 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 = _T("wxListCtrl")) { Init(); Create(parent, id, pos, size, style, validator, name); } virtual ~wxListCtrl(); 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 = _T("wxListCtrl")); // Attributes //////////////////////////////////////////////////////////////////////////// // Set the control colours bool SetForegroundColour(const wxColour& col); bool 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() const; // Gets the edit control for editing labels. wxTextCtrl* GetEditControl() 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() const; // Gets the number of columns in the list control int GetColumnCount() const { return m_colCount; } // 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() const; // Gets the text colour of the listview wxColour GetTextColour() 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() 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 ; // 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) ; void AssignImageList(wxImageList *imageList, int which) ; // returns true if it is a virtual list control bool IsVirtual() const { return (GetWindowStyle() & wxLC_VIRTUAL) != 0; } // refresh items selectively (only useful for virtual list controls) void RefreshItem(long item); void RefreshItems(long itemFrom, long itemTo); // Operations //////////////////////////////////////////////////////////////////////////// // Arranges the items bool Arrange(int flag = wxLIST_ALIGN_DEFAULT); // Deletes an item bool DeleteItem(long item); // Deletes all items bool DeleteAllItems() ; // Deletes a column bool DeleteColumn(int col); // Deletes all columns bool DeleteAllColumns(); // Clears items, and columns if there are any. void ClearAll(); // 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. 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); // set the number of items in a virtual list control void SetItemCount(long count); // 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); // IMPLEMENTATION virtual bool MSWCommand(WXUINT param, WXWORD id); virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result); // bring the control in sync with current m_windowStyle value void UpdateStyle(); // 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; // Event handlers //////////////////////////////////////////////////////////////////////////// // Necessary for drawing hrules and vrules, if specified void OnPaint(wxPaintEvent& event); protected: // common part of all ctors void Init(); // free memory taken by all attributes and recreate the hash table void FreeAllAttrs(bool dontRecreate = FALSE); 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) bool m_ownsImageListNormal, m_ownsImageListSmall, m_ownsImageListState; long m_baseStyle; // Basic Windows style flags, for recreation purposes int m_colCount; // Windows doesn't have GetColumnCount so must // keep track of inserted/deleted columns // the hash table we use for storing pointers to the items attributes wxHashTable m_attrs; // TRUE if we have any items with custom attributes bool m_hasAnyAttr; // these functions are only used for virtual list view controls, i.e. the // ones with wxLC_VIRTUAL style // return the text for the given column of the given item virtual wxString OnGetItemText(long item, long column) const; // return the icon for the given item virtual int OnGetItemImage(long item) const; // return the attribute for the item (may return NULL if none) virtual wxListItemAttr *OnGetItemAttr(long item) const; private: bool DoCreateControl(int x, int y, int w, int h); // process NM_CUSTOMDRAW notification message WXLPARAM OnCustomDraw(WXLPARAM lParam); DECLARE_DYNAMIC_CLASS(wxListCtrl) DECLARE_EVENT_TABLE() }; #endif // wxUSE_LISTCTRL #endif // _WX_LISTCTRL_H_