c45a8d49f1
Get rid of ugly wxDynamicCastThis()s in wxMSW wxControl code and add a
new virtual method overridden in wx{Tree,List}Ctrl instead.
Also stop comparing the font with wxSYS_DEFAULT_GUI_FONT, there doesn't
seem to be any good reason to set this particular font for these
controls neither.
In addition to simplifying and de-ugligying the code, this commit
incidentally fixes -Wnonnull-compare warnings in this code from gcc6
too.
473 lines
17 KiB
C++
473 lines
17 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/listctrl.h
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// Purpose: wxListCtrl class
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// Author: Julian Smart
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// Modified by: Agron Selimaj
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// Created: 01/02/97
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_LISTCTRL_H_
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#define _WX_LISTCTRL_H_
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#include "wx/textctrl.h"
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#include "wx/dynarray.h"
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#include "wx/vector.h"
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class wxMSWListItemData;
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class wxMSWListHeaderCustomDraw;
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// define this symbol to indicate the availability of SetColumnsOrder() and
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// related functions
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#define wxHAS_LISTCTRL_COLUMN_ORDER
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/*
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The wxListCtrl can show lists of items in four different modes:
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wxLC_LIST: multicolumn list view, with optional small icons (icons could be
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optional for some platforms). Columns are computed automatically,
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i.e. you don't set columns as in wxLC_REPORT. In other words,
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the list wraps, unlike a wxListBox.
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wxLC_REPORT: single or multicolumn report view (with optional header)
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wxLC_ICON: large icon view, with optional labels
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wxLC_SMALL_ICON: small icon view, with optional labels
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You can change the style dynamically, either with SetSingleStyle or
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SetWindowStyleFlag.
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Further window styles:
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wxLC_ALIGN_TOP icons align to the top (default)
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wxLC_ALIGN_LEFT icons align to the left
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wxLC_AUTOARRANGE icons arrange themselves
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wxLC_USER_TEXT the app provides label text on demand, except for column headers
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wxLC_EDIT_LABELS labels are editable: app will be notified.
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wxLC_NO_HEADER no header in report mode
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wxLC_NO_SORT_HEADER can't click on header
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wxLC_SINGLE_SEL single selection
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wxLC_SORT_ASCENDING sort ascending (must still supply a comparison callback in SortItems)
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wxLC_SORT_DESCENDING sort descending (ditto)
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Items are referred to by their index (position in the list starting from zero).
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Label text is supplied via insertion/setting functions and is stored by the
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control, unless the wxLC_USER_TEXT style has been specified, in which case
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the app will be notified when text is required (see sample).
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Images are dealt with by (optionally) associating 3 image lists with the control.
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Zero-based indexes into these image lists indicate which image is to be used for
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which item. Each image in an image list can contain a mask, and can be made out
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of either a bitmap, two bitmaps or an icon. See ImagList.h for more details.
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Notifications are passed via the event system.
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See the sample wxListCtrl app for API usage.
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TODO:
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- addition of further convenience functions
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to avoid use of wxListItem in some functions
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- state/overlay images: probably not needed.
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- testing of whole API, extending current sample.
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*/
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class WXDLLIMPEXP_CORE wxListCtrl: public wxListCtrlBase
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{
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public:
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/*
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* Public interface
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*/
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wxListCtrl() { Init(); }
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wxListCtrl(wxWindow *parent,
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wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxLC_ICON,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxListCtrlNameStr)
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{
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Init();
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Create(parent, id, pos, size, style, validator, name);
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}
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virtual ~wxListCtrl();
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bool Create(wxWindow *parent,
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wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxLC_ICON,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxListCtrlNameStr);
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// Attributes
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////////////////////////////////////////////////////////////////////////////
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// Set the control colours
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bool SetForegroundColour(const wxColour& col) wxOVERRIDE;
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bool SetBackgroundColour(const wxColour& col) wxOVERRIDE;
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// Header attributes
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virtual bool SetHeaderAttr(const wxItemAttr& attr) wxOVERRIDE;
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// Gets information about this column
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bool GetColumn(int col, wxListItem& item) const wxOVERRIDE;
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// Sets information about this column
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bool SetColumn(int col, const wxListItem& item) wxOVERRIDE;
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// Gets the column width
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int GetColumnWidth(int col) const wxOVERRIDE;
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// Sets the column width
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bool SetColumnWidth(int col, int width) wxOVERRIDE;
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// Gets the column order from its index or index from its order
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int GetColumnOrder(int col) const;
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int GetColumnIndexFromOrder(int order) const;
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// Gets the column order for all columns
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wxArrayInt GetColumnsOrder() const;
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// Sets the column order for all columns
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bool SetColumnsOrder(const wxArrayInt& orders);
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// Gets the number of items that can fit vertically in the
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// visible area of the list control (list or report view)
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// or the total number of items in the list control (icon
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// or small icon view)
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int GetCountPerPage() const;
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// return the total area occupied by all the items (icon/small icon only)
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wxRect GetViewRect() const;
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// Gets the edit control for editing labels.
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wxTextCtrl* GetEditControl() const;
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// Gets information about the item
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bool GetItem(wxListItem& info) const;
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// Sets information about the item
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bool SetItem(wxListItem& info);
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// Sets a string field at a particular column
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long SetItem(long index, int col, const wxString& label, int imageId = -1);
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// Gets the item state
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int GetItemState(long item, long stateMask) const;
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// Sets the item state
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bool SetItemState(long item, long state, long stateMask);
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// Sets the item image
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bool SetItemImage(long item, int image, int selImage = -1);
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bool SetItemColumnImage(long item, long column, int image);
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// Gets the item text
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wxString GetItemText(long item, int col = 0) const;
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// Sets the item text
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void SetItemText(long item, const wxString& str);
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// Gets the item data
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wxUIntPtr GetItemData(long item) const;
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// Sets the item data
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bool SetItemPtrData(long item, wxUIntPtr data);
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bool SetItemData(long item, long data) { return SetItemPtrData(item, data); }
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// Gets the item rectangle
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bool GetItemRect(long item, wxRect& rect, int code = wxLIST_RECT_BOUNDS) const;
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// Gets the subitem rectangle in report mode
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bool GetSubItemRect(long item, long subItem, wxRect& rect, int code = wxLIST_RECT_BOUNDS) const;
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// Gets the item position
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bool GetItemPosition(long item, wxPoint& pos) const;
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// Sets the item position
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bool SetItemPosition(long item, const wxPoint& pos);
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// Gets the number of items in the list control
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int GetItemCount() const;
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// Gets the number of columns in the list control
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int GetColumnCount() const wxOVERRIDE { return m_colCount; }
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// get the horizontal and vertical components of the item spacing
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wxSize GetItemSpacing() const;
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// Foreground colour of an item.
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void SetItemTextColour( long item, const wxColour& col);
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wxColour GetItemTextColour( long item ) const;
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// Background colour of an item.
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void SetItemBackgroundColour( long item, const wxColour &col);
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wxColour GetItemBackgroundColour( long item ) const;
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// Font of an item.
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void SetItemFont( long item, const wxFont &f);
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wxFont GetItemFont( long item ) const;
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// Checkbox state of an item
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virtual bool HasCheckBoxes() const wxOVERRIDE;
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virtual bool EnableCheckBoxes(bool enable = true) wxOVERRIDE;
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virtual bool IsItemChecked(long item) const wxOVERRIDE;
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virtual void CheckItem(long item, bool check) wxOVERRIDE;
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// Gets the number of selected items in the list control
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int GetSelectedItemCount() const;
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// Gets the text colour of the listview
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wxColour GetTextColour() const;
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// Sets the text colour of the listview
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void SetTextColour(const wxColour& col);
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// Gets the index of the topmost visible item when in
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// list or report view
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long GetTopItem() const;
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// Add or remove a single window style
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void SetSingleStyle(long style, bool add = true);
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// Set the whole window style
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void SetWindowStyleFlag(long style) wxOVERRIDE;
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// Searches for an item, starting from 'item'.
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// item can be -1 to find the first item that matches the
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// specified flags.
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// Returns the item or -1 if unsuccessful.
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long GetNextItem(long item, int geometry = wxLIST_NEXT_ALL, int state = wxLIST_STATE_DONTCARE) const;
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// Gets one of the three image lists
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wxImageList *GetImageList(int which) const wxOVERRIDE;
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// Sets the image list
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void SetImageList(wxImageList *imageList, int which) wxOVERRIDE;
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void AssignImageList(wxImageList *imageList, int which) wxOVERRIDE;
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// refresh items selectively (only useful for virtual list controls)
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void RefreshItem(long item);
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void RefreshItems(long itemFrom, long itemTo);
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// Operations
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////////////////////////////////////////////////////////////////////////////
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// Arranges the items
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bool Arrange(int flag = wxLIST_ALIGN_DEFAULT);
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// Deletes an item
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bool DeleteItem(long item);
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// Deletes all items
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bool DeleteAllItems();
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// Deletes a column
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bool DeleteColumn(int col) wxOVERRIDE;
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// Deletes all columns
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bool DeleteAllColumns() wxOVERRIDE;
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// Clears items, and columns if there are any.
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void ClearAll();
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// Edit the label
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wxTextCtrl* EditLabel(long item, wxClassInfo* textControlClass = wxCLASSINFO(wxTextCtrl));
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// End label editing, optionally cancelling the edit
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bool EndEditLabel(bool cancel);
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// Ensures this item is visible
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bool EnsureVisible(long item);
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// Find an item whose label matches this string, starting from the item after 'start'
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// or the beginning if 'start' is -1.
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long FindItem(long start, const wxString& str, bool partial = false);
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// Find an item whose data matches this data, starting from the item after 'start'
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// or the beginning if 'start' is -1.
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long FindItem(long start, wxUIntPtr data);
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// Find an item nearest this position in the specified direction, starting from
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// the item after 'start' or the beginning if 'start' is -1.
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long FindItem(long start, const wxPoint& pt, int direction);
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// Determines which item (if any) is at the specified point,
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// giving details in 'flags' (see wxLIST_HITTEST_... flags above)
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// Request the subitem number as well at the given coordinate.
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long HitTest(const wxPoint& point, int& flags, long* ptrSubItem = NULL) const;
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// Inserts an item, returning the index of the new item if successful,
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// -1 otherwise.
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long InsertItem(const wxListItem& info);
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// Insert a string item
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long InsertItem(long index, const wxString& label);
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// Insert an image item
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long InsertItem(long index, int imageIndex);
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// Insert an image/string item
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long InsertItem(long index, const wxString& label, int imageIndex);
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// set the number of items in a virtual list control
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void SetItemCount(long count);
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// Scrolls the list control. If in icon, small icon or report view mode,
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// x specifies the number of pixels to scroll. If in list view mode, x
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// specifies the number of columns to scroll.
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// If in icon, small icon or list view mode, y specifies the number of pixels
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// to scroll. If in report view mode, y specifies the number of lines to scroll.
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bool ScrollList(int dx, int dy);
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// Sort items.
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// fn is a function which takes 3 long arguments: item1, item2, data.
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// item1 is the long data associated with a first item (NOT the index).
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// item2 is the long data associated with a second item (NOT the index).
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// data is the same value as passed to SortItems.
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// The return value is a negative number if the first item should precede the second
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// item, a positive number of the second item should precede the first,
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// or zero if the two items are equivalent.
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// data is arbitrary data to be passed to the sort function.
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bool SortItems(wxListCtrlCompare fn, wxIntPtr data);
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// IMPLEMENTATION
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virtual bool MSWCommand(WXUINT param, WXWORD id) wxOVERRIDE;
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virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) wxOVERRIDE;
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virtual bool MSWShouldPreProcessMessage(WXMSG* msg) wxOVERRIDE;
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#if WXWIN_COMPATIBILITY_3_0
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// bring the control in sync with current m_windowStyle value
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wxDEPRECATED_MSG("useless and will be removed in the future, use SetWindowStyleFlag() instead")
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void UpdateStyle();
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#endif // WXWIN_COMPATIBILITY_3_0
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// Event handlers
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////////////////////////////////////////////////////////////////////////////
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// Necessary for drawing hrules and vrules, if specified
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void OnPaint(wxPaintEvent& event);
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virtual bool ShouldInheritColours() const wxOVERRIDE { return false; }
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virtual wxVisualAttributes GetDefaultAttributes() const wxOVERRIDE
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{
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return GetClassDefaultAttributes(GetWindowVariant());
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}
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static wxVisualAttributes
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GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
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// convert our styles to Windows
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virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const wxOVERRIDE;
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// special Windows message handling
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virtual WXLRESULT MSWWindowProc(WXUINT nMsg,
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WXWPARAM wParam,
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WXLPARAM lParam) wxOVERRIDE;
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protected:
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// common part of all ctors
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void Init();
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virtual bool MSWShouldSetDefaultFont() const wxOVERRIDE { return false; }
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// Implement constrained best size calculation.
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virtual int DoGetBestClientHeight(int width) const wxOVERRIDE
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{ return MSWGetBestViewRect(width, -1).y; }
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virtual int DoGetBestClientWidth(int height) const wxOVERRIDE
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{ return MSWGetBestViewRect(-1, height).x; }
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wxSize MSWGetBestViewRect(int x, int y) const;
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// Implement base class pure virtual methods.
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long DoInsertColumn(long col, const wxListItem& info) wxOVERRIDE;
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// free memory taken by all internal data
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void FreeAllInternalData();
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// get the internal data object for this item (may return NULL)
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wxMSWListItemData *MSWGetItemData(long item) const;
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// get the item attribute, either by quering it for virtual control, or by
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// returning the one previously set using setter methods for a normal one
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wxItemAttr *DoGetItemColumnAttr(long item, long column) const;
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wxTextCtrl* m_textCtrl; // The control used for editing a label
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wxImageList * m_imageListNormal; // The image list for normal icons
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wxImageList * m_imageListSmall; // The image list for small icons
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wxImageList * m_imageListState; // The image list state icons (not implemented yet)
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bool m_ownsImageListNormal,
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m_ownsImageListSmall,
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m_ownsImageListState;
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int m_colCount; // Windows doesn't have GetColumnCount so must
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// keep track of inserted/deleted columns
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// all wxMSWListItemData objects we use
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wxVector<wxMSWListItemData *> m_internalData;
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// true if we have any items with custom attributes
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bool m_hasAnyAttr;
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// these functions are only used for virtual list view controls, i.e. the
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// ones with wxLC_VIRTUAL style
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// return the text for the given column of the given item
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virtual wxString OnGetItemText(long item, long column) const;
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// return the icon for the given item. In report view, OnGetItemImage will
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// only be called for the first column. See OnGetItemColumnImage for
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// details.
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virtual int OnGetItemImage(long item) const;
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// return the icon for the given item and column.
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virtual int OnGetItemColumnImage(long item, long column) const;
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// return the attribute for the given item and column (may return NULL if none)
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virtual wxItemAttr *OnGetItemColumnAttr(long item, long WXUNUSED(column)) const
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{
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return OnGetItemAttr(item);
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}
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private:
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// process NM_CUSTOMDRAW notification message
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WXLPARAM OnCustomDraw(WXLPARAM lParam);
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// set the extended styles for the control (used by Create() and
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// UpdateStyle()), only should be called if InReportView()
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void MSWSetExListStyles();
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// initialize the (already created) m_textCtrl with the associated HWND
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void InitEditControl(WXHWND hWnd);
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// destroy m_textCtrl if it's currently valid and reset it to NULL
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void DeleteEditControl();
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// Intercept Escape and Enter keys to avoid them being stolen from our
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// in-place editor control.
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void OnCharHook(wxKeyEvent& event);
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// Object using for header custom drawing if necessary, may be NULL.
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wxMSWListHeaderCustomDraw* m_headerCustomDraw;
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wxDECLARE_DYNAMIC_CLASS(wxListCtrl);
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wxDECLARE_EVENT_TABLE();
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wxDECLARE_NO_COPY_CLASS(wxListCtrl);
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};
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#endif // _WX_LISTCTRL_H_
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