///////////////////////////////////////////////////////////////////////////////
-// Name: listbox.cpp
+// Name: src/msw/listbox.cpp
// Purpose: wxListBox
// Author: Julian Smart
// Modified by: Vadim Zeitlin (owner drawn stuff)
// Created:
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
- #pragma implementation "listbox.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#if wxUSE_LISTBOX
+
+#include "wx/listbox.h"
+
#ifndef WX_PRECOMP
- #include "wx/listbox.h"
+ #include "wx/dynarray.h"
#include "wx/settings.h"
#include "wx/brush.h"
#include "wx/font.h"
#include "wx/dc.h"
+ #include "wx/utils.h"
+ #include "wx/log.h"
+ #include "wx/window.h"
#endif
#include "wx/msw/private.h"
+#include "wx/msw/dc.h"
-#include <windows.h>
#include <windowsx.h>
-#ifndef __TWIN32__
- #ifdef __GNUWIN32__
- #include <wx/msw/gnuwin32/extra.h>
- #endif
-#endif
-
-#ifdef GetCharWidth
- #undef GetCharWidth
-#endif
-
#if wxUSE_OWNER_DRAWN
#include "wx/ownerdrw.h"
#endif
-#include "wx/dynarray.h"
-#include "wx/log.h"
-
-#if !USE_SHARED_LIBRARY
- IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
-#endif
-
// ============================================================================
// list box item declaration and implementation
// ============================================================================
class wxListBoxItem : public wxOwnerDrawn
{
public:
- wxListBoxItem(const wxString& str = "");
-};
+ wxListBoxItem(wxListBox *parent)
+ { m_parent = parent; }
-wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
-{
- // no bitmaps/checkmarks
- SetMarginWidth(0);
-}
+ wxListBox *GetParent() const
+ { return m_parent; }
-wxOwnerDrawn *wxListBox::CreateItem(size_t n)
+ int GetIndex() const
+ { return m_parent->GetItemIndex(const_cast<wxListBoxItem*>(this)); }
+
+ wxString GetName() const
+ { return m_parent->GetString(GetIndex()); }
+
+private:
+ wxListBox *m_parent;
+};
+
+wxOwnerDrawn *wxListBox::CreateLboxItem(size_t WXUNUSED(n))
{
- return new wxListBoxItem();
+ return new wxListBoxItem(this);
}
#endif //USE_OWNER_DRAWN
// list box control implementation
// ============================================================================
-// this macro is dangerous but still better than tons of (HWND)GetHWND()
-#define hwnd (HWND)GetHWND()
-
-bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
-{
- /*
- if (param == LBN_SELCANCEL)
- {
- event.extraLong = FALSE;
- }
- */
- if (param == LBN_SELCHANGE)
- {
- wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
- wxArrayInt aSelections;
- int count = GetSelections(aSelections);
- if ( count > 0 )
- {
- event.m_commandInt = aSelections[0] ;
- event.m_clientData = GetClientData(event.m_commandInt);
- wxString str(GetString(event.m_commandInt));
- if (str != "")
- event.m_commandString = copystring((char *)(const char *)str);
- }
- else
- {
- event.m_commandInt = -1 ;
- event.m_commandString = copystring("") ;
- }
-
- event.SetEventObject( this );
- ProcessCommand(event);
- if (event.m_commandString)
- delete[] event.m_commandString ;
- return TRUE;
- }
- else if (param == LBN_DBLCLK)
- {
- wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
- event.SetEventObject( this );
- GetEventHandler()->ProcessEvent(event) ;
- return TRUE;
- }
-
- return FALSE;
-}
+// ----------------------------------------------------------------------------
+// creation
+// ----------------------------------------------------------------------------
- // Listbox item
-wxListBox::wxListBox()
+void wxListBox::Init()
{
m_noItems = 0;
- m_selected = 0;
+ m_updateHorizontalExtent = false;
+ m_selectedByKeyboard = false;
}
bool wxListBox::Create(wxWindow *parent,
const wxValidator& validator,
const wxString& name)
{
- m_noItems = 0;
- m_hWnd = 0;
- m_selected = 0;
-
- SetName(name);
- SetValidator(validator);
-
- if (parent)
- parent->AddChild(this);
+ // initialize base class fields
+ if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+ return false;
- wxSystemSettings settings;
- SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(parent->GetForegroundColour());
-
- m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
-
- int x = pos.x;
- int y = pos.y;
- int width = size.x;
- int height = size.y;
- m_windowStyle = style;
-
- DWORD wstyle = WS_VSCROLL | WS_TABSTOP | LBS_NOTIFY | LBS_HASSTRINGS;
- if (m_windowStyle & wxLB_MULTIPLE)
- wstyle |= LBS_MULTIPLESEL;
- else if (m_windowStyle & wxLB_EXTENDED)
- wstyle |= LBS_EXTENDEDSEL;
-
- if (m_windowStyle & wxLB_ALWAYS_SB)
- wstyle |= LBS_DISABLENOSCROLL ;
- if (m_windowStyle & wxLB_HSCROLL)
- wstyle |= WS_HSCROLL;
- if (m_windowStyle & wxLB_SORT)
- wstyle |= LBS_SORT;
-
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW ) {
- // we don't support LBS_OWNERDRAWVARIABLE yet
- wstyle |= LBS_OWNERDRAWFIXED;
+ // create the native control
+ if ( !MSWCreateControl(wxT("LISTBOX"), wxEmptyString, pos, size) )
+ {
+ // control creation failed
+ return false;
}
-#endif
-
- // Without this style, you get unexpected heights, so e.g. constraint layout
- // doesn't work properly
- wstyle |= LBS_NOINTEGRALHEIGHT;
- bool want3D;
- WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
-
- // Even with extended styles, need to combine with WS_BORDER
- // for them to look right.
- if ( want3D || wxStyleHasBorder(m_windowStyle) )
+ // initialize the contents
+ for ( int i = 0; i < n; i++ )
{
- wstyle |= WS_BORDER;
+ Append(choices[i]);
}
- m_hWnd = (WXHWND)::CreateWindowEx(exStyle, "LISTBOX", NULL,
- wstyle | WS_CHILD,
- 0, 0, 0, 0,
- (HWND)parent->GetHWND(), (HMENU)m_windowId,
- wxGetInstance(), NULL);
+ // now we can compute our best size correctly, so do it again
+ SetInitialSize(size);
- wxCHECK_MSG( m_hWnd, FALSE, "Failed to create listbox" );
+ return true;
+}
-#if wxUSE_CTL3D
- if (want3D)
- {
- Ctl3dSubclassCtl(hwnd);
- m_useCtl3D = TRUE;
- }
-#endif
+bool wxListBox::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ const wxArrayString& choices,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
+{
+ wxCArrayString chs(choices);
+ return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
+ style, validator, name);
+}
- // Subclass again to catch messages
- SubclassWin(m_hWnd);
+wxListBox::~wxListBox()
+{
+ Clear();
+}
- size_t ui;
- for (ui = 0; ui < (size_t)n; ui++) {
- Append(choices[ui]);
- }
+WXDWORD wxListBox::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+ WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
- if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
- SendMessage(hwnd, LB_SETCURSEL, 0, 0);
+ // we always want to get the notifications
+ msStyle |= LBS_NOTIFY;
- SetFont(parent->GetFont());
+ // without this style, you get unexpected heights, so e.g. constraint
+ // layout doesn't work properly
+ msStyle |= LBS_NOINTEGRALHEIGHT;
- SetSize(x, y, width, height);
+ wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
+ wxT("only one of listbox selection modes can be specified") );
- Show(TRUE);
+ if ( style & wxLB_MULTIPLE )
+ msStyle |= LBS_MULTIPLESEL;
+ else if ( style & wxLB_EXTENDED )
+ msStyle |= LBS_EXTENDEDSEL;
- return TRUE;
-}
+ wxASSERT_MSG( !(style & wxLB_ALWAYS_SB) || !(style & wxLB_NO_SB),
+ wxT( "Conflicting styles wxLB_ALWAYS_SB and wxLB_NO_SB." ) );
-wxListBox::~wxListBox()
-{
-#if wxUSE_OWNER_DRAWN
- size_t uiCount = m_aItems.Count();
- while ( uiCount-- != 0 ) {
- delete m_aItems[uiCount];
+ if ( !(style & wxLB_NO_SB) )
+ {
+ msStyle |= WS_VSCROLL;
+ if ( style & wxLB_ALWAYS_SB )
+ msStyle |= LBS_DISABLENOSCROLL;
}
-#endif // wxUSE_OWNER_DRAWN
-}
-void wxListBox::SetupColours()
-{
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(GetParent()->GetForegroundColour());
-}
+ if ( m_windowStyle & wxLB_HSCROLL )
+ msStyle |= WS_HSCROLL;
+ if ( m_windowStyle & wxLB_SORT )
+ msStyle |= LBS_SORT;
-void wxListBox::SetFirstItem(int N)
-{
- wxCHECK_RET( N >= 0 && N < m_noItems,
- "invalid index in wxListBox::SetFirstItem" );
+#if wxUSE_OWNER_DRAWN && !defined(__WXWINCE__)
+ if ( m_windowStyle & wxLB_OWNERDRAW )
+ {
+ // we don't support LBS_OWNERDRAWVARIABLE yet and we also always put
+ // the strings in the listbox for simplicity even though we could have
+ // avoided it in this case
+ msStyle |= LBS_OWNERDRAWFIXED | LBS_HASSTRINGS;
+ }
+#endif // wxUSE_OWNER_DRAWN
- SendMessage(hwnd,LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ;
+ return msStyle;
}
-void wxListBox::SetFirstItem(const wxString& s)
+void wxListBox::OnInternalIdle()
{
- int N = FindString(s) ;
+ wxWindow::OnInternalIdle();
- if ( N >= 0 )
- SetFirstItem(N) ;
+ if (m_updateHorizontalExtent)
+ {
+ SetHorizontalExtent(wxEmptyString);
+ m_updateHorizontalExtent = false;
+ }
}
-void wxListBox::Delete(int N)
+void wxListBox::MSWOnItemsChanged()
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
- "invalid index in wxListBox::Delete" );
+ // we need to do two things when items change: update their max horizontal
+ // extent so that horizontal scrollbar could be shown or hidden as
+ // appropriate and also invlaidate the best size
+ //
+ // updating the max extent is slow (it's an O(N) operation) and so we defer
+ // it until the idle time but the best size should be invalidated
+ // immediately doing it in idle time is too late -- layout using incorrect
+ // old best size will have been already done by then
- SendMessage(hwnd, LB_DELETESTRING, N, 0);
- m_noItems--;
+ m_updateHorizontalExtent = true;
- SetHorizontalExtent("");
+ InvalidateBestSize();
}
-void wxListBox::Append(const wxString& item)
-{
- int index = ListBox_AddString(hwnd, item);
- m_noItems ++;
+// ----------------------------------------------------------------------------
+// implementation of wxListBoxBase methods
+// ----------------------------------------------------------------------------
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW ) {
- wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument
- pNewItem->SetName(item);
- m_aItems.Add(pNewItem);
- ListBox_SetItemData(hwnd, index, pNewItem);
- }
-#endif
+void wxListBox::DoSetFirstItem(int N)
+{
+ wxCHECK_RET( IsValid(N),
+ wxT("invalid index in wxListBox::SetFirstItem") );
- SetHorizontalExtent(item);
+ SendMessage(GetHwnd(), LB_SETTOPINDEX, (WPARAM)N, (LPARAM)0);
}
-void wxListBox::Append(const wxString& item, char *Client_data)
+void wxListBox::DoDeleteOneItem(unsigned int n)
{
- int index = ListBox_AddString(hwnd, item);
- m_noItems ++;
+ wxCHECK_RET( IsValid(n),
+ wxT("invalid index in wxListBox::Delete") );
#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW ) {
- // client data must be pointer to wxOwnerDrawn, otherwise we would crash
- // in OnMeasure/OnDraw.
- wxFAIL_MSG("Can't use client data with owner-drawn listboxes");
- }
- else
-#endif
-
- ListBox_SetItemData(hwnd, index, Client_data);
-
- SetHorizontalExtent(item);
-}
-
-void wxListBox::Set(int n, const wxString *choices, char** clientData)
-{
- ShowWindow(hwnd, SW_HIDE);
- ListBox_ResetContent(hwnd);
- int i;
- for (i = 0; i < n; i++)
+ if ( HasFlag(wxLB_OWNERDRAW) )
{
- ListBox_AddString(hwnd, choices[i]);
- if ( clientData )
- ListBox_SetItemData(hwnd, i, clientData[i]);
+ delete m_aItems[n];
+ m_aItems.RemoveAt(n);
}
- m_noItems = n;
+#endif // wxUSE_OWNER_DRAWN
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW ) {
- // first delete old items
- size_t ui = m_aItems.Count();
- while ( ui-- != 0 ) {
- delete m_aItems[ui];
- }
- m_aItems.Empty();
+ SendMessage(GetHwnd(), LB_DELETESTRING, n, 0);
+ m_noItems--;
- // then create new ones
- for (ui = 0; ui < (size_t)n; ui++) {
- wxOwnerDrawn *pNewItem = CreateItem(ui);
- pNewItem->SetName(choices[ui]);
- m_aItems.Add(pNewItem);
- ListBox_SetItemData(hwnd, ui, pNewItem);
+ MSWOnItemsChanged();
- wxASSERT_MSG(clientData[ui] == NULL,
- "Can't use client data with owner-drawn listboxes");
- }
- }
-#endif
-
- SetHorizontalExtent("");
- ShowWindow(hwnd, SW_SHOW);
+ UpdateOldSelections();
}
-int wxListBox::FindString(const wxString& s) const
+int wxListBox::FindString(const wxString& s, bool bCase) const
{
- int pos = ListBox_FindStringExact(hwnd, (WPARAM)-1, s);
+ // back to base class search for not native search type
+ if (bCase)
+ return wxItemContainerImmutable::FindString( s, bCase );
+
+ int pos = ListBox_FindStringExact(GetHwnd(), -1, s.wx_str());
if (pos == LB_ERR)
- return -1;
+ return wxNOT_FOUND;
else
return pos;
}
-void wxListBox::Clear()
+void wxListBox::DoClear()
{
- ListBox_ResetContent(hwnd);
-
#if wxUSE_OWNER_DRAWN
- size_t uiCount = m_aItems.Count();
- while ( uiCount-- != 0 ) {
- delete m_aItems[uiCount];
+ if ( HasFlag(wxLB_OWNERDRAW) )
+ {
+ WX_CLEAR_ARRAY(m_aItems);
}
-
- m_aItems.Clear();
#endif // wxUSE_OWNER_DRAWN
+ ListBox_ResetContent(GetHwnd());
+
m_noItems = 0;
- ListBox_GetHorizontalExtent(hwnd);
+ MSWOnItemsChanged();
+
+ UpdateOldSelections();
}
-void wxListBox::SetSelection(int N, bool select)
+void wxListBox::DoSetSelection(int N, bool select)
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
- "invalid index in wxListBox::SetSelection" );
+ wxCHECK_RET( N == wxNOT_FOUND || IsValid(N),
+ wxT("invalid index in wxListBox::SetSelection") );
- if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
- SendMessage(hwnd, LB_SETSEL, select, N);
+ if ( HasMultipleSelection() )
+ {
+ // Setting selection to -1 should deselect everything.
+ const bool deselectAll = N == wxNOT_FOUND;
+ SendMessage(GetHwnd(), LB_SETSEL,
+ deselectAll ? FALSE : select,
+ deselectAll ? -1 : N);
+ }
else
{
- int N1 = N;
- if (!select)
- N1 = -1;
- SendMessage(hwnd, LB_SETCURSEL, N1, 0);
+ SendMessage(GetHwnd(), LB_SETCURSEL, select ? N : -1, 0);
}
-}
-bool wxListBox::Selected(int N) const
-{
- wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
- "invalid index in wxListBox::Selected" );
-
- return SendMessage(hwnd, LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
+ UpdateOldSelections();
}
-void wxListBox::Deselect(int N)
+bool wxListBox::IsSelected(int N) const
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
- "invalid index in wxListBox::Deselect" );
+ wxCHECK_MSG( IsValid(N), false,
+ wxT("invalid index in wxListBox::Selected") );
- if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
- SendMessage(hwnd, LB_SETSEL, FALSE, N);
+ return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? false : true;
}
-char *wxListBox::GetClientData(int N) const
+void *wxListBox::DoGetItemClientData(unsigned int n) const
{
- wxCHECK_MSG( N >= 0 && N < m_noItems, NULL,
- "invalid index in wxListBox::GetClientData" );
-
- return (char *)SendMessage(hwnd, LB_GETITEMDATA, N, 0);
+ return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0);
}
-void wxListBox::SetClientData(int N, char *Client_data)
+void wxListBox::DoSetItemClientData(unsigned int n, void *clientData)
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
- "invalid index in wxListBox::SetClientData" );
-
- if ( ListBox_SetItemData(hwnd, N, Client_data) == LB_ERR )
- wxLogDebug("LB_SETITEMDATA failed");
+ if ( ListBox_SetItemData(GetHwnd(), n, clientData) == LB_ERR )
+ {
+ wxLogDebug(wxT("LB_SETITEMDATA failed"));
+ }
}
// Return number of selections and an array of selected integers
{
aSelections.Empty();
- if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
+ if ( HasMultipleSelection() )
{
- int no_sel = ListBox_GetSelCount(hwnd);
- if (no_sel != 0) {
- int *selections = new int[no_sel];
- if ( ListBox_GetSelItems(hwnd, no_sel, selections) == LB_ERR ) {
- wxFAIL_MSG("This listbox can't have single-selection style!");
- }
+ int countSel = ListBox_GetSelCount(GetHwnd());
+ if ( countSel == LB_ERR )
+ {
+ wxLogDebug(wxT("ListBox_GetSelCount failed"));
+ }
+ else if ( countSel != 0 )
+ {
+ int *selections = new int[countSel];
- aSelections.Alloc(no_sel);
- for ( int n = 0; n < no_sel; n++ )
- aSelections.Add(selections[n]);
+ if ( ListBox_GetSelItems(GetHwnd(),
+ countSel, selections) == LB_ERR )
+ {
+ wxLogDebug(wxT("ListBox_GetSelItems failed"));
+ countSel = -1;
+ }
+ else
+ {
+ aSelections.Alloc(countSel);
+ for ( int n = 0; n < countSel; n++ )
+ aSelections.Add(selections[n]);
+ }
delete [] selections;
}
- return no_sel;
+ return countSel;
}
else // single-selection listbox
{
- aSelections.Add(ListBox_GetCurSel(hwnd));
+ if (ListBox_GetCurSel(GetHwnd()) > -1)
+ aSelections.Add(ListBox_GetCurSel(GetHwnd()));
- return 1;
+ return aSelections.Count();
}
}
// Get single selection, for single choice list items
int wxListBox::GetSelection() const
{
- wxCHECK_MSG( !(m_windowStyle & wxLB_MULTIPLE) &&
- !(m_windowStyle & wxLB_EXTENDED),
+ wxCHECK_MSG( !HasMultipleSelection(),
-1,
- "GetSelection() can't be used with multiple-selection "
- "listboxes, use GetSelections() instead." );
+ wxT("GetSelection() can't be used with multiple-selection listboxes, use GetSelections() instead.") );
- return ListBox_GetCurSel(hwnd);
+ return ListBox_GetCurSel(GetHwnd());
}
// Find string for position
-wxString wxListBox::GetString(int N) const
+wxString wxListBox::GetString(unsigned int n) const
{
- wxCHECK_MSG( N >= 0 && N < m_noItems, "",
- "invalid index in wxListBox::GetClientData" );
+ wxCHECK_MSG( IsValid(n), wxEmptyString,
+ wxT("invalid index in wxListBox::GetString") );
- int len = ListBox_GetTextLen(hwnd, N);
+ int len = ListBox_GetTextLen(GetHwnd(), n);
// +1 for terminating NUL
wxString result;
- ListBox_GetText(hwnd, N, result.GetWriteBuf(len + 1));
- result.UngetWriteBuf();
+ ListBox_GetText(GetHwnd(), n, (wxChar*)wxStringBuffer(result, len + 1));
return result;
}
-void wxListBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
+int wxListBox::DoInsertItems(const wxArrayStringsAdapter & items,
+ unsigned int pos,
+ void **clientData,
+ wxClientDataType type)
{
- int currentX, currentY;
- GetPosition(¤tX, ¤tY);
+ MSWAllocStorage(items, LB_INITSTORAGE);
- int x1 = x;
- int y1 = y;
- int w1 = width;
- int h1 = height;
+ const bool append = pos == GetCount();
- if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
- x1 = currentX;
- if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
- y1 = currentY;
+ // we must use CB_ADDSTRING when appending as only it works correctly for
+ // the sorted controls
+ const unsigned msg = append ? LB_ADDSTRING : LB_INSERTSTRING;
- AdjustForParentClientOrigin(x1, y1, sizeFlags);
+ if ( append )
+ pos = 0;
- // If we're prepared to use the existing size, then...
- if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
+ int n = wxNOT_FOUND;
+
+ const unsigned int numItems = items.GetCount();
+ for ( unsigned int i = 0; i < numItems; i++ )
{
- GetSize(&w1, &h1);
+ n = MSWInsertOrAppendItem(pos, items[i], msg);
+ if ( n == wxNOT_FOUND )
+ return n;
+
+ if ( !append )
+ pos++;
+
+ ++m_noItems;
+
+#if wxUSE_OWNER_DRAWN
+ if ( HasFlag(wxLB_OWNERDRAW) )
+ {
+ wxOwnerDrawn *pNewItem = CreateLboxItem(n);
+ pNewItem->SetFont(GetFont());
+ m_aItems.Insert(pNewItem, n);
+ }
+#endif // wxUSE_OWNER_DRAWN
+ AssignNewItemClientData(n, clientData, i, type);
}
- int cx; // button font dimensions
- int cy;
+ MSWOnItemsChanged();
+
+ UpdateOldSelections();
+
+ return n;
+}
- wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont());
+int wxListBox::DoHitTestList(const wxPoint& point) const
+{
+ LRESULT lRes = ::SendMessage(GetHwnd(), LB_ITEMFROMPOINT,
+ 0, MAKELPARAM(point.x, point.y));
- float control_width, control_height, control_x, control_y;
+ // non zero high-order word means that this item is outside of the client
+ // area, IOW the point is outside of the listbox
+ return HIWORD(lRes) ? wxNOT_FOUND : LOWORD(lRes);
+}
- // Deal with default size (using -1 values)
- if (w1<=0)
- w1 = DEFAULT_ITEM_WIDTH;
+void wxListBox::SetString(unsigned int n, const wxString& s)
+{
+ wxCHECK_RET( IsValid(n),
+ wxT("invalid index in wxListBox::SetString") );
- if (h1<=0)
- h1 = DEFAULT_ITEM_HEIGHT;
+ // remember the state of the item
+ bool wasSelected = IsSelected(n);
- control_x = (float)x1;
- control_y = (float)y1;
- control_width = (float)w1;
- control_height = (float)h1;
+ void *oldData = NULL;
+ wxClientData *oldObjData = NULL;
+ if ( HasClientUntypedData() )
+ oldData = GetClientData(n);
+ else if ( HasClientObjectData() )
+ oldObjData = GetClientObject(n);
+
+ // delete and recreate it
+ SendMessage(GetHwnd(), LB_DELETESTRING, n, 0);
+
+ int newN = n;
+ if ( n == (m_noItems - 1) )
+ newN = -1;
- // Calculations may have made size too small
- if (control_height <= 0)
- control_height = (float)DEFAULT_ITEM_HEIGHT;
+ ListBox_InsertString(GetHwnd(), newN, s.wx_str());
- if (control_width <= 0)
- control_width = (float)DEFAULT_ITEM_WIDTH;
+ // restore the client data
+ if ( oldData )
+ SetClientData(n, oldData);
+ else if ( oldObjData )
+ SetClientObject(n, oldObjData);
- MoveWindow(hwnd,
- (int)control_x, (int)control_y,
- (int)control_width, (int)control_height,
- TRUE);
+ // we may have lost the selection
+ if ( wasSelected )
+ Select(n);
+ MSWOnItemsChanged();
}
-// Windows-specific code to set the horizontal extent of
-// the listbox, if necessary. If s is non-NULL, it's
-// used to calculate the horizontal extent.
-// Otherwise, all strings are used.
+unsigned int wxListBox::GetCount() const
+{
+ return m_noItems;
+}
+
+// ----------------------------------------------------------------------------
+// size-related stuff
+// ----------------------------------------------------------------------------
+
void wxListBox::SetHorizontalExtent(const wxString& s)
{
- // Only necessary if we want a horizontal scrollbar
- if (!(m_windowStyle & wxHSCROLL))
+ // the rest is only necessary if we want a horizontal scrollbar
+ if ( !HasFlag(wxHSCROLL) )
return;
- TEXTMETRIC lpTextMetric;
- if (s != "")
- {
- int existingExtent = (int)SendMessage(hwnd, LB_GETHORIZONTALEXTENT, 0, 0L);
- HDC dc = GetWindowDC(hwnd);
- HFONT oldFont = 0;
- if (GetFont().Ok() && GetFont().GetResourceHandle())
- oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
-
- GetTextMetrics(dc, &lpTextMetric);
- SIZE extentXY;
- ::GetTextExtentPoint(dc, (LPSTR) (const char *)s, s.Length(), &extentXY);
- int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
- if (oldFont)
- ::SelectObject(dc, oldFont);
+ WindowHDC dc(GetHwnd());
+ SelectInHDC selFont(dc, GetHfontOf(GetFont()));
- ReleaseDC(hwnd, dc);
- if (extentX > existingExtent)
- SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
- return;
- }
- else
+ TEXTMETRIC lpTextMetric;
+ ::GetTextMetrics(dc, &lpTextMetric);
+
+ int largestExtent = 0;
+ SIZE extentXY;
+
+ if ( s.empty() )
{
- int largestExtent = 0;
- HDC dc = GetWindowDC(hwnd);
- HFONT oldFont = 0;
- if (GetFont().Ok() && GetFont().GetResourceHandle())
- oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
-
- GetTextMetrics(dc, &lpTextMetric);
- int i;
- for (i = 0; i < m_noItems; i++)
+ // set extent to the max length of all strings
+ for ( unsigned int i = 0; i < m_noItems; i++ )
{
- int len = (int)SendMessage(hwnd, LB_GETTEXT, i, (LONG)wxBuffer);
- wxBuffer[len] = 0;
- SIZE extentXY;
- ::GetTextExtentPoint(dc, (LPSTR)wxBuffer, len, &extentXY);
+ const wxString str = GetString(i);
+ ::GetTextExtentPoint32(dc, str.c_str(), str.length(), &extentXY);
+
int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
- if (extentX > largestExtent)
+ if ( extentX > largestExtent )
largestExtent = extentX;
}
- if (oldFont)
- ::SelectObject(dc, oldFont);
+ }
+ else // just increase the extent to the length of this string
+ {
+ int existingExtent = (int)SendMessage(GetHwnd(),
+ LB_GETHORIZONTALEXTENT, 0, 0L);
+
+ ::GetTextExtentPoint32(dc, s.c_str(), s.length(), &extentXY);
- ReleaseDC(hwnd, dc);
- SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
+ int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
+ if ( extentX > existingExtent )
+ largestExtent = extentX;
}
+
+ if ( largestExtent )
+ SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
+ //else: it shouldn't change
}
-void
-wxListBox::InsertItems(int nItems, const wxString items[], int pos)
+wxSize wxListBox::DoGetBestClientSize() const
{
- wxCHECK_RET( pos >= 0 && pos <= m_noItems,
- "invalid index in wxListBox::InsertItems" );
+ // find the widest string
+ int wLine;
+ int wListbox = 0;
+ for (unsigned int i = 0; i < m_noItems; i++)
+ {
+ wxString str(GetString(i));
+ GetTextExtent(str, &wLine, NULL);
+ if ( wLine > wListbox )
+ wListbox = wLine;
+ }
+
+ // give it some reasonable default value if there are no strings in the
+ // list
+ if ( wListbox == 0 )
+ wListbox = 100;
+
+ // the listbox should be slightly larger than the widest string
+ wListbox += 3*GetCharWidth();
- int i;
- for (i = 0; i < nItems; i++)
- ListBox_InsertString(hwnd, i + pos, items[i]);
- m_noItems += nItems;
+ // add room for the scrollbar
+ wListbox += wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
- SetHorizontalExtent("");
+ // don't make the listbox too tall (limit height to 10 items) but don't
+ // make it too small neither
+ int hListbox = SendMessage(GetHwnd(), LB_GETITEMHEIGHT, 0, 0)*
+ wxMin(wxMax(m_noItems, 3), 10);
+
+ return wxSize(wListbox, hListbox);
}
-void wxListBox::SetString(int N, const wxString& s)
-{
- wxCHECK_RET( N >= 0 && N < m_noItems,
- "invalid index in wxListBox::SetString" );
+// ----------------------------------------------------------------------------
+// callbacks
+// ----------------------------------------------------------------------------
- int sel = -1;
- if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED))
- sel = GetSelection();
+bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+{
+ wxEventType evtType;
+ int n = wxNOT_FOUND;
+ if ( param == LBN_SELCHANGE )
+ {
+ if ( HasMultipleSelection() )
+ return CalcAndSendEvent();
- char *oldData = (char *)wxListBox::GetClientData(N);
+ evtType = wxEVT_COMMAND_LISTBOX_SELECTED;
- SendMessage(hwnd, LB_DELETESTRING, N, 0);
+ if ( m_selectedByKeyboard )
+ {
+ // We shouldn't use the mouse position to find the item as mouse
+ // can be anywhere, ask the listbox itself. Notice that this can't
+ // be used when the item is selected using the mouse however as
+ // LB_GETCARETINDEX will always return a valid item, even if the
+ // mouse is clicked below all the items, which is why we find the
+ // item ourselves below in this case.
+ n = SendMessage(GetHwnd(), LB_GETCARETINDEX, 0, 0);
+ }
+ //else: n will be determined below from the mouse position
+ }
+ else if ( param == LBN_DBLCLK )
+ {
+ evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED;
+ }
+ else
+ {
+ // some event we're not interested in
+ return false;
+ }
- int newN = N;
- if (N == (m_noItems - 1))
- newN = -1;
+ // Find the item position if it was a mouse-generated selection event or a
+ // double click event (which is always generated using the mouse)
+ if ( n == wxNOT_FOUND )
+ {
+ const DWORD pos = ::GetMessagePos();
+ const wxPoint pt(GET_X_LPARAM(pos), GET_Y_LPARAM(pos));
+ n = HitTest(ScreenToClient(wxPoint(pt)));
+ }
- SendMessage(hwnd, LB_INSERTSTRING, newN, (LPARAM) (const char *)s);
- if (oldData)
- wxListBox::SetClientData(N, oldData);
+ // We get events even when mouse is clicked outside of any valid item from
+ // Windows, just ignore them.
+ if ( n == wxNOT_FOUND )
+ return false;
- // Selection may have changed
- if (sel >= 0)
- SetSelection(sel);
+ if ( param == LBN_SELCHANGE )
+ {
+ if ( !DoChangeSingleSelection(n) )
+ return false;
+ }
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW )
- // update item's text
- m_aItems[N]->SetName(s);
-#endif //USE_OWNER_DRAWN
+ // Do generate an event otherwise.
+ return SendEvent(evtType, n, true /* selection */);
}
-int wxListBox::Number () const
+WXLRESULT
+wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
- return m_noItems;
-}
+ // Remember whether there was a keyboard or mouse event before
+ // LBN_SELCHANGE: this allows us to correctly determine the item affected
+ // by it in MSWCommand() above in any case.
+ if ( WM_KEYFIRST <= nMsg && nMsg <= WM_KEYLAST )
+ m_selectedByKeyboard = true;
+ else if ( WM_MOUSEFIRST <= nMsg && nMsg <= WM_MOUSELAST )
+ m_selectedByKeyboard = false;
-// For single selection items only
-wxString wxListBox::GetStringSelection () const
-{
- int sel = GetSelection ();
- if (sel > -1)
- return this->GetString (sel);
- else
- return wxString("");
+ return wxListBoxBase::MSWWindowProc(nMsg, wParam, lParam);
}
-bool wxListBox::SetStringSelection (const wxString& s, bool flag)
+// ----------------------------------------------------------------------------
+// owner-drawn list boxes support
+// ----------------------------------------------------------------------------
+
+#if wxUSE_OWNER_DRAWN
+
+// misc overloaded methods
+// -----------------------
+
+bool wxListBox::SetFont(const wxFont &font)
{
- int sel = FindString (s);
- if (sel > -1)
+ if ( HasFlag(wxLB_OWNERDRAW) )
{
- SetSelection (sel, flag);
- return TRUE;
+ const unsigned count = m_aItems.GetCount();
+ for ( unsigned i = 0; i < count; i++ )
+ m_aItems[i]->SetFont(font);
}
- else
- return FALSE;
+
+ wxListBoxBase::SetFont(font);
+
+ return true;
}
-// Is this the right thing? Won't setselection generate a command
-// event too? No! It'll just generate a setselection event.
-// But we still can't have this being called whenever a real command
-// is generated, because it sets the selection, which will already
-// have been done! (Unless we have an optional argument for calling
-// by the actual window system, or a separate function, ProcessCommand)
-void wxListBox::Command (wxCommandEvent & event)
+bool wxListBox::GetItemRect(size_t n, wxRect& rect) const
{
- if (event.m_extraLong)
- SetSelection (event.m_commandInt);
+ wxCHECK_MSG( IsValid(n), false,
+ wxT("invalid index in wxListBox::GetItemRect") );
+
+ RECT rc;
+
+ if ( ListBox_GetItemRect(GetHwnd(), n, &rc) != LB_ERR )
+ {
+ rect = wxRectFromRECT(rc);
+ return true;
+ }
else
{
- Deselect (event.m_commandInt);
- return;
+ // couldn't retrieve rect: for example, item isn't visible
+ return false;
}
- ProcessCommand (event);
}
-WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
- WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
+bool wxListBox::RefreshItem(size_t n)
{
-#if wxUSE_CTL3D
- if ( m_useCtl3D )
- {
- HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
- return (WXHBRUSH) hbrush;
- }
-#endif
-
- if (GetParent()->GetTransparentBackground())
- SetBkMode((HDC) pDC, TRANSPARENT);
- else
- SetBkMode((HDC) pDC, OPAQUE);
-
- ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
- ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
+ wxRect rect;
+ if ( !GetItemRect(n, rect) )
+ return false;
- wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+ RECT rc;
+ wxCopyRectToRECT(rect, rc);
- // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
- // has a zero usage count.
- backgroundBrush->RealizeResource();
- return (WXHBRUSH) backgroundBrush->GetResourceHandle();
+ return ::InvalidateRect((HWND)GetHWND(), &rc, FALSE) == TRUE;
}
-long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
-{
- return wxControl::MSWWindowProc(nMsg, wParam, lParam);
-}
-
-#if wxUSE_OWNER_DRAWN
// drawing
// -------
-// space beneath/above each row in pixels
-// "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly.
-#define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1)
+namespace
+{
+ // space beneath/above each row in pixels
+ static const int LISTBOX_EXTRA_SPACE = 1;
+
+} // anonymous namespace
// the height is the same for all items
// TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes
bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
{
// only owner-drawn control should receive this message
- wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+ wxCHECK( HasFlag(wxLB_OWNERDRAW), false );
MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
- wxDC dc;
- dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0));
- dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
+#ifdef __WXWINCE__
+ HDC hdc = GetDC(NULL);
+#else
+ HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0);
+#endif
- pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
- pStruct->itemWidth = dc.GetCharWidth();
+ {
+ wxDCTemp dc((WXHDC)hdc);
+ dc.SetFont(GetFont());
+
+ pStruct->itemHeight = dc.GetCharHeight() + 2 * LISTBOX_EXTRA_SPACE;
+ pStruct->itemWidth = dc.GetCharWidth();
+ }
- return TRUE;
+#ifdef __WXWINCE__
+ ReleaseDC(NULL, hdc);
+#else
+ DeleteDC(hdc);
+#endif
+
+ return true;
}
// forward the message to the appropriate item
bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
{
// only owner-drawn control should receive this message
- wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+ wxCHECK( HasFlag(wxLB_OWNERDRAW), false );
DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
- long data = ListBox_GetItemData(hwnd, pStruct->itemID);
-
- wxCHECK( data && (data != LB_ERR), FALSE );
+ // the item may be -1 for an empty listbox
+ if ( pStruct->itemID == (UINT)-1 )
+ return false;
- wxListBoxItem *pItem = (wxListBoxItem *)data;
+ wxListBoxItem *pItem = (wxListBoxItem *)m_aItems[pStruct->itemID];
- wxDC dc;
- dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
- wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top),
- wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom));
+ wxDCTemp dc((WXHDC)pStruct->hDC);
- return pItem->OnDrawItem(dc, rect,
- (wxOwnerDrawn::wxODAction)pStruct->itemAction,
- (wxOwnerDrawn::wxODStatus)pStruct->itemState);
+ return pItem->OnDrawItem(dc, wxRectFromRECT(pStruct->rcItem),
+ (wxOwnerDrawn::wxODAction)pStruct->itemAction,
+ (wxOwnerDrawn::wxODStatus)(pStruct->itemState | wxOwnerDrawn::wxODHidePrefix));
}
-#endif
- // wxUSE_OWNER_DRAWN
+#endif // wxUSE_OWNER_DRAWN
+
+#endif // wxUSE_LISTBOX
projects / wxWidgets.git / blobdiff