/////////////////////////////////////////////////////////////////////////////
-// Name: univ/listbox.cpp
+// Name: src/univ/listbox.cpp
// Purpose: wxListBox implementation
// Author: Vadim Zeitlin
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "univlistbox.h"
-#endif
-
#include "wx/wxprec.h"
#ifdef __BORLANDC__
BEGIN_EVENT_TABLE(wxListBox, wxListBoxBase)
EVT_SIZE(wxListBox::OnSize)
-
- EVT_IDLE(wxListBox::OnIdle)
END_EVENT_TABLE()
// ----------------------------------------------------------------------------
m_maxWidth = 0;
m_scrollRangeY = 0;
m_maxWidthItem = -1;
+ m_strings = NULL;
// no items hence no current item
m_current = -1;
m_selAnchor = -1;
- m_currentChanged = FALSE;
+ m_currentChanged = false;
// no need to update anything initially
m_updateCount = 0;
m_updateScrollbarX =
m_showScrollbarX =
m_updateScrollbarY =
- m_showScrollbarY = FALSE;
+ m_showScrollbarY = false;
+}
+
+wxListBox::wxListBox(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint &pos,
+ const wxSize &size,
+ const wxArrayString& choices,
+ long style,
+ const wxValidator& validator,
+ const wxString &name)
+ :wxScrollHelper(this)
+{
+ Init();
+
+ Create(parent, id, pos, size, choices, style, validator, name);
+}
+
+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);
}
bool wxListBox::Create(wxWindow *parent,
if ( !(style & (wxLB_MULTIPLE | wxLB_EXTENDED)) )
style |= wxLB_SINGLE;
- if ( !wxControl::Create(parent, id, pos, size, style, wxDefaultValidator, name) )
- return FALSE;
+#if wxUSE_TWO_WINDOWS
+ style |= wxVSCROLL|wxHSCROLL;
+ if ((style & wxBORDER_MASK) == 0)
+ style |= wxBORDER_SUNKEN;
+#endif
- SetWindow(this);
+ if ( !wxControl::Create(parent, id, pos, size, style,
+ validator, name) )
+ return false;
- if ( style & wxLB_SORT )
- m_strings = wxArrayString(TRUE /* auto sort */);
+ m_strings = new wxArrayString;
Set(n, choices);
CreateInputHandler(wxINP_HANDLER_LISTBOX);
- return TRUE;
+ return true;
}
wxListBox::~wxListBox()
{
+ // call this just to free the client data -- and avoid leaking memory
+ DoClear();
+
+ delete m_strings;
+
+ m_strings = NULL;
}
// ----------------------------------------------------------------------------
// adding/inserting strings
// ----------------------------------------------------------------------------
+int wxCMPFUNC_CONV wxListBoxSortNoCase(wxString* s1, wxString* s2)
+{
+ return s1->CmpNoCase(*s2);
+}
+
+int wxListBox::DoAppendOnly(const wxString& item)
+{
+ unsigned int index;
+
+ if ( IsSorted() )
+ {
+ m_strings->Add(item);
+ m_strings->Sort(wxListBoxSortNoCase);
+ index = m_strings->Index(item);
+ }
+ else
+ {
+ index = m_strings->GetCount();
+ m_strings->Add(item);
+ }
+
+ return index;
+}
+
int wxListBox::DoAppend(const wxString& item)
{
- size_t index = m_strings.Add(item);
+ size_t index = DoAppendOnly( item );
+
m_itemsClientData.Insert(NULL, index);
- m_updateScrollbarY = TRUE;
+ m_updateScrollbarY = true;
if ( HasHorzScrollbar() )
{
{
m_maxWidth = width;
m_maxWidthItem = index;
- m_updateScrollbarX = TRUE;
+ m_updateScrollbarX = true;
}
}
return index;
}
-void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
+void wxListBox::DoInsertItems(const wxArrayString& items, unsigned int pos)
{
// the position of the item being added to a sorted listbox can't be
// specified
wxCHECK_RET( !IsSorted(), _T("can't insert items into sorted listbox") );
- size_t count = items.GetCount();
- for ( size_t n = 0; n < count; n++ )
+ unsigned int count = items.GetCount();
+ for ( unsigned int n = 0; n < count; n++ )
{
- m_strings.Insert(items[n], pos + n);
+ m_strings->Insert(items[n], pos + n);
m_itemsClientData.Insert(NULL, pos + n);
}
// the number of items has changed so we might have to show the scrollbar
- m_updateScrollbarY = TRUE;
+ m_updateScrollbarY = true;
// the max width also might have changed - just recalculate it instead of
// keeping track of it here, this is probably more efficient for a typical
{
DoClear();
- size_t count = items.GetCount();
+ unsigned int count = items.GetCount();
if ( !count )
return;
- m_strings.Alloc(count);
+ m_strings->Alloc(count);
+
m_itemsClientData.Alloc(count);
- for ( size_t n = 0; n < count; n++ )
+ for ( unsigned int n = 0; n < count; n++ )
{
- size_t index = m_strings.Add(items[n]);
+ unsigned int index = DoAppendOnly(items[n]);
+
m_itemsClientData.Insert(clientData ? clientData[n] : NULL, index);
}
- m_updateScrollbarY = TRUE;
+ m_updateScrollbarY = true;
RefreshAll();
}
-void wxListBox::SetString(int n, const wxString& s)
+void wxListBox::SetString(unsigned int n, const wxString& s)
{
+ wxCHECK_RET( !IsSorted(), _T("can't set string in sorted listbox") );
+
+ (*m_strings)[n] = s;
+
if ( HasHorzScrollbar() )
{
// we need to update m_maxWidth as changing the string may cause the
// horz scrollbar [dis]appear
wxCoord width;
- m_strings[n] = s;
+
GetTextExtent(s, &width, NULL);
// it might have increased if the new string is long
{
m_maxWidth = width;
m_maxWidthItem = n;
- m_updateScrollbarX = TRUE;
+ m_updateScrollbarX = true;
}
// or also decreased if the old string was the longest one
- else if ( n == m_maxWidthItem )
+ else if ( n == (unsigned int)m_maxWidthItem )
{
RefreshHorzScrollbar();
}
}
- else // no horz scrollbar
- {
- m_strings[n] = s;
- }
RefreshItem(n);
}
void wxListBox::DoClear()
{
- m_strings.Clear();
+ m_strings->Clear();
if ( HasClientObjectData() )
{
- size_t count = m_itemsClientData.GetCount();
- for ( size_t n = 0; n < count; n++ )
+ unsigned int count = m_itemsClientData.GetCount();
+ for ( unsigned int n = 0; n < count; n++ )
{
delete (wxClientData *) m_itemsClientData[n];
}
{
DoClear();
- m_updateScrollbarY = TRUE;
+ m_updateScrollbarY = true;
RefreshHorzScrollbar();
RefreshAll();
}
-void wxListBox::Delete(int n)
+void wxListBox::Delete(unsigned int n)
{
- wxCHECK_RET( n < GetCount(), _T("invalid index in wxListBox::Delete") );
+ wxCHECK_RET( IsValid(n),
+ _T("invalid index in wxListBox::Delete") );
// do it before removing the index as otherwise the last item will not be
// refreshed (as GetCount() will be decremented)
RefreshFromItemToEnd(n);
- m_strings.RemoveAt(n);
+ m_strings->RemoveAt(n);
if ( HasClientObjectData() )
{
m_itemsClientData.RemoveAt(n);
// when the item disappears we must not keep using its index
- if ( n == m_current )
+ if ( (int)n == m_current )
{
m_current = -1;
}
- else if ( n < m_current )
+ else if ( (int)n < m_current )
{
m_current--;
}
// update the selections array: the indices of all seletected items after
// the one being deleted must change and the item itselfm ust be removed
int index = wxNOT_FOUND;
- size_t count = m_selections.GetCount();
- for ( size_t item = 0; item < count; item++ )
+ unsigned int count = m_selections.GetCount();
+ for ( unsigned int item = 0; item < count; item++ )
{
- if ( m_selections[item] == n )
+ if ( m_selections[item] == (int)n )
{
// remember to delete it later
index = item;
}
- else if ( m_selections[item] > n )
+ else if ( m_selections[item] > (int)n )
{
// to account for the index shift
m_selections[item]--;
}
// the number of items has changed, hence the scrollbar may disappear
- m_updateScrollbarY = TRUE;
+ m_updateScrollbarY = true;
// finally, if the longest item was deleted the scrollbar may disappear
- if ( n == m_maxWidthItem )
+ if ( (int)n == m_maxWidthItem )
{
RefreshHorzScrollbar();
}
// client data handling
// ----------------------------------------------------------------------------
-void wxListBox::DoSetItemClientData(int n, void* clientData)
+void wxListBox::DoSetItemClientData(unsigned int n, void* clientData)
{
m_itemsClientData[n] = clientData;
}
-void *wxListBox::DoGetItemClientData(int n) const
+void *wxListBox::DoGetItemClientData(unsigned int n) const
{
return m_itemsClientData[n];
}
-void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData)
+void wxListBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
{
m_itemsClientData[n] = clientData;
}
-wxClientData* wxListBox::DoGetItemClientObject(int n) const
+wxClientData* wxListBox::DoGetItemClientObject(unsigned int n) const
{
return (wxClientData *)m_itemsClientData[n];
}
// selection
// ----------------------------------------------------------------------------
-void wxListBox::SetSelection(int n, bool select)
+void wxListBox::DoSetSelection(int n, bool select)
{
if ( select )
{
int wxListBox::GetSelection() const
{
- wxCHECK_MSG( !HasMultipleSelection(), -1,
+ wxCHECK_MSG( !HasMultipleSelection(), wxNOT_FOUND,
_T("use wxListBox::GetSelections for ths listbox") );
- return m_selections.IsEmpty() ? -1 : m_selections[0];
+ return m_selections.IsEmpty() ? wxNOT_FOUND : m_selections[0];
}
int wxCMPFUNC_CONV wxCompareInts(int *n, int *m)
{
// always return sorted array to the user
selections = m_selections;
- size_t count = m_selections.GetCount();
+ unsigned int count = m_selections.GetCount();
// don't call sort on an empty array
if ( count )
void wxListBox::RefreshHorzScrollbar()
{
m_maxWidth = 0; // recalculate it
- m_updateScrollbarX = TRUE;
+ m_updateScrollbarX = true;
}
void wxListBox::UpdateScrollbars()
wxSize size = GetClientSize();
// is our height enough to show all items?
- int nLines = GetCount();
+ unsigned int nLines = GetCount();
wxCoord lineHeight = GetLineHeight();
- bool showScrollbarY = nLines*lineHeight > size.y;
+ bool showScrollbarY = (int)nLines*lineHeight > size.y;
// check the width too if required
wxCoord charWidth, maxWidth;
else // never show it
{
charWidth = maxWidth = 0;
- showScrollbarX = FALSE;
+ showScrollbarX = false;
}
// what should be the scrollbar range now?
m_updateFrom, m_updateFrom + m_updateCount - 1,
rect.GetTop(), rect.GetBottom());
- Refresh(TRUE, &rect);
+ Refresh(true, &rect);
}
}
-void wxListBox::OnIdle(wxIdleEvent& event)
+void wxListBox::OnInternalIdle()
{
if ( m_updateScrollbarY || m_updateScrollbarX )
{
UpdateScrollbars();
m_updateScrollbarX =
- m_updateScrollbarY = FALSE;
+ m_updateScrollbarY = false;
}
if ( m_currentChanged )
{
DoEnsureVisible(m_current);
- m_currentChanged = FALSE;
+ m_currentChanged = false;
}
if ( m_updateCount )
m_updateCount = 0;
}
-
- event.Skip();
+ wxListBoxBase::OnInternalIdle();
}
// ----------------------------------------------------------------------------
// get the items which must be redrawn
wxCoord lineHeight = GetLineHeight();
- size_t itemFirst = yTop / lineHeight,
- itemLast = (yBottom + lineHeight - 1) / lineHeight,
- itemMax = m_strings.GetCount();
+ unsigned int itemFirst = yTop / lineHeight,
+ itemLast = (yBottom + lineHeight - 1) / lineHeight,
+ itemMax = m_strings->GetCount();
if ( itemFirst >= itemMax )
return;
bool wxListBox::SetFont(const wxFont& font)
{
if ( !wxControl::SetFont(font) )
- return FALSE;
+ return false;
CalcItemsPerPage();
RefreshAll();
- return TRUE;
+ return true;
}
void wxListBox::CalcItemsPerPage()
{
wxListBox *self = wxConstCast(this, wxListBox);
wxCoord width;
- size_t count = m_strings.GetCount();
- for ( size_t n = 0; n < count; n++ )
+ unsigned int count = m_strings->GetCount();
+ for ( unsigned int n = 0; n < count; n++ )
{
- GetTextExtent(m_strings[n], &width, NULL);
+ GetTextExtent(this->GetString(n), &width, NULL);
if ( width > m_maxWidth )
{
self->m_maxWidth = width;
// the scrollbars might [dis]appear
m_updateScrollbarX =
- m_updateScrollbarY = TRUE;
+ m_updateScrollbarY = true;
event.Skip();
}
height = ((height - hBorders + hLine - 1) / hLine)*hLine + hBorders;
}
- wxListBoxBase::DoSetSize(x, y, width, height);
+ wxListBoxBase::DoSetSize(x, y, width, height, sizeFlags);
}
wxSize wxListBox::DoGetBestClientSize() const
wxCoord width = 0,
height = 0;
- size_t count = m_strings.GetCount();
- for ( size_t n = 0; n < count; n++ )
+ unsigned int count = m_strings->GetCount();
+ for ( unsigned int n = 0; n < count; n++ )
{
wxCoord w,h;
- GetTextExtent(m_strings[n], &w, &h);
+ GetTextExtent(this->GetString(n), &w, &h);
if ( w > width )
width = w;
bool wxListBox::SendEvent(wxEventType type, int item)
{
- // don't generate select events while the mouse is captured, we will only
- // send them once it is released
- if ( (type == wxEVT_COMMAND_LISTBOX_SELECTED) && (GetCapture() == this) )
- return FALSE;
-
wxCommandEvent event(type, m_windowId);
event.SetEventObject(this);
event.SetString(GetString(item));
}
- event.m_commandInt = item;
+ event.SetInt(item);
return GetEventHandler()->ProcessEvent(event);
}
if ( m_current != -1 )
{
- m_currentChanged = TRUE;
+ m_currentChanged = true;
RefreshItem(m_current);
}
bool wxListBox::FindItem(const wxString& prefix, bool strictlyAfter)
{
- int count = GetCount();
- if ( !count )
+ unsigned int count = GetCount();
+ if ( count==0 )
{
// empty listbox, we can't find anything in it
- return FALSE;
+ return false;
}
// start either from the current item or from the next one if strictlyAfter
{
// the following line will set first correctly to 0 if there is no
// selection (m_current == -1)
- first = m_current == count - 1 ? 0 : m_current + 1;
+ first = m_current == (int)(count - 1) ? 0 : m_current + 1;
}
else // start with the current
{
int last = first == 0 ? count - 1 : first - 1;
// if this is not true we'd never exit from the loop below!
- wxASSERT_MSG( first < count && last < count, _T("logic error") );
+ wxASSERT_MSG( first < (int)count && last < (int)count, _T("logic error") );
// precompute it outside the loop
size_t len = prefix.length();
// loop over all items in the listbox
- for ( int item = first; item != last; item < count - 1 ? item++ : item = 0 )
+ for ( int item = first; item != (int)last; item < (int)(count - 1) ? item++ : item = 0 )
{
- if ( wxStrnicmp(m_strings[item], prefix, len) == 0 )
+ if ( wxStrnicmp(this->GetString(item).c_str(), prefix, len) == 0 )
{
SetCurrentItem(item);
AnchorSelection(item);
}
- return TRUE;
+ return true;
}
}
// nothing found
- return FALSE;
+ return false;
}
void wxListBox::EnsureVisible(int n)
UpdateScrollbars();
m_updateScrollbarX =
- m_updateScrollbarY = FALSE;
+ m_updateScrollbarY = false;
}
DoEnsureVisible(n);
SetSelection(n);
}
- int count = GetCount();
- for ( ; n < count; n++ )
+ unsigned int count = GetCount();
+ for ( ; n < (int)count; n++ )
{
Deselect(n);
}
}
-void wxListBox::Select(bool sel, int item)
+void wxListBox::DoSelect(int item, bool sel)
{
if ( item != -1 )
{
void wxListBox::SelectAndNotify(int item)
{
- Select(TRUE, item);
+ DoSelect(item);
SendEvent(wxEVT_COMMAND_LISTBOX_SELECTED);
}
if ( item != -1 )
{
- Select(TRUE, item);
+ DoSelect(item);
SendEvent(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED);
}
// input handling
// ----------------------------------------------------------------------------
+/*
+ The numArg here is the listbox item index while the strArg is used
+ differently for the different actions:
+
+ a) for wxACTION_LISTBOX_FIND it has the natural meaning: this is the string
+ to find
+
+ b) for wxACTION_LISTBOX_SELECT and wxACTION_LISTBOX_EXTENDSEL it is used
+ to decide if the listbox should send the notification event (it is empty)
+ or not (it is not): this allows us to reuse the same action for when the
+ user is dragging the mouse when it has been released although in the
+ first case no notification is sent while in the second it is sent.
+ */
bool wxListBox::PerformAction(const wxControlAction& action,
long numArg,
const wxString& strArg)
int item = (int)numArg;
if ( action == wxACTION_LISTBOX_SETFOCUS )
+ {
SetCurrentItem(item);
+ }
else if ( action == wxACTION_LISTBOX_ACTIVATE )
+ {
Activate(item);
+ }
else if ( action == wxACTION_LISTBOX_TOGGLE )
{
if ( item == -1 )
item = m_current;
if ( IsSelected(item) )
- Unselect(item);
+ DoUnselect(item);
else
SelectAndNotify(item);
}
else if ( action == wxACTION_LISTBOX_SELECT )
{
DeselectAll(item);
- SelectAndNotify(item);
+
+ if ( strArg.empty() )
+ SelectAndNotify(item);
+ else
+ DoSelect(item);
}
else if ( action == wxACTION_LISTBOX_SELECTADD )
- Select(TRUE, item);
+ DoSelect(item);
else if ( action == wxACTION_LISTBOX_UNSELECT )
- Select(FALSE, item);
+ DoUnselect(item);
else if ( action == wxACTION_LISTBOX_MOVEDOWN )
ChangeCurrent(1);
else if ( action == wxACTION_LISTBOX_MOVEUP )
else
return wxControl::PerformAction(action, numArg, strArg);
- return TRUE;
+ return true;
}
// ============================================================================
m_btnCapture = 0;
m_toggleOnPressAlways = toggleOnPressAlways;
m_actionMouse = wxACTION_NONE;
- m_trackMouseOutside = TRUE;
+ m_trackMouseOutside = true;
}
int wxStdListboxInputHandler::HitTest(const wxListBox *lbox,
// mouse is above the first item
item = 0;
}
- else if ( item >= lbox->GetCount() )
+ else if ( (unsigned int)item >= lbox->GetCount() )
{
// mouse is below the last item
item = lbox->GetCount() - 1;
bool wxStdListboxInputHandler::IsValidIndex(const wxListBox *lbox, int item)
{
- return item >= 0 && item < lbox->GetCount();
+ return item >= 0 && (unsigned int)item < lbox->GetCount();
}
wxControlAction
}
// by default we always do track it
- m_trackMouseOutside = TRUE;
+ m_trackMouseOutside = true;
return action;
}
// we're only interested in the key press events
if ( pressed && !event.AltDown() )
{
- bool isMoveCmd = TRUE;
+ bool isMoveCmd = true;
int style = consumer->GetInputWindow()->GetWindowStyle();
wxControlAction action;
switch ( keycode )
{
// movement
- case WXK_UP: action = wxACTION_LISTBOX_MOVEUP; break;
- case WXK_DOWN: action = wxACTION_LISTBOX_MOVEDOWN; break;
+ case WXK_UP:
+ action = wxACTION_LISTBOX_MOVEUP;
+ break;
+
+ case WXK_DOWN:
+ action = wxACTION_LISTBOX_MOVEDOWN;
+ break;
+
case WXK_PAGEUP:
- case WXK_PRIOR: action = wxACTION_LISTBOX_PAGEUP; break;
+ action = wxACTION_LISTBOX_PAGEUP;
+ break;
+
case WXK_PAGEDOWN:
- case WXK_NEXT: action = wxACTION_LISTBOX_PAGEDOWN; break;
- case WXK_HOME: action = wxACTION_LISTBOX_START; break;
- case WXK_END: action = wxACTION_LISTBOX_END; break;
+ action = wxACTION_LISTBOX_PAGEDOWN;
+ break;
+
+ case WXK_HOME:
+ action = wxACTION_LISTBOX_START;
+ break;
+
+ case WXK_END:
+ action = wxACTION_LISTBOX_END;
+ break;
// selection
case WXK_SPACE:
if ( style & wxLB_MULTIPLE )
{
action = wxACTION_LISTBOX_TOGGLE;
- isMoveCmd = FALSE;
+ isMoveCmd = false;
}
break;
case WXK_RETURN:
action = wxACTION_LISTBOX_ACTIVATE;
- isMoveCmd = FALSE;
+ isMoveCmd = false;
break;
default:
- if ( (keycode < 255) && wxIsalnum(keycode) )
+ if ( (keycode < 255) && wxIsalnum((wxChar)keycode) )
{
action = wxACTION_LISTBOX_FIND;
strArg = (wxChar)keycode;
}
}
- if ( !!action )
+ if ( !action.IsEmpty() )
{
consumer->PerformAction(action, -1, strArg);
//else: nothing to do for multiple selection listboxes
}
- return TRUE;
+ return true;
}
}
winCapture->ReleaseMouse();
m_btnCapture = 0;
- // generate the last event to triiger sending the selection event
action = m_actionMouse;
}
//else: the mouse wasn't presed over the listbox, only released here
action = wxACTION_LISTBOX_ACTIVATE;
}
- if ( !!action )
+ if ( !action.IsEmpty() )
{
lbox->PerformAction(action, item);
- return TRUE;
+ return true;
}
return wxStdInputHandler::HandleMouse(consumer, event);
// when we do it ourselves): in this case we only react to
// the mouse messages when they happen inside the listbox
if ( lbox->HitTest(event.GetPosition()) != wxHT_WINDOW_INSIDE )
- return FALSE;
+ return false;
}
int item = HitTest(lbox, event);
// events
SetupCapture(lbox, event, item);
- m_trackMouseOutside = FALSE;
+ m_trackMouseOutside = false;
}
if ( IsValidIndex(lbox, item) )
{
- lbox->PerformAction(m_actionMouse, item);
+ // pass something into strArg to tell the listbox that it shouldn't
+ // send the notification message: see PerformAction() above
+ lbox->PerformAction(m_actionMouse, item, _T("no"));
}
// else: don't pass invalid index to the listbox
}
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