X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4bb6408c2631988fab9925014c6619358bf867de..74a8f67d96591cec101def2a7d47c64072aff7fd:/src/motif/listbox.cpp

diff --git a/src/motif/listbox.cpp b/src/motif/listbox.cpp
index 9352c32bc2..da952a3627 100644
--- a/src/motif/listbox.cpp
+++ b/src/motif/listbox.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        listbox.cpp
+// Name:        src/motif/listbox.cpp
 // Purpose:     wxListBox
 // Author:      Julian Smart
 // Modified by:
@@ -9,18 +9,61 @@
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "listbox.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_LISTBOX
 
 #include "wx/listbox.h"
-#include "wx/settings.h"
-#include "wx/dynarray.h"
-#include "wx/log.h"
 
-#if !USE_SHARED_LIBRARY
-  IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+    #include "wx/settings.h"
+    #include "wx/arrstr.h"
+#endif
+
+#ifdef __VMS__
+#pragma message disable nosimpint
+#endif
+#include <Xm/List.h>
+#ifdef __VMS__
+#pragma message enable nosimpint
 #endif
+#include "wx/motif/private.h"
+
+static void wxListBoxCallback(Widget w,
+                              XtPointer clientData,
+                              XmListCallbackStruct * cbs);
+
+// ----------------------------------------------------------------------------
+// wxSizeKeeper
+// ----------------------------------------------------------------------------
+
+// helper class to reduce code duplication
+class wxSizeKeeper
+{
+    int m_x, m_y;
+    int m_w, m_h;
+    wxWindow* m_wnd;
+public:
+    wxSizeKeeper( wxWindow* w )
+        : m_wnd( w )
+    {
+        m_wnd->GetSize( &m_w, &m_h );
+        m_wnd->GetPosition( &m_x, &m_y );
+    }
+
+    void Restore()
+    {
+        int x, y;
+
+        m_wnd->GetSize( &x, &y );
+        if( x != m_x || y != m_y )
+            m_wnd->SetSize( m_x, m_y, m_w, m_h );
+    }
+};
 
 // ============================================================================
 // list box control implementation
@@ -29,8 +72,7 @@
 // Listbox item
 wxListBox::wxListBox()
 {
-  m_noItems = 0;
-  m_selected = 0;
+    m_noItems = 0;
 }
 
 bool wxListBox::Create(wxWindow *parent, wxWindowID id,
@@ -41,195 +83,528 @@ bool wxListBox::Create(wxWindow *parent, wxWindowID id,
                        const wxValidator& validator,
                        const wxString& name)
 {
-  m_noItems = n;
-  m_selected = 0;
+    if( !wxControl::CreateControl( parent, id, pos, size, style,
+                                   validator, name ) )
+        return false;
+    PreCreation();
+
+    m_noItems = (unsigned int)n;
+
+    Widget parentWidget = (Widget) parent->GetClientWidget();
+    Display* dpy = XtDisplay(parentWidget);
+
+    Arg args[4];
+    int count = 0;
+    XtSetArg( args[count], XmNlistSizePolicy, XmCONSTANT ); ++count;
+    XtSetArg( args[count], XmNselectionPolicy,
+              ( m_windowStyle & wxLB_MULTIPLE ) ? XmMULTIPLE_SELECT :
+              ( m_windowStyle & wxLB_EXTENDED ) ? XmEXTENDED_SELECT :
+                                                  XmBROWSE_SELECT );
+    ++count;
+    if( m_font.IsOk() )
+    {
+        XtSetArg( args[count],
+                  (String)wxFont::GetFontTag(), m_font.GetFontTypeC(dpy) );
+        ++count;
+    }
+    if( m_windowStyle & wxLB_ALWAYS_SB )
+    {
+        XtSetArg( args[count], XmNscrollBarDisplayPolicy, XmSTATIC );
+        ++count;
+    }
 
-  SetName(name);
-  SetValidator(validator);
+    Widget listWidget =
+        XmCreateScrolledList(parentWidget,
+                             name.char_str(), args, count);
+
+    m_mainWidget = (WXWidget) listWidget;
+
+    Set(n, choices);
+
+    XtManageChild (listWidget);
+
+    wxSize best = GetBestSize();
+    if( size.x != -1 ) best.x = size.x;
+    if( size.y != -1 ) best.y = size.y;
+
+    XtAddCallback (listWidget,
+                   XmNbrowseSelectionCallback,
+                   (XtCallbackProc) wxListBoxCallback,
+                   (XtPointer) this);
+    XtAddCallback (listWidget,
+                   XmNextendedSelectionCallback,
+                   (XtCallbackProc) wxListBoxCallback,
+                   (XtPointer) this);
+    XtAddCallback (listWidget,
+                   XmNmultipleSelectionCallback,
+                   (XtCallbackProc) wxListBoxCallback,
+                   (XtPointer) this);
+    XtAddCallback (listWidget,
+                   XmNdefaultActionCallback,
+                   (XtCallbackProc) wxListBoxCallback,
+                   (XtPointer) this);
+
+    PostCreation();
+    AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
+                  pos.x, pos.y, best.x, best.y);
+
+    return true;
+}
 
-  if (parent) parent->AddChild(this);
+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);
+}
 
-  wxSystemSettings settings;
-  SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
+void wxListBox::SetSelectionPolicy()
+{
+    Widget listBox = (Widget)m_mainWidget;
+    Arg args[3];
 
-  m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
+    XtSetArg( args[0], XmNlistSizePolicy, XmCONSTANT );
 
-  // TODO create listbox
+    XtSetArg( args[1], XmNselectionPolicy,
+              ( m_windowStyle & wxLB_MULTIPLE ) ? XmMULTIPLE_SELECT :
+              ( m_windowStyle & wxLB_EXTENDED ) ? XmEXTENDED_SELECT :
+                                                  XmBROWSE_SELECT );
 
-  return FALSE;
+    XtSetValues( listBox, args, 2 );
 }
 
-wxListBox::~wxListBox()
+void wxListBox::DoSetFirstItem( int N )
 {
+    int count, length;
+
+    if (!IsValid(N))
+        return;
+
+    XtVaGetValues ((Widget) m_mainWidget,
+                    XmNvisibleItemCount, &count,
+                    XmNitemCount, &length,
+                    NULL);
+    if ((N + count) >= length)
+        N = length - count;
+    XmListSetPos ((Widget) m_mainWidget, N + 1);
 }
 
-void wxListBox::SetFirstItem(int N)
+void wxListBox::DoDeleteOneItem(unsigned int n)
 {
-    // TODO
-}
+    Widget listBox = (Widget) m_mainWidget;
 
-void wxListBox::SetFirstItem(const wxString& s)
-{
-    // TODO
-}
+    XmListDeletePos (listBox, n + 1);
 
-void wxListBox::Delete(int N)
-{
-  m_noItems --;
-    // TODO
+    wxListBoxBase::DoDeleteOneItem(n);
+    m_noItems --;
 }
 
-void wxListBox::Append(const wxString& item)
+int wxDoFindStringInList(Widget w, const wxString& s)
 {
-  m_noItems ++;
+    wxXmString str( s );
+    int *positions = NULL;
+    int no_positions = 0;
+    bool success = XmListGetMatchPos (w, str(),
+                                      &positions, &no_positions);
 
-  // TODO
+    if (success && positions)
+    {
+        int pos = positions[0];
+        XtFree ((char *) positions);
+        return pos - 1;
+    }
+    else
+        return -1;
 }
 
-void wxListBox::Append(const wxString& item, char *Client_data)
+int wxListBox::FindString(const wxString& s, bool WXUNUSED(bCase)) const
 {
-  m_noItems ++;
+    // FIXME: back to base class for not supported value of bCase
 
-  // TODO
+    return wxDoFindStringInList( (Widget)m_mainWidget, s );
 }
 
-void wxListBox::Set(int n, const wxString *choices, char** clientData)
+void wxListBox::DoClear()
 {
-  m_noItems = n;
+    if (!m_noItems)
+        return;
+
+    wxSizeKeeper sk( this );
+    Widget listBox = (Widget) m_mainWidget;
 
-  // TODO
+    XmListDeleteAllItems (listBox);
+
+    sk.Restore();
+
+    wxListBoxBase::DoClear();
+    m_noItems = 0;
 }
 
-int wxListBox::FindString(const wxString& s) const
+void wxListBox::DoSetSelection(int N, bool select)
 {
-    // TODO
-    return -1;
+    m_inSetValue = true;
+    if (select)
+    {
+#if 0
+        if (m_windowStyle & wxLB_MULTIPLE)
+        {
+            int *selections = NULL;
+            int n = GetSelections (&selections);
+
+            // This hack is supposed to work, to make it possible
+            // to select more than one item, but it DOESN'T under Motif 1.1.
+
+            XtVaSetValues ((Widget) m_mainWidget,
+                           XmNselectionPolicy, XmMULTIPLE_SELECT,
+                           NULL);
+
+            int i;
+            for (i = 0; i < n; i++)
+                XmListSelectPos ((Widget) m_mainWidget,
+                                 selections[i] + 1, False);
+
+            XmListSelectPos ((Widget) m_mainWidget, N + 1, False);
+
+            XtVaSetValues ((Widget) m_mainWidget,
+                           XmNselectionPolicy, XmEXTENDED_SELECT,
+                           NULL);
+        }
+        else
+#endif // 0
+            XmListSelectPos ((Widget) m_mainWidget, N + 1, False);
+
+    }
+    else
+        XmListDeselectPos ((Widget) m_mainWidget, N + 1);
+
+    m_inSetValue = false;
 }
 
-void wxListBox::Clear()
+bool wxListBox::IsSelected(int N) const
 {
-  m_noItems = 0;
-  // TODO
+    // In Motif, no simple way to determine if the item is selected.
+    wxArrayInt theSelections;
+    int count = GetSelections (theSelections);
+    if (count == 0)
+        return false;
+    else
+    {
+        int j;
+        for (j = 0; j < count; j++)
+            if (theSelections[j] == N)
+                return true;
+    }
+    return false;
 }
 
-void wxListBox::SetSelection(int N, bool select)
+// Return number of selections and an array of selected integers
+int wxListBox::GetSelections(wxArrayInt& aSelections) const
 {
-    // TODO
+    aSelections.Empty();
+
+    Widget listBox = (Widget) m_mainWidget;
+    int *posList = NULL;
+    int posCnt = 0;
+    bool flag = XmListGetSelectedPos (listBox, &posList, &posCnt);
+    if (flag)
+    {
+        if (posCnt > 0)
+        {
+            aSelections.Alloc(posCnt);
+
+            int i;
+            for (i = 0; i < posCnt; i++)
+                aSelections.Add(posList[i] - 1);
+
+            XtFree ((char *) posList);
+            return posCnt;
+        }
+        else
+            return 0;
+    }
+    else
+        return 0;
 }
 
-bool wxListBox::Selected(int N) const
+// Get single selection, for single choice list items
+int wxDoGetSelectionInList(Widget listBox)
 {
-    // TODO
-    return FALSE;
+    int *posList = NULL;
+    int posCnt = 0;
+    bool flag = XmListGetSelectedPos (listBox, &posList, &posCnt);
+    if (flag)
+    {
+        int id = -1;
+        if (posCnt > 0)
+            id = posList[0] - 1;
+        XtFree ((char *) posList);
+        return id;
+    }
+    else
+        return -1;
 }
 
-void wxListBox::Deselect(int N)
+int wxListBox::GetSelection() const
 {
-    // TODO
+    return wxDoGetSelectionInList((Widget) m_mainWidget);
 }
 
-char *wxListBox::GetClientData(int N) const
+// Find string for position
+wxString wxDoGetStringInList( Widget listBox, int n )
 {
-    // TODO
-    return (char *)NULL;
+    XmString *strlist;
+    int count;
+    XtVaGetValues( listBox,
+                   XmNitemCount, &count,
+                   XmNitems, &strlist,
+                   NULL );
+    if( n < count && n >= 0 )
+        return wxXmStringToString( strlist[n] );
+    else
+        return wxEmptyString;
 }
 
-void wxListBox::SetClientData(int N, char *Client_data)
+wxString wxListBox::GetString(unsigned int n) const
 {
-    // TODO
+    return wxDoGetStringInList( (Widget)m_mainWidget, n );
 }
 
-// Return number of selections and an array of selected integers
-int wxListBox::GetSelections(wxArrayInt& aSelections) const
+int wxListBox::DoInsertItems(const wxArrayStringsAdapter & items,
+                             unsigned int pos,
+                             void **clientData, wxClientDataType type)
 {
-    aSelections.Empty();
+    Widget listBox = (Widget) m_mainWidget;
 
-/* TODO
-    if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
-    {
-        int no_sel = ??
-        for ( int n = 0; n < no_sel; n++ )
-            aSelections.Add(??);
+    const unsigned int numItems = items.GetCount();
 
-        return no_sel;
-    }
-    else  // single-selection listbox
+    XmString *text = new XmString[numItems];
+    unsigned int i;
+#if XmVersion > 1001
+    for (i = 0; i < numItems; i++)
     {
-        aSelections.Add(??);
+        text[i] = wxStringToXmString(items[i]);
+    }
+    XmListAddItemsUnselected(listBox, text, numItems, GetMotifPosition(pos));
+    InsertNewItemsClientData(pos, numItems, clientData, type);
+#else
+    AllocClientData(numItems);
 
-        return 1;
+    unsigned int idx = pos;
+    for ( i = 0; i < numItems; i++, idx++ )
+    {
+        text[i] = wxStringToXmString(items[i]);
+        XmListAddItemUnselected(listBox, text[i], GetMotifPosition(idx));
+        InsertNewItemClientData(idx, clientData, i, type);
     }
-*/
-    return 0;
+#endif
+    for (i = 0; i < numItems; i++)
+        XmStringFree(text[i]);
+    delete[] text;
+
+    m_noItems += numItems;
+
+    SetSelectionPolicy();
+
+    return pos + numItems - 1;
 }
 
-// Get single selection, for single choice list items
-int wxListBox::GetSelection() const
+void wxListBox::SetString(unsigned int n, const wxString& s)
 {
-    // TODO
-    return -1;
+    wxSizeKeeper sk( this );
+    Widget listBox = (Widget) m_mainWidget;
+
+    wxXmString text( s );
+
+    // delete the item and add it again.
+    // FIXME isn't there a way to change it in place?
+    XmListDeletePos (listBox, n+1);
+    XmListAddItem (listBox, text(), n+1);
+
+    sk.Restore();
 }
 
-// Find string for position
-wxString wxListBox::GetString(int N) const
+void wxListBox::Command (wxCommandEvent & event)
 {
-    // TODO
-    return wxString("");
+    if (event.GetExtraLong())
+        SetSelection (event.GetInt());
+    else
+    {
+        Deselect (event.GetInt());
+        return;
+    }
+    ProcessCommand (event);
 }
 
-void wxListBox::SetSize(int x, int y, int width, int height, int sizeFlags)
+void wxListBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
+                        XmListCallbackStruct * cbs)
 {
-    // TODO
+    wxListBox *item = (wxListBox *) clientData;
+
+    if (item->InSetValue())
+        return;
+
+    wxEventType evtType;
+
+    if( cbs->reason == XmCR_DEFAULT_ACTION )
+        evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED;
+    else
+        evtType = wxEVT_COMMAND_LISTBOX_SELECTED;
+
+    int n = cbs->item_position - 1;
+    wxCommandEvent event (evtType, item->GetId());
+    if ( item->HasClientObjectData() )
+        event.SetClientObject( item->GetClientObject(n) );
+    else if ( item->HasClientUntypedData() )
+        event.SetClientData( item->GetClientData(n) );
+    event.SetInt(n);
+    event.SetExtraLong(true);
+    event.SetEventObject(item);
+    event.SetString( item->GetString( n ) );
+
+    int x = -1;
+    if( NULL != cbs->event && cbs->event->type == ButtonRelease )
+    {
+        XButtonEvent* evt = (XButtonEvent*)cbs->event;
+
+        x = evt->x;
+    }
+
+    switch (cbs->reason)
+    {
+    case XmCR_MULTIPLE_SELECT:
+    case XmCR_BROWSE_SELECT:
+#if wxUSE_CHECKLISTBOX
+        item->DoToggleItem( n, x );
+#endif
+    case XmCR_DEFAULT_ACTION:
+        item->HandleWindowEvent(event);
+        break;
+    case XmCR_EXTENDED_SELECT:
+        switch (cbs->selection_type)
+        {
+        case XmINITIAL:
+        case XmADDITION:
+        case XmMODIFICATION:
+            item->DoToggleItem( n, x );
+            item->HandleWindowEvent(event);
+            break;
+        }
+        break;
+    }
 }
 
-void wxListBox::InsertItems(int nItems, const wxString items[], int pos)
+WXWidget wxListBox::GetTopWidget() const
 {
-    m_noItems += nItems;
-
-    // TODO
+    return (WXWidget) XtParent( (Widget) m_mainWidget );
 }
 
-void wxListBox::SetString(int N, const wxString& s)
+void wxListBox::ChangeBackgroundColour()
 {
-    // TODO
+    wxWindow::ChangeBackgroundColour();
+
+    Widget parent = XtParent ((Widget) m_mainWidget);
+    Widget hsb, vsb;
+
+    XtVaGetValues (parent,
+        XmNhorizontalScrollBar, &hsb,
+        XmNverticalScrollBar, &vsb,
+        NULL);
+
+   /* TODO: should scrollbars be affected? Should probably have separate
+    * function to change them (by default, taken from wxSystemSettings)
+    */
+    wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
+    wxDoChangeBackgroundColour((WXWidget) hsb, backgroundColour, true);
+    wxDoChangeBackgroundColour((WXWidget) vsb, backgroundColour, true);
+
+    XtVaSetValues (hsb,
+        XmNtroughColor, backgroundColour.AllocColour(XtDisplay(hsb)),
+        NULL);
+    XtVaSetValues (vsb,
+        XmNtroughColor, backgroundColour.AllocColour(XtDisplay(vsb)),
+        NULL);
+
+    // MBN: why change parent's background? It looks really ugly.
+    // wxDoChangeBackgroundColour((WXWidget) parent, m_backgroundColour, true);
 }
 
-int wxListBox::Number () const
+void wxListBox::ChangeForegroundColour()
 {
-  return m_noItems;
+    wxWindow::ChangeForegroundColour();
+
+    Widget parent = XtParent ((Widget) m_mainWidget);
+    Widget hsb, vsb;
+
+    XtVaGetValues(parent,
+                  XmNhorizontalScrollBar, &hsb,
+                  XmNverticalScrollBar, &vsb,
+                  NULL);
+
+    /* TODO: should scrollbars be affected? Should probably have separate
+             function to change them (by default, taken from wxSystemSettings)
+
+        wxDoChangeForegroundColour((WXWidget) hsb, m_foregroundColour);
+        wxDoChangeForegroundColour((WXWidget) vsb, m_foregroundColour);
+        wxDoChangeForegroundColour((WXWidget) parent, m_foregroundColour);
+    */
 }
 
-// For single selection items only
-wxString wxListBox::GetStringSelection () const
+unsigned int wxListBox::GetCount() const
 {
-  int sel = GetSelection ();
-  if (sel > -1)
-    return this->GetString (sel);
-  else
-    return wxString("");
+    return m_noItems;
 }
 
-bool wxListBox::SetStringSelection (const wxString& s, bool flag)
+#define LIST_SCROLL_SPACING 6
+
+wxSize wxDoGetListBoxBestSize( Widget listWidget, const wxWindow* window )
 {
-  int sel = FindString (s);
-  if (sel > -1)
+    int max;
+    Dimension spacing, highlight, xmargin, ymargin, shadow;
+    int width = 0;
+    int x, y;
+
+    XtVaGetValues( listWidget,
+                   XmNitemCount, &max,
+                   XmNlistSpacing, &spacing,
+                   XmNhighlightThickness, &highlight,
+                   XmNlistMarginWidth, &xmargin,
+                   XmNlistMarginHeight, &ymargin,
+                   XmNshadowThickness, &shadow,
+                   NULL );
+
+    for( size_t i = 0; i < (size_t)max; ++i )
     {
-      SetSelection (sel, flag);
-      return TRUE;
+        window->GetTextExtent( wxDoGetStringInList( listWidget, i ), &x, &y );
+        width = wxMax( width, x );
     }
-  else
-    return FALSE;
+
+    // use some arbitrary value if there are no strings
+    if( width == 0 )
+        width = 100;
+
+    // get my
+    window->GetTextExtent( "v", &x, &y );
+
+    // make it a little larger than widest string, plus the scrollbar
+    width += wxSystemSettings::GetMetric( wxSYS_VSCROLL_X )
+        + 2 * highlight + LIST_SCROLL_SPACING + 2 * xmargin + 2 * shadow;
+
+    // at least 3 items, at most 10
+    int height = wxMax( 3, wxMin( 10, max ) ) *
+        ( y + spacing + 2 * highlight ) + 2 * ymargin + 2 * shadow;
+
+    return wxSize( width, height );
 }
 
-void wxListBox::Command (wxCommandEvent & event)
+wxSize wxListBox::DoGetBestSize() const
 {
-  if (event.m_extraLong)
-    SetSelection (event.m_commandInt);
-  else
-    {
-      Deselect (event.m_commandInt);
-      return;
-    }
-  ProcessCommand (event);
+    return wxDoGetListBoxBestSize( (Widget)m_mainWidget, this );
 }
 
+#endif // wxUSE_LISTBOX