initial attempts to get raw bitmaps working under Mac

[wxWidgets.git] / src / gtk / textctrl.cpp

diff --git a/src/gtk/textctrl.cpp b/src/gtk/textctrl.cpp
index 86eef711a7916225235bfba8b19c6bdd8b4a207a..95ba64e94817b56b5c74e2a4b1b65212cfd5fd42 100644 (file)
--- a/src/gtk/textctrl.cpp
+++ b/src/gtk/textctrl.cpp
@@ -2,10 +2,9 @@
 // Name:        textctrl.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Name:        textctrl.cpp
 // Purpose:
 // Author:      Robert Roebling

-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__


@@ -14,409 +13,1679 @@
 
 #include "wx/textctrl.h"
 #include "wx/utils.h"
 
 #include "wx/textctrl.h"
 #include "wx/utils.h"

+#include "wx/intl.h"
+#include "wx/log.h"
+#include "wx/settings.h"
+#include "wx/panel.h"
+#include "wx/strconv.h"
+#include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ctype.h>
+#include <math.h>               // for fabs
+
+#include "wx/gtk/private.h"
+#include <gdk/gdkkeysyms.h>

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-//  wxTextCtrl
+// idle system

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern bool       g_blockEventsOnDrag;
+extern wxCursor   g_globalCursor;
+extern wxWindowGTK *g_delayedFocus;
+
+// ----------------------------------------------------------------------------
+// helpers
+// ----------------------------------------------------------------------------
+
+#ifdef __WXGTK20__
+static void wxGtkTextInsert(GtkWidget *text,
+                            GtkTextBuffer *text_buffer,
+                            const wxTextAttr& attr,
+                            wxCharBuffer buffer)
+
+{
+    PangoFontDescription *font_description = attr.HasFont()
+                         ? attr.GetFont().GetNativeFontInfo()->description
+                         : NULL;
+
+    GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
+                                           : NULL;
+
+    GdkColor *colBg = attr.HasBackgroundColour()
+                        ? attr.GetBackgroundColour().GetColor()
+                        : NULL;
+
+    GtkTextIter start, end;
+    GtkTextMark *mark;
+    // iterators are invalidated by any mutation that affects 'indexable' buffer contents,
+    // so we save current position in a mark
+    // we need a mark of left gravity, so we cannot use
+    // mark = gtk_text_buffer_get_insert (text_buffer)
+
+    gtk_text_buffer_get_iter_at_mark( text_buffer, &start,
+                                     gtk_text_buffer_get_insert (text_buffer) );
+    mark = gtk_text_buffer_create_mark( text_buffer, NULL, &start, TRUE/*left gravity*/ );
+
+    gtk_text_buffer_insert_at_cursor( text_buffer, buffer, strlen(buffer) );
+
+    gtk_text_buffer_get_iter_at_mark( text_buffer, &end,
+                                     gtk_text_buffer_get_insert (text_buffer) );
+    gtk_text_buffer_get_iter_at_mark( text_buffer, &start, mark );
+
+    GtkTextTag *tag;
+    tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
+                                     "foreground-gdk", colFg,
+                                     "background-gdk", colBg, NULL );
+    gtk_text_buffer_apply_tag( text_buffer, tag, &start, &end );
+}
+#else
+static void wxGtkTextInsert(GtkWidget *text,
+                            const wxTextAttr& attr,
+                            const char *txt,
+                            size_t len)
+{
+    GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
+                                   : NULL;
+
+    GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
+                                           : NULL;
+
+    GdkColor *colBg = attr.HasBackgroundColour()
+                        ? attr.GetBackgroundColour().GetColor()
+                        : NULL;
+
+    gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
+}
+#endif // GTK 1.x
+
+// ----------------------------------------------------------------------------
+// "insert_text" for GtkEntry
+// ----------------------------------------------------------------------------
+
+static void
+gtk_insert_text_callback(GtkEditable *editable,
+                         const gchar *new_text,
+                         gint new_text_length,
+                         gint *position,
+                         wxTextCtrl *win)
+{
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    // we should only be called if we have a max len limit at all
+    GtkEntry *entry = GTK_ENTRY (editable);
+
+    wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
+
+    // check that we don't overflow the max length limit
+    //
+    // FIXME: this doesn't work when we paste a string which is going to be
+    //        truncated
+    if ( entry->text_length == entry->text_max_length )
+    {
+        // we don't need to run the base class version at all
+        gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
+
+        // remember that the next changed signal is to be ignored to avoid
+        // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
+        win->IgnoreNextTextUpdate();
+
+        // and generate the correct one ourselves
+        wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
+        event.SetEventObject(win);
+        event.SetString(win->GetValue());
+        win->GetEventHandler()->ProcessEvent( event );
+    }
+}
+
+//-----------------------------------------------------------------------------
+//  "changed"
+//-----------------------------------------------------------------------------
+
+static void
+gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
+{
+    if ( win->IgnoreTextUpdate() )
+        return;
+
+    if (!win->m_hasVMT) return;
+
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    win->SetModified();
+    win->UpdateFontIfNeeded();
+
+    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
+    event.SetEventObject( win );
+    event.SetString( win->GetValue() );
+    win->GetEventHandler()->ProcessEvent( event );
+}

 
 

-void gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
+//-----------------------------------------------------------------------------
+// "changed" from vertical scrollbar
+//-----------------------------------------------------------------------------
+
+#ifndef __WXGTK20__
+static void
+gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )

 {
 {

-  win->m_modified = TRUE;
-};
+    if (!win->m_hasVMT) return;
+
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    win->CalculateScrollbar();
+}
+#endif
+
+// ----------------------------------------------------------------------------
+// redraw callback for multiline text
+// ----------------------------------------------------------------------------
+
+#ifndef __WXGTK20__

 
 

+// redrawing a GtkText from inside a wxYield() call results in crashes (the
+// text sample shows it in its "Add lines" command which shows wxProgressDialog
+// which implicitly calls wxYield()) so we override GtkText::draw() and simply
+// don't do anything if we're inside wxYield()
+
+extern bool wxIsInsideYield;
+
+extern "C" {
+    typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
+}
+
+static GtkDrawCallback gs_gtk_text_draw = NULL;
+
+extern "C"
+void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
+{
+    if ( !wxIsInsideYield )
+    {
+        wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
+                     _T("infinite recursion in wxgtk_text_draw aborted") );
+
+        gs_gtk_text_draw(widget, rect);
+    }
+}
+
+#endif // __WXGTK20__
+
+//-----------------------------------------------------------------------------
+//  wxTextCtrl
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)

 
 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 
 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)

-//  EVT_CHAR(wxTextCtrl::OnChar)
+    EVT_CHAR(wxTextCtrl::OnChar)
+
+    EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
+    EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
+    EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
+    EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
+    EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
+
+    EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
+    EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
+    EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
+    EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
+    EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)

 END_EVENT_TABLE()
 
 END_EVENT_TABLE()
 

-wxTextCtrl::wxTextCtrl(void) : streambuf()
+void wxTextCtrl::Init()

 {
 {

-  m_modified = FALSE;
-};
+    m_ignoreNextUpdate =
+    m_modified = FALSE;
+    m_updateFont = FALSE;
+    m_text =
+    m_vScrollbar = (GtkWidget *)NULL;
+}

 
 

-wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
-      const wxPoint &pos, const wxSize &size,
-      int style, const wxString &name ) : streambuf()
+wxTextCtrl::wxTextCtrl( wxWindow *parent,
+                        wxWindowID id,
+                        const wxString &value,
+                        const wxPoint &pos,
+                        const wxSize &size,
+                        long style,
+                        const wxValidator& validator,
+                        const wxString &name )

 {
 {

-  m_modified = FALSE;
-  Create( parent, id, value, pos, size, style, name );
-};
+    Init();
+
+    Create( parent, id, value, pos, size, style, validator, name );
+}

 
 

-bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
-      const wxPoint &pos, const wxSize &size,
-      int style, const wxString &name )
+bool wxTextCtrl::Create( wxWindow *parent,
+                         wxWindowID id,
+                         const wxString &value,
+                         const wxPoint &pos,
+                         const wxSize &size,
+                         long style,
+                         const wxValidator& validator,
+                         const wxString &name )

 {
 {

-  m_needParent = TRUE;
+    m_needParent = TRUE;
+    m_acceptsFocus = TRUE;

 
 

-  PreCreation( parent, id, pos, size, style, name );
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, validator, name ))
+    {
+        wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
+        return FALSE;
+    }

 
 

-  if (style & wxTE_MULTILINE)
-    m_widget = gtk_text_new( NULL, NULL );
-  else
-    m_widget = gtk_entry_new();

 
 

-  wxSize newSize = size;
-  if (newSize.x == -1) newSize.x = 80;
-  if (newSize.y == -1) newSize.y = 26;
-  SetSize( newSize.x, newSize.y );
+    m_vScrollbarVisible = FALSE;

 
 

-  PostCreation();
+    bool multi_line = (style & wxTE_MULTILINE) != 0;
+
+#ifdef __WXGTK20__
+    GtkTextBuffer *buffer = NULL;
+#endif

 
 

-  // we want to be notified about text changes
-  gtk_signal_connect(GTK_OBJECT(m_widget), "changed",
-                     GTK_SIGNAL_FUNC(gtk_text_changed_callback),
-                     (gpointer)this);
+    if (multi_line)
+    {
+#ifdef __WXGTK20__
+        // Create view
+        m_text = gtk_text_view_new();
+
+        buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+
+        // create scrolled window
+        m_widget = gtk_scrolled_window_new( NULL, NULL );
+        gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
+                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
+
+        // Insert view into scrolled window
+        gtk_container_add( GTK_CONTAINER(m_widget), m_text );
+
+        // Global settings which can be overridden by tags, I guess.
+        if (HasFlag( wxHSCROLL ))
+            gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
+        else
+            gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
+
+        if (!HasFlag(wxNO_BORDER))
+            gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
+#else
+        // create our control ...
+        m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
+
+        // ... and put into the upper left hand corner of the table
+        bool bHasHScrollbar = FALSE;
+        m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
+        GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
+        gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
+                      (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
+                      (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
+                       0, 0);
+
+        // always wrap words
+        gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
+
+        // finally, put the vertical scrollbar in the upper right corner
+        m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
+        GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
+        gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
+                     GTK_FILL,
+                     (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
+                     0, 0);
+#endif
+    }
+    else
+    {
+        // a single-line text control: no need for scrollbars
+        m_widget =
+        m_text = gtk_entry_new();
+    }
+
+    m_parent->DoAddChild( this );
+
+    m_focusWidget = m_text;
+
+    PostCreation();
+
+    SetFont( parent->GetFont() );
+
+    wxSize size_best( DoGetBestSize() );
+    wxSize new_size( size );
+    if (new_size.x == -1)
+        new_size.x = size_best.x;
+    if (new_size.y == -1)
+        new_size.y = size_best.y;
+    if ((new_size.x != size.x) || (new_size.y != size.y))
+        SetSize( new_size.x, new_size.y );
+
+    if (multi_line)
+        gtk_widget_show(m_text);
+
+#ifndef __WXGTK20__
+    if (multi_line)
+    {
+        gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
+          (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
+
+        // only initialize gs_gtk_text_draw once, starting from the next the
+        // klass::draw will already be wxgtk_text_draw
+        if ( !gs_gtk_text_draw )
+        {
+            GtkDrawCallback&
+                draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
+
+            gs_gtk_text_draw = draw;
+
+            draw = wxgtk_text_draw;
+        }
+    }
+#endif // GTK+ 1.x
+
+    if (!value.IsEmpty())
+    {
+#ifdef __WXGTK20__
+        SetValue( value );
+#else
+
+#if !GTK_CHECK_VERSION(1, 2, 0)
+        // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
+        // gtk_editable_insert_text()
+        gtk_widget_realize(m_text);
+#endif // GTK 1.0
+
+        gint tmp = 0;
+#if wxUSE_UNICODE
+        wxWX2MBbuf val = value.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
+#endif
+
+        if (multi_line)
+        {
+            // Bring editable's cursor uptodate. Bug in GTK.
+            SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
+        }
+
+#endif
+    }
+
+    if (style & wxTE_PASSWORD)
+    {
+        if (!multi_line)
+            gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
+    }
+
+    if (style & wxTE_READONLY)
+    {
+        if (!multi_line)
+            gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
+#ifdef __WXGTK20__
+        else
+            gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
+    }
+#else
+    }
+    else
+    {
+        if (multi_line)
+            gtk_text_set_editable( GTK_TEXT(m_text), 1 );
+    }
+#endif
+
+    // We want to be notified about text changes.
+#ifdef __WXGTK20__
+    if (multi_line)
+    {
+        g_signal_connect( G_OBJECT(buffer), "changed",
+            GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+    }
+    else
+#endif
+    {
+    gtk_signal_connect( GTK_OBJECT(m_text), "changed",
+       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+    }

 
 

-  if (!value.IsNull())
-  {
-    gint tmp = 0;
-    gtk_editable_insert_text( GTK_EDITABLE(m_widget), value, value.Length(), &tmp );
-  };
+    // we don't set a valid background colour, because the window
+    // manager should use a default one
+    m_backgroundColour = wxColour();

 
 

-  if (style & wxREADONLY)
-  {
-  }
-  else
-  {
-    if (style & wxTE_MULTILINE) gtk_text_set_editable( GTK_TEXT(m_widget), 1 );
-  };
+    wxColour colFg = parent->GetForegroundColour();
+    SetForegroundColour( colFg );

 
 

-  Show( TRUE );
+    m_cursor = wxCursor( wxCURSOR_IBEAM );

 
 

-  return TRUE;
-};
+    wxTextAttr attrDef( colFg, m_backgroundColour, parent->GetFont() );
+    SetDefaultStyle( attrDef );

 
 

-wxString wxTextCtrl::GetValue(void) const
+    Show( TRUE );
+
+    return TRUE;
+}
+
+void wxTextCtrl::CalculateScrollbar()
+{
+#ifndef __WXGTK20__
+    if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
+
+    GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
+
+    if (adj->upper - adj->page_size < 0.8)
+    {
+        if (m_vScrollbarVisible)
+        {
+            gtk_widget_hide( m_vScrollbar );
+            m_vScrollbarVisible = FALSE;
+        }
+    }
+    else
+    {
+        if (!m_vScrollbarVisible)
+        {
+            gtk_widget_show( m_vScrollbar );
+            m_vScrollbarVisible = TRUE;
+        }
+    }
+#endif
+}
+
+wxString wxTextCtrl::GetValue() const

 {
 {

-  wxString tmp;
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_widget) );
-    tmp = gtk_editable_get_chars( GTK_EDITABLE(m_widget), 0, len );
-  }
-  else
-  {
-    tmp = gtk_entry_get_text( GTK_ENTRY(m_widget) );
-  };
-  return tmp;
-};
+    wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
+
+    wxString tmp;
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+
+        GtkTextIter start;
+        gtk_text_buffer_get_start_iter( text_buffer, &start );
+        GtkTextIter end;
+        gtk_text_buffer_get_end_iter( text_buffer, &end );
+        gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
+        
+#if wxUSE_UNICODE
+        wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
+#else
+        wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
+#endif
+        tmp = buffer;
+
+        g_free( text );
+#else
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+        tmp = text;
+        g_free( text );
+#endif
+    }
+    else
+    {
+        tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
+    }
+
+    return tmp;
+}

 
 void wxTextCtrl::SetValue( const wxString &value )
 {
 
 void wxTextCtrl::SetValue( const wxString &value )
 {

-  wxString tmp = "";
-  if (!value.IsNull()) tmp = value;
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_widget) );
-    gtk_editable_delete_text( GTK_EDITABLE(m_widget), 0, len );
-    len = 0;
-    gtk_editable_insert_text( GTK_EDITABLE(m_widget), tmp, tmp.Length(), &len );
-  }
-  else
-  {
-    gtk_entry_set_text( GTK_ENTRY(m_widget), tmp );
-  };
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+
+#if wxUSE_UNICODE
+        wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
+#else
+        wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
+#endif
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+        gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
+
+#else
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
+        len = 0;
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
+#endif
+    }
+    else
+    {
+        gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
+    }
+
+    // GRG, Jun/2000: Changed this after a lot of discussion in
+    //   the lists. wxWindows 2.2 will have a set of flags to
+    //   customize this behaviour.
+    SetInsertionPoint(0);
+
+    m_modified = FALSE;
+}

 
 void wxTextCtrl::WriteText( const wxString &text )
 {
 
 void wxTextCtrl::WriteText( const wxString &text )
 {

-  if (text.IsNull()) return;
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );

 
 

-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_widget) );
-    gtk_editable_insert_text( GTK_EDITABLE(m_widget), text, text.Length(), &len );
-  }
-  else
-  {
-    gtk_entry_append_text( GTK_ENTRY(m_widget), text );
-  };
-};
+    if ( text.empty() )
+        return;

 
 

-bool wxTextCtrl::LoadFile( const wxString &WXUNUSED(file) )
-{
-  wxFAIL_MSG("wxTextCtrl::LoadFile not implemented");
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+#ifdef __WXGTK20__

 
 

-  return FALSE;
-};
+#if wxUSE_UNICODE
+        wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
+#else
+        wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
+#endif
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+        
+        // TODO: Call whatever is needed to delete the selection.
+        wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
+
+        // Scroll to cursor.
+        GtkTextIter iter;
+        gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,  gtk_text_buffer_get_insert( text_buffer ) );
+        gtk_text_view_scroll_to_iter( GTK_TEXT_VIEW(m_text), &iter, 0.0, FALSE, 0.0, 1.0 );
+#else // GTK 1.x
+        // After cursor movements, gtk_text_get_point() is wrong by one.
+        gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
+
+        // always use m_defaultStyle, even if it is empty as otherwise
+        // resetting the style and appending some more text wouldn't work: if
+        // we don't specify the style explicitly, the old style would be used
+        gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
+        wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
+
+        // Bring editable's cursor back uptodate.
+        SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
+#endif // GTK 1.x/2.0
+    }
+    else // single line
+    {
+        // First remove the selection if there is one
+        gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
+
+        // This moves the cursor pos to behind the inserted text.
+        gint len = GET_EDITABLE_POS(m_text);
+
+#ifdef __WXGTK20__
+
+#if wxUSE_UNICODE
+        wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
+#else
+        wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
+#endif
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );

 
 

-bool wxTextCtrl::SaveFile( const wxString &WXUNUSED(file) )
-{
-  wxFAIL_MSG("wxTextCtrl::SaveFile not implemented");
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
+#endif

 
 

-  return FALSE;
-};
+        // Bring entry's cursor uptodate.
+        gtk_entry_set_position( GTK_ENTRY(m_text), len );
+    }

 
 

-bool wxTextCtrl::IsModified(void)
-{
-  return m_modified;
-};
+    m_modified = TRUE;
+}

 
 

-void wxTextCtrl::DiscardEdits(void)
+void wxTextCtrl::AppendText( const wxString &text )

 {
 {

-  m_modified = FALSE;
-};
+    SetInsertionPointEnd();
+    WriteText( text );
+}

 
 

-/*

 wxString wxTextCtrl::GetLineText( long lineNo ) const
 {
 wxString wxTextCtrl::GetLineText( long lineNo ) const
 {

-};
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifndef __WXGTK20__
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+
+        if (text)
+        {
+            wxString buf(wxT(""));
+            long i;
+            int currentLine = 0;
+            for (i = 0; currentLine != lineNo && text[i]; i++ )
+                if (text[i] == '\n')
+            currentLine++;
+            // Now get the text
+            int j;
+            for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
+                buf += text[i];
+
+            g_free( text );
+            return buf;
+        }
+        else
+#endif
+        {
+            return wxEmptyString;
+        }
+    }
+    else
+    {
+        if (lineNo == 0) return GetValue();
+        return wxEmptyString;
+    }
+}

 
 

+void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
+{
+  /* If you implement this, don't forget to update the documentation!
+   * (file docs/latex/wx/text.tex) */
+    wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
+}

 
 

-void wxTextCtrl::OnDropFiles( wxDropFilesEvent &event )
+bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const

 {
 {

-};
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        wxString text = GetValue();
+
+        // cast to prevent warning. But pos really should've been unsigned.
+        if( (unsigned long)pos > text.Len()  )
+            return FALSE;
+
+        *x=0;   // First Col
+        *y=0;   // First Line
+
+        const wxChar* stop = text.c_str() + pos;
+        for ( const wxChar *p = text.c_str(); p < stop; p++ )
+        {
+            if (*p == wxT('\n'))
+            {
+                (*y)++;
+                *x=0;
+            }
+            else
+                (*x)++;
+        }
+    }
+    else // single line control
+    {
+        if ( pos <= GTK_ENTRY(m_text)->text_length )
+        {
+            *y = 0;
+            *x = pos;
+        }
+        else
+        {
+            // index out of bounds
+            return FALSE;
+        }
+    }
+
+    return TRUE;
+}

 
 

-long wxTextCtrl::PositionToXY( long pos, long *x, long *y ) const
+long wxTextCtrl::XYToPosition(long x, long y ) const

 {
 {

-};
+    if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
+
+    long pos=0;
+    for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'

 
 

-long wxTextCtrl::XYToPosition( long x, long y )
+    pos += x;
+    return pos;
+}
+
+int wxTextCtrl::GetLineLength(long lineNo) const

 {
 {

-};
+    wxString str = GetLineText (lineNo);
+    return (int) str.Length();
+}

 
 

-int wxTextCtrl::GetNumberOfLines(void)
+int wxTextCtrl::GetNumberOfLines() const

 {
 {

-};
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+
+        return gtk_text_buffer_get_line_count( buffer );
+#else
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+
+        if (text)
+        {
+            int currentLine = 0;
+            for (int i = 0; i < len; i++ )
+            {
+                if (text[i] == '\n')
+                    currentLine++;
+            }
+            g_free( text );
+
+            // currentLine is 0 based, add 1 to get number of lines
+            return currentLine + 1;
+        }
+        else
+        {
+            return 0;
+        }
+#endif
+    }
+    else
+    {
+        return 1;
+    }
+}

 
 

-*/

 void wxTextCtrl::SetInsertionPoint( long pos )
 {
 void wxTextCtrl::SetInsertionPoint( long pos )
 {

-  int tmp = (int) pos;
-  if (m_windowStyle & wxTE_MULTILINE)
-    gtk_text_set_point( GTK_TEXT(m_widget), tmp );
-  else
-    gtk_entry_set_position( GTK_ENTRY(m_widget), tmp );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+        GtkTextIter iter;
+        gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
+        gtk_text_buffer_place_cursor( text_buffer, &iter );
+#else
+        gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
+          GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+        /* we fake a set_point by inserting and deleting. as the user
+           isn't supposed to get to know about this non-sense, we
+           disconnect so that no events are sent to the user program. */
+
+        gint tmp = (gint)pos;
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );

 
 

-void wxTextCtrl::SetInsertionPointEnd(void)
+        gtk_signal_connect( GTK_OBJECT(m_text), "changed",
+          GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+        // bring editable's cursor uptodate. Bug in GTK.
+        SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
+#endif
+    }
+    else
+    {
+        gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
+
+        // Bring editable's cursor uptodate. Bug in GTK.
+        SET_EDITABLE_POS(m_text, (guint32)pos);
+    }
+}
+
+void wxTextCtrl::SetInsertionPointEnd()

 {
 {

-  int pos = 0;
-  if (m_windowStyle & wxTE_MULTILINE)
-    pos = gtk_text_get_length( GTK_TEXT(m_widget) );
-  else
-    pos = GTK_ENTRY(m_widget)->text_length;
-  SetInsertionPoint( pos-1 );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+        GtkTextIter end;
+        gtk_text_buffer_get_end_iter( text_buffer, &end );
+        gtk_text_buffer_place_cursor( text_buffer, &end );
+#else
+        SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
+#endif
+    }
+    else
+    {
+        gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
+    }
+}

 
 void wxTextCtrl::SetEditable( bool editable )
 {
 
 void wxTextCtrl::SetEditable( bool editable )
 {

-  if (m_windowStyle & wxTE_MULTILINE)
-    gtk_text_set_editable( GTK_TEXT(m_widget), editable );
-  else
-    gtk_entry_set_editable( GTK_ENTRY(m_widget), editable );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
+#else
+        gtk_text_set_editable( GTK_TEXT(m_text), editable );
+#endif
+    }
+    else
+    {
+        gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
+    }
+}
+
+bool wxTextCtrl::Enable( bool enable )
+{
+    if (!wxWindowBase::Enable(enable))
+    {
+        // nothing to do
+        return FALSE;
+    }
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        SetEditable( enable );
+#else
+        gtk_text_set_editable( GTK_TEXT(m_text), enable );
+        OnParentEnable(enable);
+#endif
+    }
+    else
+    {
+        gtk_widget_set_sensitive( m_text, enable );
+    }
+
+    return TRUE;
+}
+
+// wxGTK-specific: called recursively by Enable,
+// to give widgets an oppprtunity to correct their colours after they
+// have been changed by Enable
+void wxTextCtrl::OnParentEnable( bool enable )
+{
+    // If we have a custom background colour, we use this colour in both
+    // disabled and enabled mode, or we end up with a different colour under the
+    // text.
+    wxColour oldColour = GetBackgroundColour();
+    if (oldColour.Ok())
+    {
+        // Need to set twice or it'll optimize the useful stuff out
+        if (oldColour == * wxWHITE)
+            SetBackgroundColour(*wxBLACK);
+        else
+            SetBackgroundColour(*wxWHITE);
+        SetBackgroundColour(oldColour);
+    }
+}
+
+void wxTextCtrl::DiscardEdits()
+{
+    m_modified = FALSE;
+}
+
+// ----------------------------------------------------------------------------
+// max text length support
+// ----------------------------------------------------------------------------
+
+void wxTextCtrl::IgnoreNextTextUpdate()
+{
+    m_ignoreNextUpdate = TRUE;
+}
+
+bool wxTextCtrl::IgnoreTextUpdate()
+{
+    if ( m_ignoreNextUpdate )
+    {
+        m_ignoreNextUpdate = FALSE;
+
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+void wxTextCtrl::SetMaxLength(unsigned long len)
+{
+    if ( !HasFlag(wxTE_MULTILINE) )
+    {
+        gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
+
+        // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
+        // we had tried to enter more text than allowed by max text length and
+        // the text wasn't really changed
+        //
+        // to detect this and generate TEXT_MAXLEN event instead of
+        // TEXT_CHANGED one in this case we also catch "insert_text" signal
+        //
+        // when max len is set to 0 we disconnect our handler as it means that
+        // we shouldn't check anything any more
+        if ( len )
+        {
+            gtk_signal_connect( GTK_OBJECT(m_text),
+                                "insert_text",
+                                GTK_SIGNAL_FUNC(gtk_insert_text_callback),
+                                (gpointer)this);
+        }
+        else // no checking
+        {
+            gtk_signal_disconnect_by_func
+            (
+                GTK_OBJECT(m_text),
+                GTK_SIGNAL_FUNC(gtk_insert_text_callback),
+                (gpointer)this
+            );
+        }
+    }
+}

 
 void wxTextCtrl::SetSelection( long from, long to )
 {
 
 void wxTextCtrl::SetSelection( long from, long to )
 {

-  gtk_editable_select_region( GTK_EDITABLE(m_widget), (gint)from, (gint)to );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (from == -1 && to == -1)
+    {
+        from = 0;
+        to = GetValue().Length();
+    }
+
+#ifndef __WXGTK20__
+    if ( (m_windowStyle & wxTE_MULTILINE) &&
+         !GTK_TEXT(m_text)->line_start_cache )
+    {
+        // tell the programmer that it didn't work
+        wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
+        return;
+    }
+#endif
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+
+        GtkTextIter fromi, toi;
+        gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
+        gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
+
+        gtk_text_buffer_place_cursor( buf, &toi );
+        gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
+#else
+        gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+#endif
+    }
+    else
+    {
+        gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+    }
+}

 
 

-void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
+void wxTextCtrl::ShowPosition( long pos )

 {
 {

-  wxFAIL_MSG("wxTextCtrl::ShowPosition not implemented");
-};
+#ifndef __WXGTK20__
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
+        float totalLines =  (float) GetNumberOfLines();
+        long posX;
+        long posY;
+        PositionToXY(pos, &posX, &posY);
+        float posLine = (float) posY;
+        float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
+        gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
+    }
+#endif
+}

 
 

-long wxTextCtrl::GetInsertionPoint(void) const
+long wxTextCtrl::GetInsertionPoint() const

 {
 {

-  return (long) GTK_EDITABLE(m_widget)->current_pos;
-};
+    wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
+
+#ifdef __WXGTK20__
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+
+        // There is no direct accessor for the cursor, but
+        // internally, the cursor is the "mark" called
+        // "insert" in the text view's btree structure.
+
+        GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
+        GtkTextIter cursor;
+        gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
+
+        return gtk_text_iter_get_offset( &cursor );
+    }
+    else
+#endif
+    {
+    return (long) GET_EDITABLE_POS(m_text);
+    }
+}

 
 

-long wxTextCtrl::GetLastPosition(void) const
+long wxTextCtrl::GetLastPosition() const

 {
 {

-  int pos = 0;
-  if (m_windowStyle & wxTE_MULTILINE)
-    pos = gtk_text_get_length( GTK_TEXT(m_widget) );
-  else
-    pos = GTK_ENTRY(m_widget)->text_length;
-  return (long)pos-1;
-};
+    wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
+
+    int pos = 0;
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+        GtkTextIter end;
+        gtk_text_buffer_get_end_iter( text_buffer, &end );
+
+        pos = gtk_text_iter_get_offset( &end );
+#else
+        pos = gtk_text_get_length( GTK_TEXT(m_text) );
+#endif
+    }
+    else
+    {
+        pos = GTK_ENTRY(m_text)->text_length;
+    }
+
+    return (long)pos;
+}

 
 void wxTextCtrl::Remove( long from, long to )
 {
 
 void wxTextCtrl::Remove( long from, long to )
 {

-  gtk_editable_delete_text( GTK_EDITABLE(m_widget), (gint)from, (gint)to );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+#ifdef __WXGTK20__
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        GtkTextBuffer *
+            text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+
+        GtkTextIter fromi, toi;
+        gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
+        gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
+
+        gtk_text_buffer_delete( text_buffer, &fromi, &toi );
+    }
+    else // single line
+#endif
+    gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+}

 
 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 {
 
 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 {

-  gtk_editable_delete_text( GTK_EDITABLE(m_widget), (gint)from, (gint)to );
-  if (value.IsNull()) return;
-  gint pos = (gint)to;
-  gtk_editable_insert_text( GTK_EDITABLE(m_widget), value, value.Length(), &pos );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    Remove( from, to );
+
+    if (!value.IsEmpty())
+    {
+#ifdef __WXGTK20__
+        SetInsertionPoint( from );
+        WriteText( value );
+#else // GTK 1.x
+        gint pos = (gint)from;
+#if wxUSE_UNICODE
+        wxWX2MBbuf buf = value.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
+#endif // wxUSE_UNICODE
+#endif // GTK 1.x/2.x
+    }
+}

 
 

-void wxTextCtrl::Cut(void)
+void wxTextCtrl::Cut()

 {
 {

-  gtk_editable_cut_clipboard( GTK_EDITABLE(m_widget), 0 );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );

 
 

-void wxTextCtrl::Copy(void)
+#ifndef __WXGTK20__
+    gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
+#endif
+}
+
+void wxTextCtrl::Copy()

 {
 {

-  gtk_editable_copy_clipboard( GTK_EDITABLE(m_widget), 0 );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );

 
 

-void wxTextCtrl::Paste(void)
+#ifndef __WXGTK20__
+    gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
+#endif
+}
+
+void wxTextCtrl::Paste()

 {
 {

-  gtk_editable_paste_clipboard( GTK_EDITABLE(m_widget), 0 );
-};
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );

 
 

-void wxTextCtrl::Delete(void)
+#ifndef __WXGTK20__
+    gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
+#endif
+}
+
+// Undo/redo
+void wxTextCtrl::Undo()

 {
 {

-  SetValue( "" );
-};
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
+}

 
 

-void wxTextCtrl::OnChar( wxKeyEvent &WXUNUSED(event) )
+void wxTextCtrl::Redo()

 {
 {

-};
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
+}

 
 

-int wxTextCtrl::overflow(int c)
+bool wxTextCtrl::CanUndo() const

 {
 {

-  // Make sure there is a holding area
-  if ( allocate()==EOF )
-  {
-    wxError("Streambuf allocation failed","Internal error");
-    return EOF;
-  }
+    // TODO
+    //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
+    return FALSE;
+}

 
 

-  // Verify that there are no characters in get area
-  if ( gptr() && gptr() < egptr() )
-  {
-     wxError("Who's trespassing my get area?","Internal error");
-     return EOF;
-  }
+bool wxTextCtrl::CanRedo() const
+{
+    // TODO
+    //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
+    return FALSE;
+}

 
 

-  // Reset get area
-  setg(0,0,0);
+// If the return values from and to are the same, there is no
+// selection.
+void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
+{
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );

 
 

-  // Make sure there is a put area
-  if ( ! pptr() )
-  {
-/* This doesn't seem to be fatal so comment out error message */
-//    wxError("Put area not opened","Internal error");
-    setp( base(), base() );
-  }
+    gint from, to;
+#ifdef __WXGTK20__
+    GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
+    GtkTextIter ifrom, ito;
+    if (!gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito))
+#else
+    if ( !(GTK_EDITABLE(m_text)->has_selection) )
+#endif
+    {
+        from =
+        to = GetInsertionPoint();
+    }
+    else // got selection
+    {
+#ifdef __WXGTK20__
+        from = gtk_text_iter_get_offset(&ifrom);
+        to = gtk_text_iter_get_offset(&ito);
+#else
+        from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
+        to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
+#endif

 
 

-  // Determine how many characters have been inserted but no consumed
-  int plen = pptr() - pbase();
+        if ( from > to )
+        {
+            // exchange them to be compatible with wxMSW
+            gint tmp = from;
+            from = to;
+            to = tmp;
+        }
+    }
+
+    if ( fromOut )
+        *fromOut = from;
+    if ( toOut )
+        *toOut = to;
+}

 
 

-  // Now Jerry relies on the fact that the buffer is at least 2 chars
-  // long, but the holding area "may be as small as 1" ???
-  // And we need an additional \0, so let's keep this inefficient but
-  // safe copy.
+bool wxTextCtrl::IsEditable() const
+{
+    wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );

 
 

-  // If c!=EOF, it is a character that must also be comsumed
-  int xtra = c==EOF? 0 : 1;
+#ifdef __WXGTK20__
+    return gtk_editable_get_editable(GTK_EDITABLE(m_text));
+#else
+    return GTK_EDITABLE(m_text)->editable;
+#endif
+}

 
 

-  // Write temporary C-string to wxTextWindow
-  {
-  char *txt = new char[plen+xtra+1];
-  memcpy(txt, pbase(), plen);
-  txt[plen] = (char)c;     // append c
-  txt[plen+xtra] = '\0';   // append '\0' or overwrite c
-    // If the put area already contained \0, output will be truncated there
-  WriteText(txt);
-    delete[] txt;
-  }
+bool wxTextCtrl::IsModified() const
+{
+    return m_modified;
+}
+
+void wxTextCtrl::Clear()
+{
+    SetValue( wxT("") );
+}
+
+void wxTextCtrl::OnChar( wxKeyEvent &key_event )
+{
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
+    {
+        wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
+        event.SetEventObject(this);
+        event.SetString(GetValue());
+        if (GetEventHandler()->ProcessEvent(event)) return;
+    }
+
+    if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
+    {
+        // This will invoke the dialog default action, such
+        // as the clicking the default button.
+
+        wxWindow *top_frame = m_parent;
+        while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
+            top_frame = top_frame->GetParent();
+
+        if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
+        {
+            GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
+
+            if (window->default_widget)
+            {
+                gtk_widget_activate (window->default_widget);
+                return;
+            }
+        }
+    }
+
+    key_event.Skip();
+}

 
 

-  // Reset put area
-  setp(pbase(), epptr());
+GtkWidget* wxTextCtrl::GetConnectWidget()
+{
+    return GTK_WIDGET(m_text);
+}

 
 

-#if defined(__WATCOMC__)
-  return __NOT_EOF;
-#elif defined(zapeof)     // HP-UX (all cfront based?)
-  return zapeof(c);
+bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
+{
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifdef __WXGTK20__
+        return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork

 #else
 #else

-  return c!=EOF ? c : 0;  // this should make everybody happy
+        return (window == GTK_TEXT(m_text)->text_area);

 #endif
 #endif

+    }
+    else
+    {
+        return (window == GTK_ENTRY(m_text)->text_area);
+    }
+}
+
+// the font will change for subsequent text insertiongs
+bool wxTextCtrl::SetFont( const wxFont &font )
+{
+    wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
+
+    if ( !wxTextCtrlBase::SetFont(font) )
+    {
+        // font didn't change, nothing to do
+        return FALSE;
+    }
+
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        m_updateFont = TRUE;

 
 

-/* OLD CODE
-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return EOF;
-*/
-};
+        m_defaultStyle.SetFont(font);

 
 

-int wxTextCtrl::sync(void)
+        ChangeFontGlobally();
+    }
+
+    return TRUE;
+}
+
+void wxTextCtrl::ChangeFontGlobally()

 {
 {

-  // Verify that there are no characters in get area
-  if ( gptr() && gptr() < egptr() )
-  {
-     wxError("Who's trespassing my get area?","Internal error");
-     return EOF;
-  }
+    // this method is very inefficient and hence should be called as rarely as
+    // possible!
+    wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
+                  _T("shouldn't be called for single line controls") );
+
+    wxString value = GetValue();
+    if ( !value.IsEmpty() )
+    {
+        m_updateFont = FALSE;
+
+        Clear();
+        AppendText(value);
+    }
+}

 
 

-  if ( pptr() && pptr() > pbase() ) return overflow(EOF);
+void wxTextCtrl::UpdateFontIfNeeded()
+{
+    if ( m_updateFont )
+        ChangeFontGlobally();
+}
+
+bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
+{
+    if ( !wxControl::SetForegroundColour(colour) )
+        return FALSE;
+
+    // update default fg colour too
+    m_defaultStyle.SetTextColour(colour);
+
+    return TRUE;
+}
+
+bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
+{
+    wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
+
+    if ( !wxControl::SetBackgroundColour( colour ) )
+        return FALSE;
+
+    if (!m_widget->window)
+        return FALSE;
+
+    wxColour sysbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
+    if (sysbg.Red() == colour.Red() &&
+        sysbg.Green() == colour.Green() &&
+        sysbg.Blue() == colour.Blue())
+    {
+        return FALSE; // FIXME or TRUE?
+    }
+
+    if (!m_backgroundColour.Ok())
+        return FALSE;
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+#ifndef __WXGTK20__
+        GdkWindow *window = GTK_TEXT(m_text)->text_area;
+        if (!window)
+            return FALSE;
+        m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
+        gdk_window_set_background( window, m_backgroundColour.GetColor() );
+        gdk_window_clear( window );
+#endif
+    }
+
+    // change active background color too
+    m_defaultStyle.SetBackgroundColour( colour );
+
+    return TRUE;
+}
+
+bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
+{
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        if ( style.IsDefault() )
+        {
+            // nothing to do
+            return TRUE;
+        }
+#ifdef __WXGTK20__
+        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+        gint l = gtk_text_buffer_get_char_count( text_buffer );
+
+        wxCHECK_MSG( start >= 0 && end <= l, FALSE,
+                     _T("invalid range in wxTextCtrl::SetStyle") );
+
+        GtkTextIter starti, endi;
+        gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
+        gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
+
+        // use the attributes from style which are set in it and fall back
+        // first to the default style and then to the text control default
+        // colours for the others
+        wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
+
+        PangoFontDescription *font_description = attr.HasFont()
+                             ? attr.GetFont().GetNativeFontInfo()->description
+                             : NULL;
+
+        GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
+                                               : NULL;
+
+        GdkColor *colBg = attr.HasBackgroundColour()
+                            ? attr.GetBackgroundColour().GetColor()
+                            : NULL;
+
+        GtkTextTag *tag;
+        tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
+                                         "foreground-gdk", colFg,
+                                         "background-gdk", colBg, NULL );
+        gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
+
+         return TRUE;
+#else
+        // VERY dirty way to do that - removes the required text and re-adds it
+        // with styling (FIXME)
+         
+        gint l = gtk_text_get_length( GTK_TEXT(m_text) );
+
+        wxCHECK_MSG( start >= 0 && end <= l, FALSE,
+                     _T("invalid range in wxTextCtrl::SetStyle") );
+
+        gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
+        wxString tmp(text,*wxConvCurrent);
+        g_free( text );
+
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
+        gtk_editable_set_position( GTK_EDITABLE(m_text), start );
+
+#if wxUSE_UNICODE
+        wxWX2MBbuf buf = tmp.mbc_str();
+        const char *txt = buf;
+        size_t txtlen = strlen(buf);
+#else
+        const char *txt = tmp;
+        size_t txtlen = tmp.length();
+#endif
+
+        // use the attributes from style which are set in it and fall back
+        // first to the default style and then to the text control default
+        // colours for the others
+        wxGtkTextInsert(m_text,
+                        wxTextAttr::Combine(style, m_defaultStyle, this),
+                        txt,
+                        txtlen);
+
+        /* does not seem to help under GTK+ 1.2 !!!
+        gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
+        SetInsertionPoint( old_pos );
+#endif
+        return TRUE;
+    }
+    else // singe line
+    {
+        // cannot do this for GTK+'s Entry widget
+        return FALSE;
+    }
+}
+
+void wxTextCtrl::ApplyWidgetStyle()
+{
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        // how ?
+    }
+    else
+    {
+        SetWidgetStyle();
+        gtk_widget_set_style( m_text, m_widgetStyle );
+    }
+}
+
+void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+    Cut();
+}
+
+void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+    Copy();
+}
+
+void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+    Paste();
+}
+
+void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
+{
+    Undo();
+}
+
+void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+    Redo();
+}

 
 

-  return 0;
-/* OLD CODE
-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return 0;
-*/
-};
+void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCut() );
+}
+
+void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCopy() );
+}
+
+void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+    event.Enable( CanPaste() );
+}
+
+void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanUndo() );
+}

 
 

-int wxTextCtrl::underflow(void)
+void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)

 {
 {

-  return EOF;
-};
+    event.Enable( CanRedo() );
+}

 
 

-wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
+void wxTextCtrl::OnInternalIdle()

 {
 {

-  WriteText(s);
-  return *this;
+    wxCursor cursor = m_cursor;
+    if (g_globalCursor.Ok()) cursor = g_globalCursor;
+
+    if (cursor.Ok())
+    {
+#ifndef __WXGTK20__
+        GdkWindow *window = (GdkWindow*) NULL;
+        if (HasFlag(wxTE_MULTILINE))
+            window = GTK_TEXT(m_text)->text_area;
+        else
+            window = GTK_ENTRY(m_text)->text_area;
+
+        if (window)
+            gdk_window_set_cursor( window, cursor.GetCursor() );
+
+        if (!g_globalCursor.Ok())
+            cursor = *wxSTANDARD_CURSOR;
+
+        window = m_widget->window;
+        if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
+            gdk_window_set_cursor( window, cursor.GetCursor() );
+#endif
+    }
+
+    if (g_delayedFocus == this)
+    {
+        if (GTK_WIDGET_REALIZED(m_widget))
+        {
+            gtk_widget_grab_focus( m_widget );
+            g_delayedFocus = NULL;
+        }
+    }
+
+    UpdateWindowUI();

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(float f)
+wxSize wxTextCtrl::DoGetBestSize() const

 {
 {

-  static char buf[100];
-  sprintf(buf, "%.2f", f);
-  WriteText(buf);
-  return *this;
+    // FIXME should be different for multi-line controls...
+    wxSize ret( wxControl::DoGetBestSize() );
+    return wxSize(80, ret.y);

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(double d)
+// ----------------------------------------------------------------------------
+// freeze/thaw
+// ----------------------------------------------------------------------------
+
+void wxTextCtrl::Freeze()

 {
 {

-  static char buf[100];
-  sprintf(buf, "%.2f", d);
-  WriteText(buf);
-  return *this;
+#ifndef __WXGTK20__
+    if ( HasFlag(wxTE_MULTILINE) )
+    {
+        gtk_text_freeze(GTK_TEXT(m_text));
+    }
+#endif

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(int i)
+void wxTextCtrl::Thaw()

 {
 {

-  static char buf[100];
-  sprintf(buf, "%i", i);
-  WriteText(buf);
-  return *this;
+#ifndef __WXGTK20__
+    if ( HasFlag(wxTE_MULTILINE) )
+    {
+        GTK_TEXT(m_text)->vadj->value = 0.0;
+
+        gtk_text_thaw(GTK_TEXT(m_text));
+    }
+#endif

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(long i)
+// ----------------------------------------------------------------------------
+// scrolling
+// ----------------------------------------------------------------------------
+
+GtkAdjustment *wxTextCtrl::GetVAdj() const

 {
 {

-  static char buf[100];
-  sprintf(buf, "%ld", i);
-  WriteText(buf);
-  return *this;
+#ifdef __WXGTK20__
+    return NULL;
+#else
+    return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
+#endif

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(const char c)
+bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)

 {
 {

-  char buf[2];
+#ifndef __WXGTK20__
+    float value = adj->value + diff;

 
 

-  buf[0] = c;
-  buf[1] = 0;
-  WriteText(buf);
-  return *this;
+    if ( value < 0 )
+        value = 0;
+
+    float upper = adj->upper - adj->page_size;
+    if ( value > upper )
+        value = upper;
+
+    // did we noticeably change the scroll position?
+    if ( fabs(adj->value - value) < 0.2 )
+    {
+        // well, this is what Robert does in wxScrollBar, so it must be good...
+        return FALSE;
+    }
+
+    adj->value = value;
+
+    gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
+
+#endif
+    return TRUE;
+}
+
+bool wxTextCtrl::ScrollLines(int lines)
+{
+#ifdef __WXGTK20__
+    return FALSE;
+#else
+    GtkAdjustment *adj = GetVAdj();
+    if ( !adj )
+        return FALSE;
+
+    // this is hardcoded to 10 in GTK+ 1.2 (great idea)
+    static const int KEY_SCROLL_PIXELS = 10;
+
+    return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
+#endif
+}
+
+bool wxTextCtrl::ScrollPages(int pages)
+{
+#ifdef __WXGTK20__
+    return FALSE;
+#else
+    GtkAdjustment *adj = GetVAdj();
+    if ( !adj )
+        return FALSE;
+
+    return DoScroll(adj, (int)ceil(pages*adj->page_increment));
+#endif

 }
 
 }