don't crash if m_widget == NULL in OnInternalIdle()

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

diff --git a/src/gtk/textctrl.cpp b/src/gtk/textctrl.cpp
index 7deb4d6ff79f5fa4bbcc63979a0ce2e712267e44..b9671b28503b39c6ff6b36340a35d66476145b8e 100644 (file)
--- a/src/gtk/textctrl.cpp
+++ b/src/gtk/textctrl.cpp
@@ -17,17 +17,16 @@
     #include "wx/log.h"
     #include "wx/utils.h"
     #include "wx/panel.h"
+    #include "wx/settings.h"
+    #include "wx/math.h"
 #endif
 
-#include "wx/math.h"
-#include "wx/settings.h"
 #include "wx/strconv.h"
 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <ctype.h>
-#include "wx/math.h"
 
 #include "wx/gtk/private.h"
 #include <gdk/gdkkeysyms.h>
@@ -105,7 +104,7 @@ static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
 
     if (attr.HasTextColour())
     {
-        GdkColor *colFg = attr.GetTextColour().GetColor();
+        const GdkColor *colFg = attr.GetTextColour().GetColor();
         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
                    colFg->red, colFg->green, colFg->blue);
         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
@@ -118,7 +117,7 @@ static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
 
     if (attr.HasBackgroundColour())
     {
-        GdkColor *colBg = attr.GetBackgroundColour().GetColor();
+        const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
                    colBg->red, colBg->green, colBg->blue);
         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
@@ -470,7 +469,7 @@ gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 // common part of the event handlers below
 static void
 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
-                                                               wxEventType eventType, const gchar * signal_name)
+                                wxEventType eventType, const gchar * signal_name)
 {
     wxClipboardTextEvent event( eventType, win->GetId() );
     event.SetEventObject( win );
@@ -478,7 +477,7 @@ handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
     {
         // don't let the default processing to take place if we did something
         // ourselves in the event handler
-       g_signal_stop_emission_by_name (widget, signal_name);
+        g_signal_stop_emission_by_name (widget, signal_name);
     }
 }
 
@@ -486,22 +485,22 @@ extern "C" {
 static void
 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 {
-       handle_text_clipboard_callback(
-               widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
+    handle_text_clipboard_callback(
+        widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
 }
 
 static void
 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 {
-       handle_text_clipboard_callback(
-               widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
+    handle_text_clipboard_callback(
+        widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
 }
 
 static void
 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 {
-       handle_text_clipboard_callback(
-               widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
+    handle_text_clipboard_callback(
+        widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
 }
 }
 
@@ -522,9 +521,9 @@ gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl
 //  wxTextCtrl
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
 
-BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
+BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
     EVT_CHAR(wxTextCtrl::OnChar)
 
     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
@@ -944,19 +943,25 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
     if ( m_windowStyle & wxTE_MULTILINE )
     {
         GtkTextIter iter;
-        gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
-        if (gtk_text_iter_is_end(&iter))
+
+        if (pos > GetLastPosition())
             return false;
 
-        *y = gtk_text_iter_get_line(&iter);
-        *x = gtk_text_iter_get_line_offset(&iter);
+        gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
+
+        if ( y )
+            *y = gtk_text_iter_get_line(&iter);
+        if ( x )
+            *x = gtk_text_iter_get_line_offset(&iter);
     }
     else // single line control
     {
         if ( pos <= GTK_ENTRY(m_text)->text_length )
         {
-            *y = 0;
-            *x = pos;
+            if ( y )
+                *y = 0;
+            if ( x )
+                *x = pos;
         }
         else
         {