]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk1/textctrl.cpp
Backed-out PNG8 patch (no time to look at why
[wxWidgets.git] / src / gtk1 / textctrl.cpp
index 023debbdb1a2dd6b49ef220dfd543667212b0bee..d91d2bf5f18dd18c468d217cd63c5da45e8060cd 100644 (file)
@@ -51,33 +51,74 @@ extern wxWindowGTK *g_delayedFocus;
 // ----------------------------------------------------------------------------
 
 #ifdef __WXGTK20__
+static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
+                                       const wxTextAttr& attr,
+                                       GtkTextIter *start,
+                                       GtkTextIter *end)
+{
+    static gchar buf[1024];
+    GtkTextTag *tag;
+
+    if (attr.HasFont())
+    {
+        char *font_string;
+        PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
+        font_string = pango_font_description_to_string(font_description);
+        g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
+        tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
+                                         buf );
+        if (!tag)
+            tag = gtk_text_buffer_create_tag( text_buffer, buf,
+                                              "font-desc", font_description,
+                                              NULL );
+        gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
+        g_free (font_string);
+    }
+
+    if (attr.HasTextColour())
+    {
+        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 ),
+                                         buf );
+        if (!tag)
+            tag = gtk_text_buffer_create_tag( text_buffer, buf,
+                                              "foreground-gdk", colFg, NULL );
+        gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
+    }
+
+    if (attr.HasBackgroundColour())
+    {
+        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 ),
+                                         buf );
+        if (!tag)
+            tag = gtk_text_buffer_create_tag( text_buffer, buf,
+                                              "background-gdk", colBg, NULL );
+        gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
+    }
+}
+
 static void wxGtkTextInsert(GtkWidget *text,
                             GtkTextBuffer *text_buffer,
                             const wxTextAttr& attr,
                             wxCharBuffer buffer)
 
 {
-    PangoFontDescription *font_description = attr.HasFont()
-                         ? attr.GetFont().GetNativeFontInfo()->description
-                         : NULL;
+    gint start_offset;
+    GtkTextIter iter, start;
 
-    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 );
-
-    GtkTextIter iter;
     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
                                      gtk_text_buffer_get_insert (text_buffer) );
+    start_offset = gtk_text_iter_get_offset (&iter);
+    gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 
-    gtk_text_buffer_insert_with_tags( text_buffer, &iter, buffer, strlen(buffer), tag, NULL );
+    gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
+
+    wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
 }
 #else
 static void wxGtkTextInsert(GtkWidget *text,
@@ -165,6 +206,18 @@ gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
     win->GetEventHandler()->ProcessEvent( event );
 }
 
+//-----------------------------------------------------------------------------
+// "expose_event" from scrolled window and textview
+//-----------------------------------------------------------------------------
+
+#ifdef __WXGTK20__
+static gboolean
+gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
+{
+    return TRUE;
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // "changed" from vertical scrollbar
 //-----------------------------------------------------------------------------
@@ -244,6 +297,9 @@ void wxTextCtrl::Init()
     SetUpdateFont(FALSE);
     m_text =
     m_vScrollbar = (GtkWidget *)NULL;
+#ifdef __WXGTK20__
+    m_frozenness = 0;
+#endif 
 }
 
 wxTextCtrl::wxTextCtrl( wxWindow *parent,
@@ -284,17 +340,13 @@ bool wxTextCtrl::Create( wxWindow *parent,
 
     bool multi_line = (style & wxTE_MULTILINE) != 0;
 
-#ifdef __WXGTK20__
-    GtkTextBuffer *buffer = NULL;
-#endif
-
     if (multi_line)
     {
 #ifdef __WXGTK20__
         // Create view
         m_text = gtk_text_view_new();
 
-        buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
+        m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 
         // create scrolled window
         m_widget = gtk_scrolled_window_new( NULL, NULL );
@@ -435,23 +487,26 @@ bool wxTextCtrl::Create( wxWindow *parent,
             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
     }
-    // gtk_entry_set_alignment was introduced in gtk+-2.3.5
-#if GTK_CHECK_VERSION(2, 3, 5)
     else
     {
-        if (style & wxTE_RIGHT)
-            gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
-        else if (style & wxTE_CENTRE)
-            gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
+#ifdef __WXGTK24__
+        // gtk_entry_set_alignment was introduced in gtk+-2.3.5
+        if (!gtk_check_version(2,4,0))
+        {
+            if (style & wxTE_RIGHT)
+                gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
+            else if (style & wxTE_CENTRE)
+                gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
+        }
+#endif
     }
-#endif // gtk+-2.3.5
 #endif // __WXGTK20__
     
     // We want to be notified about text changes.
 #ifdef __WXGTK20__
     if (multi_line)
     {
-        g_signal_connect( G_OBJECT(buffer), "changed",
+        g_signal_connect( G_OBJECT(m_buffer), "changed",
             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
     }
     else
@@ -505,13 +560,11 @@ wxString wxTextCtrl::GetValue() const
     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 );
+        gtk_text_buffer_get_start_iter( m_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 );
+        gtk_text_buffer_get_end_iter( m_buffer, &end );
+        gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 
 #if wxUSE_UNICODE
         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
@@ -550,11 +603,10 @@ void wxTextCtrl::SetValue( const wxString &value )
 #else
         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 #endif
-        GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
-        if (gtk_text_buffer_get_char_count(text_buffer) != 0)
+        if (gtk_text_buffer_get_char_count(m_buffer) != 0)
             IgnoreNextTextUpdate();
 
-        gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
+        gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 
 #else
         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
@@ -603,17 +655,15 @@ void wxTextCtrl::WriteText( const wxString &text )
             return;
         }
 
-        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 );
+        wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 
         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
         if ( adj->value == adj->upper - adj->page_size )
         {
             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
-                    gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
+                    gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
         }
 #else // GTK 1.x
         // After cursor movements, gtk_text_get_point() is wrong by one.
@@ -699,13 +749,11 @@ wxString wxTextCtrl::GetLineText( long lineNo ) const
             return wxEmptyString;
         }
 #else
-        GtkTextBuffer *text_buffer;
-        text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
         GtkTextIter line;
-        gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
+        gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
         GtkTextIter end;
-        gtk_text_buffer_get_end_iter(text_buffer,&end );
-        gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
+        gtk_text_buffer_get_end_iter(m_buffer,&end );
+        gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
         wxString result(wxGTK_CONV_BACK(text));
         g_free(text);
         return result.BeforeFirst(wxT('\n'));
@@ -789,9 +837,7 @@ 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 );
+        return gtk_text_buffer_get_line_count( m_buffer );
 #else
         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
@@ -828,14 +874,13 @@ void wxTextCtrl::SetInsertionPoint( long pos )
     if ( IsMultiLine() )
     {
 #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 );
+        gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
+        gtk_text_buffer_place_cursor( m_buffer, &iter );
         gtk_text_view_scroll_mark_onscreen
         (
             GTK_TEXT_VIEW(m_text),
-            gtk_text_buffer_get_insert( text_buffer )
+            gtk_text_buffer_get_insert( m_buffer )
         );
 #else // GTK+ 1.x
         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
@@ -872,10 +917,9 @@ void wxTextCtrl::SetInsertionPointEnd()
     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 );
+        gtk_text_buffer_get_end_iter( m_buffer, &end );
+        gtk_text_buffer_place_cursor( m_buffer, &end );
 #else
         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 #endif
@@ -1037,14 +1081,12 @@ void wxTextCtrl::SetSelection( long from, long to )
     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_get_iter_at_offset( m_buffer, &fromi, from );
+        gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
 
-        gtk_text_buffer_place_cursor( buf, &toi );
-        gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
+        gtk_text_buffer_place_cursor( m_buffer, &toi );
+        gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
 #else
         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 #endif
@@ -1060,11 +1102,10 @@ void wxTextCtrl::ShowPosition( long pos )
     if (m_windowStyle & wxTE_MULTILINE)
     {
 #ifdef __WXGTK20__
-        GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
         GtkTextIter iter;
-        gtk_text_buffer_get_start_iter( buf, &iter );
+        gtk_text_buffer_get_start_iter( m_buffer, &iter );
         gtk_text_iter_set_offset( &iter, pos );
-        GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
+        GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
 #else // GTK 1.x
         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
@@ -1116,15 +1157,13 @@ long wxTextCtrl::GetInsertionPoint() const
 #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 );
+        GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
         GtkTextIter cursor;
-        gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
+        gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
 
         return gtk_text_iter_get_offset( &cursor );
     }
@@ -1144,9 +1183,8 @@ long wxTextCtrl::GetLastPosition() const
     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_get_end_iter( m_buffer, &end );
 
         pos = gtk_text_iter_get_offset( &end );
 #else
@@ -1168,14 +1206,11 @@ void wxTextCtrl::Remove( long from, long to )
 #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_get_iter_at_offset( m_buffer, &fromi, from );
+        gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
 
-        gtk_text_buffer_delete( text_buffer, &fromi, &toi );
+        gtk_text_buffer_delete( m_buffer, &fromi, &toi );
     }
     else // single line
 #endif
@@ -1281,9 +1316,8 @@ void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
 #ifdef __WXGTK20__
      if (m_windowStyle & wxTE_MULTILINE)
      {
-         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) )
+         if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
          {
              haveSelection = TRUE;
              from = gtk_text_iter_get_offset(&ifrom);
@@ -1522,37 +1556,21 @@ bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
             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 );
+        gint l = gtk_text_buffer_get_char_count( m_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 );
+        gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
+        gtk_text_buffer_get_iter_at_offset( m_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 );
+        wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
 
          return TRUE;
 #else
@@ -1711,24 +1729,48 @@ wxSize wxTextCtrl::DoGetBestSize() const
 
 void wxTextCtrl::Freeze()
 {
-#ifndef __WXGTK20__
     if ( HasFlag(wxTE_MULTILINE) )
     {
-        gtk_text_freeze(GTK_TEXT(m_text));
+#ifdef __WXGTK20__
+        if ( !m_frozenness++ )
+        {
+            // freeze textview updates and remove buffer
+            g_signal_connect( G_OBJECT(m_text), "expose_event",
+                GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
+            g_signal_connect( G_OBJECT(m_widget), "expose_event",
+                GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
+            gtk_widget_set_sensitive(m_widget, false);
+            g_object_ref(m_buffer);
+            gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
     }
+#else
+        gtk_text_freeze(GTK_TEXT(m_text));
 #endif
+    }
 }
 
 void wxTextCtrl::Thaw()
 {
-#ifndef __WXGTK20__
     if ( HasFlag(wxTE_MULTILINE) )
     {
+#ifdef __WXGTK20__
+        wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
+
+        if ( !--m_frozenness )
+        {
+            // Reattach buffer and thaw textview updates
+            gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
+            g_object_unref(m_buffer);
+            gtk_widget_set_sensitive(m_widget, true);
+            g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
+            g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
+        }
+#else
         GTK_TEXT(m_text)->vadj->value = 0.0;
 
         gtk_text_thaw(GTK_TEXT(m_text));
-    }
 #endif
+    }
 }
 
 // ----------------------------------------------------------------------------