[glabels] Fixed merge inconsistencies and crash

[Jim Evins <jimevins src gnome org>]

commit 8016d6f4fe8f4970ce615d53d2d541be6afef850
Author: Jim Evins <evins snaught com>
Date:   Wed Nov 4 22:47:31 2009 -0500

    Fixed merge inconsistencies and crash
    
    merge.c:
    	Fixed crash when trying to print when a "key" radio has been selected
    	but no key has been selected yet.
    
    object-editor-*-page.c:
    	Fixed potential inconsistencies with "key" radio buttons when a merge
    	source has not been selected but the field indicates that it is using a
    	merge key.  This can happen when opening a glabels file that has a merge
    	type not supported by the current instance of glabels.
    
    xml-label.c:
    	Also when parsing a merge field that has a merge type not supported,
    	don't continue parsing it.

 src/merge.c                     |    2 +-
 src/object-editor-bc-page.c     |    2 +-
 src/object-editor-data-page.c   |    2 +-
 src/object-editor-fill-page.c   |    2 +-
 src/object-editor-image-page.c  |    2 +-
 src/object-editor-line-page.c   |    2 +-
 src/object-editor-shadow-page.c |    2 +-
 src/object-editor-text-page.c   |    2 +-
 src/xml-label.c                 |   13 ++++++++-----
 9 files changed, 16 insertions(+), 13 deletions(-)
---
diff --git a/src/merge.c b/src/merge.c
index 56e1481..f7db354 100644
--- a/src/merge.c
+++ b/src/merge.c
@@ -684,7 +684,7 @@ gl_merge_eval_key (glMergeRecord *record,
 
 	gl_debug (DEBUG_MERGE, "START");
 
-	if ( (record != NULL) ) {
+	if ( (record != NULL) && (key != NULL) ) {
 		for (p = record->field_list; p != NULL; p = p->next) {
 			field = (glMergeField *) p->data;
 
diff --git a/src/object-editor-bc-page.c b/src/object-editor-bc-page.c
index 4c80ac6..caea8c8 100644
--- a/src/object-editor-bc-page.c
+++ b/src/object-editor-bc-page.c
@@ -338,7 +338,7 @@ gl_object_editor_set_bc_color (glObjectEditor      *editor,
                                           color_node->color);
 	}
 	
-	if (!color_node->field_flag) {
+	if (!color_node->field_flag || !merge_flag) {
 		gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 						  (editor->priv->bc_color_radio), TRUE); 
 		gtk_widget_set_sensitive (editor->priv->bc_color_combo, TRUE);
diff --git a/src/object-editor-data-page.c b/src/object-editor-data-page.c
index 728a36d..284fd5c 100644
--- a/src/object-editor-data-page.c
+++ b/src/object-editor-data-page.c
@@ -153,7 +153,7 @@ gl_object_editor_set_data (glObjectEditor      *editor,
 
         gtk_widget_set_sensitive (editor->priv->data_key_radio, merge_flag);
  
-        if (!text_node->field_flag) {
+        if (!text_node->field_flag || !merge_flag) {
  
                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
                                               (editor->priv->data_literal_radio), TRUE); 
diff --git a/src/object-editor-fill-page.c b/src/object-editor-fill-page.c
index b9ea1ac..ba4f9ab 100644
--- a/src/object-editor-fill-page.c
+++ b/src/object-editor-fill-page.c
@@ -141,7 +141,7 @@ gl_object_editor_set_fill_color (glObjectEditor      *editor,
 
 	}
 	
-	if (!color_node->field_flag) {
+	if (!color_node->field_flag || !merge_flag) {
 		gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 						  (editor->priv->fill_color_radio), TRUE); 
 		gtk_widget_set_sensitive (editor->priv->fill_color_combo, TRUE);
diff --git a/src/object-editor-image-page.c b/src/object-editor-image-page.c
index de649ab..d52c1b4 100644
--- a/src/object-editor-image-page.c
+++ b/src/object-editor-image-page.c
@@ -157,7 +157,7 @@ gl_object_editor_set_image (glObjectEditor      *editor,
 
         gtk_widget_set_sensitive (editor->priv->img_key_radio, merge_flag);
  
-        if (!text_node->field_flag) {
+        if (!text_node->field_flag || !merge_flag) {
  
                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
                                               (editor->priv->img_file_radio), TRUE); 
diff --git a/src/object-editor-line-page.c b/src/object-editor-line-page.c
index 1186969..8ba5316 100644
--- a/src/object-editor-line-page.c
+++ b/src/object-editor-line-page.c
@@ -188,7 +188,7 @@ gl_object_editor_set_line_color (glObjectEditor      *editor,
 
 	}	
 	
-	if (!color_node->field_flag) {
+	if (!color_node->field_flag || !merge_flag) {
 		gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 						  (editor->priv->line_color_radio), TRUE); 
 		gtk_widget_set_sensitive (editor->priv->line_color_combo, TRUE);
diff --git a/src/object-editor-shadow-page.c b/src/object-editor-shadow-page.c
index d10a159..e89ecf7 100644
--- a/src/object-editor-shadow-page.c
+++ b/src/object-editor-shadow-page.c
@@ -228,7 +228,7 @@ gl_object_editor_set_shadow_color (glObjectEditor      *editor,
 
 	}
 	
-	if (!color_node->field_flag) {
+	if (!color_node->field_flag || !merge_flag) {
 		gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 						  (editor->priv->shadow_color_radio), TRUE); 
 		gtk_widget_set_sensitive (editor->priv->shadow_color_combo, TRUE);
diff --git a/src/object-editor-text-page.c b/src/object-editor-text-page.c
index 3c19632..ab26252 100644
--- a/src/object-editor-text-page.c
+++ b/src/object-editor-text-page.c
@@ -465,7 +465,7 @@ gl_object_editor_set_text_color (glObjectEditor      *editor,
                                           text_color_node->color);
 	}
 	
-	if (!text_color_node->field_flag) {
+	if (!text_color_node->field_flag || !merge_flag) {
 		gl_debug (DEBUG_EDITOR, "color field false");
 		gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 						  (editor->priv->text_color_radio), TRUE); 
diff --git a/src/xml-label.c b/src/xml-label.c
index 324169d..616aea5 100644
--- a/src/xml-label.c
+++ b/src/xml-label.c
@@ -819,13 +819,16 @@ xml_parse_merge_fields (xmlNodePtr  node,
 	merge = gl_merge_new (string);
 	g_free (string);
 
-	string = lgl_xml_get_prop_string (node, "src", NULL);
-	gl_merge_set_src (merge, string);
-	g_free (string);
+        if (merge)
+        {
+                string = lgl_xml_get_prop_string (node, "src", NULL);
+                gl_merge_set_src (merge, string);
+                g_free (string);
 
-	gl_label_set_merge (label, merge);
+                gl_label_set_merge (label, merge);
 
-	g_object_unref (G_OBJECT(merge));
+                g_object_unref (G_OBJECT(merge));
+        }
 
 	gl_debug (DEBUG_XML, "END");
 }