Added frozen_count variable to know not to show the cursor while a change

2001-10-31  Christopher James Lahey  <clahey@ximian.com>

	* e-table-item.c, e-table-item.h: Added frozen_count variable to
	know not to show the cursor while a change is going on.

	* e-table-model.c, e-table-model.h, e-tree-model.c,
	e-tree-model.h: Added a model_no_change signal to pair with a
	pre_change if there's no change.

	* e-table-selection-model.h: Removed an unused frozen field here.

	* e-table-sorted.c, e-table-subset.c, e-table-subset.h,
	e-table-without.c, e-tree-memory.c, e-tree-sorted.c,
	e-tree-table-adapter.c: Made sure pre_changes were all matched by
	some change.  Proxy no_change signal where appropriate.

	* e-tree-selection-model.c: Keep track of the frozen_count
	variable to know whether a change is going on.

svn path=/trunk/; revision=14523

1 files changed, 44 insertions, 6 deletions

diff --git a/widgets/table/e-table-model.c b/widgets/table/e-table-model.c
index 774eb19c3d..89dce2756c 100644
--- a/widgets/table/e-table-model.c
+++ b/widgets/table/e-table-model.c
@@ -38,6 +38,7 @@ d(static gint depth = 0);
 static GtkObjectClass *e_table_model_parent_class;
 
 enum {
+	MODEL_NO_CHANGE,
 	MODEL_CHANGED,
 	MODEL_PRE_CHANGE,
 	MODEL_ROW_CHANGED,
@@ -272,6 +273,15 @@ e_table_model_class_init (GtkObjectClass *object_class)
 	
 	object_class->destroy = e_table_model_destroy;
 
+	e_table_model_signals [MODEL_NO_CHANGE] =
+		gtk_signal_new ("model_no_change",
+				GTK_RUN_LAST,
+				E_OBJECT_CLASS_TYPE (object_class),
+				GTK_SIGNAL_OFFSET (ETableModelClass, model_no_change),
+				gtk_marshal_NONE__NONE,
+				GTK_TYPE_NONE, 0);
+
+
 	e_table_model_signals [MODEL_CHANGED] =
 		gtk_signal_new ("model_changed",
 				GTK_RUN_LAST,
@@ -341,6 +351,7 @@ e_table_model_class_init (GtkObjectClass *object_class)
 	klass->value_is_empty      = NULL;   
 	klass->value_to_string     = NULL;
 
+	klass->model_no_change     = NULL;    
 	klass->model_changed       = NULL;    
 	klass->model_row_changed   = NULL;
 	klass->model_cell_changed  = NULL;
@@ -391,7 +402,7 @@ e_table_model_pre_change (ETableModel *e_table_model)
 	g_return_if_fail (E_IS_TABLE_MODEL (e_table_model));
 	
 	d(print_tabs());
-	d(g_print("Emitting pre_change on model 0x%p.\n", e_table_model));
+	d(g_print("Emitting pre_change on model 0x%p, a %s.\n", e_table_model, gtk_type_name (GTK_OBJECT(e_table_model)->klass->type)));
 	d(depth++);
 	gtk_signal_emit (GTK_OBJECT (e_table_model),
 			 e_table_model_signals [MODEL_PRE_CHANGE]);
@@ -399,6 +410,33 @@ e_table_model_pre_change (ETableModel *e_table_model)
 }
 
 /**
+ * e_table_model_no_change:
+ * @e_table_model: the table model to notify of the lack of a change
+ *
+ * Use this function to notify any views of this table model that
+ * the contents of the table model have changed.  This will emit
+ * the signal "model_no_change" on the @e_table_model object.
+ *
+ * It is preferable to use the e_table_model_row_changed() and
+ * the e_table_model_cell_changed() to notify of smaller changes
+ * than to invalidate the entire model, as the views might have
+ * ways of caching the information they render from the model.
+ */
+void
+e_table_model_no_change (ETableModel *e_table_model)
+{
+	g_return_if_fail (e_table_model != NULL);
+	g_return_if_fail (E_IS_TABLE_MODEL (e_table_model));
+	
+	d(print_tabs());
+	d(g_print("Emitting model_no_change on model 0x%p, a %s.\n", e_table_model, gtk_type_name (GTK_OBJECT(e_table_model)->klass->type)));
+	d(depth++);
+	gtk_signal_emit (GTK_OBJECT (e_table_model),
+			 e_table_model_signals [MODEL_NO_CHANGE]);
+	d(depth--);
+}
+
+/**
  * e_table_model_changed:
  * @e_table_model: the table model to notify of the change
  *
@@ -418,7 +456,7 @@ e_table_model_changed (ETableModel *e_table_model)
 	g_return_if_fail (E_IS_TABLE_MODEL (e_table_model));
 	
 	d(print_tabs());
-	d(g_print("Emitting model_changed on model 0x%p.\n", e_table_model));
+	d(g_print("Emitting model_changed on model 0x%p, a %s.\n", e_table_model, gtk_type_name (GTK_OBJECT(e_table_model)->klass->type)));
 	d(depth++);
 	gtk_signal_emit (GTK_OBJECT (e_table_model),
 			 e_table_model_signals [MODEL_CHANGED]);
@@ -442,7 +480,7 @@ e_table_model_row_changed (ETableModel *e_table_model, int row)
 	g_return_if_fail (E_IS_TABLE_MODEL (e_table_model));
 
 	d(print_tabs());
-	d(g_print("Emitting row_changed on model 0x%p, row %d.\n", e_table_model, row));
+	d(g_print("Emitting row_changed on model 0x%p, a %s, row %d.\n", e_table_model, gtk_type_name (GTK_OBJECT(e_table_model)->klass->type), row));
 	d(depth++);
 	gtk_signal_emit (GTK_OBJECT (e_table_model),
 			 e_table_model_signals [MODEL_ROW_CHANGED], row);
@@ -467,7 +505,7 @@ e_table_model_cell_changed (ETableModel *e_table_model, int col, int row)
 	g_return_if_fail (E_IS_TABLE_MODEL (e_table_model));
 
 	d(print_tabs());
-	d(g_print("Emitting cell_changed on model 0x%p, row %d, col %d.\n", e_table_model, row, col));
+	d(g_print("Emitting cell_changed on model 0x%p, a %s, row %d, col %d.\n", e_table_model, gtk_type_name (GTK_OBJECT(e_table_model)->klass->type), row, col));
 	d(depth++);
 	gtk_signal_emit (GTK_OBJECT (e_table_model),
 			 e_table_model_signals [MODEL_CELL_CHANGED], col, row);
@@ -492,7 +530,7 @@ e_table_model_rows_inserted (ETableModel *e_table_model, int row, int count)
 	g_return_if_fail (E_IS_TABLE_MODEL (e_table_model));
 
 	d(print_tabs());
-	d(g_print("Emitting row_inserted on model 0x%p, row %d.\n", e_table_model, row));
+	d(g_print("Emitting row_inserted on model 0x%p, a %s, row %d.\n", e_table_model, gtk_type_name (GTK_OBJECT(e_table_model)->klass->type), row));
 	d(depth++);
 	gtk_signal_emit (GTK_OBJECT (e_table_model),
 			 e_table_model_signals [MODEL_ROWS_INSERTED], row, count);
@@ -532,7 +570,7 @@ e_table_model_rows_deleted (ETableModel *e_table_model, int row, int count)
 	g_return_if_fail (E_IS_TABLE_MODEL (e_table_model));
 
 	d(print_tabs());
-	d(g_print("Emitting row_deleted on model 0x%p, row %d.\n", e_table_model, row));
+	d(g_print("Emitting row_deleted on model 0x%p, a %s, row %d.\n", e_table_model, gtk_type_name (GTK_OBJECT(e_table_model)->klass->type), row));
 	d(depth++);
 	gtk_signal_emit (GTK_OBJECT (e_table_model),
 			 e_table_model_signals [MODEL_ROWS_DELETED], row, count);