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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_COMMON_GTK_TREE_H_
#define CHROME_COMMON_GTK_TREE_H_
#include <gtk/gtk.h>
#include "app/table_model_observer.h"
#include "base/basictypes.h"
class TableModel;
namespace gtk_tree {
// Get the row number corresponding to |path|.
gint GetRowNumForPath(GtkTreePath* path);
// Get the row number corresponding to |iter|.
gint GetRowNumForIter(GtkTreeModel* model, GtkTreeIter* iter);
// Get the row number in the child tree model corresponding to |sort_path| in
// the parent tree model.
gint GetTreeSortChildRowNumForPath(GtkTreeModel* sort_model,
GtkTreePath* sort_path);
// Select the given row by number.
void SelectAndFocusRowNum(int row, GtkTreeView* tree_view);
// A helper class for populating a GtkListStore from a TableModel.
class ModelAdapter : public TableModelObserver {
public:
class Delegate {
public:
// Should fill in the column and row.
virtual void SetColumnValues(int row, GtkTreeIter* iter) = 0;
// Called after any change to the TableModel. Overriding optional.
virtual void OnAnyModelUpdate() {}
// When the TableModel has been completely changed, called by OnModelChanged
// after clearing the list store. Can be overriden by the delegate if it
// needs to do extra initialization before the list store is populated.
virtual void OnModelChanged() {}
protected:
~Delegate() {}
};
// |table_model| may be NULL.
explicit ModelAdapter(Delegate* delegate, GtkListStore* list_store,
TableModel* table_model);
virtual ~ModelAdapter() {}
// Replace the TableModel with a different one. If the list store currenty
// has items this would cause weirdness, so this should generally only be
// called during the Delegate's OnModelChanged call, or if the adapter was
// created with a NULL |table_model|.
void SetModel(TableModel* table_model);
// TableModelObserver implementation.
virtual void OnModelChanged();
virtual void OnItemsChanged(int start, int length);
virtual void OnItemsAdded(int start, int length);
virtual void OnItemsRemoved(int start, int length);
private:
// Add the values from |row| of the TableModel.
void AddNodeToList(int row);
Delegate* delegate_;
GtkListStore* list_store_;
TableModel* table_model_;
DISALLOW_COPY_AND_ASSIGN(ModelAdapter);
};
} // namespace gtk_tree
#endif // CHROME_COMMON_GTK_TREE_H_
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