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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_BROWSER_GTK_GTK_TREE_H_
#define CHROME_BROWSER_GTK_GTK_TREE_H_
#include <gtk/gtk.h>
#include <set>
#include <vector>
#include "app/table_model_observer.h"
#include "app/tree_model.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);
// Remove the row and all its children from the |tree_store|. If there is a
// following row, |iter| will be updated to point to the it and the return value
// will be true, otherwise the return will be false and |iter| is no longer
// valid.
bool RemoveRecursively(GtkTreeStore* tree_store, GtkTreeIter* iter);
// Writes all the indexes of selected rows into |out|.
void GetSelectedIndices(GtkTreeSelection* selection, std::set<int>* out);
// A helper class for populating a GtkListStore from a TableModel.
class TableAdapter : 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 but before the corresponding
// change to the GtkListStore.
virtual void OnAnyModelUpdateStart() {}
// Called after any change to the TableModel.
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:
virtual ~Delegate() {}
};
// |table_model| may be NULL.
explicit TableAdapter(Delegate* delegate, GtkListStore* list_store,
TableModel* table_model);
virtual ~TableAdapter() {}
// 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(TableAdapter);
};
// A helper class for populating a GtkTreeStore from a TreeModel.
// TODO(mattm): support SetRootShown(true)
// TODO(mattm): implement TreeNodeChildrenReordered
class TreeAdapter : public TreeModelObserver {
public:
// Column ids for |tree_store_|.
enum {
COL_ICON,
COL_TITLE,
COL_NODE_PTR,
COL_COUNT,
};
class Delegate {
public:
// Called after any change to the TreeModel but before the corresponding
// change to the GtkTreeStore.
virtual void OnAnyModelUpdateStart() {}
// Called after any change to the GtkTreeStore.
virtual void OnAnyModelUpdate() {}
};
TreeAdapter(Delegate* delegate, TreeModel* tree_model);
virtual ~TreeAdapter();
// Populate the tree store from the |tree_model_|.
void Init();
// Return the tree store.
GtkTreeStore* tree_store() { return tree_store_; }
// Get the TreeModelNode corresponding to iter in the tree store.
TreeModelNode* GetNode(GtkTreeIter* iter);
// TreeModelObserver implementation.
virtual void TreeNodesAdded(TreeModel* model,
TreeModelNode* parent,
int start,
int count);
virtual void TreeNodesRemoved(TreeModel* model,
TreeModelNode* parent,
int start,
int count);
virtual void TreeNodeChildrenReordered(TreeModel* model,
TreeModelNode* parent);
virtual void TreeNodeChanged(TreeModel* model, TreeModelNode* node);
private:
// Fill the tree store values for a given node.
void FillRow(GtkTreeIter* iter, TreeModelNode* node);
// Fill the tree store for a row and all its descendants.
void Fill(GtkTreeIter* parent_iter, TreeModelNode* parent_node);
// Get the GtkTreePath in the tree store for the given node.
// The returned path should be freed with gtk_tree_path_free.
GtkTreePath* GetTreePath(TreeModelNode* node);
// Get the GtkTreeIter in the tree store for the given node.
bool GetTreeIter(TreeModelNode* node, GtkTreeIter* iter);
Delegate* delegate_;
GtkTreeStore* tree_store_;
TreeModel* tree_model_;
std::vector<GdkPixbuf*> pixbufs_;
};
} // namespace gtk_tree
#endif // CHROME_BROWSER_GTK_GTK_TREE_H_
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