6768695d14
Put this class into its own header so that it could be reused from other places. No real changes.
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/gtk/private/treeview.h
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// Purpose: Private helpers for wxGTK controls using GtkTreeView
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// Author: Vadim Zeitlin
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// Created: 2016-02-06 (extracted from src/gtk/dataview.cpp)
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// Copyright: (c) 2016 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _GTK_PRIVATE_TREEVIEW_H_
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#define _GTK_PRIVATE_TREEVIEW_H_
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// ----------------------------------------------------------------------------
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// wxGtkTreePath: RAII wrapper for GtkTreePath
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// ----------------------------------------------------------------------------
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// Usually this object is initialized with the associated GtkTreePath
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// immediately when it's constructed but it can also be changed later either by
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// using Assign() or by getting the pointer to the internally stored pointer
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// value using ByRef(). The latter should be avoided but is very convenient
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// when using GTK functions with GtkTreePath output parameters.
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class wxGtkTreePath
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{
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public:
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// Ctor takes ownership of the given path and will free it if non-NULL.
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wxGtkTreePath(GtkTreePath *path = NULL) : m_path(path) { }
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// Creates a tree path for the given string path.
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wxGtkTreePath(const gchar *strpath)
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: m_path(gtk_tree_path_new_from_string(strpath))
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{
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}
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// Set the stored pointer if not done by ctor.
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void Assign(GtkTreePath *path)
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{
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wxASSERT_MSG( !m_path, "shouldn't be already initialized" );
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m_path = path;
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}
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// Return the pointer to the internally stored pointer. This should only be
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// used to initialize the object by passing it to some GTK function.
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GtkTreePath **ByRef()
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{
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wxASSERT_MSG( !m_path, "shouldn't be already initialized" );
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return &m_path;
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}
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operator GtkTreePath *() const { return m_path; }
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~wxGtkTreePath() { if ( m_path ) gtk_tree_path_free(m_path); }
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private:
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GtkTreePath *m_path;
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wxDECLARE_NO_COPY_CLASS(wxGtkTreePath);
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};
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#endif // _GTK_PRIVATE_TREEVIEW_H_
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