typedef struct _GtkWxTreeModel GtkWxTreeModel;
}
+// ----------------------------------------------------------------------------
+// wxGtkTreePath: self-destroying GtkTreePath
+// ----------------------------------------------------------------------------
+
+// Usually this object is initialized with the associated GtkTreePath
+// immediately when it's constructed but it can also be changed later either by
+// using Assign() or by getting the pointer to the internally stored pointer
+// value using ByRef(). The latter should be avoided but is very convenient
+// when using GTK functions with GtkTreePath output parameters.
+class wxGtkTreePath
+{
+public:
+ // Ctor takes ownership of the given path and will free it if non-NULL.
+ wxGtkTreePath(GtkTreePath *path = NULL) : m_path(path) { }
+
+ // Creates a tree path for the given string path.
+ wxGtkTreePath(const gchar *strpath)
+ : m_path(gtk_tree_path_new_from_string(strpath))
+ {
+ }
+
+ // Set the stored pointer if not done by ctor.
+ void Assign(GtkTreePath *path)
+ {
+ wxASSERT_MSG( !m_path, "shouldn't be already initialized" );
+
+ m_path = path;
+ }
+
+ // Return the pointer to the internally stored pointer. This should only be
+ // used to initialize the object by passing it to some GTK function.
+ GtkTreePath **ByRef()
+ {
+ wxASSERT_MSG( !m_path, "shouldn't be already initialized" );
+
+ return &m_path;
+ }
+
+
+ operator GtkTreePath *() const { return m_path; }
+
+ ~wxGtkTreePath() { if ( m_path ) gtk_tree_path_free(m_path); }
+
+private:
+ GtkTreePath *m_path;
+
+ wxDECLARE_NO_COPY_CLASS(wxGtkTreePath);
+};
+
+// ----------------------------------------------------------------------------
+// wxGtkTreeSelectionLock: prevent selection from changing during the
+// lifetime of this object
+// ----------------------------------------------------------------------------
+
+// Implementation note: it could be expected that setting the selection
+// function in this class ctor and resetting it back to the old value in its
+// dtor would work. However currently gtk_tree_selection_get_select_function()
+// can't be passed NULL (see https://bugzilla.gnome.org/show_bug.cgi?id=626276)
+// so we can't do this. Instead, we always use the selection function (which
+// imposes extra overhead, albeit minimal one, on all selection operations) and
+// just set/reset the flag telling it whether it should allow or forbid the
+// selection.
+//
+// Also notice that currently only a single object of this class may exist at
+// any given moment. It's just simpler like this and we don't need anything
+// more for now.
+
+extern "C"
+gboolean wxdataview_selection_func(GtkTreeSelection * WXUNUSED(selection),
+ GtkTreeModel * WXUNUSED(model),
+ GtkTreePath * WXUNUSED(path),
+ gboolean WXUNUSED(path_currently_selected),
+ gpointer data)
+{
+ return data == NULL;
+}
+
+class wxGtkTreeSelectionLock
+{
+public:
+ wxGtkTreeSelectionLock(GtkTreeSelection *selection)
+ : m_selection(selection)
+ {
+ wxASSERT_MSG( !ms_instance, "this class is not reentrant currently" );
+
+ ms_instance = this;
+
+ CheckCurrentSelectionFunc(NULL);
+
+ // Pass some non-NULL pointer as "data" for the callback, it doesn't
+ // matter what it is as long as it's non-NULL.
+ gtk_tree_selection_set_select_function(selection,
+ wxdataview_selection_func,
+ this,
+ NULL);
+ }
+
+ ~wxGtkTreeSelectionLock()
+ {
+ CheckCurrentSelectionFunc(wxdataview_selection_func);
+
+ gtk_tree_selection_set_select_function(m_selection,
+ wxdataview_selection_func,
+ NULL,
+ NULL);
+
+ ms_instance = NULL;
+ }
+
+private:
+ void CheckCurrentSelectionFunc(GtkTreeSelectionFunc func)
+ {
+ // We can only use gtk_tree_selection_get_select_function() with 2.14+
+ // so check for its availability both during compile- and run-time.
+#if GTK_CHECK_VERSION(2, 14, 0)
+ if ( gtk_check_version(2, 14, 0) != NULL )
+ return;
+
+ // If this assert is triggered, it means the code elsewhere has called
+ // gtk_tree_selection_set_select_function() but currently doing this
+ // breaks this class so the code here needs to be changed.
+ wxASSERT_MSG
+ (
+ gtk_tree_selection_get_select_function(m_selection) == func,
+ "selection function has changed unexpectedly, review this code!"
+ );
+#endif // GTK+ 2.14+
+
+ wxUnusedVar(func);
+ }
+
+ static wxGtkTreeSelectionLock *ms_instance;
+
+ GtkTreeSelection * const m_selection;
+
+ wxDECLARE_NO_COPY_CLASS(wxGtkTreeSelectionLock);
+};
+
+wxGtkTreeSelectionLock *wxGtkTreeSelectionLock::ms_instance = NULL;
+
//-----------------------------------------------------------------------------
// wxDataViewCtrlInternal
//-----------------------------------------------------------------------------
WX_DECLARE_LIST(wxDataViewItem, ItemList);
WX_DEFINE_LIST(ItemList)
-class WXDLLIMPEXP_ADV wxDataViewCtrlInternal
+class wxDataViewCtrlInternal
{
public:
wxDataViewCtrlInternal( wxDataViewCtrl *owner, wxDataViewModel *wx_model, GtkWxTreeModel *gtk_model );
{
GtkWxCellRendererText *wxgtk_renderer = (GtkWxCellRendererText *) gtk_renderer;
wxDataViewRenderer *wx_renderer = wxgtk_renderer->wx_renderer;
+ wxDataViewColumn *column = wx_renderer->GetOwner();
- GtkTreePath *treepath = gtk_tree_path_new_from_string( path );
wxDataViewItem
- item(wx_renderer->GetOwner()->GetOwner()->GTKPathToItem(treepath));
- gtk_tree_path_free( treepath );
+ item(column->GetOwner()->GTKPathToItem(wxGtkTreePath(path)));
- wxDataViewColumn *column = wx_renderer->GetOwner();
wxDataViewCtrl *dv = column->GetOwner();
wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_START_EDITING, dv->GetId() );
event.SetDataViewColumn( column );
event.SetModel( dv->GetModel() );
- event.SetColumn( wx_renderer->GetOwner()->GetModelColumn() );
+ event.SetColumn( column->GetModelColumn() );
event.SetItem( item );
dv->HandleWindowEvent( event );
// wxRect renderrect(wxRectFromGDKRect(&rect));
wxRect renderrect(wxRectFromGDKRect(cell_area));
- GtkTreePath *treepath = gtk_tree_path_new_from_string( path );
- wxDataViewItem item(cell->GetOwner()->GetOwner()->GTKPathToItem(treepath));
- gtk_tree_path_free( treepath );
+ wxDataViewItem
+ item(cell->GetOwner()->GetOwner()->GTKPathToItem(wxGtkTreePath(path)));
cell->StartEditing( item, renderrect );
wxRect renderrect(wxRectFromGDKRect(&rect));
- wxDataViewModel *model = cell->GetOwner()->GetOwner()->GetModel();
+ wxDataViewCtrl * const ctrl = cell->GetOwner()->GetOwner();
+ wxDataViewModel *model = ctrl->GetModel();
- GtkTreePath *treepath = gtk_tree_path_new_from_string( path );
- wxDataViewItem item(cell->GetOwner()->GetOwner()->GTKPathToItem(treepath));
- gtk_tree_path_free( treepath );
+ wxDataViewItem item(ctrl->GTKPathToItem(wxGtkTreePath(path)));
unsigned int model_col = cell->GetOwner()->GetModelColumn();
GtkTreeIter iter;
iter.stamp = m_wxgtk_model->stamp;
- iter.user_data = (gpointer) item.GetID();
+ iter.user_data = item.GetID();
- GtkTreePath *path = wxgtk_tree_model_get_path(
- GTK_TREE_MODEL(m_wxgtk_model), &iter );
+ wxGtkTreePath path(wxgtk_tree_model_get_path(
+ GTK_TREE_MODEL(m_wxgtk_model), &iter ));
gtk_tree_model_row_inserted(
GTK_TREE_MODEL(m_wxgtk_model), path, &iter);
- gtk_tree_path_free (path);
return true;
}
GtkTreeIter iter;
iter.stamp = m_wxgtk_model->stamp;
iter.user_data = (gpointer) item.GetID();
- GtkTreePath *path = wxgtk_tree_model_get_path(
- GTK_TREE_MODEL(m_wxgtk_model), &iter );
+ wxGtkTreePath path(wxgtk_tree_model_get_path(
+ GTK_TREE_MODEL(m_wxgtk_model), &iter ));
#else
// so get the path from the parent
GtkTreeIter iter;
iter.stamp = m_wxgtk_model->stamp;
iter.user_data = (gpointer) parent.GetID();
- GtkTreePath *path = wxgtk_tree_model_get_path(
- GTK_TREE_MODEL(m_wxgtk_model), &iter );
+ wxGtkTreePath path(wxgtk_tree_model_get_path(
+ GTK_TREE_MODEL(m_wxgtk_model), &iter ));
// and add the final index ourselves
int index = m_owner->GtkGetInternal()->GetIndexOf( parent, item );
gtk_tree_path_append_index( path, index );
gtk_tree_model_row_deleted(
GTK_TREE_MODEL(m_wxgtk_model), path );
- gtk_tree_path_free (path);
m_owner->GtkGetInternal()->ItemDeleted( parent, item );
iter.stamp = m_wxgtk_model->stamp;
iter.user_data = (gpointer) item.GetID();
- GtkTreePath *path = wxgtk_tree_model_get_path(
- GTK_TREE_MODEL(m_wxgtk_model), &iter );
+ wxGtkTreePath path(wxgtk_tree_model_get_path(
+ GTK_TREE_MODEL(m_wxgtk_model), &iter ));
gtk_tree_model_row_changed(
GTK_TREE_MODEL(m_wxgtk_model), path, &iter );
- gtk_tree_path_free (path);
m_owner->GtkGetInternal()->ItemChanged( item );
GtkTreeIter iter;
iter.stamp = m_wxgtk_model->stamp;
iter.user_data = (gpointer) item.GetID();
- GtkTreePath *path = wxgtk_tree_model_get_path(
- GTK_TREE_MODEL(m_wxgtk_model), &iter );
+ wxGtkTreePath path(wxgtk_tree_model_get_path(
+ GTK_TREE_MODEL(m_wxgtk_model), &iter ));
GdkRectangle cell_area;
gtk_tree_view_get_cell_area( widget, path, gcolumn, &cell_area );
- gtk_tree_path_free( path );
GtkAdjustment* hadjust = gtk_tree_view_get_hadjustment( widget );
double d = gtk_adjustment_get_value( hadjust );
wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_STARTED, dv->GetId() );
event.SetDataViewColumn( column );
event.SetModel( dv->GetModel() );
- GtkTreePath *tree_path = gtk_tree_path_new_from_string( path );
- wxDataViewItem item(dv->GTKPathToItem(tree_path));
- gtk_tree_path_free( tree_path );
+ wxDataViewItem item(dv->GTKPathToItem(wxGtkTreePath(path)));
event.SetItem( item );
dv->HandleWindowEvent( event );
if (!Validate( value ))
return;
- GtkTreePath *path = gtk_tree_path_new_from_string( itempath );
- wxDataViewItem item(GetOwner()->GetOwner()->GTKPathToItem(path));
- gtk_tree_path_free( path );
+ wxDataViewItem
+ item(GetOwner()->GetOwner()->GTKPathToItem(wxGtkTreePath(itempath)));
GtkOnCellChanged(value, item, GetOwner()->GetModelColumn());
}
if (!cell->Validate( value ))
return;
- wxDataViewModel *model = cell->GetOwner()->GetOwner()->GetModel();
+ wxDataViewCtrl * const ctrl = cell->GetOwner()->GetOwner();
+ wxDataViewModel *model = ctrl->GetModel();
- GtkTreePath *gtk_path = gtk_tree_path_new_from_string( path );
- wxDataViewItem item(cell->GetOwner()->GetOwner()->GTKPathToItem(gtk_path));
- gtk_tree_path_free( gtk_path );
+ wxDataViewItem item(ctrl->GTKPathToItem(wxGtkTreePath(path)));
unsigned int model_col = cell->GetOwner()->GetModelColumn();
if (!Validate( value ))
return;
- GtkTreePath *path = gtk_tree_path_new_from_string( itempath );
- wxDataViewItem item(GetOwner()->GetOwner()->GTKPathToItem(path));
- gtk_tree_path_free( path );
+ wxDataViewItem
+ item(GetOwner()->GetOwner()->GTKPathToItem(wxGtkTreePath(itempath)));
GtkOnCellChanged(value, item, GetOwner()->GetModelColumn());
}
iter.user_data = GetItem().GetID();
iter.stamp = m_internal->GetGtkModel()->stamp;
- GtkTreePath *path = m_internal->get_path( &iter );
-
- gtk_tree_model_rows_reordered( gtk_tree_model, path, &iter, new_order );
-
- gtk_tree_path_free (path);
+ gtk_tree_model_rows_reordered( gtk_tree_model,
+ wxGtkTreePath(m_internal->get_path(&iter)), &iter, new_order );
delete [] new_order;
gdk_event->y = y;
}
- GtkTreePath *path = NULL;
+ wxGtkTreePath path;
GtkTreeViewColumn *column = NULL;
gint cell_x = 0;
gint cell_y = 0;
if (gtk_tree_view_get_path_at_pos(
GTK_TREE_VIEW(dv->GtkGetTreeView()),
(int) gdk_event->x, (int) gdk_event->y,
- &path,
+ path.ByRef(),
&column,
&cell_x,
&cell_y))
{
GtkTreeIter iter;
dv->GtkGetInternal()->get_iter( &iter, path );
-
- gtk_tree_path_free( path );
}
}
{
if ((gdk_event->button == 3) && (gdk_event->type == GDK_BUTTON_PRESS))
{
- GtkTreePath *path = NULL;
+ wxGtkTreePath path;
GtkTreeViewColumn *column = NULL;
gint cell_x = 0;
gint cell_y = 0;
if (gtk_tree_view_get_path_at_pos(
GTK_TREE_VIEW(dv->GtkGetTreeView()),
(int) gdk_event->x, (int) gdk_event->y,
- &path,
+ path.ByRef(),
&column,
&cell_x,
&cell_y))
wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, dv->GetId() );
event.SetItem(dv->GTKPathToItem(path));
event.SetModel( dv->GetModel() );
- bool ret = dv->HandleWindowEvent( event );
- gtk_tree_path_free( path );
- return ret;
+ return dv->HandleWindowEvent( event );
}
}
}
m_cols.DeleteContents( true );
}
-bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size,
- long style, const wxValidator& validator )
+bool wxDataViewCtrl::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
{
if (!PreCreation( parent, pos, size ) ||
- !CreateBase( parent, id, pos, size, style, validator ))
+ !CreateBase( parent, id, pos, size, style, validator, name ))
{
wxFAIL_MSG( wxT("wxDataViewCtrl creation failed") );
return false;
{
GtkTreeIter iter;
iter.user_data = item.GetID();
- GtkTreePath *path = m_internal->get_path( &iter );
+ wxGtkTreePath path(m_internal->get_path( &iter ));
gtk_tree_view_expand_row( GTK_TREE_VIEW(m_treeview), path, false );
- gtk_tree_path_free( path );
}
void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
{
GtkTreeIter iter;
iter.user_data = item.GetID();
- GtkTreePath *path = m_internal->get_path( &iter );
+ wxGtkTreePath path(m_internal->get_path( &iter ));
gtk_tree_view_collapse_row( GTK_TREE_VIEW(m_treeview), path );
- gtk_tree_path_free( path );
}
bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
{
GtkTreeIter iter;
iter.user_data = item.GetID();
- GtkTreePath *path = m_internal->get_path( &iter );
- bool res = gtk_tree_view_row_expanded( GTK_TREE_VIEW(m_treeview), path );
- gtk_tree_path_free( path );
+ wxGtkTreePath path(m_internal->get_path( &iter ));
+ return gtk_tree_view_row_expanded( GTK_TREE_VIEW(m_treeview), path );
+}
- return res;
+wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
+{
+ // The tree doesn't have any current item if it hadn't been created yet but
+ // it's arguably not an error to call this function in this case so just
+ // return an invalid item without asserting.
+ if ( !m_treeview )
+ return wxDataViewItem();
+
+ wxGtkTreePath path;
+ gtk_tree_view_get_cursor(GTK_TREE_VIEW(m_treeview), path.ByRef(), NULL);
+
+ return GTKPathToItem(path);
+}
+
+void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
+{
+ wxCHECK_RET( m_treeview,
+ "Current item can't be set before creating the control." );
+
+ // We need to make sure the model knows about this item or the path would
+ // be invalid and gtk_tree_view_set_cursor() would silently do nothing.
+ ExpandAncestors(item);
+
+ // We also need to preserve the existing selection from changing.
+ // Unfortunately the only way to do it seems to use our own selection
+ // function and forbid any selection changes during set cursor call.
+ wxGtkTreeSelectionLock
+ lock(gtk_tree_view_get_selection(GTK_TREE_VIEW(m_treeview)));
+
+ // Do move the cursor now.
+ GtkTreeIter iter;
+ iter.user_data = item.GetID();
+ wxGtkTreePath path(m_internal->get_path( &iter ));
+
+ gtk_tree_view_set_cursor(GTK_TREE_VIEW(m_treeview), path, NULL, FALSE);
}
wxDataViewItem wxDataViewCtrl::GetSelection() const
GtkTreeIter iter;
iter.user_data = (gpointer) item.GetID();
- GtkTreePath *path = m_internal->get_path( &iter );
+ wxGtkTreePath path(m_internal->get_path( &iter ));
gtk_tree_view_scroll_to_cell( GTK_TREE_VIEW(m_treeview), path, NULL, false, 0.0, 0.0 );
- gtk_tree_path_free( path );
}
void wxDataViewCtrl::HitTest(const wxPoint& WXUNUSED(point),
projects / wxWidgets.git / blobdiff