I'd like to filter Treeview data according to user input. How should I do that?

When I run this program it gives segmentation fault error.

import gtk.Main;
import gtk.MainWindow;
import gtk.Box;
import gtk.Entry;
import gtk.EditableIF;
import gtk.TreeModelFilter;
import gtk.TreeView;
import gtk.HBox;
import gtk.VBox;
import gtk.Label;
import gtk.ListStore;
import gtk.TreeViewColumn;
import gtk.CellRendererText;
import gtk.TreeModel;
import gtk.TreeIter;

import std.conv;
import std.stdio;

class MyWindow: MainWindow
{
    Box mainBox;
    Entry filterEntry;
    TreeModelFilter filter;
    TreeIter iter;

    this()
    {
        super("TreeView Example");
        setSizeRequest(500, 200);
        filterEntry = new Entry();
        auto filterLabel= new Label("Artist search");
        auto tree = new TreeView();
        auto box = new VBox(false, 0);

        auto dataModel = new ListStore([GType.STRING, GType.STRING]);

        auto artistColumn = new TreeViewColumn("Artist", new CellRendererText(), "text", 0);
        tree.appendColumn(artistColumn);
        auto songColumn = new TreeViewColumn("Song title", new CellRendererText(), "text", 1);
        tree.appendColumn(songColumn);

        iter = dataModel.createIter();
        dataModel.setValue(iter, 0, "This is a test");
        dataModel.setValue(iter, 1, "Sample song");

        iter = dataModel.createIter();
        dataModel.setValue(iter, 0, "This is a test");
        dataModel.setValue(iter, 1, "Another song");

        iter = dataModel.createIter();
        dataModel.setValue(iter, 0, "Another artist");
        dataModel.setValue(iter, 1, "Test song");

        filter = new TreeModelFilter(dataModel, null);
        filter.setVisibleFunc(cast(GtkTreeModelFilterVisibleFunc) & filterTree, null, null);

        tree.setModel(filter);

        auto mainBox = new HBox(false, 0);
        mainBox.packStart(filterLabel, false, false, 5);
        mainBox.packStart(filterEntry, true, true, 5);
        box.packStart(mainBox, false, false, 5);
        box.packStart(tree, true, true, 5);

        add(box);

        showAll();
    }

    bool filterTree(GtkTreeModelFilter gtkModel, GtkTreeIter gtkIter)
    {
        auto model1 = new TreeModelFilter(&gtkModel, false);
        auto it1 = new TreeIter(&gtkIter, false);
        string artistName = to!string(model1.getValue(it1, 0));

        return true;
    }
    void onFilterEntryTextChanged(EditableIF filterEntry)
    {
        filter.refilter();
    }

    // void onFilterEntryTextChanged(ParamSpec param, ObjectG object)
    // {
    //     filter.refilter();
    // }
}

void main(string[] args)
{
    Main.init(args);
    new MyWindow();
    Main.run();
}

On 01/17/2017 01:25 AM, Erdem wrote:

> void main(string[] args)
> {
>     Main.init(args);
>     new MyWindow();
>     Main.run();
> }

I have no experience with Gtkd but the code inside main looks fundamentally wrong. One would expect you to do something with the MyWindow object:

    auto w = new MyWindow();

And then use 'w' but I don't know how.

Ali

On Tuesday, 17 January 2017 at 19:07:21 UTC, Ali Çehreli wrote:
> On 01/17/2017 01:25 AM, Erdem wrote:
>
> > void main(string[] args)
> > {
> >     Main.init(args);
> >     new MyWindow();
> >     Main.run();
> > }
>
> I have no experience with Gtkd but the code inside main looks fundamentally wrong. One would expect you to do something with the MyWindow object:
>
>     auto w = new MyWindow();
>
> And then use 'w' but I don't know how.
>
> Ali

Thanks. The problem is already solved. You may look at this thread:

http://ddili.org/forum/post/12453

Ben D diline biraz önce göndermiştim :)

Erdem