sample2.d

module app;

import std.stdio;
import std.experimental.logger: trace;
import std.conv;

import gio.Application : GApplication = Application;
import gtk.Main;
import gtk.Application;

import gtk.ListBox;
import glib.ListG;
import gtk.ListBoxRow;

class GtkDApp : Application {

public:
    this(){   
        ApplicationFlags flags = ApplicationFlags.FLAGS_NONE;
        super("org.gnome.projectname", flags);
        this.addOnActivate(&onAppActivate);
        this.window = null;
    }

private:

    AppWindow window;

    void onAppActivate(GApplication app){
        trace("Activate App Signal");
        if (!app.getIsRemote()){
            this.window = new AppWindow(this);
        }

        this.window.present();
    }
}        
        
void main(string[] args) {
    Main.init(args);
    auto app = new GtkDApp();
    app.run(args);
}  

import core.stdc.stdlib;

import std.functional;
import std.experimental.logger;

import gtk.Widget, gdk.Event;
import gtk.ApplicationWindow;
import gtk.Box;
import gtk.Entry;
import gtk.Label;
import gtk.Button;
import gtk.Statusbar, gtk.Separator;


class AppWindow: ApplicationWindow {
    
    Box vbox1;
    Label label1;
    Button button1;

    ListBox listbox;
    Box fake_header;
    Box mcontent;
    
    this(gtk.Application.Application application){
        
        super(application);

        vbox1 = new Box(GtkOrientation.VERTICAL, 5);

        this.addOnDelete(delegate bool(Event e, Widget w) {
            exit(0);
            return true;
        });
        
        listbox = new ListBox;
        listbox.setSelectionMode(GtkSelectionMode.NONE);

        populateList();
        
        mcontent = new Box(GtkOrientation.VERTICAL, 3);
        vbox1.add(mcontent);

        vbox1.add(listbox);
        makeHeader();
        mcontent.packStart(fake_header, false, true, 0);
        mcontent.reorderChild(fake_header, 0);
        mcontent.showAll();
        
        listbox.showAll();

        auto ename = new Entry();
        auto eage = new Entry();
        auto addBut = new Button("Add");

        addBut.addOnClicked((Button aux){
            addRecord(ename.getText, eage.getText.to!uint);
        });

        auto hbox1 = new Box(GtkOrientation.HORIZONTAL, 5);
        
        hbox1.add(ename);
        hbox1.add(eage);
        hbox1.add(addBut);
        
        vbox1.add(hbox1);

        add(vbox1);

        showAll();
    }

    void populateList(){
        auto a = new ListBoxRowWithData(this, "Alain", 20);
        auto b = new ListBoxRowWithData(this, "Eddy", 30);
        auto c = new ListBoxRowWithData(this, "Foo", 39);
        listbox.add(cast(ListBoxRow)a);
        listbox.add(cast(ListBoxRow)b);
        listbox.add(cast(ListBoxRow)c);

    }

    void addRecord(string name, uint age){
        auto a = new ListBoxRowWithData(this, name, age);
        listbox.add(cast(ListBoxRow)a);
    }

    void makeHeader(){
        if(fake_header is null){
            fake_header = new Box(Orientation.HORIZONTAL, 0);
            auto it = new Label("Name");
            auto mi = new Label("Age");
            auto bu = new Label("Action");
            
            fake_header.packStart (it, true, true, 0);
            fake_header.packStart (mi, true, true, 0);
            fake_header.packStart (bu, true, true, 0);
            
            
            fake_header.addOnShow(delegate void(Widget wid){
                auto row = cast(ListBoxRowWithData)(listbox.getRowAtIndex(0));
                row.init_widths();
                
                it.setSizeRequest(ListBoxRowWithData.name_width, -1);
                mi.setSizeRequest(ListBoxRowWithData.age_width, -1);
                bu.setSizeRequest(ListBoxRowWithData.bt_width, -1);
            });
            
            fake_header.showAll();
        }

    }

}

class ListBoxRowWithData: ListBoxRow {
private:
    AppWindow ctx;
public:
    string name;
    uint age;
    
    Label labelName;
    Label labelAge;
    
    Button delEntry;
    
    static int name_width;
    static int age_width;
    static int bt_width;
    
    this(AppWindow ctx, string name, uint age) {
        this.ctx = ctx;
        this.name = name;
        this.age = age;
        
        labelName = new Label(name); labelName.setSizeRequest(100, -1);
        labelAge = new Label(age.to!string); labelAge.setSizeRequest(100, -1);
        delEntry = new Button(); delEntry.setLabel("delete"); delEntry.setSizeRequest(100, -1);
        
        delEntry.addOnClicked(delegate void(Button _){
            ctx.listbox.remove(this);
        });
        
        Box inner_box = new Box (Orientation.HORIZONTAL, 0);
        inner_box.packStart (labelName, true, true, 0);
        inner_box.packStart (labelAge, true, true, 0);
        inner_box.packStart (delEntry, true, true, 0);
        
        this.add(inner_box);
        showAll();
    }
    
    void init_widths(){
        if(name_width == 0){
            name_width = labelName.getAllocatedWidth() > name_width ? labelName.getAllocatedWidth(): name_width;
            age_width = labelAge.getAllocatedWidth() > age_width ? labelAge.getAllocatedWidth(): age_width;
            bt_width = delEntry.getAllocatedWidth() > bt_width ? delEntry.getAllocatedWidth(): bt_width;
        }
    }
    
}