examples/reference/csharp/ui/src/ui_container.cs

/*
 * Efl.UI container examples.
 *
 * Load and pack a selection of containers.
 * Each has its own unique layout and methods which are demonstrated below.
 */

using System;

public class Example
{
    // Create a box container full of buttons
    static Efl.Ui.Box CreateBox(Efl.Ui.Win win)
    {
        Efl.Ui.Box box = new Efl.Ui.Box(win, (Efl.Ui.Box ebox) => {
          // Set distance between contained elements
          ebox.SetPackPadding(5, 0, true);
        });

        for (int i = 1; i <= 4; ++i)
        {
            // Add 4 buttons, one below the other
            new Efl.Ui.Button(win, (Efl.Ui.Button ebutton) => {
              ebutton.SetText($"Boxed {i}");
              if (i == 2)
              {
                // Button 2 has its maximum size limited, so it will be smaller
                ebutton.SetHintMax(new Eina.Size2D(100,50));
              }
              box.DoPack(ebutton);
            });
        }

        return box;
    }

    // Create a simple table layout
    static Efl.Ui.Table CreateTable(Efl.Ui.Win win)
    {
        Efl.Ui.Table table = new Efl.Ui.Table(win, (Efl.Ui.Table etable) => {
          // Table with two columns, that get filled left to right, and then top to bottom
          etable.SetTableColumns(2);
          etable.SetTableDirection(Efl.Ui.Dir.Right, Efl.Ui.Dir.Down);
        });

        for (int i = 1; i <= 4; ++i)
        {
            // Add 4 buttons, following the defined table flow
            new Efl.Ui.Button(win, (Efl.Ui.Button ebutton) => {
              ebutton.SetText($"Table {i}");
              table.DoPack(ebutton);
            });
        }

        // Last button spans two table cells
        new Efl.Ui.Button(win, (Efl.Ui.Button ebutton) => {
          ebutton.SetText("Long Button");
          table.PackTable(ebutton, 0, 2, 2, 1);
        });

        return table;
    }

#if WIN32
    [STAThreadAttribute()]
#endif
    public static void Main()
    {
        // Initialize EFL and all UI components
        Efl.All.Init(Efl.Components.Ui);

        // Create a window and initialize it
        Efl.Ui.Win win = new Efl.Ui.Win(null, (Efl.Ui.Win ewin) => {
            ewin.SetWinType(Efl.Ui.WinType.Basic);
            ewin.SetText("Container demo");
            ewin.SetAutohide(true);
            ewin.HideEvt += (object sender, EventArgs e) => {
              // Exit the EFL main loop
              Efl.Ui.Config.Exit();
            };
        });
        // Give the window an initial size so there is room to resize the panes.
        // Otherwise, all widgets are tightly packed
        win.SetSize(new Eina.Size2D(350,250));

        // Create a vertically-split panes container
        Efl.Ui.Panes vsplit = new Efl.Ui.Panes(win, (Efl.Ui.Panes epanes) => {
          epanes.SetSplitRatio(0.75);
          win.SetContent(epanes);
        });

        // Create some boxes and set them as the content of the first pane of the container
        var box = CreateBox(win);
        Efl.ContentConcrete.static_cast(vsplit.GetPart("first")).SetContent(box);

        // Create a second, horizontally-split panes container and set it as the content of
        // the second pane of the first container
        Efl.Ui.Panes hsplit = new Efl.Ui.Panes(win, (Efl.Ui.Panes epanes) => {
          epanes.SetDirection(Efl.Ui.Dir.Horizontal);
          epanes.SetSplitRatio(0.85);
        });
        Efl.ContentConcrete.static_cast(vsplit.GetPart("second")).SetContent(hsplit);

        // Create a table and set it as the content of the first pane of the horizontal
        // container
        var table = CreateTable(win);
        Efl.ContentConcrete.static_cast(hsplit.GetPart("first")).SetContent(table);

        // Create a button and set it as the content of the second pane of the horizontal
        // container
        Efl.Ui.Button quit_btn = new Efl.Ui.Button(win, (Efl.Ui.Button ebutton) => {
          ebutton.SetText("Quit");
          ebutton.SetHintMax(new Eina.Size2D(150, 30));
          ebutton.ClickedEvt += (object sender, EventArgs e) => {
            // Exit the EFL main loop
            Efl.Ui.Config.Exit();
          };
        });
        Efl.ContentConcrete.static_cast(hsplit.GetPart("second")).SetContent(quit_btn);

        // Start the EFL main loop
        Efl.Ui.Config.Run();

        // Shutdown EFL
        Efl.All.Shutdown();
    }
}