Here is my sample code :
using System;
using System.Collections.Generic;
using Sce.Pss.Core;
using Sce.Pss.Core.Environment;
using Sce.Pss.Core.Graphics;
using Sce.Pss.Core.Input;
using Sce.Pss.HighLevel.UI;
namespace Test
{
public class AppMain
{
private static GraphicsContext graphics;
private static CustomPanel panel;
private static Button button;
private static bool drag;
private static Vector2 memo_pos;
public static void Main (string[] args)
{
Initialize ();
while (true) {
SystemEvents.CheckEvents ();
Update ();
Render ();
}
}
public static void Initialize ()
{
// Set up the graphics system
graphics = new GraphicsContext ();
UISystem.Initialize (graphics);
Scene scene = new Scene();
panel = new CustomPanel();
panel.SetSize(960, 544);
panel.TouchEventReceived += PanelTouchEventReceived;
button = new Button();
button.Text = "Button";
button.SetPosition(100, 100);
panel.AddChildLast(button);
drag = false;
scene.RootWidget.AddChildLast(panel);
UISystem.SetScene (scene, null);
}
static void PanelTouchEventReceived (object sender, TouchEventArgs e)
{
TouchEvent touchEvent = e.TouchEvents.PrimaryTouchEvent;
switch(touchEvent.Type){
case TouchEventType.Down:
if(button.HitTest(touchEvent.WorldPosition)){
drag = true;
memo_pos = touchEvent.WorldPosition;
}
break;
case TouchEventType.Up:
if(drag)
drag = false;
Console.WriteLine(touchEvent.Type.ToString());
break;
case TouchEventType.Move:
if(drag){
button.X += touchEvent.WorldPosition.X - memo_pos.X;
button.Y += touchEvent.WorldPosition.Y - memo_pos.Y;
memo_pos = touchEvent.WorldPosition;
}
break;
}
}
public static void Update ()
{
// Query gamepad for current state
var gamePadData = GamePad.GetData (0);
List<TouchData> list = Touch.GetData (0);
UISystem.Update (list);
}
public static void Render ()
{
// Clear the screen
graphics.SetClearColor (0.0f, 0.0f, 0.0f, 0.0f);
graphics.Clear ();
UISystem.Render ();
// Present the screen
graphics.SwapBuffers ();
}
}
class CustomPanel : Panel {
public CustomPanel(){
HookChildTouchEvent = true;
}
}
} It has a button in scene and you can drag it. Some main points:
- scene.RootWidget can't receive touch event, so you need add those button into a panel and handle touch event of panel.
- You have to set panel's property HookChildTouchEvent = true. That way, your panel can receive touch event of button. Unfortunately, this property is protected and default is false, so you need a CustomPanel extends from Panel and set this property in constructor.
