public IGUIElement GetElement(string name)
{
IGUIElement element = null;
if (!string.IsNullOrEmpty(name))
{
element = this.guiElements.Find(e => { return(string.Compare(e.Name, name, StringComparison.CurrentCulture) == 0); });
}
return(element);
}
public bool AddGUIElement(IGUIElement element)
{
bool success = false;
if (element != null && !this.guiElements.Contains(element))
{
this.guiElements.Add(element);
success = true;
}
return(success);
}
public GUIController()
{
Root = new GUIElement();
time = new Time();
}
/*The Event Receiver is not only capable of getting keyboard and mouse input events,
* but also events of the graphical user interface (gui). There are events for almost
* everything: Button click, Listbox selection change, events that say that a element
* was hovered and so on. To be able to react to some of these events, we create an
* event receiver. We only react to gui events, and if it's such an event, we get the
* id of the caller (the gui element which caused the event) and get the pointer to the
* gui environment.*/
public bool OnEvent(Event p_e)
{
if (p_e.Type == EventType.GUIEvent)
{
int id = p_e.GUIEventCaller.ID;
IGUIEnvironment env = device.GUIEnvironment;
switch (p_e.GUIEventType)
{
case (GUIEvent.SCROLL_BAR_CHANGED):
if (id == 104)
{
// I think this is still not implemented
//int pos=p_e.GUIEventCaller.Position;
}
break;
/*If a button was clicked, it could be one of 'our' three buttons.
* If it is the first, we shut down the engine. If it is the second,
* we create a little window with some text on it. We also add a string
* to the list box to log what happened. And if it is the third button,
* we create a file open dialog, and add also this as string to the list
* box. That's all for the event receiver.*/
case (GUIEvent.BUTTON_CLICKED):
if (id == 101)
{
device.CloseDevice();
return(true);
}
if (id == 102)
{
listbox.AddItem("Window Created");
cnt += 30;
if (cnt > 200)
{
cnt = 0;
}
IGUIElement window = env.AddWindow(
new Rect(100 + cnt, 100 + cnt, 300 + cnt, 200 + cnt),
false, //modal?
"Test Window",
null, //parent
0); // id
env.AddStaticText("Please close me",
new Rect(35, 35, 140, 50),
true, //border
false, //wordwrap
window, //parent
0); //id
return(true);
}
if (id == 103)
{
listbox.AddItem("File open");
env.AddFileOpenDialog("Please choose a file", false, null, 0);
return(true);
}
break;
}
}
return(false);
}
public void run()
{
// ask user for driver
DriverType driverType;
// Ask user to select driver:
StringBuilder sb = new StringBuilder();
sb.Append("Please select the driver you want for this example:\n");
sb.Append("\n(a) Direct3D 9.0c\n(b) Direct3D 8.1\n(c) OpenGL 1.5");
sb.Append("\n(d) Software Renderer\n(e) Apfelbaum Software Renderer");
sb.Append("\n(f) Null Device\n(otherKey) exit\n\n");
// Get the user's input:
TextReader tIn = Console.In;
TextWriter tOut = Console.Out;
tOut.Write(sb.ToString());
string input = tIn.ReadLine();
// Select device based on user's input:
switch (input)
{
case "a":
driverType = DriverType.DIRECT3D9;
break;
case "b":
driverType = DriverType.DIRECT3D8;
break;
case "c":
driverType = DriverType.OPENGL;
break;
case "d":
driverType = DriverType.SOFTWARE;
break;
case "e":
driverType = DriverType.SOFTWARE2;
break;
case "f":
driverType = DriverType.NULL_DRIVER;
break;
default:
return;
}
// Create device and exit if creation fails:
device = new IrrlichtDevice(driverType, new Dimension2D(1024, 768), 32, false, true, true);
if (device == null)
{
tOut.Write("Device creation failed.");
return;
}
/* set this as event receiver*/
device.EventReceiver = this;
/*
* Get a pointer to the video driver and the SceneManager so that
* we do not always have to write device.VideoDriver and
* device.SceneManager and device.GUIEnvironment.
*/
ISceneManager smgr = device.SceneManager;
IVideoDriver driver = device.VideoDriver;
IGUIEnvironment env = device.GUIEnvironment;
/*We add three buttons. The first one closes the engine. The second creates
* a window and the third opens a file open dialog. The third parameter is
* the id of the button, with which we can easily identify the button in the
* event receiver.*/
env.AddButton(new Rect(10, 210, 100, 240), null, 101, "Quit");
env.AddButton(new Rect(10, 250, 100, 290), null, 102, "New Window");
env.AddButton(new Rect(10, 300, 100, 340), null, 103, "File Open");
/*Now, we add a static text and a scrollbar, which modifies the transparency
* of all gui elements. We set the maximum value of the scrollbar to 255,
* because that's the maximal value for a color value. Then we create an other
* static text and a list box.*/
env.AddStaticText("Transparent Control:", new Rect(150, 20, 350, 40), true, false, null, 0);
IGUIElement scrollbar = env.AddScrollBar(true, new Rect(150, 45, 350, 60), null, 104);
//nopt implemented yet
//scrollbar.Max=255;
env.AddStaticText("Logging Listbox:", new Rect(50, 80, 250, 100), true, false, null, 0);
listbox = env.AddListBox(new Rect(50, 110, 250, 180), null, 0, true);
/*To make the font a little bit nicer, we load an external font and set it as
* new font in the skin. An at last, we create a nice Irrlicht Engine logo in the
* top left corner. */
IGUISkin skin = env.Skin;
IGUIFont font = env.GetFont(path + "fonthaettenschweiler.bmp");
if (font != null)
{
skin.Font = font;
}
IGUIElement img = env.AddImage(driver.GetTexture(path + "irrlichtlogoalpha.tga"),
new Position2D(10, 10),
false, //UseAlphaChannel
null, //Parent
0, //ID
""); //Text
/*
* We have done everything, so lets draw it.
*/
while (device.Run())
{
if (device.WindowActive)
{
device.VideoDriver.BeginScene(true, true, new Color(0, 122, 65, 171));
device.SceneManager.DrawAll();
device.GUIEnvironment.DrawAll();
device.VideoDriver.EndScene();
}
}
/*
* In the end, delete the Irrlicht device.
*/
// Instead of device->drop, we'll use:
GC.Collect();
}
public void Remove(IGUIElement gui_element)
{
gui_elements.Remove(gui_element);
}
public void Add(IGUIElement gui_element)
{
gui_elements.Add(gui_element);
gui_element.Bind(ResourceManager, font_mesh_builder);
}
