/// <summary>
/// Closes the window.
/// </summary>
public virtual void Close()
{
BoolEventArgs e = new BoolEventArgs();
this.OnClosing(e);
if (e.Value)
{
this.Dispose();
SDL_DestroyWindow(this.SDL_Window);
this.OnClosed(new BaseEventArgs());
}
}
public virtual void Closing(BoolEventArgs e)
{
}
public static void EvaluateEvent(SDL_Event e)
{
if (e.window.windowID == 0)
{
return;
}
IntPtr sdlwindow = SDL_GetWindowFromID(e.window.windowID);
Window w = Windows.Find(win => win != null && win.SDL_Window == sdlwindow);
if (w == null)
{
return;
}
int idx = Windows.IndexOf(w);
// After closing a window, there are still a few more events like losing focus;
// We can skip these as the window was already destroyed.
if (w == null)
{
return;
}
if (OldMouseX == -1)
{
OldMouseX = e.motion.x;
}
if (OldMouseY == -1)
{
OldMouseY = e.motion.y;
}
if (e.type == SDL_EventType.SDL_WINDOWEVENT)
{
switch (e.window.windowevent)
{
case SDL_WindowEventID.SDL_WINDOWEVENT_CLOSE:
BoolEventArgs ClosingArgs = new BoolEventArgs();
w.OnClosing(ClosingArgs);
if (!ClosingArgs.Value)
{
SDL_DestroyWindow(w.SDL_Window);
w.OnClosed(new BaseEventArgs());
w.Dispose();
Windows[idx] = null;
}
break;
case SDL_WindowEventID.SDL_WINDOWEVENT_MOVED:
break;
case SDL_WindowEventID.SDL_WINDOWEVENT_RESIZED:
int width1;
int height1;
SDL_GetWindowSize(w.SDL_Window, out width1, out height1);
w.OnSizeChanged(new BaseEventArgs());
break;
case SDL_WindowEventID.SDL_WINDOWEVENT_SIZE_CHANGED:
int width2;
int height2;
SDL_GetWindowSize(w.SDL_Window, out width2, out height2);
w.OnSizeChanged(new BaseEventArgs());
break;
case SDL_WindowEventID.SDL_WINDOWEVENT_FOCUS_GAINED:
w.Focus = true;
w.OnFocusGained(new BaseEventArgs());
break;
case SDL_WindowEventID.SDL_WINDOWEVENT_FOCUS_LOST:
w.Focus = false;
w.OnFocusLost(new BaseEventArgs());
break;
}
}
if (Windows[idx] == null)
{
return; // Just disposed this window
}
if (w.Focus)
{
switch (e.type)
{
case SDL_EventType.SDL_MOUSEMOTION:
if (e.motion.x != OldMouseX || e.motion.y != OldMouseY)
{
LeftDown = (e.button.button & 1) == 1;
MiddleDown = (e.button.button & 2) == 2;
RightDown = (e.button.button & 4) == 4;
w.OnMouseMoving(new MouseEventArgs(e.motion.x, e.motion.y,
oldleftdown, LeftDown,
oldrightdown, RightDown,
oldmiddledown, MiddleDown));
}
OldMouseX = e.motion.x;
OldMouseY = e.motion.y;
break;
case SDL_EventType.SDL_MOUSEBUTTONDOWN:
if (e.button.button == 1)
{
LeftDown = true;
}
if (e.button.button == 2)
{
MiddleDown = true;
}
if (e.button.button == 3)
{
RightDown = true;
}
w.OnMouseDown(new MouseEventArgs(e.motion.x, e.motion.y,
oldleftdown, LeftDown,
oldrightdown, RightDown,
oldmiddledown, MiddleDown));
break;
case SDL_EventType.SDL_MOUSEBUTTONUP:
if (e.button.button == 1)
{
LeftDown = false;
}
if (e.button.button == 2)
{
MiddleDown = false;
}
if (e.button.button == 3)
{
RightDown = false;
}
w.OnMouseUp(new MouseEventArgs(e.motion.x, e.motion.y,
oldleftdown, LeftDown,
oldrightdown, RightDown,
oldmiddledown, MiddleDown));
break;
case SDL_EventType.SDL_MOUSEWHEEL:
w.OnMouseWheel(new MouseEventArgs(OldMouseX, OldMouseY,
oldleftdown, LeftDown,
oldrightdown, RightDown,
oldmiddledown, MiddleDown,
e.wheel.x, e.wheel.y));
break;
case SDL_EventType.SDL_KEYDOWN:
SDL_Keycode sym1 = e.key.keysym.sym;
Input.Register(sym1, true);
string txt = "";
bool backspace = false;
bool delete = false;
if (sym1 == SDL_Keycode.SDLK_RETURN)
{
txt = "\n";
}
if (sym1 == SDL_Keycode.SDLK_BACKSPACE)
{
backspace = true;
}
if (sym1 == SDL_Keycode.SDLK_DELETE)
{
delete = true;
}
if (txt.Length > 0 || backspace || delete)
{
w.OnTextInput(new TextEventArgs(txt, backspace, delete));
}
break;
case SDL_EventType.SDL_KEYUP:
SDL_Keycode sym2 = e.key.keysym.sym;
Input.Register(sym2, false);
break;
case SDL_EventType.SDL_TEXTINPUT:
byte[] bytes = new byte[32];
unsafe
{
byte *ptr = e.text.text;
byte *data = ptr;
int i = 0;
while (*data != 0)
{
bytes[i] = *data;
data++;
i++;
}
}
string text = "";
foreach (char c in Encoding.UTF8.GetChars(bytes))
{
text += c;
}
w.OnTextInput(new TextEventArgs(text.TrimEnd('\x00')));
break;
}
}
}