preliminary mouse support

photon/mouse.py

@@ -0,0 +1,46 @@
+import ctypes
+from .internal import _SDL, errcheck
+from .enum import CEnum
+
+def get_mouse_state():
+    x = ctypes.c_int()
+    y = ctypes.c_int()
+    buttons = _SDL.SDL_GetMouseState(ctypes.byref(x), ctypes.byref(y))
+    return x.value, y.value, buttons
+
+def get_relative_mouse_state():
+    x = ctypes.c_int()
+    y = ctypes.c_int()
+    buttons = _SDL.SDL_GetRelativeMouseState(ctypes.byref(x), ctypes.byref(y))
+    return x.value, y.value, buttons
+
+def get_relative_mouse_mode():
+    return _SDL.SDL_GetRelativeMouseMode() == 1
+
+def set_relative_mouse_mode(enabled):
+    errcheck(_SDL.SDL_SetRelativeMouseMode(enabled))
+
+def set_cursor_visibility(visible):
+    errcheck(_SDL.SDL_ShowCursor(visible))
+
+def is_cursor_visible():
+    return errcheck(_SDL.SDL_ShowCursor(-1)) == 1
+
+def warp_mouse_in_window(x, y, window=0):
+    if window:
+        window = window._handle
+    _SDL.SDL_WarpMouseInWindow(window, x, y)
+
+class Button(CEnum):
+    LEFT = 1
+    MIDDLE = 2
+    RIGHT = 3
+    X1 = 4
+    X2 = 5
+
+    # masks for comparison against get_mouse_state return values
+    LMASK = 1
+    MMASK = 2
+    RMASK = 4
+    X1MASK = 8
+    X2MASK = 16

photon/tests/test_mouse.py

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+from .. import init, InitFlags
+from ..internal import SDLError
+from ..mouse import (get_relative_mouse_mode, set_relative_mouse_mode,
+                     set_cursor_visibility, is_cursor_visible)
+from nose.tools import with_setup
+
+def init_everything():
+    init(InitFlags.EVERYTHING)
+
+@with_setup(init_everything)
+def test_relative_mouse_mode():
+    try:
+        set_relative_mouse_mode(True)
+        assert get_relative_mouse_mode() == True
+        set_relative_mouse_mode(False)
+        assert get_relative_mouse_mode() == False
+    except SDLError:
+        pass  # sometimes this method isn't supported
+
+@with_setup(init_everything)
+def test_cursor_visiblity():
+    assert is_cursor_visible() == True
+    set_cursor_visibility(False)
+    assert is_cursor_visible() == False
+    set_cursor_visibility(True)
+    assert is_cursor_visible() == True
+