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win32: Use an invisible cursor when cursor-visible is FALSE

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The win32 backend now handles the WM_SETCURSOR message and sets a
fully transparent cursor if the cursor-visible property has been
cleared on the stage. The icon is stored in the library via a resource
file. The instance handle for the DLL is needed to load the resource
so there is now a DllMain function to grab the handle.
This commit is contained in:
Neil Roberts
2010-01-15 22:56:37 +00:00
parent 4db89759a0
commit 14a28620ae
10 changed files with 112 additions and 6 deletions
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42
clutter/win32/clutter-stage-win32.c
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@ -216,17 +216,51 @@ clutter_stage_win32_set_title (ClutterStageWindow *stage_window,
SetWindowTextW (stage_win32->hwnd, stage_win32->wtitle);
}
void
_clutter_stage_win32_update_cursor (ClutterStageWin32 *stage_win32)
{
HCURSOR cursor;
if (stage_win32->is_cursor_visible)
cursor = (HCURSOR) GetClassLongPtrW (stage_win32->hwnd, GCL_HCURSOR);
else
{
ClutterBackend *backend = clutter_get_default_backend ();
/* The documentation implies that we can just use
SetCursor(NULL) to get rid of the cursor but apparently this
doesn't work very well so instead we create an invisible
cursor */
cursor = _clutter_backend_win32_get_invisible_cursor (backend);
}
SetCursor (cursor);
}
static void
clutter_stage_win32_set_cursor_visible (ClutterStageWindow *stage_window,
gboolean cursor_visible)
{
ClutterStageWin32 *stage_win32 = CLUTTER_STAGE_WIN32 (stage_window);
if (stage_win32->is_cursor_visible != cursor_visible &&
stage_win32->tracking_mouse)
ShowCursor (cursor_visible);
if (stage_win32->is_cursor_visible != cursor_visible)
{
POINT cursor_pos;
RECT client_rect;
stage_win32->is_cursor_visible = cursor_visible;
stage_win32->is_cursor_visible = cursor_visible;
/* If the cursor is already over the client area of the window
then we need to update it immediately */
GetCursorPos (&cursor_pos);
if (WindowFromPoint (cursor_pos) == stage_win32->hwnd &&
ScreenToClient (stage_win32->hwnd, &cursor_pos) &&
GetClientRect (stage_win32->hwnd, &client_rect) &&
cursor_pos.x >= client_rect.left &&
cursor_pos.y >= client_rect.top &&
cursor_pos.x < client_rect.right &&
cursor_pos.y < client_rect.bottom)
_clutter_stage_win32_update_cursor (stage_win32);
}
}
static LONG