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win32: Experimental implementation of device support

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Mostly lifted from the core pointer and keyboard X11 backend support.

The win32 backend registers two devices (a core pointer and a core
keyboard) and assigns them to the event structure when doing the
translation from native events to Clutter events.

Thanks to: Samuel Degrande <Samuel.Degrande@lifl.fr> for testing this
patch.
This commit is contained in:
Emmanuele Bassi 2010-01-15 11:47:05 +00:00
parent 850dd5a38f
commit 74dbcede25
3 changed files with 61 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
clutter/win32/clutter-backend-win32.c
View File

@ -31,6 +31,7 @@
#include "../clutter-event.h"
#include "../clutter-main.h"
#include "../clutter-input-device.h"
#include "../clutter-debug.h"
#include "../clutter-private.h"
#include "../clutter-version.h"
@ -64,8 +65,30 @@ clutter_backend_win32_pre_parse (ClutterBackend *backend,
static void
clutter_backend_win32_init_events (ClutterBackend *backend)
{
ClutterBackendWin32 *backend_win32 = CLUTTER_BACKEND_WIN32 (backend);
ClutterDeviceManager *manager;
ClutterInputDevice *device;
CLUTTER_NOTE (EVENT, "initialising the event loop");
manager = clutter_device_manager_get_default ();
device = g_object_new (CLUTTER_TYPE_INPUT_DEVICE,
"id", 0,
"name", "Core Pointer",
"device-type", CLUTTER_POINTER_DEVICE,
NULL);
_clutter_device_manager_add_device (manager, device);
backend_win32->core_pointer = device;
device = g_object_new (CLUTTER_TYPE_INPUT_DEVICE,
"id", 1,
"name", "Core Keyboard",
"device-type", CLUTTER_KEYBOARD_DEVICE,
NULL);
_clutter_device_manager_add_device (manager, device);
backend_win32->core_keyboard = device;
_clutter_backend_win32_events_init (backend);
}

3
clutter/win32/clutter-backend-win32.h
View File

@ -51,6 +51,9 @@ struct _ClutterBackendWin32
HCURSOR invisible_cursor;
GSource *event_source;
ClutterInputDevice *core_pointer;
ClutterInputDevice *core_keyboard;
};
struct _ClutterBackendWin32Class

45
clutter/win32/clutter-event-win32.c
View File

@ -201,9 +201,13 @@ get_modifier_state (WPARAM wparam)
return ret;
}
static void
make_button_event (const MSG *msg, ClutterEvent *event,
int button, int click_count, gboolean release)
static inline void
make_button_event (const MSG *msg,
ClutterEvent *event,
int button,
int click_count,
gboolean release,
ClutterInputDevice *device)
{
event->type = release ? CLUTTER_BUTTON_RELEASE : CLUTTER_BUTTON_PRESS;
event->button.time = msg->time;
@ -212,6 +216,7 @@ make_button_event (const MSG *msg, ClutterEvent *event,
event->button.modifier_state = get_modifier_state (msg->wParam);
event->button.button = button;
event->button.click_count = click_count;
event->button.device = device;
}
/**
@ -429,39 +434,39 @@ message_translate (ClutterBackend *backend,
break;
case WM_LBUTTONDOWN:
make_button_event (msg, event, 1, 1, FALSE);
make_button_event (msg, event, 1, 1, FALSE, backend_win32->core_pointer);
break;
case WM_MBUTTONDOWN:
make_button_event (msg, event, 2, 1, FALSE);
make_button_event (msg, event, 2, 1, FALSE, backend_win32->core_pointer);
break;
case WM_RBUTTONDOWN:
make_button_event (msg, event, 3, 1, FALSE);
make_button_event (msg, event, 3, 1, FALSE, backend_win32->core_pointer);
break;
case WM_LBUTTONUP:
make_button_event (msg, event, 1, 1, TRUE);
make_button_event (msg, event, 1, 1, TRUE, backend_win32->core_pointer);
break;
case WM_MBUTTONUP:
make_button_event (msg, event, 2, 1, TRUE);
make_button_event (msg, event, 2, 1, TRUE, backend_win32->core_pointer);
break;
case WM_RBUTTONUP:
make_button_event (msg, event, 3, 1, TRUE);
make_button_event (msg, event, 3, 1, TRUE, backend_win32->core_pointer);
break;
case WM_LBUTTONDBLCLK:
make_button_event (msg, event, 1, 2, FALSE);
make_button_event (msg, event, 1, 2, FALSE, backend_win32->core_pointer);
break;
case WM_MBUTTONDBLCLK:
make_button_event (msg, event, 2, 2, FALSE);
make_button_event (msg, event, 2, 2, FALSE, backend_win32->core_pointer);
break;
case WM_RBUTTONDBLCLK:
make_button_event (msg, event, 3, 2, FALSE);
make_button_event (msg, event, 3, 2, FALSE, backend_win32->core_pointer);
break;
case WM_MOUSEWHEEL:
@ -469,8 +474,8 @@ message_translate (ClutterBackend *backend,
event->type = CLUTTER_SCROLL;
event->scroll.time = msg->time;
event->scroll.modifier_state
= get_modifier_state (LOWORD (msg->wParam));
event->scroll.modifier_state = get_modifier_state (LOWORD (msg->wParam));
event->scroll.device = backend_win32->core_pointer;
/* conversion to window coordinates is required */
{
@ -500,7 +505,9 @@ message_translate (ClutterBackend *backend,
event->motion.x = GET_X_LPARAM (msg->lParam);
event->motion.y = GET_Y_LPARAM (msg->lParam);
event->motion.modifier_state = get_modifier_state (msg->wParam);
/* We need to start tracking when the mouse leaves the stage if
event->motion.device = backend_win32->core_pointer;
/* We need to start tracking when the mouse enters the stage if
we're not already */
if (!stage_win32->tracking_mouse)
{
@ -511,6 +518,9 @@ message_translate (ClutterBackend *backend,
tmevent.hwndTrack = stage_win32->hwnd;
TrackMouseEvent (&tmevent);
/* we entered the stage */
_clutter_input_device_set_stage (event->motion.device, stage);
stage_win32->tracking_mouse = TRUE;
}
break;
@ -520,6 +530,10 @@ message_translate (ClutterBackend *backend,
event->crossing.time = msg->time;
event->crossing.x = msg->pt.x;
event->crossing.y = msg->pt.y;
event->crossing.device = backend_win32->core_pointer;
/* we left the stage */
_clutter_input_device_set_stage (event->crossing.device, NULL);
/* When we get a leave message the mouse tracking is
automatically cancelled so we'll need to start it again when
@ -604,6 +618,7 @@ message_translate (ClutterBackend *backend,
event->key.time = msg->time;
event->key.modifier_state = get_key_modifier_state (key_states);
event->key.hardware_keycode = scan_code;
event->key.device = backend_win32->core_keyboard;
}
break;