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gtk/gdk/win32/gdkinput-winpointer.c
Luca Bacci 1a058a41c9 Do not keep HINSTANCE variables around 
Use &__ImageBase for the GTK DLL and GetModuleHandle (NULL)
for the application module. Then remove DllMain as it's not
necessary anymore.

References:

 [1] Accessing the current module's HINSTANCE from a static library:
     https://devblogs.microsoft.com/oldnewthing/20041025-00/?p=37483
2023-05-30 19:31:54 +02:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2021 the GTK team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gdk/gdk.h>
#include "gdkwin32.h"
#include "gdkprivate-win32.h"
#include "gdkdevicemanager-win32.h"
#include "gdkdevice-virtual.h"
#include "gdkdevice-winpointer.h"
#include "gdkdeviceprivate.h"
#include "gdkdevicetoolprivate.h"
#include "gdkdisplayprivate.h"
#include "gdkeventsprivate.h"
#include "gdkseatdefaultprivate.h"
#include "gdkinput-winpointer.h"
#include <windows.h>
#include <tchar.h>
#include <tpcshrd.h>
#include <hidsdi.h>
#define HID_STRING_BYTES_LIMIT 200
#define VID_PID_CHARS 4
typedef BOOL
(WINAPI *registerPointerDeviceNotifications_t)(HWND window, BOOL notifyRange);
typedef BOOL
(WINAPI *getPointerDevices_t)(UINT32 *deviceCount, POINTER_DEVICE_INFO *pointerDevices);
typedef BOOL
(WINAPI *getPointerDeviceCursors_t)(HANDLE device, UINT32 *cursorCount, POINTER_DEVICE_CURSOR_INFO *deviceCursors);
typedef BOOL
(WINAPI *getPointerDeviceRects_t)(HANDLE device, RECT *pointerDeviceRect, RECT *displayRect);
typedef BOOL
(WINAPI *getPointerType_t)(UINT32 pointerId, POINTER_INPUT_TYPE *pointerType);
typedef BOOL
(WINAPI *getPointerCursorId_t)(UINT32 pointerId, UINT32 *cursorId);
typedef BOOL
(WINAPI *getPointerPenInfo_t)(UINT32 pointerId, POINTER_PEN_INFO *penInfo);
typedef BOOL
(WINAPI *getPointerTouchInfo_t)(UINT32 pointerId, POINTER_TOUCH_INFO *touchInfo);
typedef BOOL
(WINAPI *getPointerPenInfoHistory_t)(UINT32 pointerId, UINT32 *entriesCount, POINTER_PEN_INFO *penInfo);
typedef BOOL
(WINAPI *getPointerTouchInfoHistory_t)(UINT32 pointerId, UINT32 *entriesCount, POINTER_TOUCH_INFO *touchInfo);
typedef BOOL
(WINAPI *setGestureConfig_t)(HWND hwnd, DWORD dwReserved, UINT cIDs, PGESTURECONFIG pGestureConfig, UINT cbSize);
typedef BOOL
(WINAPI *setWindowFeedbackSetting_t)(HWND hwnd, FEEDBACK_TYPE feedback, DWORD dwFlags, UINT32 size, const VOID *configuration);
static registerPointerDeviceNotifications_t registerPointerDeviceNotifications;
static getPointerDevices_t getPointerDevices;
static getPointerDeviceCursors_t getPointerDeviceCursors;
static getPointerDeviceRects_t getPointerDeviceRects;
static getPointerType_t getPointerType;
static getPointerCursorId_t getPointerCursorId;
static getPointerPenInfo_t getPointerPenInfo;
static getPointerTouchInfo_t getPointerTouchInfo;
static getPointerPenInfoHistory_t getPointerPenInfoHistory;
static getPointerTouchInfoHistory_t getPointerTouchInfoHistory;
static setGestureConfig_t setGestureConfig;
static setWindowFeedbackSetting_t setWindowFeedbackSetting;
static ATOM notifications_window_class;
static HWND notifications_window_handle;
static GPtrArray *ignored_interactions;
static inline void
winpointer_ignore_interaction (UINT32 pointer_id)
{
g_ptr_array_add (ignored_interactions, GUINT_TO_POINTER (pointer_id));
}
static inline void
winpointer_remove_ignored_interaction (UINT32 pointer_id)
{
g_ptr_array_remove_fast (ignored_interactions, GUINT_TO_POINTER (pointer_id));
}
static inline gboolean
winpointer_should_ignore_interaction (UINT32 pointer_id)
{
return g_ptr_array_find (ignored_interactions, GUINT_TO_POINTER (pointer_id), NULL);
}
static inline guint32
winpointer_get_time (MSG *msg,
POINTER_INFO *info)
{
return info->dwTime != 0 ? info->dwTime : msg->time;
}
static inline gboolean
winpointer_is_eraser (POINTER_PEN_INFO *pen_info)
{
return (pen_info->penFlags & (PEN_FLAG_INVERTED | PEN_FLAG_ERASER)) != 0;
}
static inline gboolean
winpointer_should_filter_message (MSG *msg,
POINTER_INPUT_TYPE type)
{
switch (type)
{
case PT_TOUCH:
return msg->message == WM_POINTERENTER ||
msg->message == WM_POINTERLEAVE;
break;
}
return FALSE;
}
static inline double*
copy_axes (double *axes)
{
return g_memdup2 (axes, sizeof (double) * GDK_AXIS_LAST);
}
static GdkDeviceWinpointer*
winpointer_find_device_with_source (HANDLE device_handle,
UINT32 cursor_id,
GdkInputSource input_source)
{
for (GList *l = _gdk_device_manager->winpointer_devices; l != NULL; l = l->next)
{
GdkDeviceWinpointer *device = (GdkDeviceWinpointer*) l->data;
if (device->device_handle == device_handle &&
device->start_cursor_id <= cursor_id &&
device->end_cursor_id >= cursor_id &&
gdk_device_get_source ((GdkDevice*) device) == input_source)
{
return device;
}
}
return NULL;
}
static gboolean
winpointer_get_event_type (MSG *msg,
POINTER_INFO *info,
GdkEventType *evt_type)
{
switch (info->pointerType)
{
case PT_PEN:
switch (msg->message)
{
case WM_POINTERENTER:
g_return_val_if_fail (IS_POINTER_NEW_WPARAM (msg->wParam), FALSE);
*evt_type = GDK_PROXIMITY_IN;
return TRUE;
case WM_POINTERLEAVE:
g_return_val_if_fail (!IS_POINTER_INRANGE_WPARAM (msg->wParam), FALSE);
*evt_type = GDK_PROXIMITY_OUT;
return TRUE;
case WM_POINTERDOWN:
*evt_type = GDK_BUTTON_PRESS;
return TRUE;
case WM_POINTERUP:
*evt_type = GDK_BUTTON_RELEASE;
return TRUE;
case WM_POINTERUPDATE:
*evt_type = GDK_MOTION_NOTIFY;
return TRUE;
}
break;
case PT_TOUCH:
if (IS_POINTER_CANCELED_WPARAM (msg->wParam) ||
!HAS_POINTER_CONFIDENCE_WPARAM (msg->wParam))
{
winpointer_ignore_interaction (GET_POINTERID_WPARAM (msg->wParam));
if (((info->pointerFlags & POINTER_FLAG_INCONTACT) &&
(info->pointerFlags & POINTER_FLAG_UPDATE)) ||
(info->pointerFlags & POINTER_FLAG_UP))
{
*evt_type = GDK_TOUCH_CANCEL;
return TRUE;
}
else
return FALSE;
}
g_return_val_if_fail (msg->message != WM_POINTERENTER &&
msg->message != WM_POINTERLEAVE, FALSE);
switch (msg->message)
{
case WM_POINTERDOWN:
*evt_type = GDK_TOUCH_BEGIN;
return TRUE;
case WM_POINTERUP:
*evt_type = GDK_TOUCH_END;
return TRUE;
case WM_POINTERUPDATE:
if (!IS_POINTER_INCONTACT_WPARAM (msg->wParam))
return FALSE;
*evt_type = GDK_TOUCH_UPDATE;
return TRUE;
}
break;
}
g_warn_if_reached ();
return FALSE;
}
static void
winpointer_make_event (GdkDeviceWinpointer *device,
GdkDeviceTool *tool,
GdkSurface *surface,
MSG *msg,
POINTER_INFO *info)
{
guint32 time = 0;
double screen_x = 0.0;
double screen_y = 0.0;
double x = 0.0;
double y = 0.0;
unsigned int state = 0;
unsigned int button = 0;
double axes[GDK_AXIS_LAST];
GdkEventSequence *sequence = NULL;
gboolean emulating_pointer = FALSE;
POINT client_area_coordinates;
GdkWin32Surface *impl = NULL;
GdkEventType evt_type;
GdkEvent *evt = NULL;
GdkDevice *core_device = NULL;
core_device = _gdk_device_manager->core_pointer;
if (!winpointer_get_event_type (msg, info, &evt_type))
return;
time = winpointer_get_time (msg, info);
screen_x = device->origin_x + info->ptHimetricLocation.x * device->scale_x;
screen_y = device->origin_y + info->ptHimetricLocation.y * device->scale_y;
client_area_coordinates.x = 0;
client_area_coordinates.y = 0;
ClientToScreen (GDK_SURFACE_HWND (surface), &client_area_coordinates);
x = screen_x - client_area_coordinates.x;
y = screen_y - client_area_coordinates.y;
impl = GDK_WIN32_SURFACE (surface);
x /= impl->surface_scale;
y /= impl->surface_scale;
state = 0;
if (info->dwKeyStates & POINTER_MOD_CTRL)
state |= GDK_CONTROL_MASK;
if (info->dwKeyStates & POINTER_MOD_SHIFT)
state |= GDK_SHIFT_MASK;
if (GetKeyState (VK_MENU) < 0)
state |= GDK_ALT_MASK;
if (GetKeyState (VK_CAPITAL) & 0x1)
state |= GDK_LOCK_MASK;
device->last_button_mask = 0;
if (((info->pointerFlags & POINTER_FLAG_FIRSTBUTTON) &&
(info->ButtonChangeType != POINTER_CHANGE_FIRSTBUTTON_DOWN))
|| info->ButtonChangeType == POINTER_CHANGE_FIRSTBUTTON_UP)
device->last_button_mask |= GDK_BUTTON1_MASK;
if (((info->pointerFlags & POINTER_FLAG_SECONDBUTTON) &&
(info->ButtonChangeType != POINTER_CHANGE_SECONDBUTTON_DOWN))
|| info->ButtonChangeType == POINTER_CHANGE_SECONDBUTTON_UP)
device->last_button_mask |= GDK_BUTTON3_MASK;
state |= device->last_button_mask;
memset (axes, 0, sizeof (axes));
switch (info->pointerType)
{
case PT_PEN:
{
POINTER_PEN_INFO *pen_info = (POINTER_PEN_INFO*) info;
axes[GDK_AXIS_PRESSURE] = (pen_info->penMask & PEN_MASK_PRESSURE) ?
pen_info->pressure / 1024.0 :
(pen_info->pointerInfo.pointerFlags & POINTER_FLAG_INCONTACT) ?
1.0 : 0.0;
axes[GDK_AXIS_XTILT] = (pen_info->penMask & PEN_MASK_TILT_X) ?
pen_info->tiltX / 90.0 : 0.0;
axes[GDK_AXIS_YTILT] = (pen_info->penMask & PEN_MASK_TILT_Y) ?
pen_info->tiltY / 90.0 : 0.0;
axes[GDK_AXIS_ROTATION] = (pen_info->penMask & PEN_MASK_ROTATION) ?
pen_info->rotation / 360.0 : 0.0;
}
break;
case PT_TOUCH:
{
POINTER_TOUCH_INFO *touch_info = (POINTER_TOUCH_INFO*) info;
axes[GDK_AXIS_PRESSURE] = (touch_info->touchMask & TOUCH_MASK_PRESSURE) ?
touch_info->pressure / 1024.0 :
(touch_info->pointerInfo.pointerFlags & POINTER_FLAG_INCONTACT) ?
1.0 : 0.0;
}
break;
}
sequence = (GdkEventSequence*) GUINT_TO_POINTER (info->pointerId);
emulating_pointer = (info->pointerFlags & POINTER_FLAG_PRIMARY) != 0;
button = (info->pointerFlags & POINTER_FLAG_FIRSTBUTTON) ||
(info->ButtonChangeType == POINTER_CHANGE_FIRSTBUTTON_UP) ? 1 : 3;
switch (evt_type)
{
case GDK_PROXIMITY_IN:
case GDK_PROXIMITY_OUT:
evt = gdk_proximity_event_new (evt_type,
surface,
core_device,
tool,
time);
break;
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
evt = gdk_button_event_new (evt_type,
surface,
core_device,
tool,
time,
state,
button,
x,
y,
copy_axes (axes));
break;
case GDK_MOTION_NOTIFY:
evt = gdk_motion_event_new (surface,
core_device,
tool,
time,
state,
x,
y,
copy_axes (axes));
break;
case GDK_TOUCH_BEGIN:
case GDK_TOUCH_UPDATE:
case GDK_TOUCH_CANCEL:
case GDK_TOUCH_END:
evt = gdk_touch_event_new (evt_type,
sequence,
surface,
core_device,
time,
state,
x,
y,
copy_axes (axes),
emulating_pointer);
break;
default:
g_warn_if_reached ();
break;
}
if (evt_type == GDK_PROXIMITY_OUT)
gdk_device_update_tool ((GdkDevice*) device, NULL);
if (G_LIKELY (evt))
{
_gdk_device_virtual_set_active (core_device, (GdkDevice*) device);
_gdk_win32_append_event (evt);
}
}
void
gdk_winpointer_input_events (GdkSurface *surface,
crossing_cb_t crossing_cb,
MSG *msg)
{
UINT32 pointer_id = GET_POINTERID_WPARAM (msg->wParam);
POINTER_INPUT_TYPE type = PT_POINTER;
UINT32 cursor_id = 0;
if (!getPointerType (pointer_id, &type))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerType");
return;
}
if (!getPointerCursorId (pointer_id, &cursor_id))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerCursorId");
return;
}
if (winpointer_should_filter_message (msg, type))
return;
if (winpointer_should_ignore_interaction (pointer_id))
return;
switch (type)
{
case PT_PEN:
{
POINTER_PEN_INFO *infos = NULL;
UINT32 history_count = 0;
GdkDeviceWinpointer *device = NULL;
GdkDeviceTool *tool = NULL;
UINT32 h = 0;
do
{
infos = g_new0 (POINTER_PEN_INFO, history_count);
if (!getPointerPenInfoHistory (pointer_id, &history_count, infos))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerPenInfoHistory");
g_free (infos);
return;
}
}
while (!infos && history_count > 0);
if (G_UNLIKELY (history_count == 0))
return;
device = winpointer_find_device_with_source (infos->pointerInfo.sourceDevice, cursor_id, GDK_SOURCE_PEN);
if (G_UNLIKELY (!device))
{
g_free (infos);
return;
}
if (!winpointer_is_eraser (infos))
tool = device->tool_pen;
else
tool = device->tool_eraser;
gdk_device_update_tool ((GdkDevice*) device, tool);
h = history_count - 1;
if (crossing_cb)
{
POINT screen_pt = infos[h].pointerInfo.ptPixelLocation;
guint32 event_time = winpointer_get_time (msg, &infos[h].pointerInfo);
crossing_cb(GDK_DEVICE (device), surface, &screen_pt, event_time);
}
do
winpointer_make_event (device, tool, surface, msg, (POINTER_INFO*) &infos[h]);
while (h-- > 0);
g_free (infos);
}
break;
case PT_TOUCH:
{
POINTER_TOUCH_INFO *infos = NULL;
UINT32 history_count = 0;
GdkDeviceWinpointer *device = NULL;
UINT32 h = 0;
do
{
infos = g_new0 (POINTER_TOUCH_INFO, history_count);
if (!getPointerTouchInfoHistory (pointer_id, &history_count, infos))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerTouchInfoHistory");
g_free (infos);
return;
}
}
while (!infos && history_count > 0);
if (G_UNLIKELY (history_count == 0))
return;
device = winpointer_find_device_with_source (infos->pointerInfo.sourceDevice, cursor_id, GDK_SOURCE_TOUCHSCREEN);
if (G_UNLIKELY (!device))
{
g_free (infos);
return;
}
h = history_count - 1;
if (crossing_cb)
{
POINT screen_pt = infos[h].pointerInfo.ptPixelLocation;
guint32 event_time = winpointer_get_time (msg, &infos[h].pointerInfo);
crossing_cb(GDK_DEVICE (device), surface, &screen_pt, event_time);
}
do
winpointer_make_event (device, NULL, surface, msg, (POINTER_INFO*) &infos[h]);
while (h-- > 0);
g_free (infos);
}
break;
}
}
gboolean
gdk_winpointer_get_message_info (MSG *msg,
GdkDevice **device,
guint32 *time)
{
UINT32 pointer_id = GET_POINTERID_WPARAM (msg->wParam);
POINTER_INPUT_TYPE type = PT_POINTER;
UINT32 cursor_id = 0;
if (!getPointerType (pointer_id, &type))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerType");
return FALSE;
}
if (!getPointerCursorId (pointer_id, &cursor_id))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerCursorId");
return FALSE;
}
switch (type)
{
case PT_PEN:
{
POINTER_PEN_INFO pen_info;
if (!getPointerPenInfo (pointer_id, &pen_info))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerPenInfo");
return FALSE;
}
*device = (GdkDevice*) winpointer_find_device_with_source (pen_info.pointerInfo.sourceDevice, cursor_id, GDK_SOURCE_PEN);
*time = winpointer_get_time (msg, &pen_info.pointerInfo);
}
break;
case PT_TOUCH:
{
POINTER_TOUCH_INFO touch_info;
if (!getPointerTouchInfo (pointer_id, &touch_info))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerTouchInfo");
return FALSE;
}
*device = GDK_DEVICE (winpointer_find_device_with_source (touch_info.pointerInfo.sourceDevice,
cursor_id,
GDK_SOURCE_TOUCHSCREEN));
*time = winpointer_get_time (msg, &touch_info.pointerInfo);
}
break;
default:
g_warn_if_reached ();
return FALSE;
break;
}
return *device ? TRUE : FALSE;
}
gboolean
gdk_winpointer_should_forward_message (MSG *msg)
{
UINT32 pointer_id = GET_POINTERID_WPARAM (msg->wParam);
POINTER_INPUT_TYPE type = PT_POINTER;
if (!getPointerType (pointer_id, &type))
{
WIN32_API_FAILED_LOG_ONCE ("GetPointerType");
return TRUE;
}
return !(type == PT_PEN || type == PT_TOUCH);
}
void
gdk_winpointer_interaction_ended (MSG *msg)
{
winpointer_remove_ignored_interaction (GET_POINTERID_WPARAM (msg->wParam));
}
static inline double
utils_rect_width (RECT *rect)
{
return rect->right - rect->left;
}
static inline double
utils_rect_height (RECT *rect)
{
return rect->bottom - rect->top;
}
static inline gboolean
utils_rect_is_degenerate (RECT *rect)
{
return utils_rect_width (rect) == 0 || utils_rect_height (rect) == 0;
}
static gboolean
winpointer_device_update_scale_factors (GdkDeviceWinpointer *device)
{
RECT device_rect;
RECT display_rect;
if (!getPointerDeviceRects (device->device_handle, &device_rect, &display_rect))
{
WIN32_API_FAILED ("GetPointerDeviceRects");
return FALSE;
}
if (utils_rect_is_degenerate (&device_rect))
{
g_warning ("Invalid coordinates from GetPointerDeviceRects");
return FALSE;
}
device->origin_x = display_rect.left;
device->origin_y = display_rect.top;
device->scale_x = utils_rect_width (&display_rect) / utils_rect_width (&device_rect);
device->scale_y = utils_rect_height (&display_rect) / utils_rect_height (&device_rect);
return TRUE;
}
static void
winpointer_get_device_details (HANDLE device,
char *vid,
char *pid,
char **manufacturer,
char **product)
{
RID_DEVICE_INFO info;
UINT wchars_count = 0;
UINT size = 0;
memset (&info, 0, sizeof (info));
info.cbSize = sizeof (info);
size = sizeof (info);
if (GetRawInputDeviceInfoW (device, RIDI_DEVICEINFO, &info, &size) > 0 &&
info.dwType == RIM_TYPEHID &&
info.hid.dwVendorId > 0 &&
info.hid.dwProductId > 0)
{
const char *format_string = "%0" G_STRINGIFY (VID_PID_CHARS) "x";
g_snprintf (vid, VID_PID_CHARS + 1, format_string, (unsigned) info.hid.dwVendorId);
g_snprintf (pid, VID_PID_CHARS + 1, format_string, (unsigned) info.hid.dwProductId);
}
if (GetRawInputDeviceInfoW (device, RIDI_DEVICENAME, NULL, &wchars_count) == 0)
{
gunichar2 *device_path = g_new0 (gunichar2, wchars_count);
if (GetRawInputDeviceInfoW (device, RIDI_DEVICENAME, device_path, &wchars_count) > 0)
{
HANDLE device_file = CreateFileW (device_path,
0,
FILE_SHARE_READ |
FILE_SHARE_WRITE |
FILE_SHARE_DELETE,
NULL,
OPEN_EXISTING,
FILE_FLAG_SESSION_AWARE,
NULL);
if (device_file != INVALID_HANDLE_VALUE)
{
gunichar2 *buffer = g_malloc0 (HID_STRING_BYTES_LIMIT);
if (HidD_GetManufacturerString (device_file, buffer, HID_STRING_BYTES_LIMIT))
if (buffer[0])
*manufacturer = g_utf16_to_utf8 (buffer, -1, NULL, NULL, NULL);
if (HidD_GetProductString (device_file, buffer, HID_STRING_BYTES_LIMIT))
if (buffer[0])
*product = g_utf16_to_utf8 (buffer, -1, NULL, NULL, NULL);
g_free (buffer);
CloseHandle (device_file);
}
}
g_free (device_path);
}
}
static void
winpointer_create_device (POINTER_DEVICE_INFO *info,
GdkInputSource source)
{
GdkDeviceWinpointer *device = NULL;
GdkSeat *seat = NULL;
unsigned num_touches = 0;
char vid[VID_PID_CHARS + 1];
char pid[VID_PID_CHARS + 1];
char *manufacturer = NULL;
char *product = NULL;
char *base_name = NULL;
char *name = NULL;
UINT32 num_cursors = 0;
GdkAxisFlags axes_flags = 0;
seat = gdk_display_get_default_seat (_gdk_display);
memset (pid, 0, VID_PID_CHARS + 1);
memset (vid, 0, VID_PID_CHARS + 1);
if (!getPointerDeviceCursors (info->device, &num_cursors, NULL))
{
WIN32_API_FAILED ("GetPointerDeviceCursors");
return;
}
if (num_cursors == 0)
return;
winpointer_get_device_details (info->device, vid, pid, &manufacturer, &product);
/* build up the name */
if (!manufacturer && vid[0])
manufacturer = g_strdup (vid);
if (!product && pid[0])
product = g_strdup (pid);
if (manufacturer && product)
base_name = g_strconcat (manufacturer, " ", product, NULL);
if (!base_name && info->productString[0])
base_name = g_utf16_to_utf8 (info->productString, -1, NULL, NULL, NULL);
if (!base_name)
base_name = g_strdup ("Unnamed");
switch (source)
{
case GDK_SOURCE_PEN:
name = g_strconcat (base_name, " Pen", NULL);
break;
case GDK_SOURCE_TOUCHSCREEN:
num_touches = info->maxActiveContacts;
name = g_strconcat (base_name, " Finger touch", NULL);
break;
default:
name = g_strdup (base_name);
break;
}
device = g_object_new (GDK_TYPE_DEVICE_WINPOINTER,
"display", _gdk_display,
"seat", seat,
"has-cursor", TRUE,
"source", source,
"name", name,
"num-touches", num_touches,
"vendor-id", vid[0] ? vid : NULL,
"product-id", pid[0] ? pid : NULL,
NULL);
switch (source)
{
case GDK_SOURCE_PEN:
_gdk_device_add_axis (GDK_DEVICE (device), GDK_AXIS_PRESSURE, 0.0, 1.0, 1.0 / 1024.0);
axes_flags |= GDK_AXIS_FLAG_PRESSURE;
_gdk_device_add_axis (GDK_DEVICE (device), GDK_AXIS_XTILT, -1.0, 1.0, 1.0 / 90.0);
axes_flags |= GDK_AXIS_FLAG_XTILT;
_gdk_device_add_axis (GDK_DEVICE (device), GDK_AXIS_YTILT, -1.0, 1.0, 1.0 / 90.0);
axes_flags |= GDK_AXIS_FLAG_YTILT;
_gdk_device_add_axis (GDK_DEVICE (device), GDK_AXIS_ROTATION, 0.0, 1.0, 1.0 / 360.0);
axes_flags |= GDK_AXIS_FLAG_ROTATION;
break;
case GDK_SOURCE_TOUCHSCREEN:
_gdk_device_add_axis (GDK_DEVICE (device), GDK_AXIS_PRESSURE, 0.0, 1.0, 1.0 / 1024.0);
axes_flags |= GDK_AXIS_FLAG_PRESSURE;
break;
default:
g_warn_if_reached ();
break;
}
device->device_handle = info->device;
device->start_cursor_id = info->startingCursorId;
device->end_cursor_id = info->startingCursorId + num_cursors - 1;
if (!winpointer_device_update_scale_factors (device))
{
g_set_object (&device, NULL);
goto cleanup;
}
switch (source)
{
case GDK_SOURCE_PEN:
{
device->tool_pen = gdk_device_tool_new (0, 0, GDK_DEVICE_TOOL_TYPE_PEN, axes_flags);
gdk_seat_default_add_tool (GDK_SEAT_DEFAULT (seat), device->tool_pen);
device->tool_eraser = gdk_device_tool_new (0, 0, GDK_DEVICE_TOOL_TYPE_ERASER, axes_flags);
gdk_seat_default_add_tool (GDK_SEAT_DEFAULT (seat), device->tool_eraser);
}
break;
case GDK_SOURCE_TOUCHSCREEN:
break;
default:
g_warn_if_reached ();
break;
}
_gdk_device_manager->winpointer_devices = g_list_append (_gdk_device_manager->winpointer_devices, device);
_gdk_device_set_associated_device (GDK_DEVICE (device), _gdk_device_manager->core_pointer);
_gdk_device_add_physical_device (_gdk_device_manager->core_pointer, GDK_DEVICE (device));
gdk_seat_default_add_physical_device (GDK_SEAT_DEFAULT (seat), GDK_DEVICE (device));
cleanup:
g_free (name);
g_free (base_name);
g_free (product);
g_free (manufacturer);
}
static void
winpointer_create_devices (POINTER_DEVICE_INFO *info)
{
switch (info->pointerDeviceType)
{
case POINTER_DEVICE_TYPE_INTEGRATED_PEN:
case POINTER_DEVICE_TYPE_EXTERNAL_PEN:
winpointer_create_device (info, GDK_SOURCE_PEN);
break;
case POINTER_DEVICE_TYPE_TOUCH:
winpointer_create_device (info, GDK_SOURCE_TOUCHSCREEN);
break;
default:
g_warn_if_reached ();
break;
}
}
static gboolean
winpointer_find_device_in_system_list (GdkDeviceWinpointer *device,
POINTER_DEVICE_INFO *infos,
UINT32 infos_count)
{
for (UINT32 i = 0; i < infos_count; i++)
{
if (device->device_handle == infos[i].device &&
device->start_cursor_id == infos[i].startingCursorId)
{
return TRUE;
}
}
return FALSE;
}
static gboolean
winpointer_find_system_device_in_device_manager (POINTER_DEVICE_INFO *info)
{
for (GList *l = _gdk_device_manager->winpointer_devices; l != NULL; l = l->next)
{
GdkDeviceWinpointer *device = GDK_DEVICE_WINPOINTER (l->data);
if (device->device_handle == info->device &&
device->start_cursor_id == info->startingCursorId)
{
return TRUE;
}
}
return FALSE;
}
static void
winpointer_enumerate_devices (void)
{
POINTER_DEVICE_INFO *infos = NULL;
UINT32 infos_count = 0;
UINT32 i = 0;
GList *current = NULL;
do
{
infos = g_new0 (POINTER_DEVICE_INFO, infos_count);
if (!getPointerDevices (&infos_count, infos))
{
WIN32_API_FAILED ("GetPointerDevices");
g_free (infos);
return;
}
}
while (infos_count > 0 && !infos);
current = _gdk_device_manager->winpointer_devices;
while (current != NULL)
{
GdkDeviceWinpointer *device = GDK_DEVICE_WINPOINTER (current->data);
GList *next = current->next;
if (!winpointer_find_device_in_system_list (device, infos, infos_count))
{
GdkSeat *seat = gdk_device_get_seat (GDK_DEVICE (device));
_gdk_device_manager->winpointer_devices = g_list_delete_link (_gdk_device_manager->winpointer_devices,
current);
gdk_device_update_tool (GDK_DEVICE (device), NULL);
if (device->tool_pen)
gdk_seat_default_remove_tool (GDK_SEAT_DEFAULT (seat), device->tool_pen);
if (device->tool_eraser)
gdk_seat_default_remove_tool (GDK_SEAT_DEFAULT (seat), device->tool_eraser);
_gdk_device_set_associated_device (GDK_DEVICE (device), NULL);
_gdk_device_remove_physical_device (_gdk_device_manager->core_pointer, GDK_DEVICE (device));
gdk_seat_default_remove_physical_device (GDK_SEAT_DEFAULT (seat), GDK_DEVICE (device));
g_object_unref (device);
}
else
{
winpointer_device_update_scale_factors (device);
}
current = next;
}
/* create new gdk devices */
for (i = 0; i < infos_count; i++)
{
if (!winpointer_find_system_device_in_device_manager (&infos[i]))
{
winpointer_create_devices (&infos[i]);
}
}
g_free (infos);
}
static LRESULT CALLBACK
winpointer_notifications_window_procedure (HWND hWnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (uMsg)
{
case WM_POINTERDEVICECHANGE:
winpointer_enumerate_devices ();
return 0;
}
return DefWindowProcW (hWnd, uMsg, wParam, lParam);
}
static gboolean
winpointer_notif_window_create (void)
{
WNDCLASSEXW wndclassex;
memset (&wndclassex, 0, sizeof (wndclassex));
wndclassex.cbSize = sizeof (wndclassex);
wndclassex.lpszClassName = L"GdkWin32WinpointerNotificationsWindowClass";
wndclassex.lpfnWndProc = winpointer_notifications_window_procedure;
wndclassex.hInstance = this_module ();
if ((notifications_window_class = RegisterClassExW (&wndclassex)) == 0)
{
WIN32_API_FAILED ("RegisterClassExW");
return FALSE;
}
if (!(notifications_window_handle = CreateWindowExW (0,
(LPCWSTR)(guintptr)notifications_window_class,
L"GdkWin32 Winpointer Notifications",
0,
0, 0, 0, 0,
HWND_MESSAGE,
NULL,
this_module (),
NULL)))
{
WIN32_API_FAILED ("CreateWindowExW");
return FALSE;
}
return TRUE;
}
static gboolean
winpointer_ensure_procedures (void)
{
static HMODULE user32_dll = NULL;
if (!user32_dll)
{
user32_dll = LoadLibraryW (L"user32.dll");
if (!user32_dll)
{
WIN32_API_FAILED ("LoadLibraryW");
return FALSE;
}
registerPointerDeviceNotifications = (registerPointerDeviceNotifications_t)
GetProcAddress (user32_dll, "RegisterPointerDeviceNotifications");
getPointerDevices = (getPointerDevices_t)
GetProcAddress (user32_dll, "GetPointerDevices");
getPointerDeviceCursors = (getPointerDeviceCursors_t)
GetProcAddress (user32_dll, "GetPointerDeviceCursors");
getPointerDeviceRects = (getPointerDeviceRects_t)
GetProcAddress (user32_dll, "GetPointerDeviceRects");
getPointerType = (getPointerType_t)
GetProcAddress (user32_dll, "GetPointerType");
getPointerCursorId = (getPointerCursorId_t)
GetProcAddress (user32_dll, "GetPointerCursorId");
getPointerPenInfo = (getPointerPenInfo_t)
GetProcAddress (user32_dll, "GetPointerPenInfo");
getPointerTouchInfo = (getPointerTouchInfo_t)
GetProcAddress (user32_dll, "GetPointerTouchInfo");
getPointerPenInfoHistory = (getPointerPenInfoHistory_t)
GetProcAddress (user32_dll, "GetPointerPenInfoHistory");
getPointerTouchInfoHistory = (getPointerTouchInfoHistory_t)
GetProcAddress (user32_dll, "GetPointerTouchInfoHistory");
setGestureConfig = (setGestureConfig_t)
GetProcAddress (user32_dll, "SetGestureConfig");
setWindowFeedbackSetting = (setWindowFeedbackSetting_t)
GetProcAddress (user32_dll, "SetWindowFeedbackSetting");
}
return registerPointerDeviceNotifications &&
getPointerDevices &&
getPointerDeviceCursors &&
getPointerDeviceRects &&
getPointerType &&
getPointerCursorId &&
getPointerPenInfo &&
getPointerTouchInfo &&
getPointerPenInfoHistory &&
getPointerTouchInfoHistory &&
setGestureConfig;
}
gboolean
gdk_winpointer_initialize (void)
{
if (!winpointer_ensure_procedures ())
return FALSE;
if (!winpointer_notif_window_create ())
return FALSE;
if (!registerPointerDeviceNotifications (notifications_window_handle, FALSE))
{
WIN32_API_FAILED ("RegisterPointerDeviceNotifications");
return FALSE;
}
ignored_interactions = g_ptr_array_new ();
winpointer_enumerate_devices ();
return TRUE;
}
#ifndef MICROSOFT_TABLETPENSERVICE_PROPERTY
#define MICROSOFT_TABLETPENSERVICE_PROPERTY \
_T("MicrosoftTabletPenServiceProperty")
#endif
void
gdk_winpointer_initialize_surface (GdkSurface *surface)
{
HWND hwnd = GDK_SURFACE_HWND (surface);
ATOM key = 0;
HANDLE val = (HANDLE)(TABLET_DISABLE_PRESSANDHOLD |
TABLET_DISABLE_PENTAPFEEDBACK |
TABLET_DISABLE_PENBARRELFEEDBACK |
TABLET_DISABLE_FLICKS |
TABLET_DISABLE_FLICKFALLBACKKEYS);
winpointer_ensure_procedures ();
key = GlobalAddAtom (MICROSOFT_TABLETPENSERVICE_PROPERTY);
API_CALL (SetPropW, (hwnd, (LPCWSTR)(guintptr)key, val));
GlobalDeleteAtom (key);
if (setGestureConfig != NULL)
{
GESTURECONFIG gesture_config;
memset (&gesture_config, 0, sizeof (gesture_config));
gesture_config.dwID = 0;
gesture_config.dwWant = 0;
gesture_config.dwBlock = GC_ALLGESTURES;
API_CALL (setGestureConfig, (hwnd, 0, 1, &gesture_config, sizeof (gesture_config)));
}
if (setWindowFeedbackSetting != NULL)
{
FEEDBACK_TYPE feedbacks[] = {
FEEDBACK_TOUCH_CONTACTVISUALIZATION,
FEEDBACK_PEN_BARRELVISUALIZATION,
FEEDBACK_PEN_TAP,
FEEDBACK_PEN_DOUBLETAP,
FEEDBACK_PEN_PRESSANDHOLD,
FEEDBACK_PEN_RIGHTTAP,
FEEDBACK_TOUCH_TAP,
FEEDBACK_TOUCH_DOUBLETAP,
FEEDBACK_TOUCH_PRESSANDHOLD,
FEEDBACK_TOUCH_RIGHTTAP,
FEEDBACK_GESTURE_PRESSANDTAP
};
gsize i = 0;
for (i = 0; i < G_N_ELEMENTS (feedbacks); i++)
{
BOOL setting = FALSE;
API_CALL (setWindowFeedbackSetting, (hwnd, feedbacks[i], 0, sizeof (BOOL), &setting));
}
}
}
void
gdk_winpointer_finalize_surface (GdkSurface *surface)
{
HWND hwnd = GDK_SURFACE_HWND (surface);
ATOM key = 0;
key = GlobalAddAtom (MICROSOFT_TABLETPENSERVICE_PROPERTY);
RemovePropW (hwnd, (LPCWSTR)(guintptr)key);
GlobalDeleteAtom (key);
}
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