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gtk/gdk/win32/gdkdevicemanager-win32.c
Tor Lillqvist e748334327 Avoid potential DLL hijacking in Wintab code 
Load Wintab32.dll from an absolute path. A proper Wintab32.dll, if
present, should be in the Windows system directory, so load it from
there.
2010-09-09 15:44:12 +03:00

1124 lines
38 KiB
C
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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <gdk/gdk.h>
#include "gdkprivate-win32.h"
#include "gdkdevicemanager-win32.h"
#include "gdkdeviceprivate.h"
#include "gdkdevice-win32.h"
#include "gdkdevice-wintab.h"
#include <windows.h>
#include <wintab.h>
#define WINTAB32_DLL "Wintab32.dll"
#define PACKETDATA (PK_CONTEXT | PK_CURSOR | PK_BUTTONS | PK_X | PK_Y | PK_NORMAL_PRESSURE | PK_ORIENTATION)
/* We want everything in absolute mode */
#define PACKETMODE (0)
#include <pktdef.h>
#define DEBUG_WINTAB 1 /* Verbose debug messages enabled */
#define PROXIMITY_OUT_DELAY 200 /* In milliseconds, see set_ignore_core */
#define TWOPI (2 * G_PI)
static GList *wintab_contexts = NULL;
static GdkWindow *wintab_window = NULL;
static guint ignore_core_timer = 0;
extern gint _gdk_input_ignore_core;
typedef UINT (WINAPI *t_WTInfoA) (UINT a, UINT b, LPVOID c);
typedef UINT (WINAPI *t_WTInfoW) (UINT a, UINT b, LPVOID c);
typedef BOOL (WINAPI *t_WTEnable) (HCTX a, BOOL b);
typedef HCTX (WINAPI *t_WTOpenA) (HWND a, LPLOGCONTEXTA b, BOOL c);
typedef BOOL (WINAPI *t_WTOverlap) (HCTX a, BOOL b);
typedef BOOL (WINAPI *t_WTPacket) (HCTX a, UINT b, LPVOID c);
typedef int (WINAPI *t_WTQueueSizeSet) (HCTX a, int b);
static t_WTInfoA p_WTInfoA;
static t_WTInfoW p_WTInfoW;
static t_WTEnable p_WTEnable;
static t_WTOpenA p_WTOpenA;
static t_WTOverlap p_WTOverlap;
static t_WTPacket p_WTPacket;
static t_WTQueueSizeSet p_WTQueueSizeSet;
static void gdk_device_manager_win32_finalize (GObject *object);
static void gdk_device_manager_win32_constructed (GObject *object);
static GList * gdk_device_manager_win32_list_devices (GdkDeviceManager *device_manager,
GdkDeviceType type);
static GdkDevice * gdk_device_manager_win32_get_client_pointer (GdkDeviceManager *device_manager);
G_DEFINE_TYPE (GdkDeviceManagerWin32, gdk_device_manager_win32, GDK_TYPE_DEVICE_MANAGER)
static void
gdk_device_manager_win32_class_init (GdkDeviceManagerWin32Class *klass)
{
GdkDeviceManagerClass *device_manager_class = GDK_DEVICE_MANAGER_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gdk_device_manager_win32_finalize;
object_class->constructed = gdk_device_manager_win32_constructed;
device_manager_class->list_devices = gdk_device_manager_win32_list_devices;
device_manager_class->get_client_pointer = gdk_device_manager_win32_get_client_pointer;
}
static GdkDevice *
create_core_pointer (GdkDeviceManager *device_manager)
{
return g_object_new (GDK_TYPE_DEVICE_WIN32,
"name", "Core Pointer",
"type", GDK_DEVICE_TYPE_MASTER,
"input-source", GDK_SOURCE_MOUSE,
"input-mode", GDK_MODE_SCREEN,
"has-cursor", TRUE,
"display", _gdk_display,
"device-manager", device_manager,
NULL);
}
static GdkDevice *
create_core_keyboard (GdkDeviceManager *device_manager)
{
return g_object_new (GDK_TYPE_DEVICE_WIN32,
"name", "Core Keyboard",
"type", GDK_DEVICE_TYPE_MASTER,
"input-source", GDK_SOURCE_KEYBOARD,
"input-mode", GDK_MODE_SCREEN,
"has-cursor", FALSE,
"display", _gdk_display,
"device-manager", device_manager,
NULL);
}
static void
gdk_device_manager_win32_init (GdkDeviceManagerWin32 *device_manager_win32)
{
}
static void
gdk_device_manager_win32_finalize (GObject *object)
{
GdkDeviceManagerWin32 *device_manager_win32;
device_manager_win32 = GDK_DEVICE_MANAGER_WIN32 (object);
g_object_unref (device_manager_win32->core_pointer);
g_object_unref (device_manager_win32->core_keyboard);
G_OBJECT_CLASS (gdk_device_manager_win32_parent_class)->finalize (object);
}
#if DEBUG_WINTAB
static void
print_lc(LOGCONTEXT *lc)
{
g_print ("lcName = %s\n", lc->lcName);
g_print ("lcOptions =");
if (lc->lcOptions & CXO_SYSTEM) g_print (" CXO_SYSTEM");
if (lc->lcOptions & CXO_PEN) g_print (" CXO_PEN");
if (lc->lcOptions & CXO_MESSAGES) g_print (" CXO_MESSAGES");
if (lc->lcOptions & CXO_MARGIN) g_print (" CXO_MARGIN");
if (lc->lcOptions & CXO_MGNINSIDE) g_print (" CXO_MGNINSIDE");
if (lc->lcOptions & CXO_CSRMESSAGES) g_print (" CXO_CSRMESSAGES");
g_print ("\n");
g_print ("lcStatus =");
if (lc->lcStatus & CXS_DISABLED) g_print (" CXS_DISABLED");
if (lc->lcStatus & CXS_OBSCURED) g_print (" CXS_OBSCURED");
if (lc->lcStatus & CXS_ONTOP) g_print (" CXS_ONTOP");
g_print ("\n");
g_print ("lcLocks =");
if (lc->lcLocks & CXL_INSIZE) g_print (" CXL_INSIZE");
if (lc->lcLocks & CXL_INASPECT) g_print (" CXL_INASPECT");
if (lc->lcLocks & CXL_SENSITIVITY) g_print (" CXL_SENSITIVITY");
if (lc->lcLocks & CXL_MARGIN) g_print (" CXL_MARGIN");
g_print ("\n");
g_print ("lcMsgBase = %#x, lcDevice = %#x, lcPktRate = %d\n",
lc->lcMsgBase, lc->lcDevice, lc->lcPktRate);
g_print ("lcPktData =");
if (lc->lcPktData & PK_CONTEXT) g_print (" PK_CONTEXT");
if (lc->lcPktData & PK_STATUS) g_print (" PK_STATUS");
if (lc->lcPktData & PK_TIME) g_print (" PK_TIME");
if (lc->lcPktData & PK_CHANGED) g_print (" PK_CHANGED");
if (lc->lcPktData & PK_SERIAL_NUMBER) g_print (" PK_SERIAL_NUMBER");
if (lc->lcPktData & PK_CURSOR) g_print (" PK_CURSOR");
if (lc->lcPktData & PK_BUTTONS) g_print (" PK_BUTTONS");
if (lc->lcPktData & PK_X) g_print (" PK_X");
if (lc->lcPktData & PK_Y) g_print (" PK_Y");
if (lc->lcPktData & PK_Z) g_print (" PK_Z");
if (lc->lcPktData & PK_NORMAL_PRESSURE) g_print (" PK_NORMAL_PRESSURE");
if (lc->lcPktData & PK_TANGENT_PRESSURE) g_print (" PK_TANGENT_PRESSURE");
if (lc->lcPktData & PK_ORIENTATION) g_print (" PK_ORIENTATION");
if (lc->lcPktData & PK_ROTATION) g_print (" PK_ROTATION");
g_print ("\n");
g_print ("lcPktMode =");
if (lc->lcPktMode & PK_CONTEXT) g_print (" PK_CONTEXT");
if (lc->lcPktMode & PK_STATUS) g_print (" PK_STATUS");
if (lc->lcPktMode & PK_TIME) g_print (" PK_TIME");
if (lc->lcPktMode & PK_CHANGED) g_print (" PK_CHANGED");
if (lc->lcPktMode & PK_SERIAL_NUMBER) g_print (" PK_SERIAL_NUMBER");
if (lc->lcPktMode & PK_CURSOR) g_print (" PK_CURSOR");
if (lc->lcPktMode & PK_BUTTONS) g_print (" PK_BUTTONS");
if (lc->lcPktMode & PK_X) g_print (" PK_X");
if (lc->lcPktMode & PK_Y) g_print (" PK_Y");
if (lc->lcPktMode & PK_Z) g_print (" PK_Z");
if (lc->lcPktMode & PK_NORMAL_PRESSURE) g_print (" PK_NORMAL_PRESSURE");
if (lc->lcPktMode & PK_TANGENT_PRESSURE) g_print (" PK_TANGENT_PRESSURE");
if (lc->lcPktMode & PK_ORIENTATION) g_print (" PK_ORIENTATION");
if (lc->lcPktMode & PK_ROTATION) g_print (" PK_ROTATION");
g_print ("\n");
g_print ("lcMoveMask =");
if (lc->lcMoveMask & PK_CONTEXT) g_print (" PK_CONTEXT");
if (lc->lcMoveMask & PK_STATUS) g_print (" PK_STATUS");
if (lc->lcMoveMask & PK_TIME) g_print (" PK_TIME");
if (lc->lcMoveMask & PK_CHANGED) g_print (" PK_CHANGED");
if (lc->lcMoveMask & PK_SERIAL_NUMBER) g_print (" PK_SERIAL_NUMBER");
if (lc->lcMoveMask & PK_CURSOR) g_print (" PK_CURSOR");
if (lc->lcMoveMask & PK_BUTTONS) g_print (" PK_BUTTONS");
if (lc->lcMoveMask & PK_X) g_print (" PK_X");
if (lc->lcMoveMask & PK_Y) g_print (" PK_Y");
if (lc->lcMoveMask & PK_Z) g_print (" PK_Z");
if (lc->lcMoveMask & PK_NORMAL_PRESSURE) g_print (" PK_NORMAL_PRESSURE");
if (lc->lcMoveMask & PK_TANGENT_PRESSURE) g_print (" PK_TANGENT_PRESSURE");
if (lc->lcMoveMask & PK_ORIENTATION) g_print (" PK_ORIENTATION");
if (lc->lcMoveMask & PK_ROTATION) g_print (" PK_ROTATION");
g_print ("\n");
g_print ("lcBtnDnMask = %#x, lcBtnUpMask = %#x\n",
(guint) lc->lcBtnDnMask, (guint) lc->lcBtnUpMask);
g_print ("lcInOrgX = %ld, lcInOrgY = %ld, lcInOrgZ = %ld\n",
lc->lcInOrgX, lc->lcInOrgY, lc->lcInOrgZ);
g_print ("lcInExtX = %ld, lcInExtY = %ld, lcInExtZ = %ld\n",
lc->lcInExtX, lc->lcInExtY, lc->lcInExtZ);
g_print ("lcOutOrgX = %ld, lcOutOrgY = %ld, lcOutOrgZ = %ld\n",
lc->lcOutOrgX, lc->lcOutOrgY, lc->lcOutOrgZ);
g_print ("lcOutExtX = %ld, lcOutExtY = %ld, lcOutExtZ = %ld\n",
lc->lcOutExtX, lc->lcOutExtY, lc->lcOutExtZ);
g_print ("lcSensX = %g, lcSensY = %g, lcSensZ = %g\n",
lc->lcSensX / 65536., lc->lcSensY / 65536., lc->lcSensZ / 65536.);
g_print ("lcSysMode = %d\n", lc->lcSysMode);
g_print ("lcSysOrgX = %d, lcSysOrgY = %d\n",
lc->lcSysOrgX, lc->lcSysOrgY);
g_print ("lcSysExtX = %d, lcSysExtY = %d\n",
lc->lcSysExtX, lc->lcSysExtY);
g_print ("lcSysSensX = %g, lcSysSensY = %g\n",
lc->lcSysSensX / 65536., lc->lcSysSensY / 65536.);
}
static void
print_cursor (int index)
{
int size;
int i;
char *name;
BOOL active;
WTPKT wtpkt;
BYTE buttons;
BYTE buttonbits;
char *btnnames;
char *p;
BYTE buttonmap[32];
BYTE sysbtnmap[32];
BYTE npbutton;
UINT npbtnmarks[2];
UINT *npresponse;
BYTE tpbutton;
UINT tpbtnmarks[2];
UINT *tpresponse;
DWORD physid;
UINT mode;
UINT minpktdata;
UINT minbuttons;
UINT capabilities;
size = (*p_WTInfoA) (WTI_CURSORS + index, CSR_NAME, NULL);
name = g_malloc (size + 1);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_NAME, name);
g_print ("NAME: %s\n", name);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_ACTIVE, &active);
g_print ("ACTIVE: %s\n", active ? "YES" : "NO");
(*p_WTInfoA) (WTI_CURSORS + index, CSR_PKTDATA, &wtpkt);
g_print ("PKTDATA: %#x:", (guint) wtpkt);
#define BIT(x) if (wtpkt & PK_##x) g_print (" " #x)
BIT (CONTEXT);
BIT (STATUS);
BIT (TIME);
BIT (CHANGED);
BIT (SERIAL_NUMBER);
BIT (BUTTONS);
BIT (X);
BIT (Y);
BIT (Z);
BIT (NORMAL_PRESSURE);
BIT (TANGENT_PRESSURE);
BIT (ORIENTATION);
BIT (ROTATION);
#undef BIT
g_print ("\n");
(*p_WTInfoA) (WTI_CURSORS + index, CSR_BUTTONS, &buttons);
g_print ("BUTTONS: %d\n", buttons);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_BUTTONBITS, &buttonbits);
g_print ("BUTTONBITS: %d\n", buttonbits);
size = (*p_WTInfoA) (WTI_CURSORS + index, CSR_BTNNAMES, NULL);
g_print ("BTNNAMES:");
if (size > 0)
{
btnnames = g_malloc (size + 1);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_BTNNAMES, btnnames);
p = btnnames;
while (*p)
{
g_print (" %s", p);
p += strlen (p) + 1;
}
}
g_print ("\n");
(*p_WTInfoA) (WTI_CURSORS + index, CSR_BUTTONMAP, buttonmap);
g_print ("BUTTONMAP:");
for (i = 0; i < buttons; i++)
g_print (" %d", buttonmap[i]);
g_print ("\n");
(*p_WTInfoA) (WTI_CURSORS + index, CSR_SYSBTNMAP, sysbtnmap);
g_print ("SYSBTNMAP:");
for (i = 0; i < buttons; i++)
g_print (" %d", sysbtnmap[i]);
g_print ("\n");
(*p_WTInfoA) (WTI_CURSORS + index, CSR_NPBUTTON, &npbutton);
g_print ("NPBUTTON: %d\n", npbutton);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_NPBTNMARKS, npbtnmarks);
g_print ("NPBTNMARKS: %d %d\n", npbtnmarks[0], npbtnmarks[1]);
size = (*p_WTInfoA) (WTI_CURSORS + index, CSR_NPRESPONSE, NULL);
g_print ("NPRESPONSE:");
if (size > 0)
{
npresponse = g_malloc (size);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_NPRESPONSE, npresponse);
for (i = 0; i < size / sizeof (UINT); i++)
g_print (" %d", npresponse[i]);
}
g_print ("\n");
(*p_WTInfoA) (WTI_CURSORS + index, CSR_TPBUTTON, &tpbutton);
g_print ("TPBUTTON: %d\n", tpbutton);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_TPBTNMARKS, tpbtnmarks);
g_print ("TPBTNMARKS: %d %d\n", tpbtnmarks[0], tpbtnmarks[1]);
size = (*p_WTInfoA) (WTI_CURSORS + index, CSR_TPRESPONSE, NULL);
g_print ("TPRESPONSE:");
if (size > 0)
{
tpresponse = g_malloc (size);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_TPRESPONSE, tpresponse);
for (i = 0; i < size / sizeof (UINT); i++)
g_print (" %d", tpresponse[i]);
}
g_print ("\n");
(*p_WTInfoA) (WTI_CURSORS + index, CSR_PHYSID, &physid);
g_print ("PHYSID: %#x\n", (guint) physid);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_CAPABILITIES, &capabilities);
g_print ("CAPABILITIES: %#x:", capabilities);
#define BIT(x) if (capabilities & CRC_##x) g_print (" " #x)
BIT (MULTIMODE);
BIT (AGGREGATE);
BIT (INVERT);
#undef BIT
g_print ("\n");
if (capabilities & CRC_MULTIMODE)
{
(*p_WTInfoA) (WTI_CURSORS + index, CSR_MODE, &mode);
g_print ("MODE: %d\n", mode);
}
if (capabilities & CRC_AGGREGATE)
{
(*p_WTInfoA) (WTI_CURSORS + index, CSR_MINPKTDATA, &minpktdata);
g_print ("MINPKTDATA: %d\n", minpktdata);
(*p_WTInfoA) (WTI_CURSORS + index, CSR_MINBUTTONS, &minbuttons);
g_print ("MINBUTTONS: %d\n", minbuttons);
}
}
#endif
static void
_gdk_input_wintab_init_check (GdkDeviceManagerWin32 *device_manager)
{
static gboolean wintab_initialized = FALSE;
GdkDeviceWintab *device;
GdkWindowAttr wa;
WORD specversion;
HCTX *hctx;
UINT ndevices, ncursors, ncsrtypes, firstcsr, hardware;
BOOL active;
DWORD physid;
AXIS axis_x, axis_y, axis_npressure, axis_or[3];
int i, devix, cursorix, num_axes = 0;
wchar_t devname[100], csrname[100];
gchar *devname_utf8, *csrname_utf8, *device_name;
BOOL defcontext_done;
HMODULE wintab32;
char *wintab32_dll_path;
char dummy;
int n, k;
if (wintab_initialized)
return;
wintab_initialized = TRUE;
wintab_contexts = NULL;
if (_gdk_input_ignore_wintab)
return;
n = GetSystemDirectory (&dummy, 0);
if (n <= 0)
return;
wintab32_dll_path = g_malloc (n + 1 + strlen (WINTAB32_DLL));
k = GetSystemDirectory (wintab32_dll_path, n);
if (k == 0 || k > n)
{
g_free (wintab32_dll_path);
return;
}
if (!G_IS_DIR_SEPARATOR (wintab32_dll_path[strlen (wintab32_dll_path) -1]))
strcat (wintab32_dll_path, G_DIR_SEPARATOR_S);
strcat (wintab32_dll_path, WINTAB32_DLL);
if ((wintab32 = LoadLibrary (wintab32_dll_path)) == NULL)
return;
if ((p_WTInfoA = (t_WTInfoA) GetProcAddress (wintab32, "WTInfoA")) == NULL)
return;
if ((p_WTInfoW = (t_WTInfoW) GetProcAddress (wintab32, "WTInfoW")) == NULL)
return;
if ((p_WTEnable = (t_WTEnable) GetProcAddress (wintab32, "WTEnable")) == NULL)
return;
if ((p_WTOpenA = (t_WTOpenA) GetProcAddress (wintab32, "WTOpenA")) == NULL)
return;
if ((p_WTOverlap = (t_WTOverlap) GetProcAddress (wintab32, "WTOverlap")) == NULL)
return;
if ((p_WTPacket = (t_WTPacket) GetProcAddress (wintab32, "WTPacket")) == NULL)
return;
if ((p_WTQueueSizeSet = (t_WTQueueSizeSet) GetProcAddress (wintab32, "WTQueueSizeSet")) == NULL)
return;
if (!(*p_WTInfoA) (0, 0, NULL))
return;
(*p_WTInfoA) (WTI_INTERFACE, IFC_SPECVERSION, &specversion);
GDK_NOTE (INPUT, g_print ("Wintab interface version %d.%d\n",
HIBYTE (specversion), LOBYTE (specversion)));
(*p_WTInfoA) (WTI_INTERFACE, IFC_NDEVICES, &ndevices);
(*p_WTInfoA) (WTI_INTERFACE, IFC_NCURSORS, &ncursors);
#if DEBUG_WINTAB
GDK_NOTE (INPUT, g_print ("NDEVICES: %d, NCURSORS: %d\n",
ndevices, ncursors));
#endif
/* Create a dummy window to receive wintab events */
wa.wclass = GDK_INPUT_OUTPUT;
wa.event_mask = GDK_ALL_EVENTS_MASK;
wa.width = 2;
wa.height = 2;
wa.x = -100;
wa.y = -100;
wa.window_type = GDK_WINDOW_TOPLEVEL;
if ((wintab_window = gdk_window_new (NULL, &wa, GDK_WA_X|GDK_WA_Y)) == NULL)
{
g_warning ("gdk_input_wintab_init: gdk_window_new failed");
return;
}
g_object_ref (wintab_window);
for (devix = 0; devix < ndevices; devix++)
{
LOGCONTEXT lc;
/* We open the Wintab device (hmm, what if there are several, or
* can there even be several, probably not?) as a system
* pointing device, i.e. it controls the normal Windows
* cursor. This seems much more natural.
*/
(*p_WTInfoW) (WTI_DEVICES + devix, DVC_NAME, devname);
devname_utf8 = g_utf16_to_utf8 (devname, -1, NULL, NULL, NULL);
#ifdef DEBUG_WINTAB
GDK_NOTE (INPUT, (g_print("Device %d: %s\n", devix, devname_utf8)));
#endif
(*p_WTInfoA) (WTI_DEVICES + devix, DVC_NCSRTYPES, &ncsrtypes);
(*p_WTInfoA) (WTI_DEVICES + devix, DVC_FIRSTCSR, &firstcsr);
(*p_WTInfoA) (WTI_DEVICES + devix, DVC_HARDWARE, &hardware);
(*p_WTInfoA) (WTI_DEVICES + devix, DVC_X, &axis_x);
(*p_WTInfoA) (WTI_DEVICES + devix, DVC_Y, &axis_y);
(*p_WTInfoA) (WTI_DEVICES + devix, DVC_NPRESSURE, &axis_npressure);
(*p_WTInfoA) (WTI_DEVICES + devix, DVC_ORIENTATION, axis_or);
defcontext_done = FALSE;
if (HIBYTE (specversion) > 1 || LOBYTE (specversion) >= 1)
{
/* Try to get device-specific default context */
/* Some drivers, e.g. Aiptek, don't provide this info */
if ((*p_WTInfoA) (WTI_DSCTXS + devix, 0, &lc) > 0)
defcontext_done = TRUE;
#if DEBUG_WINTAB
if (defcontext_done)
GDK_NOTE (INPUT, (g_print("Using device-specific default context\n")));
else
GDK_NOTE (INPUT, (g_print("Note: Driver did not provide device specific default context info despite claiming to support version 1.1\n")));
#endif
}
if (!defcontext_done)
(*p_WTInfoA) (WTI_DEFSYSCTX, 0, &lc);
#if DEBUG_WINTAB
GDK_NOTE (INPUT, (g_print("Default context:\n"), print_lc(&lc)));
#endif
lc.lcOptions |= CXO_MESSAGES;
lc.lcStatus = 0;
lc.lcMsgBase = WT_DEFBASE;
lc.lcPktRate = 0;
lc.lcPktData = PACKETDATA;
lc.lcPktMode = PACKETMODE;
lc.lcMoveMask = PACKETDATA;
lc.lcBtnUpMask = lc.lcBtnDnMask = ~0;
lc.lcOutOrgX = axis_x.axMin;
lc.lcOutOrgY = axis_y.axMin;
lc.lcOutExtX = axis_x.axMax - axis_x.axMin;
lc.lcOutExtY = axis_y.axMax - axis_y.axMin;
lc.lcOutExtY = -lc.lcOutExtY; /* We want Y growing downward */
#if DEBUG_WINTAB
GDK_NOTE (INPUT, (g_print("context for device %d:\n", devix),
print_lc(&lc)));
#endif
hctx = g_new (HCTX, 1);
if ((*hctx = (*p_WTOpenA) (GDK_WINDOW_HWND (wintab_window), &lc, TRUE)) == NULL)
{
g_warning ("gdk_input_wintab_init: WTOpen failed");
return;
}
GDK_NOTE (INPUT, g_print ("opened Wintab device %d %p\n",
devix, *hctx));
wintab_contexts = g_list_append (wintab_contexts, hctx);
#if 0
(*p_WTEnable) (*hctx, TRUE);
#endif
(*p_WTOverlap) (*hctx, TRUE);
#if DEBUG_WINTAB
GDK_NOTE (INPUT, (g_print("context for device %d after WTOpen:\n", devix),
print_lc(&lc)));
#endif
/* Increase packet queue size to reduce the risk of lost packets.
* According to the specs, if the function fails we must try again
* with a smaller queue size.
*/
GDK_NOTE (INPUT, g_print("Attempting to increase queue size\n"));
for (i = 32; i >= 1; i >>= 1)
{
if ((*p_WTQueueSizeSet) (*hctx, i))
{
GDK_NOTE (INPUT, g_print("Queue size set to %d\n", i));
break;
}
}
if (!i)
GDK_NOTE (INPUT, g_print("Whoops, no queue size could be set\n"));
for (cursorix = firstcsr; cursorix < firstcsr + ncsrtypes; cursorix++)
{
#ifdef DEBUG_WINTAB
GDK_NOTE (INPUT, (g_print("Cursor %d:\n", cursorix), print_cursor (cursorix)));
#endif
active = FALSE;
(*p_WTInfoA) (WTI_CURSORS + cursorix, CSR_ACTIVE, &active);
if (!active)
continue;
/* Wacom tablets seem to report cursors corresponding to
* nonexistent pens or pucks. At least my ArtPad II reports
* six cursors: a puck, pressure stylus and eraser stylus,
* and then the same three again. I only have a
* pressure-sensitive pen. The puck instances, and the
* second instances of the styluses report physid zero. So
* at least for Wacom, skip cursors with physid zero.
*/
(*p_WTInfoA) (WTI_CURSORS + cursorix, CSR_PHYSID, &physid);
if (wcscmp (devname, L"WACOM Tablet") == 0 && physid == 0)
continue;
(*p_WTInfoW) (WTI_CURSORS + cursorix, CSR_NAME, csrname);
csrname_utf8 = g_utf16_to_utf8 (csrname, -1, NULL, NULL, NULL);
device_name = g_strconcat (devname_utf8, " ", csrname_utf8, NULL);
device = g_object_new (GDK_TYPE_DEVICE_WINTAB,
"name", device_name,
"type", GDK_DEVICE_TYPE_SLAVE,
"source", GDK_SOURCE_PEN,
"mode", GDK_MODE_SCREEN,
"has-cursor", FALSE,
"display", _gdk_display,
"device-manager", device_manager,
NULL);
g_free (csrname_utf8);
device->hctx = *hctx;
device->cursor = cursorix;
(*p_WTInfoA) (WTI_CURSORS + cursorix, CSR_PKTDATA, &device->pktdata);
if (device->pktdata & PK_X)
{
_gdk_device_add_axis (GDK_DEVICE (device),
GDK_NONE,
GDK_AXIS_X,
axis_x.axMin,
axis_x.axMax,
axis_x.axResolution / 65535);
num_axes++;
}
if (device->pktdata & PK_Y)
{
_gdk_device_add_axis (GDK_DEVICE (device),
GDK_NONE,
GDK_AXIS_Y,
axis_y.axMin,
axis_y.axMax,
axis_y.axResolution / 65535);
num_axes++;
}
if (device->pktdata & PK_NORMAL_PRESSURE)
{
_gdk_device_add_axis (GDK_DEVICE (device),
GDK_NONE,
GDK_AXIS_PRESSURE,
axis_npressure.axMin,
axis_npressure.axMax,
axis_npressure.axResolution / 65535);
num_axes++;
}
/* The wintab driver for the Wacom ArtPad II reports
* PK_ORIENTATION in CSR_PKTDATA, but the tablet doesn't
* actually sense tilt. Catch this by noticing that the
* orientation axis's azimuth resolution is zero.
*/
if ((device->pktdata & PK_ORIENTATION) && axis_or[0].axResolution == 0)
{
device->orientation_axes[0] = axis_or[0];
device->orientation_axes[1] = axis_or[1];
/* Wintab gives us aximuth and altitude, which
* we convert to x and y tilt in the -1000..1000 range
*/
_gdk_device_add_axis (GDK_DEVICE (device),
GDK_NONE,
GDK_AXIS_XTILT,
-1000,
1000,
1000);
_gdk_device_add_axis (GDK_DEVICE (device),
GDK_NONE,
GDK_AXIS_YTILT,
-1000,
1000,
1000);
num_axes += 2;
}
device->last_axis_data = g_new (gint, num_axes);
GDK_NOTE (INPUT, g_print ("device: (%d) %s axes: %d\n",
cursorix,
device_name,
num_axes));
#if 0
for (i = 0; i < gdkdev->info.num_axes; i++)
GDK_NOTE (INPUT, g_print ("... axis %d: %d--%d@%d\n",
i,
gdkdev->axes[i].min_value,
gdkdev->axes[i].max_value,
gdkdev->axes[i].resolution));
#endif
device_manager->wintab_devices = g_list_append (device_manager->wintab_devices,
device);
g_free (device_name);
}
g_free (devname_utf8);
}
}
static void
gdk_device_manager_win32_constructed (GObject *object)
{
GdkDeviceManagerWin32 *device_manager;
device_manager = GDK_DEVICE_MANAGER_WIN32 (object);
device_manager->core_pointer = create_core_pointer (GDK_DEVICE_MANAGER (device_manager));
device_manager->core_keyboard = create_core_keyboard (GDK_DEVICE_MANAGER (device_manager));
_gdk_device_set_associated_device (device_manager->core_pointer, device_manager->core_keyboard);
_gdk_device_set_associated_device (device_manager->core_keyboard, device_manager->core_pointer);
_gdk_input_wintab_init_check (device_manager);
}
static GList *
gdk_device_manager_win32_list_devices (GdkDeviceManager *device_manager,
GdkDeviceType type)
{
GdkDeviceManagerWin32 *device_manager_win32;
GList *devices = NULL;
device_manager_win32 = (GdkDeviceManagerWin32 *) device_manager;
if (type == GDK_DEVICE_TYPE_MASTER)
{
devices = g_list_prepend (devices, device_manager_win32->core_keyboard);
devices = g_list_prepend (devices, device_manager_win32->core_pointer);
}
else if (type == GDK_DEVICE_TYPE_FLOATING)
devices = g_list_copy (device_manager_win32->wintab_devices);
return devices;
}
static GdkDevice *
gdk_device_manager_win32_get_client_pointer (GdkDeviceManager *device_manager)
{
GdkDeviceManagerWin32 *device_manager_win32;
device_manager_win32 = (GdkDeviceManagerWin32 *) device_manager;
return device_manager_win32->core_pointer;
}
void
_gdk_input_set_tablet_active (void)
{
GList *tmp_list;
HCTX *hctx;
/* Bring the contexts to the top of the overlap order when one of the
* application's windows is activated */
if (!wintab_contexts)
return; /* No tablet devices found, or Wintab not initialized yet */
GDK_NOTE (INPUT, g_print ("_gdk_input_set_tablet_active: "
"Bringing Wintab contexts to the top of the overlap order\n"));
tmp_list = wintab_contexts;
while (tmp_list)
{
hctx = (HCTX *) (tmp_list->data);
(*p_WTOverlap) (*hctx, TRUE);
tmp_list = tmp_list->next;
}
}
static void
decode_tilt (gint *axis_data,
AXIS *axes,
PACKET *packet)
{
double az, el;
/* As I don't have a tilt-sensing tablet,
* I cannot test this code.
*/
az = TWOPI * packet->pkOrientation.orAzimuth /
(axes[0].axResolution / 65536.);
el = TWOPI * packet->pkOrientation.orAltitude /
(axes[1].axResolution / 65536.);
/* X tilt */
axis_data[0] = cos (az) * cos (el) * 1000;
/* Y tilt */
axis_data[1] = sin (az) * cos (el) * 1000;
}
/*
* Get the currently active keyboard modifiers (ignoring the mouse buttons)
* We could use gdk_window_get_pointer but that function does a lot of other
* expensive things besides getting the modifiers. This code is somewhat based
* on build_pointer_event_state from gdkevents-win32.c
*/
static guint
get_modifier_key_state (void)
{
guint state;
state = 0;
/* High-order bit is up/down, low order bit is toggled/untoggled */
if (GetKeyState (VK_CONTROL) < 0)
state |= GDK_CONTROL_MASK;
if (GetKeyState (VK_SHIFT) < 0)
state |= GDK_SHIFT_MASK;
if (GetKeyState (VK_MENU) < 0)
state |= GDK_MOD1_MASK;
if (GetKeyState (VK_CAPITAL) & 0x1)
state |= GDK_LOCK_MASK;
return state;
}
static gboolean
ignore_core_timefunc (gpointer data)
{
/* The delay has passed */
_gdk_input_ignore_core = FALSE;
ignore_core_timer = 0;
return FALSE; /* remove timeout */
}
/*
* Set or unset the _gdk_input_ignore_core variable that tells GDK
* to ignore events for the core pointer when the tablet is in proximity
* The unsetting is delayed slightly so that if a tablet event arrives
* just after proximity out, it does not cause a core pointer event
* which e.g. causes GIMP to switch tools.
*/
static void
set_ignore_core (gboolean ignore)
{
if (ignore)
{
_gdk_input_ignore_core = TRUE;
/* Remove any pending clear */
if (ignore_core_timer)
{
g_source_remove (ignore_core_timer);
ignore_core_timer = 0;
}
}
else if (!ignore_core_timer)
ignore_core_timer = gdk_threads_add_timeout (PROXIMITY_OUT_DELAY,
ignore_core_timefunc, NULL);
}
static GdkDeviceWintab *
_gdk_device_manager_find_wintab_device (HCTX hctx,
UINT cursor)
{
GdkDeviceManagerWin32 *device_manager;
GdkDeviceWintab *device;
GList *tmp_list;
device_manager = GDK_DEVICE_MANAGER_WIN32 (gdk_display_get_device_manager (_gdk_display));
tmp_list = device_manager->wintab_devices;
while (tmp_list)
{
device = tmp_list->data;
tmp_list = tmp_list->next;
if (device->hctx == hctx &&
device->cursor == cursor)
return device;
}
return NULL;
}
gboolean
_gdk_input_other_event (GdkEvent *event,
MSG *msg,
GdkWindow *window)
{
GdkDisplay *display;
GdkWindowObject *obj;
GdkDeviceWintab *device = NULL;
GdkDeviceGrabInfo *last_grab;
GdkEventMask masktest;
guint key_state;
POINT pt;
PACKET packet;
gdouble root_x, root_y;
gint num_axes;
gint x, y;
guint translated_buttons, button_diff, button_mask;
/* Translation from tablet button state to GDK button state for
* buttons 1-3 - swap button 2 and 3.
*/
static guint button_map[8] = {0, 1, 4, 5, 2, 3, 6, 7};
if (event->any.window != wintab_window)
{
g_warning ("_gdk_input_other_event: not wintab_window?");
return FALSE;
}
window = gdk_window_at_pointer (&x, &y);
if (window == NULL)
window = _gdk_root;
g_object_ref (window);
display = gdk_drawable_get_display (window);
GDK_NOTE (EVENTS_OR_INPUT,
g_print ("_gdk_input_other_event: window=%p %+d%+d\n",
GDK_WINDOW_HWND (window), x, y));
if (msg->message == WT_PACKET)
{
if (!(*p_WTPacket) ((HCTX) msg->lParam, msg->wParam, &packet))
return FALSE;
}
obj = GDK_WINDOW_OBJECT (window);
switch (msg->message)
{
case WT_PACKET:
/* Don't produce any button or motion events while a window is being
* moved or resized, see bug #151090.
*/
if (_modal_operation_in_progress)
{
GDK_NOTE (EVENTS_OR_INPUT, g_print ("... ignored when moving/sizing\n"));
return FALSE;
}
if ((device = _gdk_device_manager_find_wintab_device ((HCTX) msg->lParam,
packet.pkCursor)) == NULL)
return FALSE;
if (gdk_device_get_mode (GDK_DEVICE (device)) == GDK_MODE_DISABLED)
return FALSE;
last_grab = _gdk_display_get_last_device_grab (_gdk_display, GDK_DEVICE (device));
if (last_grab && last_grab->window)
{
g_object_unref (window);
window = g_object_ref (last_grab->window);
obj = GDK_WINDOW_OBJECT (window);
}
if (window == _gdk_root)
{
GDK_NOTE (EVENTS_OR_INPUT, g_print ("... is root\n"));
return FALSE;
}
num_axes = 0;
if (device->pktdata & PK_X)
device->last_axis_data[num_axes++] = packet.pkX;
if (device->pktdata & PK_Y)
device->last_axis_data[num_axes++] = packet.pkY;
if (device->pktdata & PK_NORMAL_PRESSURE)
device->last_axis_data[num_axes++] = packet.pkNormalPressure;
if (device->pktdata & PK_ORIENTATION)
{
decode_tilt (device->last_axis_data + num_axes,
device->orientation_axes, &packet);
num_axes += 2;
}
translated_buttons = button_map[packet.pkButtons & 0x07] | (packet.pkButtons & ~0x07);
if (translated_buttons != device->button_state)
{
/* At least one button has changed state so produce a button event
* If more than one button has changed state (unlikely),
* just care about the first and act on the next the next time
* we get a packet
*/
button_diff = translated_buttons ^ device->button_state;
/* Gdk buttons are numbered 1.. */
event->button.button = 1;
for (button_mask = 1; button_mask != 0x80000000;
button_mask <<= 1, event->button.button++)
{
if (button_diff & button_mask)
{
/* Found a button that has changed state */
break;
}
}
if (!(translated_buttons & button_mask))
{
event->any.type = GDK_BUTTON_RELEASE;
masktest = GDK_BUTTON_RELEASE_MASK;
}
else
{
event->any.type = GDK_BUTTON_PRESS;
masktest = GDK_BUTTON_PRESS_MASK;
}
device->button_state ^= button_mask;
}
else
{
event->any.type = GDK_MOTION_NOTIFY;
masktest = GDK_POINTER_MOTION_MASK;
if (device->button_state & (1 << 0))
masktest |= GDK_BUTTON_MOTION_MASK | GDK_BUTTON1_MOTION_MASK;
if (device->button_state & (1 << 1))
masktest |= GDK_BUTTON_MOTION_MASK | GDK_BUTTON2_MOTION_MASK;
if (device->button_state & (1 << 2))
masktest |= GDK_BUTTON_MOTION_MASK | GDK_BUTTON3_MOTION_MASK;
}
/* Now we can check if the window wants the event, and
* propagate if necessary.
*/
while (gdk_window_get_device_events (window, GDK_DEVICE (device)) == 0)
{
GDK_NOTE (EVENTS_OR_INPUT, g_print ("... not selected\n"));
if (obj->parent == GDK_WINDOW_OBJECT (_gdk_root))
return FALSE;
/* It is not good to propagate the extended events up to the parent
* if this window wants normal (not extended) motion/button events */
if (obj->event_mask & masktest)
{
GDK_NOTE (EVENTS_OR_INPUT,
g_print ("... wants ordinary event, ignoring this\n"));
return FALSE;
}
pt.x = x;
pt.y = y;
ClientToScreen (GDK_WINDOW_HWND (window), &pt);
g_object_unref (window);
window = (GdkWindow *) obj->parent;
obj = GDK_WINDOW_OBJECT (window);
g_object_ref (window);
ScreenToClient (GDK_WINDOW_HWND (window), &pt);
x = pt.x;
y = pt.y;
GDK_NOTE (EVENTS_OR_INPUT, g_print ("... propagating to %p %+d%+d\n",
GDK_WINDOW_HWND (window), x, y));
}
if (gdk_window_get_device_events (window, GDK_DEVICE (device)) == 0)
return FALSE;
event->any.window = window;
key_state = get_modifier_key_state ();
if (event->any.type == GDK_BUTTON_PRESS ||
event->any.type == GDK_BUTTON_RELEASE)
{
event->button.time = _gdk_win32_get_next_tick (msg->time);
gdk_event_set_device (event, GDK_DEVICE (device));
event->button.axes = g_new (gdouble, num_axes);
_gdk_device_wintab_get_window_coords (window, &root_x, &root_y);
_gdk_device_wintab_translate_axes (device,
window,
event->button.axes,
&event->button.x,
&event->button.y);
event->button.x_root = event->button.x + root_x;
event->button.y_root = event->button.y + root_y;
event->button.state =
key_state | ((device->button_state << 8)
& (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
| GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
| GDK_BUTTON5_MASK));
GDK_NOTE (EVENTS_OR_INPUT,
g_print ("WINTAB button %s:%d %g,%g\n",
(event->button.type == GDK_BUTTON_PRESS ?
"press" : "release"),
event->button.button,
event->button.x, event->button.y));
}
else
{
event->motion.time = _gdk_win32_get_next_tick (msg->time);
event->motion.is_hint = FALSE;
gdk_event_set_device (event, GDK_DEVICE (device));
event->motion.axes = g_new (gdouble, num_axes);
_gdk_device_wintab_get_window_coords (window, &root_x, &root_y);
_gdk_device_wintab_translate_axes (device,
window,
event->motion.axes,
&event->motion.x,
&event->motion.y);
event->motion.x_root = event->motion.x + root_x;
event->motion.y_root = event->motion.y + root_y;
event->motion.state =
key_state | ((device->button_state << 8)
& (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
| GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
| GDK_BUTTON5_MASK));
GDK_NOTE (EVENTS_OR_INPUT,
g_print ("WINTAB motion: %g,%g\n",
event->motion.x, event->motion.y));
}
return TRUE;
case WT_PROXIMITY:
if (LOWORD (msg->lParam) == 0)
{
event->proximity.type = GDK_PROXIMITY_OUT;
set_ignore_core (FALSE);
}
else
{
event->proximity.type = GDK_PROXIMITY_IN;
set_ignore_core (TRUE);
}
event->proximity.time = _gdk_win32_get_next_tick (msg->time);
gdk_event_set_device (event, GDK_DEVICE (device));
GDK_NOTE (EVENTS_OR_INPUT,
g_print ("WINTAB proximity %s\n",
(event->proximity.type == GDK_PROXIMITY_IN ?
"in" : "out")));
return TRUE;
}
return FALSE;
}
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