# ---------------------------------------------------------------------------- # pyglet # Copyright (c) 2006-2008 Alex Holkner # Copyright (c) 2008-2023 pyglet contributors # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in # the documentation and/or other materials provided with the # distribution. # * Neither the name of pyglet nor the names of its # contributors may be used to endorse or promote products # derived from this software without specific prior written # permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE # COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # ---------------------------------------------------------------------------- import ctypes import pyglet from pyglet.input.base import DeviceOpenException from pyglet.input.base import Tablet, TabletCursor, TabletCanvas from pyglet.libs.win32 import libwintab as wintab lib = wintab.lib def wtinfo(category, index, buffer): size = lib.WTInfoW(category, index, None) assert size <= ctypes.sizeof(buffer) lib.WTInfoW(category, index, ctypes.byref(buffer)) return buffer def wtinfo_string(category, index): size = lib.WTInfoW(category, index, None) buffer = ctypes.create_unicode_buffer(size) lib.WTInfoW(category, index, buffer) return buffer.value def wtinfo_uint(category, index): buffer = wintab.UINT() lib.WTInfoW(category, index, ctypes.byref(buffer)) return buffer.value def wtinfo_word(category, index): buffer = wintab.WORD() lib.WTInfoW(category, index, ctypes.byref(buffer)) return buffer.value def wtinfo_dword(category, index): buffer = wintab.DWORD() lib.WTInfoW(category, index, ctypes.byref(buffer)) return buffer.value def wtinfo_wtpkt(category, index): buffer = wintab.WTPKT() lib.WTInfoW(category, index, ctypes.byref(buffer)) return buffer.value def wtinfo_bool(category, index): buffer = wintab.BOOL() lib.WTInfoW(category, index, ctypes.byref(buffer)) return bool(buffer.value) class WintabTablet(Tablet): def __init__(self, index): self._device = wintab.WTI_DEVICES + index self.name = wtinfo_string(self._device, wintab.DVC_NAME).strip() self.id = wtinfo_string(self._device, wintab.DVC_PNPID) hardware = wtinfo_uint(self._device, wintab.DVC_HARDWARE) # phys_cursors = hardware & wintab.HWC_PHYSID_CURSORS n_cursors = wtinfo_uint(self._device, wintab.DVC_NCSRTYPES) first_cursor = wtinfo_uint(self._device, wintab.DVC_FIRSTCSR) self.pressure_axis = wtinfo(self._device, wintab.DVC_NPRESSURE, wintab.AXIS()) self.cursors = [] self._cursor_map = {} for i in range(n_cursors): cursor = WintabTabletCursor(self, i + first_cursor) if not cursor.bogus: self.cursors.append(cursor) self._cursor_map[i + first_cursor] = cursor def open(self, window): return WintabTabletCanvas(self, window) class WintabTabletCanvas(TabletCanvas): def __init__(self, device, window, msg_base=wintab.WT_DEFBASE): super(WintabTabletCanvas, self).__init__(window) self.device = device self.msg_base = msg_base # Just use system context, for similarity w/ os x and xinput. # WTI_DEFCONTEXT detaches mouse from tablet, which is nice, but not # possible on os x afiak. self.context_info = context_info = wintab.LOGCONTEXT() wtinfo(wintab.WTI_DEFSYSCTX, 0, context_info) context_info.lcMsgBase = msg_base context_info.lcOptions |= wintab.CXO_MESSAGES # If you change this, change definition of PACKET also. context_info.lcPktData = ( wintab.PK_CHANGED | wintab.PK_CURSOR | wintab.PK_BUTTONS | wintab.PK_X | wintab.PK_Y | wintab.PK_Z | wintab.PK_NORMAL_PRESSURE | wintab.PK_TANGENT_PRESSURE | wintab.PK_ORIENTATION) context_info.lcPktMode = 0 # All absolute self._context = lib.WTOpenW(window._hwnd, ctypes.byref(context_info), True) if not self._context: raise DeviceOpenException("Couldn't open tablet context") window._event_handlers[msg_base + wintab.WT_PACKET] = self._event_wt_packet window._event_handlers[msg_base + wintab.WT_PROXIMITY] = self._event_wt_proximity self._current_cursor = None self._pressure_scale = device.pressure_axis.get_scale() self._pressure_bias = device.pressure_axis.get_bias() def close(self): lib.WTClose(self._context) self._context = None del self.window._event_handlers[self.msg_base + wintab.WT_PACKET] del self.window._event_handlers[self.msg_base + wintab.WT_PROXIMITY] def _set_current_cursor(self, cursor_type): if self._current_cursor: self.dispatch_event('on_leave', self._current_cursor) self._current_cursor = self.device._cursor_map.get(cursor_type, None) if self._current_cursor: self.dispatch_event('on_enter', self._current_cursor) @pyglet.window.win32.Win32EventHandler(0) def _event_wt_packet(self, msg, wParam, lParam): if lParam != self._context: return packet = wintab.PACKET() if lib.WTPacket(self._context, wParam, ctypes.byref(packet)) == 0: return if not packet.pkChanged: return window_x, window_y = self.window.get_location() # TODO cache on window window_y = self.window.screen.height - window_y - self.window.height x = packet.pkX - window_x y = packet.pkY - window_y pressure = (packet.pkNormalPressure + self._pressure_bias) * self._pressure_scale if self._current_cursor is None: self._set_current_cursor(packet.pkCursor) self.dispatch_event('on_motion', self._current_cursor, x, y, pressure, 0., 0.) print(packet.pkButtons) @pyglet.window.win32.Win32EventHandler(0) def _event_wt_proximity(self, msg, wParam, lParam): if wParam != self._context: return if not lParam & 0xffff0000: # Not a hardware proximity event return if not lParam & 0xffff: # Going out self.dispatch_event('on_leave', self._current_cursor) # If going in, proximity event will be generated by next event, which # can actually grab a cursor id. self._current_cursor = None class WintabTabletCursor: def __init__(self, device, index): self.device = device self._cursor = wintab.WTI_CURSORS + index self.name = wtinfo_string(self._cursor, wintab.CSR_NAME).strip() self.active = wtinfo_bool(self._cursor, wintab.CSR_ACTIVE) pktdata = wtinfo_wtpkt(self._cursor, wintab.CSR_PKTDATA) # A whole bunch of cursors are reported by the driver, but most of # them are hogwash. Make sure a cursor has at least X and Y data # before adding it to the device. self.bogus = not (pktdata & wintab.PK_X and pktdata & wintab.PK_Y) if self.bogus: return self.id = (wtinfo_dword(self._cursor, wintab.CSR_TYPE) << 32) | \ wtinfo_dword(self._cursor, wintab.CSR_PHYSID) def __repr__(self): return 'WintabCursor(%r)' % self.name def get_spec_version(): spec_version = wtinfo_word(wintab.WTI_INTERFACE, wintab.IFC_SPECVERSION) return spec_version def get_interface_name(): interface_name = wtinfo_string(wintab.WTI_INTERFACE, wintab.IFC_WINTABID) return interface_name def get_implementation_version(): impl_version = wtinfo_word(wintab.WTI_INTERFACE, wintab.IFC_IMPLVERSION) return impl_version def get_tablets(display=None): # Require spec version 1.1 or greater if get_spec_version() < 0x101: return [] n_devices = wtinfo_uint(wintab.WTI_INTERFACE, wintab.IFC_NDEVICES) devices = [WintabTablet(i) for i in range(n_devices)] return devices