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blender/intern/ghost/intern/GHOST_SystemX11.cpp
Campbell Barton 6ce0ddae96 GHOST/X11: Hotplug support for xinput 
Allows to plug/unplug different tablets while Blender is running.

Also fixes crash unplugging tablet while Blender runs (T48750).
2016-06-28 16:08:39 +10:00

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* Part of this code has been taken from Qt, under LGPL license
* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file ghost/intern/GHOST_SystemX11.cpp
* \ingroup GHOST
*/
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <X11/XKBlib.h> /* allow detectable autorepeate */
#include <X11/Xutil.h>
#include "GHOST_SystemX11.h"
#include "GHOST_WindowX11.h"
#include "GHOST_WindowManager.h"
#include "GHOST_TimerManager.h"
#include "GHOST_EventCursor.h"
#include "GHOST_EventKey.h"
#include "GHOST_EventButton.h"
#include "GHOST_EventWheel.h"
#include "GHOST_DisplayManagerX11.h"
#include "GHOST_EventDragnDrop.h"
#ifdef WITH_INPUT_NDOF
# include "GHOST_NDOFManagerUnix.h"
#endif
#ifdef WITH_XDND
# include "GHOST_DropTargetX11.h"
#endif
#include "GHOST_Debug.h"
#ifdef WITH_XF86KEYSYM
#include <X11/XF86keysym.h>
#endif
/* For timing */
#include <sys/time.h>
#include <unistd.h>
#include <iostream>
#include <vector>
#include <stdio.h> /* for fprintf only */
#include <cstdlib> /* for exit */
/* for debugging - so we can breakpoint X11 errors */
// #define USE_X11_ERROR_HANDLERS
#ifdef WITH_X11_XINPUT
# define USE_XINPUT_HOTPLUG
#endif
/* see [#34039] Fix Alt key glitch on Unity desktop */
#define USE_UNITY_WORKAROUND
/* Fix 'shortcut' part of keyboard reading code only ever using first defined keymap instead of active one.
* See T47228 and D1746 */
#define USE_NON_LATIN_KB_WORKAROUND
static GHOST_TKey convertXKey(KeySym key);
/* these are for copy and select copy */
static char *txt_cut_buffer = NULL;
static char *txt_select_buffer = NULL;
using namespace std;
GHOST_SystemX11::
GHOST_SystemX11(
)
: GHOST_System(),
m_start_time(0)
{
m_display = XOpenDisplay(NULL);
if (!m_display) {
std::cerr << "Unable to open a display" << std::endl;
abort(); /* was return before, but this would just mean it will crash later */
}
#ifdef USE_X11_ERROR_HANDLERS
(void) XSetErrorHandler(GHOST_X11_ApplicationErrorHandler);
(void) XSetIOErrorHandler(GHOST_X11_ApplicationIOErrorHandler);
#endif
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
/* note -- don't open connection to XIM server here, because the locale
* has to be set before opening the connection but setlocale() has not
* been called yet. the connection will be opened after entering
* the event loop. */
m_xim = NULL;
#endif
#define GHOST_INTERN_ATOM_IF_EXISTS(atom) { m_atom.atom = XInternAtom(m_display, #atom , True); } (void)0
#define GHOST_INTERN_ATOM(atom) { m_atom.atom = XInternAtom(m_display, #atom , False); } (void)0
GHOST_INTERN_ATOM_IF_EXISTS(WM_DELETE_WINDOW);
GHOST_INTERN_ATOM(WM_PROTOCOLS);
GHOST_INTERN_ATOM(WM_TAKE_FOCUS);
GHOST_INTERN_ATOM(WM_STATE);
GHOST_INTERN_ATOM(WM_CHANGE_STATE);
GHOST_INTERN_ATOM(_NET_WM_STATE);
GHOST_INTERN_ATOM(_NET_WM_STATE_MAXIMIZED_HORZ);
GHOST_INTERN_ATOM(_NET_WM_STATE_MAXIMIZED_VERT);
GHOST_INTERN_ATOM(_NET_WM_STATE_FULLSCREEN);
GHOST_INTERN_ATOM(_MOTIF_WM_HINTS);
GHOST_INTERN_ATOM(TARGETS);
GHOST_INTERN_ATOM(STRING);
GHOST_INTERN_ATOM(COMPOUND_TEXT);
GHOST_INTERN_ATOM(TEXT);
GHOST_INTERN_ATOM(CLIPBOARD);
GHOST_INTERN_ATOM(PRIMARY);
GHOST_INTERN_ATOM(XCLIP_OUT);
GHOST_INTERN_ATOM(INCR);
GHOST_INTERN_ATOM(UTF8_STRING);
#ifdef WITH_X11_XINPUT
m_atom.TABLET = XInternAtom(m_display, XI_TABLET, False);
#endif
#undef GHOST_INTERN_ATOM_IF_EXISTS
#undef GHOST_INTERN_ATOM
m_last_warp = 0;
m_last_release_keycode = 0;
m_last_release_time = 0;
/* compute the initial time */
timeval tv;
if (gettimeofday(&tv, NULL) == -1) {
GHOST_ASSERT(false, "Could not instantiate timer!");
}
/* Taking care not to overflow the tv.tv_sec * 1000 */
m_start_time = GHOST_TUns64(tv.tv_sec) * 1000 + tv.tv_usec / 1000;
/* use detectable autorepeate, mac and windows also do this */
int use_xkb;
int xkb_opcode, xkb_event, xkb_error;
int xkb_major = XkbMajorVersion, xkb_minor = XkbMinorVersion;
use_xkb = XkbQueryExtension(m_display, &xkb_opcode, &xkb_event, &xkb_error, &xkb_major, &xkb_minor);
if (use_xkb) {
XkbSetDetectableAutoRepeat(m_display, true, NULL);
}
#ifdef WITH_X11_XINPUT
/* detect if we have xinput (for reuse) */
{
memset(&m_xinput_version, 0, sizeof(m_xinput_version));
XExtensionVersion *version = XGetExtensionVersion(m_display, INAME);
if (version && (version != (XExtensionVersion *)NoSuchExtension)) {
if (version->present) {
m_xinput_version = *version;
}
XFree(version);
}
}
#ifdef USE_XINPUT_HOTPLUG
if (m_xinput_version.present) {
XEventClass class_presence;
int xi_presence;
DevicePresence(m_display, xi_presence, class_presence);
XSelectExtensionEvent(
m_display,
RootWindow(m_display, DefaultScreen(m_display)),
&class_presence, 1);
(void)xi_presence;
}
#endif /* USE_XINPUT_HOTPLUG */
/* initialize incase X11 fails to load */
memset(&m_xtablet, 0, sizeof(m_xtablet));
refreshXInputDevices();
#endif /* WITH_X11_XINPUT */
}
GHOST_SystemX11::
~GHOST_SystemX11()
{
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
if (m_xim) {
XCloseIM(m_xim);
}
#endif
#ifdef WITH_X11_XINPUT
/* close tablet devices */
if (m_xtablet.StylusDevice)
XCloseDevice(m_display, m_xtablet.StylusDevice);
if (m_xtablet.EraserDevice)
XCloseDevice(m_display, m_xtablet.EraserDevice);
#endif /* WITH_X11_XINPUT */
XCloseDisplay(m_display);
}
GHOST_TSuccess
GHOST_SystemX11::
init()
{
GHOST_TSuccess success = GHOST_System::init();
if (success) {
#ifdef WITH_INPUT_NDOF
m_ndofManager = new GHOST_NDOFManagerUnix(*this);
#endif
m_displayManager = new GHOST_DisplayManagerX11(this);
if (m_displayManager) {
return GHOST_kSuccess;
}
}
return GHOST_kFailure;
}
GHOST_TUns64
GHOST_SystemX11::
getMilliSeconds() const
{
timeval tv;
if (gettimeofday(&tv, NULL) == -1) {
GHOST_ASSERT(false, "Could not compute time!");
}
/* Taking care not to overflow the tv.tv_sec * 1000 */
return GHOST_TUns64(tv.tv_sec) * 1000 + tv.tv_usec / 1000 - m_start_time;
}
GHOST_TUns8
GHOST_SystemX11::
getNumDisplays() const
{
return GHOST_TUns8(1);
}
/**
* Returns the dimensions of the main display on this system.
* \return The dimension of the main display.
*/
void
GHOST_SystemX11::
getMainDisplayDimensions(
GHOST_TUns32& width,
GHOST_TUns32& height) const
{
if (m_display) {
/* note, for this to work as documented,
* we would need to use Xinerama check r54370 for code that did this,
* we've since removed since its not worth the extra dep - campbell */
getAllDisplayDimensions(width, height);
}
}
/**
* Returns the dimensions of the main display on this system.
* \return The dimension of the main display.
*/
void
GHOST_SystemX11::
getAllDisplayDimensions(
GHOST_TUns32& width,
GHOST_TUns32& height) const
{
if (m_display) {
width = DisplayWidth(m_display, DefaultScreen(m_display));
height = DisplayHeight(m_display, DefaultScreen(m_display));
}
}
/**
* Create a new window.
* The new window is added to the list of windows managed.
* Never explicitly delete the window, use disposeWindow() instead.
* \param title The name of the window (displayed in the title bar of the window if the OS supports it).
* \param left The coordinate of the left edge of the window.
* \param top The coordinate of the top edge of the window.
* \param width The width the window.
* \param height The height the window.
* \param state The state of the window when opened.
* \param type The type of drawing context installed in this window.
* \param glSettings: Misc OpenGL settings.
* \param exclusive: Use to show the window ontop and ignore others (used fullscreen).
* \param parentWindow Parent (embedder) window
* \return The new window (or 0 if creation failed).
*/
GHOST_IWindow *
GHOST_SystemX11::
createWindow(const STR_String& title,
GHOST_TInt32 left,
GHOST_TInt32 top,
GHOST_TUns32 width,
GHOST_TUns32 height,
GHOST_TWindowState state,
GHOST_TDrawingContextType type,
GHOST_GLSettings glSettings,
const bool exclusive,
const GHOST_TEmbedderWindowID parentWindow)
{
GHOST_WindowX11 *window = NULL;
if (!m_display) return 0;
window = new GHOST_WindowX11(this, m_display, title,
left, top, width, height,
state, parentWindow, type,
((glSettings.flags & GHOST_glStereoVisual) != 0), exclusive,
((glSettings.flags & GHOST_glAlphaBackground) != 0),
glSettings.numOfAASamples, (glSettings.flags & GHOST_glDebugContext) != 0);
if (window) {
/* Both are now handle in GHOST_WindowX11.cpp
* Focus and Delete atoms. */
if (window->getValid()) {
/* Store the pointer to the window */
m_windowManager->addWindow(window);
m_windowManager->setActiveWindow(window);
pushEvent(new GHOST_Event(getMilliSeconds(), GHOST_kEventWindowSize, window) );
}
else {
delete window;
window = NULL;
}
}
return window;
}
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
static void destroyIMCallback(XIM /*xim*/, XPointer ptr, XPointer /*data*/)
{
GHOST_PRINT("XIM server died\n");
if (ptr)
*(XIM *)ptr = NULL;
}
bool GHOST_SystemX11::openX11_IM()
{
if (!m_display)
return false;
/* set locale modifiers such as "@im=ibus" specified by XMODIFIERS */
XSetLocaleModifiers("");
m_xim = XOpenIM(m_display, NULL, (char *)GHOST_X11_RES_NAME, (char *)GHOST_X11_RES_CLASS);
if (!m_xim)
return false;
XIMCallback destroy;
destroy.callback = (XIMProc)destroyIMCallback;
destroy.client_data = (XPointer)&m_xim;
XSetIMValues(m_xim, XNDestroyCallback, &destroy, NULL);
return true;
}
#endif
GHOST_WindowX11 *
GHOST_SystemX11::
findGhostWindow(
Window xwind) const
{
if (xwind == 0) return NULL;
/* It is not entirely safe to do this as the backptr may point
* to a window that has recently been removed.
* We should always check the window manager's list of windows
* and only process events on these windows. */
vector<GHOST_IWindow *> & win_vec = m_windowManager->getWindows();
vector<GHOST_IWindow *>::iterator win_it = win_vec.begin();
vector<GHOST_IWindow *>::const_iterator win_end = win_vec.end();
for (; win_it != win_end; ++win_it) {
GHOST_WindowX11 *window = static_cast<GHOST_WindowX11 *>(*win_it);
if (window->getXWindow() == xwind) {
return window;
}
}
return NULL;
}
static void SleepTillEvent(Display *display, GHOST_TInt64 maxSleep)
{
int fd = ConnectionNumber(display);
fd_set fds;
FD_ZERO(&fds);
FD_SET(fd, &fds);
if (maxSleep == -1) {
select(fd + 1, &fds, NULL, NULL, NULL);
}
else {
timeval tv;
tv.tv_sec = maxSleep / 1000;
tv.tv_usec = (maxSleep - tv.tv_sec * 1000) * 1000;
select(fd + 1, &fds, NULL, NULL, &tv);
}
}
/* This function borrowed from Qt's X11 support
* qclipboard_x11.cpp
* */
struct init_timestamp_data {
Time timestamp;
};
static Bool init_timestamp_scanner(Display *, XEvent *event, XPointer arg)
{
init_timestamp_data *data =
reinterpret_cast<init_timestamp_data *>(arg);
switch (event->type) {
case ButtonPress:
case ButtonRelease:
data->timestamp = event->xbutton.time;
break;
case MotionNotify:
data->timestamp = event->xmotion.time;
break;
case KeyPress:
case KeyRelease:
data->timestamp = event->xkey.time;
break;
case PropertyNotify:
data->timestamp = event->xproperty.time;
break;
case EnterNotify:
case LeaveNotify:
data->timestamp = event->xcrossing.time;
break;
case SelectionClear:
data->timestamp = event->xselectionclear.time;
break;
default:
break;
}
return false;
}
Time
GHOST_SystemX11::
lastEventTime(Time default_time) {
init_timestamp_data data;
data.timestamp = default_time;
XEvent ev;
XCheckIfEvent(m_display, &ev, &init_timestamp_scanner, (XPointer) & data);
return data.timestamp;
}
bool
GHOST_SystemX11::
processEvents(
bool waitForEvent)
{
/* Get all the current events -- translate them into
* ghost events and call base class pushEvent() method. */
bool anyProcessed = false;
do {
GHOST_TimerManager *timerMgr = getTimerManager();
if (waitForEvent && m_dirty_windows.empty() && !XPending(m_display)) {
GHOST_TUns64 next = timerMgr->nextFireTime();
if (next == GHOST_kFireTimeNever) {
SleepTillEvent(m_display, -1);
}
else {
GHOST_TInt64 maxSleep = next - getMilliSeconds();
if (maxSleep >= 0)
SleepTillEvent(m_display, next - getMilliSeconds());
}
}
if (timerMgr->fireTimers(getMilliSeconds())) {
anyProcessed = true;
}
while (XPending(m_display)) {
XEvent xevent;
XNextEvent(m_display, &xevent);
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
/* open connection to XIM server and create input context (XIC)
* when receiving the first FocusIn or KeyPress event after startup,
* or recover XIM and XIC when the XIM server has been restarted */
if (xevent.type == FocusIn || xevent.type == KeyPress) {
if (!m_xim && openX11_IM()) {
GHOST_PRINT("Connected to XIM server\n");
}
if (m_xim) {
GHOST_WindowX11 * window = findGhostWindow(xevent.xany.window);
if (window && !window->getX11_XIC() && window->createX11_XIC()) {
GHOST_PRINT("XIM input context created\n");
if (xevent.type == KeyPress)
/* we can assume the window has input focus
* here, because key events are received only
* when the window is focused. */
XSetICFocus(window->getX11_XIC());
}
}
}
/* dispatch event to XIM server */
if ((XFilterEvent(&xevent, (Window)NULL) == True) && (xevent.type != KeyRelease)) {
/* do nothing now, the event is consumed by XIM.
* however, KeyRelease event should be processed
* here, otherwise modifiers remain activated. */
continue;
}
#endif
/* when using autorepeat, some keypress events can actually come *after* the
* last keyrelease. The next code takes care of that */
if (xevent.type == KeyRelease) {
m_last_release_keycode = xevent.xkey.keycode;
m_last_release_time = xevent.xkey.time;
}
else if (xevent.type == KeyPress) {
if ((xevent.xkey.keycode == m_last_release_keycode) && ((xevent.xkey.time <= m_last_release_time)))
continue;
}
processEvent(&xevent);
anyProcessed = true;
#ifdef USE_UNITY_WORKAROUND
/* note: processEvent() can't include this code because
* KeymapNotify event have no valid window information. */
/* the X server generates KeymapNotify event immediately after
* every EnterNotify and FocusIn event. we handle this event
* to correct modifier states. */
if (xevent.type == FocusIn) {
/* use previous event's window, because KeymapNotify event
* has no window information. */
GHOST_WindowX11 *window = findGhostWindow(xevent.xany.window);
if (window && XPending(m_display) >= 2) {
XNextEvent(m_display, &xevent);
if (xevent.type == KeymapNotify) {
XEvent xev_next;
/* check if KeyPress or KeyRelease event was generated
* in order to confirm the window is active. */
XPeekEvent(m_display, &xev_next);
if (xev_next.type == KeyPress || xev_next.type == KeyRelease) {
/* XK_Hyper_L/R currently unused */
const static KeySym modifiers[8] = {XK_Shift_L, XK_Shift_R,
XK_Control_L, XK_Control_R,
XK_Alt_L, XK_Alt_R,
XK_Super_L, XK_Super_R};
for (int i = 0; i < (sizeof(modifiers) / sizeof(*modifiers)); i++) {
KeyCode kc = XKeysymToKeycode(m_display, modifiers[i]);
if (((xevent.xkeymap.key_vector[kc >> 3] >> (kc & 7)) & 1) != 0) {
pushEvent(new GHOST_EventKey(
getMilliSeconds(),
GHOST_kEventKeyDown,
window,
convertXKey(modifiers[i]),
'\0',
NULL));
}
}
}
}
}
}
#endif /* USE_UNITY_WORKAROUND */
}
if (generateWindowExposeEvents()) {
anyProcessed = true;
}
#ifdef WITH_INPUT_NDOF
if (static_cast<GHOST_NDOFManagerUnix *>(m_ndofManager)->processEvents()) {
anyProcessed = true;
}
#endif
} while (waitForEvent && !anyProcessed);
return anyProcessed;
}
#ifdef WITH_X11_XINPUT
/* set currently using tablet mode (stylus or eraser) depending on device ID */
static void setTabletMode(GHOST_SystemX11 *system, GHOST_WindowX11 *window, XID deviceid)
{
if (deviceid == system->GetXTablet().StylusID)
window->GetTabletData()->Active = GHOST_kTabletModeStylus;
else if (deviceid == system->GetXTablet().EraserID)
window->GetTabletData()->Active = GHOST_kTabletModeEraser;
}
#endif /* WITH_X11_XINPUT */
#ifdef WITH_X11_XINPUT
static bool checkTabletProximity(Display *display, XDevice *device)
{
/* we could have true/false/not-found return value, but for now false is OK */
/* see: state.c from xinput, to get more data out of the device */
XDeviceState *state;
if (device == NULL) {
return false;
}
/* needed since unplugging will abort() without this */
GHOST_X11_ERROR_HANDLERS_OVERRIDE(handler_store);
state = XQueryDeviceState(display, device);
GHOST_X11_ERROR_HANDLERS_RESTORE(handler_store);
if (state) {
XInputClass *cls = state->data;
// printf("%d class%s :\n", state->num_classes,
// (state->num_classes > 1) ? "es" : "");
for (int loop = 0; loop < state->num_classes; loop++) {
switch (cls->c_class) {
case ValuatorClass:
XValuatorState *val_state = (XValuatorState *)cls;
// printf("ValuatorClass Mode=%s Proximity=%s\n",
// val_state->mode & 1 ? "Absolute" : "Relative",
// val_state->mode & 2 ? "Out" : "In");
if ((val_state->mode & 2) == 0) {
XFreeDeviceState(state);
return true;
}
break;
}
cls = (XInputClass *) ((char *)cls + cls->length);
}
XFreeDeviceState(state);
}
return false;
}
#endif /* WITH_X11_XINPUT */
void
GHOST_SystemX11::processEvent(XEvent *xe)
{
GHOST_WindowX11 *window = findGhostWindow(xe->xany.window);
GHOST_Event *g_event = NULL;
#ifdef USE_XINPUT_HOTPLUG
/* Hot-Plug support */
if (m_xinput_version.present) {
XEventClass class_presence;
int xi_presence;
DevicePresence(m_display, xi_presence, class_presence);
(void)class_presence;
if (xe->type == xi_presence) {
XDevicePresenceNotifyEvent *notify_event = (XDevicePresenceNotifyEvent *)xe;
if ((notify_event->devchange == DeviceEnabled) ||
(notify_event->devchange == DeviceDisabled) ||
(notify_event->devchange == DeviceAdded) ||
(notify_event->devchange == DeviceRemoved))
{
refreshXInputDevices();
/* update all window events */
{
vector<GHOST_IWindow *> & win_vec = m_windowManager->getWindows();
vector<GHOST_IWindow *>::iterator win_it = win_vec.begin();
vector<GHOST_IWindow *>::const_iterator win_end = win_vec.end();
for (; win_it != win_end; ++win_it) {
GHOST_WindowX11 *window = static_cast<GHOST_WindowX11 *>(*win_it);
window->refreshXInputDevices();
}
}
}
}
}
#endif /* USE_XINPUT_HOTPLUG */
if (!window) {
return;
}
#ifdef WITH_X11_XINPUT
/* Proximity-Out Events are not reliable, if the tablet is active - check on each event
* this adds a little overhead but only while the tablet is in use.
* in the future we could have a ghost call window->CheckTabletProximity()
* but for now enough parts of the code are checking 'Active'
* - campbell */
if (window->GetTabletData()->Active != GHOST_kTabletModeNone) {
if (checkTabletProximity(xe->xany.display, m_xtablet.StylusDevice) == false &&
checkTabletProximity(xe->xany.display, m_xtablet.EraserDevice) == false)
{
// printf("proximity disable\n");
window->GetTabletData()->Active = GHOST_kTabletModeNone;
}
}
#endif /* WITH_X11_XINPUT */
switch (xe->type) {
case Expose:
{
XExposeEvent & xee = xe->xexpose;
if (xee.count == 0) {
/* Only generate a single expose event
* per read of the event queue. */
g_event = new
GHOST_Event(
getMilliSeconds(),
GHOST_kEventWindowUpdate,
window
);
}
break;
}
case MotionNotify:
{
XMotionEvent &xme = xe->xmotion;
#ifdef WITH_X11_XINPUT
bool is_tablet = window->GetTabletData()->Active != GHOST_kTabletModeNone;
#else
bool is_tablet = false;
#endif
if (is_tablet == false && window->getCursorGrabModeIsWarp()) {
GHOST_TInt32 x_new = xme.x_root;
GHOST_TInt32 y_new = xme.y_root;
GHOST_TInt32 x_accum, y_accum;
GHOST_Rect bounds;
/* fallback to window bounds */
if (window->getCursorGrabBounds(bounds) == GHOST_kFailure)
window->getClientBounds(bounds);
/* could also clamp to screen bounds
* wrap with a window outside the view will fail atm */
bounds.wrapPoint(x_new, y_new, 8); /* offset of one incase blender is at screen bounds */
window->getCursorGrabAccum(x_accum, y_accum);
if (x_new != xme.x_root || y_new != xme.y_root) {
if (xme.time > m_last_warp) {
/* when wrapping we don't need to add an event because the
* setCursorPosition call will cause a new event after */
setCursorPosition(x_new, y_new); /* wrap */
window->setCursorGrabAccum(x_accum + (xme.x_root - x_new), y_accum + (xme.y_root - y_new));
m_last_warp = lastEventTime(xme.time);
}
else {
setCursorPosition(x_new, y_new); /* wrap but don't accumulate */
}
}
else {
g_event = new
GHOST_EventCursor(
getMilliSeconds(),
GHOST_kEventCursorMove,
window,
xme.x_root + x_accum,
xme.y_root + y_accum
);
}
}
else {
g_event = new
GHOST_EventCursor(
getMilliSeconds(),
GHOST_kEventCursorMove,
window,
xme.x_root,
xme.y_root
);
}
break;
}
case KeyPress:
case KeyRelease:
{
XKeyEvent *xke = &(xe->xkey);
KeySym key_sym;
KeySym key_sym_str;
char ascii;
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
/* utf8_array[] is initial buffer used for Xutf8LookupString().
* if the length of the utf8 string exceeds this array, allocate
* another memory area and call Xutf8LookupString() again.
* the last 5 bytes are used to avoid segfault that might happen
* at the end of this buffer when the constructor of GHOST_EventKey
* reads 6 bytes regardless of the effective data length. */
char utf8_array[16 * 6 + 5]; /* 16 utf8 characters */
char *utf8_buf = utf8_array;
int len = 1; /* at least one null character will be stored */
#else
char *utf8_buf = NULL;
#endif
GHOST_TEventType type = (xke->type == KeyPress) ? GHOST_kEventKeyDown : GHOST_kEventKeyUp;
GHOST_TKey gkey;
#ifdef USE_NON_LATIN_KB_WORKAROUND
/* XXX Code below is kinda awfully convoluted... Issues are:
*
* - In keyboards like latin ones, numbers need a 'Shift' to be accessed but key_sym
* is unmodified (or anyone swapping the keys with xmodmap).
*
* - XLookupKeysym seems to always use first defined keymap (see T47228), which generates
* keycodes unusable by convertXKey for non-latin-compatible keymaps.
*
* To address this, we:
*
* - Try to get a 'number' key_sym using XLookupKeysym (with or without shift modifier).
* - Fallback to XLookupString to get a key_sym from active user-defined keymap.
*
* Note that this enforces users to use an ascii-compatible keymap with Blender - but at least it gives
* predictable and consistent results.
*
* Also, note that nothing in XLib sources [1] makes it obvious why those two functions give different
* key_sym results...
*
* [1] http://cgit.freedesktop.org/xorg/lib/libX11/tree/src/KeyBind.c
*/
if ((xke->keycode >= 10 && xke->keycode < 20)) {
key_sym = XLookupKeysym(xke, ShiftMask);
if (!((key_sym >= XK_0) && (key_sym <= XK_9))) {
key_sym = XLookupKeysym(xke, 0);
}
}
else {
key_sym = XLookupKeysym(xke, 0);
}
if (!XLookupString(xke, &ascii, 1, &key_sym_str, NULL)) {
ascii = '\0';
}
if ((gkey = convertXKey(key_sym)) == GHOST_kKeyUnknown) {
gkey = convertXKey(key_sym_str);
}
#else
/* In keyboards like latin ones,
* numbers needs a 'Shift' to be accessed but key_sym
* is unmodified (or anyone swapping the keys with xmodmap).
*
* Here we look at the 'Shifted' version of the key.
* If it is a number, then we take it instead of the normal key.
*
* The modified key is sent in the 'ascii's variable anyway.
*/
if ((xke->keycode >= 10 && xke->keycode < 20) &&
((key_sym = XLookupKeysym(xke, ShiftMask)) >= XK_0) && (key_sym <= XK_9))
{
/* pass (keep shift'ed key_sym) */
}
else {
/* regular case */
key_sym = XLookupKeysym(xke, 0);
}
gkey = convertXKey(key_sym);
if (!XLookupString(xke, &ascii, 1, NULL, NULL)) {
ascii = '\0';
}
#endif
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
/* getting unicode on key-up events gives XLookupNone status */
XIC xic = window->getX11_XIC();
if (xic && xke->type == KeyPress) {
Status status;
/* use utf8 because its not locale depentant, from xorg docs */
if (!(len = Xutf8LookupString(xic, xke, utf8_buf, sizeof(utf8_array) - 5, &key_sym, &status))) {
utf8_buf[0] = '\0';
}
if (status == XBufferOverflow) {
utf8_buf = (char *) malloc(len + 5);
len = Xutf8LookupString(xic, xke, utf8_buf, len, &key_sym, &status);
}
if ((status == XLookupChars || status == XLookupBoth)) {
if ((unsigned char)utf8_buf[0] >= 32) { /* not an ascii control character */
/* do nothing for now, this is valid utf8 */
}
else {
utf8_buf[0] = '\0';
}
}
else if (status == XLookupKeySym) {
/* this key doesn't have a text representation, it is a command
* key of some sort */;
}
else {
printf("Bad keycode lookup. Keysym 0x%x Status: %s\n",
(unsigned int) key_sym,
(status == XLookupNone ? "XLookupNone" :
status == XLookupKeySym ? "XLookupKeySym" :
"Unknown status"));
printf("'%.*s' %p %p\n", len, utf8_buf, xic, m_xim);
}
}
else {
utf8_buf[0] = '\0';
}
#endif
g_event = new
GHOST_EventKey(
getMilliSeconds(),
type,
window,
gkey,
ascii,
utf8_buf
);
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
/* when using IM for some languages such as Japanese,
* one event inserts multiple utf8 characters */
if (xic && xke->type == KeyPress) {
unsigned char c;
int i = 0;
while (1) {
/* search character boundary */
if ((unsigned char)utf8_buf[i++] > 0x7f) {
for (; i < len; ++i) {
c = utf8_buf[i];
if (c < 0x80 || c > 0xbf) break;
}
}
if (i >= len) break;
/* enqueue previous character */
pushEvent(g_event);
g_event = new
GHOST_EventKey(
getMilliSeconds(),
type,
window,
gkey,
'\0',
&utf8_buf[i]
);
}
}
if (utf8_buf != utf8_array)
free(utf8_buf);
#endif
break;
}
case ButtonPress:
case ButtonRelease:
{
XButtonEvent & xbe = xe->xbutton;
GHOST_TButtonMask gbmask = GHOST_kButtonMaskLeft;
GHOST_TEventType type = (xbe.type == ButtonPress) ?
GHOST_kEventButtonDown : GHOST_kEventButtonUp;
/* process wheel mouse events and break, only pass on press events */
if (xbe.button == Button4) {
if (xbe.type == ButtonPress)
g_event = new GHOST_EventWheel(getMilliSeconds(), window, 1);
break;
}
else if (xbe.button == Button5) {
if (xbe.type == ButtonPress)
g_event = new GHOST_EventWheel(getMilliSeconds(), window, -1);
break;
}
/* process rest of normal mouse buttons */
if (xbe.button == Button1)
gbmask = GHOST_kButtonMaskLeft;
else if (xbe.button == Button2)
gbmask = GHOST_kButtonMaskMiddle;
else if (xbe.button == Button3)
gbmask = GHOST_kButtonMaskRight;
/* It seems events 6 and 7 are for horizontal scrolling.
* you can re-order button mapping like this... (swaps 6,7 with 8,9)
* xmodmap -e "pointer = 1 2 3 4 5 8 9 6 7"
*/
else if (xbe.button == 6)
gbmask = GHOST_kButtonMaskButton6;
else if (xbe.button == 7)
gbmask = GHOST_kButtonMaskButton7;
else if (xbe.button == 8)
gbmask = GHOST_kButtonMaskButton4;
else if (xbe.button == 9)
gbmask = GHOST_kButtonMaskButton5;
else
break;
g_event = new
GHOST_EventButton(
getMilliSeconds(),
type,
window,
gbmask
);
break;
}
/* change of size, border, layer etc. */
case ConfigureNotify:
{
/* XConfigureEvent & xce = xe->xconfigure; */
g_event = new
GHOST_Event(
getMilliSeconds(),
GHOST_kEventWindowSize,
window
);
break;
}
case FocusIn:
case FocusOut:
{
XFocusChangeEvent &xfe = xe->xfocus;
/* TODO: make sure this is the correct place for activate/deactivate */
// printf("X: focus %s for window %d\n", xfe.type == FocusIn ? "in" : "out", (int) xfe.window);
/* May have to look at the type of event and filter some out. */
GHOST_TEventType gtype = (xfe.type == FocusIn) ?
GHOST_kEventWindowActivate : GHOST_kEventWindowDeactivate;
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
XIC xic = window->getX11_XIC();
if (xic) {
if (xe->type == FocusIn)
XSetICFocus(xic);
else
XUnsetICFocus(xic);
}
#endif
g_event = new
GHOST_Event(
getMilliSeconds(),
gtype,
window
);
break;
}
case ClientMessage:
{
XClientMessageEvent & xcme = xe->xclient;
if (((Atom)xcme.data.l[0]) == m_atom.WM_DELETE_WINDOW) {
g_event = new
GHOST_Event(
getMilliSeconds(),
GHOST_kEventWindowClose,
window
);
}
else if (((Atom)xcme.data.l[0]) == m_atom.WM_TAKE_FOCUS) {
XWindowAttributes attr;
Window fwin;
int revert_to;
/* as ICCCM say, we need reply this event
* with a SetInputFocus, the data[1] have
* the valid timestamp (send by the wm).
*
* Some WM send this event before the
* window is really mapped (for example
* change from virtual desktop), so we need
* to be sure that our windows is mapped
* or this call fail and close blender.
*/
if (XGetWindowAttributes(m_display, xcme.window, &attr) == True) {
if (XGetInputFocus(m_display, &fwin, &revert_to) == True) {
if (attr.map_state == IsViewable) {
if (fwin != xcme.window)
XSetInputFocus(m_display, xcme.window, RevertToParent, xcme.data.l[1]);
}
}
}
}
else {
#ifdef WITH_XDND
/* try to handle drag event (if there's no such events, GHOST_HandleClientMessage will return zero) */
if (window->getDropTarget()->GHOST_HandleClientMessage(xe) == false) {
/* Unknown client message, ignore */
}
#else
/* Unknown client message, ignore */
#endif
}
break;
}
case DestroyNotify:
::exit(-1);
/* We're not interested in the following things.(yet...) */
case NoExpose:
case GraphicsExpose:
break;
case EnterNotify:
case LeaveNotify:
{
/* XCrossingEvents pointer leave enter window.
* also do cursor move here, MotionNotify only
* happens when motion starts & ends inside window.
* we only do moves when the crossing mode is 'normal'
* (really crossing between windows) since some windowmanagers
* also send grab/ungrab crossings for mousewheel events.
*/
XCrossingEvent &xce = xe->xcrossing;
if (xce.mode == NotifyNormal) {
g_event = new
GHOST_EventCursor(
getMilliSeconds(),
GHOST_kEventCursorMove,
window,
xce.x_root,
xce.y_root
);
}
// printf("X: %s window %d\n", xce.type == EnterNotify ? "entering" : "leaving", (int) xce.window);
if (xce.type == EnterNotify)
m_windowManager->setActiveWindow(window);
else
m_windowManager->setWindowInactive(window);
break;
}
case MapNotify:
/*
* From ICCCM:
* [ Clients can select for StructureNotify on their
* top-level windows to track transition between
* Normal and Iconic states. Receipt of a MapNotify
* event will indicate a transition to the Normal
* state, and receipt of an UnmapNotify event will
* indicate a transition to the Iconic state. ]
*/
if (window->m_post_init == True) {
/*
* Now we are sure that the window is
* mapped, so only need change the state.
*/
window->setState(window->m_post_state);
window->m_post_init = False;
}
break;
case UnmapNotify:
break;
case MappingNotify:
case ReparentNotify:
break;
case SelectionRequest:
{
XEvent nxe;
Atom target, utf8_string, string, compound_text, c_string;
XSelectionRequestEvent *xse = &xe->xselectionrequest;
target = XInternAtom(m_display, "TARGETS", False);
utf8_string = XInternAtom(m_display, "UTF8_STRING", False);
string = XInternAtom(m_display, "STRING", False);
compound_text = XInternAtom(m_display, "COMPOUND_TEXT", False);
c_string = XInternAtom(m_display, "C_STRING", False);
/* support obsolete clients */
if (xse->property == None) {
xse->property = xse->target;
}
nxe.xselection.type = SelectionNotify;
nxe.xselection.requestor = xse->requestor;
nxe.xselection.property = xse->property;
nxe.xselection.display = xse->display;
nxe.xselection.selection = xse->selection;
nxe.xselection.target = xse->target;
nxe.xselection.time = xse->time;
/* Check to see if the requestor is asking for String */
if (xse->target == utf8_string ||
xse->target == string ||
xse->target == compound_text ||
xse->target == c_string)
{
if (xse->selection == XInternAtom(m_display, "PRIMARY", False)) {
XChangeProperty(m_display, xse->requestor, xse->property, xse->target, 8, PropModeReplace,
(unsigned char *)txt_select_buffer, strlen(txt_select_buffer));
}
else if (xse->selection == XInternAtom(m_display, "CLIPBOARD", False)) {
XChangeProperty(m_display, xse->requestor, xse->property, xse->target, 8, PropModeReplace,
(unsigned char *)txt_cut_buffer, strlen(txt_cut_buffer));
}
}
else if (xse->target == target) {
Atom alist[5];
alist[0] = target;
alist[1] = utf8_string;
alist[2] = string;
alist[3] = compound_text;
alist[4] = c_string;
XChangeProperty(m_display, xse->requestor, xse->property, xse->target, 32, PropModeReplace,
(unsigned char *)alist, 5);
XFlush(m_display);
}
else {
/* Change property to None because we do not support anything but STRING */
nxe.xselection.property = None;
}
/* Send the event to the client 0 0 == False, SelectionNotify */
XSendEvent(m_display, xse->requestor, 0, 0, &nxe);
XFlush(m_display);
break;
}
default:
{
#ifdef WITH_X11_XINPUT
if (xe->type == m_xtablet.MotionEvent ||
xe->type == m_xtablet.MotionEventEraser ||
xe->type == m_xtablet.PressEvent ||
xe->type == m_xtablet.PressEventEraser)
{
XDeviceMotionEvent *data = (XDeviceMotionEvent *)xe;
const unsigned char axis_first = data->first_axis;
const unsigned char axes_end = axis_first + data->axes_count; /* after the last */
int axis_value;
/* stroke might begin without leading ProxyIn event,
* this happens when window is opened when stylus is already hovering
* around tablet surface */
setTabletMode(this, window, data->deviceid);
/* Note: This event might be generated with incomplete dataset (don't exactly know why, looks like in
* some cases, if the value does not change, it is not included in subsequent XDeviceMotionEvent
* events). So we have to check which values this event actually contains!
*/
#define AXIS_VALUE_GET(axis, val) \
((axis_first <= axis && axes_end > axis) && ((void)(val = data->axis_data[axis - axis_first]), true))
if (AXIS_VALUE_GET(2, axis_value)) {
window->GetTabletData()->Pressure = axis_value / ((float)m_xtablet.PressureLevels);
}
/* the (short) cast and the & 0xffff is bizarre and unexplained anywhere,
* but I got garbage data without it. Found it in the xidump.c source --matt
*
* The '& 0xffff' just truncates the value to its two lowest bytes, this probably means
* some drivers do not properly set the whole int value? Since we convert to float afterward,
* I don't think we need to cast to short here, but do not have a device to check this. --mont29
*/
if (AXIS_VALUE_GET(3, axis_value)) {
window->GetTabletData()->Xtilt = (short)(axis_value & 0xffff) /
((float)m_xtablet.XtiltLevels);
}
if (AXIS_VALUE_GET(4, axis_value)) {
window->GetTabletData()->Ytilt = (short)(axis_value & 0xffff) /
((float)m_xtablet.YtiltLevels);
}
#undef AXIS_VALUE_GET
}
else if (xe->type == m_xtablet.ProxInEvent) {
XProximityNotifyEvent *data = (XProximityNotifyEvent *)xe;
setTabletMode(this, window, data->deviceid);
}
else if (xe->type == m_xtablet.ProxOutEvent) {
window->GetTabletData()->Active = GHOST_kTabletModeNone;
}
#endif // WITH_X11_XINPUT
break;
}
}
if (g_event) {
pushEvent(g_event);
}
}
GHOST_TSuccess
GHOST_SystemX11::
getModifierKeys(
GHOST_ModifierKeys& keys) const
{
/* analyse the masks retuned from XQueryPointer. */
memset((void *)m_keyboard_vector, 0, sizeof(m_keyboard_vector));
XQueryKeymap(m_display, (char *)m_keyboard_vector);
/* now translate key symbols into keycodes and
* test with vector. */
const static KeyCode shift_l = XKeysymToKeycode(m_display, XK_Shift_L);
const static KeyCode shift_r = XKeysymToKeycode(m_display, XK_Shift_R);
const static KeyCode control_l = XKeysymToKeycode(m_display, XK_Control_L);
const static KeyCode control_r = XKeysymToKeycode(m_display, XK_Control_R);
const static KeyCode alt_l = XKeysymToKeycode(m_display, XK_Alt_L);
const static KeyCode alt_r = XKeysymToKeycode(m_display, XK_Alt_R);
const static KeyCode super_l = XKeysymToKeycode(m_display, XK_Super_L);
const static KeyCode super_r = XKeysymToKeycode(m_display, XK_Super_R);
/* shift */
keys.set(GHOST_kModifierKeyLeftShift, ((m_keyboard_vector[shift_l >> 3] >> (shift_l & 7)) & 1) != 0);
keys.set(GHOST_kModifierKeyRightShift, ((m_keyboard_vector[shift_r >> 3] >> (shift_r & 7)) & 1) != 0);
/* control */
keys.set(GHOST_kModifierKeyLeftControl, ((m_keyboard_vector[control_l >> 3] >> (control_l & 7)) & 1) != 0);
keys.set(GHOST_kModifierKeyRightControl, ((m_keyboard_vector[control_r >> 3] >> (control_r & 7)) & 1) != 0);
/* alt */
keys.set(GHOST_kModifierKeyLeftAlt, ((m_keyboard_vector[alt_l >> 3] >> (alt_l & 7)) & 1) != 0);
keys.set(GHOST_kModifierKeyRightAlt, ((m_keyboard_vector[alt_r >> 3] >> (alt_r & 7)) & 1) != 0);
/* super (windows) - only one GHOST-kModifierKeyOS, so mapping to either */
keys.set(GHOST_kModifierKeyOS, ( ((m_keyboard_vector[super_l >> 3] >> (super_l & 7)) & 1) ||
((m_keyboard_vector[super_r >> 3] >> (super_r & 7)) & 1) ) != 0);
return GHOST_kSuccess;
}
GHOST_TSuccess
GHOST_SystemX11::
getButtons(
GHOST_Buttons& buttons) const
{
Window root_return, child_return;
int rx, ry, wx, wy;
unsigned int mask_return;
if (XQueryPointer(m_display,
RootWindow(m_display, DefaultScreen(m_display)),
&root_return,
&child_return,
&rx, &ry,
&wx, &wy,
&mask_return) == True)
{
buttons.set(GHOST_kButtonMaskLeft, (mask_return & Button1Mask) != 0);
buttons.set(GHOST_kButtonMaskMiddle, (mask_return & Button2Mask) != 0);
buttons.set(GHOST_kButtonMaskRight, (mask_return & Button3Mask) != 0);
}
else {
return GHOST_kFailure;
}
return GHOST_kSuccess;
}
GHOST_TSuccess
GHOST_SystemX11::
getCursorPosition(
GHOST_TInt32& x,
GHOST_TInt32& y) const
{
Window root_return, child_return;
int rx, ry, wx, wy;
unsigned int mask_return;
if (XQueryPointer(
m_display,
RootWindow(m_display, DefaultScreen(m_display)),
&root_return,
&child_return,
&rx, &ry,
&wx, &wy,
&mask_return
) == False) {
return GHOST_kFailure;
}
else {
x = rx;
y = ry;
}
return GHOST_kSuccess;
}
GHOST_TSuccess
GHOST_SystemX11::
setCursorPosition(
GHOST_TInt32 x,
GHOST_TInt32 y)
{
/* This is a brute force move in screen coordinates
* XWarpPointer does relative moves so first determine the
* current pointer position. */
int cx, cy;
if (getCursorPosition(cx, cy) == GHOST_kFailure) {
return GHOST_kFailure;
}
int relx = x - cx;
int rely = y - cy;
XWarpPointer(m_display, None, None, 0, 0, 0, 0, relx, rely);
XSync(m_display, 0); /* Sync to process all requests */
return GHOST_kSuccess;
}
void
GHOST_SystemX11::
addDirtyWindow(
GHOST_WindowX11 *bad_wind)
{
GHOST_ASSERT((bad_wind != NULL), "addDirtyWindow() NULL ptr trapped (window)");
m_dirty_windows.push_back(bad_wind);
}
bool
GHOST_SystemX11::
generateWindowExposeEvents()
{
vector<GHOST_WindowX11 *>::iterator w_start = m_dirty_windows.begin();
vector<GHOST_WindowX11 *>::const_iterator w_end = m_dirty_windows.end();
bool anyProcessed = false;
for (; w_start != w_end; ++w_start) {
GHOST_Event *g_event = new
GHOST_Event(
getMilliSeconds(),
GHOST_kEventWindowUpdate,
*w_start
);
(*w_start)->validate();
if (g_event) {
pushEvent(g_event);
anyProcessed = true;
}
}
m_dirty_windows.clear();
return anyProcessed;
}
#define GXMAP(k, x, y) case x: k = y; break
static GHOST_TKey
convertXKey(KeySym key)
{
GHOST_TKey type;
if ((key >= XK_A) && (key <= XK_Z)) {
type = GHOST_TKey(key - XK_A + int(GHOST_kKeyA));
}
else if ((key >= XK_a) && (key <= XK_z)) {
type = GHOST_TKey(key - XK_a + int(GHOST_kKeyA));
}
else if ((key >= XK_0) && (key <= XK_9)) {
type = GHOST_TKey(key - XK_0 + int(GHOST_kKey0));
}
else if ((key >= XK_F1) && (key <= XK_F24)) {
type = GHOST_TKey(key - XK_F1 + int(GHOST_kKeyF1));
#if defined(__sun) || defined(__sun__)
/* This is a bit of a hack, but it looks like sun
* Used F11 and friends for its special keys Stop,again etc..
* So this little patch enables F11 and F12 to work as expected
* following link has documentation on it:
* http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4734408
* also from /usr/include/X11/Sunkeysym.h
* #define SunXK_F36 0x1005FF10 // Labeled F11
* #define SunXK_F37 0x1005FF11 // Labeled F12
*
* mein@cs.umn.edu
*/
}
else if (key == 268828432) {
type = GHOST_kKeyF11;
}
else if (key == 268828433) {
type = GHOST_kKeyF12;
#endif
}
else {
switch (key) {
GXMAP(type, XK_BackSpace, GHOST_kKeyBackSpace);
GXMAP(type, XK_Tab, GHOST_kKeyTab);
GXMAP(type, XK_Return, GHOST_kKeyEnter);
GXMAP(type, XK_Escape, GHOST_kKeyEsc);
GXMAP(type, XK_space, GHOST_kKeySpace);
GXMAP(type, XK_Linefeed, GHOST_kKeyLinefeed);
GXMAP(type, XK_semicolon, GHOST_kKeySemicolon);
GXMAP(type, XK_period, GHOST_kKeyPeriod);
GXMAP(type, XK_comma, GHOST_kKeyComma);
GXMAP(type, XK_quoteright, GHOST_kKeyQuote);
GXMAP(type, XK_quoteleft, GHOST_kKeyAccentGrave);
GXMAP(type, XK_minus, GHOST_kKeyMinus);
GXMAP(type, XK_plus, GHOST_kKeyPlus);
GXMAP(type, XK_slash, GHOST_kKeySlash);
GXMAP(type, XK_backslash, GHOST_kKeyBackslash);
GXMAP(type, XK_equal, GHOST_kKeyEqual);
GXMAP(type, XK_bracketleft, GHOST_kKeyLeftBracket);
GXMAP(type, XK_bracketright, GHOST_kKeyRightBracket);
GXMAP(type, XK_Pause, GHOST_kKeyPause);
GXMAP(type, XK_Shift_L, GHOST_kKeyLeftShift);
GXMAP(type, XK_Shift_R, GHOST_kKeyRightShift);
GXMAP(type, XK_Control_L, GHOST_kKeyLeftControl);
GXMAP(type, XK_Control_R, GHOST_kKeyRightControl);
GXMAP(type, XK_Alt_L, GHOST_kKeyLeftAlt);
GXMAP(type, XK_Alt_R, GHOST_kKeyRightAlt);
GXMAP(type, XK_Super_L, GHOST_kKeyOS);
GXMAP(type, XK_Super_R, GHOST_kKeyOS);
GXMAP(type, XK_Insert, GHOST_kKeyInsert);
GXMAP(type, XK_Delete, GHOST_kKeyDelete);
GXMAP(type, XK_Home, GHOST_kKeyHome);
GXMAP(type, XK_End, GHOST_kKeyEnd);
GXMAP(type, XK_Page_Up, GHOST_kKeyUpPage);
GXMAP(type, XK_Page_Down, GHOST_kKeyDownPage);
GXMAP(type, XK_Left, GHOST_kKeyLeftArrow);
GXMAP(type, XK_Right, GHOST_kKeyRightArrow);
GXMAP(type, XK_Up, GHOST_kKeyUpArrow);
GXMAP(type, XK_Down, GHOST_kKeyDownArrow);
GXMAP(type, XK_Caps_Lock, GHOST_kKeyCapsLock);
GXMAP(type, XK_Scroll_Lock, GHOST_kKeyScrollLock);
GXMAP(type, XK_Num_Lock, GHOST_kKeyNumLock);
/* keypad events */
GXMAP(type, XK_KP_0, GHOST_kKeyNumpad0);
GXMAP(type, XK_KP_1, GHOST_kKeyNumpad1);
GXMAP(type, XK_KP_2, GHOST_kKeyNumpad2);
GXMAP(type, XK_KP_3, GHOST_kKeyNumpad3);
GXMAP(type, XK_KP_4, GHOST_kKeyNumpad4);
GXMAP(type, XK_KP_5, GHOST_kKeyNumpad5);
GXMAP(type, XK_KP_6, GHOST_kKeyNumpad6);
GXMAP(type, XK_KP_7, GHOST_kKeyNumpad7);
GXMAP(type, XK_KP_8, GHOST_kKeyNumpad8);
GXMAP(type, XK_KP_9, GHOST_kKeyNumpad9);
GXMAP(type, XK_KP_Decimal, GHOST_kKeyNumpadPeriod);
GXMAP(type, XK_KP_Insert, GHOST_kKeyNumpad0);
GXMAP(type, XK_KP_End, GHOST_kKeyNumpad1);
GXMAP(type, XK_KP_Down, GHOST_kKeyNumpad2);
GXMAP(type, XK_KP_Page_Down, GHOST_kKeyNumpad3);
GXMAP(type, XK_KP_Left, GHOST_kKeyNumpad4);
GXMAP(type, XK_KP_Begin, GHOST_kKeyNumpad5);
GXMAP(type, XK_KP_Right, GHOST_kKeyNumpad6);
GXMAP(type, XK_KP_Home, GHOST_kKeyNumpad7);
GXMAP(type, XK_KP_Up, GHOST_kKeyNumpad8);
GXMAP(type, XK_KP_Page_Up, GHOST_kKeyNumpad9);
GXMAP(type, XK_KP_Delete, GHOST_kKeyNumpadPeriod);
GXMAP(type, XK_KP_Enter, GHOST_kKeyNumpadEnter);
GXMAP(type, XK_KP_Add, GHOST_kKeyNumpadPlus);
GXMAP(type, XK_KP_Subtract, GHOST_kKeyNumpadMinus);
GXMAP(type, XK_KP_Multiply, GHOST_kKeyNumpadAsterisk);
GXMAP(type, XK_KP_Divide, GHOST_kKeyNumpadSlash);
/* Media keys in some keyboards and laptops with XFree86/Xorg */
#ifdef WITH_XF86KEYSYM
GXMAP(type, XF86XK_AudioPlay, GHOST_kKeyMediaPlay);
GXMAP(type, XF86XK_AudioStop, GHOST_kKeyMediaStop);
GXMAP(type, XF86XK_AudioPrev, GHOST_kKeyMediaFirst);
GXMAP(type, XF86XK_AudioRewind, GHOST_kKeyMediaFirst);
GXMAP(type, XF86XK_AudioNext, GHOST_kKeyMediaLast);
#ifdef XF86XK_AudioForward /* Debian lenny's XF86keysym.h has no XF86XK_AudioForward define */
GXMAP(type, XF86XK_AudioForward, GHOST_kKeyMediaLast);
#endif
#endif
/* some extra sun cruft (NICE KEYBOARD!) */
#ifdef __sun__
GXMAP(type, 0xffde, GHOST_kKeyNumpad1);
GXMAP(type, 0xffe0, GHOST_kKeyNumpad3);
GXMAP(type, 0xffdc, GHOST_kKeyNumpad5);
GXMAP(type, 0xffd8, GHOST_kKeyNumpad7);
GXMAP(type, 0xffda, GHOST_kKeyNumpad9);
GXMAP(type, 0xffd6, GHOST_kKeyNumpadSlash);
GXMAP(type, 0xffd7, GHOST_kKeyNumpadAsterisk);
#endif
default:
type = GHOST_kKeyUnknown;
break;
}
}
return type;
}
#undef GXMAP
/* from xclip.c xcout() v0.11 */
#define XCLIB_XCOUT_NONE 0 /* no context */
#define XCLIB_XCOUT_SENTCONVSEL 1 /* sent a request */
#define XCLIB_XCOUT_INCR 2 /* in an incr loop */
#define XCLIB_XCOUT_FALLBACK 3 /* STRING failed, need fallback to UTF8 */
#define XCLIB_XCOUT_FALLBACK_UTF8 4 /* UTF8 failed, move to compouned */
#define XCLIB_XCOUT_FALLBACK_COMP 5 /* compouned failed, move to text. */
#define XCLIB_XCOUT_FALLBACK_TEXT 6
/* Retrieves the contents of a selections. */
void GHOST_SystemX11::getClipboard_xcout(const XEvent *evt,
Atom sel, Atom target, unsigned char **txt,
unsigned long *len, unsigned int *context) const
{
Atom pty_type;
int pty_format;
unsigned char *buffer;
unsigned long pty_size, pty_items;
unsigned char *ltxt = *txt;
vector<GHOST_IWindow *> & win_vec = m_windowManager->getWindows();
vector<GHOST_IWindow *>::iterator win_it = win_vec.begin();
GHOST_WindowX11 *window = static_cast<GHOST_WindowX11 *>(*win_it);
Window win = window->getXWindow();
switch (*context) {
/* There is no context, do an XConvertSelection() */
case XCLIB_XCOUT_NONE:
/* Initialise return length to 0 */
if (*len > 0) {
free(*txt);
*len = 0;
}
/* Send a selection request */
XConvertSelection(m_display, sel, target, m_atom.XCLIP_OUT, win, CurrentTime);
*context = XCLIB_XCOUT_SENTCONVSEL;
return;
case XCLIB_XCOUT_SENTCONVSEL:
if (evt->type != SelectionNotify)
return;
if (target == m_atom.UTF8_STRING && evt->xselection.property == None) {
*context = XCLIB_XCOUT_FALLBACK_UTF8;
return;
}
else if (target == m_atom.COMPOUND_TEXT && evt->xselection.property == None) {
*context = XCLIB_XCOUT_FALLBACK_COMP;
return;
}
else if (target == m_atom.TEXT && evt->xselection.property == None) {
*context = XCLIB_XCOUT_FALLBACK_TEXT;
return;
}
/* find the size and format of the data in property */
XGetWindowProperty(m_display, win, m_atom.XCLIP_OUT, 0, 0, False,
AnyPropertyType, &pty_type, &pty_format,
&pty_items, &pty_size, &buffer);
XFree(buffer);
if (pty_type == m_atom.INCR) {
/* start INCR mechanism by deleting property */
XDeleteProperty(m_display, win, m_atom.XCLIP_OUT);
XFlush(m_display);
*context = XCLIB_XCOUT_INCR;
return;
}
/* if it's not incr, and not format == 8, then there's
* nothing in the selection (that xclip understands, anyway) */
if (pty_format != 8) {
*context = XCLIB_XCOUT_NONE;
return;
}
// not using INCR mechanism, just read the property
XGetWindowProperty(m_display, win, m_atom.XCLIP_OUT, 0, (long) pty_size,
False, AnyPropertyType, &pty_type,
&pty_format, &pty_items, &pty_size, &buffer);
/* finished with property, delete it */
XDeleteProperty(m_display, win, m_atom.XCLIP_OUT);
/* copy the buffer to the pointer for returned data */
ltxt = (unsigned char *) malloc(pty_items);
memcpy(ltxt, buffer, pty_items);
/* set the length of the returned data */
*len = pty_items;
*txt = ltxt;
/* free the buffer */
XFree(buffer);
*context = XCLIB_XCOUT_NONE;
/* complete contents of selection fetched, return 1 */
return;
case XCLIB_XCOUT_INCR:
/* To use the INCR method, we basically delete the
* property with the selection in it, wait for an
* event indicating that the property has been created,
* then read it, delete it, etc. */
/* make sure that the event is relevant */
if (evt->type != PropertyNotify)
return;
/* skip unless the property has a new value */
if (evt->xproperty.state != PropertyNewValue)
return;
/* check size and format of the property */
XGetWindowProperty(m_display, win, m_atom.XCLIP_OUT, 0, 0, False,
AnyPropertyType, &pty_type, &pty_format,
&pty_items, &pty_size, &buffer);
if (pty_format != 8) {
/* property does not contain text, delete it
* to tell the other X client that we have read
* it and to send the next property */
XFree(buffer);
XDeleteProperty(m_display, win, m_atom.XCLIP_OUT);
return;
}
if (pty_size == 0) {
/* no more data, exit from loop */
XFree(buffer);
XDeleteProperty(m_display, win, m_atom.XCLIP_OUT);
*context = XCLIB_XCOUT_NONE;
/* this means that an INCR transfer is now
* complete, return 1 */
return;
}
XFree(buffer);
/* if we have come this far, the property contains
* text, we know the size. */
XGetWindowProperty(m_display, win, m_atom.XCLIP_OUT, 0, (long) pty_size,
False, AnyPropertyType, &pty_type, &pty_format,
&pty_items, &pty_size, &buffer);
/* allocate memory to accommodate data in *txt */
if (*len == 0) {
*len = pty_items;
ltxt = (unsigned char *) malloc(*len);
}
else {
*len += pty_items;
ltxt = (unsigned char *) realloc(ltxt, *len);
}
/* add data to ltxt */
memcpy(&ltxt[*len - pty_items], buffer, pty_items);
*txt = ltxt;
XFree(buffer);
/* delete property to get the next item */
XDeleteProperty(m_display, win, m_atom.XCLIP_OUT);
XFlush(m_display);
return;
}
return;
}
GHOST_TUns8 *GHOST_SystemX11::getClipboard(bool selection) const
{
Atom sseln;
Atom target = m_atom.UTF8_STRING;
Window owner;
/* from xclip.c doOut() v0.11 */
unsigned char *sel_buf;
unsigned long sel_len = 0;
XEvent evt;
unsigned int context = XCLIB_XCOUT_NONE;
if (selection == True)
sseln = m_atom.PRIMARY;
else
sseln = m_atom.CLIPBOARD;
vector<GHOST_IWindow *> & win_vec = m_windowManager->getWindows();
vector<GHOST_IWindow *>::iterator win_it = win_vec.begin();
GHOST_WindowX11 *window = static_cast<GHOST_WindowX11 *>(*win_it);
Window win = window->getXWindow();
/* check if we are the owner. */
owner = XGetSelectionOwner(m_display, sseln);
if (owner == win) {
if (sseln == m_atom.CLIPBOARD) {
sel_buf = (unsigned char *)malloc(strlen(txt_cut_buffer) + 1);
strcpy((char *)sel_buf, txt_cut_buffer);
return sel_buf;
}
else {
sel_buf = (unsigned char *)malloc(strlen(txt_select_buffer) + 1);
strcpy((char *)sel_buf, txt_select_buffer);
return sel_buf;
}
}
else if (owner == None)
return(NULL);
while (1) {
/* only get an event if xcout() is doing something */
if (context != XCLIB_XCOUT_NONE)
XNextEvent(m_display, &evt);
/* fetch the selection, or part of it */
getClipboard_xcout(&evt, sseln, target, &sel_buf, &sel_len, &context);
/* fallback is needed. set XA_STRING to target and restart the loop. */
if (context == XCLIB_XCOUT_FALLBACK) {
context = XCLIB_XCOUT_NONE;
target = m_atom.STRING;
continue;
}
else if (context == XCLIB_XCOUT_FALLBACK_UTF8) {
/* utf8 fail, move to compouned text. */
context = XCLIB_XCOUT_NONE;
target = m_atom.COMPOUND_TEXT;
continue;
}
else if (context == XCLIB_XCOUT_FALLBACK_COMP) {
/* compouned text fail, move to text. */
context = XCLIB_XCOUT_NONE;
target = m_atom.TEXT;
continue;
}
else if (context == XCLIB_XCOUT_FALLBACK_TEXT) {
/* text fail, nothing else to try, break. */
context = XCLIB_XCOUT_NONE;
}
/* only continue if xcout() is doing something */
if (context == XCLIB_XCOUT_NONE)
break;
}
if (sel_len) {
/* only print the buffer out, and free it, if it's not
* empty
*/
unsigned char *tmp_data = (unsigned char *) malloc(sel_len + 1);
memcpy((char *)tmp_data, (char *)sel_buf, sel_len);
tmp_data[sel_len] = '\0';
if (sseln == m_atom.STRING)
XFree(sel_buf);
else
free(sel_buf);
return tmp_data;
}
return(NULL);
}
void GHOST_SystemX11::putClipboard(GHOST_TInt8 *buffer, bool selection) const
{
Window m_window, owner;
vector<GHOST_IWindow *> & win_vec = m_windowManager->getWindows();
vector<GHOST_IWindow *>::iterator win_it = win_vec.begin();
GHOST_WindowX11 *window = static_cast<GHOST_WindowX11 *>(*win_it);
m_window = window->getXWindow();
if (buffer) {
if (selection == False) {
XSetSelectionOwner(m_display, m_atom.CLIPBOARD, m_window, CurrentTime);
owner = XGetSelectionOwner(m_display, m_atom.CLIPBOARD);
if (txt_cut_buffer)
free((void *)txt_cut_buffer);
txt_cut_buffer = (char *) malloc(strlen(buffer) + 1);
strcpy(txt_cut_buffer, buffer);
}
else {
XSetSelectionOwner(m_display, m_atom.PRIMARY, m_window, CurrentTime);
owner = XGetSelectionOwner(m_display, m_atom.PRIMARY);
if (txt_select_buffer)
free((void *)txt_select_buffer);
txt_select_buffer = (char *) malloc(strlen(buffer) + 1);
strcpy(txt_select_buffer, buffer);
}
if (owner != m_window)
fprintf(stderr, "failed to own primary\n");
}
}
#ifdef WITH_XDND
GHOST_TSuccess GHOST_SystemX11::pushDragDropEvent(GHOST_TEventType eventType,
GHOST_TDragnDropTypes draggedObjectType,
GHOST_IWindow *window,
int mouseX, int mouseY,
void *data)
{
GHOST_SystemX11 *system = ((GHOST_SystemX11 *)getSystem());
return system->pushEvent(new GHOST_EventDragnDrop(system->getMilliSeconds(),
eventType,
draggedObjectType,
window, mouseX, mouseY, data)
);
}
#endif
/*
* These callbacks can be used for debugging, so we can breakpoint on an X11 error.
*
* Dummy function to get around IO Handler exiting if device invalid
* Basically it will not crash blender now if you have a X device that
* is configured but not plugged in.
*/
int GHOST_X11_ApplicationErrorHandler(Display *display, XErrorEvent *event)
{
char error_code_str[512];
XGetErrorText(display, event->error_code, error_code_str, sizeof(error_code_str));
fprintf(stderr,
"Received X11 Error:\n"
"\terror code: %d\n"
"\trequest code: %d\n"
"\tminor code: %d\n"
"\terror text: %s\n",
event->error_code, event->request_code, event->minor_code, error_code_str);
/* No exit! - but keep lint happy */
return 0;
}
int GHOST_X11_ApplicationIOErrorHandler(Display * /*display*/)
{
fprintf(stderr, "Ignoring Xlib error: error IO\n");
/* No exit! - but keep lint happy */
return 0;
}
#ifdef WITH_X11_XINPUT
/* These C functions are copied from Wine 1.1.13's wintab.c */
#define BOOL int
#define TRUE 1
#define FALSE 0
static bool match_token(const char *haystack, const char *needle)
{
const char *p, *q;
for (p = haystack; *p; ) {
while (*p && isspace(*p))
p++;
if (!*p)
break;
for (q = needle; *q && *p && tolower(*p) == tolower(*q); q++)
p++;
if (!*q && (isspace(*p) || !*p))
return TRUE;
while (*p && !isspace(*p))
p++;
}
return FALSE;
}
/* Determining if an X device is a Tablet style device is an imperfect science.
* We rely on common conventions around device names as well as the type reported
* by Wacom tablets. This code will likely need to be expanded for alternate tablet types
*
* Wintab refers to any device that interacts with the tablet as a cursor,
* (stylus, eraser, tablet mouse, airbrush, etc)
* this is not to be confused with wacom x11 configuration "cursor" device.
* Wacoms x11 config "cursor" refers to its device slot (which we mirror with
* our gSysCursors) for puck like devices (tablet mice essentially).
*/
#if 0 // unused
static BOOL is_tablet_cursor(const char *name, const char *type)
{
int i;
static const char *tablet_cursor_whitelist[] = {
"wacom",
"wizardpen",
"acecad",
"tablet",
"cursor",
"stylus",
"eraser",
"pad",
NULL
};
for (i = 0; tablet_cursor_whitelist[i] != NULL; i++) {
if (name && match_token(name, tablet_cursor_whitelist[i]))
return TRUE;
if (type && match_token(type, tablet_cursor_whitelist[i]))
return TRUE;
}
return FALSE;
}
#endif
static BOOL is_stylus(const char *name, const char *type)
{
int i;
static const char *tablet_stylus_whitelist[] = {
"stylus",
"wizardpen",
"acecad",
NULL
};
for (i = 0; tablet_stylus_whitelist[i] != NULL; i++) {
if (name && match_token(name, tablet_stylus_whitelist[i]))
return TRUE;
if (type && match_token(type, tablet_stylus_whitelist[i]))
return TRUE;
}
return FALSE;
}
static BOOL is_eraser(const char *name, const char *type)
{
if (name && match_token(name, "eraser"))
return TRUE;
if (type && match_token(type, "eraser"))
return TRUE;
return FALSE;
}
#undef BOOL
#undef TRUE
#undef FALSE
/* end code copied from wine */
void GHOST_SystemX11::refreshXInputDevices()
{
if (m_xinput_version.present) {
if (m_xtablet.StylusDevice) {
XCloseDevice(m_display, m_xtablet.StylusDevice);
m_xtablet.StylusDevice = NULL;
}
if (m_xtablet.EraserDevice) {
XCloseDevice(m_display, m_xtablet.EraserDevice);
m_xtablet.EraserDevice = NULL;
}
/* Install our error handler to override Xlib's termination behavior */
GHOST_X11_ERROR_HANDLERS_OVERRIDE(handler_store);
{
int device_count;
XDeviceInfo *device_info = XListInputDevices(m_display, &device_count);
for (int i = 0; i < device_count; ++i) {
char *device_type = device_info[i].type ? XGetAtomName(m_display, device_info[i].type) : NULL;
// printf("Tablet type:'%s', name:'%s', index:%d\n", device_type, device_info[i].name, i);
if ((m_xtablet.StylusDevice == NULL) &&
(is_stylus(device_info[i].name, device_type) || (device_info[i].type == m_atom.TABLET)))
{
// printf("\tfound stylus\n");
m_xtablet.StylusID = device_info[i].id;
m_xtablet.StylusDevice = XOpenDevice(m_display, m_xtablet.StylusID);
if (m_xtablet.StylusDevice != NULL) {
/* Find how many pressure levels tablet has */
XAnyClassPtr ici = device_info[i].inputclassinfo;
for (int j = 0; j < m_xtablet.StylusDevice->num_classes; ++j) {
if (ici->c_class == ValuatorClass) {
// printf("\t\tfound ValuatorClass\n");
XValuatorInfo *xvi = (XValuatorInfo *)ici;
m_xtablet.PressureLevels = xvi->axes[2].max_value;
if (xvi->num_axes > 3) {
/* this is assuming that the tablet has the same tilt resolution in both
* positive and negative directions. It would be rather weird if it didn't.. */
m_xtablet.XtiltLevels = xvi->axes[3].max_value;
m_xtablet.YtiltLevels = xvi->axes[4].max_value;
}
else {
m_xtablet.XtiltLevels = 0;
m_xtablet.YtiltLevels = 0;
}
break;
}
ici = (XAnyClassPtr)(((char *)ici) + ici->length);
}
}
else {
m_xtablet.StylusID = 0;
}
}
else if ((m_xtablet.EraserDevice == NULL) &&
(is_eraser(device_info[i].name, device_type)))
{
// printf("\tfound eraser\n");
m_xtablet.EraserID = device_info[i].id;
m_xtablet.EraserDevice = XOpenDevice(m_display, m_xtablet.EraserID);
if (m_xtablet.EraserDevice == NULL) m_xtablet.EraserID = 0;
}
if (device_type) {
XFree((void *)device_type);
}
}
XFreeDeviceList(device_info);
}
GHOST_X11_ERROR_HANDLERS_RESTORE(handler_store);
}
}
#endif /* WITH_X11_XINPUT */
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