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-rw-r--r--src/device-manager.cpp692
1 files changed, 692 insertions, 0 deletions
diff --git a/src/device-manager.cpp b/src/device-manager.cpp
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+++ b/src/device-manager.cpp
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+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/*
+ * Inkscape::DeviceManager - a view of input devices available.
+ *
+ * Copyright 2010 Jon A. Cruz <jon@joncruz.org>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "device-manager.h"
+
+#include <set>
+#include <vector>
+
+#include "preferences.h"
+
+// Only needed for gtk_accelerator_parse(). Can probably drop when we switch to Gtk+ 4
+#include <gtk/gtk.h>
+
+#include <glibmm/regex.h>
+
+#include <gdkmm/display.h>
+#include <gdkmm/seat.h>
+
+#include <gtkmm/accelkey.h>
+
+#define noDEBUG_VERBOSE 1
+
+
+// This is a copy of the private fields of the GdkDevice object, used in order
+// to create a list of "fake" devices.
+struct GdkDeviceFake {
+ Glib::ustring name;
+ Gdk::InputSource source;
+ Gdk::InputMode mode;
+ bool has_cursor;
+ int num_axes;
+ int num_keys;
+};
+
+
+static void createFakeList();
+static std::vector<GdkDeviceFake> fakeList;
+
+static bool isValidDevice(Glib::RefPtr<Gdk::Device> device)
+{
+ bool valid = true;
+ for (std::vector<GdkDeviceFake>::iterator it = fakeList.begin(); it != fakeList.end() && valid; ++it) {
+ const bool name_matches = (device->get_name() == (*it).name);
+ const bool source_matches = (device->get_source() == (*it).source);
+ const bool mode_matches = (device->get_mode() == (*it).mode);
+ const bool num_axes_matches = (device->get_n_axes() == (*it).num_axes);
+ const bool num_keys_matches = (device->get_n_keys() == (*it).num_keys);
+
+ if (name_matches && source_matches && mode_matches
+ && num_axes_matches && num_keys_matches)
+ valid = false;
+ }
+
+ return valid;
+}
+
+namespace Inkscape {
+
+using std::pair;
+
+static pair<gint, gint> vals[] = {
+ pair<gint, gint>(0, 1), pair<gint, gint>(1, 1 << 1), pair<gint, gint>(2, 1 << 2), pair<gint, gint>(3, 1 << 3),
+ pair<gint, gint>(4, 1 << 4), pair<gint, gint>(5, 1 << 5), pair<gint, gint>(6, 1 << 6), pair<gint, gint>(7, 1 << 7),
+ pair<gint, gint>(8, 1 << 8), pair<gint, gint>(9, 1 << 9), pair<gint, gint>(10, 1 << 10), pair<gint, gint>(11, 1 << 11),
+ pair<gint, gint>(12, 1 << 12), pair<gint, gint>(13, 1 << 13), pair<gint, gint>(14, 1 << 14), pair<gint, gint>(15, 1 << 15),
+ pair<gint, gint>(16, 1 << 16), pair<gint, gint>(17, 1 << 17), pair<gint, gint>(18, 1 << 18), pair<gint, gint>(19, 1 << 19),
+ pair<gint, gint>(20, 1 << 20), pair<gint, gint>(21, 1 << 21), pair<gint, gint>(22, 1 << 22), pair<gint, gint>(23, 1 << 23)
+};
+static std::map<gint, gint> bitVals(vals, &vals[G_N_ELEMENTS(vals)]);
+
+
+static const int RUNAWAY_MAX = 1000;
+
+static Glib::ustring getBaseDeviceName(Gdk::InputSource source)
+{
+ Glib::ustring name;
+ switch (source) {
+ case Gdk::SOURCE_MOUSE:
+ name = "pointer";
+ break;
+ case Gdk::SOURCE_PEN:
+ name = "pen";
+ break;
+ case Gdk::SOURCE_ERASER:
+ name = "eraser";
+ break;
+ case Gdk::SOURCE_CURSOR:
+ name = "cursor";
+ break;
+ default:
+ name = "tablet";
+ }
+ return name;
+}
+
+static std::map<Glib::ustring, Gdk::AxisUse> &getStringToAxis()
+{
+ static bool init = false;
+ static std::map<Glib::ustring, Gdk::AxisUse> mapping;
+ if (!init) {
+ init = true;
+ mapping["ignore"] = Gdk::AXIS_IGNORE;
+ mapping["x"] = Gdk::AXIS_X;
+ mapping["y"] = Gdk::AXIS_Y;
+ mapping["pressure"] = Gdk::AXIS_PRESSURE;
+ mapping["xtilt"] = Gdk::AXIS_XTILT;
+ mapping["ytilt"] = Gdk::AXIS_YTILT;
+ mapping["wheel"] = Gdk::AXIS_WHEEL;
+ }
+ return mapping;
+}
+
+static std::map<Gdk::AxisUse, Glib::ustring> &getAxisToString()
+{
+ static bool init = false;
+ static std::map<Gdk::AxisUse, Glib::ustring> mapping;
+ if (!init) {
+ init = true;
+ for (auto & it : getStringToAxis()) {
+ mapping.insert(std::make_pair(it.second, it.first));
+ }
+ }
+ return mapping;
+}
+
+static std::map<Glib::ustring, Gdk::InputMode> &getStringToMode()
+{
+ static bool init = false;
+ static std::map<Glib::ustring, Gdk::InputMode> mapping;
+ if (!init) {
+ init = true;
+ mapping["disabled"] = Gdk::MODE_DISABLED;
+ mapping["screen"] = Gdk::MODE_SCREEN;
+ mapping["window"] = Gdk::MODE_WINDOW;
+ }
+ return mapping;
+}
+
+static std::map<Gdk::InputMode, Glib::ustring> &getModeToString()
+{
+ static bool init = false;
+ static std::map<Gdk::InputMode, Glib::ustring> mapping;
+ if (!init) {
+ init = true;
+ for (auto & it : getStringToMode()) {
+ mapping.insert(std::make_pair(it.second, it.first));
+ }
+ }
+ return mapping;
+}
+
+
+
+InputDevice::InputDevice()
+ : Glib::Object()
+{}
+
+InputDevice::~InputDevice() = default;
+
+class InputDeviceImpl : public InputDevice {
+public:
+ InputDeviceImpl(Glib::RefPtr<Gdk::Device> device, std::set<Glib::ustring> &knownIDs);
+ ~InputDeviceImpl() override = default;
+
+ Glib::ustring getId() const override {return id;}
+ Glib::ustring getName() const override {return name;}
+ Gdk::InputSource getSource() const override {return source;}
+ Gdk::InputMode getMode() const override {return (device->get_mode());}
+ gint getNumAxes() const override {return device->get_n_axes();}
+ bool hasCursor() const override {return device->get_has_cursor();}
+ int getNumKeys() const override {return device->get_n_keys();}
+ Glib::ustring getLink() const override {return link;}
+ virtual void setLink( Glib::ustring const& link ) {this->link = link;}
+ gint getLiveAxes() const override {return liveAxes;}
+ virtual void setLiveAxes(gint axes) {liveAxes = axes;}
+ gint getLiveButtons() const override {return liveButtons;}
+ virtual void setLiveButtons(gint buttons) {liveButtons = buttons;}
+
+ // internal methods not on public superclass:
+ virtual Glib::RefPtr<Gdk::Device> getDevice() {return device;}
+
+private:
+ InputDeviceImpl(InputDeviceImpl const &) = delete; // no copy
+ void operator=(InputDeviceImpl const &) = delete; // no assign
+
+ static Glib::ustring createId(Glib::ustring const &id, Gdk::InputSource source, std::set<Glib::ustring> &knownIDs);
+
+ Glib::RefPtr<Gdk::Device> device;
+ Glib::ustring id;
+ Glib::ustring name;
+ Gdk::InputSource source;
+ Glib::ustring link;
+ guint liveAxes;
+ guint liveButtons;
+};
+
+class IdMatcher : public std::unary_function<Glib::RefPtr<InputDeviceImpl>&, bool> {
+public:
+ IdMatcher(Glib::ustring const& target):target(target) {}
+ bool operator ()(Glib::RefPtr<InputDeviceImpl>& dev) {return dev && (target == dev->getId());}
+
+private:
+ Glib::ustring const& target;
+};
+
+class LinkMatcher : public std::unary_function<Glib::RefPtr<InputDeviceImpl>&, bool> {
+public:
+ LinkMatcher(Glib::ustring const& target):target(target) {}
+ bool operator ()(Glib::RefPtr<InputDeviceImpl>& dev) {return dev && (target == dev->getLink());}
+
+private:
+ Glib::ustring const& target;
+};
+
+InputDeviceImpl::InputDeviceImpl(Glib::RefPtr<Gdk::Device> device, std::set<Glib::ustring> &knownIDs)
+ : InputDevice(),
+ device(device),
+ id(),
+ name(!device->get_name().empty() ? device->get_name() : ""),
+ source(device->get_source()),
+ link(),
+ liveAxes(0),
+ liveButtons(0)
+{
+ id = createId(name, source, knownIDs);
+}
+
+
+Glib::ustring InputDeviceImpl::createId(Glib::ustring const &id,
+ Gdk::InputSource source,
+ std::set<Glib::ustring> &knownIDs)
+{
+ // Start with only allowing printable ASCII. Check later for more refinements.
+ bool badName = id.empty() || !id.is_ascii();
+ for (Glib::ustring::const_iterator it = id.begin(); (it != id.end()) && !badName; ++it) {
+ badName = *it < 0x20;
+ }
+
+ Glib::ustring base;
+ switch ( source ) {
+ case Gdk::SOURCE_MOUSE:
+ base = "M:";
+ break;
+ case Gdk::SOURCE_CURSOR:
+ base = "C:";
+ break;
+ case Gdk::SOURCE_PEN:
+ base = "P:";
+ break;
+ case Gdk::SOURCE_ERASER:
+ base = "E:";
+ break;
+ default:
+ base = "?:";
+ }
+
+ if (badName) {
+ base += getBaseDeviceName(source);
+ } else {
+ base += id;
+ }
+
+ // now ensure that all IDs become unique in a session.
+ int num = 1;
+ Glib::ustring result = base;
+ while ((knownIDs.find(result) != knownIDs.end()) && (num < RUNAWAY_MAX)) {
+ result = Glib::ustring::compose("%1%2", base, ++num);
+ }
+
+ knownIDs.insert(result);
+ return result;
+}
+
+
+
+
+
+class DeviceManagerImpl : public DeviceManager {
+public:
+ DeviceManagerImpl();
+
+ void loadConfig() override;
+ void saveConfig() override;
+
+ std::list<Glib::RefPtr<InputDevice const> > getDevices() override;
+
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalDeviceChanged() override;
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalAxesChanged() override;
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalButtonsChanged() override;
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalLinkChanged() override;
+
+ void addAxis(Glib::ustring const & id, gint axis) override;
+ void addButton(Glib::ustring const & id, gint button) override;
+ void setLinkedTo(Glib::ustring const & id, Glib::ustring const& link) override;
+
+ void setMode( Glib::ustring const & id, Gdk::InputMode mode ) override;
+ void setAxisUse( Glib::ustring const & id, guint index, Gdk::AxisUse use ) override;
+ void setKey( Glib::ustring const & id, guint index, guint keyval, Gdk::ModifierType mods ) override;
+
+protected:
+ std::list<Glib::RefPtr<InputDeviceImpl> > devices;
+
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalDeviceChangedPriv;
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalAxesChangedPriv;
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalButtonsChangedPriv;
+ sigc::signal<void, Glib::RefPtr<InputDevice const> > signalLinkChangedPriv;
+};
+
+
+DeviceManagerImpl::DeviceManagerImpl() :
+ DeviceManager(),
+ devices()
+{
+ auto display = Gdk::Display::get_default();
+ auto seat = display->get_default_seat();
+ auto devList = seat->get_slaves(Gdk::SEAT_CAPABILITY_ALL);
+
+ if (fakeList.empty()) {
+ createFakeList();
+ }
+ //devList = fakeList;
+
+ std::set<Glib::ustring> knownIDs;
+
+ for (auto dev : devList) {
+ // GTK+ 3 has added keyboards to the list of supported devices.
+ if(dev->get_source() != Gdk::SOURCE_KEYBOARD) {
+
+#if DEBUG_VERBOSE
+ g_message("device: name[%s] source[0x%x] mode[0x%x] cursor[%s] axis count[%d] key count[%d]", dev->name, dev->source, dev->mode,
+ dev->has_cursor?"Yes":"no", dev->num_axes, dev->num_keys);
+#endif
+
+ InputDeviceImpl* device = new InputDeviceImpl(dev, knownIDs);
+ device->reference();
+ devices.emplace_back(device);
+ }
+ }
+}
+
+void DeviceManagerImpl::loadConfig()
+{
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+ for (auto & device : devices) {
+ if (device->getSource() != Gdk::SOURCE_MOUSE) {
+ Glib::ustring path = "/devices/" + device->getId();
+
+ Gdk::InputMode mode = Gdk::MODE_DISABLED;
+ Glib::ustring val = prefs->getString(path + "/mode");
+ if (getStringToMode().find(val) != getStringToMode().end()) {
+ mode = getStringToMode()[val];
+ }
+ if (device->getMode() != mode) {
+ setMode( device->getId(), mode );
+ }
+
+ //
+
+ val = prefs->getString(path + "/axes");
+ if (!val.empty()) {
+ std::vector<Glib::ustring> parts = Glib::Regex::split_simple(";", val);
+ for (size_t i = 0; i < parts.size(); ++i) {
+ Glib::ustring name = parts[i];
+ if (getStringToAxis().find(name) != getStringToAxis().end()) {
+ Gdk::AxisUse use = getStringToAxis()[name];
+ setAxisUse( device->getId(), i, use );
+ }
+ }
+ }
+
+ val = prefs->getString(path + "/keys");
+ if (!val.empty()) {
+ std::vector<Glib::ustring> parts = Glib::Regex::split_simple(";", val);
+ for (size_t i = 0; i < parts.size(); ++i) {
+ Glib::ustring keyStr = parts[i];
+ if (!keyStr.empty()) {
+ guint key = 0;
+ GdkModifierType mods = static_cast<GdkModifierType>(0);
+ gtk_accelerator_parse( keyStr.c_str(), &key, &mods );
+ setKey( device->getId(), i, key, static_cast<Gdk::ModifierType>(mods) );
+ }
+ }
+ }
+ }
+ }
+}
+
+void DeviceManagerImpl::saveConfig()
+{
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+ for (auto & it : devices) {
+ if (it->getSource() != Gdk::SOURCE_MOUSE) {
+ Glib::ustring path = "/devices/" + it->getId();
+
+ prefs->setString( path + "/mode", getModeToString()[it->getMode()].c_str() );
+
+ Glib::ustring tmp;
+ for (gint i = 0; i < it->getNumAxes(); ++i) {
+ if (i > 0) {
+ tmp += ";";
+ }
+ Glib::RefPtr<Gdk::Device> device = it->getDevice();
+ tmp += getAxisToString()[device->get_axis_use(i)];
+ }
+ prefs->setString( path + "/axes", tmp );
+
+ tmp = "";
+ for (gint i = 0; i < it->getNumKeys(); ++i) {
+ if (i > 0) {
+ tmp += ";";
+ }
+ Glib::RefPtr<Gdk::Device> device = it->getDevice();
+ guint keyval;
+ Gdk::ModifierType modifiers;
+ device->get_key(i, keyval, modifiers);
+ Gtk::AccelKey accelkey(keyval, modifiers);
+ tmp += accelkey.get_abbrev();
+ }
+ prefs->setString( path + "/keys", tmp );
+ }
+ }
+}
+
+std::list<Glib::RefPtr<InputDevice const> > DeviceManagerImpl::getDevices()
+{
+ std::list<Glib::RefPtr<InputDevice const> > tmp;
+ for ( std::list<Glib::RefPtr<InputDeviceImpl> >::const_iterator it = devices.begin(); it != devices.end(); ++it ) {
+ tmp.emplace_back(*it);
+ }
+ return tmp;
+}
+
+void DeviceManagerImpl::setMode( Glib::ustring const & id, Gdk::InputMode mode )
+{
+ std::list<Glib::RefPtr<InputDeviceImpl> >::iterator it = std::find_if(devices.begin(), devices.end(), IdMatcher(id));
+ if ( it != devices.end() ) {
+ Glib::RefPtr<Gdk::Device> device = (*it)->getDevice();
+ if (isValidDevice(device) && ((*it)->getMode() != mode) ) {
+ bool success = device->set_mode(mode);
+ if (success) {
+ signalDeviceChangedPriv.emit(*it);
+ } else {
+ g_warning("Unable to set mode on extended input device [%s]", (*it)->getId().c_str());
+ }
+ }
+ }
+}
+
+void DeviceManagerImpl::setAxisUse( Glib::ustring const & id, guint index, Gdk::AxisUse use )
+{
+ std::list<Glib::RefPtr<InputDeviceImpl> >::iterator it = std::find_if(devices.begin(), devices.end(), IdMatcher(id));
+ if ( it != devices.end() ) {
+ if (isValidDevice((*it)->getDevice())) {
+ if (static_cast<gint>(index) <= (*it)->getNumAxes()) {
+ Glib::RefPtr<Gdk::Device> device = (*it)->getDevice();
+
+ if (device->get_axis_use(index) != use) {
+ device->set_axis_use(index, use);
+ signalDeviceChangedPriv.emit(*it);
+ }
+ } else {
+ g_warning("Invalid device axis number %d on extended input device [%s]", index, (*it)->getId().c_str());
+ }
+ }
+ }
+}
+
+void DeviceManagerImpl::setKey( Glib::ustring const & id, guint index, guint keyval, Gdk::ModifierType mods )
+{
+ //static void setDeviceKey( GdkDevice* device, guint index, guint keyval, GdkModifierType modifiers )
+ //
+
+ std::list<Glib::RefPtr<InputDeviceImpl> >::iterator it = std::find_if(devices.begin(), devices.end(), IdMatcher(id));
+ if ( it != devices.end() ) {
+ if (isValidDevice((*it)->getDevice())) {
+ Glib::RefPtr<Gdk::Device> device = (*it)->getDevice();
+ device->set_key(index, keyval, mods);
+ signalDeviceChangedPriv.emit(*it);
+ }
+ }
+}
+
+sigc::signal<void, Glib::RefPtr<InputDevice const> > DeviceManagerImpl::signalDeviceChanged()
+{
+ return signalDeviceChangedPriv;
+}
+
+sigc::signal<void, Glib::RefPtr<InputDevice const> > DeviceManagerImpl::signalAxesChanged()
+{
+ return signalAxesChangedPriv;
+}
+
+sigc::signal<void, Glib::RefPtr<InputDevice const> > DeviceManagerImpl::signalButtonsChanged()
+{
+ return signalButtonsChangedPriv;
+}
+
+sigc::signal<void, Glib::RefPtr<InputDevice const> > DeviceManagerImpl::signalLinkChanged()
+{
+ return signalLinkChangedPriv;
+}
+
+void DeviceManagerImpl::addAxis(Glib::ustring const & id, gint axis)
+{
+ if ( axis >= 0 && axis < static_cast<gint>(bitVals.size()) ) {
+ std::list<Glib::RefPtr<InputDeviceImpl> >::iterator it = std::find_if(devices.begin(), devices.end(), IdMatcher(id));
+ if ( it != devices.end() ) {
+ gint mask = bitVals[axis];
+ if ( (mask & (*it)->getLiveAxes()) == 0 ) {
+ (*it)->setLiveAxes((*it)->getLiveAxes() | mask);
+
+ // Only signal if a new axis was added
+ (*it)->reference();
+ signalAxesChangedPriv.emit(*it);
+ }
+ }
+ }
+}
+
+void DeviceManagerImpl::addButton(Glib::ustring const & id, gint button)
+{
+ if ( button >= 0 && button < static_cast<gint>(bitVals.size()) ) {
+ std::list<Glib::RefPtr<InputDeviceImpl> >::iterator it = std::find_if(devices.begin(), devices.end(), IdMatcher(id));
+ if ( it != devices.end() ) {
+ gint mask = bitVals[button];
+ if ( (mask & (*it)->getLiveButtons()) == 0 ) {
+ (*it)->setLiveButtons((*it)->getLiveButtons() | mask);
+
+ // Only signal if a new button was added
+ (*it)->reference();
+ signalButtonsChangedPriv.emit(*it);
+ }
+ }
+ }
+}
+
+void DeviceManagerImpl::setLinkedTo(Glib::ustring const & id, Glib::ustring const& link)
+{
+ std::list<Glib::RefPtr<InputDeviceImpl> >::iterator it = std::find_if(devices.begin(), devices.end(), IdMatcher(id));
+ if ( it != devices.end() ) {
+ Glib::RefPtr<InputDeviceImpl> dev = *it;
+
+ Glib::RefPtr<InputDeviceImpl> targetDev;
+ if ( !link.empty() ) {
+ // Need to be sure the target of the link exists
+ it = std::find_if(devices.begin(), devices.end(), IdMatcher(link));
+ if ( it != devices.end() ) {
+ targetDev = *it;
+ }
+ }
+
+
+ if ( (link.empty() && !dev->getLink().empty())
+ || (targetDev && (targetDev->getLink() != id)) ) {
+ // only muck about if they aren't already linked
+ std::list<Glib::RefPtr<InputDeviceImpl> > changedItems;
+
+ if ( targetDev ) {
+ // Is something else already using that link?
+ it = std::find_if(devices.begin(), devices.end(), LinkMatcher(link));
+ if ( it != devices.end() ) {
+ (*it)->setLink("");
+ changedItems.push_back(*it);
+ }
+ }
+ it = std::find_if(devices.begin(), devices.end(), LinkMatcher(id));
+ if ( it != devices.end() ) {
+ (*it)->setLink("");
+ changedItems.push_back(*it);
+ }
+ if ( targetDev ) {
+ targetDev->setLink(id);
+ changedItems.push_back(targetDev);
+ }
+ dev->setLink(link);
+ changedItems.push_back(dev);
+
+ for ( std::list<Glib::RefPtr<InputDeviceImpl> >::const_iterator iter = changedItems.begin(); iter != changedItems.end(); ++iter ) {
+ (*iter)->reference();
+ signalLinkChangedPriv.emit(*iter);
+ }
+ }
+ }
+}
+
+
+
+
+
+
+static DeviceManagerImpl* theInstance = nullptr;
+
+DeviceManager::DeviceManager()
+ : Glib::Object()
+{
+}
+
+DeviceManager::~DeviceManager() = default;
+
+DeviceManager& DeviceManager::getManager() {
+ if ( !theInstance ) {
+ theInstance = new DeviceManagerImpl();
+ }
+
+ return *theInstance;
+}
+
+} // namespace Inkscape
+
+
+static void createFakeList() {
+ if (fakeList.empty()) {
+ fakeList.resize(5);
+ fakeList[0].name = "pad";
+ fakeList[0].source = Gdk::SOURCE_PEN;
+ fakeList[0].mode = Gdk::MODE_SCREEN;
+ fakeList[0].has_cursor = true;
+ fakeList[0].num_axes = 6;
+ fakeList[0].num_keys = 8;
+
+ fakeList[1].name = "eraser";
+ fakeList[1].source = Gdk::SOURCE_ERASER;
+ fakeList[1].mode = Gdk::MODE_SCREEN;
+ fakeList[1].has_cursor = true;
+ fakeList[1].num_axes = 6;
+ fakeList[1].num_keys = 7;
+
+ fakeList[2].name = "cursor";
+ fakeList[2].source = Gdk::SOURCE_CURSOR;
+ fakeList[2].mode = Gdk::MODE_SCREEN;
+ fakeList[2].has_cursor = true;
+ fakeList[2].num_axes = 6;
+ fakeList[2].num_keys = 7;
+
+ fakeList[3].name = "stylus";
+ fakeList[3].source = Gdk::SOURCE_PEN;
+ fakeList[3].mode = Gdk::MODE_SCREEN;
+ fakeList[3].has_cursor = true;
+ fakeList[3].num_axes = 6;
+ fakeList[3].num_keys = 7;
+
+ // try to find the first *real* core pointer
+ auto display = Gdk::Display::get_default();
+ auto seat = display->get_default_seat();
+ auto devList = seat->get_slaves(Gdk::SEAT_CAPABILITY_ALL);
+
+ // Set iterator to point at beginning of device list
+ std::vector< Glib::RefPtr<Gdk::Device> >::iterator dev = devList.begin();
+
+ // Skip past any items in the device list that are not mice
+ while (dev != devList.end() && (*dev)->get_source() != Gdk::SOURCE_MOUSE) {
+ ++dev;
+ }
+
+ if (dev != devList.end()) {
+ Glib::RefPtr<Gdk::Device> device = *dev;
+ fakeList[4].name = device->get_name();
+ fakeList[4].source = device->get_source();
+ fakeList[4].mode = device->get_mode();
+ fakeList[4].has_cursor = device->get_has_cursor();
+ fakeList[4].num_axes = device->get_n_axes();
+ fakeList[4].num_keys = device->get_n_keys();
+ } else {
+ fakeList[4].name = "Core Pointer";
+ fakeList[4].source = Gdk::SOURCE_MOUSE;
+ fakeList[4].mode = Gdk::MODE_SCREEN;
+ fakeList[4].has_cursor = true;
+ fakeList[4].num_axes = 2;
+ fakeList[4].num_keys = 0;
+ }
+ }
+}
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :