Add ChangeDPI action

src/logid/CMakeLists.txt

@@ -26,6 +26,7 @@ add_executable(logid
         actions/ToggleHiresScroll.cpp
         actions/ToggleSmartShift.cpp
         actions/CycleDPI.cpp
+        actions/ChangeDPI.cpp
         actions/GestureAction.cpp
         actions/gesture/Gesture.cpp
         actions/gesture/ReleaseGesture.cpp

src/logid/actions/Action.cpp

@@ -25,6 +25,7 @@
 #include "GestureAction.h"
 #include "NullAction.h"
 #include "CycleDPI.h"
+#include "ChangeDPI.h"
 
 using namespace logid;
 using namespace logid::actions;
@@ -60,6 +61,8 @@ std::shared_ptr<Action> Action::makeAction(Device *device, libconfig::Setting
             return std::make_shared<GestureAction>(device, setting);
         else if(type == "cycledpi")
             return std::make_shared<CycleDPI>(device, setting);
+        else if(type == "changedpi")
+            return std::make_shared<ChangeDPI>(device, setting);
         else if(type == "none")
             return std::make_shared<NullAction>(device);
         else

src/logid/actions/ChangeDPI.cpp

@@ -0,0 +1,109 @@
+/*
+ * Copyright 2019-2020 PixlOne
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include "ChangeDPI.h"
+#include "../Device.h"
+#include "../util/task.h"
+#include "../util/log.h"
+#include "../backend/hidpp20/Error.h"
+#include "../backend/hidpp20/features/ReprogControls.h"
+
+using namespace logid::actions;
+
+ChangeDPI::ChangeDPI(Device *device, libconfig::Setting &setting) :
+    Action(device), _config(device, setting)
+{
+    _dpi = _device->getFeature<features::DPI>("dpi");
+    if(!_dpi)
+        logPrintf(WARN, "%s:%d: DPI feature not found, cannot use "
+                        "ChangeDPI action.",
+                  _device->hidpp20().devicePath().c_str(),
+                  _device->hidpp20().deviceIndex());
+}
+
+void ChangeDPI::press()
+{
+    _pressed = true;
+    if(_dpi) {
+        task::spawn([this]{
+            try {
+                uint16_t last_dpi = _dpi->getDPI(_config.sensor());
+                _dpi->setDPI(last_dpi + _config.interval(), _config.sensor());
+            } catch (backend::hidpp20::Error& e) {
+                if(e.code() == backend::hidpp20::Error::InvalidArgument)
+                    logPrintf(WARN, "%s:%d: Could not get/set DPI for sensor "
+                                    "%d",
+                              _device->hidpp20().devicePath().c_str(),
+                              _device->hidpp20().deviceIndex(),
+                              _config.sensor());
+                else
+                    throw e;
+            }
+        });
+    }
+}
+
+void ChangeDPI::release()
+{
+    _pressed = false;
+}
+
+uint8_t ChangeDPI::reprogFlags() const
+{
+    return backend::hidpp20::ReprogControls::TemporaryDiverted;
+}
+
+ChangeDPI::Config::Config(Device *device, libconfig::Setting &config) :
+        Action::Config(device),  _interval (0), _sensor (0)
+{
+    if(!config.isGroup()) {
+        logPrintf(WARN, "Line %d: action must be an object, skipping.",
+                  config.getSourceLine());
+        return;
+    }
+
+    try {
+        auto& inc = config.lookup("inc");
+        if(inc.getType() != libconfig::Setting::TypeInt)
+            logPrintf(WARN, "Line %d: inc must be an integer",
+                      inc.getSourceLine());
+        _interval = (int)inc;
+    } catch(libconfig::SettingNotFoundException& e) {
+        logPrintf(WARN, "Line %d: inc is a required field, skipping.",
+            config.getSourceLine());
+    }
+
+    try {
+        auto& sensor = config.lookup("sensor");
+        if(sensor.getType() != libconfig::Setting::TypeInt)
+            logPrintf(WARN, "Line %d: sensor must be an integer",
+                      sensor.getSourceLine());
+        _sensor = (int)sensor;
+    } catch(libconfig::SettingNotFoundException& e) {
+        // Ignore
+    }
+}
+
+uint16_t ChangeDPI::Config::interval() const
+{
+    return _interval;
+}
+
+uint8_t ChangeDPI::Config::sensor() const
+{
+    return _sensor;
+}

src/logid/actions/ChangeDPI.h

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2019-2020 PixlOne
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#ifndef LOGID_ACTION_CHANGEDPI_H
+#define LOGID_ACTION_CHANGEDPI_H
+
+#include <libconfig.h++>
+#include "Action.h"
+#include "../features/DPI.h"
+
+namespace logid {
+    namespace actions {
+        class ChangeDPI : public Action
+        {
+        public:
+            explicit ChangeDPI(Device* device, libconfig::Setting& setting);
+
+            virtual void press();
+            virtual void release();
+
+            virtual uint8_t reprogFlags() const;
+
+            class Config : public Action::Config
+            {
+            public:
+                Config(Device* device, libconfig::Setting& setting);
+                uint16_t interval() const;
+                uint8_t sensor() const;
+            private:
+                uint16_t _interval;
+                uint8_t _sensor;
+            };
+
+        protected:
+            Config _config;
+            std::shared_ptr<features::DPI> _dpi;
+        };
+    }}
+
+#endif //LOGID_ACTION_CHANGEDPI_H

src/logid/features/DPI.cpp

@@ -66,15 +66,23 @@ DPI::DPI(Device* device) : DeviceFeature(device), _config (device),
 void DPI::configure()
 {
     const uint8_t sensors = _adjustable_dpi.getSensorCount();
-    for(uint8_t i = 0; i < _config.getSensorCount() && i < sensors; i++) {
+    for(uint8_t i = 0; i < _config.getSensorCount(); i++) {
+        hidpp20::AdjustableDPI::SensorDPIList dpi_list;
+        if(_dpi_lists.size() <= i) {
+            dpi_list = _adjustable_dpi.getSensorDPIList(i);
+            _dpi_lists.push_back(dpi_list);
+        } else {
+            dpi_list = _dpi_lists[i];
+        }
+        if(i < sensors) {
             auto dpi = _config.getDPI(i);
             if(dpi) {
-            auto dpi_list = _adjustable_dpi.getSensorDPIList(i);
                 _adjustable_dpi.setSensorDPI(i, getClosestDPI(dpi_list,
                         dpi));
             }
         }
     }
+}
 
 void DPI::listen()
 {
@@ -87,7 +95,15 @@ uint16_t DPI::getDPI(uint8_t sensor)
 
 void DPI::setDPI(uint16_t dpi, uint8_t sensor)
 {
-    _adjustable_dpi.setSensorDPI(sensor, dpi);
+    hidpp20::AdjustableDPI::SensorDPIList dpi_list;
+    if(_dpi_lists.size() <= sensor) {
+        dpi_list = _adjustable_dpi.getSensorDPIList(sensor);
+        for(std::size_t i = _dpi_lists.size()-1; i <= sensor; i++) {
+            _dpi_lists.push_back(_adjustable_dpi.getSensorDPIList(i));
+        }
+    }
+    dpi_list = _dpi_lists[sensor];
+    _adjustable_dpi.setSensorDPI(sensor, getClosestDPI(dpi_list, dpi));
 }
 
 /* Some devices have multiple sensors, but an older config format

src/logid/features/DPI.h

@@ -46,6 +46,7 @@ namespace features
     private:
         Config _config;
         backend::hidpp20::AdjustableDPI _adjustable_dpi;
+        std::vector<backend::hidpp20::AdjustableDPI::SensorDPIList> _dpi_lists;
     };
  }}