lxqt-panel: Qeyes plugin (#1847)

* Adding qeyes plugin

* load() returns success/failure

* remove unneeded printf()

* Add qeyes plugin to the list of plugin

* Add dialog to confiure plugin

* add qeyes.desktop

* Add translation, changed name from qeyesplugin to qeyes

* add several eyes type

* look in the lxqt specific data dir for the eyes type

* Several changes:

- add support for translation of the text
- reload the availables eyes not a dialog creation (which happend once),
  but when the dialog is showed
- using QStringLiteral when possible
- renamed "<internal>" as "QEyes default"

* compare the old_types with the value and not the key

* Add forgotten Q_OBJECT

* Add qeyes.ts file

* Do adjustSize() after populating the QComboBox()

* Stop to import 'skins' from foreign projects

CMakeLists.txt

@@ -170,6 +170,13 @@ if(SHOWDESKTOP_PLUGIN)
     add_subdirectory(plugin-showdesktop)
 endif()
 
+setByDefault(QEYES_PLUGIN Yes)
+if(QEYES_PLUGIN)
+    list(APPEND ENABLED_PLUGINS "QEyes")
+    add_subdirectory(plugin-qeyes)
+endif()
+
+
 setByDefault(NETWORKMONITOR_PLUGIN Yes)
 if(NETWORKMONITOR_PLUGIN)
     find_library(STATGRAB_LIB statgrab)

plugin-qeyes/CMakeLists.txt

@@ -0,0 +1,25 @@
+set(PLUGIN "qeyes")
+
+set(HEADERS
+    qeyes.h
+    qeyesimagewidget.h
+    qeyesvectorwidget.h
+    qeyeswidget.h
+    qeyesconfigdialog.h
+)
+
+set(SOURCES
+    qeyes.cpp
+    qeyesimagewidget.cpp
+    qeyesvectorwidget.cpp
+    qeyeswidget.cpp
+    qeyesconfigdialog.cpp
+)
+
+set(LIBRARIES
+    ${LIBRARIES}
+)
+
+add_subdirectory(types)
+
+BUILD_LXQT_PLUGIN(${PLUGIN})

plugin-qeyes/qeyes.cpp

@@ -0,0 +1,146 @@
+/*
+ *  qeyes - an xeyes clone
+ *
+ *  Copyright (C) 2022 Goffredo Baroncelli <kreijack@inwind.it>
+ *
+ *  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.
+ *
+ */
+
+#include <stdio.h>
+#include <QtWidgets/QHBoxLayout>
+#include <QtWidgets/QPushButton>
+#include <QtWidgets/QDialog>
+#include <QtCore/QFile>
+#include <QtCore/QTextStream>
+
+#include "../panel/pluginsettings.h"
+
+#include "qeyesconfigdialog.h"
+#include "qeyes.h"
+
+ILXQtPanelPlugin *QEyesPluginLibrary::instance(const ILXQtPanelPluginStartupInfo &startupInfo) const
+{
+    return new QEyesPlugin(startupInfo);
+}
+
+QEyesPlugin::QEyesPlugin(const ILXQtPanelPluginStartupInfo &startupInfo) :
+    QObject(),
+    ILXQtPanelPlugin(startupInfo)
+{
+    w0 = new QWidget();
+    l = new QVBoxLayout();
+    l->setSpacing(0);
+    l->setMargin(0);
+    l->setContentsMargins (0, 0, 0, 0);
+    w0->setLayout(l);
+
+    w = new QEyesVectorWidget();
+    l->addWidget(w);
+    w->setTransparent(true);
+    vectorEyes = true;
+
+    settingsChanged();
+    realign();
+}
+
+void QEyesPlugin::realign() {
+    const auto g = panel()->globalGeometry();
+    if (panel()->isHorizontal()) {
+        w->setMinimumHeight(g.height() / 2);
+        w->setMinimumWidth(0.8 * g.height() * w->getNumEyes() );
+    } else {
+        w->setMinimumWidth(g.width() / 2);
+        w->setMinimumHeight(g.width());
+    }
+    w->update();
+}
+
+
+static bool loadImage(QString path, QEyesImageWidget *w) {
+    QFile file(path + QStringLiteral("/config"));
+    file.open(QIODevice::ReadOnly);
+    QTextStream in(&file);
+    QString eye, pupil;
+    int num=1, wall=1;
+
+    while(!in.atEnd()) {
+        QString line = in.readLine();
+        QStringList  fields = line.split(QLatin1String("="));
+        const auto name = fields.at(0).trimmed();
+        auto value = fields.at(1).trimmed();
+        if (value.size() > 1 && value.at(0) == QChar(QLatin1Char('"')))
+            value = value.mid(1, value.size() - 2);
+        if (name == QStringLiteral("wall-thickness")) {
+            wall = value.toInt();
+        } else if (name == QStringLiteral("eye-pixmap")) {
+            eye = path + QStringLiteral("/") + value;
+        } else if (name == QStringLiteral("pupil-pixmap")) {
+            pupil = path + QStringLiteral("/") + value;
+        } else if (name.trimmed() == QStringLiteral("num-eyes")) {
+            num = value.toInt();
+        }
+    }
+
+    return w->load(eye, pupil, wall, num);
+}
+
+void QEyesPlugin::settingsChanged() {
+    PluginSettings *_settings = settings();
+
+    const auto type = _settings->value(QStringLiteral("eye_type"),
+                            internalEye).toString();
+
+    if (type == internalEye && !vectorEyes) {
+        l->removeWidget(w);
+        delete w;
+        w = new QEyesVectorWidget();
+        l->addWidget(w);
+        w->setTransparent(true);
+        vectorEyes = true;
+    } else if (type != internalEye && vectorEyes) {
+        l->removeWidget(w);
+        delete w;
+        w = new QEyesImageWidget();
+        l->addWidget(w);
+        w->setTransparent(true);
+        vectorEyes = false;
+    }
+
+    if (type != internalEye && !vectorEyes) {
+        if (!loadImage(type, dynamic_cast<QEyesImageWidget*>(w))) {
+            l->removeWidget(w);
+            delete w;
+            w = new QEyesVectorWidget();
+            l->addWidget(w);
+            w->setTransparent(true);
+            vectorEyes = true;
+
+            _settings->setValue(QStringLiteral("eye_type"),
+                                internalEye);
+            std::cerr << "ERROR: crash during load image\n" ;
+        }
+    }
+
+    w->setNumEyes(_settings->value(QStringLiteral("num_eyes"),
+                            QLatin1String("2")).toInt());
+    realign();
+}
+
+QDialog * QEyesPlugin::configureDialog() {
+    return new QEyesConfigDialog(settings(), this);
+}
+
+const QString QEyesPlugin::internalEye = QStringLiteral("<internal>");

plugin-qeyes/qeyes.h

@@ -0,0 +1,67 @@
+/*
+ *  qeyes - an xeyes clone
+ *
+ *  Copyright (C) 2022 Goffredo Baroncelli <kreijack@inwind.it>
+ *
+ *  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.
+ *
+ */
+
+#include <iostream>
+
+#include <QtWidgets/QApplication>
+#include <QtCore/QCommandLineParser>
+#include <QtWidgets/QVBoxLayout>
+
+#include "../panel/ilxqtpanelplugin.h"
+
+#include "qeyesvectorwidget.h"
+#include "qeyesimagewidget.h"
+
+class QEyesPlugin :  public QObject, public ILXQtPanelPlugin
+{
+    Q_OBJECT
+
+public:
+    QEyesPlugin(const ILXQtPanelPluginStartupInfo &startupInfo);
+
+    virtual QWidget *widget() override { return w0; }
+    virtual QString themeId()  const override{
+        return QStringLiteral("QEyesPlugin");
+    }
+    virtual void realign() override;
+    virtual Flags flags() const override { return HaveConfigDialog ; }
+    virtual QDialog * configureDialog() override;
+    virtual void settingsChanged() override;
+    static const QString internalEye;
+
+private:
+    QWidget *w0;
+    QVBoxLayout *l;
+    QAbstractEyesWidget *w;
+    bool vectorEyes = true;
+
+};
+
+class QEyesPluginLibrary: public QObject, public ILXQtPanelPluginLibrary
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "lxqt.org/Panel/PluginInterface/3.0")
+    Q_INTERFACES(ILXQtPanelPluginLibrary)
+public:
+    ILXQtPanelPlugin *instance(const ILXQtPanelPluginStartupInfo &startupInfo) const;
+};
+
+