This adds ScrollArea to config dialog

Not everything is visible with low resolution screens.
https://qelectrotech.org/bugtracker/view.php?id=195

sources/configdialog.cpp

@@ -15,19 +15,32 @@
 	You should have received a copy of the GNU General Public License
 	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
+#include <QScrollArea>
 #include "configdialog.h"
 #include "configpages.h"
 #include "qetapp.h"
 
+#include "machine_info.h"
+
 /**
 	Constructeur
 	@param parent QWidget parent
 */
 ConfigDialog::ConfigDialog(QWidget *parent) : QDialog(parent) {
+	Machine_info *mymachineinfo= new Machine_info(this);
+	//ScrollArea for low screens
+	QScrollArea *scroll = new QScrollArea(this);
+	scroll->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
+	scroll->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
+
 	// liste des pages
 	pages_list = new QListWidget();
 	pages_list -> setViewMode(QListView::IconMode);
+	if(mymachineinfo->i_max_screen_height()<1000){
+		pages_list -> setIconSize(QSize(64, 64));
+	} else {
 		pages_list -> setIconSize(QSize(128, 128));
+	}
 	pages_list -> setMovement(QListView::Static);
 	pages_list -> setMinimumWidth(168);
 	pages_list -> setMaximumWidth(168);
@@ -36,24 +49,39 @@ ConfigDialog::ConfigDialog(QWidget *parent) : QDialog(parent) {
 
 	// pages
 	pages_widget = new QStackedWidget();
-	
 	// boutons
-	buttons = new QDialogButtonBox(QDialogButtonBox::Ok|QDialogButtonBox::Cancel);
+	buttons = new QDialogButtonBox(
+				QDialogButtonBox::Ok
+				|QDialogButtonBox::Cancel);
+
+
+	QWidget *viewport = new QWidget(this);
+	scroll->setWidget(viewport);
+	scroll->setWidgetResizable(true);
 
 	// layouts
-	QHBoxLayout *hlayout1 = new QHBoxLayout();
+	QHBoxLayout *hlayout1 = new QHBoxLayout(viewport);
+	// add needed widgets to layout "hlayout1"
 	hlayout1 -> addWidget(pages_list);
 	hlayout1 -> addWidget(pages_widget);
 
-	QVBoxLayout *vlayout1 = new QVBoxLayout();
-	vlayout1 -> addLayout(hlayout1);
-	vlayout1 -> addWidget(buttons);
-	setLayout(vlayout1);
+	//add hlayout1 to widget
+	viewport->setLayout(hlayout1);
+
+	// Add a layout for QDialog
+	QVBoxLayout *dialog_layout = new QVBoxLayout(this);
+	dialog_layout->addWidget(scroll); // add scroll to the QDialog's layout
+	dialog_layout -> addWidget(buttons);
+	setLayout(dialog_layout);
 
 	// connexion signaux / slots
 	connect(buttons, SIGNAL(accepted()), this, SLOT(applyConf()));
 	connect(buttons, SIGNAL(rejected()), this, SLOT(reject()));
-	connect(pages_list, SIGNAL(currentRowChanged(int)), pages_widget, SLOT(setCurrentIndex(int)));
+	connect(pages_list, SIGNAL(currentRowChanged(int)),
+		pages_widget, SLOT(setCurrentIndex(int)));
+
+	resize(mymachineinfo->i_max_screen_width(),
+	       mymachineinfo->i_max_screen_height());
 
 #ifdef Q_OS_MACOS
 	if (parent) {

sources/machine_info.cpp

@@ -0,0 +1,85 @@
+/*
+	Copyright 2006-2020 The QElectroTech Team
+	This file is part of QElectroTech.
+
+	QElectroTech 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.
+
+	QElectroTech 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 QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "machine_info.h"
+#include <QScreen>
+#include <QApplication>
+
+/**
+	@brief Machine_info::Machine_info
+	@param parent
+*/
+Machine_info::Machine_info(QObject *parent) : QObject(parent)
+{
+	init_get_Screen_info();
+}
+
+/**
+	@brief Machine_info::init_get_Screen_info
+	Finds the largest screen and saves the values
+*/
+void Machine_info::init_get_Screen_info()
+{
+	const auto screens = qApp->screens();
+	for (int ii = 0; ii < screens.count(); ++ii)
+	{
+		if(
+				Max_screen_width
+				<
+				screens[ii]->geometry().width()
+				*
+				screens[ii]->devicePixelRatio()
+				)
+		{
+			Max_screen_width =
+					screens[ii]->geometry().width()
+					*
+					screens[ii]->devicePixelRatio();
+		}
+		if(
+				Max_screen_height
+				<
+				screens[ii]->geometry().height()
+				*
+				screens[ii]->devicePixelRatio()
+				)
+		{
+			Max_screen_height =
+					screens[ii]->geometry().height()
+					*
+					screens[ii]->devicePixelRatio();
+		}
+	}
+}
+
+/**
+	@brief Machine_info::get_max_screen_width
+	@return max screen width
+ */
+int32_t Machine_info::get_max_screen_width()
+{
+	return Max_screen_width;
+}
+
+/**
+	@brief Machine_info::get_max_screen_height
+	@return max screen height
+*/
+int32_t Machine_info::get_max_screen_height()
+{
+	return Max_screen_height;
+}

sources/machine_info.h

@@ -0,0 +1,45 @@
+/*
+	Copyright 2006-2020 The QElectroTech Team
+	This file is part of QElectroTech.
+
+	QElectroTech 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.
+
+	QElectroTech 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 QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef MACHINE_INFO_H
+#define MACHINE_INFO_H
+
+#include <QObject>
+
+/**
+	@brief The Machine_info class
+	This class hold information from your PC.
+*/
+class Machine_info : public QObject
+{
+	Q_OBJECT
+public:
+	explicit Machine_info(QObject *parent = nullptr);
+	int32_t i_max_screen_width();
+	int32_t i_max_screen_height();
+
+signals:
+
+private:
+	void init_get_Screen_info();
+	int32_t Max_screen_width;
+	int32_t Max_screen_height;
+
+
+};
+
+#endif // MACHINE_INFO_H