playground QskDataControlMapper

playground/models/CMakeLists.txt

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+############################################################################
+# QSkinny - Copyright (C) The authors
+#           SPDX-License-Identifier: BSD-3-Clause
+############################################################################
+
+qsk_add_example(models Window.h Window.cpp QskDataControlMapper.cpp QskDataControlMapper.h main.cpp)
+
+target_link_libraries(models PRIVATE Qt::Sql)

playground/models/QskDataControlMapper.cpp

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+//
+// Created by aldo on 27/01/21.
+//
+
+#include "QskDataControlMapper.h"
+
+QskDataControlMapper::QskDataControlMapper() : m(nullptr){
+
+}
+
+void QskDataControlMapper::addMapping(QskControl *widget, int section) {
+    if(widget)
+    	addMapping(widget,section,widget->metaObject()->userProperty().name());
+}
+
+void QskDataControlMapper::addMapping(QskControl *widget, int section, const QByteArray &propertyName) {
+    Item item;
+    item.control=widget;
+    item.section=section;
+    item.property=propertyName;
+    item.index=m->index(currentIndex.row(),section);
+    items.append(item);
+}
+
+void QskDataControlMapper::setModel(QAbstractItemModel *model) {
+	m=model;
+	currentIndex=QModelIndex();
+    if(m) {
+    	connect(m,&QAbstractItemModel::dataChanged,this,
+			&QskDataControlMapper::_dataChanged);
+    }
+}
+
+bool QskDataControlMapper::qContainsIndex(const QModelIndex & idx, const QModelIndex & topLeft, const QModelIndex & bottomRight)
+{
+	return idx.row() >= topLeft.row() && idx.row() <= bottomRight.row()
+		&& idx.column() >= topLeft.column() && idx.column() <= bottomRight.column();
+}
+
+void QskDataControlMapper::_dataChanged(const QModelIndex & topLeft, const QModelIndex & bottomRight, const QVector<int> &)
+{
+	for (auto& x : items) {
+		if (qContainsIndex(x.index, topLeft, bottomRight)) {
+			populate(x);
+		}
+	}
+}
+
+void QskDataControlMapper::populate(QskDataControlMapper::Item & x)
+{
+	x.control->setProperty(x.property,
+						   m->index(currentIndex.row(),x.section).data(Qt::EditRole));
+}
+
+void QskDataControlMapper::populate()
+{
+	for (auto& x : items) {
+		populate(x);
+	}
+}
+
+void QskDataControlMapper::submit() {
+    if(!m)
+        return;
+	for(auto & x  : items) {
+		m->setData(m->index(currentIndex.row(), x.section),
+				   x.control->property(x.property));
+	}
+}
+
+void QskDataControlMapper::setCurrentIndex(int index) {
+    if(!m)
+        return;
+	currentIndex=m->index(index,0);
+	populate();
+}
+
+#include "moc_QskDataControlMapper.cpp"

playground/models/QskDataControlMapper.h

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+#ifndef QSKDATACONTROLMAPPER_H
+#define QSKDATACONTROLMAPPER_H
+
+#include <QskControl.h>
+#include <QAbstractItemModel>
+
+class QskDataControlMapper : public QObject {
+	Q_OBJECT
+
+private:
+
+	struct Item;
+
+public:
+
+	QskDataControlMapper();
+
+	void addMapping(QskControl* widget, int section);
+	void addMapping(QskControl* widget, int section, const QByteArray &propertyName);
+
+	void setModel(QAbstractItemModel* model);
+
+	static bool qContainsIndex(const QModelIndex &idx, const QModelIndex &topLeft,
+							   const QModelIndex &bottomRight);
+
+	void _dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &);
+
+	void populate(QskDataControlMapper::Item & x);
+
+	void populate ();
+
+	void submit();
+
+	void setCurrentIndex(int index);
+
+private:
+
+	QList<Item> items;
+
+	QAbstractItemModel* m;
+	QPersistentModelIndex currentIndex;
+
+	struct Item {
+		QPointer<QskControl> control;
+		int section;
+		QByteArray property;
+		QPersistentModelIndex index;
+	};
+
+};
+
+
+
+#endif //QSKDATACONTROLMAPPER_H

playground/models/Window.cpp

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+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "Window.h"
+
+#include "QskSpinBox.h"
+
+#include <QskDialogButtonBox.h>
+#include <QskLinearBox.h>
+#include <QskPushButton.h>
+#include <QskTextInput.h>
+
+#include <QskDataControlMapper.h>
+
+#include <QSqlTableModel>
+#include <QSqlDatabase>
+#include <QSqlQuery>
+
+Window::Window( )
+    
+{
+    auto db = QSqlDatabase::addDatabase("QSQLITE");
+    db.setDatabaseName(":memory:");
+    db.open();
+    QSqlQuery q(db);
+    q.exec("create table test(id integer,value text);");
+    q.exec("insert into test (id,value) values (1,'HELLO');");
+    q.exec("insert into test (id,value) values (2,'WORLD');");
+
+    auto table = new QSqlTableModel  (nullptr,db);
+    table->setTable( "test" );
+    table->select();
+
+    auto txt = new QskTextInput();
+    auto spin = new QskSpinBox();
+
+    auto mapper = new QskDataControlMapper();
+    mapper->setModel(table);
+    /*
+    Not needed if we set  USER true for the corresponding Q_PROPERTY in QskBoundedInput and QskTextInput
+    maybe could be done also for other controls
+    mapper->addMapping(spin, 0,"value");
+    mapper->addMapping(txt, 1, "text");
+    */
+    mapper->addMapping(spin, 0); // needs USER=true for value in QskBoundedInput
+    mapper->addMapping(txt, 1); // needs USER=true for text in QskTextInput
+
+    mapper->setCurrentIndex(0);
+
+    auto v = new QskLinearBox(Qt::Vertical);
+    v->addSpacer( 0,100 );
+    v->addItem( spin );
+    v->addItem( txt );
+    addItem(v);
+    auto h = new QskLinearBox(Qt::Horizontal);
+    auto prev = new QskPushButton("<",h);
+    auto next = new QskPushButton(">",h);
+    connect(prev,&QskPushButton::clicked,[=]() { mapper->setCurrentIndex( 0 ); });
+    connect(next,&QskPushButton::clicked,[=]() { mapper->setCurrentIndex( 1 ); });
+    v->addItem(h);
+    v->addSpacer( 0,100 );
+}
+
+
+#include "moc_Window.cpp"

playground/models/Window.h

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+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#pragma once
+
+#include <QskDialog.h>
+#include <QskWindow.h>
+
+class QskDialogButtonBox;
+class QskLinearBox;
+
+class Window : public QskWindow
+{
+    Q_OBJECT
+
+  public:
+    Window();
+
+
+};

playground/models/main.cpp

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+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "Window.h"
+
+#include <SkinnyShortcut.h>
+
+#include <QskFocusIndicator.h>
+#include <QskObjectCounter.h>
+
+#include <QGuiApplication>
+
+int main( int argc, char* argv[] )
+{
+#ifdef ITEM_STATISTICS
+    QskObjectCounter counter( true );
+#endif
+
+    QGuiApplication app( argc, argv );
+
+    SkinnyShortcut::enable( SkinnyShortcut::AllShortcuts );
+
+    Window window;
+    window.resize( 600, 400 );
+
+    auto focusIndicator = new QskFocusIndicator();
+    focusIndicator->setObjectName( "FocusIndicator" );
+
+    window.addItem( focusIndicator );
+    window.show();
+
+    return app.exec();
+}