First commit

Chapter01/README.txt

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+This file is a part of 1590598318-1.zip containing example source code for the 
+Foundations of Qt Development book available from APress (ISBN 1590598318).
+
+These are the examples for chapter 1 - The Qt Way of C++
+
+plain-cpp
+
+  Listings 1-1, 1-3
+
+  The MyClass example class in pure C++. No Makefile or QMake project is 
+  included, build the cpp file using your C++ compiler.
+
+
+cpp-with-qobject
+
+  Listings 1-2, 1-4
+
+  The MyClass example class inheriting QObject.
+
+
+cpp-with-qstring
+
+  Listing 1-5
+
+  The MyClass example class now uses QString instead of std::string.
+
+
+hello-world
+
+  Listings 1-6, 1-7
+
+  A simple hello world demostration to show how QMake and QMake project files 
+  are used to build Qt applications.
+
+
+signals-and-slots
+
+  Listings 1-8, 1-9
+
+  The MyClass example class now emits signals and provides slots.
+
+
+gui-connection
+
+  Listings 1-10, 1-11, 1-12
+
+  The MyClass example class is used as a bridge to carry text from one widget to
+  another.
+
+
+qlist
+
+  Listings 1-13, 1-14, 1-15, 1-16
+
+  Demonstrations of the QList class.
+
+
+stringlist-stack-queue
+
+  Listings 1-17, 1-18
+
+  Demonstrations of the QStringList, QStack and QQueue classes.
+
+
+map-hash-set
+
+  Listings 1-19, 1-20, 1-21, 1-22, 1-23, 1-24, 1-25, 1-26, 1-27, 1-28, 1-29
+
+  Demonstrations of the QMap, QHash, QSet, QMultiMap and QMultiHash classes.

Chapter01/cpp-with-qobject/cpp-with-qobject.cpp

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+/*
+ * Copyright (c) 2006-2007, Johan Thelin
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright notice, 
+ *       this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright notice,  
+ *       this list of conditions and the following disclaimer in the documentation 
+ *       and/or other materials provided with the distribution.
+ *     * Neither the name of APress nor the names of its contributors 
+ *       may be used to endorse or promote products derived from this software 
+ *       without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <string>
+using namespace std;
+
+#include <QtDebug>
+#include <QObject>
+
+class MyClass : public QObject
+{
+public:
+  MyClass( const string &text, QObject *parent = 0 );
+
+  const string &text();
+  void setText( const string &text );
+
+  int getLengthOfText();
+
+private:
+  string m_text;
+};
+
+MyClass::MyClass( const string &text, QObject *parent ) : QObject( parent )
+{
+  m_text = text;
+}
+const string &MyClass::text() { return m_text; }
+void MyClass::setText( const string &text ) { m_text = text; }
+int MyClass::getLengthOfText() { return m_text.size(); }
+
+int main( int argc, char **argv )
+{
+  QObject parent;
+  MyClass *a, *b, *c;
+
+  a = new MyClass( "foo", &parent );
+  b = new MyClass( "ba-a-ar", &parent );
+  c = new MyClass( "baz", &parent );
+
+  qDebug() << QString::fromStdString(a->text()) << " (" << a->getLengthOfText() << ")";
+  a->setText( b->text() );
+  qDebug() << QString::fromStdString(a->text()) << " (" << a->getLengthOfText() << ")";
+
+  return a->getLengthOfText() - c->getLengthOfText();
+}

Chapter01/cpp-with-qobject/example.pro

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+######################################################################
+# Automatically generated by qmake (2.00a) ti 8. aug 18:09:23 2006
+######################################################################
+
+TEMPLATE = app
+TARGET +=
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += cpp-with-qobject.cpp
+
+CONFIG += console

Chapter01/cpp-with-qstring/cpp-with-qstring.cpp

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+/*
+ * Copyright (c) 2006-2007, Johan Thelin
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright notice, 
+ *       this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright notice,  
+ *       this list of conditions and the following disclaimer in the documentation 
+ *       and/or other materials provided with the distribution.
+ *     * Neither the name of APress nor the names of its contributors 
+ *       may be used to endorse or promote products derived from this software 
+ *       without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <QObject>
+#include <QtDebug>
+
+#include <QString>
+
+class MyClass : public QObject
+{
+public:
+  MyClass( const QString &text, QObject *parent = 0 );
+
+  const QString &text();
+  void setText( const QString &text );
+
+  int getLengthOfText();
+
+private:
+  QString m_text;
+};
+
+MyClass::MyClass( const QString &text, QObject *parent ) : QObject( parent )
+{
+  m_text = text;
+}
+const QString &MyClass::text() { return m_text; }
+void MyClass::setText( const QString &text ) { m_text = text; }
+int MyClass::getLengthOfText() { return m_text.size(); }
+
+int main( int argc, char **argv )
+{
+  QObject parent;
+  MyClass *a, *b, *c;
+
+  a = new MyClass( "foo", &parent );
+  b = new MyClass( "ba-a-ar", &parent );
+  c = new MyClass( "baz", &parent );
+
+  qDebug() << a->text() << " (" << a->getLengthOfText() << ")";
+  a->setText( b->text() );
+  qDebug() << a->text() << " (" << a->getLengthOfText() << ")";
+
+  return a->getLengthOfText() - c->getLengthOfText();
+}

Chapter01/cpp-with-qstring/example.pro

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+######################################################################
+# Automatically generated by qmake (2.00a) to 10. aug 14:07:53 2006
+######################################################################
+
+TEMPLATE = app
+TARGET +=
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += cpp-with-qstring.cpp
+
+CONFIG += console

Chapter01/gui-connection/example.pro

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+######################################################################
+# Automatically generated by qmake (2.00a) sö 13. aug 19:59:30 2006
+######################################################################
+
+TEMPLATE = app
+TARGET += 
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+HEADERS += myclass.h
+SOURCES += gui-connection.cpp myclass.cpp
+CONFIG += console 

Chapter01/gui-connection/gui-connection.cpp

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+/*
+ * Copyright (c) 2006-2007, Johan Thelin
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright notice, 
+ *       this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright notice,  
+ *       this list of conditions and the following disclaimer in the documentation 
+ *       and/or other materials provided with the distribution.
+ *     * Neither the name of APress nor the names of its contributors 
+ *       may be used to endorse or promote products derived from this software 
+ *       without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "myclass.h"
+
+#include <QApplication>
+#include <QWidget>
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QLineEdit>
+
+int main( int argc, char **argv )
+{
+  QApplication app( argc, argv );
+
+  QWidget widget;
+  QLineEdit *lineEdit = new QLineEdit();
+  QLabel *label = new QLabel();
+
+  QVBoxLayout *layout = new QVBoxLayout();
+  layout->addWidget( lineEdit );
+  layout->addWidget( label );
+  widget.setLayout( layout );
+
+  MyClass *bridge = new MyClass( "", &app );
+
+  QObject::connect(
+    lineEdit, SIGNAL(textChanged(const QString&)),
+    bridge, SLOT(setText(const QString&)) );
+  QObject::connect(
+    bridge, SIGNAL(textChanged(const QString&)),
+    label, SLOT(setText(const QString&)) );
+
+  widget.show();
+
+  return app.exec();
+}

Chapter01/gui-connection/myclass.cpp

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+/*
+ * Copyright (c) 2006-2007, Johan Thelin
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright notice, 
+ *       this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright notice,  
+ *       this list of conditions and the following disclaimer in the documentation 
+ *       and/or other materials provided with the distribution.
+ *     * Neither the name of APress nor the names of its contributors 
+ *       may be used to endorse or promote products derived from this software 
+ *       without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "myclass.h"
+
+MyClass::MyClass( const QString &text, QObject *parent ) : QObject( parent )
+{
+  m_text = text;
+}
+
+const QString &MyClass::text() const
+{
+  return m_text;
+}
+
+void MyClass::setText( const QString &text )
+{
+  if( m_text == text )
+    return;
+
+  m_text = text;
+  emit textChanged( m_text );
+}
+
+int MyClass::getLengthOfText() const
+{
+  return m_text.size();
+}