1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the test suite of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 

    43 #include <QtTest/QtTest>

    44 #include <QTextEdit>

    45 #include <QLineEdit>

    46 #include <QVBoxLayout>

    47 #include <QFontDialog>

    48 #include <QPushButton>

    49 

    50 #define private public

    51 #include <qfont.h>

    52 #include <private/qtextengine_p.h>

    53 #include <private/qfontengine_p.h>

    54 #include <qtextlayout.h>

    55 #undef private

    56 

    57 

    58 class MyEdit : public QTextEdit {

    59     Q_OBJECT

    60 public:

    61     MyEdit(QWidget *p) : QTextEdit(p) { setReadOnly(true); }

    62 public slots:

    63     void setText(const QString &str);

    64     void changeFont();

    65 public:

    66     QLineEdit *lineEdit;

    67 };

    68 

    69 void MyEdit::setText(const QString &str)

    70 {

    71     if (str.isEmpty()) {

    72         clear();

    73         return;

    74     }

    75     QTextLayout layout(str, lineEdit->font());

    76     QTextEngine *e = layout.d;

    77     e->itemize();

    78     e->shape(0);

    79 

    80     QString result;

    81     result = "Using font '" + e->fontEngine(e->layoutData->items[0])->fontDef.family + "'\n\n";

    82 

    83     result += "{ { ";

    84     for (int i = 0; i < str.length(); ++i) 

    85         result += "0x" + QString::number(str.at(i).unicode(), 16) + ", ";

    86     result += "0x0 },\n  { ";

    87     for (int i = 0; i < e->layoutData->items[0].num_glyphs; ++i)

    88 	result += "0x" + QString::number(e->layoutData->glyphPtr[i].glyph, 16) + ", ";

    89     result += "0x0 } }";

    90 

    91     setPlainText(result);

    92 }

    93 

    94 void MyEdit::changeFont()

    95 {

    96     bool ok;

    97     QFont f = QFontDialog::getFont(&ok, lineEdit->font(), topLevelWidget());

    98     if (ok)

    99         lineEdit->setFont(f);

   100 }

   101 

   102 int main(int argc,  char **argv)

   103 {

   104     QApplication a(argc, argv);

   105 

   106     QWidget *mw = new QWidget(0);

   107     QVBoxLayout *l = new QVBoxLayout(mw);

   108 

   109     QLineEdit *le = new QLineEdit(mw);

   110     l->addWidget(le);

   111 

   112     MyEdit *view = new MyEdit(mw);

   113     view->lineEdit = le;

   114     l->addWidget(view);

   115 

   116     QPushButton *button = new QPushButton("Change Font", mw);

   117     l->addWidget(button);

   118 

   119     QObject::connect(le, SIGNAL(textChanged(QString)), view, SLOT(setText(QString)));

   120     QObject::connect(button, SIGNAL(clicked()), view, SLOT(changeFont()));

   121 

   122     mw->resize(500, 300);

   123     mw->show();

   124 

   125     return a.exec();

   126 }

   127 

   128 

   129 #include <main.moc>