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     2 **

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

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     7 ** This file is part of the examples of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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

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    38 ** $QT_END_LICENSE$

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

    41 

    42 #include <QtGui>

    43 

    44 #include "characterwidget.h"

    45 #include "mainwindow.h"

    46 

    47 //! [0]

    48 MainWindow::MainWindow()

    49 {

    50     QWidget *centralWidget = new QWidget;

    51 

    52     QLabel *fontLabel = new QLabel(tr("Font:"));

    53     fontCombo = new QFontComboBox;

    54     QLabel *sizeLabel = new QLabel(tr("Size:"));

    55     sizeCombo = new QComboBox;

    56     QLabel *styleLabel = new QLabel(tr("Style:"));

    57     styleCombo = new QComboBox;

    58     QLabel *fontMergingLabel = new QLabel(tr("Automatic Font Merging:"));

    59     fontMerging = new QCheckBox;

    60     fontMerging->setChecked(true);

    61 

    62     scrollArea = new QScrollArea;

    63     characterWidget = new CharacterWidget;

    64     scrollArea->setWidget(characterWidget);

    65 //! [0]

    66 

    67 //! [1]

    68     findStyles(fontCombo->currentFont());

    69 //! [1]

    70     findSizes(fontCombo->currentFont());

    71 

    72 //! [2]

    73     lineEdit = new QLineEdit;

    74     QPushButton *clipboardButton = new QPushButton(tr("&To clipboard"));

    75 //! [2]

    76 

    77 //! [3]

    78     clipboard = QApplication::clipboard();

    79 //! [3]

    80 

    81 //! [4]

    82     connect(fontCombo, SIGNAL(currentFontChanged(const QFont &)),

    83             this, SLOT(findStyles(const QFont &)));

    84     connect(fontCombo, SIGNAL(currentFontChanged(const QFont &)),

    85             this, SLOT(findSizes(const QFont &)));

    86     connect(fontCombo, SIGNAL(currentFontChanged(const QFont &)),

    87             characterWidget, SLOT(updateFont(const QFont &)));

    88     connect(sizeCombo, SIGNAL(currentIndexChanged(const QString &)),

    89             characterWidget, SLOT(updateSize(const QString &)));

    90     connect(styleCombo, SIGNAL(currentIndexChanged(const QString &)),

    91             characterWidget, SLOT(updateStyle(const QString &)));

    92 //! [4] //! [5]

    93     connect(characterWidget, SIGNAL(characterSelected(const QString &)),

    94             this, SLOT(insertCharacter(const QString &)));

    95     connect(clipboardButton, SIGNAL(clicked()), this, SLOT(updateClipboard()));

    96 //! [5]

    97     connect(fontMerging, SIGNAL(toggled(bool)), characterWidget, SLOT(updateFontMerging(bool)));

    98 

    99 //! [6]

   100     QHBoxLayout *controlsLayout = new QHBoxLayout;

   101     controlsLayout->addWidget(fontLabel);

   102     controlsLayout->addWidget(fontCombo, 1);

   103     controlsLayout->addWidget(sizeLabel);

   104     controlsLayout->addWidget(sizeCombo, 1);

   105     controlsLayout->addWidget(styleLabel);

   106     controlsLayout->addWidget(styleCombo, 1);

   107     controlsLayout->addWidget(fontMergingLabel);

   108     controlsLayout->addWidget(fontMerging, 1);

   109     controlsLayout->addStretch(1);

   110 

   111     QHBoxLayout *lineLayout = new QHBoxLayout;

   112     lineLayout->addWidget(lineEdit, 1);

   113     lineLayout->addSpacing(12);

   114     lineLayout->addWidget(clipboardButton);

   115 

   116     QVBoxLayout *centralLayout = new QVBoxLayout;

   117     centralLayout->addLayout(controlsLayout);

   118     centralLayout->addWidget(scrollArea, 1);

   119     centralLayout->addSpacing(4);

   120     centralLayout->addLayout(lineLayout);

   121     centralWidget->setLayout(centralLayout);

   122 

   123     setCentralWidget(centralWidget);

   124     setWindowTitle(tr("Character Map"));

   125 }

   126 //! [6]

   127 

   128 //! [7]

   129 void MainWindow::findStyles(const QFont &font)

   130 {

   131     QFontDatabase fontDatabase;

   132     QString currentItem = styleCombo->currentText();

   133     styleCombo->clear();

   134 //! [7]

   135 

   136 //! [8]

   137     QString style;

   138     foreach (style, fontDatabase.styles(font.family()))

   139         styleCombo->addItem(style);

   140 

   141     int styleIndex = styleCombo->findText(currentItem);

   142 

   143     if (styleIndex == -1)

   144         styleCombo->setCurrentIndex(0);

   145     else

   146         styleCombo->setCurrentIndex(styleIndex);

   147 }

   148 //! [8]

   149 

   150 void MainWindow::findSizes(const QFont &font)

   151 {

   152     QFontDatabase fontDatabase;

   153     QString currentSize = sizeCombo->currentText();

   154     sizeCombo->blockSignals(true);

   155     sizeCombo->clear();

   156 

   157     int size;

   158     if(fontDatabase.isSmoothlyScalable(font.family(), fontDatabase.styleString(font))) {

   159         foreach(size, QFontDatabase::standardSizes()) {

   160             sizeCombo->addItem(QVariant(size).toString());

   161             sizeCombo->setEditable(true);

   162         }

   163 

   164     } else {

   165         foreach(size, fontDatabase.smoothSizes(font.family(), fontDatabase.styleString(font))) {

   166             sizeCombo->addItem(QVariant(size).toString());

   167             sizeCombo->setEditable(false);

   168         }

   169     }

   170 

   171     sizeCombo->blockSignals(false);

   172 

   173     int sizeIndex = sizeCombo->findText(currentSize);

   174 

   175     if(sizeIndex == -1)

   176         sizeCombo->setCurrentIndex(qMax(0, sizeCombo->count() / 3));

   177     else

   178         sizeCombo->setCurrentIndex(sizeIndex);

   179 }

   180 

   181 //! [9]

   182 void MainWindow::insertCharacter(const QString &character)

   183 {

   184     lineEdit->insert(character);

   185 }

   186 //! [9]

   187 

   188 //! [10]

   189 void MainWindow::updateClipboard()

   190 {

   191 //! [11]

   192     clipboard->setText(lineEdit->text(), QClipboard::Clipboard);

   193 //! [11]

   194     clipboard->setText(lineEdit->text(), QClipboard::Selection);

   195 }

   196 //! [10]