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Diffstat (limited to 'examples/widgets/charactermap/mainwindow.cpp')
| -rw-r--r-- | examples/widgets/charactermap/mainwindow.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/examples/widgets/charactermap/mainwindow.cpp b/examples/widgets/charactermap/mainwindow.cpp new file mode 100644 index 0000000000..bdff127423 --- /dev/null +++ b/examples/widgets/charactermap/mainwindow.cpp @@ -0,0 +1,195 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "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 Nokia Corporation and its Subsidiary(-ies) 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "characterwidget.h" +#include "mainwindow.h" + +//! [0] +MainWindow::MainWindow() +{ + QWidget *centralWidget = new QWidget; + + QLabel *fontLabel = new QLabel(tr("Font:")); + fontCombo = new QFontComboBox; + QLabel *sizeLabel = new QLabel(tr("Size:")); + sizeCombo = new QComboBox; + QLabel *styleLabel = new QLabel(tr("Style:")); + styleCombo = new QComboBox; + QLabel *fontMergingLabel = new QLabel(tr("Automatic Font Merging:")); + fontMerging = new QCheckBox; + fontMerging->setChecked(true); + + scrollArea = new QScrollArea; + characterWidget = new CharacterWidget; + scrollArea->setWidget(characterWidget); +//! [0] + +//! [1] + findStyles(fontCombo->currentFont()); +//! [1] + findSizes(fontCombo->currentFont()); + +//! [2] + lineEdit = new QLineEdit; + QPushButton *clipboardButton = new QPushButton(tr("&To clipboard")); +//! [2] + +//! [3] + clipboard = QApplication::clipboard(); +//! [3] + +//! [4] + connect(fontCombo, SIGNAL(currentFontChanged(QFont)), + this, SLOT(findStyles(QFont))); + connect(fontCombo, SIGNAL(currentFontChanged(QFont)), + this, SLOT(findSizes(QFont))); + connect(fontCombo, SIGNAL(currentFontChanged(QFont)), + characterWidget, SLOT(updateFont(QFont))); + connect(sizeCombo, SIGNAL(currentIndexChanged(QString)), + characterWidget, SLOT(updateSize(QString))); + connect(styleCombo, SIGNAL(currentIndexChanged(QString)), + characterWidget, SLOT(updateStyle(QString))); +//! [4] //! [5] + connect(characterWidget, SIGNAL(characterSelected(QString)), + this, SLOT(insertCharacter(QString))); + connect(clipboardButton, SIGNAL(clicked()), this, SLOT(updateClipboard())); +//! [5] + connect(fontMerging, SIGNAL(toggled(bool)), characterWidget, SLOT(updateFontMerging(bool))); + +//! [6] + QHBoxLayout *controlsLayout = new QHBoxLayout; + controlsLayout->addWidget(fontLabel); + controlsLayout->addWidget(fontCombo, 1); + controlsLayout->addWidget(sizeLabel); + controlsLayout->addWidget(sizeCombo, 1); + controlsLayout->addWidget(styleLabel); + controlsLayout->addWidget(styleCombo, 1); + controlsLayout->addWidget(fontMergingLabel); + controlsLayout->addWidget(fontMerging, 1); + controlsLayout->addStretch(1); + + QHBoxLayout *lineLayout = new QHBoxLayout; + lineLayout->addWidget(lineEdit, 1); + lineLayout->addSpacing(12); + lineLayout->addWidget(clipboardButton); + + QVBoxLayout *centralLayout = new QVBoxLayout; + centralLayout->addLayout(controlsLayout); + centralLayout->addWidget(scrollArea, 1); + centralLayout->addSpacing(4); + centralLayout->addLayout(lineLayout); + centralWidget->setLayout(centralLayout); + + setCentralWidget(centralWidget); + setWindowTitle(tr("Character Map")); +} +//! [6] + +//! [7] +void MainWindow::findStyles(const QFont &font) +{ + QFontDatabase fontDatabase; + QString currentItem = styleCombo->currentText(); + styleCombo->clear(); +//! [7] + +//! [8] + QString style; + foreach (style, fontDatabase.styles(font.family())) + styleCombo->addItem(style); + + int styleIndex = styleCombo->findText(currentItem); + + if (styleIndex == -1) + styleCombo->setCurrentIndex(0); + else + styleCombo->setCurrentIndex(styleIndex); +} +//! [8] + +void MainWindow::findSizes(const QFont &font) +{ + QFontDatabase fontDatabase; + QString currentSize = sizeCombo->currentText(); + sizeCombo->blockSignals(true); + sizeCombo->clear(); + + int size; + if(fontDatabase.isSmoothlyScalable(font.family(), fontDatabase.styleString(font))) { + foreach(size, QFontDatabase::standardSizes()) { + sizeCombo->addItem(QVariant(size).toString()); + sizeCombo->setEditable(true); + } + + } else { + foreach(size, fontDatabase.smoothSizes(font.family(), fontDatabase.styleString(font))) { + sizeCombo->addItem(QVariant(size).toString()); + sizeCombo->setEditable(false); + } + } + + sizeCombo->blockSignals(false); + + int sizeIndex = sizeCombo->findText(currentSize); + + if(sizeIndex == -1) + sizeCombo->setCurrentIndex(qMax(0, sizeCombo->count() / 3)); + else + sizeCombo->setCurrentIndex(sizeIndex); +} + +//! [9] +void MainWindow::insertCharacter(const QString &character) +{ + lineEdit->insert(character); +} +//! [9] + +//! [10] +void MainWindow::updateClipboard() +{ +//! [11] + clipboard->setText(lineEdit->text(), QClipboard::Clipboard); +//! [11] + clipboard->setText(lineEdit->text(), QClipboard::Selection); +} +//! [10] |