Файл примера mainwindow.cppwidgets/charactermap/mainwindow.cpp/**************************************************************************** ** ** 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" 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); findStyles(fontCombo->currentFont()); findSizes(fontCombo->currentFont()); lineEdit = new QLineEdit; QPushButton *clipboardButton = new QPushButton(tr("&To clipboard")); clipboard = QApplication::clipboard(); 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))); connect(characterWidget, SIGNAL(characterSelected(QString)), this, SLOT(insertCharacter(QString))); connect(clipboardButton, SIGNAL(clicked()), this, SLOT(updateClipboard())); connect(fontMerging, SIGNAL(toggled(bool)), characterWidget, SLOT(updateFontMerging(bool))); 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")); } void MainWindow::findStyles(const QFont &font) { QFontDatabase fontDatabase; QString currentItem = styleCombo->currentText(); styleCombo->clear(); 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); } 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); } void MainWindow::insertCharacter(const QString &character) { lineEdit->insert(character); } void MainWindow::updateClipboard() { clipboard->setText(lineEdit->text(), QClipboard::Clipboard); clipboard->setText(lineEdit->text(), QClipboard::Selection); } |
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