diff options
Diffstat (limited to 'examples/painting/fontsampler')
| -rw-r--r-- | examples/painting/fontsampler/fontsampler.pro | 10 | ||||
| -rw-r--r-- | examples/painting/fontsampler/main.cpp | 52 | ||||
| -rw-r--r-- | examples/painting/fontsampler/mainwindow.cpp | 373 | ||||
| -rw-r--r-- | examples/painting/fontsampler/mainwindow.h | 83 | ||||
| -rw-r--r-- | examples/painting/fontsampler/mainwindowbase.ui | 140 |
5 files changed, 658 insertions, 0 deletions
diff --git a/examples/painting/fontsampler/fontsampler.pro b/examples/painting/fontsampler/fontsampler.pro new file mode 100644 index 0000000..8b63752 --- /dev/null +++ b/examples/painting/fontsampler/fontsampler.pro @@ -0,0 +1,10 @@ +FORMS = mainwindowbase.ui +HEADERS = mainwindow.h +SOURCES = main.cpp \ + mainwindow.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/painting/fontsampler +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS fontsampler.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/painting/fontsampler +INSTALLS += target sources diff --git a/examples/painting/fontsampler/main.cpp b/examples/painting/fontsampler/main.cpp new file mode 100644 index 0000000..1d51376 --- /dev/null +++ b/examples/painting/fontsampler/main.cpp @@ -0,0 +1,52 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> + +#include "mainwindow.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + MainWindow window; + window.show(); + return app.exec(); +} diff --git a/examples/painting/fontsampler/mainwindow.cpp b/examples/painting/fontsampler/mainwindow.cpp new file mode 100644 index 0000000..424f175 --- /dev/null +++ b/examples/painting/fontsampler/mainwindow.cpp @@ -0,0 +1,373 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "mainwindow.h" + +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent) +{ + setupUi(this); + + sampleSizes << 32 << 24 << 16 << 14 << 12 << 8 << 4 << 2 << 1; + markedCount = 0; + setupFontTree(); + + connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit())); + connect(fontTree, SIGNAL(currentItemChanged(QTreeWidgetItem *, QTreeWidgetItem *)), + this, SLOT(showFont(QTreeWidgetItem *))); + connect(fontTree, SIGNAL(itemChanged(QTreeWidgetItem *, int)), + this, SLOT(updateStyles(QTreeWidgetItem *, int))); + + fontTree->setItemSelected(fontTree->topLevelItem(0), true); + showFont(fontTree->topLevelItem(0)); +} + +void MainWindow::setupFontTree() +{ + QFontDatabase database; + fontTree->setColumnCount(1); + fontTree->setHeaderLabels(QStringList() << tr("Font")); + + foreach (QString family, database.families()) { + const QStringList styles = database.styles(family); + if (styles.isEmpty()) + continue; + + QTreeWidgetItem *familyItem = new QTreeWidgetItem(fontTree); + familyItem->setText(0, family); + familyItem->setCheckState(0, Qt::Unchecked); + + foreach (QString style, styles) { + QTreeWidgetItem *styleItem = new QTreeWidgetItem(familyItem); + styleItem->setText(0, style); + styleItem->setCheckState(0, Qt::Unchecked); + styleItem->setData(0, Qt::UserRole, + QVariant(database.weight(family, style))); + styleItem->setData(0, Qt::UserRole + 1, + QVariant(database.italic(family, style))); + } + } +} + +void MainWindow::on_clearAction_triggered() +{ + QTreeWidgetItem *currentItem = fontTree->currentItem(); + foreach (QTreeWidgetItem *item, fontTree->selectedItems()) + fontTree->setItemSelected(item, false); + fontTree->setItemSelected(currentItem, true); +} + +void MainWindow::on_markAction_triggered() +{ + markUnmarkFonts(Qt::Checked); +} + +void MainWindow::on_unmarkAction_triggered() +{ + markUnmarkFonts(Qt::Unchecked); +} + +void MainWindow::markUnmarkFonts(Qt::CheckState state) +{ + QList<QTreeWidgetItem *> items = fontTree->selectedItems(); + foreach (QTreeWidgetItem *item, items) { + if (item->checkState(0) != state) + item->setCheckState(0, state); + } +} + +void MainWindow::showFont(QTreeWidgetItem *item) +{ + if (!item) + return; + + QString family; + QString style; + int weight; + bool italic; + + if (item->parent()) { + family = item->parent()->text(0); + style = item->text(0); + weight = item->data(0, Qt::UserRole).toInt(); + italic = item->data(0, Qt::UserRole + 1).toBool(); + } else { + family = item->text(0); + style = item->child(0)->text(0); + weight = item->child(0)->data(0, Qt::UserRole).toInt(); + italic = item->child(0)->data(0, Qt::UserRole + 1).toBool(); + } + + QString oldText = textEdit->toPlainText().trimmed(); + bool modified = textEdit->document()->isModified(); + textEdit->clear(); + textEdit->document()->setDefaultFont(QFont(family, 32, weight, italic)); + + QTextCursor cursor = textEdit->textCursor(); + QTextBlockFormat blockFormat; + blockFormat.setAlignment(Qt::AlignCenter); + cursor.insertBlock(blockFormat); + + if (modified) + cursor.insertText(QString(oldText)); + else + cursor.insertText(QString("%1 %2").arg(family).arg(style)); + + textEdit->document()->setModified(modified); +} + +void MainWindow::updateStyles(QTreeWidgetItem *item, int column) +{ + if (!item || column != 0) + return; + + Qt::CheckState state = item->checkState(0); + QTreeWidgetItem *parent = item->parent(); + + if (parent) { + + // Only count style items. + if (state == Qt::Checked) + ++markedCount; + else + --markedCount; + + if (state == Qt::Checked && + parent->checkState(0) == Qt::Unchecked) { + // Mark parent items when child items are checked. + parent->setCheckState(0, Qt::Checked); + + } else if (state == Qt::Unchecked && + parent->checkState(0) == Qt::Checked) { + + bool marked = false; + for (int row = 0; row < parent->childCount(); ++row) { + if (parent->child(row)->checkState(0) == Qt::Checked) { + marked = true; + break; + } + } + // Unmark parent items when all child items are unchecked. + if (!marked) + parent->setCheckState(0, Qt::Unchecked); + } + } else { + int row; + int number = 0; + for (row = 0; row < item->childCount(); ++row) { + if (item->child(row)->checkState(0) == Qt::Checked) + ++number; + } + + // Mark/unmark all child items when marking/unmarking top-level + // items. + if (state == Qt::Checked && number == 0) { + for (row = 0; row < item->childCount(); ++row) { + if (item->child(row)->checkState(0) == Qt::Unchecked) + item->child(row)->setCheckState(0, Qt::Checked); + } + } else if (state == Qt::Unchecked && number > 0) { + for (row = 0; row < item->childCount(); ++row) { + if (item->child(row)->checkState(0) == Qt::Checked) + item->child(row)->setCheckState(0, Qt::Unchecked); + } + } + } + + printAction->setEnabled(markedCount > 0); + printPreviewAction->setEnabled(markedCount > 0); +} + +void MainWindow::on_printAction_triggered() +{ + pageMap = currentPageMap(); + + if (pageMap.count() == 0) + return; + + QPrinter printer(QPrinter::HighResolution); + QPrintDialog dialog(&printer, this); + if (dialog.exec() != QDialog::Accepted) + return; + + int from = printer.fromPage(); + int to = printer.toPage(); + if (from <= 0 && to <= 0) + printer.setFromTo(1, pageMap.keys().count()); + + printDocument(&printer); +} + +void MainWindow::printDocument(QPrinter *printer) +{ + printer->setFromTo(1, pageMap.count()); + + QProgressDialog progress(tr("Preparing font samples..."), tr("&Cancel"), + 0, pageMap.count(), this); + progress.setWindowModality(Qt::ApplicationModal); + progress.setWindowTitle(tr("Font Sampler")); + progress.setMinimum(printer->fromPage() - 1); + progress.setMaximum(printer->toPage()); + + QPainter painter; + painter.begin(printer); + bool firstPage = true; + + for (int page = printer->fromPage(); page <= printer->toPage(); ++page) { + + if (!firstPage) + printer->newPage(); + + qApp->processEvents(); + if (progress.wasCanceled()) + break; + + printPage(page - 1, &painter, printer); + progress.setValue(page); + firstPage = false; + } + + painter.end(); +} + +void MainWindow::on_printPreviewAction_triggered() +{ + pageMap = currentPageMap(); + + if (pageMap.count() == 0) + return; + + QPrinter printer(QPrinter::HighResolution); + QPrintPreviewDialog preview(&printer, this); + connect(&preview, SIGNAL(paintRequested(QPrinter *)), + this, SLOT(printDocument(QPrinter *))); + preview.exec(); +} + +QMap<QString, StyleItems> MainWindow::currentPageMap() +{ + QMap<QString, StyleItems> pageMap; + + for (int row = 0; row < fontTree->topLevelItemCount(); ++row) { + QTreeWidgetItem *familyItem = fontTree->topLevelItem(row); + QString family; + + if (familyItem->checkState(0) == Qt::Checked) { + family = familyItem->text(0); + pageMap[family] = StyleItems(); + } + + for (int childRow = 0; childRow < familyItem->childCount(); ++childRow) { + QTreeWidgetItem *styleItem = familyItem->child(childRow); + if (styleItem->checkState(0) == Qt::Checked) + pageMap[family].append(styleItem); + } + } + + return pageMap; +} + +void MainWindow::printPage(int index, QPainter *painter, QPrinter *printer) +{ + QString family = pageMap.keys()[index]; + StyleItems items = pageMap[family]; + + // Find the dimensions of the text on each page. + qreal width = 0.0; + qreal height = 0.0; + foreach (QTreeWidgetItem *item, items) { + QString style = item->text(0); + int weight = item->data(0, Qt::UserRole).toInt(); + bool italic = item->data(0, Qt::UserRole + 1).toBool(); + + // Calculate the maximum width and total height of the text. + foreach (int size, sampleSizes) { + QFont font(family, size, weight, italic); + font = QFont(font, painter->device()); + QFontMetricsF fontMetrics(font); + QRectF rect = fontMetrics.boundingRect( + QString("%1 %2").arg(family).arg(style)); + width = qMax(rect.width(), width); + height += rect.height(); + } + } + + qreal xScale = printer->pageRect().width() / width; + qreal yScale = printer->pageRect().height() / height; + qreal scale = qMin(xScale, yScale); + + qreal remainingHeight = printer->pageRect().height()/scale - height; + qreal spaceHeight = (remainingHeight/4.0) / (items.count() + 1); + qreal interLineHeight = (remainingHeight/4.0) / (sampleSizes.count() * items.count()); + + painter->save(); + painter->translate(printer->pageRect().width()/2.0, printer->pageRect().height()/2.0); + painter->scale(scale, scale); + painter->setBrush(QBrush(Qt::black)); + + qreal x = -width/2.0; + qreal y = -height/2.0 - remainingHeight/4.0 + spaceHeight; + + foreach (QTreeWidgetItem *item, items) { + QString style = item->text(0); + int weight = item->data(0, Qt::UserRole).toInt(); + bool italic = item->data(0, Qt::UserRole + 1).toBool(); + + // Draw each line of text. + foreach (int size, sampleSizes) { + QFont font(family, size, weight, italic); + font = QFont(font, painter->device()); + QFontMetricsF fontMetrics(font); + QRectF rect = fontMetrics.boundingRect(QString("%1 %2").arg( + font.family()).arg(style)); + y += rect.height(); + painter->setFont(font); + painter->drawText(QPointF(x, y), + QString("%1 %2").arg(family).arg(style)); + y += interLineHeight; + } + y += spaceHeight; + } + + painter->restore(); +} diff --git a/examples/painting/fontsampler/mainwindow.h b/examples/painting/fontsampler/mainwindow.h new file mode 100644 index 0000000..25d7730 --- /dev/null +++ b/examples/painting/fontsampler/mainwindow.h @@ -0,0 +1,83 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include "ui_mainwindowbase.h" + +QT_BEGIN_NAMESPACE +class QTextEdit; +class QTreeWidget; +class QTreeWidgetItem; +QT_END_NAMESPACE + +typedef QList<QTreeWidgetItem *> StyleItems; + +class MainWindow : public QMainWindow, private Ui::MainWindowBase +{ + Q_OBJECT + +public: + MainWindow(QWidget *parent = 0); + +public slots: + void on_clearAction_triggered(); + void on_markAction_triggered(); + void on_printAction_triggered(); + void on_printPreviewAction_triggered(); + void on_unmarkAction_triggered(); + void printDocument(QPrinter *printer); + void printPage(int index, QPainter *painter, QPrinter *printer); + void showFont(QTreeWidgetItem *item); + void updateStyles(QTreeWidgetItem *item, int column); + +private: + QMap<QString, StyleItems> currentPageMap(); + void markUnmarkFonts(Qt::CheckState state); + void setupFontTree(); + + QList<int> sampleSizes; + QMap<QString, StyleItems> pageMap; + int markedCount; +}; + +#endif diff --git a/examples/painting/fontsampler/mainwindowbase.ui b/examples/painting/fontsampler/mainwindowbase.ui new file mode 100644 index 0000000..6545b34 --- /dev/null +++ b/examples/painting/fontsampler/mainwindowbase.ui @@ -0,0 +1,140 @@ +<ui version="4.0" > + <author></author> + <comment></comment> + <exportmacro></exportmacro> + <class>MainWindowBase</class> + <widget class="QMainWindow" name="MainWindowBase" > + <property name="geometry" > + <rect> + <x>0</x> + <y>0</y> + <width>800</width> + <height>345</height> + </rect> + </property> + <property name="windowTitle" > + <string>Font Sampler</string> + </property> + <widget class="QWidget" name="centralwidget" > + <layout class="QVBoxLayout" > + <property name="margin" > + <number>9</number> + </property> + <property name="spacing" > + <number>6</number> + </property> + <item> + <widget class="QTextEdit" name="textEdit" /> + </item> + </layout> + </widget> + <widget class="QMenuBar" name="menubar" > + <property name="geometry" > + <rect> + <x>0</x> + <y>0</y> + <width>800</width> + <height>24</height> + </rect> + </property> + <widget class="QMenu" name="menu_Selection" > + <property name="title" > + <string>&Selection</string> + </property> + <addaction name="markAction" /> + <addaction name="unmarkAction" /> + <addaction name="clearAction" /> + </widget> + <widget class="QMenu" name="menu_File" > + <property name="title" > + <string>&File</string> + </property> + <addaction name="printPreviewAction" /> + <addaction name="printAction" /> + <addaction name="quitAction" /> + </widget> + <addaction name="menu_File" /> + <addaction name="menu_Selection" /> + </widget> + <widget class="QStatusBar" name="statusbar" /> + <widget class="QDockWidget" name="dockWidget" > + <property name="features" > + <set>QDockWidget::DockWidgetFloatable|QDockWidget::DockWidgetMovable|QDockWidget::NoDockWidgetFeatures</set> + </property> + <property name="windowTitle" > + <string>Available Fonts</string> + </property> + <attribute name="dockWidgetArea" > + <number>1</number> + </attribute> + <widget class="QWidget" name="dockWidgetContents" > + <layout class="QVBoxLayout" > + <property name="margin" > + <number>9</number> + </property> + <property name="spacing" > + <number>6</number> + </property> + <item> + <widget class="QTreeWidget" name="fontTree" > + <property name="selectionMode" > + <enum>QAbstractItemView::ExtendedSelection</enum> + </property> + </widget> + </item> + </layout> + </widget> + </widget> + <action name="printAction" > + <property name="enabled" > + <bool>false</bool> + </property> + <property name="text" > + <string>&Print...</string> + </property> + <property name="shortcut" > + <string>Ctrl+P</string> + </property> + </action> + <action name="quitAction" > + <property name="text" > + <string>E&xit</string> + </property> + <property name="shortcut" > + <string>Ctrl+Q</string> + </property> + </action> + <action name="markAction" > + <property name="text" > + <string>&Mark</string> + </property> + <property name="shortcut" > + <string>Ctrl+M</string> + </property> + </action> + <action name="unmarkAction" > + <property name="text" > + <string>&Unmark</string> + </property> + <property name="shortcut" > + <string>Ctrl+U</string> + </property> + </action> + <action name="clearAction" > + <property name="text" > + <string>&Clear</string> + </property> + </action> + <action name="printPreviewAction" > + <property name="enabled" > + <bool>false</bool> + </property> + <property name="text" > + <string>Print Preview...</string> + </property> + </action> + </widget> + <pixmapfunction></pixmapfunction> + <resources/> + <connections/> +</ui> |