summaryrefslogtreecommitdiffstats
path: root/examples/painting/fontsampler/mainwindow.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'examples/painting/fontsampler/mainwindow.cpp')
-rw-r--r--examples/painting/fontsampler/mainwindow.cpp380
1 files changed, 0 insertions, 380 deletions
diff --git a/examples/painting/fontsampler/mainwindow.cpp b/examples/painting/fontsampler/mainwindow.cpp
deleted file mode 100644
index ae45613abf..0000000000
--- a/examples/painting/fontsampler/mainwindow.cpp
+++ /dev/null
@@ -1,380 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** 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 <QtWidgets>
-#ifndef QT_NO_PRINTER
-#include <QPrinter>
-#include <QPrintDialog>
-#include <QPrintPreviewDialog>
-#endif
-
-#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);
-}
-
-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;
-}
-
-#ifndef QT_NO_PRINTER
-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();
-}
-
-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();
-}
-#endif