diff options
Diffstat (limited to 'tests/manual/examples/widgets/tools/plugandpaint/app')
10 files changed, 880 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/CMakeLists.txt b/tests/manual/examples/widgets/tools/plugandpaint/app/CMakeLists.txt new file mode 100644 index 0000000000..b4b6277e2a --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/CMakeLists.txt @@ -0,0 +1,36 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +qt_add_executable(plugandpaint + interfaces.h + main.cpp + mainwindow.cpp mainwindow.h + paintarea.cpp paintarea.h + plugindialog.cpp plugindialog.h +) + +set_target_properties(plugandpaint PROPERTIES + WIN32_EXECUTABLE TRUE + MACOSX_BUNDLE TRUE +) + +target_link_libraries(plugandpaint PRIVATE + Qt6::Widgets + pnp_basictools +) + +if(QT6_IS_SHARED_LIBS_BUILD) + # Build the shared plugin too when building this example target. + add_dependencies(plugandpaint pnp_extrafilters) +else() + # Link the extrafilters plugin if Qt is built statically. + target_link_libraries(plugandpaint PRIVATE + pnp_extrafilters + ) +endif() + +install(TARGETS plugandpaint + RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" + BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" + LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" +) diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/app.pro b/tests/manual/examples/widgets/tools/plugandpaint/app/app.pro new file mode 100644 index 0000000000..e5ff02ecf2 --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/app.pro @@ -0,0 +1,37 @@ +#! [0] +TARGET = plugandpaint +DESTDIR = .. + +QT += widgets + +HEADERS = interfaces.h \ + mainwindow.h \ + paintarea.h \ + plugindialog.h +SOURCES = main.cpp \ + mainwindow.cpp \ + paintarea.cpp \ + plugindialog.cpp + +LIBS = -L../plugins + +macx-xcode { + LIBS += -lpnp_basictools$($${QMAKE_XCODE_LIBRARY_SUFFIX_SETTING}) +} else { + android { + LIBS += -lpnp_basictools_$${QT_ARCH} + } else { + LIBS += -lpnp_basictools + } + if(!debug_and_release|build_pass):CONFIG(debug, debug|release) { + mac:LIBS = $$member(LIBS, 0) $$member(LIBS, 1)_debug + win32:LIBS = $$member(LIBS, 0) $$member(LIBS, 1)d + } +} +#! [0] + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/widgets/tools/plugandpaint +INSTALLS += target + +CONFIG += install_ok # Do not cargo-cult this! diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/interfaces.h b/tests/manual/examples/widgets/tools/plugandpaint/app/interfaces.h new file mode 100644 index 0000000000..9cd0e34fda --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/interfaces.h @@ -0,0 +1,76 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef INTERFACES_H +#define INTERFACES_H + +#include <QtPlugin> + +QT_BEGIN_NAMESPACE +class QImage; +class QPainter; +class QWidget; +class QPainterPath; +class QPoint; +class QRect; +class QString; +QT_END_NAMESPACE + +//! [0] +class BrushInterface +{ +public: + virtual ~BrushInterface() = default; + + virtual QStringList brushes() const = 0; + virtual QRect mousePress(const QString &brush, QPainter &painter, + const QPoint &pos) = 0; + virtual QRect mouseMove(const QString &brush, QPainter &painter, + const QPoint &oldPos, const QPoint &newPos) = 0; + virtual QRect mouseRelease(const QString &brush, QPainter &painter, + const QPoint &pos) = 0; +}; +//! [0] + +//! [1] +class ShapeInterface +{ +public: + virtual ~ShapeInterface() = default; + + virtual QStringList shapes() const = 0; + virtual QPainterPath generateShape(const QString &shape, + QWidget *parent) = 0; +}; +//! [1] + +//! [2] +class FilterInterface +{ +public: + virtual ~FilterInterface() = default; + + virtual QStringList filters() const = 0; + virtual QImage filterImage(const QString &filter, const QImage &image, + QWidget *parent) = 0; +}; +//! [2] + +QT_BEGIN_NAMESPACE +//! [3] //! [4] +#define BrushInterface_iid "org.qt-project.Qt.Examples.PlugAndPaint.BrushInterface/1.0" + +Q_DECLARE_INTERFACE(BrushInterface, BrushInterface_iid) +//! [3] + +#define ShapeInterface_iid "org.qt-project.Qt.Examples.PlugAndPaint.ShapeInterface/1.0" + +Q_DECLARE_INTERFACE(ShapeInterface, ShapeInterface_iid) +//! [5] +#define FilterInterface_iid "org.qt-project.Qt.Examples.PlugAndPaint.FilterInterface/1.0" + +Q_DECLARE_INTERFACE(FilterInterface, FilterInterface_iid) +//! [4] //! [5] +QT_END_NAMESPACE + +#endif diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/main.cpp b/tests/manual/examples/widgets/tools/plugandpaint/app/main.cpp new file mode 100644 index 0000000000..3fc647dcca --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/main.cpp @@ -0,0 +1,19 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +//! [0] +#include "mainwindow.h" + +#include <QApplication> +#include <QtPlugin> + +Q_IMPORT_PLUGIN(BasicToolsPlugin) + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + MainWindow window; + window.show(); + return app.exec(); +} +//! [0] diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/mainwindow.cpp b/tests/manual/examples/widgets/tools/plugandpaint/app/mainwindow.cpp new file mode 100644 index 0000000000..8e58ae4ba8 --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/mainwindow.cpp @@ -0,0 +1,282 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + + +#include "mainwindow.h" +#include "interfaces.h" +#include "paintarea.h" +#include "plugindialog.h" + +#include <QAction> +#include <QActionGroup> +#include <QApplication> +#include <QColorDialog> +#include <QFileDialog> +#include <QInputDialog> +#include <QMenu> +#include <QMenuBar> +#include <QMessageBox> +#include <QPluginLoader> +#include <QScrollArea> +#include <QTimer> + +MainWindow::MainWindow() : paintArea(new PaintArea) + , scrollArea(new QScrollArea) +{ + scrollArea->setBackgroundRole(QPalette::Dark); + scrollArea->setWidget(paintArea); + setCentralWidget(scrollArea); + + createActions(); + createMenus(); + loadPlugins(); + + setWindowTitle(tr("Plug & Paint")); + + if (!brushActionGroup->actions().isEmpty()) + brushActionGroup->actions().first()->trigger(); + + QTimer::singleShot(500, this, &MainWindow::aboutPlugins); +} + +void MainWindow::open() +{ + const QString fileName = QFileDialog::getOpenFileName(this, + tr("Open File"), + QDir::currentPath()); + if (!fileName.isEmpty()) { + if (!paintArea->openImage(fileName)) { + QMessageBox::information(this, tr("Plug & Paint"), + tr("Cannot load %1.").arg(fileName)); + return; + } + paintArea->adjustSize(); + } +} + +bool MainWindow::saveAs() +{ + const QString initialPath = QDir::currentPath() + "/untitled.png"; + + const QString fileName = QFileDialog::getSaveFileName(this, tr("Save As"), + initialPath); + if (fileName.isEmpty()) + return false; + + return paintArea->saveImage(fileName, "png"); +} + +void MainWindow::brushColor() +{ + const QColor newColor = QColorDialog::getColor(paintArea->brushColor()); + if (newColor.isValid()) + paintArea->setBrushColor(newColor); +} + +void MainWindow::brushWidth() +{ + bool ok; + const int newWidth = QInputDialog::getInt(this, tr("Plug & Paint"), + tr("Select brush width:"), + paintArea->brushWidth(), + 1, 50, 1, &ok); + if (ok) + paintArea->setBrushWidth(newWidth); +} + +//! [0] +void MainWindow::changeBrush() +{ + auto action = qobject_cast<QAction *>(sender()); + if (!action) + return; + auto iBrush = qobject_cast<BrushInterface *>(action->parent()); + if (!iBrush) + return; + const QString brush = action->text(); + + paintArea->setBrush(iBrush, brush); +} +//! [0] + +//! [1] +void MainWindow::insertShape() +{ + auto action = qobject_cast<QAction *>(sender()); + if (!action) + return; + auto iShape = qobject_cast<ShapeInterface *>(action->parent()); + if (!iShape) + return; + + const QPainterPath path = iShape->generateShape(action->text(), this); + if (!path.isEmpty()) + paintArea->insertShape(path); +} +//! [1] + +//! [2] +void MainWindow::applyFilter() +{ + auto action = qobject_cast<QAction *>(sender()); + if (!action) + return; + auto iFilter = qobject_cast<FilterInterface *>(action->parent()); + if (!iFilter) + return; + + const QImage image = iFilter->filterImage(action->text(), paintArea->image(), + this); + paintArea->setImage(image); +} +//! [2] + +void MainWindow::about() +{ + QMessageBox::about(this, tr("About Plug & Paint"), + tr("The <b>Plug & Paint</b> example demonstrates how to write Qt " + "applications that can be extended through plugins.")); +} + +//! [3] +void MainWindow::aboutPlugins() +{ + PluginDialog dialog(pluginsDir.path(), pluginFileNames, this); + dialog.exec(); +} +//! [3] + +void MainWindow::createActions() +{ + openAct = new QAction(tr("&Open..."), this); + openAct->setShortcuts(QKeySequence::Open); + connect(openAct, &QAction::triggered, this, &MainWindow::open); + + saveAsAct = new QAction(tr("&Save As..."), this); + saveAsAct->setShortcuts(QKeySequence::SaveAs); + connect(saveAsAct, &QAction::triggered, this, &MainWindow::saveAs); + + exitAct = new QAction(tr("E&xit"), this); + exitAct->setShortcuts(QKeySequence::Quit); + connect(exitAct, &QAction::triggered, this, &MainWindow::close); + + brushColorAct = new QAction(tr("&Brush Color..."), this); + connect(brushColorAct, &QAction::triggered, this, &MainWindow::brushColor); + + brushWidthAct = new QAction(tr("&Brush Width..."), this); + connect(brushWidthAct, &QAction::triggered, this, &MainWindow::brushWidth); + + brushActionGroup = new QActionGroup(this); + + aboutAct = new QAction(tr("&About"), this); + connect(aboutAct, &QAction::triggered, this, &MainWindow::about); + + aboutQtAct = new QAction(tr("About &Qt"), this); + connect(aboutQtAct, &QAction::triggered, qApp, &QApplication::aboutQt); + + aboutPluginsAct = new QAction(tr("About &Plugins"), this); + connect(aboutPluginsAct, &QAction::triggered, this, &MainWindow::aboutPlugins); +} + +void MainWindow::createMenus() +{ + fileMenu = menuBar()->addMenu(tr("&File")); + fileMenu->addAction(openAct); + fileMenu->addAction(saveAsAct); + fileMenu->addSeparator(); + fileMenu->addAction(exitAct); + + brushMenu = menuBar()->addMenu(tr("&Brush")); + brushMenu->addAction(brushColorAct); + brushMenu->addAction(brushWidthAct); + brushMenu->addSeparator(); + + shapesMenu = menuBar()->addMenu(tr("&Shapes")); + + filterMenu = menuBar()->addMenu(tr("&Filter")); + + menuBar()->addSeparator(); + + helpMenu = menuBar()->addMenu(tr("&Help")); + helpMenu->addAction(aboutAct); + helpMenu->addAction(aboutQtAct); + helpMenu->addAction(aboutPluginsAct); +} + +//! [4] +void MainWindow::loadPlugins() +{ + const auto staticInstances = QPluginLoader::staticInstances(); + for (QObject *plugin : staticInstances) + populateMenus(plugin); +//! [4] //! [5] + + pluginsDir = QDir(QCoreApplication::applicationDirPath()); + +#if defined(Q_OS_WIN) + if (pluginsDir.dirName().toLower() == "debug" || pluginsDir.dirName().toLower() == "release") + pluginsDir.cdUp(); +#elif defined(Q_OS_MAC) + if (pluginsDir.dirName() == "MacOS") { + pluginsDir.cdUp(); + pluginsDir.cdUp(); + pluginsDir.cdUp(); + } +#endif + pluginsDir.cd("plugins"); +//! [5] + +//! [6] + const auto entryList = pluginsDir.entryList(QDir::Files); + for (const QString &fileName : entryList) { + QPluginLoader loader(pluginsDir.absoluteFilePath(fileName)); + QObject *plugin = loader.instance(); + if (plugin) { + populateMenus(plugin); + pluginFileNames += fileName; +//! [6] //! [7] + } +//! [7] //! [8] + } +//! [8] + +//! [9] + brushMenu->setEnabled(!brushActionGroup->actions().isEmpty()); + shapesMenu->setEnabled(!shapesMenu->actions().isEmpty()); + filterMenu->setEnabled(!filterMenu->actions().isEmpty()); +} +//! [9] + +//! [10] +void MainWindow::populateMenus(QObject *plugin) +{ + auto iBrush = qobject_cast<BrushInterface *>(plugin); + if (iBrush) + addToMenu(plugin, iBrush->brushes(), brushMenu, &MainWindow::changeBrush, + brushActionGroup); + + auto iShape = qobject_cast<ShapeInterface *>(plugin); + if (iShape) + addToMenu(plugin, iShape->shapes(), shapesMenu, &MainWindow::insertShape); + + auto iFilter = qobject_cast<FilterInterface *>(plugin); + if (iFilter) + addToMenu(plugin, iFilter->filters(), filterMenu, &MainWindow::applyFilter); +} +//! [10] + +void MainWindow::addToMenu(QObject *plugin, const QStringList &texts, + QMenu *menu, Member member, + QActionGroup *actionGroup) +{ + for (const QString &text : texts) { + auto action = new QAction(text, plugin); + connect(action, &QAction::triggered, this, member); + menu->addAction(action); + + if (actionGroup) { + action->setCheckable(true); + actionGroup->addAction(action); + } + } +} diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/mainwindow.h b/tests/manual/examples/widgets/tools/plugandpaint/app/mainwindow.h new file mode 100644 index 0000000000..bc09471ba5 --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/mainwindow.h @@ -0,0 +1,68 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QDir> +#include <QMainWindow> +#include <QStringList> + +QT_BEGIN_NAMESPACE +class QAction; +class QActionGroup; +class QMenu; +class QScrollArea; +QT_END_NAMESPACE +class PaintArea; + +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(); + +private slots: + void open(); + bool saveAs(); + void brushColor(); + void brushWidth(); + void changeBrush(); + void insertShape(); + void applyFilter(); + void about(); + void aboutPlugins(); + +private: + typedef void (MainWindow::*Member)(); + + void createActions(); + void createMenus(); + void loadPlugins(); + void populateMenus(QObject *plugin); + void addToMenu(QObject *plugin, const QStringList &texts, QMenu *menu, + Member member, QActionGroup *actionGroup = nullptr); + + PaintArea *paintArea = nullptr; + QScrollArea *scrollArea = nullptr; + QDir pluginsDir; + QStringList pluginFileNames; + + QMenu *fileMenu = nullptr; + QMenu *brushMenu = nullptr; + QMenu *shapesMenu = nullptr; + QMenu *filterMenu = nullptr; + QMenu *helpMenu = nullptr; + QActionGroup *brushActionGroup = nullptr; + QAction *openAct = nullptr; + QAction *saveAsAct = nullptr; + QAction *exitAct = nullptr; + QAction *brushWidthAct = nullptr; + QAction *brushColorAct = nullptr; + QAction *aboutAct = nullptr; + QAction *aboutQtAct = nullptr; + QAction *aboutPluginsAct = nullptr; +}; + +#endif diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/paintarea.cpp b/tests/manual/examples/widgets/tools/plugandpaint/app/paintarea.cpp new file mode 100644 index 0000000000..3596f7979c --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/paintarea.cpp @@ -0,0 +1,152 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + + +#include "paintarea.h" +#include "interfaces.h" + +#include <QMouseEvent> +#include <QPainter> + +PaintArea::PaintArea(QWidget *parent) : QWidget(parent) +{ + setAttribute(Qt::WA_StaticContents); + setAttribute(Qt::WA_OpaquePaintEvent); + + theImage.fill(qRgb(255, 255, 255)); +} + +bool PaintArea::openImage(const QString &fileName) +{ + QImage image; + if (!image.load(fileName)) + return false; + + setImage(image); + return true; +} + +bool PaintArea::saveImage(const QString &fileName, const char *fileFormat) +{ + return theImage.save(fileName, fileFormat); +} + +void PaintArea::setImage(const QImage &image) +{ + theImage = image.convertToFormat(QImage::Format_RGB32); + update(); + updateGeometry(); +} + +void PaintArea::insertShape(const QPainterPath &path) +{ + pendingPath = path; +#ifndef QT_NO_CURSOR + setCursor(Qt::CrossCursor); +#endif +} + +void PaintArea::setBrushColor(const QColor &color) +{ + this->color = color; +} + +void PaintArea::setBrushWidth(int width) +{ + thickness = width; +} + +//! [0] +void PaintArea::setBrush(BrushInterface *brushInterface, const QString &brush) +{ + this->brushInterface = brushInterface; + this->brush = brush; +} +//! [0] + +QSize PaintArea::sizeHint() const +{ + return theImage.size(); +} + +void PaintArea::paintEvent(QPaintEvent * /* event */) +{ + QPainter painter(this); + painter.drawImage(QPoint(0, 0), theImage); +} + +void PaintArea::mousePressEvent(QMouseEvent *event) +{ + if (event->button() == Qt::LeftButton) { + if (!pendingPath.isEmpty()) { + QPainter painter(&theImage); + setupPainter(painter); + + const QRectF boundingRect = pendingPath.boundingRect(); + QLinearGradient gradient(boundingRect.topRight(), + boundingRect.bottomLeft()); + gradient.setColorAt(0.0, QColor(color.red(), color.green(), + color.blue(), 63)); + gradient.setColorAt(1.0, QColor(color.red(), color.green(), + color.blue(), 191)); + painter.setBrush(gradient); + painter.translate(event->position().toPoint() - boundingRect.center()); + painter.drawPath(pendingPath); + + pendingPath = QPainterPath(); +#ifndef QT_NO_CURSOR + unsetCursor(); +#endif + update(); + } else { + if (brushInterface) { + QPainter painter(&theImage); + setupPainter(painter); + const QRect rect = brushInterface->mousePress(brush, painter, + event->position().toPoint()); + update(rect); + } + + lastPos = event->position().toPoint(); + } + } +} + +//! [1] +void PaintArea::mouseMoveEvent(QMouseEvent *event) +{ + if ((event->buttons() & Qt::LeftButton) && lastPos != QPoint(-1, -1)) { + if (brushInterface) { + QPainter painter(&theImage); + setupPainter(painter); + const QRect rect = brushInterface->mouseMove(brush, painter, lastPos, + event->position().toPoint()); + update(rect); + } + + lastPos = event->position().toPoint(); + } +} +//! [1] + +void PaintArea::mouseReleaseEvent(QMouseEvent *event) +{ + if (event->button() == Qt::LeftButton && lastPos != QPoint(-1, -1)) { + if (brushInterface) { + QPainter painter(&theImage); + setupPainter(painter); + QRect rect = brushInterface->mouseRelease(brush, painter, + event->position().toPoint()); + update(rect); + } + + lastPos = QPoint(-1, -1); + } +} + +void PaintArea::setupPainter(QPainter &painter) +{ + painter.setRenderHint(QPainter::Antialiasing, true); + painter.setPen(QPen(color, thickness, Qt::SolidLine, Qt::RoundCap, + Qt::RoundJoin)); +} diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/paintarea.h b/tests/manual/examples/widgets/tools/plugandpaint/app/paintarea.h new file mode 100644 index 0000000000..f24db0ba89 --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/paintarea.h @@ -0,0 +1,54 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef PAINTAREA_H +#define PAINTAREA_H + +#include <QColor> +#include <QImage> +#include <QPainterPath> +#include <QWidget> + +class BrushInterface; + +class PaintArea : public QWidget +{ + Q_OBJECT + +public: + PaintArea(QWidget *parent = nullptr); + + bool openImage(const QString &fileName); + bool saveImage(const QString &fileName, const char *fileFormat); + void setImage(const QImage &image); + void insertShape(const QPainterPath &path); + void setBrushColor(const QColor &color); + void setBrushWidth(int width); + void setBrush(BrushInterface *brushInterface, const QString &brush); + + QImage image() const { return theImage; } + QColor brushColor() const { return color; } + int brushWidth() const { return thickness; } + QSize sizeHint() const override; + +protected: + void paintEvent(QPaintEvent *event) override; + void mousePressEvent(QMouseEvent *event) override; + void mouseMoveEvent(QMouseEvent *event) override; + void mouseReleaseEvent(QMouseEvent *event) override; + +private: + void setupPainter(QPainter &painter); + + QImage theImage = {500, 400, QImage::Format_RGB32}; + QColor color = Qt::blue; + int thickness = 3; + + BrushInterface *brushInterface = nullptr; + QString brush; + QPoint lastPos = {-1, -1}; + + QPainterPath pendingPath; +}; + +#endif diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/plugindialog.cpp b/tests/manual/examples/widgets/tools/plugandpaint/app/plugindialog.cpp new file mode 100644 index 0000000000..2ff5c4b1e3 --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/plugindialog.cpp @@ -0,0 +1,118 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + + +#include "plugindialog.h" +#include "interfaces.h" + +#include <QDir> +#include <QGridLayout> +#include <QHeaderView> +#include <QLabel> +#include <QPluginLoader> +#include <QPushButton> +#include <QStringList> +#include <QTreeWidget> +#include <QTreeWidgetItem> + +PluginDialog::PluginDialog(const QString &path, const QStringList &fileNames, + QWidget *parent) : + QDialog(parent), + label(new QLabel), + treeWidget(new QTreeWidget), + okButton(new QPushButton(tr("OK"))) +{ + treeWidget->setAlternatingRowColors(false); + treeWidget->setSelectionMode(QAbstractItemView::NoSelection); + treeWidget->setColumnCount(1); + treeWidget->header()->hide(); + + okButton->setDefault(true); + + connect(okButton, &QAbstractButton::clicked, this, &QWidget::close); + + QGridLayout *mainLayout = new QGridLayout; + mainLayout->setColumnStretch(0, 1); + mainLayout->setColumnStretch(2, 1); + mainLayout->addWidget(label, 0, 0, 1, 3); + mainLayout->addWidget(treeWidget, 1, 0, 1, 3); + mainLayout->addWidget(okButton, 2, 1); + setLayout(mainLayout); + + interfaceIcon.addPixmap(style()->standardPixmap(QStyle::SP_DirOpenIcon), + QIcon::Normal, QIcon::On); + interfaceIcon.addPixmap(style()->standardPixmap(QStyle::SP_DirClosedIcon), + QIcon::Normal, QIcon::Off); + featureIcon.addPixmap(style()->standardPixmap(QStyle::SP_FileIcon)); + + setWindowTitle(tr("Plugin Information")); + findPlugins(path, fileNames); +} + +//! [0] +void PluginDialog::findPlugins(const QString &path, + const QStringList &fileNames) +{ + label->setText(tr("Plug & Paint found the following plugins\n" + "(looked in %1):") + .arg(QDir::toNativeSeparators(path))); + + const QDir dir(path); + + const auto staticInstances = QPluginLoader::staticInstances(); + for (QObject *plugin : staticInstances) + populateTreeWidget(plugin, tr("%1 (Static Plugin)") + .arg(plugin->metaObject()->className())); + + for (const QString &fileName : fileNames) { + QPluginLoader loader(dir.absoluteFilePath(fileName)); + QObject *plugin = loader.instance(); + if (plugin) + populateTreeWidget(plugin, fileName); + } +} +//! [0] + +//! [1] +void PluginDialog::populateTreeWidget(QObject *plugin, const QString &text) +{ + auto pluginItem = new QTreeWidgetItem(treeWidget); + pluginItem->setText(0, text); + pluginItem->setExpanded(true); + + QFont boldFont = pluginItem->font(0); + boldFont.setBold(true); + pluginItem->setFont(0, boldFont); + + if (plugin) { + auto iBrush = qobject_cast<BrushInterface *>(plugin); + if (iBrush) + addItems(pluginItem, "BrushInterface", iBrush->brushes()); + + auto iShape = qobject_cast<ShapeInterface *>(plugin); + if (iShape) + addItems(pluginItem, "ShapeInterface", iShape->shapes()); + + auto iFilter = qobject_cast<FilterInterface *>(plugin); + if (iFilter) + addItems(pluginItem, "FilterInterface", iFilter->filters()); + } +} +//! [1] + +void PluginDialog::addItems(QTreeWidgetItem *pluginItem, + const char *interfaceName, + const QStringList &features) +{ + auto interfaceItem = new QTreeWidgetItem(pluginItem); + interfaceItem->setText(0, interfaceName); + interfaceItem->setIcon(0, interfaceIcon); + + for (QString feature : features) { + if (feature.endsWith("...")) + feature.chop(3); + auto featureItem = new QTreeWidgetItem(interfaceItem); + featureItem->setText(0, feature); + featureItem->setIcon(0, featureIcon); + } +} diff --git a/tests/manual/examples/widgets/tools/plugandpaint/app/plugindialog.h b/tests/manual/examples/widgets/tools/plugandpaint/app/plugindialog.h new file mode 100644 index 0000000000..32b8aa6fe0 --- /dev/null +++ b/tests/manual/examples/widgets/tools/plugandpaint/app/plugindialog.h @@ -0,0 +1,38 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef PLUGINDIALOG_H +#define PLUGINDIALOG_H + +#include <QDialog> +#include <QIcon> + +QT_BEGIN_NAMESPACE +class QLabel; +class QPushButton; +class QTreeWidget; +class QTreeWidgetItem; +QT_END_NAMESPACE + +class PluginDialog : public QDialog +{ + Q_OBJECT + +public: + PluginDialog(const QString &path, const QStringList &fileNames, + QWidget *parent = nullptr); + +private: + void findPlugins(const QString &path, const QStringList &fileNames); + void populateTreeWidget(QObject *plugin, const QString &text); + void addItems(QTreeWidgetItem *pluginItem, const char *interfaceName, + const QStringList &features); + + QLabel *label = nullptr; + QTreeWidget *treeWidget = nullptr; + QPushButton *okButton = nullptr; + QIcon interfaceIcon; + QIcon featureIcon; +}; + +#endif |