diff options
Diffstat (limited to 'tests/manual/examples/widgets/draganddrop/fridgemagnets')
9 files changed, 420 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/CMakeLists.txt b/tests/manual/examples/widgets/draganddrop/fridgemagnets/CMakeLists.txt new file mode 100644 index 0000000000..966406969c --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/CMakeLists.txt @@ -0,0 +1,50 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +cmake_minimum_required(VERSION 3.16) +project(fridgemagnets LANGUAGES CXX) + +if(NOT DEFINED INSTALL_EXAMPLESDIR) + set(INSTALL_EXAMPLESDIR "examples") +endif() + +set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/draganddrop/fridgemagnets") + +find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets) + +qt_standard_project_setup() + +qt_add_executable(fridgemagnets + draglabel.cpp draglabel.h + dragwidget.cpp dragwidget.h + main.cpp +) + +set_target_properties(fridgemagnets PROPERTIES + WIN32_EXECUTABLE TRUE + MACOSX_BUNDLE TRUE +) + +target_link_libraries(fridgemagnets PRIVATE + Qt6::Core + Qt6::Gui + Qt6::Widgets +) + +# Resources: +set(fridgemagnets_resource_files + "words.txt" +) + +qt_add_resources(fridgemagnets "fridgemagnets" + PREFIX + "/dictionary" + FILES + ${fridgemagnets_resource_files} +) + +install(TARGETS fridgemagnets + RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" + BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" + LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" +) diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/draglabel.cpp b/tests/manual/examples/widgets/draganddrop/fridgemagnets/draglabel.cpp new file mode 100644 index 0000000000..952faae8fe --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/draglabel.cpp @@ -0,0 +1,51 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "draglabel.h" + +#include <QtWidgets> + +//! [0] +DragLabel::DragLabel(const QString &text, QWidget *parent) + : QLabel(parent) +{ + QFontMetrics metric(font()); + QSize size = metric.size(Qt::TextSingleLine, text); + + QImage image(size.width() + 12, size.height() + 12, QImage::Format_ARGB32_Premultiplied); + image.fill(qRgba(0, 0, 0, 0)); + + QFont font; + font.setStyleStrategy(QFont::ForceOutline); +//! [0] + +//! [1] + QLinearGradient gradient(0, 0, 0, image.height()-1); + gradient.setColorAt(0.0, Qt::white); + gradient.setColorAt(0.2, QColor(200, 200, 255)); + gradient.setColorAt(0.8, QColor(200, 200, 255)); + gradient.setColorAt(1.0, QColor(127, 127, 200)); + + QPainter painter; + painter.begin(&image); + painter.setRenderHint(QPainter::Antialiasing); + painter.setBrush(gradient); + painter.drawRoundedRect(QRectF(0.5, 0.5, image.width()-1, image.height()-1), + 25, 25, Qt::RelativeSize); + + painter.setFont(font); + painter.setBrush(Qt::black); + painter.drawText(QRect(QPoint(6, 6), size), Qt::AlignCenter, text); + painter.end(); +//! [1] + +//! [2] + setPixmap(QPixmap::fromImage(image)); + m_labelText = text; +} +//! [2] + +QString DragLabel::labelText() const +{ + return m_labelText; +} diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/draglabel.h b/tests/manual/examples/widgets/draganddrop/fridgemagnets/draglabel.h new file mode 100644 index 0000000000..e734a9ff78 --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/draglabel.h @@ -0,0 +1,27 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef DRAGLABEL_H +#define DRAGLABEL_H + +#include <QLabel> + +QT_BEGIN_NAMESPACE +class QDragEnterEvent; +class QDragMoveEvent; +class QFrame; +QT_END_NAMESPACE + +//! [0] +class DragLabel : public QLabel +{ +public: + DragLabel(const QString &text, QWidget *parent); + QString labelText() const; + +private: + QString m_labelText; +}; +//! [0] + +#endif // DRAGLABEL_H diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/dragwidget.cpp b/tests/manual/examples/widgets/draganddrop/fridgemagnets/dragwidget.cpp new file mode 100644 index 0000000000..a883e7c58a --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/dragwidget.cpp @@ -0,0 +1,176 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "draglabel.h" +#include "dragwidget.h" + +#include <QtWidgets> + +static inline QString fridgetMagnetsMimeType() { return QStringLiteral("application/x-fridgemagnet"); } + +//! [0] +DragWidget::DragWidget(QWidget *parent) + : QWidget(parent) +{ + QFile dictionaryFile(QStringLiteral(":/dictionary/words.txt")); + dictionaryFile.open(QFile::ReadOnly); + QTextStream inputStream(&dictionaryFile); +//! [0] + +//! [1] + int x = 5; + int y = 5; + + while (!inputStream.atEnd()) { + QString word; + inputStream >> word; + if (!word.isEmpty()) { + DragLabel *wordLabel = new DragLabel(word, this); + wordLabel->move(x, y); + wordLabel->show(); + wordLabel->setAttribute(Qt::WA_DeleteOnClose); + x += wordLabel->width() + 2; + if (x >= 245) { + x = 5; + y += wordLabel->height() + 2; + } + } + } +//! [1] + +//! [2] + QPalette newPalette = palette(); + newPalette.setColor(QPalette::Window, Qt::white); + setPalette(newPalette); + + setMinimumSize(400, qMax(200, y)); + setWindowTitle(tr("Fridge Magnets")); +//! [2] //! [3] + setAcceptDrops(true); +} +//! [3] + +//! [4] +void DragWidget::dragEnterEvent(QDragEnterEvent *event) +{ +//! [4] //! [5] + if (event->mimeData()->hasFormat(fridgetMagnetsMimeType())) { + if (children().contains(event->source())) { + event->setDropAction(Qt::MoveAction); + event->accept(); + } else { + event->acceptProposedAction(); +//! [5] //! [6] + } +//! [6] //! [7] + } else if (event->mimeData()->hasText()) { + event->acceptProposedAction(); + } else { + event->ignore(); + } +} +//! [7] + +//! [8] +void DragWidget::dragMoveEvent(QDragMoveEvent *event) +{ + if (event->mimeData()->hasFormat(fridgetMagnetsMimeType())) { + if (children().contains(event->source())) { + event->setDropAction(Qt::MoveAction); + event->accept(); + } else { + event->acceptProposedAction(); + } + } else if (event->mimeData()->hasText()) { + event->acceptProposedAction(); + } else { + event->ignore(); + } +} +//! [8] + +//! [9] +void DragWidget::dropEvent(QDropEvent *event) +{ + if (event->mimeData()->hasFormat(fridgetMagnetsMimeType())) { + const QMimeData *mime = event->mimeData(); +//! [9] //! [10] + QByteArray itemData = mime->data(fridgetMagnetsMimeType()); + QDataStream dataStream(&itemData, QIODevice::ReadOnly); + + QString text; + QPoint offset; + dataStream >> text >> offset; +//! [10] +//! [11] + DragLabel *newLabel = new DragLabel(text, this); + newLabel->move(event->position().toPoint() - offset); + newLabel->show(); + newLabel->setAttribute(Qt::WA_DeleteOnClose); + + if (event->source() == this) { + event->setDropAction(Qt::MoveAction); + event->accept(); + } else { + event->acceptProposedAction(); + } +//! [11] //! [12] + } else if (event->mimeData()->hasText()) { + QStringList pieces = event->mimeData()->text().split( + QRegularExpression(QStringLiteral("\\s+")), Qt::SkipEmptyParts); + QPoint position = event->position().toPoint(); + + for (const QString &piece : pieces) { + DragLabel *newLabel = new DragLabel(piece, this); + newLabel->move(position); + newLabel->show(); + newLabel->setAttribute(Qt::WA_DeleteOnClose); + + position += QPoint(newLabel->width(), 0); + } + + event->acceptProposedAction(); + } else { + event->ignore(); + } +} +//! [12] + +//! [13] +void DragWidget::mousePressEvent(QMouseEvent *event) +{ +//! [13] +//! [14] + DragLabel *child = static_cast<DragLabel*>(childAt(event->position().toPoint())); + if (!child) + return; + + QPoint hotSpot = event->position().toPoint() - child->pos(); + + QByteArray itemData; + QDataStream dataStream(&itemData, QIODevice::WriteOnly); + dataStream << child->labelText() << QPoint(hotSpot); +//! [14] + +//! [15] + QMimeData *mimeData = new QMimeData; + mimeData->setData(fridgetMagnetsMimeType(), itemData); + mimeData->setText(child->labelText()); +//! [15] + +//! [16] + QDrag *drag = new QDrag(this); + drag->setMimeData(mimeData); + drag->setPixmap(child->pixmap()); + drag->setHotSpot(hotSpot); + + child->hide(); +//! [16] + +//! [17] + if (drag->exec(Qt::MoveAction | Qt::CopyAction, Qt::CopyAction) == Qt::MoveAction) + child->close(); + else + child->show(); +} +//! [17] diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/dragwidget.h b/tests/manual/examples/widgets/draganddrop/fridgemagnets/dragwidget.h new file mode 100644 index 0000000000..9614a3b76a --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/dragwidget.h @@ -0,0 +1,28 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#ifndef DRAGWIDGET_H +#define DRAGWIDGET_H + +#include <QWidget> + +QT_BEGIN_NAMESPACE +class QDragEnterEvent; +class QDropEvent; +QT_END_NAMESPACE + +//! [0] +class DragWidget : public QWidget +{ +public: + explicit DragWidget(QWidget *parent = nullptr); + +protected: + void dragEnterEvent(QDragEnterEvent *event) override; + void dragMoveEvent(QDragMoveEvent *event) override; + void dropEvent(QDropEvent *event) override; + void mousePressEvent(QMouseEvent *event) override; +}; +//! [0] + +#endif // DRAGWIDGET_H diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/fridgemagnets.pro b/tests/manual/examples/widgets/draganddrop/fridgemagnets/fridgemagnets.pro new file mode 100644 index 0000000000..2c3165d1c5 --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/fridgemagnets.pro @@ -0,0 +1,12 @@ +QT += widgets + +HEADERS = draglabel.h \ + dragwidget.h +RESOURCES = fridgemagnets.qrc +SOURCES = draglabel.cpp \ + dragwidget.cpp \ + main.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/widgets/draganddrop/fridgemagnets +INSTALLS += target diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/fridgemagnets.qrc b/tests/manual/examples/widgets/draganddrop/fridgemagnets/fridgemagnets.qrc new file mode 100644 index 0000000000..b72217d701 --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/fridgemagnets.qrc @@ -0,0 +1,5 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource prefix="/dictionary"> + <file>words.txt</file> +</qresource> +</RCC> diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/main.cpp b/tests/manual/examples/widgets/draganddrop/fridgemagnets/main.cpp new file mode 100644 index 0000000000..d3ffc82650 --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/main.cpp @@ -0,0 +1,23 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include <QApplication> + +#include "dragwidget.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); +#ifdef QT_KEYPAD_NAVIGATION + QApplication::setNavigationMode(Qt::NavigationModeCursorAuto); +#endif + DragWidget window; + + bool smallScreen = QApplication::arguments().contains(QStringLiteral("-small-screen")); + if (smallScreen) + window.showFullScreen(); + else + window.show(); + + return app.exec(); +} diff --git a/tests/manual/examples/widgets/draganddrop/fridgemagnets/words.txt b/tests/manual/examples/widgets/draganddrop/fridgemagnets/words.txt new file mode 100644 index 0000000000..a7e1632b09 --- /dev/null +++ b/tests/manual/examples/widgets/draganddrop/fridgemagnets/words.txt @@ -0,0 +1,48 @@ +Colorless +green +ideas +sleep +furiously +A +colorless +green +idea +is +a +new +untried +idea +that +is +without +vividness +dull +and +unexciting +To +sleep +furiously +may +seem +a +puzzling +turn +of +phrase +but +the +mind +in +sleep +often +indeed +moves +furiously +with +ideas +and +images +flickering +in +and +out |