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#include "Visualization/VisualizationDragDropContainer.h"
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#include "Visualization/VisualizationDragDropContainer.h"
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#include "DragAndDrop/DragDropGuiController.h"
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#include "DragAndDrop/DragDropGuiController.h"
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#include "SqpApplication.h"
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#include "SqpApplication.h"
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#include "Visualization/VisualizationDragWidget.h"
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#include "Visualization/VisualizationDragWidget.h"
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#include "Common/VisualizationDef.h"
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#include "Common/VisualizationDef.h"
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#include <QDrag>
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#include <QDrag>
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#include <QDragEnterEvent>
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#include <QDragEnterEvent>
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#include <QVBoxLayout>
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#include <QVBoxLayout>
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#include <cmath>
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#include <cmath>
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#include <memory>
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#include <memory>
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Q_LOGGING_CATEGORY(LOG_VisualizationDragDropContainer, "VisualizationDragDropContainer")
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Q_LOGGING_CATEGORY(LOG_VisualizationDragDropContainer, "VisualizationDragDropContainer")
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auto DRAGGED_MINIATURE_WIDTH = 200; // in pixels
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auto DRAGGED_MINIATURE_WIDTH = 200; // in pixels
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struct VisualizationDragDropContainer::VisualizationDragDropContainerPrivate {
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struct VisualizationDragDropContainer::VisualizationDragDropContainerPrivate
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{
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QVBoxLayout *m_Layout;
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QHash<QString, VisualizationDragDropContainer::DropBehavior> m_AcceptedMimeTypes;
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QVBoxLayout* m_Layout;
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QString m_PlaceHolderText;
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QHash<QString, VisualizationDragDropContainer::DropBehavior> m_AcceptedMimeTypes;
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DragDropGuiController::PlaceHolderType m_PlaceHolderType;
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QString m_PlaceHolderText;
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DragDropGuiController::PlaceHolderType m_PlaceHolderType;
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VisualizationDragDropContainer::AcceptMimeDataFunction m_AcceptMimeDataFun
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= [](auto mimeData) { return true; };
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VisualizationDragDropContainer::AcceptMimeDataFunction m_AcceptMimeDataFun
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VisualizationDragDropContainer::AcceptDragWidgetFunction m_AcceptDragWidgetFun
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= [](auto mimeData) { return true; };
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= [](auto dragWidget, auto mimeData) { return true; };
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VisualizationDragDropContainer::AcceptDragWidgetFunction m_AcceptDragWidgetFun
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= [](auto dragWidget, auto mimeData) { return true; };
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int m_MinContainerHeight = 0;
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int m_MinContainerHeight = 0;
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explicit VisualizationDragDropContainerPrivate(QWidget *widget)
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: m_PlaceHolderType(DragDropGuiController::PlaceHolderType::Graph)
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explicit VisualizationDragDropContainerPrivate(QWidget* widget)
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{
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: m_PlaceHolderType(DragDropGuiController::PlaceHolderType::Graph)
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m_Layout = new QVBoxLayout(widget);
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{
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m_Layout->setContentsMargins(0, 0, 0, 0);
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m_Layout = new QVBoxLayout(widget);
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}
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m_Layout->setContentsMargins(0, 0, 0, 0);
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}
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bool acceptMimeData(const QMimeData *data) const
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{
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bool acceptMimeData(const QMimeData* data) const
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auto accepted = false;
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{
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for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd();
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auto accepted = false;
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++it) {
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for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd(); ++it)
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const auto &type = it.key();
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{
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const auto &behavior = it.value();
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const auto& type = it.key();
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const auto& behavior = it.value();
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if (data->hasFormat(type)) {
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if (behavior != DropBehavior::Forbidden) {
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if (data->hasFormat(type))
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accepted = true;
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{
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}
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if (behavior != DropBehavior::Forbidden)
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else {
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{
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accepted = false;
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accepted = true;
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break;
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}
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}
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else
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}
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{
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}
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accepted = false;
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break;
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if (accepted) {
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}
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accepted = m_AcceptMimeDataFun(data);
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}
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}
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}
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return accepted;
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if (accepted)
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}
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{
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accepted = m_AcceptMimeDataFun(data);
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bool allowMergeForMimeData(const QMimeData *data) const
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}
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{
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auto result = false;
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return accepted;
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for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd();
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}
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++it) {
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bool allowMergeForMimeData(const QMimeData* data) const
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if (data->hasFormat(it.key())
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{
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&& (it.value() == VisualizationDragDropContainer::DropBehavior::Merged
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auto result = false;
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|| it.value()
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for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd(); ++it)
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== VisualizationDragDropContainer::DropBehavior::InsertedAndMerged)) {
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{
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result = true;
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}
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if (data->hasFormat(it.key())
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else if (data->hasFormat(it.key())
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&& (it.value() == VisualizationDragDropContainer::DropBehavior::Merged
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&& it.value() == VisualizationDragDropContainer::DropBehavior::Inserted) {
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|| it.value()
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// Merge is forbidden if the mime data contain an acceptable type which cannot be
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== VisualizationDragDropContainer::DropBehavior::InsertedAndMerged))
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// merged
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{
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result = false;
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result = true;
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break;
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}
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}
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else if (data->hasFormat(it.key())
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}
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&& it.value() == VisualizationDragDropContainer::DropBehavior::Inserted)
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{
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return result;
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// Merge is forbidden if the mime data contain an acceptable type which cannot be
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}
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// merged
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result = false;
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bool allowInsertForMimeData(const QMimeData *data) const
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break;
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{
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}
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for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd();
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}
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++it) {
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if (data->hasFormat(it.key())
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return result;
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&& (it.value() == VisualizationDragDropContainer::DropBehavior::Inserted
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}
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|| it.value()
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== VisualizationDragDropContainer::DropBehavior::InsertedAndMerged)) {
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bool allowInsertForMimeData(const QMimeData* data) const
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return true;
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{
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}
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for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd(); ++it)
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}
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{
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if (data->hasFormat(it.key())
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return false;
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&& (it.value() == VisualizationDragDropContainer::DropBehavior::Inserted
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}
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|| it.value()
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== VisualizationDragDropContainer::DropBehavior::InsertedAndMerged))
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bool hasPlaceHolder() const
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{
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{
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return true;
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return sqpApp->dragDropGuiController().placeHolder().parentWidget()
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}
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== m_Layout->parentWidget();
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}
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}
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return false;
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VisualizationDragWidget *getChildDragWidgetAt(const QWidget *parent, const QPoint &pos) const
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}
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{
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VisualizationDragWidget *dragWidget = nullptr;
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bool hasPlaceHolder() const
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{
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for (auto child : parent->children()) {
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return sqpApp->dragDropGuiController().placeHolder().parentWidget()
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auto widget = qobject_cast<VisualizationDragWidget *>(child);
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== m_Layout->parentWidget();
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if (widget && widget->isVisible()) {
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}
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if (widget->frameGeometry().contains(pos)) {
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dragWidget = widget;
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VisualizationDragWidget* getChildDragWidgetAt(const QWidget* parent, const QPoint& pos) const
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break;
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{
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}
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VisualizationDragWidget* dragWidget = nullptr;
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}
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}
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for (auto child : parent->children())
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{
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return dragWidget;
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auto widget = qobject_cast<VisualizationDragWidget*>(child);
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}
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if (widget && widget->isVisible())
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{
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bool cursorIsInContainer(QWidget *container) const
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if (widget->frameGeometry().contains(pos))
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{
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{
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auto widgetUnderMouse = sqpApp->widgetAt(QCursor::pos());
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dragWidget = widget;
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return container->isAncestorOf(widgetUnderMouse) && widgetUnderMouse != container
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break;
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&& sqpApp->dragDropGuiController().placeHolder().isAncestorOf(widgetUnderMouse);
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}
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}
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}
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}
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int countDragWidget(const QWidget *parent, bool onlyVisible = false) const
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{
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return dragWidget;
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auto nbGraph = 0;
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}
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for (auto child : parent->children()) {
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if (qobject_cast<VisualizationDragWidget *>(child)) {
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bool cursorIsInContainer(QWidget* container) const
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if (!onlyVisible || qobject_cast<VisualizationDragWidget *>(child)->isVisible()) {
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{
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nbGraph += 1;
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auto widgetUnderMouse = sqpApp->widgetAt(QCursor::pos());
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}
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return container->isAncestorOf(widgetUnderMouse) && widgetUnderMouse != container
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}
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&& sqpApp->dragDropGuiController().placeHolder().isAncestorOf(widgetUnderMouse);
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}
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}
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return nbGraph;
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int countDragWidget(const QWidget* parent, bool onlyVisible = false) const
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}
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{
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auto nbGraph = 0;
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bool findPlaceHolderPosition(const QPoint &pos, const QMimeData *mimeData, bool canInsert,
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for (auto child : parent->children())
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bool canMerge, const VisualizationDragDropContainer *container);
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{
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};
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if (qobject_cast<VisualizationDragWidget*>(child))
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{
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VisualizationDragDropContainer::VisualizationDragDropContainer(QWidget *parent)
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if (!onlyVisible || qobject_cast<VisualizationDragWidget*>(child)->isVisible())
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: QFrame{parent},
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{
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impl{spimpl::make_unique_impl<VisualizationDragDropContainerPrivate>(this)}
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nbGraph += 1;
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{
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}
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setAcceptDrops(true);
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}
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}
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}
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void VisualizationDragDropContainer::addDragWidget(VisualizationDragWidget *dragWidget)
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return nbGraph;
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{
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}
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impl->m_Layout->addWidget(dragWidget);
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disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr);
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bool findPlaceHolderPosition(const QPoint& pos, const QMimeData* mimeData, bool canInsert,
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connect(dragWidget, &VisualizationDragWidget::dragDetected, this,
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bool canMerge, const VisualizationDragDropContainer* container);
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&VisualizationDragDropContainer::startDrag);
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};
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}
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VisualizationDragDropContainer::VisualizationDragDropContainer(QWidget* parent)
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void VisualizationDragDropContainer::insertDragWidget(int index,
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: QFrame { parent }
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VisualizationDragWidget *dragWidget)
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, impl { spimpl::make_unique_impl<VisualizationDragDropContainerPrivate>(this) }
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{
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{
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impl->m_Layout->insertWidget(index, dragWidget);
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setAcceptDrops(true);
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disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr);
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}
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connect(dragWidget, &VisualizationDragWidget::dragDetected, this,
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&VisualizationDragDropContainer::startDrag);
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void VisualizationDragDropContainer::addDragWidget(VisualizationDragWidget* dragWidget)
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}
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{
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impl->m_Layout->addWidget(dragWidget);
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void VisualizationDragDropContainer::setMimeType(
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disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr);
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const QString &mimeType, VisualizationDragDropContainer::DropBehavior behavior)
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connect(dragWidget, &VisualizationDragWidget::dragDetected, this,
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{
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&VisualizationDragDropContainer::startDrag);
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impl->m_AcceptedMimeTypes[mimeType] = behavior;
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}
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}
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void VisualizationDragDropContainer::insertDragWidget(
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int VisualizationDragDropContainer::countDragWidget() const
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183
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int index, VisualizationDragWidget* dragWidget)
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184
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{
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{
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return impl->countDragWidget(this);
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impl->m_Layout->insertWidget(index, dragWidget);
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}
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disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr);
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187
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187
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connect(dragWidget, &VisualizationDragWidget::dragDetected, this,
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188
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void VisualizationDragDropContainer::setAcceptMimeDataFunction(
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188
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&VisualizationDragDropContainer::startDrag);
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189
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VisualizationDragDropContainer::AcceptMimeDataFunction fun)
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}
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{
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190
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impl->m_AcceptMimeDataFun = fun;
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191
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void VisualizationDragDropContainer::setMimeType(
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192
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}
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const QString& mimeType, VisualizationDragDropContainer::DropBehavior behavior)
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193
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193
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{
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194
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void VisualizationDragDropContainer::setAcceptDragWidgetFunction(
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194
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impl->m_AcceptedMimeTypes[mimeType] = behavior;
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195
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VisualizationDragDropContainer::AcceptDragWidgetFunction fun)
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195
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}
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196
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{
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196
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197
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impl->m_AcceptDragWidgetFun = fun;
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197
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int VisualizationDragDropContainer::countDragWidget() const
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198
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}
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198
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{
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199
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199
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return impl->countDragWidget(this);
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200
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void VisualizationDragDropContainer::setPlaceHolderType(DragDropGuiController::PlaceHolderType type,
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200
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}
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201
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const QString &placeHolderText)
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201
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202
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{
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202
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void VisualizationDragDropContainer::setAcceptMimeDataFunction(
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203
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impl->m_PlaceHolderType = type;
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203
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VisualizationDragDropContainer::AcceptMimeDataFunction fun)
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204
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impl->m_PlaceHolderText = placeHolderText;
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204
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{
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205
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}
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205
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impl->m_AcceptMimeDataFun = fun;
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206
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206
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}
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void VisualizationDragDropContainer::startDrag(VisualizationDragWidget *dragWidget,
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207
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208
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const QPoint &dragPosition)
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208
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void VisualizationDragDropContainer::setAcceptDragWidgetFunction(
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209
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{
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209
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VisualizationDragDropContainer::AcceptDragWidgetFunction fun)
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210
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auto &helper = sqpApp->dragDropGuiController();
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210
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{
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211
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helper.resetDragAndDrop();
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211
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impl->m_AcceptDragWidgetFun = fun;
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212
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212
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}
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// Note: The management of the drag object is done by Qt
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213
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214
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auto drag = new QDrag{dragWidget};
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214
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void VisualizationDragDropContainer::setPlaceHolderType(
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215
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215
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DragDropGuiController::PlaceHolderType type, const QString& placeHolderText)
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216
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auto mimeData = dragWidget->mimeData(dragPosition);
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216
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{
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217
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drag->setMimeData(mimeData);
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217
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impl->m_PlaceHolderType = type;
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218
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218
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impl->m_PlaceHolderText = placeHolderText;
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219
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auto pixmap = dragWidget->customDragPixmap(dragPosition);
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219
|
}
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220
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if (pixmap.isNull()) {
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220
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221
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pixmap = QPixmap{dragWidget->size()};
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221
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void VisualizationDragDropContainer::startDrag(
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222
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dragWidget->render(&pixmap);
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222
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VisualizationDragWidget* dragWidget, const QPoint& dragPosition)
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223
|
}
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223
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{
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224
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224
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auto& helper = sqpApp->dragDropGuiController();
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225
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drag->setPixmap(pixmap.scaled(DRAGGED_MINIATURE_WIDTH, DRAGGED_MINIATURE_WIDTH,
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225
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helper.resetDragAndDrop();
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226
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Qt::KeepAspectRatio, Qt::SmoothTransformation));
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226
|
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227
|
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227
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// Note: The management of the drag object is done by Qt
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228
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auto image = pixmap.toImage();
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228
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auto drag = new QDrag { dragWidget };
|
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229
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mimeData->setImageData(image);
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229
|
|
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230
|
mimeData->setUrls({helper.imageTemporaryUrl(image)});
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230
|
auto mimeData = dragWidget->mimeData(dragPosition);
|
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|
231
|
|
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231
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drag->setMimeData(mimeData);
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232
|
if (impl->m_Layout->indexOf(dragWidget) >= 0) {
|
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232
|
|
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233
|
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233
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auto pixmap = dragWidget->customDragPixmap(dragPosition);
|
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234
|
if (impl->acceptMimeData(mimeData) && impl->allowInsertForMimeData(mimeData)) {
|
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234
|
if (pixmap.isNull())
|
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|
235
|
helper.setCurrentDragWidget(dragWidget);
|
|
235
|
{
|
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|
236
|
|
|
236
|
pixmap = QPixmap { dragWidget->size() };
|
|
|
237
|
if (impl->cursorIsInContainer(this)) {
|
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237
|
dragWidget->render(&pixmap);
|
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|
238
|
auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget);
|
|
238
|
}
|
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239
|
helper.insertPlaceHolder(impl->m_Layout, dragWidgetIndex, impl->m_PlaceHolderType,
|
|
239
|
|
|
|
240
|
impl->m_PlaceHolderText);
|
|
240
|
drag->setPixmap(pixmap.scaled(DRAGGED_MINIATURE_WIDTH, DRAGGED_MINIATURE_WIDTH,
|
|
|
241
|
dragWidget->setVisible(false);
|
|
241
|
Qt::KeepAspectRatio, Qt::SmoothTransformation));
|
|
|
242
|
}
|
|
242
|
|
|
|
243
|
else {
|
|
243
|
auto image = pixmap.toImage();
|
|
|
244
|
// The drag starts directly outside the drop zone
|
|
244
|
mimeData->setImageData(image);
|
|
|
245
|
// do not add the placeHolder
|
|
245
|
mimeData->setUrls({ helper.imageTemporaryUrl(image) });
|
|
|
246
|
}
|
|
246
|
|
|
|
247
|
}
|
|
247
|
if (impl->m_Layout->indexOf(dragWidget) >= 0)
|
|
|
248
|
|
|
248
|
{
|
|
|
249
|
drag->exec(Qt::MoveAction | Qt::CopyAction, Qt::MoveAction);
|
|
249
|
|
|
|
250
|
|
|
250
|
if (impl->acceptMimeData(mimeData) && impl->allowInsertForMimeData(mimeData))
|
|
|
251
|
helper.doCloseWidgets();
|
|
251
|
{
|
|
|
252
|
}
|
|
252
|
helper.setCurrentDragWidget(dragWidget);
|
|
|
253
|
else {
|
|
253
|
|
|
|
254
|
qCWarning(LOG_VisualizationDragDropContainer())
|
|
254
|
if (impl->cursorIsInContainer(this))
|
|
|
255
|
<< tr("VisualizationDragDropContainer::startDrag, drag aborted, the specified "
|
|
255
|
{
|
|
|
256
|
"VisualizationDragWidget is not found in this container.");
|
|
256
|
auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget);
|
|
|
257
|
}
|
|
257
|
helper.insertPlaceHolder(impl->m_Layout, dragWidgetIndex, impl->m_PlaceHolderType,
|
|
|
258
|
}
|
|
258
|
impl->m_PlaceHolderText);
|
|
|
259
|
|
|
259
|
dragWidget->setVisible(false);
|
|
|
260
|
void VisualizationDragDropContainer::dragEnterEvent(QDragEnterEvent *event)
|
|
260
|
}
|
|
|
261
|
{
|
|
261
|
else
|
|
|
262
|
if (impl->acceptMimeData(event->mimeData())) {
|
|
262
|
{
|
|
|
263
|
event->acceptProposedAction();
|
|
263
|
// The drag starts directly outside the drop zone
|
|
|
264
|
|
|
264
|
// do not add the placeHolder
|
|
|
265
|
auto &helper = sqpApp->dragDropGuiController();
|
|
265
|
}
|
|
|
266
|
|
|
266
|
}
|
|
|
267
|
if (!impl->hasPlaceHolder()) {
|
|
267
|
|
|
|
268
|
auto dragWidget = helper.getCurrentDragWidget();
|
|
268
|
drag->exec(Qt::MoveAction | Qt::CopyAction, Qt::MoveAction);
|
|
|
269
|
|
|
269
|
|
|
|
270
|
if (dragWidget) {
|
|
270
|
helper.doCloseWidgets();
|
|
|
271
|
// If the drag&drop is internal to the visualization, entering the container hide
|
|
271
|
}
|
|
|
272
|
// the dragWidget which was made visible by the dragLeaveEvent
|
|
272
|
else
|
|
|
273
|
auto parentWidget
|
|
273
|
{
|
|
|
274
|
= qobject_cast<VisualizationDragDropContainer *>(dragWidget->parentWidget());
|
|
274
|
qCWarning(LOG_VisualizationDragDropContainer())
|
|
|
275
|
if (parentWidget) {
|
|
275
|
<< tr("VisualizationDragDropContainer::startDrag, drag aborted, the specified "
|
|
|
276
|
dragWidget->setVisible(false);
|
|
276
|
"VisualizationDragWidget is not found in this container.");
|
|
|
277
|
}
|
|
277
|
}
|
|
|
278
|
}
|
|
278
|
}
|
|
|
279
|
|
|
279
|
|
|
|
280
|
auto canMerge = impl->allowMergeForMimeData(event->mimeData());
|
|
280
|
void VisualizationDragDropContainer::dragEnterEvent(QDragEnterEvent* event)
|
|
|
281
|
auto canInsert = impl->allowInsertForMimeData(event->mimeData());
|
|
281
|
{
|
|
|
282
|
if (!impl->findPlaceHolderPosition(event->pos(), event->mimeData(), canInsert, canMerge,
|
|
282
|
if (impl->acceptMimeData(event->mimeData()))
|
|
|
283
|
this)) {
|
|
283
|
{
|
|
|
284
|
event->ignore();
|
|
284
|
event->acceptProposedAction();
|
|
|
285
|
}
|
|
285
|
|
|
|
286
|
}
|
|
286
|
auto& helper = sqpApp->dragDropGuiController();
|
|
|
287
|
else {
|
|
287
|
|
|
|
288
|
// do nothing
|
|
288
|
if (!impl->hasPlaceHolder())
|
|
|
289
|
}
|
|
289
|
{
|
|
|
290
|
}
|
|
290
|
auto dragWidget = helper.getCurrentDragWidget();
|
|
|
291
|
else {
|
|
291
|
|
|
|
292
|
event->ignore();
|
|
292
|
if (dragWidget)
|
|
|
293
|
}
|
|
293
|
{
|
|
|
294
|
|
|
294
|
// If the drag&drop is internal to the visualization, entering the container hide
|
|
|
295
|
QWidget::dragEnterEvent(event);
|
|
295
|
// the dragWidget which was made visible by the dragLeaveEvent
|
|
|
296
|
}
|
|
296
|
auto parentWidget
|
|
|
297
|
|
|
297
|
= qobject_cast<VisualizationDragDropContainer*>(dragWidget->parentWidget());
|
|
|
298
|
void VisualizationDragDropContainer::dragLeaveEvent(QDragLeaveEvent *event)
|
|
298
|
if (parentWidget)
|
|
|
299
|
{
|
|
299
|
{
|
|
|
300
|
Q_UNUSED(event);
|
|
300
|
dragWidget->setVisible(false);
|
|
|
301
|
|
|
301
|
}
|
|
|
302
|
auto &helper = sqpApp->dragDropGuiController();
|
|
302
|
}
|
|
|
303
|
|
|
303
|
|
|
|
304
|
if (!impl->cursorIsInContainer(this)) {
|
|
304
|
auto canMerge = impl->allowMergeForMimeData(event->mimeData());
|
|
|
305
|
helper.removePlaceHolder();
|
|
305
|
auto canInsert = impl->allowInsertForMimeData(event->mimeData());
|
|
|
306
|
helper.setHightlightedDragWidget(nullptr);
|
|
306
|
if (!impl->findPlaceHolderPosition(
|
|
|
307
|
impl->m_MinContainerHeight = 0;
|
|
307
|
event->pos(), event->mimeData(), canInsert, canMerge, this))
|
|
|
308
|
|
|
308
|
{
|
|
|
309
|
auto dragWidget = helper.getCurrentDragWidget();
|
|
309
|
event->ignore();
|
|
|
310
|
if (dragWidget) {
|
|
310
|
}
|
|
|
311
|
// dragWidget has a value only if the drag is started from the visualization
|
|
311
|
}
|
|
|
312
|
// In that case, shows the drag widget at its original place
|
|
312
|
else
|
|
|
313
|
// So the drag widget doesn't stay hidden if the drop occurs outside the visualization
|
|
313
|
{
|
|
|
314
|
// drop zone (It is not possible to catch a drop event outside of the application)
|
|
314
|
// do nothing
|
|
|
315
|
|
|
315
|
}
|
|
|
316
|
if (dragWidget) {
|
|
316
|
}
|
|
|
317
|
dragWidget->setVisible(true);
|
|
317
|
else
|
|
|
318
|
}
|
|
318
|
{
|
|
|
319
|
}
|
|
319
|
event->ignore();
|
|
|
320
|
}
|
|
320
|
}
|
|
|
321
|
else {
|
|
321
|
|
|
|
322
|
// Leave event probably received for a child widget.
|
|
322
|
QWidget::dragEnterEvent(event);
|
|
|
323
|
// Do nothing.
|
|
323
|
}
|
|
|
324
|
// Note: The DragLeave event, doesn't have any mean to determine who sent it.
|
|
324
|
|
|
|
325
|
}
|
|
325
|
void VisualizationDragDropContainer::dragLeaveEvent(QDragLeaveEvent* event)
|
|
|
326
|
|
|
326
|
{
|
|
|
327
|
QWidget::dragLeaveEvent(event);
|
|
327
|
Q_UNUSED(event);
|
|
|
328
|
}
|
|
328
|
|
|
|
329
|
|
|
329
|
auto& helper = sqpApp->dragDropGuiController();
|
|
|
330
|
void VisualizationDragDropContainer::dragMoveEvent(QDragMoveEvent *event)
|
|
330
|
|
|
|
331
|
{
|
|
331
|
if (!impl->cursorIsInContainer(this))
|
|
|
332
|
if (impl->acceptMimeData(event->mimeData())) {
|
|
332
|
{
|
|
|
333
|
auto canMerge = impl->allowMergeForMimeData(event->mimeData());
|
|
333
|
helper.removePlaceHolder();
|
|
|
334
|
auto canInsert = impl->allowInsertForMimeData(event->mimeData());
|
|
334
|
helper.setHightlightedDragWidget(nullptr);
|
|
|
335
|
impl->findPlaceHolderPosition(event->pos(), event->mimeData(), canInsert, canMerge, this);
|
|
335
|
impl->m_MinContainerHeight = 0;
|
|
|
336
|
}
|
|
336
|
|
|
|
337
|
else {
|
|
337
|
auto dragWidget = helper.getCurrentDragWidget();
|
|
|
338
|
event->ignore();
|
|
338
|
if (dragWidget)
|
|
|
339
|
}
|
|
339
|
{
|
|
|
340
|
|
|
340
|
// dragWidget has a value only if the drag is started from the visualization
|
|
|
341
|
QWidget::dragMoveEvent(event);
|
|
341
|
// In that case, shows the drag widget at its original place
|
|
|
342
|
}
|
|
342
|
// So the drag widget doesn't stay hidden if the drop occurs outside the visualization
|
|
|
343
|
|
|
343
|
// drop zone (It is not possible to catch a drop event outside of the application)
|
|
|
344
|
void VisualizationDragDropContainer::dropEvent(QDropEvent *event)
|
|
344
|
|
|
|
345
|
{
|
|
345
|
if (dragWidget)
|
|
|
346
|
auto &helper = sqpApp->dragDropGuiController();
|
|
346
|
{
|
|
|
347
|
|
|
347
|
dragWidget->setVisible(true);
|
|
|
348
|
if (impl->acceptMimeData(event->mimeData())) {
|
|
348
|
}
|
|
|
349
|
auto dragWidget = helper.getCurrentDragWidget();
|
|
349
|
}
|
|
|
350
|
if (impl->hasPlaceHolder()) {
|
|
350
|
}
|
|
|
351
|
// drop where the placeHolder is located
|
|
351
|
else
|
|
|
352
|
|
|
352
|
{
|
|
|
353
|
auto canInsert = impl->allowInsertForMimeData(event->mimeData());
|
|
353
|
// Leave event probably received for a child widget.
|
|
|
354
|
if (canInsert) {
|
|
354
|
// Do nothing.
|
|
|
355
|
auto droppedIndex = impl->m_Layout->indexOf(&helper.placeHolder());
|
|
355
|
// Note: The DragLeave event, doesn't have any mean to determine who sent it.
|
|
|
356
|
|
|
356
|
}
|
|
|
357
|
if (dragWidget) {
|
|
357
|
|
|
|
358
|
auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget);
|
|
358
|
QWidget::dragLeaveEvent(event);
|
|
|
359
|
if (dragWidgetIndex >= 0 && dragWidgetIndex < droppedIndex) {
|
|
359
|
}
|
|
|
360
|
// Correction of the index if the drop occurs in the same container
|
|
360
|
|
|
|
361
|
// and if the drag is started from the visualization (in that case, the
|
|
361
|
void VisualizationDragDropContainer::dragMoveEvent(QDragMoveEvent* event)
|
|
|
362
|
// dragWidget is hidden)
|
|
362
|
{
|
|
|
363
|
droppedIndex -= 1;
|
|
363
|
if (impl->acceptMimeData(event->mimeData()))
|
|
|
364
|
}
|
|
364
|
{
|
|
|
365
|
|
|
365
|
event->acceptProposedAction();
|
|
|
366
|
dragWidget->setVisible(true);
|
|
366
|
auto canMerge = impl->allowMergeForMimeData(event->mimeData());
|
|
|
367
|
}
|
|
367
|
auto canInsert = impl->allowInsertForMimeData(event->mimeData());
|
|
|
368
|
|
|
368
|
impl->findPlaceHolderPosition(event->pos(), event->mimeData(), canInsert, canMerge, this);
|
|
|
369
|
event->acceptProposedAction();
|
|
369
|
}
|
|
|
370
|
|
|
370
|
else
|
|
|
371
|
helper.removePlaceHolder();
|
|
371
|
{
|
|
|
372
|
|
|
372
|
event->ignore();
|
|
|
373
|
emit dropOccuredInContainer(droppedIndex, event->mimeData());
|
|
373
|
}
|
|
|
374
|
}
|
|
374
|
|
|
|
375
|
else {
|
|
375
|
QWidget::dragMoveEvent(event);
|
|
|
376
|
qCWarning(LOG_VisualizationDragDropContainer()) << tr(
|
|
376
|
}
|
|
|
377
|
"VisualizationDragDropContainer::dropEvent, dropping on the placeHolder, but "
|
|
377
|
|
|
|
378
|
"the insertion is forbidden.");
|
|
378
|
void VisualizationDragDropContainer::dropEvent(QDropEvent* event)
|
|
|
379
|
Q_ASSERT(false);
|
|
379
|
{
|
|
|
380
|
}
|
|
380
|
auto& helper = sqpApp->dragDropGuiController();
|
|
|
381
|
}
|
|
381
|
|
|
|
382
|
else if (helper.getHightlightedDragWidget()) {
|
|
382
|
if (impl->acceptMimeData(event->mimeData()))
|
|
|
383
|
// drop on the highlighted widget
|
|
383
|
{
|
|
|
384
|
|
|
384
|
auto dragWidget = helper.getCurrentDragWidget();
|
|
|
385
|
auto canMerge = impl->allowMergeForMimeData(event->mimeData());
|
|
385
|
if (impl->hasPlaceHolder())
|
|
|
386
|
if (canMerge) {
|
|
386
|
{
|
|
|
387
|
event->acceptProposedAction();
|
|
387
|
// drop where the placeHolder is located
|
|
|
388
|
emit dropOccuredOnWidget(helper.getHightlightedDragWidget(), event->mimeData());
|
|
388
|
|
|
|
389
|
}
|
|
389
|
auto canInsert = impl->allowInsertForMimeData(event->mimeData());
|
|
|
390
|
else {
|
|
390
|
if (canInsert)
|
|
|
391
|
qCWarning(LOG_VisualizationDragDropContainer())
|
|
391
|
{
|
|
|
392
|
<< tr("VisualizationDragDropContainer::dropEvent, dropping on a widget, but "
|
|
392
|
auto droppedIndex = impl->m_Layout->indexOf(&helper.placeHolder());
|
|
|
393
|
"the merge is forbidden.");
|
|
393
|
|
|
|
394
|
Q_ASSERT(false);
|
|
394
|
if (dragWidget)
|
|
|
395
|
}
|
|
395
|
{
|
|
|
396
|
}
|
|
396
|
auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget);
|
|
|
397
|
}
|
|
397
|
if (dragWidgetIndex >= 0 && dragWidgetIndex < droppedIndex)
|
|
|
398
|
else {
|
|
398
|
{
|
|
|
399
|
event->ignore();
|
|
399
|
// Correction of the index if the drop occurs in the same container
|
|
|
400
|
}
|
|
400
|
// and if the drag is started from the visualization (in that case, the
|
|
|
401
|
|
|
401
|
// dragWidget is hidden)
|
|
|
402
|
sqpApp->dragDropGuiController().setHightlightedDragWidget(nullptr);
|
|
402
|
droppedIndex -= 1;
|
|
|
403
|
impl->m_MinContainerHeight = 0;
|
|
403
|
}
|
|
|
404
|
|
|
404
|
|
|
|
405
|
QWidget::dropEvent(event);
|
|
405
|
dragWidget->setVisible(true);
|
|
|
406
|
}
|
|
406
|
}
|
|
|
407
|
|
|
407
|
|
|
|
408
|
|
|
408
|
event->acceptProposedAction();
|
|
|
409
|
bool VisualizationDragDropContainer::VisualizationDragDropContainerPrivate::findPlaceHolderPosition(
|
|
409
|
|
|
|
410
|
const QPoint &pos, const QMimeData *mimeData, bool canInsert, bool canMerge,
|
|
410
|
helper.removePlaceHolder();
|
|
|
411
|
const VisualizationDragDropContainer *container)
|
|
411
|
|
|
|
412
|
{
|
|
412
|
emit dropOccuredInContainer(droppedIndex, event->mimeData());
|
|
|
413
|
auto &helper = sqpApp->dragDropGuiController();
|
|
413
|
}
|
|
|
414
|
|
|
414
|
else
|
|
|
415
|
auto absPos = container->mapToGlobal(pos);
|
|
415
|
{
|
|
|
416
|
auto isOnPlaceHolder = helper.placeHolder().isAncestorOf(sqpApp->widgetAt(absPos));
|
|
416
|
qCWarning(LOG_VisualizationDragDropContainer()) << tr(
|
|
|
417
|
|
|
417
|
"VisualizationDragDropContainer::dropEvent, dropping on the placeHolder, but "
|
|
|
418
|
if (countDragWidget(container, true) == 0) {
|
|
418
|
"the insertion is forbidden.");
|
|
|
419
|
// Drop on an empty container, just add the placeHolder at the top
|
|
419
|
Q_ASSERT(false);
|
|
|
420
|
helper.insertPlaceHolder(m_Layout, 0, m_PlaceHolderType, m_PlaceHolderText);
|
|
420
|
}
|
|
|
421
|
}
|
|
421
|
}
|
|
|
422
|
else if (!isOnPlaceHolder) {
|
|
422
|
else if (helper.getHightlightedDragWidget())
|
|
|
423
|
auto nbDragWidget = countDragWidget(container);
|
|
423
|
{
|
|
|
424
|
if (nbDragWidget > 0) {
|
|
424
|
// drop on the highlighted widget
|
|
|
425
|
|
|
425
|
|
|
|
426
|
if (m_MinContainerHeight == 0) {
|
|
426
|
auto canMerge = impl->allowMergeForMimeData(event->mimeData());
|
|
|
427
|
m_MinContainerHeight = container->size().height();
|
|
427
|
if (canMerge)
|
|
|
428
|
}
|
|
428
|
{
|
|
|
429
|
|
|
429
|
event->acceptProposedAction();
|
|
|
430
|
m_MinContainerHeight = qMin(m_MinContainerHeight, container->size().height());
|
|
430
|
emit dropOccuredOnWidget(helper.getHightlightedDragWidget(), event->mimeData());
|
|
|
431
|
auto graphHeight = qMax(m_MinContainerHeight / nbDragWidget, GRAPH_MINIMUM_HEIGHT);
|
|
431
|
}
|
|
|
432
|
|
|
432
|
else
|
|
|
433
|
auto posY = pos.y();
|
|
433
|
{
|
|
|
434
|
auto dropIndex = floor(posY / graphHeight);
|
|
434
|
qCWarning(LOG_VisualizationDragDropContainer())
|
|
|
435
|
auto zoneSize = graphHeight / 4.0;
|
|
435
|
<< tr("VisualizationDragDropContainer::dropEvent, dropping on a widget, but "
|
|
|
436
|
|
|
436
|
"the merge is forbidden.");
|
|
|
437
|
|
|
437
|
Q_ASSERT(false);
|
|
|
438
|
auto isOnTop = posY < dropIndex * graphHeight + zoneSize;
|
|
438
|
}
|
|
|
439
|
auto isOnBottom = posY > (dropIndex + 1) * graphHeight - zoneSize;
|
|
439
|
}
|
|
|
440
|
|
|
440
|
}
|
|
|
441
|
auto placeHolderIndex = m_Layout->indexOf(&(helper.placeHolder()));
|
|
441
|
else
|
|
|
442
|
|
|
442
|
{
|
|
|
443
|
auto dragWidgetHovered = getChildDragWidgetAt(container, pos);
|
|
443
|
event->ignore();
|
|
|
444
|
|
|
444
|
}
|
|
|
445
|
auto acceptMerge = m_AcceptDragWidgetFun(dragWidgetHovered, mimeData);
|
|
445
|
|
|
|
446
|
|
|
446
|
sqpApp->dragDropGuiController().setHightlightedDragWidget(nullptr);
|
|
|
447
|
if (canInsert && (isOnTop || isOnBottom || !canMerge || !acceptMerge)) {
|
|
447
|
impl->m_MinContainerHeight = 0;
|
|
|
448
|
if (posY > (dropIndex + 1) * graphHeight - graphHeight / 2.0) {
|
|
448
|
|
|
|
449
|
dropIndex += 1;
|
|
449
|
QWidget::dropEvent(event);
|
|
|
450
|
}
|
|
450
|
}
|
|
|
451
|
|
|
451
|
|
|
|
452
|
if (helper.getCurrentDragWidget()) {
|
|
452
|
|
|
|
453
|
auto dragWidgetIndex = m_Layout->indexOf(helper.getCurrentDragWidget());
|
|
453
|
bool VisualizationDragDropContainer::VisualizationDragDropContainerPrivate::findPlaceHolderPosition(
|
|
|
454
|
if (dragWidgetIndex >= 0 && dragWidgetIndex <= dropIndex) {
|
|
454
|
const QPoint& pos, const QMimeData* mimeData, bool canInsert, bool canMerge,
|
|
|
455
|
// Correction of the index if the drop occurs in the same container
|
|
455
|
const VisualizationDragDropContainer* container)
|
|
|
456
|
// and if the drag is started from the visualization (in that case, the
|
|
456
|
{
|
|
|
457
|
// dragWidget is hidden)
|
|
457
|
auto& helper = sqpApp->dragDropGuiController();
|
|
|
458
|
dropIndex += 1;
|
|
458
|
|
|
|
459
|
}
|
|
459
|
auto absPos = container->mapToGlobal(pos);
|
|
|
460
|
}
|
|
460
|
auto isOnPlaceHolder = helper.placeHolder().isAncestorOf(sqpApp->widgetAt(absPos));
|
|
|
461
|
|
|
461
|
|
|
|
462
|
if (dropIndex != placeHolderIndex) {
|
|
462
|
if (countDragWidget(container, true) == 0)
|
|
|
463
|
helper.insertPlaceHolder(m_Layout, dropIndex, m_PlaceHolderType,
|
|
463
|
{
|
|
|
464
|
m_PlaceHolderText);
|
|
464
|
// Drop on an empty container, just add the placeHolder at the top
|
|
|
465
|
}
|
|
465
|
helper.insertPlaceHolder(m_Layout, 0, m_PlaceHolderType, m_PlaceHolderText);
|
|
|
466
|
|
|
466
|
}
|
|
|
467
|
helper.setHightlightedDragWidget(nullptr);
|
|
467
|
else if (!isOnPlaceHolder)
|
|
|
468
|
}
|
|
468
|
{
|
|
|
469
|
else if (canMerge && dragWidgetHovered) {
|
|
469
|
auto nbDragWidget = countDragWidget(container);
|
|
|
470
|
// drop on the middle -> merge
|
|
470
|
if (nbDragWidget > 0)
|
|
|
471
|
if (hasPlaceHolder()) {
|
|
471
|
{
|
|
|
472
|
helper.removePlaceHolder();
|
|
472
|
|
|
|
473
|
}
|
|
473
|
if (m_MinContainerHeight == 0)
|
|
|
474
|
|
|
474
|
{
|
|
|
475
|
helper.setHightlightedDragWidget(dragWidgetHovered);
|
|
475
|
m_MinContainerHeight = container->size().height();
|
|
|
476
|
}
|
|
476
|
}
|
|
|
477
|
else {
|
|
477
|
|
|
|
478
|
qCWarning(LOG_VisualizationDragDropContainer())
|
|
478
|
m_MinContainerHeight = qMin(m_MinContainerHeight, container->size().height());
|
|
|
479
|
<< tr("VisualizationDragDropContainer::findPlaceHolderPosition, no valid drop "
|
|
479
|
auto graphHeight = qMax(m_MinContainerHeight / nbDragWidget, GRAPH_MINIMUM_HEIGHT);
|
|
|
480
|
"action.");
|
|
480
|
|
|
|
481
|
}
|
|
481
|
auto posY = pos.y();
|
|
|
482
|
}
|
|
482
|
auto dropIndex = floor(posY / graphHeight);
|
|
|
483
|
else {
|
|
483
|
auto zoneSize = graphHeight / 4.0;
|
|
|
484
|
qCInfo(LOG_VisualizationDragDropContainer())
|
|
484
|
|
|
|
485
|
<< tr("VisualizationDragDropContainer::findPlaceHolderPosition, no widget "
|
|
485
|
|
|
|
486
|
"found in the "
|
|
486
|
auto isOnTop = posY < dropIndex * graphHeight + zoneSize;
|
|
|
487
|
"container");
|
|
487
|
auto isOnBottom = posY > (dropIndex + 1) * graphHeight - zoneSize;
|
|
|
488
|
}
|
|
488
|
|
|
|
489
|
}
|
|
489
|
auto placeHolderIndex = m_Layout->indexOf(&(helper.placeHolder()));
|
|
|
490
|
else {
|
|
490
|
|
|
|
491
|
// the mouse is hover the placeHolder
|
|
491
|
auto dragWidgetHovered = getChildDragWidgetAt(container, pos);
|
|
|
492
|
// Do nothing
|
|
492
|
|
|
|
493
|
}
|
|
493
|
auto acceptMerge = m_AcceptDragWidgetFun(dragWidgetHovered, mimeData);
|
|
|
494
|
|
|
494
|
|
|
|
495
|
return true;
|
|
495
|
if (canInsert && (isOnTop || isOnBottom || !canMerge || !acceptMerge))
|
|
|
496
|
}
|
|
496
|
{
|
|
|
|
|
|
497
|
if (posY > (dropIndex + 1) * graphHeight - graphHeight / 2.0)
|
|
|
|
|
|
498
|
{
|
|
|
|
|
|
499
|
dropIndex += 1;
|
|
|
|
|
|
500
|
}
|
|
|
|
|
|
501
|
|
|
|
|
|
|
502
|
if (helper.getCurrentDragWidget())
|
|
|
|
|
|
503
|
{
|
|
|
|
|
|
504
|
auto dragWidgetIndex = m_Layout->indexOf(helper.getCurrentDragWidget());
|
|
|
|
|
|
505
|
if (dragWidgetIndex >= 0 && dragWidgetIndex <= dropIndex)
|
|
|
|
|
|
506
|
{
|
|
|
|
|
|
507
|
// Correction of the index if the drop occurs in the same container
|
|
|
|
|
|
508
|
// and if the drag is started from the visualization (in that case, the
|
|
|
|
|
|
509
|
// dragWidget is hidden)
|
|
|
|
|
|
510
|
dropIndex += 1;
|
|
|
|
|
|
511
|
}
|
|
|
|
|
|
512
|
}
|
|
|
|
|
|
513
|
|
|
|
|
|
|
514
|
if (dropIndex != placeHolderIndex)
|
|
|
|
|
|
515
|
{
|
|
|
|
|
|
516
|
helper.insertPlaceHolder(
|
|
|
|
|
|
517
|
m_Layout, dropIndex, m_PlaceHolderType, m_PlaceHolderText);
|
|
|
|
|
|
518
|
}
|
|
|
|
|
|
519
|
|
|
|
|
|
|
520
|
helper.setHightlightedDragWidget(nullptr);
|
|
|
|
|
|
521
|
}
|
|
|
|
|
|
522
|
else if (canMerge && dragWidgetHovered)
|
|
|
|
|
|
523
|
{
|
|
|
|
|
|
524
|
// drop on the middle -> merge
|
|
|
|
|
|
525
|
if (hasPlaceHolder())
|
|
|
|
|
|
526
|
{
|
|
|
|
|
|
527
|
helper.removePlaceHolder();
|
|
|
|
|
|
528
|
}
|
|
|
|
|
|
529
|
|
|
|
|
|
|
530
|
helper.setHightlightedDragWidget(dragWidgetHovered);
|
|
|
|
|
|
531
|
}
|
|
|
|
|
|
532
|
else
|
|
|
|
|
|
533
|
{
|
|
|
|
|
|
534
|
qCWarning(LOG_VisualizationDragDropContainer())
|
|
|
|
|
|
535
|
<< tr("VisualizationDragDropContainer::findPlaceHolderPosition, no valid drop "
|
|
|
|
|
|
536
|
"action.");
|
|
|
|
|
|
537
|
}
|
|
|
|
|
|
538
|
}
|
|
|
|
|
|
539
|
else
|
|
|
|
|
|
540
|
{
|
|
|
|
|
|
541
|
qCInfo(LOG_VisualizationDragDropContainer())
|
|
|
|
|
|
542
|
<< tr("VisualizationDragDropContainer::findPlaceHolderPosition, no widget "
|
|
|
|
|
|
543
|
"found in the "
|
|
|
|
|
|
544
|
"container");
|
|
|
|
|
|
545
|
}
|
|
|
|
|
|
546
|
}
|
|
|
|
|
|
547
|
else
|
|
|
|
|
|
548
|
{
|
|
|
|
|
|
549
|
// the mouse is hover the placeHolder
|
|
|
|
|
|
550
|
// Do nothing
|
|
|
|
|
|
551
|
}
|
|
|
|
|
|
552
|
|
|
|
|
|
|
553
|
return true;
|
|
|
|
|
|
554
|
}
|
