@@ -1,453 +1,452 | |||||
1 | #include "Visualization/VisualizationDragDropContainer.h" |
|
1 | #include "Visualization/VisualizationDragDropContainer.h" | |
2 | #include "DragAndDrop/DragDropHelper.h" |
|
2 | #include "DragAndDrop/DragDropHelper.h" | |
3 | #include "SqpApplication.h" |
|
3 | #include "SqpApplication.h" | |
4 | #include "Visualization/VisualizationDragWidget.h" |
|
4 | #include "Visualization/VisualizationDragWidget.h" | |
5 |
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5 | |||
6 | #include "Common/VisualizationDef.h" |
|
6 | #include "Common/VisualizationDef.h" | |
7 |
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7 | |||
8 | #include <QDrag> |
|
8 | #include <QDrag> | |
9 | #include <QDragEnterEvent> |
|
9 | #include <QDragEnterEvent> | |
10 | #include <QVBoxLayout> |
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10 | #include <QVBoxLayout> | |
11 |
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11 | |||
12 | #include <cmath> |
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12 | #include <cmath> | |
13 | #include <memory> |
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13 | #include <memory> | |
14 |
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14 | |||
15 | Q_LOGGING_CATEGORY(LOG_VisualizationDragDropContainer, "VisualizationDragDropContainer") |
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15 | Q_LOGGING_CATEGORY(LOG_VisualizationDragDropContainer, "VisualizationDragDropContainer") | |
16 |
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16 | |||
17 | struct VisualizationDragDropContainer::VisualizationDragDropContainerPrivate { |
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17 | struct VisualizationDragDropContainer::VisualizationDragDropContainerPrivate { | |
18 |
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18 | |||
19 | QVBoxLayout *m_Layout; |
|
19 | QVBoxLayout *m_Layout; | |
20 | QHash<QString, VisualizationDragDropContainer::DropBehavior> m_AcceptedMimeTypes; |
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20 | QHash<QString, VisualizationDragDropContainer::DropBehavior> m_AcceptedMimeTypes; | |
21 | QString m_PlaceHolderText; |
|
21 | QString m_PlaceHolderText; | |
22 | DragDropHelper::PlaceHolderType m_PlaceHolderType = DragDropHelper::PlaceHolderType::Graph; |
|
22 | DragDropHelper::PlaceHolderType m_PlaceHolderType = DragDropHelper::PlaceHolderType::Graph; | |
23 |
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23 | |||
24 | VisualizationDragDropContainer::AcceptMimeDataFunction m_AcceptMimeDataFun |
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24 | VisualizationDragDropContainer::AcceptMimeDataFunction m_AcceptMimeDataFun | |
25 | = [](auto mimeData) { return true; }; |
|
25 | = [](auto mimeData) { return true; }; | |
26 |
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26 | |||
27 | int m_MinContainerHeight = 0; |
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27 | int m_MinContainerHeight = 0; | |
28 |
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28 | |||
29 | explicit VisualizationDragDropContainerPrivate(QWidget *widget) |
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29 | explicit VisualizationDragDropContainerPrivate(QWidget *widget) | |
30 | { |
|
30 | { | |
31 | m_Layout = new QVBoxLayout(widget); |
|
31 | m_Layout = new QVBoxLayout(widget); | |
32 | m_Layout->setContentsMargins(0, 0, 0, 0); |
|
32 | m_Layout->setContentsMargins(0, 0, 0, 0); | |
33 | } |
|
33 | } | |
34 |
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34 | |||
35 | bool acceptMimeData(const QMimeData *data) const |
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35 | bool acceptMimeData(const QMimeData *data) const | |
36 | { |
|
36 | { | |
37 | for (const auto &type : m_AcceptedMimeTypes.keys()) { |
|
37 | for (const auto &type : m_AcceptedMimeTypes.keys()) { | |
38 | if (data->hasFormat(type) && m_AcceptMimeDataFun(data)) { |
|
38 | if (data->hasFormat(type) && m_AcceptMimeDataFun(data)) { | |
39 | return true; |
|
39 | return true; | |
40 | } |
|
40 | } | |
41 | } |
|
41 | } | |
42 |
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42 | |||
43 | return false; |
|
43 | return false; | |
44 | } |
|
44 | } | |
45 |
|
45 | |||
46 | bool allowMergeForMimeData(const QMimeData *data) const |
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46 | bool allowMergeForMimeData(const QMimeData *data) const | |
47 | { |
|
47 | { | |
48 | bool result = false; |
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48 | bool result = false; | |
49 | for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd(); |
|
49 | for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd(); | |
50 | ++it) { |
|
50 | ++it) { | |
51 |
|
51 | |||
52 | if (data->hasFormat(it.key()) |
|
52 | if (data->hasFormat(it.key()) | |
53 | && (it.value() == VisualizationDragDropContainer::DropBehavior::Merged |
|
53 | && (it.value() == VisualizationDragDropContainer::DropBehavior::Merged | |
54 | || it.value() |
|
54 | || it.value() | |
55 | == VisualizationDragDropContainer::DropBehavior::InsertedAndMerged)) { |
|
55 | == VisualizationDragDropContainer::DropBehavior::InsertedAndMerged)) { | |
56 | result = true; |
|
56 | result = true; | |
57 | } |
|
57 | } | |
58 | else if (data->hasFormat(it.key()) |
|
58 | else if (data->hasFormat(it.key()) | |
59 | && it.value() == VisualizationDragDropContainer::DropBehavior::Inserted) { |
|
59 | && it.value() == VisualizationDragDropContainer::DropBehavior::Inserted) { | |
60 | // Merge is forbidden if the mime data contain an acceptable type which cannot be |
|
60 | // Merge is forbidden if the mime data contain an acceptable type which cannot be | |
61 | // merged |
|
61 | // merged | |
62 | result = false; |
|
62 | result = false; | |
63 | break; |
|
63 | break; | |
64 | } |
|
64 | } | |
65 | } |
|
65 | } | |
66 |
|
66 | |||
67 | return result; |
|
67 | return result; | |
68 | } |
|
68 | } | |
69 |
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69 | |||
70 | bool allowInsertForMimeData(const QMimeData *data) const |
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70 | bool allowInsertForMimeData(const QMimeData *data) const | |
71 | { |
|
71 | { | |
72 | for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd(); |
|
72 | for (auto it = m_AcceptedMimeTypes.constBegin(); it != m_AcceptedMimeTypes.constEnd(); | |
73 | ++it) { |
|
73 | ++it) { | |
74 | if (data->hasFormat(it.key()) |
|
74 | if (data->hasFormat(it.key()) | |
75 | && (it.value() == VisualizationDragDropContainer::DropBehavior::Inserted |
|
75 | && (it.value() == VisualizationDragDropContainer::DropBehavior::Inserted | |
76 | || it.value() |
|
76 | || it.value() | |
77 | == VisualizationDragDropContainer::DropBehavior::InsertedAndMerged)) { |
|
77 | == VisualizationDragDropContainer::DropBehavior::InsertedAndMerged)) { | |
78 | return true; |
|
78 | return true; | |
79 | } |
|
79 | } | |
80 | } |
|
80 | } | |
81 |
|
81 | |||
82 | return false; |
|
82 | return false; | |
83 | } |
|
83 | } | |
84 |
|
84 | |||
85 | bool hasPlaceHolder() const |
|
85 | bool hasPlaceHolder() const | |
86 | { |
|
86 | { | |
87 | return sqpApp->dragDropHelper().placeHolder().parentWidget() == m_Layout->parentWidget(); |
|
87 | return sqpApp->dragDropHelper().placeHolder().parentWidget() == m_Layout->parentWidget(); | |
88 | } |
|
88 | } | |
89 |
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89 | |||
90 | VisualizationDragWidget *getChildDragWidgetAt(const QWidget *parent, const QPoint &pos) const |
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90 | VisualizationDragWidget *getChildDragWidgetAt(const QWidget *parent, const QPoint &pos) const | |
91 | { |
|
91 | { | |
92 | VisualizationDragWidget *dragWidget = nullptr; |
|
92 | VisualizationDragWidget *dragWidget = nullptr; | |
93 |
|
93 | |||
94 | for (auto child : parent->children()) { |
|
94 | for (auto child : parent->children()) { | |
95 | auto widget = qobject_cast<VisualizationDragWidget *>(child); |
|
95 | auto widget = qobject_cast<VisualizationDragWidget *>(child); | |
96 | if (widget && widget->isVisible()) { |
|
96 | if (widget && widget->isVisible()) { | |
97 | if (widget->frameGeometry().contains(pos)) { |
|
97 | if (widget->frameGeometry().contains(pos)) { | |
98 | dragWidget = widget; |
|
98 | dragWidget = widget; | |
99 | break; |
|
99 | break; | |
100 | } |
|
100 | } | |
101 | } |
|
101 | } | |
102 | } |
|
102 | } | |
103 |
|
103 | |||
104 | return dragWidget; |
|
104 | return dragWidget; | |
105 | } |
|
105 | } | |
106 |
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106 | |||
107 | bool cursorIsInContainer(QWidget *container) const |
|
107 | bool cursorIsInContainer(QWidget *container) const | |
108 | { |
|
108 | { | |
109 | return container->isAncestorOf(sqpApp->widgetAt(QCursor::pos())); |
|
109 | return container->isAncestorOf(sqpApp->widgetAt(QCursor::pos())); | |
110 | } |
|
110 | } | |
111 |
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111 | |||
112 | int countDragWidget(const QWidget *parent, bool onlyVisible = false) const |
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112 | int countDragWidget(const QWidget *parent, bool onlyVisible = false) const | |
113 | { |
|
113 | { | |
114 | auto nbGraph = 0; |
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114 | auto nbGraph = 0; | |
115 | for (auto child : parent->children()) { |
|
115 | for (auto child : parent->children()) { | |
116 | if (qobject_cast<VisualizationDragWidget *>(child)) { |
|
116 | if (qobject_cast<VisualizationDragWidget *>(child)) { | |
117 | if (!onlyVisible || qobject_cast<VisualizationDragWidget *>(child)->isVisible()) { |
|
117 | if (!onlyVisible || qobject_cast<VisualizationDragWidget *>(child)->isVisible()) { | |
118 | nbGraph += 1; |
|
118 | nbGraph += 1; | |
119 | } |
|
119 | } | |
120 | } |
|
120 | } | |
121 | } |
|
121 | } | |
122 |
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122 | |||
123 | return nbGraph; |
|
123 | return nbGraph; | |
124 | } |
|
124 | } | |
125 |
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125 | |||
126 | void findPlaceHolderPosition(const QPoint &pos, bool canInsert, bool canMerge, |
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126 | void findPlaceHolderPosition(const QPoint &pos, bool canInsert, bool canMerge, | |
127 | const VisualizationDragDropContainer *container); |
|
127 | const VisualizationDragDropContainer *container); | |
128 | }; |
|
128 | }; | |
129 |
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129 | |||
130 | VisualizationDragDropContainer::VisualizationDragDropContainer(QWidget *parent) |
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130 | VisualizationDragDropContainer::VisualizationDragDropContainer(QWidget *parent) | |
131 | : QFrame{parent}, |
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131 | : QFrame{parent}, | |
132 | impl{spimpl::make_unique_impl<VisualizationDragDropContainerPrivate>(this)} |
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132 | impl{spimpl::make_unique_impl<VisualizationDragDropContainerPrivate>(this)} | |
133 | { |
|
133 | { | |
134 | setAcceptDrops(true); |
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134 | setAcceptDrops(true); | |
135 | } |
|
135 | } | |
136 |
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136 | |||
137 | void VisualizationDragDropContainer::addDragWidget(VisualizationDragWidget *dragWidget) |
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137 | void VisualizationDragDropContainer::addDragWidget(VisualizationDragWidget *dragWidget) | |
138 | { |
|
138 | { | |
139 | impl->m_Layout->addWidget(dragWidget); |
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139 | impl->m_Layout->addWidget(dragWidget); | |
140 | disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr); |
|
140 | disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr); | |
141 | connect(dragWidget, &VisualizationDragWidget::dragDetected, this, |
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141 | connect(dragWidget, &VisualizationDragWidget::dragDetected, this, | |
142 | &VisualizationDragDropContainer::startDrag); |
|
142 | &VisualizationDragDropContainer::startDrag); | |
143 | } |
|
143 | } | |
144 |
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144 | |||
145 | void VisualizationDragDropContainer::insertDragWidget(int index, |
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145 | void VisualizationDragDropContainer::insertDragWidget(int index, | |
146 | VisualizationDragWidget *dragWidget) |
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146 | VisualizationDragWidget *dragWidget) | |
147 | { |
|
147 | { | |
148 | impl->m_Layout->insertWidget(index, dragWidget); |
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148 | impl->m_Layout->insertWidget(index, dragWidget); | |
149 | disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr); |
|
149 | disconnect(dragWidget, &VisualizationDragWidget::dragDetected, nullptr, nullptr); | |
150 | connect(dragWidget, &VisualizationDragWidget::dragDetected, this, |
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150 | connect(dragWidget, &VisualizationDragWidget::dragDetected, this, | |
151 | &VisualizationDragDropContainer::startDrag); |
|
151 | &VisualizationDragDropContainer::startDrag); | |
152 | } |
|
152 | } | |
153 |
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153 | |||
154 | void VisualizationDragDropContainer::addAcceptedMimeType( |
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154 | void VisualizationDragDropContainer::addAcceptedMimeType( | |
155 | const QString &mimeType, VisualizationDragDropContainer::DropBehavior behavior) |
|
155 | const QString &mimeType, VisualizationDragDropContainer::DropBehavior behavior) | |
156 | { |
|
156 | { | |
157 | impl->m_AcceptedMimeTypes[mimeType] = behavior; |
|
157 | impl->m_AcceptedMimeTypes[mimeType] = behavior; | |
158 | } |
|
158 | } | |
159 |
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159 | |||
160 | int VisualizationDragDropContainer::countDragWidget() const |
|
160 | int VisualizationDragDropContainer::countDragWidget() const | |
161 | { |
|
161 | { | |
162 | return impl->countDragWidget(this); |
|
162 | return impl->countDragWidget(this); | |
163 | } |
|
163 | } | |
164 |
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164 | |||
165 | void VisualizationDragDropContainer::setAcceptMimeDataFunction( |
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165 | void VisualizationDragDropContainer::setAcceptMimeDataFunction( | |
166 | VisualizationDragDropContainer::AcceptMimeDataFunction fun) |
|
166 | VisualizationDragDropContainer::AcceptMimeDataFunction fun) | |
167 | { |
|
167 | { | |
168 | impl->m_AcceptMimeDataFun = fun; |
|
168 | impl->m_AcceptMimeDataFun = fun; | |
169 | } |
|
169 | } | |
170 |
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170 | |||
171 | void VisualizationDragDropContainer::setPlaceHolderType(DragDropHelper::PlaceHolderType type, |
|
171 | void VisualizationDragDropContainer::setPlaceHolderType(DragDropHelper::PlaceHolderType type, | |
172 | const QString &placeHolderText) |
|
172 | const QString &placeHolderText) | |
173 | { |
|
173 | { | |
174 | impl->m_PlaceHolderType = type; |
|
174 | impl->m_PlaceHolderType = type; | |
175 | impl->m_PlaceHolderText = placeHolderText; |
|
175 | impl->m_PlaceHolderText = placeHolderText; | |
176 | } |
|
176 | } | |
177 |
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177 | |||
178 | void VisualizationDragDropContainer::startDrag(VisualizationDragWidget *dragWidget, |
|
178 | void VisualizationDragDropContainer::startDrag(VisualizationDragWidget *dragWidget, | |
179 | const QPoint &dragPosition) |
|
179 | const QPoint &dragPosition) | |
180 | { |
|
180 | { | |
181 | auto &helper = sqpApp->dragDropHelper(); |
|
181 | auto &helper = sqpApp->dragDropHelper(); | |
182 | helper.resetDragAndDrop(); |
|
182 | helper.resetDragAndDrop(); | |
183 |
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183 | |||
184 | // Note: The management of the drag object is done by Qt |
|
184 | // Note: The management of the drag object is done by Qt | |
185 | auto drag = new QDrag{dragWidget}; |
|
185 | auto drag = new QDrag{dragWidget}; | |
186 | drag->setHotSpot(dragPosition); |
|
186 | drag->setHotSpot(dragPosition); | |
187 |
|
187 | |||
188 | auto mimeData = dragWidget->mimeData(); |
|
188 | auto mimeData = dragWidget->mimeData(); | |
189 | drag->setMimeData(mimeData); |
|
189 | drag->setMimeData(mimeData); | |
190 |
|
190 | |||
191 | auto pixmap = QPixmap(dragWidget->size()); |
|
191 | auto pixmap = QPixmap(dragWidget->size()); | |
192 | dragWidget->render(&pixmap); |
|
192 | dragWidget->render(&pixmap); | |
193 | drag->setPixmap(pixmap); |
|
193 | drag->setPixmap(pixmap); | |
194 |
|
194 | |||
195 | auto image = pixmap.toImage(); |
|
195 | auto image = pixmap.toImage(); | |
196 | mimeData->setImageData(image); |
|
196 | mimeData->setImageData(image); | |
197 | mimeData->setUrls({helper.imageTemporaryUrl(image)}); |
|
197 | mimeData->setUrls({helper.imageTemporaryUrl(image)}); | |
198 |
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198 | |||
199 | if (impl->m_Layout->indexOf(dragWidget) >= 0) { |
|
199 | if (impl->m_Layout->indexOf(dragWidget) >= 0) { | |
200 | helper.setCurrentDragWidget(dragWidget); |
|
200 | helper.setCurrentDragWidget(dragWidget); | |
201 |
|
201 | |||
202 | if (impl->cursorIsInContainer(this)) { |
|
202 | if (impl->cursorIsInContainer(this)) { | |
203 | auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget); |
|
203 | auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget); | |
204 | helper.insertPlaceHolder(impl->m_Layout, dragWidgetIndex, impl->m_PlaceHolderType, |
|
204 | helper.insertPlaceHolder(impl->m_Layout, dragWidgetIndex, impl->m_PlaceHolderType, | |
205 | impl->m_PlaceHolderText); |
|
205 | impl->m_PlaceHolderText); | |
206 | dragWidget->setVisible(false); |
|
206 | dragWidget->setVisible(false); | |
207 | } |
|
207 | } | |
208 | else { |
|
208 | else { | |
209 | // The drag starts directly outside the drop zone |
|
209 | // The drag starts directly outside the drop zone | |
210 | // do not add the placeHolder |
|
210 | // do not add the placeHolder | |
211 | } |
|
211 | } | |
212 |
|
212 | |||
213 | // Note: The exec() is blocking on windows but not on linux and macOS |
|
213 | // Note: The exec() is blocking on windows but not on linux and macOS | |
214 | drag->exec(Qt::MoveAction | Qt::CopyAction); |
|
214 | drag->exec(Qt::MoveAction | Qt::CopyAction); | |
215 | } |
|
215 | } | |
216 | else { |
|
216 | else { | |
217 | qCWarning(LOG_VisualizationDragDropContainer()) |
|
217 | qCWarning(LOG_VisualizationDragDropContainer()) | |
218 | << tr("VisualizationDragDropContainer::startDrag, drag aborted, the specified " |
|
218 | << tr("VisualizationDragDropContainer::startDrag, drag aborted, the specified " | |
219 | "VisualizationDragWidget is not found in this container."); |
|
219 | "VisualizationDragWidget is not found in this container."); | |
220 | } |
|
220 | } | |
221 | } |
|
221 | } | |
222 |
|
222 | |||
223 | void VisualizationDragDropContainer::dragEnterEvent(QDragEnterEvent *event) |
|
223 | void VisualizationDragDropContainer::dragEnterEvent(QDragEnterEvent *event) | |
224 | { |
|
224 | { | |
225 | if (impl->acceptMimeData(event->mimeData())) { |
|
225 | if (impl->acceptMimeData(event->mimeData())) { | |
226 | event->acceptProposedAction(); |
|
226 | event->acceptProposedAction(); | |
227 |
|
227 | |||
228 | auto &helper = sqpApp->dragDropHelper(); |
|
228 | auto &helper = sqpApp->dragDropHelper(); | |
229 |
|
229 | |||
230 | if (!impl->hasPlaceHolder()) { |
|
230 | if (!impl->hasPlaceHolder()) { | |
231 | auto dragWidget = helper.getCurrentDragWidget(); |
|
231 | auto dragWidget = helper.getCurrentDragWidget(); | |
232 |
|
232 | |||
233 | if (dragWidget) { |
|
233 | if (dragWidget) { | |
234 | // If the drag&drop is internal to the visualization, entering the container hide |
|
234 | // If the drag&drop is internal to the visualization, entering the container hide | |
235 | // the dragWidget which was made visible by the dragLeaveEvent |
|
235 | // the dragWidget which was made visible by the dragLeaveEvent | |
236 | auto parentWidget |
|
236 | auto parentWidget | |
237 | = qobject_cast<VisualizationDragDropContainer *>(dragWidget->parentWidget()); |
|
237 | = qobject_cast<VisualizationDragDropContainer *>(dragWidget->parentWidget()); | |
238 | if (parentWidget) { |
|
238 | if (parentWidget) { | |
239 | dragWidget->setVisible(false); |
|
239 | dragWidget->setVisible(false); | |
240 | } |
|
240 | } | |
241 | } |
|
241 | } | |
242 |
|
242 | |||
243 | auto canMerge = impl->allowMergeForMimeData(event->mimeData()); |
|
243 | auto canMerge = impl->allowMergeForMimeData(event->mimeData()); | |
244 | auto canInsert = impl->allowInsertForMimeData(event->mimeData()); |
|
244 | auto canInsert = impl->allowInsertForMimeData(event->mimeData()); | |
245 | impl->findPlaceHolderPosition(event->pos(), canInsert, canMerge, this); |
|
245 | impl->findPlaceHolderPosition(event->pos(), canInsert, canMerge, this); | |
246 | } |
|
246 | } | |
247 | else { |
|
247 | else { | |
248 | // do nothing |
|
248 | // do nothing | |
249 | } |
|
249 | } | |
250 | } |
|
250 | } | |
251 | else { |
|
251 | else { | |
252 | event->ignore(); |
|
252 | event->ignore(); | |
253 | } |
|
253 | } | |
254 |
|
254 | |||
255 | QWidget::dragEnterEvent(event); |
|
255 | QWidget::dragEnterEvent(event); | |
256 | } |
|
256 | } | |
257 |
|
257 | |||
258 | void VisualizationDragDropContainer::dragLeaveEvent(QDragLeaveEvent *event) |
|
258 | void VisualizationDragDropContainer::dragLeaveEvent(QDragLeaveEvent *event) | |
259 | { |
|
259 | { | |
260 | Q_UNUSED(event); |
|
260 | Q_UNUSED(event); | |
261 |
|
261 | |||
262 | auto &helper = sqpApp->dragDropHelper(); |
|
262 | auto &helper = sqpApp->dragDropHelper(); | |
263 |
|
263 | |||
264 | if (!impl->cursorIsInContainer(this)) { |
|
264 | if (!impl->cursorIsInContainer(this)) { | |
265 | helper.removePlaceHolder(); |
|
265 | helper.removePlaceHolder(); | |
266 | helper.setHightlightedDragWidget(nullptr); |
|
266 | helper.setHightlightedDragWidget(nullptr); | |
267 | impl->m_MinContainerHeight = 0; |
|
267 | impl->m_MinContainerHeight = 0; | |
268 |
|
268 | |||
269 | auto dragWidget = helper.getCurrentDragWidget(); |
|
269 | auto dragWidget = helper.getCurrentDragWidget(); | |
270 | if (dragWidget) { |
|
270 | if (dragWidget) { | |
271 | // dragWidget has a value only if the drag is started from the visualization |
|
271 | // dragWidget has a value only if the drag is started from the visualization | |
272 | // In that case, shows the drag widget at its original place |
|
272 | // In that case, shows the drag widget at its original place | |
273 | // So the drag widget doesn't stay hidden if the drop occurs outside the visualization |
|
273 | // So the drag widget doesn't stay hidden if the drop occurs outside the visualization | |
274 | // drop zone (It is not possible to catch a drop event outside of the application) |
|
274 | // drop zone (It is not possible to catch a drop event outside of the application) | |
275 |
|
275 | |||
276 | if (dragWidget) { |
|
276 | if (dragWidget) { | |
277 | dragWidget->setVisible(true); |
|
277 | dragWidget->setVisible(true); | |
278 | } |
|
278 | } | |
279 | } |
|
279 | } | |
280 | } |
|
280 | } | |
281 | else { |
|
281 | else { | |
282 | // Leave event probably received for a child widget. |
|
282 | // Leave event probably received for a child widget. | |
283 | // Do nothing. |
|
283 | // Do nothing. | |
284 | // Note: The DragLeave event, doesn't have any mean to determine who sent it. |
|
284 | // Note: The DragLeave event, doesn't have any mean to determine who sent it. | |
285 | } |
|
285 | } | |
286 |
|
286 | |||
287 | QWidget::dragLeaveEvent(event); |
|
287 | QWidget::dragLeaveEvent(event); | |
288 | } |
|
288 | } | |
289 |
|
289 | |||
290 | void VisualizationDragDropContainer::dragMoveEvent(QDragMoveEvent *event) |
|
290 | void VisualizationDragDropContainer::dragMoveEvent(QDragMoveEvent *event) | |
291 | { |
|
291 | { | |
292 | if (impl->acceptMimeData(event->mimeData())) { |
|
292 | if (impl->acceptMimeData(event->mimeData())) { | |
293 | auto canMerge = impl->allowMergeForMimeData(event->mimeData()); |
|
293 | auto canMerge = impl->allowMergeForMimeData(event->mimeData()); | |
294 | auto canInsert = impl->allowInsertForMimeData(event->mimeData()); |
|
294 | auto canInsert = impl->allowInsertForMimeData(event->mimeData()); | |
295 | impl->findPlaceHolderPosition(event->pos(), canInsert, canMerge, this); |
|
295 | impl->findPlaceHolderPosition(event->pos(), canInsert, canMerge, this); | |
296 | } |
|
296 | } | |
297 | else { |
|
297 | else { | |
298 | event->ignore(); |
|
298 | event->ignore(); | |
299 | } |
|
299 | } | |
300 |
|
300 | |||
301 | QWidget::dragMoveEvent(event); |
|
301 | QWidget::dragMoveEvent(event); | |
302 | } |
|
302 | } | |
303 |
|
303 | |||
304 | void VisualizationDragDropContainer::dropEvent(QDropEvent *event) |
|
304 | void VisualizationDragDropContainer::dropEvent(QDropEvent *event) | |
305 | { |
|
305 | { | |
306 | auto &helper = sqpApp->dragDropHelper(); |
|
306 | auto &helper = sqpApp->dragDropHelper(); | |
307 |
|
307 | |||
308 | if (impl->acceptMimeData(event->mimeData())) { |
|
308 | if (impl->acceptMimeData(event->mimeData())) { | |
309 | auto dragWidget = helper.getCurrentDragWidget(); |
|
309 | auto dragWidget = helper.getCurrentDragWidget(); | |
310 | if (impl->hasPlaceHolder()) { |
|
310 | if (impl->hasPlaceHolder()) { | |
311 | // drop where the placeHolder is located |
|
311 | // drop where the placeHolder is located | |
312 |
|
312 | |||
313 | auto canInsert = impl->allowInsertForMimeData(event->mimeData()); |
|
313 | auto canInsert = impl->allowInsertForMimeData(event->mimeData()); | |
314 | if (canInsert) { |
|
314 | if (canInsert) { | |
315 | auto droppedIndex = impl->m_Layout->indexOf(&helper.placeHolder()); |
|
315 | auto droppedIndex = impl->m_Layout->indexOf(&helper.placeHolder()); | |
316 |
|
316 | |||
317 | if (dragWidget) { |
|
317 | if (dragWidget) { | |
318 | auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget); |
|
318 | auto dragWidgetIndex = impl->m_Layout->indexOf(dragWidget); | |
319 | if (dragWidgetIndex >= 0 && dragWidgetIndex < droppedIndex) { |
|
319 | if (dragWidgetIndex >= 0 && dragWidgetIndex < droppedIndex) { | |
320 | // Correction of the index if the drop occurs in the same container |
|
320 | // Correction of the index if the drop occurs in the same container | |
321 | // and if the drag is started from the visualization (in that case, the |
|
321 | // and if the drag is started from the visualization (in that case, the | |
322 | // dragWidget is hidden) |
|
322 | // dragWidget is hidden) | |
323 | droppedIndex -= 1; |
|
323 | droppedIndex -= 1; | |
324 | } |
|
324 | } | |
325 |
|
325 | |||
326 | dragWidget->setVisible(true); |
|
326 | dragWidget->setVisible(true); | |
327 | } |
|
327 | } | |
328 |
|
328 | |||
329 | event->acceptProposedAction(); |
|
329 | event->acceptProposedAction(); | |
330 |
|
330 | |||
331 | helper.removePlaceHolder(); |
|
331 | helper.removePlaceHolder(); | |
332 |
|
332 | |||
333 | emit dropOccuredInContainer(droppedIndex, event->mimeData()); |
|
333 | emit dropOccuredInContainer(droppedIndex, event->mimeData()); | |
334 | } |
|
334 | } | |
335 | else { |
|
335 | else { | |
336 | qCWarning(LOG_VisualizationDragDropContainer()) << tr( |
|
336 | qCWarning(LOG_VisualizationDragDropContainer()) << tr( | |
337 | "VisualizationDragDropContainer::dropEvent, dropping on the placeHolder, but " |
|
337 | "VisualizationDragDropContainer::dropEvent, dropping on the placeHolder, but " | |
338 | "the insertion is forbidden."); |
|
338 | "the insertion is forbidden."); | |
339 | Q_ASSERT(false); |
|
339 | Q_ASSERT(false); | |
340 | } |
|
340 | } | |
341 | } |
|
341 | } | |
342 | else if (helper.getHightlightedDragWidget()) { |
|
342 | else if (helper.getHightlightedDragWidget()) { | |
343 | // drop on the highlighted widget |
|
343 | // drop on the highlighted widget | |
344 |
|
344 | |||
345 | auto canMerge = impl->allowMergeForMimeData(event->mimeData()); |
|
345 | auto canMerge = impl->allowMergeForMimeData(event->mimeData()); | |
346 | if (canMerge) { |
|
346 | if (canMerge) { | |
347 | event->acceptProposedAction(); |
|
347 | event->acceptProposedAction(); | |
348 | emit dropOccuredOnWidget(helper.getHightlightedDragWidget(), event->mimeData()); |
|
348 | emit dropOccuredOnWidget(helper.getHightlightedDragWidget(), event->mimeData()); | |
349 | } |
|
349 | } | |
350 | else { |
|
350 | else { | |
351 | qCWarning(LOG_VisualizationDragDropContainer()) |
|
351 | qCWarning(LOG_VisualizationDragDropContainer()) | |
352 | << tr("VisualizationDragDropContainer::dropEvent, dropping on a widget, but " |
|
352 | << tr("VisualizationDragDropContainer::dropEvent, dropping on a widget, but " | |
353 | "the merge is forbidden."); |
|
353 | "the merge is forbidden."); | |
354 | Q_ASSERT(false); |
|
354 | Q_ASSERT(false); | |
355 | } |
|
355 | } | |
356 | } |
|
356 | } | |
357 | } |
|
357 | } | |
358 | else { |
|
358 | else { | |
359 | event->ignore(); |
|
359 | event->ignore(); | |
360 | } |
|
360 | } | |
361 |
|
361 | |||
362 | sqpApp->dragDropHelper().setHightlightedDragWidget(nullptr); |
|
362 | sqpApp->dragDropHelper().setHightlightedDragWidget(nullptr); | |
363 | impl->m_MinContainerHeight = 0; |
|
363 | impl->m_MinContainerHeight = 0; | |
364 |
|
364 | |||
365 | QWidget::dropEvent(event); |
|
365 | QWidget::dropEvent(event); | |
366 | } |
|
366 | } | |
367 |
|
367 | |||
368 |
|
368 | |||
369 | void VisualizationDragDropContainer::VisualizationDragDropContainerPrivate::findPlaceHolderPosition( |
|
369 | void VisualizationDragDropContainer::VisualizationDragDropContainerPrivate::findPlaceHolderPosition( | |
370 | const QPoint &pos, bool canInsert, bool canMerge, |
|
370 | const QPoint &pos, bool canInsert, bool canMerge, | |
371 | const VisualizationDragDropContainer *container) |
|
371 | const VisualizationDragDropContainer *container) | |
372 | { |
|
372 | { | |
373 | auto &helper = sqpApp->dragDropHelper(); |
|
373 | auto &helper = sqpApp->dragDropHelper(); | |
374 |
|
374 | |||
375 | auto absPos = container->mapToGlobal(pos); |
|
375 | auto absPos = container->mapToGlobal(pos); | |
376 | auto isOnPlaceHolder = sqpApp->widgetAt(absPos) == &(helper.placeHolder()); |
|
376 | auto isOnPlaceHolder = sqpApp->widgetAt(absPos) == &(helper.placeHolder()); | |
377 |
|
377 | |||
378 | if (countDragWidget(container, true) == 0) { |
|
378 | if (countDragWidget(container, true) == 0) { | |
379 | // Drop on an empty container, just add the placeHolder at the top |
|
379 | // Drop on an empty container, just add the placeHolder at the top | |
380 | helper.insertPlaceHolder(m_Layout, 0, m_PlaceHolderType, m_PlaceHolderText); |
|
380 | helper.insertPlaceHolder(m_Layout, 0, m_PlaceHolderType, m_PlaceHolderText); | |
381 | } |
|
381 | } | |
382 | else if (!isOnPlaceHolder) { |
|
382 | else if (!isOnPlaceHolder) { | |
383 | auto nbDragWidget = countDragWidget(container); |
|
383 | auto nbDragWidget = countDragWidget(container); | |
384 | if (nbDragWidget > 0) { |
|
384 | if (nbDragWidget > 0) { | |
385 |
|
385 | |||
386 | if (m_MinContainerHeight == 0) { |
|
386 | if (m_MinContainerHeight == 0) { | |
387 | m_MinContainerHeight = container->size().height(); |
|
387 | m_MinContainerHeight = container->size().height(); | |
388 | } |
|
388 | } | |
389 |
|
389 | |||
390 | m_MinContainerHeight = qMin(m_MinContainerHeight, container->size().height()); |
|
390 | m_MinContainerHeight = qMin(m_MinContainerHeight, container->size().height()); | |
391 | auto graphHeight = qMax(m_MinContainerHeight / nbDragWidget, GRAPH_MINIMUM_HEIGHT); |
|
391 | auto graphHeight = qMax(m_MinContainerHeight / nbDragWidget, GRAPH_MINIMUM_HEIGHT); | |
392 |
|
392 | |||
393 | auto posY = pos.y(); |
|
393 | auto posY = pos.y(); | |
394 | auto dropIndex = floor(posY / graphHeight); |
|
394 | auto dropIndex = floor(posY / graphHeight); | |
395 | auto zoneSize = qMin(graphHeight / 4.0, 75.0); |
|
395 | auto zoneSize = qMin(graphHeight / 4.0, 75.0); | |
396 |
|
396 | |||
397 |
|
397 | |||
398 | auto isOnTop = posY < dropIndex * graphHeight + zoneSize; |
|
398 | auto isOnTop = posY < dropIndex * graphHeight + zoneSize; | |
399 | auto isOnBottom = posY > (dropIndex + 1) * graphHeight - zoneSize; |
|
399 | auto isOnBottom = posY > (dropIndex + 1) * graphHeight - zoneSize; | |
400 |
|
400 | |||
401 | auto placeHolderIndex = m_Layout->indexOf(&(helper.placeHolder())); |
|
401 | auto placeHolderIndex = m_Layout->indexOf(&(helper.placeHolder())); | |
402 |
|
402 | |||
403 | auto dragWidgetHovered = getChildDragWidgetAt(container, pos); |
|
403 | auto dragWidgetHovered = getChildDragWidgetAt(container, pos); | |
404 |
|
404 | |||
405 | if (canInsert && (isOnTop || isOnBottom || !canMerge)) { |
|
405 | if (canInsert && (isOnTop || isOnBottom || !canMerge)) { | |
406 | if (isOnBottom) { |
|
406 | if (isOnBottom) { | |
407 | dropIndex += 1; |
|
407 | dropIndex += 1; | |
408 | } |
|
408 | } | |
409 |
|
409 | |||
410 | if (helper.getCurrentDragWidget()) { |
|
410 | if (helper.getCurrentDragWidget()) { | |
411 | auto dragWidgetIndex = m_Layout->indexOf(helper.getCurrentDragWidget()); |
|
411 | auto dragWidgetIndex = m_Layout->indexOf(helper.getCurrentDragWidget()); | |
412 | if (dragWidgetIndex >= 0 && dragWidgetIndex <= dropIndex) { |
|
412 | if (dragWidgetIndex >= 0 && dragWidgetIndex <= dropIndex) { | |
413 | // Correction of the index if the drop occurs in the same container |
|
413 | // Correction of the index if the drop occurs in the same container | |
414 | // and if the drag is started from the visualization (in that case, the |
|
414 | // and if the drag is started from the visualization (in that case, the | |
415 | // dragWidget is hidden) |
|
415 | // dragWidget is hidden) | |
416 | dropIndex += 1; |
|
416 | dropIndex += 1; | |
417 | } |
|
417 | } | |
418 | } |
|
418 | } | |
419 |
|
419 | |||
420 | if (dropIndex != placeHolderIndex) { |
|
420 | if (dropIndex != placeHolderIndex) { | |
421 | helper.insertPlaceHolder(m_Layout, dropIndex, m_PlaceHolderType, |
|
421 | helper.insertPlaceHolder(m_Layout, dropIndex, m_PlaceHolderType, | |
422 | m_PlaceHolderText); |
|
422 | m_PlaceHolderText); | |
423 | } |
|
423 | } | |
424 |
|
424 | |||
425 | helper.setHightlightedDragWidget(nullptr); |
|
425 | helper.setHightlightedDragWidget(nullptr); | |
426 | } |
|
426 | } | |
427 | else if (canMerge && dragWidgetHovered) { |
|
427 | else if (canMerge && dragWidgetHovered) { | |
428 | // drop on the middle -> merge |
|
428 | // drop on the middle -> merge | |
429 | if (hasPlaceHolder()) { |
|
429 | if (hasPlaceHolder()) { | |
430 | helper.removePlaceHolder(); |
|
430 | helper.removePlaceHolder(); | |
431 | } |
|
431 | } | |
432 |
|
432 | |||
433 | helper.setHightlightedDragWidget(dragWidgetHovered); |
|
433 | helper.setHightlightedDragWidget(dragWidgetHovered); | |
434 | } |
|
434 | } | |
435 | else { |
|
435 | else { | |
436 | qCWarning(LOG_VisualizationDragDropContainer()) |
|
436 | qCWarning(LOG_VisualizationDragDropContainer()) | |
437 | << tr("VisualizationDragDropContainer::findPlaceHolderPosition, no valid drop " |
|
437 | << tr("VisualizationDragDropContainer::findPlaceHolderPosition, no valid drop " | |
438 | "action."); |
|
438 | "action."); | |
439 | Q_ASSERT(false); |
|
|||
440 | } |
|
439 | } | |
441 | } |
|
440 | } | |
442 | else { |
|
441 | else { | |
443 | qCWarning(LOG_VisualizationDragDropContainer()) |
|
442 | qCWarning(LOG_VisualizationDragDropContainer()) | |
444 | << tr("VisualizationDragDropContainer::findPlaceHolderPosition, no widget " |
|
443 | << tr("VisualizationDragDropContainer::findPlaceHolderPosition, no widget " | |
445 | "found in the " |
|
444 | "found in the " | |
446 | "container"); |
|
445 | "container"); | |
447 | } |
|
446 | } | |
448 | } |
|
447 | } | |
449 | else { |
|
448 | else { | |
450 | // the mouse is hover the placeHolder |
|
449 | // the mouse is hover the placeHolder | |
451 | // Do nothing |
|
450 | // Do nothing | |
452 | } |
|
451 | } | |
453 | } |
|
452 | } |
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