| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include <private/editableaxislabel_p.h> |
| 5 | |
| 6 | #include <QtGui/qtextcursor.h> |
| 7 | #include <QtGui/qtextdocument.h> |
| 8 | |
| 9 | QT_BEGIN_NAMESPACE |
| 10 | |
| 11 | EditableAxisLabel::EditableAxisLabel(QGraphicsItem *parent) : |
| 12 | QGraphicsTextItem(parent) |
| 13 | { |
| 14 | |
| 15 | } |
| 16 | |
| 17 | void EditableAxisLabel::focusInEvent(QFocusEvent *event) |
| 18 | { |
| 19 | m_htmlBeforeEdit = toHtml(); |
| 20 | setTextWidth(-1); |
| 21 | setInitialEditValue(); |
| 22 | m_editing = true; |
| 23 | QGraphicsTextItem::focusInEvent(event); |
| 24 | } |
| 25 | |
| 26 | void EditableAxisLabel::focusOutEvent(QFocusEvent *event) |
| 27 | { |
| 28 | // perform the modifications before calling finishEditing |
| 29 | // because finishEditing emits signals that can trigger |
| 30 | // range change which might invalidate the current label |
| 31 | QGraphicsTextItem::focusOutEvent(event); |
| 32 | setTextInteractionFlags(Qt::NoTextInteraction); |
| 33 | m_editing = false; |
| 34 | |
| 35 | finishEditing(); |
| 36 | } |
| 37 | |
| 38 | bool EditableAxisLabel::sceneEvent(QEvent *event) |
| 39 | { |
| 40 | if (m_editable && event->type() == QEvent::GraphicsSceneMouseDoubleClick) { |
| 41 | setTextInteractionFlags(Qt::TextEditorInteraction); |
| 42 | |
| 43 | bool ret = QGraphicsTextItem::sceneEvent(event); |
| 44 | // QGraphicsTextItem::sceneevent needs to be processed before |
| 45 | // the focus and text selection |
| 46 | setFocus(Qt::MouseFocusReason); |
| 47 | QTextCursor cursor = textCursor(); |
| 48 | cursor.select(selection: QTextCursor::Document); |
| 49 | setTextCursor(cursor); |
| 50 | return ret; |
| 51 | } |
| 52 | return QGraphicsTextItem::sceneEvent(event); |
| 53 | } |
| 54 | |
| 55 | void EditableAxisLabel::setEditable(bool editable) |
| 56 | { |
| 57 | m_editable = editable; |
| 58 | } |
| 59 | |
| 60 | void EditableAxisLabel::reloadBeforeEditContent() |
| 61 | { |
| 62 | resetBeforeEditValue(); |
| 63 | setHtml(m_htmlBeforeEdit); |
| 64 | } |
| 65 | |
| 66 | QRectF EditableAxisLabel::boundingRect() const |
| 67 | { |
| 68 | QRectF ret = QGraphicsTextItem::boundingRect(); |
| 69 | |
| 70 | // add 2px margin to allow the cursor to |
| 71 | // show up properly when editing |
| 72 | if (m_editing) |
| 73 | ret.setWidth(ret.width() + 2); |
| 74 | return ret; |
| 75 | } |
| 76 | |
| 77 | bool EditableAxisLabel::isEditEndingKeyPress(QKeyEvent *event) |
| 78 | { |
| 79 | if (event->text().size() >= 1) { |
| 80 | // finish editing with enter or ESC |
| 81 | if (event->key() == Qt::Key_Enter || |
| 82 | event->key() == Qt::Key_Return) { |
| 83 | clearFocus(); |
| 84 | return true; |
| 85 | } else if (event->key() == Qt::Key_Escape) { |
| 86 | document()->setHtml(m_htmlBeforeEdit); |
| 87 | clearFocus(); |
| 88 | return true; |
| 89 | } |
| 90 | } |
| 91 | return false; |
| 92 | } |
| 93 | |
| 94 | QT_END_NAMESPACE |
| 95 | |
| 96 | #include "moc_editableaxislabel_p.cpp" |
| 97 |