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https://github.com/qelectrotech/qelectrotech-source-mirror.git
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Andre Rummler
923723a9de
a) paste - conductor does not move - pressing escape does not abort - pressing anything during the process crashes the program instead of aborting b) similar issue with the escape not working fixed for graphics items, texxt fields (and probably others)
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DIAGRAMEVENTADDPASTE_H
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#define DIAGRAMEVENTADDPASTE_H
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#include "diagrameventinterface.h"
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#include "../diagramcontent.h"
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#include <QHash>
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#include <QPointer>
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class QStatusBar;
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/**
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@brief The DiagramEventAddPaste class
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Paste the clipboard as a placement you can still move.
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The pasted items are added straight away and follow the cursor until a
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left click drops them; Escape or a right click takes them away again.
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This is the same interaction as placing a new element, so a paste behaves
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like every other "put something on the folio" action.
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The items are the real ones from the start, not a preview: Diagram::fromXml
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creates them, this class moves them, and PasteDiagramCommand is pushed only
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once they are dropped. That keeps one copy of the paste logic rather than
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two, and means a cancelled paste leaves nothing on the undo stack.
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*/
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class DiagramEventAddPaste : public DiagramEventInterface
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{
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Q_OBJECT
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public:
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///Items with a position of their own. Conductors are left out
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///deliberately: they are drawn from their terminals, so they
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///follow when the elements they attach to move.
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static const int MovableItems =
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DiagramContent::Elements
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| DiagramContent::TextFields
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| DiagramContent::Images
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| DiagramContent::Shapes
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| DiagramContent::Tables
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| DiagramContent::TerminalStrip;
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DiagramEventAddPaste(Diagram *diagram, const QPointF &start_pos);
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~DiagramEventAddPaste() override;
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void mouseMoveEvent (QGraphicsSceneMouseEvent *event) override;
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void mousePressEvent (QGraphicsSceneMouseEvent *event) override;
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void mouseReleaseEvent (QGraphicsSceneMouseEvent *event) override;
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void keyPressEvent (QKeyEvent *event) override;
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void init() override;
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///@return true if the clipboard holds something this can paste.
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static bool clipboardHasDiagram();
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private:
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void moveTo(const QPointF &scene_pos);
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void commit();
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void cancel();
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void showHint();
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void removeItems();
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DiagramContent m_content;
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///Each movable item's position relative to the group's top left,
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///taken once so repeated moves cannot accumulate rounding drift.
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QHash<QGraphicsItem *, QPointF> m_relative_pos;
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QPointer<QStatusBar> m_status_bar;
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bool m_finished{false};
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};
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#endif // DIAGRAMEVENTADDPASTE_H
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