mirror of
https://github.com/qelectrotech/qelectrotech-source-mirror.git
synced 2026-09-29 14:14:15 +02:00
Andre Rummler
6b577ee757
Shapes and images can now be resized, rotated, and skewed directly on the canvas, not just moved. Both share one small transform struct (rotation, then skew, then scale, anchored on a movable pivot) and one handle widget, so a corner drag, an edge skew, or grabbing the rotate handle behaves the same way and runs through the same matrix math everywhere, instead of every item type reinventing its own. Shapes also gained a proper pen tool (bezier paths, corner/smooth/ symmetric nodes), arc support, and mirroring. Images gained non-destructive cropping and colour-keyed transparency, both remember their own settings, so reopening the dialog picks up where you left off instead of starting over. Properties dialogs for both were extended to match (position, size, angle, skew), with undo/redo wired through for every handle drag. Old XML files can read easily as the transformation is only added if needed and the old syntax is still used and understood if it is not needed.
67 lines
2.6 KiB
C++
67 lines
2.6 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 DIAGRAMEVENTADDSHAPE_H
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#define DIAGRAMEVENTADDSHAPE_H
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#include "../qetgraphicsitem/qetshapeitem.h"
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#include "diagrameventinterface.h"
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class QGraphicsEllipseItem;
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/**
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@brief The DiagramEventAddShape class
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This event manage the creation of a shape.
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*/
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class DiagramEventAddShape : public DiagramEventInterface
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{
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Q_OBJECT
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public:
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DiagramEventAddShape(Diagram *diagram, QetShapeItem::ShapeType shape_type);
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~DiagramEventAddShape() override;
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void mousePressEvent (QGraphicsSceneMouseEvent *event) override;
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void mouseMoveEvent (QGraphicsSceneMouseEvent *event) override;
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void mouseReleaseEvent (QGraphicsSceneMouseEvent *event) override;
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void mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event) override;
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void keyPressEvent (QKeyEvent *event) override;
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void keyReleaseEvent (QKeyEvent *event) override;
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void init() override;
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private:
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void updateHelpCross (const QPointF &p);
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void applyPosition (const QPointF &pos, Qt::KeyboardModifiers mods);
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void updateCreationHint () const;
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QString beforeClickHint () const;
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QString afterClickHint () const;
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void showCenterMarker (const QPointF &scenePos);
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void hideCenterMarker ();
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void reapplyLastPosition (QKeyEvent *event);
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protected:
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QetShapeItem::ShapeType m_shape_type;
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QetShapeItem *m_shape_item;
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QGraphicsLineItem *m_help_horiz, *m_help_verti;
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QPointF m_anchor_point; // the shape's first-click point -- meaningful once m_shape_item exists
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QGraphicsEllipseItem *m_center_marker = nullptr; // shown only while Ctrl-anchoring is actually in effect, so it doubles as confirmation that it is
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bool m_center_anchored = false; // decided once, at the first click -- see applyPosition()'s doc comment for why
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QPointF m_last_mouse_scene_pos; // raw, unsnapped -- lets a modifier-only change re-snap correctly when reapplied
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};
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#endif // DIAGRAMEVENTADDSHAPE_H
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