Add undo command for QetShapeItem geometry change

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4046 bfdf4180-ca20-0410-9c96-a3a8aa849046
2026-01-09 15:19:58 +01:00 · 2015-07-12 13:35:40 +00:00
parent 57fdcd70a4
commit 27117ef9d1
5 changed files with 249 additions and 30 deletions
--- a/sources/undocommand/qetshapegeometrycommand.cpp
+++ b/sources/undocommand/qetshapegeometrycommand.cpp
@@ -0,0 +1,122 @@
+/*
+        Copyright 2006-2015 The QElectroTech Team
+        This file is part of QElectroTech.
+
+        QElectroTech is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 2 of the License, or
+        (at your option) any later version.
+
+        QElectroTech is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "qetshapegeometrycommand.h"
+#include "qetshapeitem.h"
+#include <QObject>
+
+/**
+ * @brief QetShapeGeometryCommand::QetShapeGeometryCommand
+ * Constructor for a line shape
+ * @param item : item to change the geometry
+ * @param old_line : old line
+ * @param parent : parent undo command
+ */
+QetShapeGeometryCommand::QetShapeGeometryCommand(QetShapeItem *item, const QLineF &old_line, QUndoCommand *parent) :
+    QUndoCommand(parent),
+    m_shape_item(item),
+	m_old_line(old_line)
+{
+    setText(QObject::tr("Modifier la géometrie de : %1").arg(m_shape_item->name()));
+}
+
+/**
+ * @brief QetShapeGeometryCommand::QetShapeGeometryCommand
+ * Constructor for a rectangle or ellipse shape
+ * @param item : item to change the geometry
+ * @param old_rect : old rectangle
+ * @param parent : parent undo command
+ */
+QetShapeGeometryCommand::QetShapeGeometryCommand(QetShapeItem *item, const QRectF &old_rect, QUndoCommand *parent):
+    QUndoCommand(parent),
+	m_shape_item(item),
+	m_old_rect(old_rect)
+{
+    setText(QObject::tr("Modifier la géometrie de : %1").arg(m_shape_item->name()));
+}
+
+/**
+ * @brief QetShapeGeometryCommand::QetShapeGeometryCommand
+ * Constructor for polygon shape
+ * @param item : item to change the geometry
+ * @param old_polygon : old polygon
+ * @param parent : parent undo command
+ */
+QetShapeGeometryCommand::QetShapeGeometryCommand(QetShapeItem *item, const QPolygonF &old_polygon, QUndoCommand *parent):
+    QUndoCommand(parent),
+	m_shape_item(item),
+	m_old_polygon(old_polygon)
+{
+    setText(QObject::tr("Modifier la géometrie de : %1").arg(m_shape_item->name()));
+}
+
+/**
+ * @brief QetShapeGeometryCommand::mergeWith
+ * Try to merge this undo command with @other
+ * @param other
+ * @return true if the two command was merged
+ */
+bool QetShapeGeometryCommand::mergeWith(const QUndoCommand *other)
+{
+    if (other->id() != id() || other->childCount()) return false;
+    const QetShapeGeometryCommand *other_undo = static_cast<const QetShapeGeometryCommand*>(other);
+    if (other_undo->m_shape_item != m_shape_item) return false;
+
+    switch (m_shape_item->shapeType())
+    {
+		case QetShapeItem::Line:      m_new_line = other_undo->m_new_line;       break;
+		case QetShapeItem::Rectangle: m_new_rect = other_undo->m_new_rect;       break;
+		case QetShapeItem::Ellipse:   m_new_rect = other_undo->m_new_rect;       break;
+		case QetShapeItem::Polyline:  m_new_polygon = other_undo->m_new_polygon; break;
+    }
+
+    return true;
+}
+
+/**
+ * @brief QetShapeGeometryCommand::redo
+ * Redo this command
+ */
+void QetShapeGeometryCommand::redo()
+{
+    switch (m_shape_item->shapeType())
+    {
+		case QetShapeItem::Line:      m_shape_item->setLine(m_new_line);       break;
+		case QetShapeItem::Rectangle: m_shape_item->setRect(m_new_rect);       break;
+		case QetShapeItem::Ellipse:   m_shape_item->setRect(m_new_rect);       break;
+		case QetShapeItem::Polyline:  m_shape_item->setPolygon(m_new_polygon); break;
+    }
+
+    QUndoCommand::redo();
+}
+
+/**
+ * @brief QetShapeGeometryCommand::undo
+ * Undo this command
+ */
+void QetShapeGeometryCommand::undo()
+{
+    switch (m_shape_item->shapeType())
+    {
+		case QetShapeItem::Line:      m_shape_item->setLine(m_old_line);       break;
+		case QetShapeItem::Rectangle: m_shape_item->setRect(m_old_rect);       break;
+		case QetShapeItem::Ellipse:   m_shape_item->setRect(m_old_rect);       break;
+		case QetShapeItem::Polyline:  m_shape_item->setPolygon(m_old_polygon); break;
+    }
+
+    QUndoCommand::undo();
+}