Engauge Digitizer 2
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CmdMoveBy.cpp
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1/******************************************************************************************************
2 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released *
3 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
4 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission. *
5 ******************************************************************************************************/
6
7#include "CmdMoveBy.h"
8#include "DataKey.h"
9#include "Document.h"
10#include "DocumentSerialize.h"
11#include "EngaugeAssert.h"
12#include "GraphicsItemType.h"
13#include "GraphicsView.h"
14#include "Logger.h"
15#include "MainWindow.h"
16#include <QGraphicsItem>
17#include <QtToString.h>
18#include <QXmlStreamReader>
19#include "Xml.h"
20
23 const QPointF &deltaScreen,
24 const QString &moveText,
25 const QStringList &selectedPointIdentifiers) :
28 moveText),
29 m_deltaScreen (deltaScreen)
30{
31 QStringList selected; // For debug
32 QStringList::const_iterator itr;
33 for (itr = selectedPointIdentifiers.begin (); itr != selectedPointIdentifiers.end (); itr++) {
34
35 QString selectedPointIdentifier = *itr;
36
37 selected << selectedPointIdentifier;
38 m_movedPoints.setKeyValue (selectedPointIdentifier, true);
39 }
40
41 LOG4CPP_INFO_S ((*mainCat)) << "CmdMoveBy::CmdMoveBy"
42 << " deltaScreen=" << QPointFToString (deltaScreen).toLatin1 ().data ()
43 << " selected=" << selected.join (", ").toLatin1 ().data () << ")";
44}
45
48 const QString &cmdDescription,
49 QXmlStreamReader &reader) :
52 cmdDescription)
53{
54 LOG4CPP_INFO_S ((*mainCat)) << "CmdMoveBy::CmdMoveBy";
55
56 QXmlStreamAttributes attributes = reader.attributes();
57
58 QStringList requiredAttributesLeaf;
59 requiredAttributesLeaf << DOCUMENT_SERIALIZE_SCREEN_X_DELTA
61 leafAndBaseAttributes (attributes,
62 requiredAttributesLeaf,
63 reader);
64
65 m_deltaScreen.setX(attributes.value(DOCUMENT_SERIALIZE_SCREEN_X_DELTA).toDouble());
66 m_deltaScreen.setY(attributes.value(DOCUMENT_SERIALIZE_SCREEN_Y_DELTA).toDouble());
67 m_movedPoints.loadXml (reader);
68}
69
73
75{
76 LOG4CPP_INFO_S ((*mainCat)) << "CmdMoveBy::cmdRedo"
77 << " deltaScreen=" << QPointFToString (m_deltaScreen).toLatin1().data()
78 << " moving=" << m_movedPoints.count ();
79
80 restoreState ();
83 moveBy (m_deltaScreen);
85 resetSelection(m_movedPoints);
87}
88
90{
91 LOG4CPP_INFO_S ((*mainCat)) << "CmdMoveBy::cmdUndo"
92 << " deltaScreen=" << QPointFToString (-1.0 * m_deltaScreen).toLatin1().data()
93 << " moving=" << m_movedPoints.count ();
94
95 restoreState ();
99 resetSelection(m_movedPoints);
101}
102
103void CmdMoveBy::moveBy (const QPointF &deltaScreen)
104{
105 LOG4CPP_INFO_S ((*mainCat)) << "CmdMoveBy::moveBy";
106
107 // Move Points in the Document
108 for (int i = 0; i < m_movedPoints.count(); i++) {
109
110 QString pointIdentifier = m_movedPoints.getKey (i);
111 document().movePoint (pointIdentifier, deltaScreen);
112
113 }
114
115 // Move Points in GraphicsScene, using the new positions in Document
116 QList<QGraphicsItem *> items = mainWindow().view().items();
117 QList<QGraphicsItem *>::iterator itrS;
118 for (itrS = items.begin (); itrS != items.end (); itrS++) {
119
120 QGraphicsItem *item = *itrS;
121 if (item->data (DATA_KEY_GRAPHICS_ITEM_TYPE).toInt () == GRAPHICS_ITEM_TYPE_POINT) {
122
123 QString pointIdentifier = item->data (DATA_KEY_IDENTIFIER).toString ();
124
125 if (m_movedPoints.contains (pointIdentifier)) {
126
127 // Get the new position
128 QPointF posScreen = document().positionScreen (pointIdentifier);
129
130 if (item->pos () != posScreen) {
131
132 // Save the new position
133 item->setPos (posScreen);
134 }
135 }
136 }
137 }
138
139 document().updatePointOrdinals (mainWindow().transformation());
140
141 // Update the lines attached to the points
143}
144
145void CmdMoveBy::saveXml (QXmlStreamWriter &writer) const
146{
147 writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
149 writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
150 writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_X_DELTA, QString::number (m_deltaScreen.x()));
151 writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_Y_DELTA, QString::number (m_deltaScreen.y()));
152 m_movedPoints.saveXml (writer);
153 baseAttributes (writer);
154 writer.writeEndElement();
155}
@ DATA_KEY_GRAPHICS_ITEM_TYPE
Definition DataKey.h:15
@ DATA_KEY_IDENTIFIER
Definition DataKey.h:14
const QString DOCUMENT_SERIALIZE_CMD_MOVE_BY
const QString DOCUMENT_SERIALIZE_CMD
const QString DOCUMENT_SERIALIZE_SCREEN_Y_DELTA
const QString DOCUMENT_SERIALIZE_CMD_TYPE
const QString DOCUMENT_SERIALIZE_CMD_DESCRIPTION
const QString DOCUMENT_SERIALIZE_SCREEN_X_DELTA
@ GRAPHICS_ITEM_TYPE_POINT
log4cpp::Category * mainCat
Definition Logger.cpp:14
QString QPointFToString(const QPointF &pos)
Document & document()
Return the Document that this command will modify during redo and undo.
MainWindow & mainWindow()
Return the MainWindow so it can be updated by this command as a last step.
void saveOrCheckPostCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
void restoreState()
Before any other operations associated with a Cmd class are performed, this method is called to resto...
void saveOrCheckPreCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
void resetSelection(const PointIdentifiers &pointIdentifiersToSelect)
Call this (for consistency) after writing leaf class attributes, to write the base class attributes.
void leafAndBaseAttributes(const QXmlStreamAttributes &attributes, const QStringList &requiredAttributesLeaf, QXmlStreamReader &reader)
Before reading leaf class attributes, check all required attributes from leaf and this base class are...
void baseAttributes(QXmlStreamWriter &writer) const
After writing leaf class attributes, this writes the base class atributes.
virtual ~CmdMoveBy()
Definition CmdMoveBy.cpp:70
virtual void cmdUndo()
Undo method that is called when QUndoStack is moved one command backward.
Definition CmdMoveBy.cpp:89
virtual void cmdRedo()
Redo method that is called when QUndoStack is moved one command forward.
Definition CmdMoveBy.cpp:74
virtual void saveXml(QXmlStreamWriter &writer) const
Save commands as xml for later uploading.
CmdMoveBy(MainWindow &mainWindow, Document &document, const QPointF &deltaScreen, const QString &moveText, const QStringList &selectedPointIdentifiers)
Constructor for normal creation.
Definition CmdMoveBy.cpp:21
void saveDocumentState(const Document &document)
Save the document state for restoration by restoreDocumentState.
void restoreDocumentState(Document &document) const
Restore the document previously saved by saveDocumentState.
CmdPointChangeBase(MainWindow &mainWindow, Document &document, const QString &cmdDescription)
Single constructor.
Storage of one imported image and the data attached to that image.
Definition Document.h:44
QPointF positionScreen(const QString &pointIdentifier) const
See Curve::positionScreen.
Definition Document.cpp:853
void updatePointOrdinals(const Transformation &transformation)
Update point ordinals after point addition/removal or dragging.
void movePoint(const QString &pointIdentifier, const QPointF &deltaScreen)
See Curve::movePoint.
Definition Document.cpp:784
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
Definition MainWindow.h:95
void updateAfterCommand()
See GraphicsScene::updateAfterCommand.
void updateGraphicsLinesToMatchGraphicsPoints()
Update the graphics lines so they follow the graphics points, after a drag, addition,...
GraphicsView & view()
View for the QImage and QGraphicsItems, without const.
QString getKey(int i) const
Get key for index.
int count() const
Number of entries.
#define LOG4CPP_INFO_S(logger)
Definition convenience.h:18