1 /*
2 * Copyright (c) 2016 Dmitry Kazakov <dimula73@gmail.com>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19 #include "KoShapeResizeCommand.h"
20
21 #include <KoShape.h>
22 #include "kis_command_ids.h"
23 #include "kis_assert.h"
24
25
26 struct Q_DECL_HIDDEN KoShapeResizeCommand::Private
27 {
28 QList<KoShape *> shapes;
29 qreal scaleX;
30 qreal scaleY;
31 QPointF absoluteStillPoint;
32 bool useGlobalMode;
33 bool usePostScaling;
34 QTransform postScalingCoveringTransform;
35
36 QList<QSizeF> oldSizes;
37 QList<QTransform> oldTransforms;
38 };
39
40
KoShapeResizeCommand(const QList<KoShape * > & shapes,qreal scaleX,qreal scaleY,const QPointF & absoluteStillPoint,bool useGLobalMode,bool usePostScaling,const QTransform & postScalingCoveringTransform,KUndo2Command * parent)41 KoShapeResizeCommand::KoShapeResizeCommand(const QList<KoShape*> &shapes,
42 qreal scaleX, qreal scaleY,
43 const QPointF &absoluteStillPoint,
44 bool useGLobalMode,
45 bool usePostScaling,
46 const QTransform &postScalingCoveringTransform,
47 KUndo2Command *parent)
48 : SkipFirstRedoBase(false, kundo2_i18n("Resize"), parent),
49 m_d(new Private)
50 {
51 m_d->shapes = shapes;
52 m_d->scaleX = scaleX;
53 m_d->scaleY = scaleY;
54 m_d->absoluteStillPoint = absoluteStillPoint;
55 m_d->useGlobalMode = useGLobalMode;
56 m_d->usePostScaling = usePostScaling;
57 m_d->postScalingCoveringTransform = postScalingCoveringTransform;
58
59 Q_FOREACH (KoShape *shape, m_d->shapes) {
60 m_d->oldSizes << shape->size();
61 m_d->oldTransforms << shape->transformation();
62 }
63 }
64
~KoShapeResizeCommand()65 KoShapeResizeCommand::~KoShapeResizeCommand()
66 {
67 }
68
redoImpl()69 void KoShapeResizeCommand::redoImpl()
70 {
71 QMap<KoShape*, QRectF> updates = redoNoUpdate();
72
73 for (auto it = updates.begin(); it != updates.end(); ++it) {
74 it.key()->updateAbsolute(it.value());
75 }
76 }
77
undoImpl()78 void KoShapeResizeCommand::undoImpl()
79 {
80 QMap<KoShape*, QRectF> updates = undoNoUpdate();
81
82 for (auto it = updates.begin(); it != updates.end(); ++it) {
83 it.key()->updateAbsolute(it.value());
84 }
85 }
86
redoNoUpdate()87 QMap<KoShape*, QRectF> KoShapeResizeCommand::redoNoUpdate()
88 {
89 QMap<KoShape*,QRectF> updates;
90
91 Q_FOREACH (KoShape *shape, m_d->shapes) {
92 const QRectF oldDirtyRect = shape->boundingRect();
93
94 KoFlake::resizeShapeCommon(shape,
95 m_d->scaleX, m_d->scaleY,
96 m_d->absoluteStillPoint,
97 m_d->useGlobalMode,
98 m_d->usePostScaling,
99 m_d->postScalingCoveringTransform);
100
101 updates[shape] = oldDirtyRect | shape->boundingRect();
102 }
103
104 return updates;
105 }
106
undoNoUpdate()107 QMap<KoShape*, QRectF> KoShapeResizeCommand::undoNoUpdate()
108 {
109 QMap<KoShape*,QRectF> updates;
110
111 for (int i = 0; i < m_d->shapes.size(); i++) {
112 KoShape *shape = m_d->shapes[i];
113
114 const QRectF oldDirtyRect = shape->boundingRect();
115 shape->setSize(m_d->oldSizes[i]);
116 shape->setTransformation(m_d->oldTransforms[i]);
117
118 updates[shape] = oldDirtyRect | shape->boundingRect();
119 }
120
121 return updates;
122 }
123
id() const124 int KoShapeResizeCommand::id() const
125 {
126 return KisCommandUtils::ResizeShapeId;
127 }
128
mergeWith(const KUndo2Command * command)129 bool KoShapeResizeCommand::mergeWith(const KUndo2Command *command)
130 {
131 const KoShapeResizeCommand *other = dynamic_cast<const KoShapeResizeCommand*>(command);
132
133 if (!other ||
134 other->m_d->absoluteStillPoint != m_d->absoluteStillPoint ||
135 other->m_d->shapes != m_d->shapes ||
136 other->m_d->useGlobalMode != m_d->useGlobalMode ||
137 other->m_d->usePostScaling != m_d->usePostScaling) {
138
139 return false;
140 }
141
142 // check if the significant orientations coincide
143 if (m_d->useGlobalMode && !m_d->usePostScaling) {
144 Qt::Orientation our = KoFlake::significantScaleOrientation(m_d->scaleX, m_d->scaleY);
145 Qt::Orientation their = KoFlake::significantScaleOrientation(other->m_d->scaleX, other->m_d->scaleY);
146
147 if (our != their) {
148 return false;
149 }
150 }
151
152 m_d->scaleX *= other->m_d->scaleX;
153 m_d->scaleY *= other->m_d->scaleY;
154 return true;
155 }
156
replaceResizeAction(qreal scaleX,qreal scaleY,const QPointF & absoluteStillPoint)157 void KoShapeResizeCommand::replaceResizeAction(qreal scaleX, qreal scaleY, const QPointF &absoluteStillPoint)
158 {
159 const QMap<KoShape*, QRectF> undoUpdates = undoNoUpdate();
160
161 m_d->scaleX = scaleX;
162 m_d->scaleY = scaleY;
163 m_d->absoluteStillPoint = absoluteStillPoint;
164
165 const QMap<KoShape*, QRectF> redoUpdates = redoNoUpdate();
166
167 KIS_SAFE_ASSERT_RECOVER_NOOP(undoUpdates.size() == redoUpdates.size());
168
169 for (auto it = undoUpdates.begin(); it != undoUpdates.end(); ++it) {
170 KIS_SAFE_ASSERT_RECOVER_NOOP(redoUpdates.contains(it.key()));
171 it.key()->updateAbsolute(it.value() | redoUpdates[it.key()]);
172 }
173 }
174