author | nemo |
Sat, 05 Nov 2011 20:51:15 -0400 | |
changeset 6295 | 5b2b304a91ec |
parent 5858 | 1f4a8cf9efcb |
child 6616 | f77bb02b669f |
permissions | -rw-r--r-- |
4976 | 1 |
/* |
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* Hedgewars, a free turn based strategy game |
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* Copyright (c) 2011 Andrey Korotaev <unC0Rr@gmail.com> |
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* |
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* This program 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; version 2 of the License |
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* |
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* This program 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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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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*/ |
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||
4423 | 19 |
#include <QGraphicsSceneMouseEvent> |
4426 | 20 |
#include <QGraphicsPathItem> |
4427 | 21 |
#include <QtEndian> |
4937 | 22 |
#include <QDebug> |
4423 | 23 |
|
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#include "drawmapscene.h" |
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||
4434 | 26 |
template <class T> T sqr(const T & x) |
27 |
{ |
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28 |
return x*x; |
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} |
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||
4423 | 31 |
DrawMapScene::DrawMapScene(QObject *parent) : |
4424 | 32 |
QGraphicsScene(parent), |
4426 | 33 |
m_pen(Qt::yellow), |
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m_brush(Qt::yellow) |
|
4423 | 35 |
{ |
36 |
setSceneRect(0, 0, 4096, 2048); |
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4424 | 37 |
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QLinearGradient gradient(0, 0, 0, 2048); |
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4426 | 39 |
gradient.setColorAt(0, QColor(60, 60, 155)); |
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gradient.setColorAt(1, QColor(155, 155, 60)); |
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4424 | 41 |
setBackgroundBrush(QBrush(gradient)); |
42 |
||
4426 | 43 |
m_pen.setWidth(67); |
44 |
m_pen.setJoinStyle(Qt::RoundJoin); |
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m_pen.setCapStyle(Qt::RoundCap); |
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m_currPath = 0; |
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4423 | 47 |
} |
48 |
||
49 |
void DrawMapScene::mouseMoveEvent(QGraphicsSceneMouseEvent * mouseEvent) |
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{ |
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4426 | 51 |
if(m_currPath && (mouseEvent->buttons() & Qt::LeftButton)) |
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{ |
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QPainterPath path = m_currPath->path(); |
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4937 | 54 |
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0985edac2ad7
use ctrl instead of alt to avoid colliding with linux window positioning
nemo
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if(mouseEvent->modifiers() & Qt::ControlModifier) |
4937 | 56 |
{ |
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int c = path.elementCount(); |
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QPointF pos = mouseEvent->scenePos(); |
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path.setElementPositionAt(c - 1, pos.x(), pos.y()); |
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||
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} else |
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{ |
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path.lineTo(mouseEvent->scenePos()); |
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paths.first().append(mouseEvent->scenePos().toPoint()); |
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} |
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4426 | 66 |
m_currPath->setPath(path); |
4427 | 67 |
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emit pathChanged(); |
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4426 | 69 |
} |
4423 | 70 |
} |
71 |
||
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void DrawMapScene::mousePressEvent(QGraphicsSceneMouseEvent * mouseEvent) |
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{ |
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4426 | 74 |
m_currPath = addPath(QPainterPath(), m_pen); |
75 |
||
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QPainterPath path = m_currPath->path(); |
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QPointF p = mouseEvent->scenePos(); |
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p += QPointF(0.01, 0.01); |
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path.moveTo(p); |
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path.lineTo(mouseEvent->scenePos()); |
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4439 | 81 |
paths.prepend(QList<QPoint>() << mouseEvent->scenePos().toPoint()); |
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m_currPath->setPath(path); |
83 |
||
4427 | 84 |
emit pathChanged(); |
4423 | 85 |
} |
86 |
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void DrawMapScene::mouseReleaseEvent(QGraphicsSceneMouseEvent * mouseEvent) |
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{ |
|
5108
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
89 |
if (m_currPath) |
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
90 |
{ |
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
91 |
QPainterPath path = m_currPath->path(); |
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
92 |
path.lineTo(mouseEvent->scenePos()); |
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
93 |
paths.first().append(mouseEvent->scenePos().toPoint()); |
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
94 |
m_currPath->setPath(path); |
4560
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents:
4520
diff
changeset
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95 |
|
5108
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
96 |
simplifyLast(); |
4439 | 97 |
|
5108
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
98 |
m_currPath = 0; |
b7483e29ea8c
Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
parents:
5040
diff
changeset
|
99 |
} |
4423 | 100 |
} |
4424 | 101 |
|
4426 | 102 |
void DrawMapScene::undo() |
4424 | 103 |
{ |
4426 | 104 |
if(items().size()) |
4427 | 105 |
{ |
4426 | 106 |
removeItem(items().first()); |
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paths.removeFirst(); |
4427 | 108 |
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emit pathChanged(); |
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} |
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1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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else if(oldItems.size()) |
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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{ |
1f4a8cf9efcb
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while(oldItems.size()) |
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addItem(oldItems.takeFirst()); |
1f4a8cf9efcb
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paths = oldPaths; |
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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|
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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emit pathChanged(); |
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} |
4424 | 119 |
} |
4427 | 120 |
|
4560
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents:
4520
diff
changeset
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void DrawMapScene::clearMap() |
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- Some work on drawMap widget and scene to allow undo, clear, save and load operations
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{ |
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sheepluva
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// don't clear if already cleared |
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if(!items().size()) |
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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return; |
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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|
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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oldItems.clear(); |
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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|
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// do this since clear() would _destroy_ all items |
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while(items().size()) { |
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oldItems.push_front(items().first()); |
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removeItem(items().first()); |
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} |
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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|
1f4a8cf9efcb
hand drawn map editor: allow "undo" after "clear"
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diff
changeset
|
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oldPaths = paths; |
1f4a8cf9efcb
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|
4560
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents:
4520
diff
changeset
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paths.clear(); |
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents:
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changeset
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|
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
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changeset
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emit pathChanged(); |
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
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} |
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
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diff
changeset
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141 |
|
4427 | 142 |
QByteArray DrawMapScene::encode() |
143 |
{ |
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QByteArray b; |
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||
4666 | 146 |
for(int i = paths.size() - 1; i >= 0; --i) |
4427 | 147 |
{ |
148 |
int cnt = 0; |
|
4666 | 149 |
QList<QPoint> points = paths.at(i); |
4427 | 150 |
foreach(QPoint point, points) |
151 |
{ |
|
152 |
qint16 px = qToBigEndian((qint16)point.x()); |
|
153 |
qint16 py = qToBigEndian((qint16)point.y()); |
|
154 |
quint8 flags = 2; |
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4442 | 155 |
if(!cnt) flags |= 0x80; |
4427 | 156 |
b.append((const char *)&px, 2); |
157 |
b.append((const char *)&py, 2); |
|
4457 | 158 |
b.append((const char *)&flags, 1); |
4427 | 159 |
|
160 |
++cnt; |
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161 |
} |
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162 |
||
163 |
} |
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164 |
||
165 |
return b; |
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166 |
} |
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4434 | 167 |
|
4442 | 168 |
void DrawMapScene::decode(QByteArray data) |
169 |
{ |
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oldItems.clear(); |
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171 |
oldPaths.clear(); |
4442 | 172 |
clear(); |
173 |
paths.clear(); |
|
174 |
||
175 |
QList<QPoint> points; |
|
176 |
||
177 |
while(data.size() >= 5) |
|
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{ |
|
179 |
qint16 px = qFromBigEndian(*(qint16 *)data.data()); |
|
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data.remove(0, 2); |
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181 |
qint16 py = qFromBigEndian(*(qint16 *)data.data()); |
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182 |
data.remove(0, 2); |
|
4457 | 183 |
quint8 flags = *(quint8 *)data.data(); |
184 |
data.remove(0, 1); |
|
4442 | 185 |
|
4666 | 186 |
if((flags & 0x80) && points.size()) |
4442 | 187 |
{ |
4666 | 188 |
addPath(pointsToPath(points), m_pen); |
189 |
paths.prepend(points); |
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190 |
||
191 |
points.clear(); |
|
192 |
} |
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4442 | 193 |
|
4666 | 194 |
points.append(QPoint(px, py)); |
195 |
} |
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196 |
||
197 |
if(points.size()) |
|
198 |
{ |
|
199 |
addPath(pointsToPath(points), m_pen); |
|
200 |
paths.prepend(points); |
|
4442 | 201 |
} |
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202 |
|
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|
203 |
emit pathChanged(); |
4442 | 204 |
} |
205 |
||
4439 | 206 |
void DrawMapScene::simplifyLast() |
4434 | 207 |
{ |
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parents:
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diff
changeset
|
208 |
if(!paths.size()) return; |
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
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changeset
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209 |
|
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changeset
|
210 |
QList<QPoint> points = paths.at(0); |
4439 | 211 |
|
212 |
QPoint prevPoint = points.first(); |
|
213 |
int i = 1; |
|
214 |
while(i < points.size()) |
|
4434 | 215 |
{ |
4471 | 216 |
if( (i != points.size() - 1) |
217 |
&& (sqr(prevPoint.x() - points[i].x()) + sqr(prevPoint.y() - points[i].y()) < 1000) |
|
218 |
) |
|
4439 | 219 |
points.removeAt(i); |
220 |
else |
|
221 |
{ |
|
222 |
prevPoint = points[i]; |
|
223 |
++i; |
|
224 |
} |
|
225 |
} |
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4434 | 226 |
|
4439 | 227 |
paths[0] = points; |
228 |
||
229 |
||
230 |
// redraw path |
|
231 |
{ |
|
232 |
QGraphicsPathItem * pathItem = static_cast<QGraphicsPathItem *>(items()[0]); |
|
4442 | 233 |
pathItem->setPath(pointsToPath(paths[0])); |
4434 | 234 |
} |
235 |
||
236 |
emit pathChanged(); |
|
237 |
} |
|
4442 | 238 |
|
239 |
QPainterPath DrawMapScene::pointsToPath(const QList<QPoint> points) |
|
240 |
{ |
|
241 |
QPainterPath path; |
|
242 |
||
243 |
if(points.size()) |
|
244 |
{ |
|
245 |
QPointF p = points[0] + QPointF(0.01, 0.01); |
|
246 |
path.moveTo(p); |
|
247 |
||
248 |
foreach(QPoint p, points) |
|
249 |
path.lineTo(p); |
|
250 |
} |
|
251 |
||
252 |
return path; |
|
253 |
} |