author | koda |
Mon, 08 Jul 2013 09:54:38 +0200 | |
changeset 9337 | c9d4daae1dee |
parent 9080 | 9b42757d7e71 |
child 9472 | 265e5997580e |
permissions | -rw-r--r-- |
4976 | 1 |
/* |
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* Hedgewars, a free turn based strategy game |
|
9080 | 3 |
* Copyright (c) 2004-2013 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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||
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#include <QGraphicsSceneMouseEvent> |
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#include <QGraphicsPathItem> |
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#include <QtEndian> |
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#include <QDebug> |
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|
24 |
#include "drawmapscene.h" |
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25 |
||
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template <class T> T sqr(const T & x) |
27 |
{ |
|
28 |
return x*x; |
|
29 |
} |
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||
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DrawMapScene::DrawMapScene(QObject *parent) : |
4424 | 32 |
QGraphicsScene(parent), |
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m_pen(Qt::yellow), |
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Cursor for DrawMapScene. Feel free to ajust its look.
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m_brush(Qt::yellow), |
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Cursor for DrawMapScene. Feel free to ajust its look.
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35 |
m_cursor(new QGraphicsEllipseItem(-0.5, -0.5, 1, 1)) |
4423 | 36 |
{ |
37 |
setSceneRect(0, 0, 4096, 2048); |
|
4424 | 38 |
|
39 |
QLinearGradient gradient(0, 0, 0, 2048); |
|
4426 | 40 |
gradient.setColorAt(0, QColor(60, 60, 155)); |
41 |
gradient.setColorAt(1, QColor(155, 155, 60)); |
|
6873 | 42 |
|
43 |
m_eraser = QBrush(gradient); |
|
44 |
setBackgroundBrush(m_eraser); |
|
45 |
m_isErasing = false; |
|
4424 | 46 |
|
6784 | 47 |
m_pen.setWidth(76); |
4426 | 48 |
m_pen.setJoinStyle(Qt::RoundJoin); |
49 |
m_pen.setCapStyle(Qt::RoundCap); |
|
50 |
m_currPath = 0; |
|
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Cursor for DrawMapScene. Feel free to ajust its look.
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|
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Cursor for DrawMapScene. Feel free to ajust its look.
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m_isCursorShown = false; |
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Cursor for DrawMapScene. Feel free to ajust its look.
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m_cursor->setPen(QPen(Qt::green)); |
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m_cursor->setZValue(1); |
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m_cursor->setScale(m_pen.width()); |
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} |
57 |
||
58 |
void DrawMapScene::mouseMoveEvent(QGraphicsSceneMouseEvent * mouseEvent) |
|
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{ |
|
4426 | 60 |
if(m_currPath && (mouseEvent->buttons() & Qt::LeftButton)) |
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{ |
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QPainterPath path = m_currPath->path(); |
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if(mouseEvent->modifiers() & Qt::ControlModifier) |
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{ |
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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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} |
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else |
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{ |
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path.lineTo(mouseEvent->scenePos()); |
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6873 | 74 |
paths.first().points.append(mouseEvent->scenePos().toPoint()); |
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} |
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m_currPath->setPath(path); |
4427 | 77 |
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emit pathChanged(); |
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} |
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Cursor for DrawMapScene. Feel free to ajust its look.
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if(!m_isCursorShown) |
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showCursor(); |
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m_cursor->setPos(mouseEvent->scenePos()); |
4423 | 84 |
} |
85 |
||
86 |
void DrawMapScene::mousePressEvent(QGraphicsSceneMouseEvent * mouseEvent) |
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{ |
|
4426 | 88 |
m_currPath = addPath(QPainterPath(), m_pen); |
89 |
||
90 |
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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PathParams params; |
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params.width = serializePenWidth(m_pen.width()); |
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params.erasing = m_isErasing; |
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params.points = QList<QPoint>() << mouseEvent->scenePos().toPoint(); |
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paths.prepend(params); |
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4426 | 101 |
m_currPath->setPath(path); |
102 |
||
4427 | 103 |
emit pathChanged(); |
4423 | 104 |
} |
105 |
||
106 |
void DrawMapScene::mouseReleaseEvent(QGraphicsSceneMouseEvent * mouseEvent) |
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{ |
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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.
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if (m_currPath) |
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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.
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{ |
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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:
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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>
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path.lineTo(mouseEvent->scenePos()); |
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paths.first().points.append(mouseEvent->scenePos().toPoint()); |
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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>
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m_currPath->setPath(path); |
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|
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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.
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simplifyLast(); |
4439 | 116 |
|
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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>
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m_currPath = 0; |
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Zorg <zorgiepoo@gmail.com>
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} |
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} |
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|
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void DrawMapScene::wheelEvent(QGraphicsSceneWheelEvent * wheelEvent) |
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{ |
|
6784 | 123 |
if(wheelEvent->delta() > 0 && m_pen.width() < 516) |
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m_pen.setWidth(m_pen.width() + 10); |
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else if(wheelEvent->delta() < 0 && m_pen.width() >= 16) |
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m_pen.setWidth(m_pen.width() - 10); |
127 |
||
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m_cursor->setScale(m_pen.width()); |
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if(m_currPath) |
131 |
{ |
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m_currPath->setPen(m_pen); |
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paths.first().width = serializePenWidth(m_pen.width()); |
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} |
135 |
} |
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||
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void DrawMapScene::showCursor() |
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Cursor for DrawMapScene. Feel free to ajust its look.
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{ |
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Cursor for DrawMapScene. Feel free to ajust its look.
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if(!m_isCursorShown) |
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addItem(m_cursor); |
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Cursor for DrawMapScene. Feel free to ajust its look.
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m_isCursorShown = true; |
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} |
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|
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Cursor for DrawMapScene. Feel free to ajust its look.
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void DrawMapScene::hideCursor() |
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Cursor for DrawMapScene. Feel free to ajust its look.
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{ |
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if(m_isCursorShown) |
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Cursor for DrawMapScene. Feel free to ajust its look.
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removeItem(m_cursor); |
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Cursor for DrawMapScene. Feel free to ajust its look.
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Cursor for DrawMapScene. Feel free to ajust its look.
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m_isCursorShown = false; |
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} |
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4426 | 153 |
void DrawMapScene::undo() |
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{ |
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// cursor is a part of items() |
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if(m_isCursorShown) |
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return; |
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|
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if(items().size()) |
4427 | 160 |
{ |
4426 | 161 |
removeItem(items().first()); |
4439 | 162 |
paths.removeFirst(); |
4427 | 163 |
|
164 |
emit pathChanged(); |
|
165 |
} |
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else if(oldItems.size()) |
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167 |
{ |
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while(oldItems.size()) |
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addItem(oldItems.takeFirst()); |
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paths = oldPaths; |
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|
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emit pathChanged(); |
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173 |
} |
4424 | 174 |
} |
4427 | 175 |
|
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void DrawMapScene::clearMap() |
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{ |
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// cursor is a part of items() |
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if(m_isCursorShown) |
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return; |
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// don't clear if already cleared |
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if(!items().size()) |
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return; |
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|
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oldItems.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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{ |
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oldItems.push_front(items().first()); |
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192 |
removeItem(items().first()); |
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193 |
} |
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|
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oldPaths = paths; |
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|
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197 |
paths.clear(); |
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|
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emit pathChanged(); |
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200 |
} |
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201 |
|
6873 | 202 |
|
203 |
void DrawMapScene::setErasing(bool erasing) |
|
204 |
{ |
|
205 |
m_isErasing = erasing; |
|
206 |
if(erasing) |
|
207 |
m_pen.setBrush(m_eraser); |
|
208 |
else |
|
209 |
m_pen.setBrush(m_brush); |
|
210 |
} |
|
211 |
||
4427 | 212 |
QByteArray DrawMapScene::encode() |
213 |
{ |
|
214 |
QByteArray b; |
|
215 |
||
4666 | 216 |
for(int i = paths.size() - 1; i >= 0; --i) |
4427 | 217 |
{ |
218 |
int cnt = 0; |
|
6873 | 219 |
PathParams params = paths.at(i); |
220 |
foreach(QPoint point, params.points) |
|
4427 | 221 |
{ |
222 |
qint16 px = qToBigEndian((qint16)point.x()); |
|
223 |
qint16 py = qToBigEndian((qint16)point.y()); |
|
6781 | 224 |
quint8 flags = 0; |
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225 |
if(!cnt) |
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{ |
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flags = 0x80 + params.width; |
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if(params.erasing) flags |= 0x40; |
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229 |
} |
4427 | 230 |
b.append((const char *)&px, 2); |
231 |
b.append((const char *)&py, 2); |
|
4457 | 232 |
b.append((const char *)&flags, 1); |
4427 | 233 |
|
234 |
++cnt; |
|
235 |
} |
|
236 |
||
237 |
} |
|
238 |
||
239 |
return b; |
|
240 |
} |
|
4434 | 241 |
|
4442 | 242 |
void DrawMapScene::decode(QByteArray data) |
243 |
{ |
|
6873 | 244 |
bool erasing = m_isErasing; |
245 |
||
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hand drawn map editor: allow "undo" after "clear"
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|
246 |
oldItems.clear(); |
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hand drawn map editor: allow "undo" after "clear"
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changeset
|
247 |
oldPaths.clear(); |
4442 | 248 |
clear(); |
249 |
paths.clear(); |
|
250 |
||
6873 | 251 |
PathParams params; |
4442 | 252 |
|
253 |
while(data.size() >= 5) |
|
254 |
{ |
|
255 |
qint16 px = qFromBigEndian(*(qint16 *)data.data()); |
|
256 |
data.remove(0, 2); |
|
257 |
qint16 py = qFromBigEndian(*(qint16 *)data.data()); |
|
258 |
data.remove(0, 2); |
|
4457 | 259 |
quint8 flags = *(quint8 *)data.data(); |
260 |
data.remove(0, 1); |
|
4442 | 261 |
|
6781 | 262 |
if(flags & 0x80) |
4442 | 263 |
{ |
6873 | 264 |
if(params.points.size()) |
6781 | 265 |
{ |
6873 | 266 |
addPath(pointsToPath(params.points), m_pen); |
6781 | 267 |
|
6873 | 268 |
paths.prepend(params); |
4666 | 269 |
|
6873 | 270 |
params.points.clear(); |
6781 | 271 |
} |
272 |
||
6873 | 273 |
quint8 penWidth = flags & 0x3f; |
6781 | 274 |
m_pen.setWidth(deserializePenWidth(penWidth)); |
7146 | 275 |
params.erasing = flags & 0x40; |
276 |
if(params.erasing) |
|
6873 | 277 |
m_pen.setBrush(m_eraser); |
278 |
else |
|
279 |
m_pen.setBrush(m_brush); |
|
280 |
params.width = penWidth; |
|
4666 | 281 |
} |
4442 | 282 |
|
6873 | 283 |
params.points.append(QPoint(px, py)); |
4666 | 284 |
} |
285 |
||
6873 | 286 |
if(params.points.size()) |
4666 | 287 |
{ |
6873 | 288 |
addPath(pointsToPath(params.points), m_pen); |
289 |
paths.prepend(params); |
|
4442 | 290 |
} |
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changeset
|
291 |
|
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
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changeset
|
292 |
emit pathChanged(); |
6873 | 293 |
|
294 |
setErasing(erasing); |
|
4442 | 295 |
} |
296 |
||
4439 | 297 |
void DrawMapScene::simplifyLast() |
4434 | 298 |
{ |
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changeset
|
299 |
if(!paths.size()) return; |
5d6c7f88db73
- Some work on drawMap widget and scene to allow undo, clear, save and load operations
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diff
changeset
|
300 |
|
6873 | 301 |
QList<QPoint> points = paths.at(0).points; |
4439 | 302 |
|
303 |
QPoint prevPoint = points.first(); |
|
304 |
int i = 1; |
|
305 |
while(i < points.size()) |
|
4434 | 306 |
{ |
4471 | 307 |
if( (i != points.size() - 1) |
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astyle -C -S -L -N --style=allman --recursive "QTfrontend/*.cpp" "QTfrontend/*.h"
nemo
parents:
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diff
changeset
|
308 |
&& (sqr(prevPoint.x() - points[i].x()) + sqr(prevPoint.y() - points[i].y()) < 1000) |
4471 | 309 |
) |
4439 | 310 |
points.removeAt(i); |
311 |
else |
|
312 |
{ |
|
313 |
prevPoint = points[i]; |
|
314 |
++i; |
|
315 |
} |
|
316 |
} |
|
4434 | 317 |
|
6873 | 318 |
paths[0].points = points; |
4439 | 319 |
|
320 |
||
321 |
// redraw path |
|
322 |
{ |
|
6934
14a230552c2e
Cursor for DrawMapScene. Feel free to ajust its look.
unc0rr
parents:
6873
diff
changeset
|
323 |
QGraphicsPathItem * pathItem = static_cast<QGraphicsPathItem *>(items()[m_isCursorShown ? 1 : 0]); |
6873 | 324 |
pathItem->setPath(pointsToPath(paths[0].points)); |
4434 | 325 |
} |
326 |
||
327 |
emit pathChanged(); |
|
328 |
} |
|
4442 | 329 |
|
6935 | 330 |
int DrawMapScene::pointsCount() |
331 |
{ |
|
332 |
int cnt = 0; |
|
333 |
foreach(PathParams p, paths) |
|
334 |
cnt += p.points.size(); |
|
335 |
||
336 |
return cnt; |
|
337 |
} |
|
338 |
||
4442 | 339 |
QPainterPath DrawMapScene::pointsToPath(const QList<QPoint> points) |
340 |
{ |
|
341 |
QPainterPath path; |
|
342 |
||
343 |
if(points.size()) |
|
344 |
{ |
|
345 |
QPointF p = points[0] + QPointF(0.01, 0.01); |
|
346 |
path.moveTo(p); |
|
347 |
||
348 |
foreach(QPoint p, points) |
|
6616
f77bb02b669f
astyle -C -S -L -N --style=allman --recursive "QTfrontend/*.cpp" "QTfrontend/*.h"
nemo
parents:
5858
diff
changeset
|
349 |
path.lineTo(p); |
4442 | 350 |
} |
351 |
||
352 |
return path; |
|
353 |
} |
|
6781 | 354 |
|
355 |
quint8 DrawMapScene::serializePenWidth(int width) |
|
356 |
{ |
|
357 |
return (width - 6) / 10; |
|
358 |
} |
|
359 |
||
360 |
int DrawMapScene::deserializePenWidth(quint8 width) |
|
361 |
{ |
|
362 |
return width * 10 + 6; |
|
363 |
} |