1 /*
2 For general Scribus (>=1.3.2) copyright and licensing information please refer
3 to the COPYING file provided with the program. Following this notice may exist
4 a copyright and/or license notice that predates the release of Scribus 1.3.2
5 for which a new license (GPL+exception) is in place.
6 */
7 /***************************************************************************
8 * Copyright (C) 2011 by Franz Schmid *
9 * franz.schmid@altmuehlnet.de *
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 * This program is distributed in the hope that it will be useful, *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
19 * GNU General Public License for more details. *
20 * *
21 * You should have received a copy of the GNU General Public License *
22 * along with this program; if not, write to the *
23 * Free Software Foundation, Inc., *
24 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
25 ****************************************************************************/
26
27 #if defined(_MSC_VER) && !defined(_USE_MATH_DEFINES)
28 #define _USE_MATH_DEFINES
29 #endif
30 #include <cmath>
31 #include "smoothpath.h"
32 #include "scribuscore.h"
33 #include "scribusdoc.h"
34 #include "appmodes.h"
35 #include "selection.h"
36 #include "util.h"
37 #include <QPainterPath>
38 #include <QPolygonF>
39 #include <QList>
40 #include "KarbonCurveFit.h"
41
smoothpath_getPluginAPIVersion()42 int smoothpath_getPluginAPIVersion()
43 {
44 return PLUGIN_API_VERSION;
45 }
46
smoothpath_getPlugin()47 ScPlugin* smoothpath_getPlugin()
48 {
49 SmoothPathPlugin* plug = new SmoothPathPlugin();
50 Q_CHECK_PTR(plug);
51 return plug;
52 }
53
smoothpath_freePlugin(ScPlugin * plugin)54 void smoothpath_freePlugin(ScPlugin* plugin)
55 {
56 SmoothPathPlugin* plug = qobject_cast<SmoothPathPlugin*>(plugin);
57 Q_ASSERT(plug);
58 delete plug;
59 }
60
SmoothPathPlugin()61 SmoothPathPlugin::SmoothPathPlugin()
62 {
63 // Set action info in languageChange, so we only have to do
64 // it in one place.
65 languageChange();
66 }
67
~SmoothPathPlugin()68 SmoothPathPlugin::~SmoothPathPlugin() {};
69
languageChange()70 void SmoothPathPlugin::languageChange()
71 {
72 // Note that we leave the unused members unset. They'll be initialised
73 // with their default ctors during construction.
74 // Action name
75 m_actionInfo.name = "SmoothPath";
76 // Action text for menu, including accel
77 m_actionInfo.text = tr("Smooth Path");
78 // Menu
79 m_actionInfo.menu = "ItemPathOps";
80 m_actionInfo.parentMenu = "Item";
81 m_actionInfo.subMenuName = tr("Path Tools");
82 m_actionInfo.enabledOnStartup = false;
83 m_actionInfo.notSuitableFor.append(PageItem::Line);
84 m_actionInfo.notSuitableFor.append(PageItem::TextFrame);
85 m_actionInfo.notSuitableFor.append(PageItem::ImageFrame);
86 m_actionInfo.notSuitableFor.append(PageItem::Polygon);
87 m_actionInfo.notSuitableFor.append(PageItem::PathText);
88 m_actionInfo.notSuitableFor.append(PageItem::LatexFrame);
89 m_actionInfo.notSuitableFor.append(PageItem::Symbol);
90 m_actionInfo.notSuitableFor.append(PageItem::RegularPolygon);
91 m_actionInfo.notSuitableFor.append(PageItem::Arc);
92 m_actionInfo.notSuitableFor.append(PageItem::Spiral);
93 m_actionInfo.forAppMode.append(modeNormal);
94 m_actionInfo.needsNumObjects = 1;
95 }
96
fullTrName() const97 QString SmoothPathPlugin::fullTrName() const
98 {
99 return QObject::tr("SmoothPath");
100 }
101
getAboutData() const102 const ScActionPlugin::AboutData* SmoothPathPlugin::getAboutData() const
103 {
104 AboutData* about = new AboutData;
105 Q_CHECK_PTR(about);
106 about->authors = QString::fromUtf8("Franz Schmid <Franz.Schmid@altmuehlnet.de>");
107 about->shortDescription = tr("Smoothes a Path");
108 about->description = tr("Converts a Polyline made of straight Lines to a smoothed Bezier Curve.");
109 // about->version
110 // about->releaseDate
111 // about->copyright
112 about->license = "GPL";
113 return about;
114 }
115
deleteAboutData(const AboutData * about) const116 void SmoothPathPlugin::deleteAboutData(const AboutData* about) const
117 {
118 Q_ASSERT(about);
119 delete about;
120 }
121
run(ScribusDoc * doc,const QString &)122 bool SmoothPathPlugin::run(ScribusDoc* doc, const QString&)
123 {
124 ScribusDoc* currDoc = doc;
125 if (currDoc == nullptr)
126 currDoc = ScCore->primaryMainWindow()->doc;
127 if (currDoc->m_Selection->count() > 0)
128 {
129 PageItem *currItem = currDoc->m_Selection->itemAt(0);
130 QPainterPath pp;
131 if (currItem->itemType() == PageItem::PolyLine)
132 pp = currItem->PoLine.toQPainterPath(false);
133 else
134 pp = currItem->PoLine.toQPainterPath(true);
135 QList<QPolygonF> polyList = pp.toSubpathPolygons();
136 QPainterPath result;
137 for (int a = 0; a < polyList.count(); a++)
138 {
139 result.addPath(bezierFit(polyList[a], 5.0));
140 }
141 currItem->PoLine.fromQPainterPath(result);
142 currItem->ClipEdited = true;
143 currItem->FrameType = 3;
144 currDoc->adjustItemSize(currItem);
145 currItem->OldB2 = currItem->width();
146 currItem->OldH2 = currItem->height();
147 currItem->updateClip();
148 currDoc->regionsChanged()->update(QRectF());
149 currDoc->changed();
150 }
151 return true;
152 }
153