1 /****************************************************************************
2 **
3 ** This file is part of the LibreCAD project, a 2D CAD program
4 **
5 ** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
6 ** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
7 **
8 **
9 ** This file may be distributed and/or modified under the terms of the
10 ** GNU General Public License version 2 as published by the Free Software
11 ** Foundation and appearing in the file gpl-2.0.txt included in the
12 ** packaging of this file.
13 **
14 ** This program is distributed in the hope that it will be useful,
15 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ** GNU General Public License for more details.
18 **
19 ** You should have received a copy of the GNU General Public License
20 ** along with this program; if not, write to the Free Software
21 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 **
23 ** This copyright notice MUST APPEAR in all copies of the script!
24 **
25 **********************************************************************/
26
27 #include<QAction>
28 #include <QMouseEvent>
29 #include "rs_actiondrawlinetangent2.h"
30
31 #include "rs_dialogfactory.h"
32 #include "rs_graphicview.h"
33 #include "rs_creation.h"
34 #include "rs_line.h"
35 #include "rs_preview.h"
36 #include "rs_debug.h"
37
RS_ActionDrawLineTangent2(RS_EntityContainer & container,RS_GraphicView & graphicView)38 RS_ActionDrawLineTangent2::RS_ActionDrawLineTangent2(
39 RS_EntityContainer& container,
40 RS_GraphicView& graphicView)
41 :RS_PreviewActionInterface("Draw Tangents 2", container, graphicView)
42 ,circle1(nullptr)
43 ,circle2(nullptr)
44 ,valid(false)
45 {
46 actionType=RS2::ActionDrawLineTangent2;
47 setStatus(SetCircle1);
48 }
49
50 RS_ActionDrawLineTangent2::~RS_ActionDrawLineTangent2() = default;
51
52
finish(bool updateTB)53 void RS_ActionDrawLineTangent2::finish(bool updateTB){
54 if(circle1){
55 circle1->setHighlighted(false);
56 graphicView->drawEntity(circle1);
57 }
58 RS_PreviewActionInterface::finish(updateTB);
59 }
60
trigger()61 void RS_ActionDrawLineTangent2::trigger() {
62 RS_PreviewActionInterface::trigger();
63
64 RS_Entity* newEntity = new RS_Line(container, *lineData);
65
66 if (newEntity) {
67 newEntity->setLayerToActive();
68 newEntity->setPenToActive();
69 container->addEntity(newEntity);
70
71 // upd. undo list:
72 if (document) {
73 document->startUndoCycle();
74 document->addUndoable(newEntity);
75 document->endUndoCycle();
76 }
77 clearHighlighted();
78
79 setStatus(SetCircle1);
80 }
81 tangent.reset();
82 }
83
clearHighlighted()84 void RS_ActionDrawLineTangent2::clearHighlighted()
85 {
86 for(RS_Entity** p: {&circle1, &circle2}){
87 if(*p){
88 (*p)->setHighlighted(false);
89 graphicView->drawEntity(*p);
90 *p=nullptr;
91 }
92 }
93 }
94
mouseMoveEvent(QMouseEvent * e)95 void RS_ActionDrawLineTangent2::mouseMoveEvent(QMouseEvent* e) {
96 // RS_DEBUG->print("RS_ActionDrawLineTangent2::mouseMoveEvent begin");
97 e->accept();
98 if(getStatus() != SetCircle2) return;
99 RS_Entity* en= catchEntity(e, circleType, RS2::ResolveAll);
100 if(!en || en==circle1) return;
101 if(circle2){
102 circle2->setHighlighted(false);
103 graphicView->drawEntity(circle2);
104 }
105 circle2=en;
106 circle2->setHighlighted(true);
107 graphicView->drawEntity(circle2);
108 RS_Creation creation(nullptr, nullptr);
109 RS_Vector mouse(graphicView->toGraphX(e->x()),
110 graphicView->toGraphY(e->y()));
111 tangent.reset(creation.createTangent2(mouse,
112 circle1,
113 circle2));
114 if(!tangent.get()){
115 valid=false;
116 return;
117 }
118 valid=true;
119 lineData.reset(new RS_LineData(tangent->getData()));
120
121 deletePreview();
122 preview->addEntity(new RS_Line(preview.get(), *lineData));
123 drawPreview();
124 }
125
mouseReleaseEvent(QMouseEvent * e)126 void RS_ActionDrawLineTangent2::mouseReleaseEvent(QMouseEvent* e) {
127
128 if (e->button()==Qt::RightButton) {
129 deletePreview();
130 init(getStatus()-1);
131 if(getStatus()>=0){
132 clearHighlighted();
133 }
134 return;
135 }
136 switch (getStatus()) {
137 case SetCircle1:
138 {
139 circle1 = catchEntity(e, circleType, RS2::ResolveAll);
140 if(!circle1) return;
141 circle1->setHighlighted(true);
142 graphicView->drawEntity(circle1);
143 setStatus(getStatus()+1);
144 }
145 break;
146
147 case SetCircle2:
148 if(valid) trigger();
149 break;
150 }
151 }
152
updateMouseButtonHints()153 void RS_ActionDrawLineTangent2::updateMouseButtonHints() {
154 switch (getStatus()) {
155 case SetCircle1:
156 RS_DIALOGFACTORY->updateMouseWidget(tr("Select first circle or ellipse"),
157 tr("Cancel"));
158 break;
159 case SetCircle2:
160 RS_DIALOGFACTORY->updateMouseWidget(tr("Select second circle or ellipse"),
161 tr("Back"));
162 break;
163 default:
164 RS_DIALOGFACTORY->updateMouseWidget();
165 break;
166 }
167 }
168
updateMouseCursor()169 void RS_ActionDrawLineTangent2::updateMouseCursor() {
170 graphicView->setMouseCursor(RS2::SelectCursor);
171 }
172
173 // EOF
174