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<cmath>
28 #include <QAction>
29 #include <QMouseEvent>
30 #include "rs_actionzoomwindow.h"
31
32 #include "rs_dialogfactory.h"
33 #include "rs_graphicview.h"
34 #include "rs_line.h"
35 #include "rs_preview.h"
36 #include "rs_debug.h"
37
38 struct RS_ActionZoomWindow::Points {
39 RS_Vector v1;
40 RS_Vector v2;
41 };
42
43
44 /**
45 * Default constructor.
46 *
47 * @param keepAspectRatio Keep the aspect ratio. true: the factors
48 * in x and y will stay the same. false Exactly the chosen
49 * area will be fit to the viewport.
50 */
RS_ActionZoomWindow(RS_EntityContainer & container,RS_GraphicView & graphicView,bool keepAspectRatio)51 RS_ActionZoomWindow::RS_ActionZoomWindow(RS_EntityContainer& container,
52 RS_GraphicView& graphicView, bool keepAspectRatio)
53 : RS_PreviewActionInterface("Zoom Window",
54 container, graphicView)
55 , pPoints(new Points{})
56 , keepAspectRatio(keepAspectRatio)
57 {
58 }
59
60 RS_ActionZoomWindow::~RS_ActionZoomWindow() = default;
61
62
init(int status)63 void RS_ActionZoomWindow::init(int status) {
64 RS_DEBUG->print("RS_ActionZoomWindow::init()");
65
66 RS_PreviewActionInterface::init(status);
67 pPoints.reset(new Points{});
68 //deleteSnapper();
69 // snapMode.clear();
70 // snapMode.restriction = RS2::RestrictNothing;
71 }
72
73
74
trigger()75 void RS_ActionZoomWindow::trigger() {
76 RS_DEBUG->print("RS_ActionZoomWindow::trigger()");
77
78 RS_PreviewActionInterface::trigger();
79
80 if (pPoints->v1.valid && pPoints->v2.valid) {
81 deletePreview();
82 //deleteSnapper();
83 if (graphicView->toGuiDX(pPoints->v1.distanceTo(pPoints->v2))>5) {
84 graphicView->zoomWindow(pPoints->v1, pPoints->v2, keepAspectRatio);
85 init();
86 }
87 }
88 }
89
90
91
mouseMoveEvent(QMouseEvent * e)92 void RS_ActionZoomWindow::mouseMoveEvent(QMouseEvent* e) {
93 snapFree(e);
94 drawSnapper();
95 if (getStatus()==SetSecondCorner && pPoints->v1.valid) {
96 pPoints->v2 = snapFree(e);
97 deletePreview();
98 preview->addRectangle(pPoints->v1, pPoints->v2);
99 drawPreview();
100 }
101 }
102
103
104
mousePressEvent(QMouseEvent * e)105 void RS_ActionZoomWindow::mousePressEvent(QMouseEvent* e) {
106 if (e->button()==Qt::LeftButton) {
107 switch (getStatus()) {
108 case SetFirstCorner:
109 pPoints->v1 = snapFree(e);
110 drawSnapper();
111 setStatus(SetSecondCorner);
112 break;
113
114 default:
115 break;
116 }
117 }
118
119 RS_DEBUG->print("RS_ActionZoomWindow::mousePressEvent(): %f %f",
120 pPoints->v1.x, pPoints->v1.y);
121 }
122
123
124
mouseReleaseEvent(QMouseEvent * e)125 void RS_ActionZoomWindow::mouseReleaseEvent(QMouseEvent* e) {
126 RS_DEBUG->print("RS_ActionZoomWindow::mouseReleaseEvent()");
127
128 if (e->button()==Qt::RightButton) {
129 if (getStatus()==SetSecondCorner) {
130 deletePreview();
131 }
132 init(getStatus()-1);
133 } else if (e->button()==Qt::LeftButton) {
134 if (getStatus()==SetSecondCorner) {
135 pPoints->v2 = snapFree(e);
136 if( fabs(pPoints->v1.x-pPoints->v2.x) < RS_TOLERANCE
137 || fabs(pPoints->v1.y-pPoints->v2.y) < RS_TOLERANCE ) {//invalid zoom window
138 deletePreview();
139 init(getStatus()-1);
140 }
141 trigger();
142 }
143 }
144 }
145
146
147
updateMouseButtonHints()148 void RS_ActionZoomWindow::updateMouseButtonHints() {
149 RS_DEBUG->print("RS_ActionZoomWindow::updateMouseButtonHints()");
150
151 switch (getStatus()) {
152 case SetFirstCorner:
153 RS_DIALOGFACTORY->updateMouseWidget(tr("Specify first edge"), tr("Cancel"));
154 break;
155 case SetSecondCorner:
156 RS_DIALOGFACTORY->updateMouseWidget(tr("Specify second edge"), tr("Back"));
157 break;
158 default:
159 RS_DIALOGFACTORY->updateMouseWidget();
160 break;
161 }
162 }
163
164
165
updateMouseCursor()166 void RS_ActionZoomWindow::updateMouseCursor() {
167 graphicView->setMouseCursor(RS2::MagnifierCursor);
168 }
169
170
171 // EOF
172