Visual Servoing Platform version 3.6.0
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vpDisplay.cpp
1/****************************************************************************
2 *
3 * ViSP, open source Visual Servoing Platform software.
4 * Copyright (C) 2005 - 2023 by Inria. All rights reserved.
5 *
6 * This software is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 * See the file LICENSE.txt at the root directory of this source
11 * distribution for additional information about the GNU GPL.
12 *
13 * For using ViSP with software that can not be combined with the GNU
14 * GPL, please contact Inria about acquiring a ViSP Professional
15 * Edition License.
16 *
17 * See https://visp.inria.fr for more information.
18 *
19 * This software was developed at:
20 * Inria Rennes - Bretagne Atlantique
21 * Campus Universitaire de Beaulieu
22 * 35042 Rennes Cedex
23 * France
24 *
25 * If you have questions regarding the use of this file, please contact
26 * Inria at visp@inria.fr
27 *
28 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
29 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
30 *
31 * Description:
32 * Image display.
33 *
34*****************************************************************************/
35
36#include <limits>
37
38#include <visp3/core/vpDisplay.h>
39#include <visp3/core/vpDisplayException.h>
40#include <visp3/core/vpImageConvert.h>
41
42#include <visp3/core/vpMath.h>
43#include <visp3/core/vpMeterPixelConversion.h>
44#include <visp3/core/vpPoint.h>
45
55 : m_displayHasBeenInitialized(false), m_windowXPosition(0), m_windowYPosition(0), m_width(0), m_height(0), m_title(),
56 m_scale(1), m_scaleType(SCALE_DEFAULT)
57{ }
58
63 : m_displayHasBeenInitialized(d.m_displayHasBeenInitialized), m_windowXPosition(d.m_windowXPosition),
64 m_windowYPosition(d.m_windowYPosition), m_width(d.m_width), m_height(d.m_height), m_title(d.m_title),
65 m_scale(d.m_scale), m_scaleType(d.m_scaleType)
66{ }
67
72
139{
140 if (Isrc.display != NULL) {
141 (Isrc.display)->getImage(Idest);
142 }
143 else {
144 vpImageConvert::convert(Isrc, Idest);
145 }
146}
147
213{
214 if (Isrc.display != NULL) {
215 (Isrc.display)->getImage(Idest);
216 }
217 else {
218 Idest = Isrc;
219 }
220}
221
227void vpDisplay::setDownScalingFactor(unsigned int scale)
228{
230 m_scale = scale;
231 else {
232 std::cout << "Warning: Cannot apply the down scaling factor " << scale
233 << " to the display window since the display is initialized yet..." << std::endl;
234 }
235}
236
242unsigned int vpDisplay::computeAutoScale(unsigned int width, unsigned int height)
243{
244 unsigned int screen_width, screen_height;
245 getScreenSize(screen_width, screen_height);
246 double wscale = (std::max)(1., ceil(2. * (double)width / (double)screen_width));
247 double hscale = (std::max)(1., ceil(2. * (double)height / (double)screen_height));
248 unsigned int scale = (unsigned int)(std::max)(1u, (std::max)((unsigned int)wscale, (unsigned int)hscale));
249 return scale;
250}
251
255void vpDisplay::setScale(vpScaleType scaleType, unsigned int width, unsigned int height)
256{
257 switch (scaleType) {
260 break;
263 break;
266 break;
269 break;
272 break;
275 break;
278 break;
281 break;
284 break;
287 break;
290 break;
291 }
292}
293
321{
323 m_scaleType = scaleType;
324}
Class that defines generic functionalities for display.
Definition vpDisplay.h:173
vpScaleType m_scaleType
Definition vpDisplay.h:215
virtual void setDownScalingFactor(unsigned int scale)
virtual ~vpDisplay()
Definition vpDisplay.cpp:71
static void getImage(const vpImage< unsigned char > &Is, vpImage< vpRGBa > &Id)
unsigned int m_scale
Definition vpDisplay.h:214
@ SCALE_DEFAULT
Definition vpDisplay.h:200
bool m_displayHasBeenInitialized
display has been initialized
Definition vpDisplay.h:206
unsigned int computeAutoScale(unsigned int width, unsigned int height)
void setScale(vpScaleType scaleType, unsigned int width, unsigned int height)
static void convert(const vpImage< unsigned char > &src, vpImage< vpRGBa > &dest)
Definition of the vpImage class member functions.
Definition vpImage.h:135
vpDisplay * display
Definition vpImage.h:140