2 GNU GENERAL PUBLIC LICENSE
3 Version 3, 29 June 2007
5 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
6 Everyone is permitted to copy and distribute verbatim copies
7 of this license document, but changing it is not allowed.
11 The GNU General Public License is a free, copyleft license for
12 software and other kinds of works.
14 The licenses for most software and other practical works are designed
15 to take away your freedom to share and change the works. By contrast,
16 the GNU General Public License is intended to guarantee your freedom to
17 share and change all versions of a program--to make sure it remains free
18 software for all its users. We, the Free Software Foundation, use the
19 GNU General Public License for most of our software; it applies also to
20 any other work released this way by its authors. You can apply it to
23 When we speak of free software, we are referring to freedom, not
24 price. Our General Public Licenses are designed to make sure that you
25 have the freedom to distribute copies of free software (and charge for
26 them if you wish), that you receive source code or can get it if you
27 want it, that you can change the software or use pieces of it in new
28 free programs, and that you know you can do these things.
30 To protect your rights, we need to prevent others from denying you
31 these rights or asking you to surrender the rights. Therefore, you have
32 certain responsibilities if you distribute copies of the software, or if
33 you modify it: responsibilities to respect the freedom of others.
35 For example, if you distribute copies of such a program, whether
36 gratis or for a fee, you must pass on to the recipients the same
37 freedoms that you received. You must make sure that they, too, receive
38 or can get the source code. And you must show them these terms so they
41 Developers that use the GNU GPL protect your rights with two steps:
42 (1) assert copyright on the software, and (2) offer you this License
43 giving you legal permission to copy, distribute and/or modify it.
45 For the developers' and authors' protection, the GPL clearly explains
46 that there is no warranty for this free software. For both users' and
47 authors' sake, the GPL requires that modified versions be marked as
48 changed, so that their problems will not be attributed erroneously to
49 authors of previous versions.
51 Some devices are designed to deny users access to install or run
52 modified versions of the software inside them, although the manufacturer
53 can do so. This is fundamentally incompatible with the aim of
54 protecting users' freedom to change the software. The systematic
55 pattern of such abuse occurs in the area of products for individuals to
56 use, which is precisely where it is most unacceptable. Therefore, we
57 have designed this version of the GPL to prohibit the practice for those
58 products. If such problems arise substantially in other domains, we
59 stand ready to extend this provision to those domains in future versions
60 of the GPL, as needed to protect the freedom of users.
62 Finally, every program is threatened constantly by software patents.
63 States should not allow patents to restrict development and use of
64 software on general-purpose computers, but in those that do, we wish to
65 avoid the special danger that patents applied to a free program could
66 make it effectively proprietary. To prevent this, the GPL assures that
67 patents cannot be used to render the program non-free.
69 The precise terms and conditions for copying, distribution and
72 http://www.gnu.org/licenses/gpl-3.0.txt
75 * @file ffchartbutton.cpp
76 * @brief Implementation of the FFChartButton class.
78 * @author ComArch S.A.
81 * Extend QGraphicsSvgItem to easy use 1 or 2 image and added functionality
82 * to decrease and increase item after click
85 #include "ffchartbutton.h"
88 * Constructs a FFChartButton with a parent.
89 * Set variables to initial values.
91 FFChartButton::FFChartButton(QGraphicsItem* parent) :
92 QGraphicsSvgItem(parent)
98 * A virtual destructor of FFChartButton.
100 FFChartButton::~FFChartButton()
106 * Set variables to initial values.
108 void FFChartButton::init()
110 //sets default values
111 state = false; //usefull when changing beetwen 2 images, it remember click state - what image should be display
112 twoImageON = false; //state to store if the button have 2 images
113 startedTimeLine = false; //state to store if time line ends
116 frameRange_ = DEFAULT_FRAME_RANGE;
117 duration_ = DEFAULT_DURATION_TIME;
118 zoomRatio_ = DEFAULT_ZOOM_RATIO;
122 image = new FFViewCache;
123 image2 = new FFViewCache;
125 //sets animation's parameters
126 animation = new QTimeLine(duration_, this);
127 animation->setFrameRange(0, frameRange_);
128 animation->setUpdateInterval(duration_ / frameRange_);
131 connect(animation, SIGNAL(frameChanged(int)), this, SLOT(tick(int)));
132 connect(animation, SIGNAL(finished()), this, SLOT(animationFinished()));
136 * Function responsible for animation (zooming)
137 * @param frame Number of the frame
139 void FFChartButton::tick(int frame)
142 qreal width = this->boundingRect().width();
143 qreal height = this->boundingRect().height();
145 QGraphicsSvgItem::scale(1 / sizeRatio, 1 / sizeRatio);
147 //Setting scaling ratio
148 //first part of animation
149 if(frame <= frameRange_ / 2)
151 ratio = ((zoomRatio_ - 1) * (frame)) / (frameRange_ / 2) + 1;
153 //second part of animation
154 else if(frame <= frameRange_)
156 ratio = (zoomRatio_ - 1) * (frameRange_ - frame) / (frameRange_
161 //change scale and posiotion of button
162 QGraphicsSvgItem::scale(ratio, ratio);
163 this->setPos(startingPosition.x() - ((ratio * width - width)
164 * scaleWidth / 2), startingPosition.y() - ((ratio
165 * height - height) * scaleHeight / 2));
169 * Function to handle situation when animation reach end
171 void FFChartButton::animationFinished()
175 startedTimeLine = false;
180 * @param path Path to image
182 void FFChartButton::setImage(QString path)
184 image->init(path + ".svg");
185 image->updateView(image->defaultSize());
186 setSharedRenderer(image->renderer());
193 * @param path Path to first image
194 * @param path2 Path to second image
196 void FFChartButton::setImage(QString path, QString path2)
199 image->init(path + ".svg");
200 image2->init(path2 + ".svg");
202 setSharedRenderer(image->renderer());
208 * @param size New size of the item
210 void FFChartButton::setSize(const QSizeF& size)
212 qreal tmpScaleWidth = size.toSize().width() / boundingRect().width()
214 qreal tmpScaleHeight = size.toSize().height() / boundingRect().height()
216 scale(tmpScaleWidth, tmpScaleHeight);
220 * Set if item will be increasing (zoomRatio>1) or will be decreasing (zoomRatio<1)
221 * @param zoomRatio How much size will be changing during animation
223 void FFChartButton::setZoomRatio(qreal zoomRatio)
225 zoomRatio_ = zoomRatio;
229 * Set number of frame in animation
230 * @param frameRange Number of frames
232 void FFChartButton::setFrameRange(int frameRange)
234 frameRange_ = frameRange;
235 animation->setFrameRange(0, frameRange_);
239 * Set how much time animation take
240 * @param duration Time of animation
242 void FFChartButton::setDuration(int duration)
244 duration_ = duration;
245 animation->setDuration(duration_);
250 * @param sx Size of scale in width
251 * @param sy Size of scale in height
253 void FFChartButton::scale(qreal sx, qreal sy)
255 scaleWidth = sx * scaleWidth;
256 scaleHeight = sy * scaleHeight;
257 QGraphicsSvgItem::scale(scaleWidth, scaleHeight);
261 * Return if the item will be increasing (zoomRatio>1) or will be decreasing (zoomRatio<1)
263 qreal FFChartButton::zoomRatio()
269 * Return number of frame in animation
271 int FFChartButton::frameRange()
277 * Return how much time animation take
279 int FFChartButton::duration()
285 * Support mouse release event.
286 * @param event Contains all informations about event.
288 void FFChartButton::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
291 //If button has two images they are toggled
296 setSharedRenderer(image2->renderer());
300 setSharedRenderer(image->renderer());
308 startingPosition = this->pos();
310 startedTimeLine = true;
316 * Support mouse press event.
317 * @param event Contains all informations about event.
319 void FFChartButton::mousePressEvent(QGraphicsSceneMouseEvent* event)
326 * \fn void FFChartButton::mouseRelease()
327 * This signal is emitted when the item is released.
331 * \fn void FFChartButton::mousePress()
332 * This signal is emitted when the item is pressed.