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3 Version 3, 29 June 2007
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76 * @brief Implementation of the FFDPad class
78 * @author ComArch S.A.
86 * Constructs a FFDPad with a parent
88 FFDPad::FFDPad(QWidget* parent) :
89 FFAbstractWidget(parent), size_(DEFAULT_SIZE, DEFAULT_SIZE)
95 * Constructs a FFDPad with given size and parent.
97 FFDPad::FFDPad(QSize size, QWidget* parent) :
98 FFAbstractWidget(parent)
100 this->size_ = QSize(size.width(),size.height());
104 /** A virtual destructor */
110 * Initiates FFDPad class. Sets all needed fields, connections and calls.
111 * It is called by all constructors.
117 setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
118 setMinimumSize(QSize(DEFAULT_MIN_SIZE, DEFAULT_MIN_SIZE));
120 //Sets default values
127 if(size_.height() <= 0 || size_.width() <= 0)
129 this->size_ = QSize(DEFAULT_SIZE,DEFAULT_SIZE);
132 layout = new QGridLayout(this);
133 layout->setMargin(0);
134 layout->setSpacing(0);
136 background = new FFViewCache(this);
138 //creates FFDPadButtons
139 buttonUp = new FFDPadButton(path + "_button_up",
142 buttonDown = new FFDPadButton(path + "_button_down",
145 buttonLeft = new FFDPadButton(path + "_button_left",
148 buttonRight = new FFDPadButton(path + "_button_right",
152 connect(buttonUp,SIGNAL(clicked(int)),this,SIGNAL(clicked(int)));
153 connect(buttonDown,SIGNAL(clicked(int)),this,SIGNAL(clicked(int)));
154 connect(buttonLeft,SIGNAL(clicked(int)),this,SIGNAL(clicked(int)));
155 connect(buttonRight,SIGNAL(clicked(int)),this,SIGNAL(clicked(int)));
157 //adds buttons to layout
158 layout->addWidget(buttonUp, 0, 0, 1, 1);
159 layout->addWidget(buttonDown, 0, 0, 1, 1);
160 layout->addWidget(buttonLeft, 0, 0, 1, 1);
161 layout->addWidget(buttonRight, 0, 0, 1, 1);
163 this->setSize(size_);
165 background->init(path + "_background.svg");
166 background->updateView(size_);
172 * Returns size of FFDPad
174 QSize FFDPad::size() const
176 return this->geometry().size();
180 * Sets FFDPad's size.
181 * If both edges are equal FFDPad have it`s maximum size cause it is always square.
182 * If size`s parameters are not equal then FFDPad is located in center of the widget.
183 * @param size Size of FFDPad widget
185 void FFDPad::setSize(QSize size)
188 buttonUp -> setSize(size_);
189 buttonDown -> setSize(size_);
190 buttonLeft -> setSize(size_);
191 buttonRight -> setSize(size_);
192 setGeometry(geometry().x(), geometry().y(), size.width(), size.height());
196 * Updates FFDPad view and events' mask after changing size of the widget,
197 * only when resizable_ is set up.
198 * Overrides the virtual method from QWidget.
199 * @param event Contains all informations about event.
201 void FFDPad::resizeEvent(QResizeEvent* event)
203 calculateSize(event->size());
204 buttonUp -> setSize(size_);
205 buttonDown -> setSize(size_);
206 buttonLeft -> setSize(size_);
207 buttonRight -> setSize(size_);
208 background -> updateView(size_);
212 if(event ->size().width() > event -> size().height())
214 ax = (size_.width() - event -> size().width()) / 2;
218 ay = (size_.height() - event -> size().height()) / 2;
221 buttonUp -> move(-ax, -ay);
222 buttonDown -> move(-ax, -ay);
223 buttonLeft -> move(-ax, -ay);
224 buttonRight -> move(-ax, -ay);
229 * Repaints the view of the FFDPAd. Overrides the virtual method from QWidget.
230 * @param event Contains all informations about event.
232 void FFDPad::paintEvent(QPaintEvent* event)
235 QPainter paint(this);
236 paint.setOpacity(0.3);
237 paint.drawPixmap(-ax, -ay, background->pixmap());
241 * Check and save size of the widget. Determine the size of the square.
242 * @param size Size to calculate square.
244 void FFDPad::calculateSize(QSize size)
246 if(size.height() <= 0 || size.width() <= 0)
248 this->size_ = QSize(DEFAULT_SIZE, DEFAULT_SIZE);
252 if(size.width() > size.height())
254 this->size_ = QSize(size.height(),size.height());
258 this->size_ = QSize(size.width(),size.width());
265 \fn void FFDPad::clicked(int type)
267 This signal is emitted when the one of four buttons will be released.