--- /dev/null
+/*
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
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+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+http://www.gnu.org/licenses/gpl-3.0.txt
+*/
+/**
+ * @file ffchartlegend.cpp
+ * @brief Implementation of the FFChartLegend class
+ *
+ * @author ComArch S.A.
+ * @date 2009.08.20
+ * @version 1.0
+ */
+#include "ffchartlegend.h"
+
+/**
+ * Constructs a FFChartLegend with a parent.
+ */
+FFChartLegend::FFChartLegend(QWidget* parent) :
+ FFAbstractWidget(parent)
+{
+ this->parent = parent;
+ init();
+}
+
+/**
+ * A virtual destructor.
+ */
+FFChartLegend::~FFChartLegend()
+{
+ int num = legendSeriesTable.size();
+ for(int i = 0; i < num; ++i)
+ {
+ delete legendSeriesTable.at(0);
+ legendSeriesTable.remove(0);
+ }
+}
+
+/**
+ * Initiates all needed fields and functionality
+ */
+void FFChartLegend::init()
+{
+ //sets default values
+ path = LEGEND_PATH;
+
+ backgroundColor = DEFAULT_LEGEND_BACKGROUND_COLOR;
+ backgroundOpacity = DEFAULT_LEGEND_BACKGROUND_OPACITY;
+
+ actualChangingSeries = NULL;
+
+ //set style
+ setStyleSheet("background-color: transparent");
+
+ //sets layout
+ legendLayout = new QGridLayout(this);
+ legendLayout ->setMargin(0);
+ this->setLayout(legendLayout);
+
+ legendScrollArea = new FFScrollArea(this);
+ legendScrollArea->setFrameStyle(0);
+ legendScrollAreaItem = new QWidget(legendScrollArea);
+ legendScrollAreaLayout = new QGridLayout(legendScrollAreaItem);
+ legendScrollAreaItem->setLayout(legendScrollAreaLayout);
+ legendScrollAreaLayout->setMargin(0);
+ legendScrollAreaLayout->setSpacing(5);
+
+ legendScrollAreaItem->setStyleSheet("background-color: transparent");
+ legendScrollArea->setWidget(legendScrollAreaItem);
+ legendScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ legendScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ legendScrollArea->setFrameStyle(0);
+
+ legendLayout->addWidget(legendScrollArea);
+
+ legendControlPanel = new FFChartLegendControlPanel(this);
+ legendControlPanel->hide();
+
+ //connects
+ connect(legendControlPanel,
+ SIGNAL(penChanged(QPen)),
+ this,
+ SLOT(changeSeriesPen(QPen)));
+}
+
+/**
+ * Supports click event. Shows or hide chart's legend
+ */
+void FFChartLegend::popUp()
+{
+ if(isVisible())
+ {
+ this->hide();
+ }
+ else
+ {
+ this->show();
+ }
+
+}
+
+/**
+ * It updates size of FFChartLegend's elements
+ * Calls changeSize() method
+ */
+void FFChartLegend::resizeEvent(QResizeEvent* event)
+{
+ Q_UNUSED(event)
+ if(this->isVisible())
+ {
+ changeSize();
+ }
+
+}
+/**
+ * Fits size of FFChartLegend's elements chart when show event appeared.
+ * Calls changeSize() method.
+ */
+void FFChartLegend::showEvent(QShowEvent* event)
+{
+ Q_UNUSED(event)
+
+ changeSize();
+}
+
+/**
+ * Add series to FFChartLegend.
+ *
+ * @param series is a pointer to series on a FFChart
+ */
+void FFChartLegend::addSeries(FFChartSeries* series)
+{
+ //creates buttons representing series
+ FFScrollingCheckBox* visibleCheckbox =
+ new FFScrollingCheckBox(legendScrollAreaItem);
+ FFLineButton* modifyButton = new FFLineButton(legendScrollAreaItem);
+
+ //sets series name in buttons
+ visibleCheckbox->setDescription(series->name());
+ visibleCheckbox->setChecked(series->isVisible());
+ visibleCheckbox->disableTitle(true);
+ visibleCheckbox->setTopMargin(8);
+ visibleCheckbox->setBottomMargin(8);
+ visibleCheckbox->setRightMargin(2);
+ visibleCheckbox->setLeftMargin(2);
+ visibleCheckbox->setAttribute(Qt::WA_DeleteOnClose);
+
+ modifyButton->setPen(*series->pen());
+ modifyButton->setAttribute(Qt::WA_DeleteOnClose);
+
+ SeriesContainer* tempSeriesPointer =
+ new SeriesContainer(series,
+ visibleCheckbox,
+ modifyButton);
+ //adds seriesContener to series table
+ legendSeriesTable.append(tempSeriesPointer);
+
+ //adds buttons to layout
+ legendScrollAreaLayout->addWidget(legendSeriesTable.at(legendSeriesTable.size()
+ - 1)->visibleCheckBox_,
+ legendSeriesTable.size() - 1,
+ 0,
+ 1,
+ 2);
+ legendScrollAreaLayout->addWidget(legendSeriesTable.at(legendSeriesTable.size()
+ - 1)->controlPanelButton_,
+ legendSeriesTable.size() - 1,
+ 2,
+ 1,
+ 1);
+
+ //connecting buttons to legend
+ connect(modifyButton,
+ SIGNAL(clicked()),
+ this,
+ SLOT(chooseChangingSeries()));
+ connect(visibleCheckbox, SIGNAL(clicked()), this, SLOT(changeVisible()));
+ changeSize();
+}
+
+/**
+ * Fits size of FFChartLegend's elements
+ */
+void FFChartLegend::changeSize()
+{
+ // sets geometry for legend elements
+ legendControlPanel->setGeometry(0, 0, size().width(), size().height());
+
+ legendScrollAreaItem->setGeometry(0,
+ 0,
+ legendScrollArea->width(),
+ legendSeriesTable.size()
+ * (DEFAULT_BUTTON_HEIGHT
+ + 5));
+ //update legendscrollarea
+ legendScrollArea->setWidget(NULL);
+ legendScrollArea->setWidget(legendScrollAreaItem);
+}
+
+/**
+ * Assign pointer on actual modified series to the temporary pointer.
+ */
+void FFChartLegend::chooseChangingSeries()
+{
+ //check which series was chosen to modification
+ for(int i = 0; i < legendSeriesTable.size(); i++)
+ {
+ if(legendSeriesTable.at(i)->controlPanelButton_
+ == (FFLineButton*)sender())
+ actualChangingSeries = legendSeriesTable.at(i);
+ }
+
+ //sets and shows legendCotnrolPanel
+ legendControlPanel->setPen(*actualChangingSeries->series_->pen());
+ legendControlPanel->show();
+ if(NULL != parent)
+ parent->repaint();
+}
+
+/**
+ * Updates a pen of button representing actual modified series and emits
+ * signal to chart.
+ *
+ * @param pen represents setting series pen
+ */
+
+void FFChartLegend::changeSeriesPen(QPen pen)
+{
+ actualChangingSeries->series_->setPen(pen);
+ actualChangingSeries->controlPanelButton_->setPen(pen);
+ emit updateSeries();
+}
+
+/**
+ * Updates series visibility
+ */
+void FFChartLegend::changeVisible()
+{
+ //looks for pointer to changing series and change it visibility and
+ //state of visibleCheckbox
+
+ for(int i = 0; i < legendSeriesTable.size(); i++)
+ {
+ if(legendSeriesTable.at(i)->visibleCheckBox_
+ == (FFScrollingCheckBox*)sender())
+ {
+ bool
+ tempVisible =
+ !(legendSeriesTable.at(i)->series_->isVisible());
+
+ legendSeriesTable.at(i)->series_->setVisible(tempVisible);
+ legendSeriesTable.at(i)->visibleCheckBox_->setChecked(tempVisible);
+ }
+ }
+
+ emit updateSeries();
+}
+
+/**
+ * Deletes series from series contener
+ *
+ * @param series is a pointer to series that will be removed.
+ */
+void FFChartLegend::deleteSeries(FFChartSeries* series)
+{
+ //looks for given series in legendSeriesTable and deletes it.
+ for(int i = 0; i < legendSeriesTable.size(); i++)
+ {
+ if(series == legendSeriesTable.at(i)->series_)
+ {
+ legendControlPanel->hide();
+
+ delete legendSeriesTable.at(i);
+ legendSeriesTable.remove(i);
+ }
+
+ }
+ changeSize();
+}
+
+/**
+ * Draw FFChartLegend background
+ * @param event Contains all informations about event.
+ */
+void FFChartLegend::paintEvent(QPaintEvent *event)
+{
+ Q_UNUSED(event)
+ QPainter paint;
+ paint.begin(this);
+ paint.setOpacity(backgroundOpacity);
+ paint.setBrush(backgroundColor);
+ paint.setPen(Qt::transparent);
+ paint.drawRect(0, 0, width(), height());
+ paint.end();
+}
+
+/**
+ \fn void FFChartLegend::updateSeries()
+
+ This signal is emitted when the series is/are changed
+ */
+
+/**
+ * Constructs a FFChartLegend with pointers to series, and buttons .
+ */
+SeriesContainer::SeriesContainer(FFChartSeries* series,
+ FFScrollingCheckBox* visibleCheckBox,
+ FFLineButton* controlPanelButton)
+{
+ series_ = series;
+ visibleCheckBox_ = visibleCheckBox;
+ controlPanelButton_ = controlPanelButton;
+}
+
+/**
+ * A virtual destructor
+ */
+SeriesContainer::~SeriesContainer()
+{
+ visibleCheckBox_->close();
+ controlPanelButton_->close();
+}
projects / ffqwlibrary / blobdiff