--- /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,
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+share and change all versions of a program--to make sure it remains free
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+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.
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+
+ 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.
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+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
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+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
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+stand ready to extend this provision to those domains in future versions
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+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
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+avoid the special danger that patents applied to a free program could
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+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+http://www.gnu.org/licenses/gpl-3.0.txt
+*/
+/**
+ * @file ffabstractcombobox.cpp
+ * @brief Implementation of the FFAbstractComboBox and FFComboPopUp class.
+ *
+ * @author ComArch S.A.
+ * @date 2009.10.09
+ * @version 1.0
+ *
+ * This widget has activator(to open popup window) and popup window(to select item)
+ * FFAbstractComboBox and FFComboPopUp are friend classes in both directions
+ */
+
+#include "ffabstractcombobox.h"
+
+/**
+ * Rounds argument up.
+ * @param var is an argument to round up
+ * @return value of rounded up argument
+ */
+
+float roundUp(float var)
+{
+ if(0 > ((int)var - var ))
+ {
+ return (int)var + 1;
+ }
+ else
+ {
+ return (int)var;
+ }
+}
+
+/**
+ * Constructs a FFAbstractButton with a parent.
+ * Sets variable to initial values.
+ */
+FFAbstractComboBox::FFAbstractComboBox(FFAbstractButton* activator, QWidget* parent):
+ QWidget(parent)
+{
+ cols_ = 1;
+
+ //sets activator
+ activator_ = activator;
+ activator_->setObjectName("Activator");
+
+ //sets layout of combobx
+ mainLayout = new QGridLayout();
+ mainLayout->setMargin(0);
+ mainLayout->setSpacing(0);
+ mainLayout->addWidget(activator_);
+ setLayout(mainLayout);
+
+ //sets popup
+ popUp = new FFComboPopUp(this);
+ popUp->setWindowFlags(Qt::SplashScreen);
+ popUp->setGeometry(QApplication::desktop()->geometry());
+ popUp->hide();
+ popUp->setWindowModality(Qt::WindowModal);
+
+ setSizePolicy(QSizePolicy::Minimum,QSizePolicy::Minimum);
+
+ //connects
+ connect(activator_, SIGNAL(clicked()), popUp, SLOT(exec()));
+ connect(this, SIGNAL(reset()),popUp,SLOT(recreatePopUp()));
+ connect(this, SIGNAL(itemsChanged(FFAbstractButton*)),popUp,SLOT(registerNewItem(FFAbstractButton*)));
+}
+/**
+ * A virtual destructor of FFAbstractButton.
+ */
+FFAbstractComboBox::~FFAbstractComboBox()
+{
+ ;
+}
+
+/**
+ * Removes item from combobox
+ * @param index is a index of item
+ */
+void FFAbstractComboBox::removeItem(int index)
+{
+ if(items_.size()>index)
+ {
+ disconnect(items_.at(index));
+ delete items_.takeAt(index);
+ }
+ emit reset();
+}
+/**
+ * Calls setActivatorSpecs and emits signals activated(QVariant),activated(int)
+ * @param index is a index of item
+ */
+void FFAbstractComboBox::setCurrentItem(int index)
+{
+ if(items_.size()>index)
+ {
+ setActivatorSpecs(items_.at(index));
+ if(!signalsBlocked())
+ {
+ emit activated(activatorSpecs());
+ emit activated(index);
+ }
+ }
+}
+/**
+ * Returns pointer to activator
+ */
+FFAbstractButton* FFAbstractComboBox::activator()
+{
+ return activator_;
+}
+/**
+ * Returns number of columns
+ */
+int FFAbstractComboBox::cols()
+{
+ return cols_;
+}
+/**
+ * Returns list of items
+ */
+QList<FFAbstractButton*> FFAbstractComboBox::items()
+{
+ return items_;
+}
+/**
+ * Returns popup's layout spacing
+ */
+int FFAbstractComboBox::spacing()
+{
+ return popUp->scrollAreaLayout->spacing();
+}
+/**
+ * Sets columns number
+ * @param cols a number of columns
+ */
+void FFAbstractComboBox::setCols(int cols)
+{
+ cols_ = cols;
+ emit reset();
+}
+/**
+ * Sets popup's layout spacing
+ * @param spacing a size of spacing
+ */
+void FFAbstractComboBox::setSpacing(int spacing)
+{
+ popUp->scrollAreaLayout->setSpacing(spacing);
+ emit reset();
+}
+/**
+ * Adds item to combobox
+ * @param item a pointer to adding item
+ * @param autoRecreate defines if layout should be recreated automatically
+ */
+void FFAbstractComboBox::insertItem(FFAbstractButton* item, bool autoRecreate)
+{
+ items_.append(item);
+ emit itemsChanged(item);
+
+ if(autoRecreate)
+ {
+ emit reset();
+ }
+}
+
+/**
+ * Constructs a FFComboPopUp with a parent.
+ * Sets variable to initial values.
+ */
+FFComboPopUp::FFComboPopUp(QWidget* parent) : QDialog(parent)
+{
+
+ parentCB = dynamic_cast<FFAbstractComboBox*>(parent);
+ //sets popup window's layout
+ popUpLayout = new QGridLayout();
+ popUpLayout->setMargin(0);
+ popUpLayout->setSpacing(0);
+
+ //sets scrollarea and scrollarea's widget
+ scrollArea = new FFScrollArea();
+ scrollArea->setWidgetResizable(true);
+
+ popUpLayout->addWidget(scrollArea,0,0);
+ setLayout(popUpLayout);
+
+ scrollAreaLayout = new QGridLayout();
+ scrollAreaLayout->setSpacing(5);
+ scrollAreaLayout->setMargin(0);
+
+ scrollAreaWidget = new QWidget();
+ scrollAreaWidget->setStyleSheet("background-color:black;");
+
+ scrollAreaWidget->setLayout(scrollAreaLayout);
+ scrollArea->setWidget(scrollAreaWidget);
+
+ //sets back button
+ backButton = new FFAbstractButton;
+ backButton->setMargins(0,0,5,5);
+ backButton->setIconAlignment(Qt::AlignRight);
+ backButton->setIcon(QIcon(QPixmap(":/standard/combo_colorarrow.svg")));
+ scrollAreaLayout->addWidget(backButton,0,0,1,parentCB->cols_);
+
+ //connect
+ connect(backButton,SIGNAL(clicked()),this,SLOT(reject()));
+}
+/**
+ * Serves show event. Override method from mother class.
+ */
+void FFComboPopUp::showEvent(QShowEvent* event)
+{
+ // The calculation of the size of the window so that it occupied little space as possible.
+
+ int itemsHeight = 0;
+
+ // for each row
+ for(int i=0; i<roundUp((float)parentCB->items_.size()/(float)parentCB->cols_); ++i)
+ {
+ // height of an element
+ itemsHeight += parentCB->items_.at(i)->minimumHeight();
+
+ //height of an spacing
+ itemsHeight += scrollAreaLayout->spacing();
+ }
+ itemsHeight += backButton->minimumHeight();
+
+ if(itemsHeight > QApplication::desktop()->geometry().height())
+ itemsHeight = QApplication::desktop()->geometry().height();
+
+ setGeometry(0,0,QApplication::desktop()->geometry().width(),itemsHeight);
+
+ QDialog::showEvent(event);
+
+}
+/**
+ * Refreshes popup layout at view event
+ */
+void FFComboPopUp::recreatePopUp()
+{
+ // Deleting old objects
+ QLayoutItem *child;
+ while((child = scrollAreaLayout->takeAt(0)) != 0)
+ {
+ delete child;
+ }
+
+ // Arranging objects on the popup
+ scrollAreaLayout->addWidget(backButton,0,0,1,parentCB->cols_);
+ for(int i=0, cols=0, rows=1; i<parentCB->items_.size();++i,++cols)
+ {
+ if(cols==parentCB->cols_)
+ {
+ ++rows;
+ }
+ cols%=parentCB->cols_;
+ scrollAreaLayout->addWidget(parentCB->items_.at(i),rows,cols);
+ }
+
+ // Force refresh FFScrollArea (this line exist because FFScrollArea have a little imperfection - event filter problem)
+ scrollArea->setWidget(scrollAreaWidget);
+}
+/**
+ * Connects new item signal clicked to actual widget's slot accept
+ */
+void FFComboPopUp::registerNewItem(FFAbstractButton* newItem)
+{
+ connect(newItem,SIGNAL(clicked()),this,SLOT(accept()));
+}
+/**
+ * Calls setCurrentItem with widget index
+ */
+void FFComboPopUp::accept()
+{
+ parentCB->setCurrentItem(scrollAreaLayout->indexOf(dynamic_cast<QWidget*>(sender()))-1);
+ QDialog::accept();
+}
+
+/**
+ \fn void FFAbstractComboBox::reset()
+ *This signal is emitted when is necessary to refresh layout of popup window.
+ */
+
+/**
+ \fn void FFAbstractComboBox::activated(QVariant spec)
+ *This signal is emitted when option on combobox was chosen.
+ *@param spec contains specific chosen value
+ */
+
+/**
+ \fn void FFAbstractComboBox::activated(int index)
+ *This signal is emitted when option on combobox was chosen.
+ *@param index contains index of chosen item
+ */
+
+
+/**
+ \fn void FFComboPopUp::selected(FFAbstractButton* selectedButton)
+ *This signal is emitted when item was selected
+ *@param selectedButton pointer to selected item
+ */
projects / ffqwlibrary / blobdiff