drop QMultiComboBox for activities selection
--QMultiComboBox couldnt cooperate nicely with the TableView, a different approach is needed. Probably it is easier to just add a text indicator for the selected activitiespull/1/head
Michail Vourlakos
8 years ago
parent
747fe2fd02
commit
0dfdd75746
@ -1,213 +0,0 @@
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/****************************************************************************
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**
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** Copyright (c) 2012 Richard Steffen and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: rsteffen@messbild.de, rsteffen@uni-bonn.de
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**
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** QMultiComboBox is free to use unter the terms of the LGPL 2.1 License in
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** Free and Commercial Products.
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****************************************************************************/
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#include "QMultiComboBox.h"
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#include <QApplication>
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#include <QCoreApplication>
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#include <QDesktopWidget>
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QMultiComboBox::QMultiComboBox(QWidget *widget ) :
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QComboBox(widget),
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popheight_(0),
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screenbound_(50),
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popframe_(NULL, Qt::Popup)
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{
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SetDisplayText("Not Set");
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// setup the popup list
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vlist_.setSelectionMode(QAbstractItemView::MultiSelection);
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vlist_.setSelectionBehavior(QAbstractItemView::SelectItems);
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vlist_.clearSelection();
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popframe_.setLayout(new QVBoxLayout());
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popframe_.layout()->addWidget(&vlist_);
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popframe_.layout()->setContentsMargins(0,0,0,0);
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connect(&vlist_, SIGNAL(itemChanged(QListWidgetItem*)), this, SLOT(scanItemSelect(QListWidgetItem*)));
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}
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QMultiComboBox::~QMultiComboBox()
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{
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disconnect(&vlist_,0,0,0);
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}
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void QMultiComboBox::SetDisplayText(QString text)
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{
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m_DisplayText_ = text;
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const int textWidth = fontMetrics().width(text);
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setMinimumWidth(textWidth + 30);
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updateGeometry();
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repaint();
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}
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QString QMultiComboBox::GetDisplayText() const
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{
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return m_DisplayText_;
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}
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void QMultiComboBox::setPopupHeight(int h)
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{
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popheight_ = h;
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}
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void QMultiComboBox::paintEvent(QPaintEvent *e)
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{
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QStylePainter painter(this);
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painter.setPen(palette().color(QPalette::Text));
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// draw the combobox frame, focusrect and selected etc.
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QStyleOptionComboBox opt;
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initStyleOption(&opt);
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opt.currentText = m_DisplayText_;
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painter.drawComplexControl(QStyle::CC_ComboBox, opt);
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// draw the icon and text
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painter.drawControl(QStyle::CE_ComboBoxLabel, opt);
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}
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void QMultiComboBox::showPopup()
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{
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QRect rec = QRect(geometry());
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//QPoint p = this->mapToGlobal(QPoint(0,rec.height()));
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//QRect rec2(p , p + QPoint(rec.width(), rec.height()));
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// get the two possible list points and height
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QRect screen = QApplication::desktop()->screenGeometry(this);
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QPoint above = this->mapToGlobal(QPoint(0,0));
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int aboveHeight = above.y() - screen.y();
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QPoint below = this->mapToGlobal(QPoint(0,rec.height()));
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int belowHeight = screen.bottom() - below.y();
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// first activate it with height 1px to get all the items initialized
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QRect rec2;
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rec2.setTopLeft(below);
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rec2.setWidth(rec.width());
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rec.setHeight(1);
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popframe_.setGeometry(rec2);
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popframe_.raise();
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popframe_.show();
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QCoreApplication::processEvents();
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// determine rect
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int contheight = vlist_.count()*vlist_.sizeHintForRow(0) + 4; // +4 - should be determined by margins?
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belowHeight = min(abs(belowHeight)-screenbound_, contheight);
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aboveHeight = min(abs(aboveHeight)-screenbound_, contheight);
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if (popheight_ > 0) // fixed
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{
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rec2.setHeight(popheight_);
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}
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else // dynamic
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{
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// do we use below or above
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if (belowHeight==contheight || belowHeight>aboveHeight)
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{
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rec2.setTopLeft(below);
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rec2.setHeight(belowHeight);
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}
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else
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{
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rec2.setTopLeft(above - QPoint(0,aboveHeight));
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rec2.setHeight(aboveHeight);
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}
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}
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popframe_.setGeometry(rec2);
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popframe_.raise();
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popframe_.show();
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}
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void QMultiComboBox::hidePopup()
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{
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popframe_.hide();
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}
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void QMultiComboBox::addItem ( const QString & text, const QVariant & userData)
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{
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QListWidgetItem* wi = new QListWidgetItem(text);
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wi->setFlags(wi->flags() | Qt::ItemIsUserCheckable);
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if (userData.toBool())
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wi->setCheckState(Qt::Checked);
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else
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wi->setCheckState(Qt::Unchecked);
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vlist_.addItem(wi);
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}
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int QMultiComboBox::count()
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{
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return vlist_.count();
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}
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void QMultiComboBox::setCurrentIndex(int index)
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{
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cout << __FUNCTION__ << "DONT USE THIS ................" << endl;
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}
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QString QMultiComboBox::currentText()
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{
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return vlist_.currentItem()->text();
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}
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QString QMultiComboBox::itemText(int row)
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{
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return vlist_.item(row)->text();
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}
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QVariant QMultiComboBox::itemData(int row)
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{
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QListWidgetItem* item = vlist_.item(row);
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if (item->checkState() == Qt::Checked) return QVariant(true);
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return QVariant(false);
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}
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void QMultiComboBox::scanItemSelect(QListWidgetItem* item)
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{
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QList<QListWidgetItem*> list = vlist_.selectedItems();
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for (int i = 0; i < list.count(); i++)
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{
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if (item->checkState() == Qt::Checked)
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{
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list[i]->setCheckState(Qt::Checked);
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}
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else
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{
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list[i]->setCheckState(Qt::Unchecked);
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}
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list[i]->setSelected(false);
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}
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emit itemChanged();
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}
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void QMultiComboBox::initStyleOption(QStyleOptionComboBox *option) const
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{
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//Initializes the state, direction, rect, palette, and fontMetrics member variables based on the specified widget.
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//This is a convenience function; the member variables can also be initialized manually.
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option->initFrom(this);
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}
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@ -1,89 +0,0 @@
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/****************************************************************************
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**
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** Copyright (C) 2010 Richard Steffen and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: rsteffen@messbild.de, rsteffen@uni-bonn.de
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**
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** Observe the License Information
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**
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****************************************************************************/
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#ifndef __MULTIBOXCOMBO_H__
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#define __MULTIBOXCOMBO_H__
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#include <iostream>
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using namespace std;
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#include <QComboBox>
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#include <QListWidget>
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#include <QVBoxLayout>
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#include <QStylePainter>
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class QMultiComboBox: public QComboBox
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{
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Q_OBJECT
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public:
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/// Constructor
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QMultiComboBox(QWidget *widget = 0);
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virtual ~QMultiComboBox();
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/// the main display text
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void SetDisplayText(QString text);
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/// get the main display text
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QString GetDisplayText() const;
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/// add a item to the list
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void addItem(const QString& text, const QVariant& userData = QVariant());
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/// custom paint
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virtual void paintEvent(QPaintEvent *e);
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/// set the height of the popup
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void setPopupHeight(int h);
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/// replace standard QComboBox Popup
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void showPopup();
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void hidePopup();
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/// replace neccessary data access
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int count();
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void setCurrentIndex(int index);
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QString currentText();
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QString itemText(int row);
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QVariant itemData(int row);
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signals:
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/// item changed
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void itemChanged();
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public slots:
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/// react on changes of the item checkbox
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void scanItemSelect(QListWidgetItem* item);
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/// the init style
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void initStyleOption(QStyleOptionComboBox *option) const;
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protected:
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/// the height of the popup
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int popheight_;
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/// lower/upper screen bound
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int screenbound_;
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/// hold the main display text
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QString m_DisplayText_;
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/// popup frame
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QFrame popframe_;
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/// multi selection list in the popup frame
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QListWidget vlist_;
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};
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#endif
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