src/kitemviews/private/kitemlistroleeditor.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  18  ***************************************************************************/
  19
  20 #include "kitemlistroleeditor.h"
  21
  22 #include <KDebug>
  23 #include <QKeyEvent>
  24
  25 KItemListRoleEditor::KItemListRoleEditor(QWidget *parent) :
  26     KTextEdit(parent),
  27     m_index(0),
  28     m_role()
  29 {
  30     setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  31     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  32     setAcceptRichText(false);
  33     document()->setDocumentMargin(0);
  34
  35     if (parent) {
  36         parent->installEventFilter(this);
  37     }
  38
  39     connect(this, SIGNAL(textChanged()), this, SLOT(autoAdjustSize()));
  40 }
  41
  42 KItemListRoleEditor::~KItemListRoleEditor()
  43 {
  44 }
  45
  46 void KItemListRoleEditor::setIndex(int index)
  47 {
  48     m_index = index;
  49 }
  50
  51 int KItemListRoleEditor::index() const
  52 {
  53     return m_index;
  54 }
  55
  56 void KItemListRoleEditor::setRole(const QByteArray& role)
  57 {
  58     m_role = role;
  59 }
  60
  61 QByteArray KItemListRoleEditor::role() const
  62 {
  63     return m_role;
  64 }
  65
  66 bool KItemListRoleEditor::eventFilter(QObject* watched, QEvent* event)
  67 {
  68     if (watched == parentWidget() && event->type() == QEvent::Resize) {
  69         emit roleEditingFinished(m_index, m_role, toPlainText());
  70     }
  71
  72     return KTextEdit::eventFilter(watched, event);
  73 }
  74
  75 bool KItemListRoleEditor::event(QEvent* event)
  76 {
  77     if (event->type() == QEvent::FocusOut) {
  78         QFocusEvent* focusEvent = static_cast<QFocusEvent*>(event);
  79         if (focusEvent->reason() != Qt::PopupFocusReason) {
  80             emit roleEditingFinished(m_index, m_role, toPlainText());
  81         }
  82     }
  83     return KTextEdit::event(event);
  84 }
  85
  86 void KItemListRoleEditor::keyPressEvent(QKeyEvent* event)
  87 {
  88     switch (event->key()) {
  89     case Qt::Key_Escape:
  90         emit roleEditingCanceled(m_index, m_role, toPlainText());
  91         event->accept();
  92         return;
  93     case Qt::Key_Enter:
  94     case Qt::Key_Return:
  95         emit roleEditingFinished(m_index, m_role, toPlainText());
  96         event->accept();
  97         return;
  98     default:
  99         break;
 100     }
 101
 102     KTextEdit::keyPressEvent(event);
 103 }
 104
 105 void KItemListRoleEditor::autoAdjustSize()
 106 {
 107     const qreal frameBorder = 2 * frameWidth();
 108
 109     const qreal requiredWidth = document()->size().width();
 110     const qreal availableWidth = size().width() - frameBorder;
 111     if (requiredWidth > availableWidth) {
 112         qreal newWidth = requiredWidth + frameBorder;
 113         if (parentWidget() && pos().x() + newWidth > parentWidget()->width()) {
 114             newWidth = parentWidget()->width() - pos().x();
 115         }
 116         resize(newWidth, size().height());
 117     }
 118
 119     const qreal requiredHeight = document()->size().height();
 120     const qreal availableHeight = size().height() - frameBorder;
 121     if (requiredHeight > availableHeight) {
 122         qreal newHeight = requiredHeight + frameBorder;
 123         if (parentWidget() && pos().y() + newHeight > parentWidget()->height()) {
 124             newHeight = parentWidget()->height() - pos().y();
 125         }
 126         resize(size().width(), newHeight);
 127     }
 128 }
 129
 130 #include "kitemlistroleeditor.moc"