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     document()->setDocumentMargin(0);
  33
  34     if (parent) {
  35         parent->installEventFilter(this);
  36     }
  37 }
  38
  39 KItemListRoleEditor::~KItemListRoleEditor()
  40 {
  41 }
  42
  43 void KItemListRoleEditor::setIndex(int index)
  44 {
  45     m_index = index;
  46 }
  47
  48 int KItemListRoleEditor::index() const
  49 {
  50     return m_index;
  51 }
  52
  53 void KItemListRoleEditor::setRole(const QByteArray& role)
  54 {
  55     m_role = role;
  56 }
  57
  58 QByteArray KItemListRoleEditor::role() const
  59 {
  60     return m_role;
  61 }
  62
  63 bool  KItemListRoleEditor::eventFilter(QObject* watched, QEvent* event)
  64 {
  65     if (watched == parentWidget() && event->type() == QEvent::Resize) {
  66         autoAdjustSize();
  67     }
  68
  69     return KTextEdit::eventFilter(watched, event);
  70 }
  71
  72 bool KItemListRoleEditor::event(QEvent* event)
  73 {
  74     if (event->type() == QEvent::FocusOut) {
  75         emit roleEditingFinished(m_index, m_role, toPlainText());
  76     }
  77     return KTextEdit::event(event);
  78 }
  79
  80 void KItemListRoleEditor::keyPressEvent(QKeyEvent* event)
  81 {
  82     switch (event->key()) {
  83     case Qt::Key_Escape:
  84         emit roleEditingCanceled(m_index, m_role, toPlainText());
  85         event->accept();
  86         return;
  87     case Qt::Key_Enter:
  88     case Qt::Key_Return:
  89         emit roleEditingFinished(m_index, m_role, toPlainText());
  90         event->accept();
  91         return;
  92     default:
  93         break;
  94     }
  95
  96     KTextEdit::keyPressEvent(event);
  97     autoAdjustSize();
  98 }
  99
 100 void KItemListRoleEditor::autoAdjustSize()
 101 {
 102     const qreal requiredWidth = document()->size().width();
 103     const qreal availableWidth = size().width() - 2 * frameWidth();
 104     if (requiredWidth > availableWidth) {
 105         qreal newWidth = requiredWidth + 2 * frameWidth();
 106         if (parentWidget() && pos().x() + newWidth > parentWidget()->width()) {
 107             newWidth = parentWidget()->width() - pos().x();
 108         }
 109         resize(newWidth, size().height());
 110     }
 111 }
 112
 113 #include "kitemlistroleeditor.moc"