src/tabwidget.cpp

   1 /*
   2   Copyright 2013-2015 Mats Sjöberg
   3
   4   This file is part of the Pumpa programme.
   5
   6   Pumpa is free software: you can redistribute it and/or modify it
   7   under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   Pumpa is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14   License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with Pumpa.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "tabwidget.h"
  21
  22 #include <QDebug>
  23
  24 //------------------------------------------------------------------------------
  25
  26 TabWidget::TabWidget(QWidget* parent) : QTabWidget(parent) {
  27   m_sMap = new QSignalMapper(this);
  28   connect(m_sMap, SIGNAL(mapped(int)), this, SLOT(highlightTab(int)));
  29   setTabsClosable(true);
  30
  31   connect(tabBar(), SIGNAL(tabCloseRequested(int)),
  32           this, SLOT(closeTab(int)));
  33 }
  34
  35 //------------------------------------------------------------------------------
  36
  37 int TabWidget::addTab(QWidget* page, const QString& label,
  38                       bool highlight, bool closable) {
  39   int index = QTabWidget::addTab(page, label);
  40
  41   if (highlight)
  42     addHighlightConnection(page, index);
  43
  44   if (!closable) {
  45     tabBar()->setTabButton(index, QTabBar::LeftSide, 0);
  46     tabBar()->setTabButton(index, QTabBar::RightSide, 0);
  47   } else {
  48     m_okToClose.insert(index);
  49   }
  50
  51   return index;
  52 }
  53
  54 //------------------------------------------------------------------------------
  55
  56 QWidget* TabWidget::closeCurrentTab() {
  57   QWidget* w = currentWidget();
  58   closeTab(currentIndex());
  59   return w;
  60 }
  61
  62 //------------------------------------------------------------------------------
  63
  64 void TabWidget::closeTab(int index) {
  65   if (!closable(index)) {
  66     qDebug() << "[ERROR] Tried to close unclosable tab" << index;
  67     return;
  68   }
  69
  70   removeTab(index);
  71 }
  72
  73 //------------------------------------------------------------------------------
  74
  75 void TabWidget::highlightTab(int index) {
  76   if (index == -1)
  77     index = currentIndex();
  78   tabBar()->setTabTextColor(index, Qt::red);
  79 }
  80
  81 //------------------------------------------------------------------------------
  82
  83 void TabWidget::deHighlightTab(int index) {
  84   if (index == -1)
  85     index = currentIndex();
  86   QPalette pal;
  87   tabBar()->setTabTextColor(index, pal.color(foregroundRole()));
  88 }
  89
  90 //------------------------------------------------------------------------------
  91
  92 void TabWidget::addHighlightConnection(QWidget* page, int index) {
  93   m_sMap->setMapping(page, index);
  94   connect(page, SIGNAL(highlightMe()), m_sMap, SLOT(map()));
  95 }
  96
  97 //------------------------------------------------------------------------------
  98
  99 void TabWidget::keyPressEvent(QKeyEvent* event) {
 100   int keyn = event->key() - Qt::Key_0;
 101   if ((event->modifiers() & Qt::AltModifier) && // alt
 102       (keyn >= 1 && keyn <= 9 && keyn <= count())) { // + 0 .. 9
 103     setCurrentIndex(keyn-1);
 104   } else {
 105     QTabWidget::keyPressEvent(event);
 106   }
 107 }