src/qtui/chatview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-08 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
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   8  *   (at your option) version 3.                                           *
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  10  *   This program is distributed in the hope that it will be useful,       *
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  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
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  20
  21 #include <QGraphicsTextItem>
  22 #include <QScrollBar>
  23
  24 #include "buffer.h"
  25 #include "chatlinemodelitem.h"
  26 #include "chatscene.h"
  27 #include "chatview.h"
  28 #include "client.h"
  29 #include "messagefilter.h"
  30 #include "quasselui.h"
  31
  32 ChatView::ChatView(Buffer *buf, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
  33   QList<BufferId> filterList;
  34   filterList.append(buf->bufferInfo().bufferId());
  35   MessageFilter *filter = new MessageFilter(Client::messageModel(), filterList, this);
  36   init(filter);
  37
  38 }
  39
  40 ChatView::ChatView(MessageFilter *filter, QWidget *parent) : QGraphicsView(parent), AbstractChatView() {
  41   init(filter);
  42 }
  43
  44 void ChatView::init(MessageFilter *filter) {
  45   setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  46   setAlignment(Qt::AlignBottom);
  47   setInteractive(true);
  48
  49   _scene = new ChatScene(filter, filter->idString(), this);
  50   connect(_scene, SIGNAL(heightChanged(qreal)), this, SLOT(sceneHeightChanged(qreal)));
  51   setScene(_scene);
  52 }
  53
  54 ChatView::~ChatView() {
  55
  56 }
  57
  58
  59 ChatScene *ChatView::scene() const {
  60   return _scene;
  61 }
  62
  63 void ChatView::resizeEvent(QResizeEvent *event) {
  64   scene()->setWidth(event->size().width() - 2);  // FIXME figure out why we have to hardcode the -2 here
  65   verticalScrollBar()->setValue(verticalScrollBar()->maximum());
  66 }
  67
  68 void ChatView::sceneHeightChanged(qreal h) {
  69   Q_UNUSED(h)
  70   bool scrollable = qAbs(verticalScrollBar()->value() - verticalScrollBar()->maximum()) <= 2; // be a bit tolerant here, also FIXME (why we need this?)
  71   setSceneRect(scene()->sceneRect());
  72   if(scrollable) verticalScrollBar()->setValue(verticalScrollBar()->maximum());
  73 }
  74
  75 void ChatView::clear()
  76 {
  77 }