Moving QuasselTopia to dev-notes/obsolete, since it confuses users...

[quassel.git] / dev-notes / obsolete / qtopia / topicbar.cpp

diff --git a/dev-notes/obsolete/qtopia/topicbar.cpp b/dev-notes/obsolete/qtopia/topicbar.cpp
new file mode 100644 (file)
index 0000000..724817f
--- /dev/null
+++ b/dev-notes/obsolete/qtopia/topicbar.cpp
@@ -0,0 +1,129 @@
+/***************************************************************************
+ *   Copyright (C) 2005-08 by the Quassel Project                          *
+ *   devel@quassel-irc.org                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) version 3.                                           *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QtGui>
+
+#include "topicbar.h"
+#include "client.h"
+
+
+TopicBar::TopicBar(QWidget *parent) : QPushButton(parent) {
+  setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
+
+  // Define the font and calculate the metrics for it
+  topicFont = font();
+  topicFont.setPointSize(5);
+
+  // frameWidth = style()->pixelMetric(QStyle::PM_ButtonMargin); // Nice idea, but Qtopia's buttons are just too large...
+  frameWidth = 3; // so we hardcode a more reasonable framewidth than 7
+  setFixedHeight(QFontMetrics(topicFont).height() + 2*frameWidth);
+
+  textWidth = 0;
+  fillText = " *** ";
+  oneshot = true;
+  timer = new QTimer(this);
+  timer->setInterval(25);
+  connect(timer, SIGNAL(timeout()), this, SLOT(updateOffset()));
+  connect(this, SIGNAL(clicked()), this, SLOT(startScrolling()));
+
+  _model = Client::bufferModel();
+  connect(_model, SIGNAL(dataChanged(QModelIndex, QModelIndex)),
+          this, SLOT(dataChanged(QModelIndex, QModelIndex)));
+
+  _selectionModel = Client::bufferModel()->standardSelectionModel();
+  connect(_selectionModel, SIGNAL(currentChanged(QModelIndex, QModelIndex)),
+          this, SLOT(currentChanged(QModelIndex, QModelIndex)));
+}
+
+TopicBar::~TopicBar() {
+
+
+}
+
+void TopicBar::currentChanged(const QModelIndex &current, const QModelIndex &previous) {
+  Q_UNUSED(previous);
+  setContents(current.sibling(current.row(), 1).data().toString());
+}
+
+void TopicBar::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight) {
+  QItemSelectionRange changedArea(topLeft, bottomRight);
+  QModelIndex currentTopicIndex = _selectionModel->currentIndex().sibling(_selectionModel->currentIndex().row(), 1);
+  if(changedArea.contains(currentTopicIndex))
+    setContents(currentTopicIndex.data().toString());
+};
+
+void TopicBar::resizeEvent(QResizeEvent *event) {
+  QPushButton::resizeEvent(event);
+  calcTextMetrics();
+}
+
+void TopicBar::calcTextMetrics() {
+  int w = width() - 2*frameWidth;
+  QRect boundingRect = QFontMetrics(topicFont).boundingRect(text);
+  textWidth = boundingRect.width();
+  if(textWidth <= w) {
+    offset = 0; fillTextStart = -1; secondTextStart = -1;
+    displayText = text;
+    timer->stop();
+  } else {
+    fillTextStart = textWidth;
+    boundingRect = QFontMetrics(topicFont).boundingRect(fillText);
+    secondTextStart = fillTextStart + boundingRect.width();
+    displayText = QString("%1%2%1").arg(text).arg(fillText);
+    offset = 0;
+    //timer->start();  // uncomment this to get autoscroll rather than on-demand
+  }
+}
+
+// TODO catch resizeEvent for scroll settings
+void TopicBar::setContents(QString t, bool _oneshot) {
+  text = t; oneshot = _oneshot;
+  calcTextMetrics();
+}
+
+void TopicBar::paintEvent(QPaintEvent *event) {
+  QPushButton::paintEvent(event);
+
+  QPainter painter(this);
+  painter.setFont(topicFont);
+  painter.setClipRect(frameWidth, frameWidth, rect().width() - 2*frameWidth, rect().height() - 2*frameWidth);
+  painter.drawText(QPoint(-offset + frameWidth, QFontMetrics(topicFont).ascent() + frameWidth), displayText);
+
+}
+
+void TopicBar::updateOffset() {
+  offset+=1;
+  if(offset >= secondTextStart) {
+    offset = 0;
+    if(oneshot) timer->stop(); // only scroll once!
+  }
+  update();
+}
+
+void TopicBar::startScrolling() {
+  if(displayText.length() > text.length()) {
+    //oneshot = false;
+    timer->start();
+  }
+}
+
+void TopicBar::stopScrolling() {
+  oneshot = true;
+}