+/***************************************************************************
+ * Copyright (C) 2005-07 by The Quassel IRC Development Team *
+ * 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) any later version. *
+ * *
+ * 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 "topicbar.h"
+
+#include <QtGui>
+
+
+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);
+
+ fillText = " *** ";
+ oneshot = true;
+ timer = new QTimer(this);
+ timer->setInterval(20);
+ connect(timer, SIGNAL(timeout()), this, SLOT(updateOffset()));
+}
+
+TopicBar::~TopicBar() {
+
+
+}
+
+void TopicBar::setContents(QString t, bool _oneshot) {
+ text = t; oneshot = _oneshot;
+ int w = width() - 2*frameWidth;
+ QRect boundingRect = QFontMetrics(topicFont).boundingRect(text);
+ if(boundingRect.width() <= w) {
+ offset = 0; fillTextStart = -1; secondTextStart = -1;
+ timer->stop();
+ } else {
+ fillTextStart = boundingRect.width();
+ boundingRect = QFontMetrics(topicFont).boundingRect(fillText);
+ secondTextStart = fillTextStart + boundingRect.width();
+ text = QString("%1%2%1").arg(text).arg(fillText);
+ offset = 0;
+ timer->start();
+ }
+}
+
+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), text);
+
+}
+
+void TopicBar::updateOffset() {
+ offset++;
+ if(offset >= secondTextStart) {
+ offset = 0;
+ if(oneshot) timer->stop(); // only scroll once!
+ }
+ update();
+}
projects / quassel.git / commitdiff