Fix and Qt-4.6-ify ColumnHandleItem
[quassel.git] / src / qtui / columnhandleitem.cpp
index bfe6ee5..3db4053 100644 (file)
@@ -1,49 +1,55 @@
 /***************************************************************************
-*   Copyright (C) 2005-08 by the Quassel IRC 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) 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.             *
-***************************************************************************/
-
+ *   Copyright (C) 2005-2010 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 "chatview.h"
 #include "columnhandleitem.h"
 
 #include <QApplication>
 #include <QCursor>
-#include <QGraphicsScene>
 #include <QGraphicsSceneHoverEvent>
 #include <QPainter>
 #include <QPalette>
 
-#include <QDebug>
-
 ColumnHandleItem::ColumnHandleItem(qreal w, QGraphicsItem *parent)
-  : QGraphicsItem(parent),
+  : QGraphicsObject(parent),
     _width(w),
     _boundingRect(-_width/2, 0, _width, 0),
-    _hover(0),
     _moving(false),
+    _offset(0),
     _minXPos(0),
     _maxXPos(0),
-    _timeLine(150)
+    _opacity(0),
+    _animation(new QPropertyAnimation(this, "opacity", this))
 {
+
   setAcceptsHoverEvents(true);
   setZValue(10);
   setCursor(QCursor(Qt::OpenHandCursor));
 
-  connect(&_timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(hoverChanged(qreal)));
+  _animation->setStartValue(0);
+  _animation->setEndValue(1);
+  _animation->setDirection(QPropertyAnimation::Forward);
+  _animation->setDuration(350);
+  _animation->setEasingCurve(QEasingCurve::InOutSine);
+
+  //connect(&_timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(hoverChanged(qreal)));
 }
 
 void ColumnHandleItem::setXPos(qreal xpos) {
@@ -65,14 +71,19 @@ void ColumnHandleItem::sceneRectChanged(const QRectF &rect) {
   _boundingRect = QRectF(-_width/2, rect.y(), _width, rect.height());
 }
 
+void ColumnHandleItem::setOpacity(qreal opacity) {
+  _opacity = opacity;
+  update();
+}
+
 void ColumnHandleItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
   if(event->buttons() & Qt::LeftButton && _moving) {
-    if(contains(event->lastPos())) {
-      qreal newx = x() + (event->scenePos() - event->lastScenePos()).x();
-      if(newx < _minXPos) newx = _minXPos;
-      else if(newx + width() > _maxXPos) newx = _maxXPos - width();
-      setPos(newx, 0);
-    }
+    qreal newx = event->scenePos().x() - _offset;
+    if(newx < _minXPos)
+      newx = _minXPos;
+    else if(newx + width() > _maxXPos)
+      newx = _maxXPos - width();
+    setPos(newx, 0);
     event->accept();
   } else {
     event->ignore();
@@ -81,8 +92,9 @@ void ColumnHandleItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
 
 void ColumnHandleItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
   if(event->buttons() & Qt::LeftButton) {
-    setCursor(QCursor(Qt::ClosedHandCursor));
+    QApplication::setOverrideCursor(Qt::ClosedHandCursor);
     _moving = true;
+    _offset = event->pos().x();
     event->accept();
   } else {
     event->ignore();
@@ -92,11 +104,11 @@ void ColumnHandleItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
 void ColumnHandleItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
   if(_moving) {
     _moving = false;
-    setCursor(QCursor(Qt::OpenHandCursor));
     QRectF sceneBRect = _boundingRect.translated(x(), 0);
     _sceneLeft = sceneBRect.left();
     _sceneRight = sceneBRect.right();
     emit positionChanged(x());
+    QApplication::restoreOverrideCursor();
     event->accept();
   } else {
     event->ignore();
@@ -106,22 +118,15 @@ void ColumnHandleItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
 void ColumnHandleItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event) {
   Q_UNUSED(event);
 
-  _timeLine.setDirection(QTimeLine::Forward);
-  if(_timeLine.state() != QTimeLine::Running)
-    _timeLine.start();
+  _animation->setDirection(QPropertyAnimation::Forward);
+  _animation->start();
 }
 
 void ColumnHandleItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
   Q_UNUSED(event);
 
-  _timeLine.setDirection(QTimeLine::Backward);
-  if(_timeLine.state() != QTimeLine::Running)
-    _timeLine.start();
-}
-
-void ColumnHandleItem::hoverChanged(qreal value) {
-  _hover = value;
-  update();
+  _animation->setDirection(QPropertyAnimation::Backward);
+  _animation->start();
 }
 
 void ColumnHandleItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
@@ -129,12 +134,11 @@ void ColumnHandleItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *
   Q_UNUSED(widget);
 
   QLinearGradient gradient(boundingRect().topLeft(), boundingRect().topRight());
-  QColor rulerColor = QApplication::palette().windowText().color();
-  rulerColor.setAlphaF(_hover);
+  QColor color = QApplication::palette().windowText().color();
+  color.setAlphaF(_opacity);
   gradient.setColorAt(0, Qt::transparent);
-  gradient.setColorAt(0.4, rulerColor);
-  gradient.setColorAt(0.6, rulerColor);
+  gradient.setColorAt(0.45, color);
+  gradient.setColorAt(0.55, color);
   gradient.setColorAt(1, Qt::transparent);
   painter->fillRect(boundingRect(), gradient);
 }
-