X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fcolumnhandleitem.cpp;h=f79019c468961a174e4f779d854948f681e2c801;hp=16cec89dbf1ce34b292d686ee59ff02df05b21d8;hb=8e9f08aa0f4e663473b634511b1bcc40145e9ba9;hpb=39e2a78383295f86c5aa2dadbeac6f02b53eb7a4

diff --git a/src/qtui/columnhandleitem.cpp b/src/qtui/columnhandleitem.cpp
index 16cec89d..f79019c4 100644
--- a/src/qtui/columnhandleitem.cpp
+++ b/src/qtui/columnhandleitem.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
-*   Copyright (C) 2005-08 by the Quassel IRC Team                         *
+*   Copyright (C) 2005-09 by the Quassel Project                          *
 *   devel@quassel-irc.org                                                 *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
@@ -18,30 +18,126 @@
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
 
+#include "columnhandleitem.h"
+
+#include <QApplication>
+#include <QCursor>
 #include <QGraphicsScene>
+#include <QGraphicsSceneHoverEvent>
 #include <QPainter>
+#include <QPalette>
 
-#include "columnhandleitem.h"
+#include <QDebug>
 
-ColumnHandleItem::ColumnHandleItem(qreal w, QGraphicsItem *parent) : QGraphicsItem(parent) {
-  _width = w;
+ColumnHandleItem::ColumnHandleItem(qreal w, QGraphicsItem *parent)
+  : QGraphicsItem(parent),
+    _width(w),
+    _boundingRect(-_width/2, 0, _width, 0),
+    _hover(0),
+    _moving(false),
+    _minXPos(0),
+    _maxXPos(0),
+    _timeLine(350),
+    _rulerColor(QApplication::palette().windowText().color())
+{
+  _timeLine.setUpdateInterval(20);
 
+  setAcceptsHoverEvents(true);
+  setZValue(10);
+  setCursor(QCursor(Qt::OpenHandCursor));
+
+  connect(&_timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(hoverChanged(qreal)));
 }
 
 void ColumnHandleItem::setXPos(qreal xpos) {
-  setPos(xpos - width()/2, (qreal)0);
+  setPos(xpos, 0);
+  QRectF sceneBRect = _boundingRect.translated(x(), 0);
+  _sceneLeft = sceneBRect.left();
+  _sceneRight = sceneBRect.right();
+}
+
+void ColumnHandleItem::setXLimits(qreal min, qreal max) {
+  _minXPos = min;
+  _maxXPos = max;
+  //if(x() < min) setPos(min, 0);
+  //else if(x() > max) setPos(max - width(), 0);
 }
 
 void ColumnHandleItem::sceneRectChanged(const QRectF &rect) {
-  if(rect.height() != boundingRect().height())
-    prepareGeometryChange();
+  prepareGeometryChange();
+  _boundingRect = QRectF(-_width/2, rect.y(), _width, rect.height());
+}
+
+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);
+    }
+    event->accept();
+  } else {
+    event->ignore();
+  }
+}
+
+void ColumnHandleItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+  if(event->buttons() & Qt::LeftButton) {
+    setCursor(QCursor(Qt::ClosedHandCursor));
+    _moving = true;
+    event->accept();
+  } else {
+    event->ignore();
+  }
+}
+
+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());
+    event->accept();
+  } else {
+    event->ignore();
+  }
+}
+
+void ColumnHandleItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event) {
+  Q_UNUSED(event);
+
+  _timeLine.setDirection(QTimeLine::Forward);
+  if(_timeLine.state() != QTimeLine::Running)
+    _timeLine.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();
 }
 
 void ColumnHandleItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
   Q_UNUSED(option);
   Q_UNUSED(widget);
 
-  painter->drawRect(boundingRect());
-
-
+  QLinearGradient gradient(boundingRect().topLeft(), boundingRect().topRight());
+  QColor _rulerColor = QApplication::palette().windowText().color();
+  _rulerColor.setAlphaF(_hover);
+  gradient.setColorAt(0, Qt::transparent);
+  gradient.setColorAt(0.4, _rulerColor);
+  gradient.setColorAt(0.6, _rulerColor);
+  gradient.setColorAt(1, Qt::transparent);
+  painter->fillRect(boundingRect(), gradient);
 }
+