From: Marcus Eggenberger <egs@quassel-irc.org>
Date: Fri, 25 Jul 2008 15:17:47 +0000 (+0200)
Subject: styling the column handle for the chatview. it has now only shown on hover and a... 
X-Git-Tag: 0.3.0~157
X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=commitdiff_plain;h=9806418efa4c59dae71fd628ea9c57453ca81434

styling the column handle for the chatview. it has now only shown on hover and a smooth gradient
---

diff --git a/src/qtui/CMakeLists.txt b/src/qtui/CMakeLists.txt
index 81e7c27e..2951cf69 100644
--- a/src/qtui/CMakeLists.txt
+++ b/src/qtui/CMakeLists.txt
@@ -41,6 +41,7 @@ set(MOC_HDRS
     chatlinemodel.h
     chatscene.h
     chatview.h
+    columnhandleitem.h
     coreconfigwizard.h
     coreconnectdlg.h
     coreinfodlg.h
@@ -61,7 +62,6 @@ set(HEADERS
     chatitem.h
     chatline.h
     chatlinemodelitem.h
-    columnhandleitem.h
     qtuisettings.h
     qtuistyle.h)
 
diff --git a/src/qtui/columnhandleitem.cpp b/src/qtui/columnhandleitem.cpp
index 3b84f578..8ab7331b 100644
--- a/src/qtui/columnhandleitem.cpp
+++ b/src/qtui/columnhandleitem.cpp
@@ -20,17 +20,25 @@
 
 #include <QCursor>
 #include <QGraphicsScene>
+#include <QGraphicsSceneHoverEvent>
 #include <QPainter>
 
 #include <QDebug>
 
 #include "columnhandleitem.h"
 
-ColumnHandleItem::ColumnHandleItem(qreal w, QGraphicsItem *parent) : QGraphicsItem(parent) {
-  _width = w;
+ColumnHandleItem::ColumnHandleItem(qreal w, QGraphicsItem *parent)
+  : QGraphicsItem(parent),
+    _width(w),
+    _hover(0),
+    _timeLine(150)
+{
+  setAcceptsHoverEvents(true);
   setZValue(10);
   setCursor(QCursor(Qt::OpenHandCursor));
   setFlag(ItemIsMovable);
+
+  connect(&_timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(hoverChanged(qreal)));
 }
 
 void ColumnHandleItem::setXPos(qreal xpos) {
@@ -43,7 +51,6 @@ void ColumnHandleItem::sceneRectChanged(const QRectF &rect) {
 }
 
 void ColumnHandleItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
-
   QGraphicsItem::mouseMoveEvent(event);
 }
 
@@ -61,7 +68,31 @@ void ColumnHandleItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *
   Q_UNUSED(option);
   Q_UNUSED(widget);
 
-  painter->drawRect(boundingRect());
+  QLinearGradient gradient(0, 0, width(), 0);
+  gradient.setColorAt(0.25, Qt::transparent);
+  gradient.setColorAt(0.5, QColor(0, 0, 0, _hover * 200));
+  gradient.setColorAt(0.75, Qt::transparent);
+  painter->fillRect(boundingRect(), gradient);
+}
 
+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();
+}
+
diff --git a/src/qtui/columnhandleitem.h b/src/qtui/columnhandleitem.h
index 3bfe5bac..dc125120 100644
--- a/src/qtui/columnhandleitem.h
+++ b/src/qtui/columnhandleitem.h
@@ -21,34 +21,39 @@
 #ifndef COLUMNHANDLEITEM_H_
 #define COLUMNHANDLEITEM_H_
 
+#include <QObject>
 #include <QGraphicsItem>
-
-class ColumnHandleItem : public QGraphicsItem {
-
-  public:
-    ColumnHandleItem(qreal width, QGraphicsItem *parent = 0);
-
-    inline qreal width() const;
-    inline QRectF boundingRect() const;
-    void setXPos(qreal xpos);
-
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
-    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
-    void mousePressEvent(QGraphicsSceneMouseEvent *event);
-    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
-
-    void sceneRectChanged(const QRectF &);
-
-  private:
-    qreal _width;
+#include <QGraphicsScene>
+#include <QTimeLine>
+
+class ColumnHandleItem : public QObject, public QGraphicsItem {
+  Q_OBJECT
+
+public:
+  ColumnHandleItem(qreal width, QGraphicsItem *parent = 0);
+  
+  inline qreal width() const { return _width; }
+  inline QRectF boundingRect() const { return QRectF(0, 0, _width, scene()->height()); }
+  void setXPos(qreal xpos);
+  
+  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+  void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
+  void mousePressEvent(QGraphicsSceneMouseEvent *event);
+  void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
+  
+  void sceneRectChanged(const QRectF &);
+
+protected:
+  void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+  void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+
+private slots:
+  void hoverChanged(qreal value);
+
+private:
+  qreal _width;
+  qreal _hover;
+  QTimeLine _timeLine;
 };
 
-qreal ColumnHandleItem::width() const {
-  return _width;
-}
-
-QRectF ColumnHandleItem::boundingRect() const {
-  return QRectF(0, 0, _width, scene()->height());
-}
-
 #endif