From 5b0af9082dcf0672a98391ac12c6e6bbaaff7a64 Mon Sep 17 00:00:00 2001
From: Manuel Nickschas <sputnick@quassel-irc.org>
Date: Sat, 26 Jul 2008 00:35:07 +0200
Subject: [PATCH] Columns are now moveable!

---
 src/qtui/chatitem.cpp         |  2 --
 src/qtui/chatscene.cpp        | 19 +++++++++++
 src/qtui/chatscene.h          |  1 +
 src/qtui/columnhandleitem.cpp |  1 +
 src/qtui/columnhandleitem.h   | 59 ++++++++++++++++++-----------------
 5 files changed, 52 insertions(+), 30 deletions(-)

diff --git a/src/qtui/chatitem.cpp b/src/qtui/chatitem.cpp
index 487c2f2f..235868d0 100644
--- a/src/qtui/chatitem.cpp
+++ b/src/qtui/chatitem.cpp
@@ -135,8 +135,6 @@ void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
   Q_UNUSED(option); Q_UNUSED(widget);
   if(!haveLayout()) updateLayout();
   _layout->draw(painter, QPointF(0,0), QVector<QTextLayout::FormatRange>(), boundingRect());
-  //painter->drawRect(boundingRect());
-
 }
 
 /*
diff --git a/src/qtui/chatscene.cpp b/src/qtui/chatscene.cpp
index 6eb07a97..581377d0 100644
--- a/src/qtui/chatscene.cpp
+++ b/src/qtui/chatscene.cpp
@@ -47,6 +47,9 @@ ChatScene::ChatScene(QAbstractItemModel *model, QObject *parent) : QGraphicsScen
   firstColHandle = new ColumnHandleItem(QtUi::style()->firstColumnSeparator()); addItem(firstColHandle);
   secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator()); addItem(secondColHandle);
 
+  connect(firstColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+  connect(secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(handlePositionChanged(qreal)));
+
   firstColHandle->setXPos(firstColHandlePos);
   firstColHandle->setXLimits(0, secondColHandlePos);
   secondColHandle->setXPos(secondColHandlePos);
@@ -103,3 +106,19 @@ void ChatScene::rectChanged(const QRectF &rect) {
   firstColHandle->sceneRectChanged(rect);
   secondColHandle->sceneRectChanged(rect);
 }
+
+void ChatScene::handlePositionChanged(qreal xpos) {
+  bool first = (sender() == firstColHandle);
+  qreal oldx;
+  if(first) {
+    oldx = firstColHandlePos;
+    firstColHandlePos = xpos;
+  } else {
+    oldx = secondColHandlePos;
+    secondColHandlePos = xpos;
+  }
+  setWidth(width());  // readjust all chatlines
+  // we get ugly redraw errors if we don't update this explicitly... :(
+  // width() should be the same for both handles, so just use firstColHandle regardless
+  update(qMin(oldx, xpos) - firstColHandle->width()/2, 0, qMax(oldx, xpos) + firstColHandle->width()/2, height());
+}
diff --git a/src/qtui/chatscene.h b/src/qtui/chatscene.h
index 9d8a5651..a1a32d10 100644
--- a/src/qtui/chatscene.h
+++ b/src/qtui/chatscene.h
@@ -47,6 +47,7 @@ class ChatScene : public QGraphicsScene {
 
   private slots:
     void rectChanged(const QRectF &);
+    void handlePositionChanged(qreal xpos);
 
   signals:
     void heightChanged(qreal height);
diff --git a/src/qtui/columnhandleitem.cpp b/src/qtui/columnhandleitem.cpp
index e8dd97e2..36311688 100644
--- a/src/qtui/columnhandleitem.cpp
+++ b/src/qtui/columnhandleitem.cpp
@@ -87,6 +87,7 @@ void ColumnHandleItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
   if(_moving) {
     _moving = false;
     setCursor(QCursor(Qt::OpenHandCursor));
+    emit positionChanged(x() + width()/2);
     event->accept();
   } else {
     event->ignore();
diff --git a/src/qtui/columnhandleitem.h b/src/qtui/columnhandleitem.h
index f9d1f7ad..1ed4c46d 100644
--- a/src/qtui/columnhandleitem.h
+++ b/src/qtui/columnhandleitem.h
@@ -29,34 +29,37 @@
 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 sceneRectChanged(const QRectF &);
-  void setXLimits(qreal min, qreal max);
-
-protected:
-  void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
-  void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
-  void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
-  void mousePressEvent(QGraphicsSceneMouseEvent *event);
-  void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
-
-private slots:
-  void hoverChanged(qreal value);
-
-private:
-  qreal _width;
-  qreal _hover;
-  bool _moving;
-  qreal _minXPos, _maxXPos;
-  QTimeLine _timeLine;
+  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 sceneRectChanged(const QRectF &);
+    void setXLimits(qreal min, qreal max);
+
+  protected:
+    void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
+    void mousePressEvent(QGraphicsSceneMouseEvent *event);
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
+
+  signals:
+    void positionChanged(qreal x);
+
+  private slots:
+    void hoverChanged(qreal value);
+
+  private:
+    qreal _width;
+    qreal _hover;
+    bool _moving;
+    qreal _minXPos, _maxXPos;
+    QTimeLine _timeLine;
 };
 
 #endif
-- 
2.20.1