X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatscene.cpp;h=e99509e1a1f91761e06d222083f7dc19ca43cc69;hp=c3a07b15884440ff1cbf826bc03ea753d54c91b9;hb=17b8c981d7c47800392b7fd1c043c5ac1bcb19ef;hpb=ba934ceb1bfe30d01d5fb5c072c3197f8080be04

diff --git a/src/qtui/chatscene.cpp b/src/qtui/chatscene.cpp
index c3a07b15..e99509e1 100644
--- a/src/qtui/chatscene.cpp
+++ b/src/qtui/chatscene.cpp
@@ -34,6 +34,7 @@
 #include "qtui.h"
 #include "qtuistyle.h"
 #include "chatviewsettings.h"
+#include "webpreviewitem.h"
 
 const qreal minContentsWidth = 200;
 
@@ -43,6 +44,7 @@ ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, qreal w
     _model(model),
     _singleBufferScene(false),
     _sceneRect(0, 0, width, 0),
+    _viewportHeight(0),
     _selectingItem(0),
     _selectionStart(-1),
     _isSelecting(false),
@@ -89,13 +91,15 @@ ChatScene::~ChatScene() {
 
 void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
   Q_UNUSED(index);
+
+  clearWebPreview();
+
   qreal h = 0;
   qreal y = _sceneRect.y();
   qreal width = _sceneRect.width();
   bool atTop = true;
   bool atBottom = false;
   bool moveTop = false;
-  bool hasWidth = (width != 0);
 
   if(start > 0) {
     y = _lines.value(start - 1)->y() + _lines.value(start - 1)->height();
@@ -104,19 +108,27 @@ void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
   if(start == _lines.count())
     atBottom = true;
 
+  qreal contentsWidth = width - secondColumnHandle()->sceneRight();
+  qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
+  qreal timestampWidth = firstColumnHandle()->sceneLeft();
+  QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
+  QPointF senderPos(firstColumnHandle()->sceneRight(), 0);
+
+
   for(int i = end; i >= start; i--) {
-    ChatLine *line = new ChatLine(i, model());
+    ChatLine *line = new ChatLine(i, model(),
+				  width,
+				  timestampWidth, senderWidth, contentsWidth,
+				  senderPos, contentsPos);
+    if(atTop) {
+      h -= line->height();
+      line->setPos(0, y+h);
+    } else {
+      line->setPos(0, y+h);
+      h += line->height();
+    }
     _lines.insert(start, line);
     addItem(line);
-    if(hasWidth) {
-      if(atTop) {
-	h -= line->setGeometry(width);
-	line->setPos(0, y+h);
-      } else {
-	line->setPos(0, y+h);
-	h += line->setGeometry(width);
-      }
-    }
   }
 
   // update existing items
@@ -159,7 +171,7 @@ void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
     updateSceneRect(_sceneRect.adjusted(0, h, 0, 0));
   } else {
     updateSceneRect(_sceneRect.adjusted(0, 0, 0, h));
-    emit sceneHeightChanged(h);
+    emit lastLineChanged(_lines.last());
   }
 
 }
@@ -167,6 +179,8 @@ void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
 void ChatScene::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) {
   Q_UNUSED(parent);
 
+  clearWebPreview();
+
   qreal h = 0; // total height of removed items;
 
   bool atTop = (start == 0);
@@ -230,31 +244,57 @@ void ChatScene::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int e
   }
 }
 
+void ChatScene::updateForViewport(qreal width, qreal height) {
+  _viewportHeight = height;
+  setWidth(width);
+}
+
+// setWidth is used for 2 things:
+//  a) updating the scene to fit the width of the corresponding view
+//  b) to update the positions of the items if a columhandle has changed it's position
+// forceReposition is true in the second case
+// this method features some codeduplication for the sake of performance
 void ChatScene::setWidth(qreal width, bool forceReposition) {
   if(width == _sceneRect.width() && !forceReposition)
     return;
 
-  // clock_t startT = clock();
-  qreal oldHeight = _sceneRect.height();
-  qreal y = _sceneRect.y();
-  qreal linePos = y;
-
-  foreach(ChatLine *line, _lines) {
-    line->setPos(0, linePos);
-    linePos += line->setGeometry(width);
+//   clock_t startT = clock();
+
+  qreal linePos = _sceneRect.y() + _sceneRect.height();
+  qreal yBottom = linePos;
+  QList<ChatLine *>::iterator lineIter = _lines.end();
+  QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
+  ChatLine *line = 0;
+  qreal lineHeight = 0;
+  qreal contentsWidth = width - secondColumnHandle()->sceneRight();
+
+  if(forceReposition) {
+    qreal timestampWidth = firstColumnHandle()->sceneLeft();
+    qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
+    QPointF senderPos(firstColumnHandle()->sceneRight(), 0);
+    QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
+    while(lineIter != lineIterBegin) {
+      lineIter--;
+      line = *lineIter;
+      lineHeight = line->setColumns(timestampWidth, senderWidth, contentsWidth, senderPos, contentsPos);
+      linePos -= lineHeight;
+      line->setPos(0, linePos);
+    }
+  } else {
+    while(lineIter != lineIterBegin) {
+      lineIter--;
+      line = *lineIter;
+      lineHeight = line->setGeometryByWidth(width, contentsWidth);
+      linePos -= lineHeight;
+      line->setPos(0, linePos);
+    }
   }
 
-  qreal height = linePos - y;
-
-  updateSceneRect(QRectF(0, y, width, height));
+  updateSceneRect(QRectF(0, linePos, width, yBottom - linePos));
   setHandleXLimits();
 
-  qreal dh = height - oldHeight;
-  if(dh > 0)
-    emit sceneHeightChanged(dh);
-
-  // clock_t endT = clock();
-  // qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
+//   clock_t endT = clock();
+//   qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
 }
 
 void ChatScene::handlePositionChanged(qreal xpos) {
@@ -416,7 +456,7 @@ QString ChatScene::selectionToString() const {
 }
 
 void ChatScene::requestBacklog() {
-  static const int REQUEST_COUNT = 100;
+  static const int REQUEST_COUNT = 500;
   int backlogSize = model()->rowCount();
   if(isSingleBufferScene() && backlogSize != 0 && _lastBacklogSize + REQUEST_COUNT <= backlogSize) {
     QModelIndex msgIdx = model()->index(0, 0);
@@ -440,3 +480,55 @@ void ChatScene::updateSceneRect(const QRectF &rect) {
   _sceneRect = rect;
   setSceneRect(rect);
 }
+
+
+void ChatScene::loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect) {
+#ifndef HAVE_WEBKIT
+  Q_UNUSED(parentItem)
+  Q_UNUSED(url)
+  Q_UNUSED(urlRect)
+#else
+  if(webPreview.parentItem != parentItem)
+    webPreview.parentItem = parentItem;
+
+  if(webPreview.url != url) {
+    webPreview.url = url;
+    // load a new web view and delete the old one (if exists)
+    if(webPreview.previewItem) {
+      removeItem(webPreview.previewItem);
+      delete webPreview.previewItem;
+    }
+    webPreview.previewItem = new WebPreviewItem(url);
+    addItem(webPreview.previewItem);
+  }
+  if(webPreview.urlRect != urlRect) {
+    webPreview.urlRect = urlRect;
+    qreal previewY = urlRect.bottom();
+    qreal previewX = urlRect.x();
+    if(previewY + webPreview.previewItem->boundingRect().height() > sceneRect().bottom())
+      previewY = urlRect.y() - webPreview.previewItem->boundingRect().height();
+
+    if(previewX + webPreview.previewItem->boundingRect().width() > sceneRect().width())
+      previewX = sceneRect().right() - webPreview.previewItem->boundingRect().width();
+
+    webPreview.previewItem->setPos(previewX, previewY);
+  }
+#endif
+}
+
+void ChatScene::clearWebPreview(ChatItem *parentItem) {
+#ifndef HAVE_WEBKIT
+  Q_UNUSED(parentItem)
+#else
+  if(parentItem == 0 || webPreview.parentItem == parentItem) {
+    if(webPreview.previewItem) {
+      removeItem(webPreview.previewItem);
+      delete webPreview.previewItem;
+      webPreview.previewItem = 0;
+    }
+    webPreview.parentItem = 0;
+    webPreview.url = QString();
+    webPreview.urlRect = QRectF();
+  }
+#endif
+}