Optimized search of feed items in RSFeedWidget by using a map instead of QTreeWidgetItemIterator.

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@8013 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/common/RSFeedWidget.cpp

@@ -26,7 +26,8 @@
 #include "ui_RSFeedWidget.h"
 #include "RSTreeWidgetItem.h"
 #include "gui/feeds/FeedItem.h"
-#include "gui/gxs/GxsFeedItem.h"
+
+#include <iostream>
 
 #define COLUMN_FEED 0
 
@@ -108,6 +109,7 @@ bool RSFeedWidget::eventFilter(QObject *object, QEvent *event)
 						FeedItem *feedItem = feedItemFromTreeItem(treeItem);
 						if (feedItem) {
 							disconnectSignals(feedItem);
+							feedRemoved(feedItem);
 							delete(feedItem);
 						}
 						delete(treeItem);
@@ -127,6 +129,21 @@ bool RSFeedWidget::eventFilter(QObject *object, QEvent *event)
 	return QWidget::eventFilter(object, event);
 }
 
+void RSFeedWidget::feedAdded(FeedItem *feedItem, QTreeWidgetItem *treeItem)
+{
+	mItems.insert(feedItem, treeItem);
+}
+
+void RSFeedWidget::feedRemoved(FeedItem *feedItem)
+{
+	mItems.remove(feedItem);
+}
+
+void RSFeedWidget::feedsCleared()
+{
+	mItems.clear();
+}
+
 void RSFeedWidget::connectSignals(FeedItem *feedItem)
 {
 	connect(feedItem, SIGNAL(feedItemDestroyed(FeedItem*)), this, SLOT(feedItemDestroyed(FeedItem*)));
@@ -167,6 +184,8 @@ void RSFeedWidget::addFeedItem(FeedItem *feedItem, Qt::ItemDataRole sortRole, co
 	ui->treeWidget->addTopLevelItem(treeItem);
 	ui->treeWidget->setItemWidget(treeItem, 0, feedItem);
 
+	feedAdded(feedItem, treeItem);
+
 	connectSignals(feedItem);
 
 	filterItem(treeItem, feedItem);
@@ -192,6 +211,8 @@ void RSFeedWidget::addFeedItem(FeedItem *feedItem, const QMap<Qt::ItemDataRole,
 	ui->treeWidget->addTopLevelItem(treeItem);
 	ui->treeWidget->setItemWidget(treeItem, 0, feedItem);
 
+	feedAdded(feedItem, treeItem);
+
 	connectSignals(feedItem);
 
 	filterItem(treeItem, feedItem);
@@ -246,6 +267,8 @@ void RSFeedWidget::clear()
 		}
 	}
 
+	feedsCleared();
+
 	/* Clear items */
 	ui->treeWidget->clear();
 
@@ -369,6 +392,7 @@ void RSFeedWidget::removeFeedItem(FeedItem *feedItem)
 	disconnectSignals(feedItem);
 
 	QTreeWidgetItem *treeItem = findTreeWidgetItem(feedItem);
+	feedRemoved(feedItem);
 	if (treeItem) {
 		delete(treeItem);
 	}
@@ -396,6 +420,7 @@ void RSFeedWidget::feedItemDestroyed(FeedItem *feedItem)
 	/* No need to disconnect when object will be destroyed */
 
 	QTreeWidgetItem *treeItem = findTreeWidgetItem(feedItem);
+	feedRemoved(feedItem);
 	if (treeItem) {
 		delete(treeItem);
 	}
@@ -407,16 +432,12 @@ void RSFeedWidget::feedItemDestroyed(FeedItem *feedItem)
 
 QTreeWidgetItem *RSFeedWidget::findTreeWidgetItem(FeedItem *feedItem)
 {
-	QTreeWidgetItemIterator it(ui->treeWidget);
-	QTreeWidgetItem *treeItem;
-	while ((treeItem = *it) != NULL) {
-		++it;
-		if (feedItemFromTreeItem(treeItem) == feedItem) {
-			return treeItem;
-		}
+	QMap<FeedItem*, QTreeWidgetItem*>::iterator it = mItems.find(feedItem);
+	if (it == mItems.end()) {
+		return NULL;
 	}
 
-	return NULL;
+	return it.value();
 }
 
 bool RSFeedWidget::scrollTo(FeedItem *feedItem, bool focus)
@@ -491,38 +512,3 @@ void RSFeedWidget::selectedFeedItems(QList<FeedItem*> &feedItems)
 		feedItems.push_back(feedItem);
 	}
 }
-
-struct FindGxsFeedItemData
-{
-	FindGxsFeedItemData(const RsGxsGroupId &groupId, const RsGxsMessageId &messageId) : mGroupId(groupId), mMessageId(messageId) {}
-
-	const RsGxsGroupId &mGroupId;
-	const RsGxsMessageId &mMessageId;
-};
-
-static bool findGxsFeedItemCallback(FeedItem *feedItem, void *data)
-{
-	FindGxsFeedItemData *findData = (FindGxsFeedItemData*) data;
-	if (!findData || findData->mGroupId.isNull() || findData->mMessageId.isNull()) {
-		return false;
-	}
-
-	GxsFeedItem *item = dynamic_cast<GxsFeedItem*>(feedItem);
-	if (!item) {
-		return false;
-	}
-
-	if (item->groupId() != findData->mGroupId ||
-	    item->messageId() != findData->mMessageId) {
-		return false;
-	}
-
-	return true;
-}
-
-GxsFeedItem *RSFeedWidget::findGxsFeedItem(const RsGxsGroupId &groupId, const RsGxsMessageId &messageId)
-{
-	FindGxsFeedItemData data(groupId, messageId);
-	FeedItem *feedItem = findFeedItem(findGxsFeedItemCallback, &data);
-	return dynamic_cast<GxsFeedItem*>(feedItem);
-}

retroshare-gui/src/gui/common/RSFeedWidget.h

@@ -26,14 +26,11 @@
 #include <QWidget>
 #include <QMap>
 
-#include "retroshare/rsgxsifacetypes.h"
-
 #define FEED_TREEWIDGET_SORTROLE Qt::UserRole
 
 class FeedItem;
 class QTreeWidgetItem;
 class RSTreeWidgetItemCompareRole;
-class GxsFeedItem;
 
 namespace Ui {
 class RSFeedWidget;
@@ -79,9 +76,6 @@ public:
 
 	void selectedFeedItems(QList<FeedItem*> &feedItems);
 
-	/* Convenience functions */
-	GxsFeedItem *findGxsFeedItem(const RsGxsGroupId &groupId, const RsGxsMessageId &messageId);
-
 signals:
 	void feedCountChanged();
 
@@ -93,6 +87,9 @@ public slots:
 
 protected:
 	bool eventFilter(QObject *object, QEvent *event);
+	virtual void feedAdded(FeedItem *feedItem, QTreeWidgetItem *treeItem);
+	virtual void feedRemoved(FeedItem *feedItem);
+	virtual void feedsCleared();
 
 private slots:
 	void feedItemDestroyed(FeedItem *feedItem);
@@ -121,6 +118,9 @@ private:
 	/* Options */
 	int mCountChangedDisabled;
 
+	/* Items */
+	QMap<FeedItem*, QTreeWidgetItem*> mItems;
+
 	Ui::RSFeedWidget *ui;
 };
 

retroshare-gui/src/gui/gxs/GxsFeedWidget.cpp

@@ -0,0 +1,75 @@
+/****************************************************************
+ * This file is distributed under the following license:
+ *
+ * Copyright (c) 2015, RetroShare Team
+ *
+ *  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) any later version.
+ *
+ *  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., 51 Franklin Street, Fifth Floor, 
+ *  Boston, MA  02110-1301, USA.
+ ****************************************************************/
+
+#include "GxsFeedWidget.h"
+#include "gui/gxs/GxsFeedItem.h"
+
+#define PAIR(groupId,messageId) QPair<RsGxsGroupId, RsGxsMessageId>(groupId, messageId)
+
+GxsFeedWidget::GxsFeedWidget(QWidget *parent)
+    : RSFeedWidget(parent)
+{
+}
+
+GxsFeedWidget::~GxsFeedWidget()
+{
+}
+
+void GxsFeedWidget::feedAdded(FeedItem *feedItem, QTreeWidgetItem *treeItem)
+{
+	RSFeedWidget::feedAdded(feedItem, treeItem);
+
+	GxsFeedItem *gxsFeedItem = dynamic_cast<GxsFeedItem*>(feedItem);
+	if (!gxsFeedItem) {
+		return;
+	}
+
+	mGxsItems.insert(PAIR(gxsFeedItem->groupId(), gxsFeedItem->messageId()), feedItem);
+}
+
+void GxsFeedWidget::feedRemoved(FeedItem *feedItem)
+{
+	RSFeedWidget::feedRemoved(feedItem);
+
+	GxsFeedItem *gxsFeedItem = dynamic_cast<GxsFeedItem*>(feedItem);
+	if (!gxsFeedItem) {
+		return;
+	}
+
+	mGxsItems.remove(PAIR(gxsFeedItem->groupId(), gxsFeedItem->messageId()));
+}
+
+void GxsFeedWidget::feedsCleared()
+{
+	RSFeedWidget::feedsCleared();
+
+	mGxsItems.clear();
+}
+
+GxsFeedItem *GxsFeedWidget::findGxsFeedItem(const RsGxsGroupId &groupId, const RsGxsMessageId &messageId)
+{
+	QMap<QPair<RsGxsGroupId, RsGxsMessageId>, FeedItem*>::iterator it = mGxsItems.find(PAIR(groupId, messageId));
+	if (it == mGxsItems.end()) {
+		return NULL;
+	}
+
+	return dynamic_cast<GxsFeedItem*>(it.value());
+}

retroshare-gui/src/gui/gxs/GxsFeedWidget.h

@@ -0,0 +1,52 @@
+/****************************************************************
+ * This file is distributed under the following license:
+ *
+ * Copyright (c) 2015, RetroShare Team
+ *
+ *  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) any later version.
+ *
+ *  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., 51 Franklin Street, Fifth Floor, 
+ *  Boston, MA  02110-1301, USA.
+ ****************************************************************/
+
+#ifndef _GXSFEEDTREEWIDGET_H
+#define _GXSFEEDTREEWIDGET_H
+
+#include "gui/common/RSFeedWidget.h"
+
+#include "retroshare/rsgxsifacetypes.h"
+
+class GxsFeedItem;
+
+class GxsFeedWidget : public RSFeedWidget
+{
+	Q_OBJECT
+
+public:
+	GxsFeedWidget(QWidget *parent = 0);
+	virtual ~GxsFeedWidget();
+
+	GxsFeedItem *findGxsFeedItem(const RsGxsGroupId &groupId, const RsGxsMessageId &messageId);
+
+protected:
+	/* RSFeedWidget */
+	virtual void feedAdded(FeedItem *feedItem, QTreeWidgetItem *treeItem);
+	virtual void feedRemoved(FeedItem *feedItem);
+	virtual void feedsCleared();
+
+private:
+	/* Items */
+	QMap<QPair<RsGxsGroupId, RsGxsMessageId>, FeedItem*> mGxsItems;
+};
+
+#endif

retroshare-gui/src/gui/gxschannels/GxsChannelPostsWidget.ui

@@ -454,7 +454,7 @@
     </widget>
    </item>
    <item>
-    <widget class="RSFeedWidget" name="feedWidget" native="true">
+    <widget class="GxsFeedWidget" name="feedWidget" native="true">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
        <horstretch>0</horstretch>
@@ -497,9 +497,9 @@
    <header>gui/common/SubscribeToolButton.h</header>
   </customwidget>
   <customwidget>
-   <class>RSFeedWidget</class>
+   <class>GxsFeedWidget</class>
    <extends>QWidget</extends>
-   <header>gui/common/RSFeedWidget.h</header>
+   <header>gui/gxs/GxsFeedWidget.h</header>
    <container>1</container>
   </customwidget>
   <customwidget>

retroshare-gui/src/retroshare-gui.pro

@@ -1297,6 +1297,7 @@ gxsgui {
 		gui/gxs/RsGxsUpdateBroadcastPage.h \
 		gui/gxs/GxsGroupShareKey.h \
 		gui/gxs/GxsUserNotify.h \
+		gui/gxs/GxsFeedWidget.h \
 		util/TokenQueue.h \
 		util/RsGxsUpdateBroadcast.h \
 	
@@ -1333,6 +1334,7 @@ gxsgui {
 		gui/gxs/RsGxsUpdateBroadcastWidget.cpp \
 		gui/gxs/RsGxsUpdateBroadcastPage.cpp \
 		gui/gxs/GxsUserNotify.cpp \
+		gui/gxs/GxsFeedWidget.cpp \
 		util/TokenQueue.cpp \
 		util/RsGxsUpdateBroadcast.cpp \