From b153f90a4c7f76a5ce5f4985bdbd687ba1602fdb Mon Sep 17 00:00:00 2001
From: Arno <am@disconnect.de>
Date: Fri, 18 Jun 2010 15:52:01 +0200
Subject: Created frontend for SeriesTreeModel::deleteFromSeries

Implemented frontend for SeriesTreeModel::deleteFromSeries. I hope
QPersistentModelIndexes work as advertised. From the qt-sources it seems
that a QPersistentModelIndex is automatically updated by
QAbstractItemModel when calling begin(Remove|Insert)Rows. Testing worked
out fine.

While at it I found a bug in SmTreeModel. removeRows has to be called
with (i - 1) instead of (i) to remove the correct nodes.
---
 seriestreemodel.cpp  |  1 +
 seriestreewidget.cpp | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 shemov.cpp           |  5 +++--
 smtreemodel.cpp      |  2 +-
 4 files changed, 59 insertions(+), 3 deletions(-)

diff --git a/seriestreemodel.cpp b/seriestreemodel.cpp
index b8a4425..846f00c 100644
--- a/seriestreemodel.cpp
+++ b/seriestreemodel.cpp
@@ -196,6 +196,7 @@ bool SeriesTreeModel::deleteFromSeries(const QModelIndex &what){
 			foreach(QFileInfo fi, files){
 				QFile::remove(fi.absoluteFilePath());
 			}
+			removeRows(what.row(), 1, what.parent());
 			return true;
 		}
 	}
diff --git a/seriestreewidget.cpp b/seriestreewidget.cpp
index 071667d..553a534 100644
--- a/seriestreewidget.cpp
+++ b/seriestreewidget.cpp
@@ -15,6 +15,7 @@
 #include <QContextMenuEvent>
 #include <QMenu>
 #include <QAction>
+#include <QMessageBox>
 
 #include "seriestreewidget.h"
 #include "smubermodel.h"
@@ -75,7 +76,60 @@ void SeriesTreeWidget::deleteFromSeries(){
 	if(selected.isEmpty()){
 		return;
 	}
+	QList<QPersistentModelIndex> series;
+	QList<QPersistentModelIndex> parts;
+	foreach(QModelIndex s, selected){
+		QModelIndex real = mProxy->mapToSource(s);
+		if(real.data(SeriesTreeModel::TypeRole).toInt() == SeriesTreeModel::Series || real.data(SeriesTreeModel::TypeRole).toInt() == SeriesTreeModel::NewSeries){
+			series << QPersistentModelIndex(real);
+		}
+		if(real.data(SeriesTreeModel::TypeRole).toInt() == SeriesTreeModel::Part){
+			parts << QPersistentModelIndex(real);
+		}
+	}
+	QList<QPersistentModelIndex> removeParts;
+	foreach(QPersistentModelIndex s, parts){
+		if(series.contains(s.parent())){
+			removeParts << s;
+		}
+	}
+	foreach(QPersistentModelIndex s, removeParts){
+		parts.removeAll(s);
+	}
+	QFileInfoList files;
+	foreach(QPersistentModelIndex s, series){
+		files.append(mModel->findFiles(s));
+	}
 
+	QString message;
+	if(!files.isEmpty()){
+		message = QString(tr("<p>This operation will delete %1 file(s) permanently:</p>")).arg(files.count());
+		message.append(tr("<ul>"));
+		int ctr = 0;
+		foreach(QFileInfo f, files){
+			++ctr;
+			QString li = QString(tr("<li>%1</li>")).arg(f.absoluteFilePath());
+			message.append(li);
+			if(ctr == 20){
+				QString elide = QString(tr("<li>(%1 more files)</li>")).arg(files.count() - ctr);
+				message.append(elide);
+				break;
+			}
+		}
+		message.append(tr("</ul>"));
+		message.append(tr("<p>Continue?</p>"));
+	}else{
+		message = QString(tr("<p>This operation will delete no files. Continue?</p>"));
+	}
+	int retval = QMessageBox::critical(this, tr("Delete Series"), message, QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
+	if(retval == QMessageBox::Yes){
+		foreach(QPersistentModelIndex s, series){
+			mModel->deleteFromSeries(s);
+		}
+		foreach(QPersistentModelIndex s, parts){
+			mModel->deleteFromSeries(s);
+		}
+	}
 }
 
 void SeriesTreeWidget::filter(){
diff --git a/shemov.cpp b/shemov.cpp
index d735ba3..8e5c54c 100644
--- a/shemov.cpp
+++ b/shemov.cpp
@@ -357,11 +357,12 @@ void SheMov::createActions(){
 	connect(mStatisticsA, SIGNAL(triggered()), this, SLOT(showStatistics()));
 
 	//Tree context menu
-	mNewSeriesA = new QAction(tr("New series"), this);
+	mNewSeriesA = new QAction(tr("New series..."), this);
 	mATree->seriesWidget()->seriesTree()->addAction(mNewSeriesA);
 	connect(mNewSeriesA, SIGNAL(triggered()), mATree->seriesWidget(), SLOT(newSeries()));
-	mDeleteFromSeriesA = new QAction(tr("Delete entry..."), this);
+	mDeleteFromSeriesA = new QAction(tr("Delete entries..."), this);
 	mATree->seriesWidget()->seriesTree()->addAction(mDeleteFromSeriesA);
+	connect(mDeleteFromSeriesA, SIGNAL(triggered()), mATree->seriesWidget(), SLOT(deleteFromSeries()));
 
 
 	// misc
diff --git a/smtreemodel.cpp b/smtreemodel.cpp
index 227c1cb..2a230cc 100644
--- a/smtreemodel.cpp
+++ b/smtreemodel.cpp
@@ -153,7 +153,7 @@ bool SmTreeModel::removeRows(int row, int count, const QModelIndex &parent){
 
 	beginRemoveRows(parent, row, row + count - 1);
 	for(int i = row + count; i > row; --i){
-		retval = parentItem->removeChild(i);
+		retval = parentItem->removeChild(i - 1);
 
 	}
 	endRemoveRows();
-- 
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