Fix crash on creating new file if a specific file type is selected

from the popup menu on the New file icon.
This relates to issue #4.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit ae5e2adcf39a6c7abbcd874e40e05bbbff428e2c)

3 files changed, 48 insertions, 10 deletions

diff --git a/parts/filecreate/filecreate_filetype.h b/parts/filecreate/filecreate_filetype.h
index 4b050708..e2d2a279 100644
--- a/parts/filecreate/filecreate_filetype.h
+++ b/parts/filecreate/filecreate_filetype.h
@@ -40,10 +40,13 @@ public:
   bool enabled() const { return m_enabled; }
 
   void setSubtypesEnabled(bool enabled = true);
-  
+
   void addSubtype(const FileType * subtype) { m_subtypes.append(subtype); }
   TQPtrList<FileType> subtypes() const { return m_subtypes; }
-  
+
+  void setId(int id) { m_id = id; }
+  int id() const { return m_id; }
+
 private:
   TQString m_name;
   TQString m_ext;
@@ -53,9 +56,10 @@ private:
   TQString m_descr;
 
   bool m_enabled;
-  
+
   TQPtrList<FileType> m_subtypes;
 
+  int m_id;
 };
 
 }
diff --git a/parts/filecreate/filecreate_part.cpp b/parts/filecreate/filecreate_part.cpp
index 371e3733..40c8e2c0 100644
--- a/parts/filecreate/filecreate_part.cpp
+++ b/parts/filecreate/filecreate_part.cpp
@@ -137,7 +137,7 @@ void FileCreatePart::slotAboutToShowNewPopupMenu()
 					TDEIcon::DefaultState, NULL, true);
 				m_newPopupMenu->insertItem(iconPix, filetype->name(), this,
 					TQT_SLOT(slotNewFilePopup(int)), 0, ++id );
-				m_newPopupMenu->setItemParameter( id, (long)filetype );
+				m_newPopupMenu->setItemParameter( id, filetype->id() );
 			} else
 			{
 				TDEPopupMenu* subMenu = NULL;
@@ -152,7 +152,7 @@ void FileCreatePart::slotAboutToShowNewPopupMenu()
 							TDEIcon::DefaultState, NULL, true);
 						subMenu->insertItem(iconPix, subtype->name(), this,
 							TQT_SLOT(slotNewFilePopup(int)), 0, ++id );
-						subMenu->setItemParameter( id, (long)subtype );
+						subMenu->setItemParameter( id, subtype->id() );
 					}
 				}
 				if( subMenu )
@@ -172,9 +172,9 @@ void FileCreatePart::slotAboutToShowNewPopupMenu()
 	}
 }
 
-void FileCreatePart::slotNewFilePopup( int pFileType )
+void FileCreatePart::slotNewFilePopup( int fileTypeId )
 {
-	const FileType* filetype = (const FileType*) pFileType;
+	const FileType* filetype = getType(fileTypeId);
 	slotFiletypeSelected( filetype );
 }
 
@@ -193,10 +193,13 @@ void FileCreatePart::slotProjectOpened() {
 void FileCreatePart::addFileType(const TQString & filename) {
   FileType * filetype = getType(filename);
   if (!filetype) {
+    FileType* lastFiletype = m_filetypes.last();
+    int lastTypeId = (lastFiletype && lastFiletype->id() < 0 ? lastFiletype->id() : 0);
     filetype = new FileType;
     filetype->setName( filename + " files" );
     filetype->setExt( filename );
     filetype->setCreateMethod("template");
+    filetype->setId(--lastTypeId);
     m_filetypes.append(filetype);
   }
   filetype->setEnabled(true);
@@ -212,7 +215,9 @@ void FileCreatePart::slotFiletypeSelected(const FileType * filetype) {
   KDevCreateFile::CreatedFile createdFile = createNewFile(filetype->ext(),
                                                           TQString(),
                                                           TQString(),
-                                                          filetype->subtypeRef());
+                                                          filetype
+                                                          ? filetype->subtypeRef()
+                                                          : TQString());
 
   openCreatedFile(createdFile);
 }
@@ -228,6 +233,7 @@ void FileCreatePart::openCreatedFile(const KDevCreateFile::CreatedFile & created
 
 int FileCreatePart::readTypes(const TQDomDocument & dom, TQPtrList<FileType> &m_filetypes, bool enable) {
   int numRead = 0;
+  int typeId = 0;
   TQDomElement fileTypes = DomUtil::elementByPath(dom,"/kdevfilecreate/filetypes");
   if (!fileTypes.isNull()) {
     for(TQDomNode node = fileTypes.firstChild();!node.isNull();node=node.nextSibling()) {
@@ -242,6 +248,7 @@ int FileCreatePart::readTypes(const TQDomDocument & dom, TQPtrList<FileType> &m_
         filetype->setIcon( element.attribute("icon") );
         filetype->setDescr( (DomUtil::namedChildElement(element, "descr")).text() );
         filetype->setEnabled(enable || (filetype->ext()==""));
+        filetype->setId(++typeId);
         m_filetypes.append(filetype);
         numRead++;
 
@@ -260,6 +267,7 @@ int FileCreatePart::readTypes(const TQDomDocument & dom, TQPtrList<FileType> &m_
               subtype->setName( subelement.attribute("name") );
               subtype->setDescr( (DomUtil::namedChildElement(subelement, "descr")).text() );
               subtype->setEnabled(enable);
+              subtype->setId(++typeId);
               filetype->addSubtype(subtype);
             }
           }
@@ -297,6 +305,25 @@ FileType * FileCreatePart::getType(const TQString & ex, const TQString subtRef)
   return NULL;
 }
 
+FileType * FileCreatePart::getType(int id) {
+
+    TQPtrList<FileType> filetypes = getFileTypes();
+    for(FileType* filetype = filetypes.first();
+        filetype;
+        filetype = filetypes.next())
+    {
+        if (filetype->id() == id) return filetype;
+        TQPtrList<FileType> subtypes = filetype->subtypes();
+        for(FileType* subtype = subtypes.first();
+            subtype;
+            subtype = subtypes.next())
+        {
+            if (subtype->id() == id) return subtype;
+        }
+    }
+    return NULL;
+}
+
 FileType * FileCreatePart::getEnabledType(const TQString & ex, const TQString subtRef) {
 
   TQString subtypeRef = subtRef;
diff --git a/parts/filecreate/filecreate_part.h b/parts/filecreate/filecreate_part.h
index 9d090493..ab870791 100644
--- a/parts/filecreate/filecreate_part.h
+++ b/parts/filecreate/filecreate_part.h
@@ -68,6 +68,13 @@ public:
    */
   FileType * getType(const TQString & ext, const TQString subtype = TQString());
   /**
+   * Finds the file type object for a given file type or subtype ID.
+   * IDs for file types are not persistent. ID is a sequence number assigned when
+   * reading file type definitions from an XML file. Negative numbers are assigned
+   * for custom file types.
+   */
+  FileType * getType(int id);
+  /**
    * Finds the file type object for a given extension and optionally subtype.
    * You can omit the subtype and specify the extension as ext-subtype if you wish.
    * Returns only enabled type (i.e. used in the project).
@@ -93,9 +100,9 @@ public slots:
 
   /**
    * Called from TDEToolBarPopupMenu to request a new file action
-   * @param pFileType is acutally a pointer to FileType
+   * @param fileTypeId is a sequence number that identifies a particular FileType
    */
-  void slotNewFilePopup(int pFileType);
+  void slotNewFilePopup(int fileTypeId);
 
 protected slots:
   void slotNoteFiletype(const FileType * filetype);