New element panel can display the thumbnail of elements used in a project

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4293 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/ElementsCollection/elementlocation.cpp

@@ -19,6 +19,9 @@
 #include "qetapp.h"
 #include "qetproject.h"
 #include "elementscollectioncache.h"
+#include "xmlelementcollection.h"
+#include "elementfactory.h"
+#include "element.h"
 
 /**
  * @brief ElementLocation::ElementLocation
@@ -34,6 +37,7 @@ ElementLocation::ElementLocation(QString path):
 /**
  * @brief ElementLocation::ElementLocation
  * @param path : path of item embedded in @project
+ * The path must be in form : embed://dir/subdir/myElement.elmt
  * @param project : project
  */
 ElementLocation::ElementLocation(QString path, QETProject *project) :
@@ -58,11 +62,42 @@ bool ElementLocation::setPath(QString path)
 {
 	QString tmp_path = path;
 
-		//The path is in file system
-	if (!m_project)
+		//There is a project, the path is for an embedded coolection.
+	if (m_project)
 	{
-			//The given path is relative to common or custom collection
-		if (path.startsWith("common://") || path.startsWith("custom://"))
+		if (path.startsWith("embed://"))
+		{
+			m_collection_path = path;
+			return true;
+		}
+		else
+			return false;
+	}
+
+		//The path start with project, we get the project and the path from the string
+	else if (tmp_path.startsWith("project"))
+	{
+		QRegExp rx("^project([0-9]+)\\+(embed:\\/\\/.*)$", Qt::CaseInsensitive);
+		if (rx.exactMatch(tmp_path))
+		{
+			bool conv_ok;
+			uint project_id = rx.capturedTexts().at(1).toUInt(&conv_ok);
+			if (conv_ok)
+			{
+				QETProject *project = QETApp::project(project_id);
+				if (project)
+				{
+					m_collection_path = rx.capturedTexts().at(2);
+					m_project = project;
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+		//The path is in file system, the given path is relative to common or custom collection
+	else if (path.startsWith("common://") || path.startsWith("custom://"))
 	{
 		QString p;
 		if (path.startsWith("common://"))
@@ -149,25 +184,26 @@ bool ElementLocation::setPath(QString path)
 			return false;
 		}
 	}
-	}
 
 	return false;
 }
 
+/**
+ * @brief ElementLocation::isNull
+ * @return True represent nothing
+ */
 bool ElementLocation::isNull() const
 {
-	if (m_file_system_path.isEmpty())
-		return true;
-	else
-		return false;
+	if (!m_file_system_path.isEmpty()) return false;
+	else if (!m_collection_path.isEmpty()) return false;
+	else return true;
 }
 
 /**
  * @brief ElementLocation::setProject
  * @param project : set the project of this location to @project.
  */
-void ElementLocation::setProject(QETProject *project)
-{
+void ElementLocation::setProject(QETProject *project) {
 	m_project = project;
 }
 
@@ -233,6 +269,20 @@ QDomElement ElementLocation::xml()
 		if (docu.setContent(&file))
 			m_xml = docu.documentElement().cloneNode().toElement();
 	}
+	else
+	{
+		QString str = m_collection_path;
+		if (isElement())
+		{
+			QDomElement element = m_project->embeddedElementCollection()->element(str.remove("embed://"));
+			m_xml = element.firstChildElement("definition");
+		}
+		else
+		{
+			QDomElement element = m_project->embeddedElementCollection()->directory(str.remove("embed://"));
+			m_xml = element;
+		}
+	}
 
 	return m_xml;
 }
@@ -254,22 +304,65 @@ QUuid ElementLocation::uuid()
 	return m_uuid;
 }
 
+/**
+ * @brief ElementLocation::icon
+ * @return The icon of the represented element.
+ * If icon can't be set, return a null QIcon
+ */
 QIcon ElementLocation::icon()
 {
 	if (!m_icon.isNull()) return m_icon;
 
+	if (!m_project)
+	{
 		ElementsCollectionCache *cache = QETApp::collectionCache();
 		if (cache->fetchElement(*this))
 			m_icon = QIcon(cache->pixmap());
+	}
+	else
+	{
+		ElementFactory *factory = ElementFactory::Instance();
+		int state;
+		Element *elmt = factory->createElement(*this, 0, &state);
+
+		if (state == 0)
+			m_icon = QIcon(elmt->pixmap());
+	}
 
 	return m_icon;
 }
 
+/**
+ * @brief ElementLocation::name
+ * @return The name of the represented element in the current local
+ */
 QString ElementLocation::name()
 {
+	if (!m_project)
+	{
 		ElementsCollectionCache *cache = QETApp::collectionCache();
 		if (cache->fetchElement(*this))
 			return cache->name();
 		else
 			return QString();
+	}
+	else
+	{
+		NamesList nl;
+		nl.fromXml(xml());
+		return nl.name(fileName());
+	}
+}
+
+/**
+ * @brief ElementLocation::fileName
+ * @return Return the file name of this element whatever the storage system (file system, xml collection)
+ */
+QString ElementLocation::fileName() const
+{
+	if (m_collection_path.isEmpty()) return QString();
+
+	QStringList qsl = m_collection_path.split("/");
+	if (qsl.isEmpty()) return QString();
+	else return qsl.last();
 }

sources/ElementsCollection/elementlocation.h

@@ -53,6 +53,7 @@ class ElementLocation
         QUuid uuid();
 		QIcon icon();
 		QString name();
+		QString fileName() const;
 
     private:
         QString m_collection_path;

sources/ElementsCollection/xmlelementcollection.cpp

@@ -16,12 +16,17 @@
 	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "xmlelementcollection.h"
-#include "qdebug.h"
 #include "nameslist.h"
 
 /**
  * @brief XmlElementCollection::XmlElementCollection
- * Build an empty collection
+ * Build an empty collection.
+ * The collection start by :
+ *		<collection>
+ *			<category name="import>
+ *			</category>
+ *		</collection>
+ * All elements and category are stored as child of <category name="import>
  * @param parent
  */
 XmlElementCollection::XmlElementCollection(QObject *parent) :
@@ -130,3 +135,75 @@ QList<QDomElement> XmlElementCollection::elements(const QDomElement &parent_elem
 
 	return element_list;
 }
+
+/**
+ * @brief XmlElementCollection::element
+ * @param path : path of element : the path must start by "import/",
+ * because import is the first directory of an xml collection
+ * @return the QDomElement that represent the element at path @path
+ * or a null QDomElement if not found or doesn't represent an element
+ */
+QDomElement XmlElementCollection::element(const QString &path)
+{
+	if (!path.endsWith(".elmt")) return QDomElement();
+
+	QStringList path_list = path.split("/");
+	QString element_name = path_list.last();
+	path_list.removeLast();
+
+	QDomElement dom_element = directory(path_list.join("/"));
+	if (dom_element.isNull()) return QDomElement();
+
+	QDomNodeList node_list = dom_element.elementsByTagName("element");
+	if (node_list.isEmpty()) return QDomElement();
+
+	for (int i=0 ; i <node_list.size() ; i++)
+	{
+		QDomNode node = node_list.at(i);
+		if (node.isElement())
+		{
+			QDomElement qde = node.toElement();
+			if (qde.attribute("name") == element_name)
+				return qde;
+		}
+	}
+
+	return QDomElement();
+}
+
+/**
+ * @brief XmlElementCollection::directory
+ * @param path : path of directory : the path must start by "import/",
+ * because import is the first directory of an xml collection
+ * @return the QDomElement that represent the directory at path @path
+ * or a null QDomElement if not found.
+ */
+QDomElement XmlElementCollection::directory(const QString &path)
+{
+	QStringList path_list = path.split("/");
+	QDomElement dom_element = m_dom_document.documentElement();
+
+	for (int i=0 ; i<path_list.size() ; i++)
+	{
+		QDomNodeList node_list = dom_element.elementsByTagName("category");
+		if (node_list.isEmpty()) return QDomElement();
+
+		for (int j=0 ; j <node_list.size() ; j++)
+		{
+			QDomNode node = node_list.at(j);
+			if (node.isElement())
+			{
+				QDomElement qde = node.toElement();
+				if (qde.attribute("name") == path_list.at(i))
+				{
+					dom_element = node.toElement();
+					j = node_list.size(); //Use to go out of the for loop
+				}
+				else if (j == node_list.size()-1)
+					return QDomElement();
+			}
+		}
+	}
+
+	return dom_element;
+}

sources/ElementsCollection/xmlelementcollection.h

@@ -23,6 +23,10 @@
 
 class QDomElement;
 
+/**
+ * @brief The XmlElementCollection class
+ * This class represent a collection of elements stored to xml
+ */
 class XmlElementCollection : public QObject
 {
 		Q_OBJECT
@@ -33,6 +37,8 @@ class XmlElementCollection : public QObject
 		QDomNodeList childs(const QDomElement &parent_element);
 		QList<QDomElement> directory(const QDomElement &parent_element);
 		QList<QDomElement> elements(const QDomElement &parent_element);
+		QDomElement element(const QString &path);
+		QDomElement directory(const QString &path);
 
 	signals:
 

sources/ElementsCollection/xmlprojectelementcollectionitem.cpp

@@ -21,6 +21,7 @@
 #include "xmlelementcollection.h"
 #include "nameslist.h"
 #include "qetapp.h"
+#include "elementlocation.h"
 #include <algorithm>
 
 /**
@@ -81,7 +82,14 @@ QVariant XmlProjectElementCollectionItem::data(int column, int role)
 			else if (isDir())
 				return QET::Icons::Folder;
 			else
-				return QET::Icons::Element;
+			{
+				if (m_icon.isNull())
+				{
+					ElementLocation loc(embeddedPath(), m_project);
+					m_icon = loc.icon();
+				}
+				return m_icon;
+			}
             break;
 		case Qt::ToolTipRole:
 			if (isCollectionRoot())
@@ -151,23 +159,8 @@ QString XmlProjectElementCollectionItem::name()
     }
 	else
 	{
-		NamesList nl;
-		if (isDir())
-		{
-			nl.fromXml(m_dom_element);
-			if (nl.name().isEmpty())
-				m_name = m_dom_element.attribute("name");
-			else
-				m_name = nl.name();
-		}
-		else
-		{
-			nl.fromXml(m_dom_element.firstChildElement("definition"));
-			if (nl.name().isEmpty())
-				m_name = m_dom_element.attribute("name");
-			else
-				m_name = nl.name();
-		}
+		ElementLocation location (embeddedPath(), m_project);
+		m_name = location.name();
 		return m_name;
 	}
 }
@@ -210,7 +203,8 @@ bool XmlProjectElementCollectionItem::isElement() const
 
 /**
  * @brief XmlProjectElementCollectionItem::collectionPath
- * @return The collection path of this item
+ * @return The collection path of this item.
+ * The path is in form : project0+embed://dir/subdir/myElement.elmt
  */
 QString XmlProjectElementCollectionItem::collectionPath() const
 {
@@ -230,6 +224,28 @@ QString XmlProjectElementCollectionItem::collectionPath() const
 	}
 }
 
+/**
+ * @brief XmlProjectElementCollectionItem::embeddedPath
+ * @return The embedde path of this item
+ * The path is in form : embed://dir/subdir/myElement.elmt
+ */
+QString XmlProjectElementCollectionItem::embeddedPath() const
+{
+	if (isCollectionRoot())
+	{
+		return "embed://";
+	}
+	else
+	{
+		XmlProjectElementCollectionItem *parent = static_cast<XmlProjectElementCollectionItem *>(m_parent_item);
+
+		if (parent->isCollectionRoot())
+			return parent->embeddedPath() + m_dom_element.attribute("name");
+		else
+			return parent->embeddedPath() + "/" + m_dom_element.attribute("name");
+	}
+}
+
 /**
  * @brief XmlProjectElementCollectionItem::populate
  * Populate this item

sources/ElementsCollection/xmlprojectelementcollectionitem.h

@@ -21,6 +21,7 @@
 #include "elementcollectionitem.h"
 
 #include <QDomElement>
+#include <QIcon>
 
 class QETProject;
 
@@ -51,6 +52,7 @@ class XmlProjectElementCollectionItem : public ElementCollectionItem
 		virtual bool isDir() const;
 		virtual bool isElement() const;
 		QString collectionPath() const;
+		QString embeddedPath() const;
 
 	private:
 		void populate();
@@ -58,6 +60,7 @@ class XmlProjectElementCollectionItem : public ElementCollectionItem
 	private:
 		QETProject *m_project;
 		QDomElement m_dom_element;
+		QIcon m_icon;
 };
 
 #endif // XMLPROJECTELEMENTCOLLECTIONITEM_H

sources/factory/elementfactory.cpp

@@ -59,3 +59,31 @@ Element * ElementFactory::createElement(const ElementsLocation &location, QGraph
 		//default if nothing match for link_type
 	return (new SimpleElement(location, qgi, state));
 }
+
+/**
+ * @brief ElementFactory::createElement
+ * @param location : The location of the element
+ * @param parent : parent item for the new element
+ * @param state : state of the creation
+ * @return : the element or nullptr if the creation failed
+ */
+Element *ElementFactory::createElement(ElementLocation &location, QGraphicsItem *parent, int *state)
+{
+	if (!location.isElement() || location.isNull())
+	{
+		if (state) *state = 1;
+		return nullptr;
+	}
+
+	if (location.xml().hasAttribute("link_type"))
+	{
+		QString link_type = location.xml().attribute("link_type");
+		if (link_type == "next_report" || link_type == "previous_report") return (new ReportElement(location, link_type, parent, state));
+		if (link_type == "master")   return (new MasterElement   (location, parent, state));
+		if (link_type == "slave")    return (new SlaveElement    (location, parent, state));
+		if (link_type == "terminal") return (new TerminalElement (location, parent, state));
+	}
+
+		//default if nothing match for link_type
+	return (new SimpleElement(location, parent, state));
+}

sources/factory/elementfactory.h

@@ -70,7 +70,8 @@ class ElementFactory
 		~ElementFactory() {}
 
 	public:
-		Element * createElement (const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		Element *createElement (const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		Element *createElement(ElementLocation &location, QGraphicsItem *parent = nullptr, int *state = nullptr);
 };
 //ElementFactory ElementFactory::factory_ = 0;
 #endif // ELEMENTFACTORY_H

sources/qetgraphicsitem/customelement.cpp

@@ -90,6 +90,50 @@ CustomElement::CustomElement(const ElementsLocation &location, QGraphicsItem *qg
 	elmt_state = 0;
 }
 
+/**
+ * @brief CustomElement::CustomElement
+ * Constructor build an element from the location @location
+ * @param location : location of the element
+ * @param parent : parent of element
+ * @param state : pointeur used to know the encountered error at creation...
+		- 0 : No error
+		- 1 : The location don't represent an element
+		- 2 : The location can't be readable
+		- 3 : The location isn't valid / exploitable / usable
+		- 4 : The xml document wasn't an element "definition"
+		- 5 : The attributes of the defintion aren't present and/or valid
+		- 6 : The defintion is empty
+		- 7 : The analyze of an xml element that describe a part of the drawing was failed
+		- 8 : No part of the drawing can be loaded
+ */
+CustomElement::CustomElement(ElementLocation &location, QGraphicsItem *parent, int *state) :
+	FixedElement(parent),
+	elmt_state(-1),
+	m_location(location),
+	forbid_antialiasing(false)
+
+{
+	if (!location.isElement())
+	{
+		if (state) *state = 1;
+		elmt_state = 1;
+	}
+
+		//Start from empty lists.
+	list_lines_.clear();
+	list_rectangles_.clear();
+	list_circles_.clear();
+	list_polygons_.clear();
+	list_arcs_.clear();
+
+	buildFromXml(location.xml(), &elmt_state);
+	if (state) *state = elmt_state;
+	if (elmt_state) return;
+
+	if (state) *state = 0;
+	elmt_state = 0;
+}
+
 /**
 	Construit l'element personnalise a partir d'un element XML representant sa
 	definition.

sources/qetgraphicsitem/customelement.h

@@ -20,6 +20,7 @@
 #include "fixedelement.h"
 #include "nameslist.h"
 #include "elementslocation.h"
+#include "elementlocation.h"
 #include <QPicture>
 
 class ElementTextItem;
@@ -30,13 +31,15 @@ class Terminal;
 	element, the difference being that the CustomElement reads its description
 	(names, drawing, behavior) from an XML document.
 */
-class CustomElement : public FixedElement {
-	
+class CustomElement : public FixedElement
+{
 	Q_OBJECT
 	
 		// constructors, destructor
 	public:
-	CustomElement(const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		CustomElement (const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		CustomElement (ElementLocation &location, QGraphicsItem *parent = nullptr, int *state = nullptr);
+
 	virtual ~CustomElement();
 	
 	private:
@@ -47,12 +50,14 @@ class CustomElement : public FixedElement {
 		int elmt_state; // hold the error code in case the instanciation fails, or 0 if everything went well
 		NamesList names;
 		ElementsLocation location_;
+		ElementLocation m_location;
 		QPicture drawing;
 		QPicture low_zoom_drawing;
 		QList<Terminal *> list_terminals;
 		QList<ElementTextItem *> list_texts_;
 		bool forbid_antialiasing;
 
+
 	QList<QLineF *> list_lines_;
 	QList<QRectF *> list_rectangles_;
 	QList<QRectF *> list_circles_;

sources/qetgraphicsitem/masterelement.cpp

@@ -35,6 +35,14 @@ MasterElement::MasterElement(const ElementsLocation &location, QGraphicsItem *qg
 	connect(this, SIGNAL(elementInfoChange(DiagramContext, DiagramContext)), this, SLOT(updateLabel(DiagramContext, DiagramContext)));
 }
 
+MasterElement::MasterElement(ElementLocation &location, QGraphicsItem *parent, int *state) :
+	CustomElement(location, parent, state),
+	cri_ (nullptr)
+{
+	link_type_ = Master;
+	connect(this, SIGNAL(elementInfoChange(DiagramContext, DiagramContext)), this, SLOT(updateLabel(DiagramContext, DiagramContext)));
+}
+
 /**
  * @brief MasterElement::~MasterElement
  * default destructor

sources/qetgraphicsitem/masterelement.h

@@ -34,6 +34,7 @@ class MasterElement : public CustomElement
 	
 	public:
 		explicit MasterElement(const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		explicit MasterElement(ElementLocation &location, QGraphicsItem *parent = nullptr, int *state = nullptr);
 		~MasterElement();
 
 		virtual void linkToElement     (Element *elmt);

sources/qetgraphicsitem/reportelement.cpp

@@ -51,6 +51,34 @@ ReportElement::ReportElement(const ElementsLocation &location, QString link_type
 	}
 }
 
+ReportElement::ReportElement(ElementLocation &location, QString link_type, QGraphicsItem *parent, int *state) :
+	CustomElement(location, parent, state),
+	m_text_field (nullptr),
+	m_watched_conductor (nullptr)
+{
+		/*
+		* Get text tagged label. This is work for report
+		* create after the revision 3559.
+		* for report create before, we take the first text field
+		* because report haven't got a text field tagged label
+		*/
+	m_text_field = taggedText("label");
+	if (!m_text_field && !texts().isEmpty())
+		m_text_field = texts().first();
+	if (m_text_field)
+		m_text_field -> setNoEditable();
+
+	link_type == "next_report"? link_type_=NextReport : link_type_=PreviousReport;
+	link_type == "next_report"? inverse_report=PreviousReport : inverse_report=NextReport;
+
+		//We make these connections, to be always aware about the conductor properties
+	if (terminals().size())
+	{
+		connect (terminals().first(), &Terminal::conductorWasAdded, this, &ReportElement::conductorWasAdded);
+		connect (terminals().first(), &Terminal::conductorWasRemoved, this, &ReportElement::conductorWasRemoved);
+	}
+}
+
 /**
  * @brief ReportElement::~ReportElement
  * Destructor

sources/qetgraphicsitem/reportelement.h

@@ -33,6 +33,7 @@ class ReportElement : public CustomElement
 
 	public :
 		explicit ReportElement(const ElementsLocation &,QString link_type, QGraphicsItem * = 0, int * = 0);
+		explicit ReportElement(ElementLocation &location, QString link_type, QGraphicsItem *parent = nullptr, int *state = nullptr);
 		~ReportElement();
 		virtual void linkToElement(Element *);
 		virtual void unlinkAllElements();

sources/qetgraphicsitem/simpleelement.cpp

@@ -33,6 +33,14 @@ SimpleElement::SimpleElement(const ElementsLocation &location, QGraphicsItem *qg
 	connect(this, SIGNAL(elementInfoChange(DiagramContext, DiagramContext)), this, SLOT(updateLabel(DiagramContext, DiagramContext)));
 }
 
+SimpleElement::SimpleElement(ElementLocation &location, QGraphicsItem *parent, int *state) :
+	CustomElement(location, parent, state),
+	m_comment_item (nullptr)
+{
+	link_type_ = Simple;
+	connect(this, SIGNAL(elementInfoChange(DiagramContext, DiagramContext)), this, SLOT(updateLabel(DiagramContext, DiagramContext)));
+}
+
 /**
  * @brief SimpleElement::~SimpleElement
  */

sources/qetgraphicsitem/simpleelement.h

@@ -33,6 +33,7 @@ class SimpleElement : public CustomElement {
 
 	public  :
 		explicit SimpleElement(const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		explicit SimpleElement(ElementLocation &location, QGraphicsItem *parent = nullptr, int *state = nullptr);
 		~SimpleElement();
 
 		virtual void initLink(QETProject *project);

sources/qetgraphicsitem/slaveelement.cpp

@@ -32,7 +32,14 @@
 SlaveElement::SlaveElement(const ElementsLocation &location, QGraphicsItem *qgi, int *state) :
 	CustomElement(location, qgi, state)
 {
-	Xref_item = NULL;
+	Xref_item = nullptr;
+	link_type_ = Slave;
+}
+
+SlaveElement::SlaveElement(ElementLocation &location, QGraphicsItem *parent, int *state) :
+	CustomElement(location, parent, state)
+{
+	Xref_item = nullptr;
 	link_type_ = Slave;
 }
 

sources/qetgraphicsitem/slaveelement.h

@@ -25,6 +25,7 @@ class SlaveElement : public CustomElement
 	Q_OBJECT
 	public:
 	explicit SlaveElement (const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		explicit SlaveElement(ElementLocation &location, QGraphicsItem *parent = nullptr, int *state = nullptr);
 	~SlaveElement();
 	virtual void linkToElement(Element *elmt);
 	virtual void unlinkAllElements();

sources/qetgraphicsitem/terminalelement.cpp

@@ -31,4 +31,10 @@ TerminalElement::TerminalElement(const ElementsLocation &location, QGraphicsItem
 	link_type_ = Terminale;
 }
 
+TerminalElement::TerminalElement(ElementLocation &location, QGraphicsItem *parent, int *state) :
+	CustomElement(location, parent, state)
+{
+	link_type_ = Terminale;
+}
+
 TerminalElement::~TerminalElement() {}

sources/qetgraphicsitem/terminalelement.h

@@ -25,6 +25,7 @@ class TerminalElement : public CustomElement
 		Q_OBJECT
 	public:
 		TerminalElement(const ElementsLocation &, QGraphicsItem * = 0, int * = 0);
+		TerminalElement (ElementLocation &location, QGraphicsItem *parent = nullptr, int *state = nullptr);
 		~TerminalElement();
 };