[qet] [1861] Dropping a file onto a main window now opens that file.

[subversion@xxxxxxxxxxxxx]

Revision: 1861
Author:   xavier
Date:     2012-05-24 19:27:15 +0200 (Thu, 24 May 2012)
Log Message:
-----------
Dropping a file onto a main window now opens that file.

Modified Paths:
--------------
    trunk/sources/qetapp.cpp
    trunk/sources/qetapp.h
    trunk/sources/qetmainwindow.cpp
    trunk/sources/qetmainwindow.h

Modified: trunk/sources/qetapp.cpp
===================================================================
--- trunk/sources/qetapp.cpp	2012-05-20 16:42:45 UTC (rev 1860)
+++ trunk/sources/qetapp.cpp	2012-05-24 17:27:15 UTC (rev 1861)
@@ -527,6 +527,38 @@
 }
 
 /**
+	@return the list of file extensions QElectroTech is able to open and
+	supposed to handle. Note they are provided with no leading point.
+*/
+QStringList QETApp::handledFileExtensions() {
+	static QStringList ext;
+	if (!ext.count()) {
+		ext << "qet";
+		ext << "elmt";
+		ext << QString(TITLEBLOCKS_FILE_EXTENSION).remove(QRegExp("^\."));
+	}
+	return(ext);
+}
+
+/**
+	@param an URLs list
+	@return the list of filepaths QElectroTech is able to open.
+*/
+QStringList QETApp::handledFiles(const QList<QUrl> &urls) {
+	QList<QString> filepaths;
+	foreach (QUrl url, urls) {
+		if (!url.isLocalFile()) continue;
+		QString local_path = url.toLocalFile();
+		QFileInfo local_path_info(local_path);
+		QString local_path_ext = local_path_info.completeSuffix();
+		if (handledFileExtensions().contains(local_path_ext)) {
+			filepaths << local_path;
+		}
+	}
+	return(filepaths);
+}
+
+/**
 	@param filepath Un chemin de fichier
 	Note : si filepath est une chaine vide, cette methode retourne 0.
 	@return le QETDiagramEditor editant le fichier filepath, ou 0 si ce fichier

Modified: trunk/sources/qetapp.h
===================================================================
--- trunk/sources/qetapp.h	2012-05-20 16:42:45 UTC (rev 1860)
+++ trunk/sources/qetapp.h	2012-05-24 17:27:15 UTC (rev 1861)
@@ -95,6 +95,8 @@
 	static QString languagesPath();
 	static QString realPath(const QString &);
 	static QString symbolicPath(const QString &);
+	static QStringList handledFileExtensions();
+	static QStringList handledFiles(const QList<QUrl> &);
 	static RecentFiles *projectsRecentFiles();
 	static RecentFiles *elementsRecentFiles();
 #ifdef QET_ALLOW_OVERRIDE_CED_OPTION

Modified: trunk/sources/qetmainwindow.cpp
===================================================================
--- trunk/sources/qetmainwindow.cpp	2012-05-20 16:42:45 UTC (rev 1860)
+++ trunk/sources/qetmainwindow.cpp	2012-05-24 17:27:15 UTC (rev 1861)
@@ -29,6 +29,8 @@
 {
 	initCommonActions();
 	initCommonMenus();
+	
+	setAcceptDrops(true);
 }
 
 /**
@@ -162,3 +164,31 @@
 */
 void QETMainWindow::firstActivation(QEvent *) {
 }
+
+
+/**
+	Accept or refuse drag'n drop events depending on the dropped mime type;
+	especially, accepts only URLs to local files that we could open.
+	@param e le QDragEnterEvent correspondant au drag'n drop tente
+*/
+void QETMainWindow::dragEnterEvent(QDragEnterEvent *e) {
+	if (e -> mimeData() -> hasUrls()) {
+		if (QETApp::handledFiles(e -> mimeData() -> urls()).count()) {
+			e -> acceptProposedAction();
+		}
+	}
+}
+
+/**
+	Handle drops accepted on main windows; more specifically, open dropped files
+	as long as they are handled by QElectrotech.
+	@param e the QDropEvent describing the current drag'n drop
+*/
+void QETMainWindow::dropEvent(QDropEvent *e) {
+	if (e -> mimeData() -> hasUrls()) {
+		QStringList filepaths = QETApp::handledFiles(e -> mimeData() -> urls());
+		if (filepaths.count()) {
+			QETApp::instance() -> openFiles(QETArguments(filepaths));
+		}
+	}
+}

Modified: trunk/sources/qetmainwindow.h
===================================================================
--- trunk/sources/qetmainwindow.h	2012-05-20 16:42:45 UTC (rev 1860)
+++ trunk/sources/qetmainwindow.h	2012-05-24 17:27:15 UTC (rev 1861)
@@ -40,6 +40,8 @@
 	
 	protected:
 	virtual bool event(QEvent *);
+	virtual void dragEnterEvent(QDragEnterEvent *e);
+	virtual void dropEvent(QDropEvent *e);
 	virtual void firstActivation(QEvent *);
 	
 	// slots