Allow exporting of preview to PDF

tikz_editor/controllers/app.py

@@ -62,6 +62,7 @@ def _createActions(self):
 		self.actions[actions.SAVE] = ActionFactory.createAction(self, "Save", "Save the document", QKeySequence.Save, self.save)
 		self.actions[actions.SAVE_ALL] = ActionFactory.createAction(self, "Save All", "Save all documents", None, self.saveAll)
 		self.actions[actions.SAVE_AS] = ActionFactory.createAction(self, "Save As...", "Save the document as...", QKeySequence.SaveAs, self.saveAs)
+		self.actions[actions.EXPORT] = ActionFactory.createAction(self, "Export", "Export document as PDF", None, self.export)
 		self.actions[actions.UNDO] = ActionFactory.createAction(self, "Undo", "Undo last action", QKeySequence.Undo, self.undo)
 
 	def _createMenuBar(self):
@@ -84,6 +85,7 @@ def _createFileMenu(self):
 			self.actions[actions.SAVE],
 			self.actions[actions.SAVE_AS],
 			self.actions[actions.SAVE_ALL],
+			self.actions[actions.EXPORT],
 			None,
 			self.actions[actions.PREVIEW],
 			None,
@@ -274,6 +276,15 @@ def saveAs(self):
 		except Exception as e:
 			Dialogs.showError(e)
 
+	def export(self):
+		try:
+			if self.documentHasFocus():
+				self.focused_document.export()
+			else:
+				QApplication.beep()
+		except Exception as e:
+			Dialogs.showError(e)
+
 	def undo(self):
 		self._doActionOnFocusedWidget("undo")
 

tikz_editor/controllers/document.py

@@ -16,6 +16,8 @@
 from PyQt5.QtCore import *
 
 from tikz_editor.tools import File
+from tikz_editor.tools import TemporaryDirectory
+from tikz_editor.tools.latex2image import Converter
 
 
 class DocumentController(QObject):
@@ -84,6 +86,11 @@ def saveAs(self):
 			self.model.file_path = file_path
 			self.model.save()
 
+	def export(self):
+		file_path = File.showSaveFileDialog(self.view, "%s.pdf" % self.model.title)
+		if file_path:
+			self.model.export(file_path, self.preview_controller.latex2image_converter)
+
 	def _getDocumentFileName(self):
 		file_name = self.model.file_path
 		if not file_name:

tikz_editor/globals/actions.py

@@ -31,6 +31,7 @@
 SAVE = "save"
 SAVE_ALL = "saveAll"
 SAVE_AS = "saveAs"
+EXPORT = "export"
 SHOW_ERRORS = "showErrors"
 SHOW_LOGS = "showLogs"
 SHOW_PREAMBLE = "showPreamble"

tikz_editor/models/document.py

@@ -13,6 +13,8 @@
 # You should have received a copy of the GNU General Public License along
 # with this program. If not, see <http://www.gnu.org/licenses/>.
 
+import shutil
+
 from PyQt5.QtCore import *
 from PyQt5.QtGui import *
 
@@ -76,6 +78,20 @@ def save(self):
 		except Exception as e:
 			raise DocumentError("The document cannot be saved: %s" % str(e))
 
+	def export(self, file_path, converter):
+		"""
+		To export the document as PDF, the source is converted using the
+		latex2image converter.
+		"""
+		try:
+			template = Preferences.getPreviewTemplate()
+			source = documentIO.buildFileContentFromDocument(template, self)
+			converter.convertLatexToImage(source)
+			converter.waitForFinished()
+			shutil.copyfile(converter.pdf_file_path, file_path)
+		except Exception as e:
+			raise DocumentError("The document cannot be exported: %s" % str(e))
+
 	@property
 	def file_path(self):
 		return self._file_path

tikz_editor/tools/latex2image/converter.py

@@ -76,6 +76,10 @@ def _initProcesses(self):
 		self._convert_process.error.connect(self._pdfToImageConversionError)
 		self._convert_process.finished.connect(self._pdfToImageConversionFinished)
 
+	def waitForFinished(self):
+		self._latex_process.waitForFinished()
+		self._convert_process.waitForFinished()
+
 	def stopConversion(self):
 		self._stopping_conversion = True
 		self._killProcesses()