Pull preview_list_widget out into separate file. Not yet changed calls to this new class.

openlp/core/ui/listpreviewwidget.py

@@ -0,0 +1,174 @@
+# -*- coding: utf-8 -*-
+# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
+
+###############################################################################
+# OpenLP - Open Source Lyrics Projection                                      #
+# --------------------------------------------------------------------------- #
+# Copyright (c) 2008-2013 Raoul Snyman                                        #
+# Portions copyright (c) 2008-2013 Tim Bentley, Gerald Britton, Jonathan      #
+# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub,      #
+# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer.   #
+# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru,          #
+# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith,             #
+# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock,              #
+# Frode Woldsund, Martin Zibricky, Patrick Zimmermann                         #
+# --------------------------------------------------------------------------- #
+# This program is free software; you can redistribute it and/or modify it     #
+# under the terms of the GNU General Public License as published by the Free  #
+# Software Foundation; version 2 of the License.                              #
+#                                                                             #
+# This program is distributed in the hope that it will be useful, but WITHOUT #
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       #
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for    #
+# more details.                                                               #
+#                                                                             #
+# You should have received a copy of the GNU General Public License along     #
+# with this program; if not, write to the Free Software Foundation, Inc., 59  #
+# Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
+###############################################################################
+"""
+The :mod:`slidecontroller` module contains the most important part of OpenLP - the slide controller
+"""
+
+from PyQt4 import QtCore, QtGui
+
+from openlp.core.lib import ImageSource, Registry, ServiceItem
+
+class ListPreviewWidget(object):
+    def __init__(self, parent, is_live):
+        # Controller list view
+        self.is_live = is_live
+        self.preview_table_widget = QtGui.QTableWidget(parent)
+        self.preview_table_widget.setColumnCount(1)
+        self.preview_table_widget.horizontalHeader().setVisible(False)
+        self.preview_table_widget.setColumnWidth(0, parent.width())
+        self.preview_table_widget.setObjectName(u'preview_table_widget')
+        self.preview_table_widget.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
+        self.preview_table_widget.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
+        self.preview_table_widget.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
+        self.preview_table_widget.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.preview_table_widget.setAlternatingRowColors(True)
+        self.service_item = ServiceItem()
+        self.clicked = QtCore.pyqtSignal()
+        self.double_clicked = QtCore.pyqtSignal()
+        if not self.is_live:
+            self.preview_table_widget.doubleClicked.connect(self.double_clicked)
+        self.preview_table_widget.clicked.connect(self.clicked)
+
+    def clicked(self):
+        self.clicked.emit()
+
+    def double_clicked(self):
+        self.double_clicked.emit()
+
+    def get_preview_widget(self):
+        return self.preview_table_widget
+
+    def set_active(self, active):
+        if active:
+            self.preview_table_widget.show()
+        else:
+            self.preview_table_widget.hide()
+
+    def replace_service_manager_item(self, service_item, width):
+        self.service_item = service_item
+        self._refresh(width)
+
+    def preview_size_changed(self, width, ratio):
+        """
+        Takes care of the SlidePreview's size. Is called when one of the the
+        splitters is moved or when the screen size is changed. Note, that this
+        method is (also) called frequently from the mainwindow *paintEvent*.
+        """
+        self.preview_table_widget.setColumnWidth(0, self.preview_table_widget.viewport().size().width())
+        if self.service_item:
+            # Sort out songs, bibles, etc.
+            if self.service_item.is_text():
+                self.preview_table_widget.resizeRowsToContents()
+            else:
+                # Sort out image heights.
+                for framenumber in range(len(self.service_item.get_frames())):
+                    self.preview_table_widget.setRowHeight(framenumber, width / ratio)
+
+    def _refresh(self, width, ratio):
+        """
+        Loads a ServiceItem into the system from ServiceManager
+        Display the slide number passed
+        """
+        self.preview_table_widget.clear()
+        self.preview_table_widget.setRowCount(0)
+        self.preview_table_widget.setColumnWidth(0, width)
+        row = 0
+        text = []
+        for framenumber, frame in enumerate(self.service_item.get_frames()):
+            self.preview_table_widget.setRowCount(self.preview_table_widget.rowCount() + 1)
+            item = QtGui.QTableWidgetItem()
+            slideHeight = 0
+            if self.service_item.is_text():
+                if frame[u'verseTag']:
+                    # These tags are already translated.
+                    verse_def = frame[u'verseTag']
+                    verse_def = u'%s%s' % (verse_def[0], verse_def[1:])
+                    two_line_def = u'%s\n%s' % (verse_def[0], verse_def[1:])
+                    row = two_line_def
+                else:
+                    row += 1
+                item.setText(frame[u'text'])
+            else:
+                label = QtGui.QLabel()
+                label.setMargin(4)
+                if self.service_item.is_media():
+                    label.setAlignment(QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter)
+                else:
+                    label.setScaledContents(True)
+                self.preview_table_widget.setCellWidget(framenumber, 0, label)
+                slideHeight = width / ratio
+                row += 1
+            text.append(unicode(row))
+            self.preview_table_widget.setItem(framenumber, 0, item)
+            if slideHeight:
+                self.preview_table_widget.setRowHeight(framenumber, slideHeight)
+        self.preview_table_widget.setVerticalHeaderLabels(text)
+        if self.service_item.is_text():
+            self.preview_table_widget.resizeRowsToContents()
+        self.preview_table_widget.setColumnWidth(0, self.preview_table_widget.viewport().size().width())
+        #stuff happens here, perhaps the setFocus has to happen later...
+        self.preview_table_widget.setFocus()
+
+    def __updatePreviewSelection(self, slideno):
+        """
+        Utility method to update the selected slide in the list.
+        """
+        if slideno > self.preview_table_widget.rowCount():
+            self.preview_table_widget.selectRow(
+                self.preview_table_widget.rowCount() - 1)
+        else:
+            self.__checkUpdateSelectedSlide(slideno)
+
+    def __checkUpdateSelectedSlide(self, row):
+        """
+        Check if this slide has been updated
+        """
+        if row + 1 < self.preview_table_widget.rowCount():
+            self.preview_table_widget.scrollToItem(self.preview_table_widget.item(row + 1, 0))
+        self.preview_table_widget.selectRow(row)
+
+    def _get_image_manager(self):
+        """
+        Adds the image manager to the class dynamically
+        """
+        if not hasattr(self, u'_image_manager'):
+            self._image_manager = Registry().get(u'image_manager')
+        return self._image_manager
+
+    image_manager = property(_get_image_manager)
+
+    def _get_main_window(self):
+        """
+        Adds the main window to the class dynamically
+        """
+        if not hasattr(self, u'_main_window'):
+            self._main_window = Registry().get(u'main_window')
+        return self._main_window
+
+    main_window = property(_get_main_window)