article_dialog.py

   1 # BiaWeb Website content manager (c) 2010 V.Harishankar
   2 # Article dialog class
   3
   4 import PyQt4
   5 import ui_article_dialog
   6 import highlighter
   7
   8 class ArticleDialog (PyQt4.QtGui.QDialog, ui_article_dialog.Ui_ArticleDialog):
   9         def __init__ (self, parent):
  10                 PyQt4.QtGui.QDialog.__init__ (self, parent)
  11                 self.setupUi (self)
  12                 # set window to be able to be maximized or minimized
  13                 self.setWindowFlags (PyQt4.QtCore.Qt.Window)
  14                 # set the code highlighter to the document
  15                 self.hltext = highlighter.SimpleHtmlHighlighter (self.content.document ())
  16
  17         # when rejected, confirm first
  18         def reject (self):
  19                 ans = PyQt4.QtGui.QMessageBox.question (self, "Confirm",
  20                                         "Are you sure you wish to cancel all changes?",
  21                                         PyQt4.QtGui.QMessageBox.Yes, PyQt4.QtGui.QMessageBox.No)
  22                 if ans == PyQt4.QtGui.QMessageBox.Yes:
  23                         PyQt4.QtGui.QDialog.reject (self)
  24
  25         # when accepted check the data
  26         def accept (self):
  27                 title = str (self.article_title.text ()).strip ()
  28                 content = str (self.content.toPlainText ()).strip ()
  29                 stub = str (self.stub.text ()).strip ()
  30
  31                 if title <> "" and content <> "" and stub <> "":
  32                         PyQt4.QtGui.QDialog.accept (self)
  33                 else:
  34                         PyQt4.QtGui.QMessageBox.critical (self, "Missing fields", "Some required fields are missing")
  35
  36         # populate categories in combo box
  37         def populate_categories (self, category_list, selected_cat = None):
  38                 for catid, catname, catdesc, stub in category_list:
  39                         self.category.addItem (catname, int (catid))
  40
  41                 # set the index to the selected category item
  42                 if selected_cat is not None:
  43                         self.category.setCurrentIndex (self.category.findData (selected_cat))
  44
  45         # when bold is clicked
  46         def onBold (self):
  47                 textcur = self.content.textCursor ()
  48                 sel = textcur.selectedText ()
  49                 boldsel = "<b>" + sel + "</b>"
  50                 textcur.insertText (boldsel)
  51
  52         # when block quote is clicked
  53         def onBQuote (self):
  54                 textcur = self.content.textCursor ()
  55                 sel = textcur.selectedText ()
  56                 quotesel = "<blockquote>\n" + sel + "\n</blockquote>"
  57                 textcur.insertText (quotesel)
  58
  59         # when bullet is clicked
  60         def onBullet (self):
  61                 # insert bulleted list
  62                 self.insert_list_items ()
  63
  64         # when code is clicked
  65         def onCode (self):
  66                 textcur = self.content.textCursor ()
  67                 sel = textcur.selectedText ()
  68                 codesel = "<code>" + str (sel) + "</code>"
  69                 textcur.insertText (codesel)
  70
  71         # when horiz rule is clicked
  72         def onHRule (self):
  73                 textcur = self.content.textCursor ()
  74                 hrule = "\n<hr />\n"
  75                 textcur.clearSelection ()
  76                 textcur.insertText (hrule)
  77
  78         # when image is clicked
  79         def onImage (self):
  80                 img_url, ok = PyQt4.QtGui.QInputDialog.getText (self, "Image URL", "URL of the image to insert")
  81                 if not ok or img_url.isEmpty ():
  82                         return
  83                 alt_txt, ok = PyQt4.QtGui.QInputDialog.getText (self, "Alt text", "Alternate text of the image")
  84                 if not ok or alt_txt.isEmpty ():
  85                         return
  86
  87                 textcur = self.content.textCursor ()
  88                 imgtag = '<img src="' + img_url + '" alt="' + alt_txt + '" />'
  89                 textcur.clearSelection ()
  90                 textcur.insertText (imgtag)
  91
  92         # when italic is clicked
  93         def onItalic (self):
  94                 textcur = self.content.textCursor ()
  95                 sel = textcur.selectedText ()
  96                 italsel = "<i>" + sel + "</i>"
  97                 textcur.insertText (italsel)
  98
  99         # when link is clicked
 100         def onLink (self):
 101                 linkhref, ok = PyQt4.QtGui.QInputDialog.getText (self, "Link URL", "URL of the link to insert")
 102                 if not ok or linkhref.isEmpty ():
 103                         return
 104                 textcur = self.content.textCursor ()
 105                 sel = textcur.selectedText ()
 106                 linksel = '<a href="' + linkhref + '">' + sel + "</a>"
 107                 textcur.insertText (linksel)
 108
 109         # when numbered is clicked
 110         def onNumber (self):
 111                 # numbered list
 112                 self.insert_list_items (True)
 113
 114         # get a list of items in numbered or bulleted list
 115         def insert_list_items (self, numbered = False):
 116                 if numbered:
 117                         title = "Numbered list"
 118                         otag = "\n<ol>\n"
 119                         ctag = "</ol>\n"
 120                 else:
 121                         title = "Bulleted list"
 122                         otag = "\n<ul>\n"
 123                         ctag = "</ul>\n"
 124
 125                 itemlist = [ otag ]
 126                 while True:
 127                         num_item, ok = PyQt4.QtGui.QInputDialog.getText (self, title,
 128                                                         "List item content (leave blank to finish the list)")
 129                         # if cancelled quit
 130                         if not ok:
 131                                 return
 132                         # if item is empty then close the list
 133                         if num_item.isEmpty ():
 134                                 break
 135                         itemlist.append ("   <li>" + num_item + "</li>\n")
 136                 itemlist.append (ctag)
 137
 138                 textcur = self.content.textCursor ()
 139                 textcur.clearSelection ()
 140                 for item in itemlist:
 141                         textcur.insertText (item)
 142
 143
 144         # when center is clicked
 145         def onCenter (self):
 146                 textcur = self.content.textCursor ()
 147                 sel = textcur.selectedText ()
 148                 paracentersel = '<p style="text-align:center;">' + sel + "</p>"
 149                 textcur.insertText (paracentersel)
 150
 151         # when justify is clicked
 152         def onJustify (self):
 153                 textcur = self.content.textCursor ()
 154                 sel = textcur.selectedText ()
 155                 parajustsel = '<p style="text-align:justify;">' + sel + "</p>"
 156                 textcur.insertText (parajustsel)
 157
 158         # when left is clicked
 159         def onLeft (self):
 160                 textcur = self.content.textCursor ()
 161                 sel = textcur.selectedText ()
 162                 paraleftsel = '<p style="text-align:left;">' + sel + "</p>"
 163                 textcur.insertText (paraleftsel)
 164
 165         # when right is clicked
 166         def onRight (self):
 167                 textcur = self.content.textCursor ()
 168                 sel = textcur.selectedText ()
 169                 pararightsel = '<p style="text-align:right;">' + sel + "</p>"
 170                 textcur.insertText (pararightsel)
 171
 172         # when pre is clicked
 173         def onPre (self):
 174                 textcur = self.content.textCursor ()
 175                 sel = textcur.selectedText ()
 176                 presel = "<pre>" + sel + "</pre>"
 177                 textcur.insertText (presel)
 178
 179         # when para is clicked
 180         def onPara (self):
 181                 textcur = self.content.textCursor ()
 182                 sel = textcur.selectedText ()
 183                 parasel = "<p>" + sel + "</p>"
 184                 textcur.insertText (parasel)
 185
 186         # when table is clicked
 187         def onTable (self):
 188                 # get the number of rows
 189                 rows, ok = PyQt4.QtGui.QInputDialog.getInt (self, "Table", "Number of table rows")
 190                 if not ok:
 191                         return
 192                 # get the number of columns
 193                 cols, ok = PyQt4.QtGui.QInputDialog.getInt (self, "Table", "Number of table columns")
 194                 if not ok:
 195                         return
 196                 # should there be a header row?
 197                 headerflag = PyQt4.QtGui.QMessageBox.question (self, "Header", "Do you want additional header row?",
 198                                                                                                         PyQt4.QtGui.QMessageBox.Yes, PyQt4.QtGui.QMessageBox.No,
 199                                                                                                         PyQt4.QtGui.QMessageBox.Cancel)
 200                 if headerflag == PyQt4.QtGui.QMessageBox.Cancel:
 201                         return
 202
 203                 # build the table tag
 204                 tablelist = ["\n<table>\n"]
 205                 if headerflag == PyQt4.QtGui.QMessageBox.Yes:
 206                         tablelist.append (" <thead>\n")
 207                         tablelist.append ("  <tr>\n")
 208                         for i in range (cols):
 209                                 tablelist.append ("   <th></th>\n")
 210                         tablelist.append ("  </tr>\n")
 211                         tablelist.append (" </thead>\n")
 212
 213                 tablelist.append (" <tbody>\n")
 214                 for j in range (rows):
 215                         tablelist.append ("  <tr>\n")
 216                         for i in range (cols):
 217                                 tablelist.append ("   <td></td>\n")
 218                         tablelist.append ("  </tr>\n")
 219                 tablelist.append (" </tbody>\n")
 220                 tablelist.append ("</table>\n")
 221
 222                 # insert the table
 223                 textcur = self.content.textCursor ()
 224                 textcur.clearSelection ()
 225                 for item in tablelist:
 226                         textcur.insertText (item)
 227
 228
 229
 230         # when break is clicked
 231         def onBreak (self):
 232                 textcur = self.content.textCursor ()
 233                 breaktxt = "<br />\n"
 234                 textcur.clearSelection ()
 235                 textcur.insertText (breaktxt)