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