frontend/lineedit.cpp

   1 // lineedit.cpp
   2
   3 // Copyright (C) 2012 by Werner Lemberg.
   4 //
   5 // This file is part of the ttfautohint library, and may only be used,
   6 // modified, and distributed under the terms given in `COPYING'.  By
   7 // continuing to use, modify, or distribute this file you indicate that you
   8 // have read `COPYING' and understand and accept it fully.
   9 //
  10 // The file `COPYING' mentioned in the previous paragraph is distributed
  11 // with the ttfautohint library.
  12
  13
  14 // Derived class `Line_Edit' is QLineEdit which accepts drag and drop.
  15
  16 #include <config.h>
  17
  18 #include "lineedit.h"
  19
  20 Line_Edit::Line_Edit(QWidget* parent)
  21 : QLineEdit(parent)
  22 {
  23   // empty
  24 }
  25
  26
  27 // XXX: There are no standardized MIME types for TTFs and TTCs
  28 //      which work everywhere.  So we rely on the extension.
  29
  30 void
  31 Line_Edit::dragEnterEvent(QDragEnterEvent* event)
  32 {
  33   QList<QUrl> url_list;
  34   QString file_name;
  35
  36   if (event->mimeData()->hasUrls())
  37   {
  38     url_list = event->mimeData()->urls();
  39
  40     // if just text was dropped, url_list is empty
  41     if (url_list.size())
  42     {
  43       file_name = url_list[0].toLocalFile();
  44
  45       if (file_name.endsWith(".ttf")
  46           || file_name.endsWith(".TTF")
  47           || file_name.endsWith(".ttc")
  48           || file_name.endsWith(".TTC"))
  49         event->acceptProposedAction();
  50     }
  51   }
  52 }
  53
  54
  55 void
  56 Line_Edit::dropEvent(QDropEvent* event)
  57 {
  58   QList<QUrl> url_list;
  59   QString file_name;
  60   QFileInfo info;
  61
  62   if (event->mimeData()->hasUrls())
  63   {
  64     url_list = event->mimeData()->urls();
  65
  66     // if just text was dropped, url_list is empty
  67     if (url_list.size())
  68     {
  69       file_name = url_list[0].toLocalFile();
  70
  71       // check whether `file_name' is valid
  72       info.setFile(file_name);
  73       if (info.isFile())
  74         setText(file_name);
  75     }
  76   }
  77
  78   event->acceptProposedAction();
  79 }
  80
  81 // end of lineedit.cpp