frontend/ddlineedit.cpp

   1 // ddlineedit.cpp
   2
   3 // Copyright (C) 2012-2022 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 `Drag_Drop_Line_Edit' is Tooltip_Line_Edit
  15 // that accepts drag and drop.
  16
  17 #include <config.h>
  18
  19 #include "ddlineedit.h"
  20
  21 Drag_Drop_Line_Edit::Drag_Drop_Line_Edit(Drag_Drop_File_Type ft,
  22                                          QWidget* parent)
  23 : Tooltip_Line_Edit(parent),
  24   file_type(ft)
  25 {
  26   // empty
  27 }
  28
  29
  30 // XXX: There are no standardized MIME types for TTFs and TTCs
  31 //      that work everywhere.  So we rely on the extension.
  32
  33 void
  34 Drag_Drop_Line_Edit::dragEnterEvent(QDragEnterEvent* event)
  35 {
  36   QList<QUrl> url_list;
  37   QString file_name;
  38
  39   if (event->mimeData()->hasUrls())
  40   {
  41     url_list = event->mimeData()->urls();
  42
  43     // if just text was dropped, url_list is empty
  44     if (url_list.size())
  45     {
  46       file_name = url_list[0].toLocalFile();
  47
  48       switch (file_type)
  49       {
  50       case DRAG_DROP_TRUETYPE:
  51         if (file_name.endsWith(".ttf")
  52             || file_name.endsWith(".TTF")
  53             || file_name.endsWith(".ttc")
  54             || file_name.endsWith(".TTC"))
  55           event->acceptProposedAction();
  56         break;
  57
  58       case DRAG_DROP_ANY:
  59         event->acceptProposedAction();
  60         break;
  61       }
  62     }
  63   }
  64 }
  65
  66
  67 void
  68 Drag_Drop_Line_Edit::dropEvent(QDropEvent* event)
  69 {
  70   QList<QUrl> url_list;
  71   QString file_name;
  72   QFileInfo info;
  73
  74   if (event->mimeData()->hasUrls())
  75   {
  76     url_list = event->mimeData()->urls();
  77
  78     // if just text was dropped, url_list is empty
  79     if (url_list.size())
  80     {
  81       file_name = url_list[0].toLocalFile();
  82
  83       // check whether `file_name' is valid
  84       info.setFile(file_name);
  85       if (info.isFile())
  86         setText(file_name);
  87     }
  88   }
  89
  90   event->acceptProposedAction();
  91 }
  92
  93 // end of ddlineedit.cpp