workbench/classes/zune/texteditor/mcc/CaseConversion.c

   1 /***************************************************************************
   2
   3  TextEditor.mcc - Textediting MUI Custom Class
   4  Copyright (C) 1997-2000 Allan Odgaard
   5  Copyright (C) 2005-2014 TextEditor.mcc Open Source Team
   6
   7  This library is free software; you can redistribute it and/or
   8  modify it under the terms of the GNU Lesser General Public
   9  License as published by the Free Software Foundation; either
  10  version 2.1 of the License, or (at your option) any later version.
  11
  12  This library is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  Lesser General Public License for more details.
  16
  17  TextEditor class Support Site:  http://www.sf.net/projects/texteditor-mcc
  18
  19  $Id$
  20
  21 ***************************************************************************/
  22
  23 #include <proto/utility.h>
  24
  25 #include "private.h"
  26 #include "Debug.h"
  27
  28 /// MangleCharacters()
  29 static void MangleCharacters(struct InstData *data, char (*change)(char c))
  30 {
  31   LONG startx;
  32   LONG stopx;
  33   LONG _startx;
  34   struct line_node *startline;
  35   struct line_node *stopline;
  36   struct line_node *_startline;
  37   struct marking newblock;
  38
  39   ENTER();
  40
  41   if(Enabled(data))
  42   {
  43     NiceBlock(&data->blockinfo, &newblock);
  44     startx    = newblock.startx;
  45     stopx     = newblock.stopx;
  46     startline = newblock.startline;
  47     stopline  = newblock.stopline;
  48   }
  49   else
  50   {
  51     startx    = data->CPos_X;
  52     stopx     = startx+1;
  53     startline = data->actualline;
  54     stopline  = startline;
  55
  56     newblock.enabled   = FALSE;
  57     newblock.startline = startline;
  58     newblock.stopline  = stopline;
  59     newblock.startx    = startx;
  60     newblock.stopx     = stopx;
  61   }
  62
  63   AddToUndoBuffer(data, ET_DELETEBLOCK, &newblock);
  64   AddToUndoBuffer(data, ET_PASTEBLOCK, &newblock);
  65
  66   _startx = startx;
  67   _startline = startline;
  68
  69   while(startline != GetNextLine(stopline))
  70   {
  71     while(startline->line.Contents[startx] != '\n')
  72     {
  73       if(startx == stopx && startline == stopline)
  74         break;
  75
  76       startline->line.Contents[startx] = change(startline->line.Contents[startx]);
  77
  78       startx++;
  79     }
  80     startx = 0;
  81     startline = GetNextLine(startline);
  82   }
  83
  84   data->HasChanged = TRUE;
  85   RedrawArea(data, _startx, _startline, stopx, stopline);
  86
  87   LEAVE();
  88 }
  89
  90 ///
  91 /// ChangeToUpper()
  92 static char ChangeToUpper(char c)
  93 {
  94   return ToUpper(c);
  95 }
  96
  97 ///
  98 /// Key_ToUpper()
  99 void Key_ToUpper(struct InstData *data)
 100 {
 101   MangleCharacters(data, ChangeToUpper);
 102 }
 103
 104 ///
 105 /// ChangeToLower()
 106 static char ChangeToLower(char c)
 107 {
 108   return ToLower(c);
 109 }
 110
 111 ///
 112 /// Key_ToLower()
 113 void Key_ToLower(struct InstData *data)
 114 {
 115   MangleCharacters(data, ChangeToLower);
 116 }
 117
 118 ///