src/apps/haikudepot/edits_generic/UndoableEdit.cpp

   1 /*
   2  * Copyright 2006-2012, Stephan Aßmus <superstippi@gmx.de>
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 #include "UndoableEdit.h"
   7
   8 #include <stdio.h>
   9
  10 #include <OS.h>
  11 #include <String.h>
  12
  13
  14 //static int32 sInstanceCount = 0;
  15
  16
  17 UndoableEdit::UndoableEdit()
  18         :
  19         fTimeStamp(system_time())
  20 {
  21 //      sInstanceCount++;
  22 //      printf("UndoableEdits: %ld\n", sInstanceCount);
  23 }
  24
  25
  26 UndoableEdit::~UndoableEdit()
  27 {
  28 //      sInstanceCount--;
  29 //      printf("UndoableEdits: %ld\n", sInstanceCount);
  30 }
  31
  32
  33 status_t
  34 UndoableEdit::InitCheck()
  35 {
  36         return B_NO_INIT;
  37 }
  38
  39
  40 status_t
  41 UndoableEdit::Perform(EditContext& context)
  42 {
  43         return B_ERROR;
  44 }
  45
  46
  47 status_t
  48 UndoableEdit::Undo(EditContext& context)
  49 {
  50         return B_ERROR;
  51 }
  52
  53
  54 status_t
  55 UndoableEdit::Redo(EditContext& context)
  56 {
  57         return Perform(context);
  58 }
  59
  60
  61 void
  62 UndoableEdit::GetName(BString& name)
  63 {
  64         name << "Name of edit goes here.";
  65 }
  66
  67
  68 bool
  69 UndoableEdit::UndoesPrevious(const UndoableEdit* previous)
  70 {
  71         return false;
  72 }
  73
  74
  75 bool
  76 UndoableEdit::CombineWithNext(const UndoableEdit* next)
  77 {
  78         return false;
  79 }
  80
  81
  82 bool
  83 UndoableEdit::CombineWithPrevious(const UndoableEdit* previous)
  84 {
  85         return false;
  86 }