/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (the "License"); you may not use this file except in
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 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#include "nsTextHelper.h"
#include "nsToolkit.h"
#include "nsColor.h"
#include "nsGUIEvent.h"
#include "nsString.h"

#include <Pt.h>
#include "nsPhWidgetLog.h"

NS_METHOD nsTextHelper::PreCreateWidget(nsWidgetInitData *aInitData)
{
  if (nsnull != aInitData)
  {
    nsTextWidgetInitData* data = (nsTextWidgetInitData *) aInitData;
    mIsPassword = data->mIsPassword;
    mIsReadOnly = data->mIsReadOnly;
  }

  return NS_OK;
}

NS_METHOD nsTextHelper::SetMaxTextLength(PRUint32 aChars)
{
  PtArg_t arg[2];
  
  if (mWidget)
  {
    PtSetArg(&arg[0], Pt_ARG_MAX_LENGTH, aChars, 0);
    PtSetResources(mWidget, 1, arg);
  }  

  return NS_OK;
}

NS_METHOD  nsTextHelper::GetText(nsString& aTextBuffer, PRUint32 aBufferSize, PRUint32& aActualSize)
{
 PtArg_t arg[2];
 int length;
 char *string;
    

  if (mWidget)
  {
    PtSetArg(&arg[0], Pt_ARG_TEXT_STRING, &string, 0);
    PtGetResources(mWidget, 1, arg);

	aTextBuffer.SetLength(0);
    aTextBuffer.AppendWithConversion(string);
    aActualSize = aTextBuffer.Length();
  }
  
  return NS_OK;
}

NS_METHOD  nsTextHelper::SetText(const nsString &aText, PRUint32& aActualSize)
{ 
 PtArg_t arg[2];

  mText = aText;

  if (mWidget)
  {
    PtSetArg(&arg[0], Pt_ARG_TEXT_STRING,
             NS_ConvertUCS2toUFT8(aText).get(), 0);
    PtSetResources(mWidget, 1, arg);
  }

  aActualSize = aText.Length();
  return NS_OK;
}

NS_METHOD  nsTextHelper::InsertText(const nsString &aText, PRUint32 aStartPos, PRUint32 aEndPos, PRUint32& aActualSize)
{ 
 PtArg_t   arg[2];
 nsString  currentText;
 PRUint32  currentTextLength;
  if (mWidget)
  {
    PtTextModifyText(mWidget, 0, 0, aStartPos,
                     NS_ConvertUCS2toUTF8(aText).get(),
                     aText.Length());
  }
  aActualSize = aText.Length();

  /* Re-get the text and store in the local variable mText */
  GetText(currentText, 0, currentTextLength);
  mText = currentText;
  
  return NS_OK;
}

NS_METHOD  nsTextHelper::RemoveText()
{
 PtArg_t arg[2];

  mText.SetLength(0);

  if (mWidget)
  {
    PtSetArg(&arg[0], Pt_ARG_TEXT_STRING, "", 0);
    PtSetResources(mWidget, 1, arg);
  }

  return NS_OK;
}

NS_METHOD  nsTextHelper::SetPassword(PRBool aIsPassword)
{
  mIsPassword = aIsPassword;
  return NS_OK;
}

NS_METHOD nsTextHelper::SetReadOnly(PRBool aReadOnlyFlag, PRBool& aOldFlag)
{
 PtArg_t arg[2];
 int	 temp;
 
  aOldFlag = mIsReadOnly;
  mIsReadOnly = aReadOnlyFlag;

  // Update the widget
  if (mWidget)
  {
    if (mIsReadOnly)
        temp = 0;
	else
	    temp = 1;

    PtSetArg(&arg[0], Pt_ARG_TEXT_FLAGS, temp, Pt_EDITABLE);
    PtSetResources(mWidget, 1, arg);
  }

  return NS_OK;
}
  
NS_METHOD nsTextHelper::SelectAll()
{
 int start, end;
 
  if (mWidget)
  {
    start = 0;
	end = SHRT_MAX;
    PtTextSetSelection(mWidget, &start, &end);
  }

  return NS_OK;
}

NS_METHOD  nsTextHelper::SetSelection(PRUint32 aStartSel, PRUint32 aEndSel)
{
/* The text widget is 0 based! */

  if (mWidget)
  {
    int start, end;
    start = aStartSel;
    end = aEndSel;

    PtTextSetSelection(mWidget, &start, &end);
  }

  return NS_OK;
}


NS_METHOD  nsTextHelper::GetSelection(PRUint32 *aStartSel, PRUint32 *aEndSel)
{
/*revisit not sure if this is 1 or 0 based! */

  if (mWidget)
  {
    int start, end;
	
    PtTextGetSelection(mWidget, &start, &end);

    *aStartSel = start;
    *aEndSel = end;	
	
  }

  return NS_OK;
}

NS_METHOD  nsTextHelper::SetCaretPosition(PRUint32 aPosition)
{
 PtArg_t arg[2];

  if (mWidget)
  {
    short CursPos = aPosition;
	
    PtSetArg(&arg[0], Pt_ARG_CURSOR_POSITION, CursPos, 0);
    PtSetResources(mWidget, 1, arg);
  }

  return NS_OK;
}

NS_METHOD  nsTextHelper::GetCaretPosition(PRUint32& aPos)
{
 PtArg_t arg[2];
 short *CaretPosition;
 
  if (mWidget)
  {
    PtSetArg(&arg[0], Pt_ARG_CURSOR_POSITION, &CaretPosition, 0);
    PtGetResources(mWidget, 1, arg);
  }

  aPos = PRUint32(*CaretPosition);
  
  return NS_OK;
}

//-------------------------------------------------------------------------
//
// nsTextHelper constructor
//
//-------------------------------------------------------------------------

nsTextHelper::nsTextHelper() : nsWidget(), nsITextWidget()
{
  mIsReadOnly = PR_FALSE;
  mIsPassword = PR_FALSE;
}

//-------------------------------------------------------------------------
//
// nsTextHelper destructor
//
//-------------------------------------------------------------------------
nsTextHelper::~nsTextHelper()
{
}