//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop

#include "Rights.h"
#include "NonVisual.h"

#include <Common.h>

#include <VCLCommon.h>
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
//---------------------------------------------------------------------------
__fastcall TRightsFrame::TRightsFrame(TComponent* Owner)
        : TFrame(Owner)
{
  FOnChange = NULL;
  FAllowAddXToDirectories = true;
}
//---------------------------------------------------------------------------
__fastcall TRightsFrame::~TRightsFrame()
{
  if (NonVisualDataModule->RightsFrame == this)
  {
    NonVisualDataModule->RightsFrame = NULL;
  }
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::SetStates(TRightsFlag Flag, TRightState value)
{
  assert(((value == rsNo) || (value == rsYes) || (value == rsUndef)));
  TCheckBox *CheckBox = Checks[(TRightsFlag)Flag];
  switch (value) {
    case rsNo: CheckBox->State = cbUnchecked; break;
    case rsYes: CheckBox->State = cbChecked; break;
    case rsUndef: CheckBox->State = cbGrayed; break;
  }
}
//---------------------------------------------------------------------------
TRightState __fastcall TRightsFrame::GetStates(TRightsFlag Flag)
{
  switch (Checks[(TRightsFlag)Flag]->State) {
    case cbUnchecked: return rsNo;
    case cbChecked: return rsYes;
    case cbGrayed:
    default: return rsUndef;
  }
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::SetRights(TRights value)
{
  AllowUndef = true; // temporarily
  for (int Flag = 0; Flag < RightsFlagCount; Flag++)
  {
    States[(TRightsFlag)Flag] = value.RightUndef[(TRightsFlag)Flag];
  }
  AllowUndef = value.AllowUndef;
  UpdateControls();
}
//---------------------------------------------------------------------------
TRights __fastcall TRightsFrame::GetRights()
{
  TRights Result;
  Result.AllowUndef = AllowUndef;
  for (int Flag = 0; Flag < RightsFlagCount; Flag++)
  {
    Result.RightUndef[(TRightsFlag)Flag] = States[(TRightsFlag)Flag];
  }
  return Result;
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::SetAllowUndef(bool value)
{
  for (int Index = 0; Index < CheckCount; Index++)
  {
    Checks[(TRightsFlag)Index]->AllowGrayed = value;
  }
}
//---------------------------------------------------------------------------
bool __fastcall TRightsFrame::GetAllowUndef()
{
  bool Result = false, First = true;
  for (int Index = 0; Index < CheckCount; Index++)
  {
    TCheckBox *Check = Checks[(TRightsFlag)Index];
    if (First)
    {
      Result = Check->AllowGrayed;
      First = false;
    }
    else if (Result != Check->AllowGrayed)
    {
      throw Exception("AllowGrayed property of all checkboxes of TRightsFrame don't have same value");
    }
  }
  return Result;
}
//---------------------------------------------------------------------------
TCheckBox * __fastcall TRightsFrame::GetChecks(TRightsFlag Flag)
{
  assert((Flag >= 0) && (Flag < RightsFlagCount));
  for (int Index = 0; Index < ControlCount; Index++)
  {
    if (Controls[Index]->InheritsFrom(__classid(TCheckBox)) &&
        ((Controls[Index]->Tag - 1) == Flag))
    {
      return ((TCheckBox *)Controls[Index]);
    }
  }
  assert(false);
  return NULL;
}
//---------------------------------------------------------------------------
int __fastcall TRightsFrame::GetCheckCount()
{
  return RightsFlagCount;
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::SetAddXToDirectories(bool value)
{
  DirectoriesXCheck->Checked = value;
}
//---------------------------------------------------------------------------
bool __fastcall TRightsFrame::GetAddXToDirectories()
{
  return DirectoriesXCheck->Checked;
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::ControlChange(TObject * /*Sender*/)
{
  UpdateControls();
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::UpdateControls()
{
  TRights R = Rights;
  DirectoriesXCheck->Visible = AllowAddXToDirectories;
  EnableControl(DirectoriesXCheck,
    Enabled && !((R.NumberSet & raExecute) == raExecute));
    
  if (!OctalEdit->Focused())
  {
    OctalEdit->Text = R.IsUndef ? AnsiString() : R.Octal;
    OctalEdit->Modified = false;
  }
  DoChange();
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::FrameContextPopup(TObject * /*Sender*/,
      TPoint & /*MousePos*/, bool & /*Handled*/)
{
  NonVisualDataModule->RightsFrame = this;
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::FrameEnter(TObject * /*Sender*/)
{
  // allow keyboard shortcuts
  NonVisualDataModule->RightsFrame = this;
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::CycleRights(int Group)
{
  TRightState State;
  bool Same = true;
  for (int Flag = 0; Flag < 3; Flag++)
  {
    TRightState CState = States[(TRightsFlag)(Flag + ((Group - 1) * 3))];
    if (Flag == 0) State = CState;
      else
    if (State != CState) Same = False;
  }

  if (!Same)
  {
    State = rsYes;
  }
  else
  {
    switch (State) {
      case rsYes: State = rsNo; break;
      case rsNo: if (AllowUndef) State = rsUndef; else State = rsYes; break;
      case rsUndef: State = rsYes; break;
    }
  }

  for (int Flag = 0; Flag < 3; Flag++)
  {
    States[(TRightsFlag)(Flag + ((Group - 1) * 3))] = State;
  }
  UpdateControls();
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::RightsButtonsClick(TObject *Sender)
{
  CycleRights(((TComponent*)Sender)->Tag);
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::SetAllowAddXToDirectories(bool value)
{
  if (FAllowAddXToDirectories != value)
  {
    FAllowAddXToDirectories = value;
    UpdateControls();
  }
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::DoChange()
{
  if (FOnChange)
  {
    FOnChange(this);
  }
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::SetEnabled(bool Value)
{                 
  TFrame::SetEnabled(Value);
  UpdateControls();
}
//---------------------------------------------------------------------------
void __fastcall TRightsFrame::OctalEditExit(TObject * /*Sender*/)
{
  if (OctalEdit->Modified)
  {
    try
    {
      if (!OctalEdit->Text.IsEmpty())
      {
        TRights R = Rights;
        R.Octal = OctalEdit->Text;
        Rights = R;
      }
      UpdateControls();
      OctalEdit->Modified = false;
    }
    catch(...)
    {
      OctalEdit->SelectAll();
      OctalEdit->SetFocus();
      throw;
    }
  }
}
//---------------------------------------------------------------------------

