unit fGraphSettings;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  ComCtrls, StdCtrls, ExtCtrls, CheckLst, Math, ORCtrls, ORFn, uCore, uGraphs, fBase508Form,
  VA508AccessibilityManager;

type
  TfrmGraphSettings = class(TfrmBase508Form)
    brnClear: TButton;
    btnAll: TButton;
    btnClose: TButton;
    btnPersonal: TButton;
    btnPersonalSave: TButton;
    btnPublic: TButton;
    btnPublicSave: TButton;
    bvlBase: TBevel;
    bvlDefaults: TBevel;
    cboConversions: TORComboBox;
    chklstOptions: TCheckListBox;
    lblConversions: TLabel;
    lblMaxGraphs: TLabel;
    lblMaxGraphsRef: TLabel;
    lblMaxSelect: TLabel;
    lblMaxSelectRef: TLabel;
    lblMinGraphHeight: TLabel;
    lblMinGraphHeightRef: TLabel;
    lblOptions: TLabel;
    lblOptionsInfo: TLabel;
    lblSave: TLabel;
    lblShow: TLabel;
    lblSources: TLabel;
    lstATypes: TListBox;
    lstSources: TCheckListBox;
    lstSourcesCopy: TListBox;
    spnMaxGraphs: TUpDown;
    spnMaxSelect: TUpDown;
    spnMinGraphHeight: TUpDown;
    txtMaxGraphs: TEdit;
    txtMaxSelect: TEdit;
    txtMinGraphHeight: TEdit;
    bvlMid: TBevel;
    lstOptions: TListBox;
    cboDateRangeOutpatient: TORComboBox;
    cboDateRangeInpatient: TORComboBox;
    lblOutpatient: TLabel;
    lblInpatient: TLabel;
    procedure FormCreate(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure btnAllClick(Sender: TObject);
    procedure btnCloseClick(Sender: TObject);
    procedure btnPublicClick(Sender: TObject);
    procedure CheckSetting(setting: string; turnon: boolean);
    procedure chklstOptionsClickCheck(Sender: TObject);
    procedure SaveClick(Sender: TObject);
    procedure spnMaxGraphsClick(Sender: TObject; Button: TUDBtnType);
    procedure txtMaxGraphsChange(Sender: TObject);
    procedure txtMaxGraphsExit(Sender: TObject);
    procedure txtMaxGraphsKeyPress(Sender: TObject; var Key: Char);
    procedure spnMinGraphHeightClick(Sender: TObject; Button: TUDBtnType);
    procedure spnMaxSelectClick(Sender: TObject; Button: TUDBtnType);
    procedure txtMinGraphHeightChange(Sender: TObject);
    procedure txtMaxSelectChange(Sender: TObject);
    procedure txtMinGraphHeightExit(Sender: TObject);
    procedure txtMaxSelectExit(Sender: TObject);
    procedure txtMinGraphHeightKeyPress(Sender: TObject; var Key: Char);
    procedure txtMaxSelectKeyPress(Sender: TObject; var Key: Char);
    procedure AssignHints;
    function DisplaySettings: string;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);

  private
    FHintPauseTime: integer;
  public
    procedure wmNCLButtonDown(var Msg: TWMNCLButtonDown); message WM_NCLBUTTONDOWN;
    procedure ChangeSettings(aGraphSetting: TGraphSetting);
    procedure ChangeSources(DisplaySource: TStrings);
    procedure Conversion(conv: integer);
    procedure SetSettings(aGraphSetting: TGraphSetting);
    procedure SetSources(aList, DisplaySource: TStrings);
    procedure GetTypeList(aList: TStrings);
  end;

var
  frmGraphSettings: TfrmGraphSettings;

  procedure DialogOptionsGraphSettings(topvalue, leftvalue, fontsize: integer;
    var actiontype: boolean);
  procedure DialogGraphSettings(fontsize: integer;  var okbutton: boolean;
    aGraphSetting: TGraphSetting; DisplaySource: TStrings; var conv: integer; var aSettings: string);
  function FileNameX(filenum: string): string;

implementation

{$R *.DFM}

uses
  rGraphs, fGraphData, VAUtils;

var
  FPersonalSettings, FPublicSettings, FCloseSettings: string;

procedure DialogOptionsGraphSettings(topvalue, leftvalue, fontsize: integer;
  var actiontype: boolean);
var
  FGraphSetting: TGraphSetting;
  FSources, AllTypes: TStrings;
  i, conv: integer;
  aSettings, dfntype, listline, settings, settings1: string;
begin
  settings := GetCurrentSetting;
  settings1 := GetPublicSetting;
  if settings1 = '' then
  begin
    ShowMsg(TXT_NOGRAPHING);
    exit;
  end;
  settings1 := Piece(settings, '|', 1);
  Alltypes := TStringList.Create;
  FastAssign(GtslAllTypes, AllTypes);
  for i := 0 to AllTypes.Count - 1 do
  begin
    listline := AllTypes[i];
    dfntype := UpperCase(Piece(listline, '^', 1));
    SetPiece(listline, '^', 1, dfntype);
    AllTypes[i] := listline;
  end;
  FGraphSetting := GraphSettingsInit(settings);
  FSources := TStringList.Create;
  for i := 0 to BIG_NUMBER do
  begin
    dfntype := Piece(settings1, ';', i);
    if length(dfntype) = 0 then break;
    listline := dfntype + '^' + FileNameX(dfntype) + '^1';
    FSources.Add(listline);
  end;
  conv := BIG_NUMBER;  // indicates being called from Options
  DialogGraphSettings(fontsize, actiontype, FGraphSetting, FSources, conv, aSettings);
  FGraphSetting.Free;
  FSources.Free;
  AllTypes.Free;
end;

procedure DialogGraphSettings(fontsize: integer;  var okbutton: boolean;
  aGraphSetting: TGraphSetting; DisplaySource: TStrings; var conv: integer; var aSettings: string);
var
  t1, t2: string;
  aList: TStrings;
  frmGraphSettings: TfrmGraphSettings;
begin
  FCloseSettings := '';
  okbutton := false;
  aSettings := '';
  aList := TStringList.Create;
  frmGraphSettings := TfrmGraphSettings.Create(Application);
  try
    with frmGraphSettings do
    begin
      if displaysource.Count > 99999 then exit;
      FastAssign(rpcGetGraphDateRange('OR_GRAPHS'), cboDateRangeOutpatient.Items);
      if cboDateRangeOutpatient.Items.Count > 0 then
        cboDateRangeOutpatient.Items.Delete(0);
      FastAssign(cboDateRangeOutpatient.Items, cboDateRangeInpatient.Items);
      FastAssign(rpcGetGraphSettings, aList);
      t1 := GetPersonalSetting; t2 := GetPublicSetting;   // t1 are personal, t2 public settings
      FPersonalSettings := t1;
      FPublicSettings := t2;
      GetTypeList(aList);
      SetSources(aList, DisplaySource);
      SetSettings(aGraphSetting);
      with spnMaxGraphs do
        lblMaxGraphsRef.Caption := inttostr(Min) + ' to ' + inttostr(Max);
      with spnMinGraphHeight do
        lblMinGraphHeightRef.Caption := inttostr(Min) + ' to ' + inttostr(Max);
      with spnMaxSelect do
        lblMaxSelectRef.Caption := inttostr(Min) + ' to ' + inttostr(Max);
      Conversion(conv);
      ResizeAnchoredFormToFont(frmGraphSettings);
      ShowModal;
      okbutton := (btnClose.Tag = 1);
      if okbutton then
      begin
        aSettings := FCloseSettings;
        conv := cboConversions.ItemIndex;
        ChangeSources(DisplaySource);
        ChangeSettings(aGraphSetting);
      end;
    end;
  finally
    frmGraphSettings.Release;
    aList.Free;
  end;
end;

procedure TfrmGraphSettings.ChangeSettings(aGraphSetting: TGraphSetting);
var
  turnon: boolean;
  i : integer;
  value: string;
begin
  with aGraphSetting do
  begin
    MaxGraphs := spnMaxGraphs.Position;
    MinGraphHeight := spnMinGraphHeight.Position;
    MaxSelect := spnMaxSelect.Position;
    MaxSelectMin := 1;
    OptionSettings := '';
    with chklstOptions do
    for i := 0 to Items.Count - 1 do
    begin
      value := Piece(lstOptions.Items[i], '^', 2);
      turnon := Checked[i];
      if turnon then OptionSettings := OptionSettings + value;
      if value = SETTING_VALUES then Values := turnon
      else if value = SETTING_VZOOM then VerticalZoom := turnon
      else if value = SETTING_HZOOM then HorizontalZoom := turnon
      else if value = SETTING_3D then View3D := turnon
      else if value = SETTING_LEGEND then Legend := turnon
      else if value = SETTING_LINES then Lines := turnon
      else if value = SETTING_DATES then Dates := turnon
      else if value = SETTING_SORT then SortByType := turnon
      else if value = SETTING_CLEAR then ClearBackground := turnon
      else if value = SETTING_GRADIENT then Gradient := turnon
      else if value = SETTING_HINTS then Hints := turnon
      else if value = SETTING_FIXED then FixedDateRange := turnon
      else if value = SETTING_TURBO then Turbo := turnon
      else if value = SETTING_TOP then StayOnTop := turnon;
    end;
    if SortByType then SortColumn := 1 else SortColumn := 0;
    DateRangeOutpatient := cboDateRangeOutpatient.ItemID;
    DateRangeInpatient := cboDateRangeInpatient.ItemID;
  end;
end;

procedure TfrmGraphSettings.ChangeSources(DisplaySource: TStrings);
var
  needtoadd: boolean;
  i, j : integer;
  filename, filenum, dsitem, dsnum: string;
begin
  with lstSources do
  begin
    for i := 0 to Items.Count - 1 do
    begin
      needtoadd := false;
      if Checked[i] then
        needtoadd := true;
      filename := Piece(lstSourcesCopy.Items[i], '^', 1);
      filenum := Piece(lstSourcesCopy.Items[i], '^', 2);
      for j := 0 to DisplaySource.Count - 1 do
      begin
        dsitem := DisplaySource[j];
        dsnum := Piece(dsitem, '^', 1);
        if filenum = dsnum then
        begin
          needtoadd := false;
          if Checked[i] then
            DisplaySource[j] := filenum + '^' + filename + '^1'
          else
            DisplaySource[j] := filenum + '^' + filename + '^0';
          break;
        end;
      end;
      if needtoadd then
        DisplaySource.Add('*^' + filenum + '^' + filename + '^1');
    end;
  end;
end;

procedure TfrmGraphSettings.Conversion(conv: integer);
begin
  if conv = BIG_NUMBER then
  begin
    lblOptionsInfo.Visible := true;
    frmGraphSettings.Caption := 'Graph Settings - Defaults Only';
    lblConversions.Enabled := false;
    cboConversions.Enabled := false;
    cboConversions.ItemIndex := 0;
    cboConversions.Text := '';
  end
  else
  with cboConversions do
  begin
    lblOptionsInfo.Visible := false;
    frmGraphSettings.Caption := 'Graph Settings';
    if btnPublicSave.Enabled = true then
    begin
      lblConversions.Enabled := true;
      Enabled := true;
      ItemIndex := conv;
      Text := Items[ItemIndex];
    end
    else
    begin
      lblConversions.Enabled := false;
      cboConversions.Enabled := false;
      cboConversions.ItemIndex := 0;
      cboConversions.Text := '';
    end;
  end;
end;

procedure TfrmGraphSettings.SetSettings(aGraphSetting: TGraphSetting);
var
  i : integer;
  value: string;
begin
  with aGraphSetting do
  begin
    OptionSettings := '';
    if Values then OptionSettings := OptionSettings + SETTING_VALUES;
    if VerticalZoom then OptionSettings := OptionSettings + SETTING_VZOOM;
    if HorizontalZoom then OptionSettings := OptionSettings + SETTING_HZOOM;
    if View3D then OptionSettings := OptionSettings + SETTING_3D;
    if Legend then OptionSettings := OptionSettings + SETTING_LEGEND;
    if Lines then OptionSettings := OptionSettings + SETTING_LINES;
    if Dates then OptionSettings := OptionSettings + SETTING_DATES;
    if SortByType then OptionSettings := OptionSettings + SETTING_SORT;
    if ClearBackground then OptionSettings := OptionSettings + SETTING_CLEAR;
    if Gradient then OptionSettings := OptionSettings + SETTING_GRADIENT;
    if Hints then OptionSettings := OptionSettings + SETTING_HINTS;
    if StayOnTop then OptionSettings := OptionSettings + SETTING_TOP;
    if FixedDateRange then OptionSettings := OptionSettings + SETTING_FIXED;
    spnMaxGraphs.Position := MaxGraphs;
    spnMinGraphHeight.Position := MinGraphHeight;
    MaxSelect := Min(MaxSelectMax, MaxSelect);
    if MaxSelect < MaxSelectMin then
      MaxSelect := MaxSelectMin;
    spnMaxSelect.Position := MaxSelect;
    spnMaxSelect.Min := MaxSelectMin;
    spnMaxSelect.Max := MaxSelectMax;
    cboDateRangeOutpatient.SelectByID(DateRangeOutpatient);
    cboDateRangeInpatient.SelectByID(DateRangeInpatient);
    if SortByType then SortColumn := 1 else SortColumn := 0;
    lstOptions.Tag := SortColumn;
    if (SortColumn > 0) then
      if Pos(SETTING_SORT, OptionSettings) = 0 then
        OptionSettings := OptionSettings + SETTING_SORT;
    if Turbo then
      OptionSettings := OptionSettings + SETTING_TURBO;
    if GraphPublicEditor or GraphTurboOn then
    begin
      lstOptions.Items.Add('Turbo^N');
      chklstOptions.Items.Add('Turbo');
    end;
    for i := 0 to lstOptions.Items.Count - 1 do
    begin
      value := Piece(lstOptions.Items[i], '^', 2);
      chklstOptions.Checked[i] := Pos(value, OptionSettings) > 0;
    end;
  end;
end;

procedure TfrmGraphSettings.SetSources(aList, DisplaySource: TStrings);
var
  i, j : integer;
  listitem, filenum, filename, dsitem, dsnum, dsdisplay: string;
begin
  with lstSources.Items do
  begin
    Clear;
    lstSourcesCopy.Items.Clear;
    for i := 0 to aList.Count - 1 do
    begin
      listitem := aList[i];
      filenum := Piece(listitem, '^', 1);
      filename := Piece(listitem, '^', 2);
      Add(filename);
      lstSourcesCopy.Items.Add(filename + '^' + filenum);
    end;
    with lstSourcesCopy do
    for i := 0 to Items.Count - 1 do
    begin
      listitem := Items[i];
      filenum := Piece(listitem, '^', 2);
      for j := 0 to DisplaySource.Count - 1 do
      begin
        dsitem := DisplaySource[j];
        dsnum := Piece(dsitem, '^', 1);
        dsdisplay := Piece(dsitem, '^', 3);
        if filenum = dsnum then
        begin
          if dsdisplay = '1' then
            lstSources.Checked[i] := true;
          break;
        end;
      end;
    end;
  end;
end;

procedure TfrmGraphSettings.GetTypeList(aList: TStrings);
var
  i : integer;
  dfntype, listline : string;
begin
  FastAssign(GtslAllTypes, aList);
  for i := 0 to aList.Count -1 do
  begin
    listline := aList[i];
    dfntype := UpperCase(Piece(listline, '^', 1));
    SetPiece(listline, '^', 1, dfntype);
    aList[i] := listline;
  end;
end;

function FileNameX(filenum: string): string;
var
  i: integer;
  typestring: string;
  AllTypes: TStrings;
begin
  Result := '';
  Alltypes := TStringList.Create;
  for i := 0 to AllTypes.Count - 1 do
  begin
    typestring := AllTypes[i];
    if Piece(typestring, '^', 1) = filenum then
    begin
      Result := Piece(AllTypes[i], '^', 2);
      break;
    end;
  end;
  if Result = '' then
  begin
    for i := 0 to AllTypes.Count - 1 do
    begin
      typestring := AllTypes[i];
      if lowercase(Piece(typestring, '^', 1)) = filenum then
      begin
        Result := Piece(AllTypes[i], '^', 2);
        break;
      end;
    end;
  end;
  Alltypes.Free;  
end;

procedure TfrmGraphSettings.FormCreate(Sender: TObject);
var
  i: integer;
begin
  btnPublicSave.Enabled := GraphPublicEditor;
  lblConversions.Enabled := btnPublicSave.Enabled;
  cboConversions.Enabled := btnPublicSave.Enabled;
  for i := 0 to lstOptions.Items.Count - 1 do
   chklstOptions.Items.Add(Piece(lstOptions.Items[i], '^', 1));
end;

procedure TfrmGraphSettings.btnAllClick(Sender: TObject);
var
  i: integer;
begin
  for i := 0 to lstSources.Count - 1 do
    lstSources.Checked[i] := (Sender = btnAll);
end;

procedure TfrmGraphSettings.btnCloseClick(Sender: TObject);
begin
  btnClose.Tag := 1; // forces check for changes
  FCloseSettings := DisplaySettings;
  Close;
end;

function TfrmGraphSettings.DisplaySettings: string;
var
  i: integer;
  delim, settings, value: string;
begin
  settings := '';
  delim := '';
  for i := 0 to lstSourcesCopy.Items.Count - 1 do
  if lstSources.Checked[i] then
  begin
    settings := settings + delim + Piece(lstSourcesCopy.Items[i], '^', 2);
    delim := ';';
  end;
  settings := settings + '|';
  delim := '';
  for i := 0 to chklstOptions.Items.Count - 1 do
  begin
    value := '';
    if chklstOptions.Checked[i] then value := Piece(lstOptions.Items[i], '^', 2);
    settings := settings + value;
  end;
  settings := settings + '|' + inttostr(lstOptions.Tag);  // sortorder
  settings := settings + '|';
  settings := settings + txtMaxGraphs.Text + '|';
  settings := settings + txtMinGraphHeight.Text + '|';
  settings := settings + '|';     // not used - reserved - set by server
  settings := settings + txtMaxSelect.Text + '|';
  settings := settings + Piece(FPublicSettings, '|', 8) + '|';
  settings := settings + cboDateRangeOutpatient.ItemID + '|';
  settings := settings + cboDateRangeInpatient.ItemID + '|';
  Result := settings;
end;

procedure TfrmGraphSettings.btnPublicClick(Sender: TObject);
var
  i, j, k: integer;
  dfntype, filename, settings, settings1, settings2, value: string;
begin
  if Sender = btnPublic then
    settings := FPublicSettings
  else
    settings := FPersonalSettings;
  settings1 := Piece(settings, '|', 1);
  settings2 := Piece(settings, '|', 2);  //piece 3 not used
  spnMaxGraphs.Position := strtointdef(Piece(settings, '|', 4), 5);
  spnMinGraphHeight.Position := strtointdef(Piece(settings, '|', 5), 90);  //piece 6 not used
  spnMaxSelect.Position := strtointdef(Piece(settings, '|', 7), 100);
  spnMaxSelect.Max := strtointdef(Piece(settings, '|', 8), 1000);
  spnMaxGraphs.Tag := spnMaxGraphs.Position;
  spnMinGraphHeight.Tag := spnMinGraphHeight.Position;
  spnMaxSelect.Tag := spnMaxSelect.Position;
  cboDateRangeOutpatient.SelectByID(Piece(settings, '|', 9));
  cboDateRangeInpatient.SelectByID(Piece(settings, '|', 10));
  for i := 0 to lstOptions.Items.Count - 1 do
  begin
    value := Piece(lstOptions.Items[i], '^', 2);
    chklstOptions.Checked[i] := Pos(value, settings2) > 0;
  end;
  for i := 0 to lstSources.Items.Count -1 do
    lstSources.Checked[i] := false;
  for i := 0 to BIG_NUMBER do
  begin
    dfntype := Piece(settings1, ';', i);
    if length(dfntype) = 0 then break;
    for j := 0 to lstSourcesCopy.Items.Count - 1 do
    if dfntype = Piece(lstSourcesCopy.Items[j], '^', 2) then
    begin
      filename := Piece(lstSourcesCopy.Items[j], '^', 1);
      for k := 0 to lstSources.Items.Count - 1 do
        if filename = lstSources.Items[k] then
        begin
          lstSources.Checked[k] := true;
          break;
        end;
      break;
    end;
  end;
end;

procedure TfrmGraphSettings.chklstOptionsClickCheck(Sender: TObject);
var
  value: string;
begin
  with chklstOptions do
  begin
    value := Piece(lstOptions.Items[ItemIndex], '^', 2);
    if State[ItemIndex] = cbChecked then
      if value = SETTING_CLEAR then
        CheckSetting(SETTING_GRADIENT, false)
      else if value = SETTING_GRADIENT then
        CheckSetting(SETTING_CLEAR, false)
      else if value = SETTING_VZOOM then
        CheckSetting(SETTING_HZOOM, true);
    if State[ItemIndex] = cbUnchecked then
      if value = SETTING_HZOOM then
        CheckSetting(SETTING_VZOOM, false);
  end;
end;

procedure TfrmGraphSettings.CheckSetting(setting: string; turnon: boolean);
var
  i: integer;
  value: string;
begin
  for i := 0 to lstOptions.Items.Count -1 do
  begin
    value := Piece(lstOptions.Items[i], '^', 2);
    if value = setting then
    begin
      chklstOptions.Checked[i] := turnon;
      break;
    end;
  end;
end;

procedure TfrmGraphSettings.SaveClick(Sender: TObject);
var
  info, settings: string;
begin
  if (Sender = btnPublicSave) then
    info := 'This will change the PUBLIC default to these settings.'
  else if (Sender = btnPersonalSave) then
    info := 'This will change your personal default to these settings.';
  info := info + #13 + 'Is this what you want to do?';
  if MessageDlg(info, mtConfirmation, [mbYes, mbNo], 0) <> mrYes then
  begin
    ShowMsg('No changes were made.');
    exit;
  end;
  settings := DisplaySettings;
  if (Sender = btnPersonalSave) then
  begin
    rpcSetGraphSettings(settings, '0');
    FPersonalSettings := settings;
  end;
  if (Sender = btnPublicSave) then
  begin
    SetPiece(settings, '|', 6, Piece(FPublicSettings, '|', 6));  // retain turbo setting
    rpcSetGraphSettings(settings, '1');
    FPublicSettings := settings;
  end;
end;

procedure TfrmGraphSettings.spnMaxGraphsClick(Sender: TObject;
  Button: TUDBtnType);
begin
  //txtMaxGraphs.SetFocus;
  txtMaxGraphs.Tag := strtointdef(txtMaxGraphs.Text, spnMaxGraphs.Min);
end;

procedure TfrmGraphSettings.txtMaxGraphsChange(Sender: TObject);
var
  maxvalue, minvalue: integer;
begin
  maxvalue := spnMaxGraphs.Max;
  minvalue := spnMaxGraphs.Min;
  if strtointdef(txtMaxGraphs.Text, maxvalue) > maxvalue then
  begin
    beep;
    InfoBox('Number must be < ' + inttostr(maxvalue), 'Warning', MB_OK or MB_ICONWARNING);
    if strtointdef(txtMaxGraphs.Text, 0) > maxvalue then
      txtMaxGraphs.Text := inttostr(maxvalue);
  end;
  if strtointdef(txtMaxGraphs.Text, minvalue) < minvalue then
  begin
    beep;
    InfoBox('Number must be > ' + inttostr(minvalue), 'Warning', MB_OK or MB_ICONWARNING);
    if strtointdef(txtMaxGraphs.Text, 0) < minvalue then
      txtMaxGraphs.Text := inttostr(minvalue);
  end;
  spnMaxGraphsClick(self, btNext);
end;

procedure TfrmGraphSettings.txtMaxGraphsExit(Sender: TObject);
begin
  with txtMaxGraphs do
  if Text = '' then
  begin
    Text := inttostr(spnMaxGraphs.Min);
    spnMaxGraphsClick(self, btNext);
  end
  else if (copy(Text, 1, 1) = '0') and (length(Text) > 1) then
  begin
    Text := inttostr(strtointdef(Text, 0));
    if Text = '0' then
      Text := inttostr(spnMaxGraphs.Min);
    spnMaxGraphsClick(self, btNext);
  end;
end;

procedure TfrmGraphSettings.txtMaxGraphsKeyPress(Sender: TObject;
  var Key: Char);
begin
  if Key = #13 then
  begin
    Perform(WM_NextDlgCtl, 0, 0);
    exit;
  end;
  if not (Key in ['0'..'9', #8]) then
  begin
    Key := #0;
    beep;
  end;
end;

procedure TfrmGraphSettings.spnMinGraphHeightClick(Sender: TObject;
  Button: TUDBtnType);
begin
  //txtMinGraphHeight.SetFocus;
  txtMinGraphHeight.Tag := strtointdef(txtMinGraphHeight.Text, spnMinGraphHeight.Min);
end;

procedure TfrmGraphSettings.spnMaxSelectClick(Sender: TObject;
  Button: TUDBtnType);
begin
  //txtMaxSelect.SetFocus;
  txtMaxSelect.Tag := strtointdef(txtMaxSelect.Text, spnMaxSelect.Min);
end;

procedure TfrmGraphSettings.txtMinGraphHeightChange(Sender: TObject);
var
  maxvalue, minvalue: integer;
begin
  maxvalue := spnMinGraphHeight.Max;
  minvalue := spnMinGraphHeight.Min;
  if strtointdef(txtMinGraphHeight.Text, maxvalue) > maxvalue then
  begin
    beep;
    InfoBox('Number must be < ' + inttostr(maxvalue), 'Warning', MB_OK or MB_ICONWARNING);
    if strtointdef(txtMinGraphHeight.Text, 0) > maxvalue then
      txtMinGraphHeight.Text := inttostr(maxvalue);
  end;
  if strtointdef(txtMinGraphHeight.Text, minvalue) < minvalue then
    if txtMinGraphHeight.Hint = KEYPRESS_OFF then
    begin
      beep;
      InfoBox('Number must be > ' + inttostr(minvalue), 'Warning', MB_OK or MB_ICONWARNING);
      if strtointdef(txtMinGraphHeight.Text, 0) < minvalue then
        txtMinGraphHeight.Text := inttostr(minvalue);
    end;
  spnMinGraphHeightClick(self, btNext);
  txtMinGraphHeight.Hint := KEYPRESS_OFF;
end;

procedure TfrmGraphSettings.txtMaxSelectChange(Sender: TObject);
var
  maxvalue, minvalue: integer;
begin
  maxvalue := spnMaxSelect.Max;
  minvalue := spnMaxSelect.Min;
  if strtointdef(txtMaxSelect.Text, maxvalue) > maxvalue then
  begin
    beep;
    InfoBox('Number must be < ' + inttostr(maxvalue), 'Warning', MB_OK or MB_ICONWARNING);
    if strtointdef(txtMaxSelect.Text, 0) > maxvalue then
      txtMaxSelect.Text := inttostr(maxvalue);
  end;
  if strtointdef(txtMaxSelect.Text, minvalue) < minvalue then
    if txtMaxSelect.Hint = KEYPRESS_OFF then
    begin
      beep;
      InfoBox('Number must be > ' + inttostr(minvalue), 'Warning', MB_OK or MB_ICONWARNING);
      if strtointdef(txtMaxSelect.Text, 0) < minvalue then
        txtMaxSelect.Text := inttostr(minvalue);
    end;
  spnMaxSelectClick(self, btNext);
  txtMaxSelect.Hint := KEYPRESS_OFF;
end;

procedure TfrmGraphSettings.txtMinGraphHeightExit(Sender: TObject);
begin
  with txtMinGraphHeight do
  if Text = '' then
  begin
    Text := inttostr(spnMinGraphHeight.Min);
    spnMinGraphHeightClick(self, btNext);
  end
  else if (copy(Text, 1, 1) = '0') and (length(Text) > 1) then
  begin
    Text := inttostr(strtointdef(Text, 0));
    if Text = '0' then
      Text := inttostr(spnMinGraphHeight.Min);
    spnMinGraphHeightClick(self, btNext);
  end
  else if strtointdef(txtMinGraphHeight.Text, spnMinGraphHeight.Min) < spnMinGraphHeight.Min then
  begin
    Text := inttostr(spnMinGraphHeight.Min);
    spnMinGraphHeightClick(self, btNext);
  end;
end;

procedure TfrmGraphSettings.txtMaxSelectExit(Sender: TObject);
begin
  with txtMaxSelect do
  if Text = '' then
  begin
    Text := inttostr(spnMaxSelect.Min);
    spnMaxSelectClick(self, btNext);
  end
  else if (copy(Text, 1, 1) = '0') and (length(Text) > 1) then
  begin
    Text := inttostr(strtointdef(Text, 0));
    if Text = '0' then
      Text := inttostr(spnMaxSelect.Min);
    spnMaxSelectClick(self, btNext);
  end
  else if strtointdef(txtMaxSelect.Text, spnMaxSelect.Min) < spnMaxSelect.Min then
  begin
    Text := inttostr(spnMaxSelect.Min);
    spnMaxSelectClick(self, btNext);
  end;
end;

procedure TfrmGraphSettings.txtMinGraphHeightKeyPress(Sender: TObject;
  var Key: Char);
begin
  txtMinGraphHeight.Hint := KEYPRESS_OFF;
  if Key = #13 then
  begin
    Perform(WM_NextDlgCtl, 0, 0);
    exit;
  end;
  if not (Key in ['0'..'9', #8]) then
  begin
    Key := #0;
    beep;
    exit;
  end;
  txtMinGraphHeight.Hint := KEYPRESS_ON;
end;

procedure TfrmGraphSettings.txtMaxSelectKeyPress(Sender: TObject;
  var Key: Char);
begin
  txtMaxSelect.Hint := KEYPRESS_OFF;
  if Key = #13 then
  begin
    Perform(WM_NextDlgCtl, 0, 0);
    exit;
  end;
  if not (Key in ['0'..'9', #8]) then
  begin
    Key := #0;
    beep;
    exit;
  end;
  txtMaxSelect.Hint := KEYPRESS_ON;
end;

procedure TfrmGraphSettings.FormShow(Sender: TObject);
begin
  //if Caption = 'Graph Settings - Defaults Only' then
  //  btnPersonal.SetFocus;
  FHintPauseTime := Application.HintHidePause;
  Application.HintHidePause := 9000; // uses a longer hint pause time
end;

procedure TfrmGraphSettings.AssignHints;
var
  i: integer;
begin                       // text defined in uGraphs
  for i := 0 to ControlCount - 1 do with Controls[i] do
    Controls[i].ShowHint := true;
  lblSources.Hint := SHINT_SOURCES;
  lstSources.Hint := SHINT_SOURCES;
  lblOptions.Hint := SHINT_OPTIONS;
  chklstOptions.Hint := SHINT_OPTIONS;
  btnAll.Hint := SHINT_BTN_ALL;
  brnClear.Hint := SHINT_BTN_CLEAR;
  lblShow.Hint := SHINT_BTN_SHOW;
  lblSave.Hint := SHINT_BTN_SAVE;
  btnPersonal.Hint := SHINT_BTN_PER;
  btnPersonalSave.Hint := SHINT_BTN_PERSAVE;
  btnPublic.Hint := SHINT_BTN_PUB;
  btnPublicSave.Hint := SHINT_BTN_PUBSAVE;
  lblOptionsInfo.Hint := SHINT_BTN_CLOSE;
  btnClose.Hint := SHINT_BTN_CLOSE;
  lblMaxGraphs.Hint := SHINT_MAX;
  txtMaxGraphs.Hint := SHINT_MAX;
  spnMaxGraphs.Hint := SHINT_MAX;
  lblMaxGraphsRef.Hint := SHINT_MAX ;
  lblMinGraphHeight.Hint := SHINT_MIN;
  txtMinGraphHeight.Hint := SHINT_MIN;
  spnMinGraphHeight.Hint := SHINT_MIN;
  lblMinGraphHeightRef.Hint := SHINT_MIN;
  lblMaxSelect.Hint := SHINT_MAX_ITEMS;
  txtMaxSelect.Hint := SHINT_MAX_ITEMS;
  spnMaxSelect.Hint := SHINT_MAX_ITEMS;
  lblMaxSelectRef.Hint := SHINT_MAX_ITEMS;
  lblOutpatient.Hint := SHINT_OUTPT;
  cboDateRangeOutpatient.Hint := SHINT_OUTPT;
  lblInpatient.Hint := SHINT_INPT;
  cboDateRangeInpatient.Hint := SHINT_INPT;
  lblConversions.Hint := SHINT_FUNCTIONS;
  cboConversions.Hint := SHINT_FUNCTIONS;
end;

procedure TfrmGraphSettings.wmNCLButtonDown(var Msg: TWMNCLButtonDown);
begin            // clicking the ? button will have controls show hints
  if Msg.HitTest = HTHELP then
  begin
    Msg.Result := 0; // ignore biHelp border icon
    AssignHints;
    ShowMsg('Help is now available.' + #13 +
                'By pausing over a list or control, hints will appear.');
  end
  else
    inherited;
end;

procedure TfrmGraphSettings.FormClose(Sender: TObject;
  var Action: TCloseAction);
begin
  Application.HintHidePause := FHintPauseTime;
end;

end.