glaccountsform.pas

功能全面的商业财会系统源码,清晰,很有参考价值.扩展性强.

unit GLAccountsForm;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  DBCtrls, Grids, DBGrids, DB, DBTables, Menus, ExtCtrls, StdCtrls, Buttons, BDE;

type
  TfrmGLAccounts = class(TForm)
    Panel1: TPanel;
    MainMenu1: TMainMenu;
    tblGLAccnt: TTable;
    dsGLAccnt: TDataSource;
    DBGrid1: TDBGrid;
    cboFind: TComboBox;
    Label1: TLabel;
    mnuFile: TMenuItem;
    mnuView: TMenuItem;
    mnuHelp: TMenuItem;
    mnuFilter: TMenuItem;
    mnuSortBy: TMenuItem;
    N1: TMenuItem;
    mnuRefresh: TMenuItem;
    mnuGLAccountsHelp: TMenuItem;
    mnuPrint: TMenuItem;
    N2: TMenuItem;
    mnuExit: TMenuItem;
    Bevel1: TBevel;
    mnuSortName: TMenuItem;
    mnuSortAccountno: TMenuItem;
    mnuHistory: TMenuItem;
    N4: TMenuItem;
    btnNew: TSpeedButton;
    btnEdit: TSpeedButton;
    btnDelete: TSpeedButton;
    editFind: TEdit;
    mnuRecords: TMenuItem;
    mnuNew: TMenuItem;
    mnuEdit: TMenuItem;
    mnuDelete: TMenuItem;
    tblGLAccntGLAccount: TStringField;
    tblGLAccntAccountName: TStringField;
    qryGLAccnt: TQuery;
    qryGLAccntGLAccount: TStringField;
    qryGLAccntAccountName: TStringField;
    qryGLAccntAccountType: TSmallintField;
    qryGLAccntAccountTypeName: TStringField;
    qryGLAccntSuspended: TBooleanField;
    tblGLAccntSuspended: TBooleanField;
    tblGLAccntAccountType: TSmallintField;
    PopupMenu1: TPopupMenu;
    popNew: TMenuItem;
    popEdit: TMenuItem;
    popDelete: TMenuItem;
    N3: TMenuItem;
    popHistory: TMenuItem;
    mnuBalances: TMenuItem;
    Balances1: TMenuItem;
    procedure mnuRefreshClick(Sender: TObject);
    procedure tblGLAccntBeforeDelete(DataSet: TDataSet);
    procedure FormCreate(Sender: TObject);
    procedure Panel1DblClick(Sender: TObject);
    procedure cboFindDropDown(Sender: TObject);
    procedure cboFindKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure cboFindClick(Sender: TObject);
    procedure cboFindKeyPress(Sender: TObject; var Key: Char);
    procedure tblGLAccntAfterDelete(DataSet: TDataSet);
    procedure DBGrid1KeyPress(Sender: TObject; var Key: Char);
    procedure FormShow(Sender: TObject);
    procedure editFindKeyPress(Sender: TObject; var Key: Char);
    procedure mnuNewClick(Sender: TObject);
    procedure mnuEditClick(Sender: TObject);
    procedure mnuDeleteClick(Sender: TObject);
    procedure mnuExitClick(Sender: TObject);
    procedure qryGLAccntCalcFields(DataSet: TDataSet);
    procedure mnuSortAccountnoClick(Sender: TObject);
    procedure mnuSortNameClick(Sender: TObject);
    procedure FormResize(Sender: TObject);
    procedure mnuPrintClick(Sender: TObject);
    procedure mnuFilterClick(Sender: TObject);
    procedure qryGLAccntFilterRecord(DataSet: TDataSet;
      var Accept: Boolean);
    procedure tblGLAccntFilterRecord(DataSet: TDataSet;
      var Accept: Boolean);
    procedure mnuHistoryClick(Sender: TObject);
    procedure mnuBalancesClick(Sender: TObject);
    procedure mnuGLAccountsHelpClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmGLAccounts: TfrmGLAccounts;
  
implementation

uses BS1Form, GLAccountForm, GLAccountsReport, GLAccountsFilterForm,
  GLBalancesForm, GLBalancesFilterForm, GLHistoryForm, GLHistoryFilterForm;

var
  intClientHeight, intClientWidth: Integer;
  cboFind_GLAccounts: TStringList;
  OldWindowState: TWindowState;

{$R *.DFM}

procedure cboFind_Load(const Tbl: TTable; const Cbo: TCombobox);
begin
  Cbo.Items.Clear;   //Populate "find" combobox.
  cboFind_GLAccounts.Clear;
  Tbl.First;
  while not Tbl.EOF do begin
    Cbo.Items.Add(Tbl['AccountName']);
    cboFind_GLAccounts.Add(Tbl['GLAccount']);
    Tbl.Next;
  end;
  frmGLAccounts_cboFind_RequeryRequired := false;
end;

procedure TfrmGLAccounts.mnuRefreshClick(Sender: TObject);
var
  Bookmark: TBookmark;
begin
  screen.cursor := crHourglass;
  Bookmark := qryGLAccnt.GetBookmark;
  with qryGLAccnt do begin close; open; end;   //Refresh.
  try qryGLAccnt.GotoBookmark(Bookmark); except; end;
  qryGLAccnt.FreeBookmark(BookMark);
  screen.cursor := crDefault;
end;

procedure TfrmGLAccounts.tblGLAccntBeforeDelete(DataSet: TDataSet);
begin
  if MessageDlg('Delete ' + '''' + tblGLAccntGLAccount.AsString + ': ' + tblGLAccntAccountName.AsString + '''' + '?',mtConfirmation,mbOKCancel,0) <> mrOK then raise(EAbort.create(''));   //Silent Exception: "abort;" replaced by "raise etc" since abort conflicts with BDE (required by DbiSaveChanges).
  repaint;
end;

procedure TfrmGLAccounts.FormCreate(Sender: TObject);
var
  x: integer;
begin
  qryGLAccnt.DatabaseName := strDatabaseName;
  tblGLAccnt.DatabaseName := strDatabaseName;
  qryGLAccnt.Active := true;
  tblGLAccnt.Active := true;

  cboFind_GLAccounts := TStringList.create;   //Create a TStringList to store Accounts for the "find" combobox.
  cboFind_Load(tblGLAccnt, cboFind);   //Populate "find" combobox.

  if FontFactor <> 1 then begin   //If using large fonts, resize grid columns.
    intClientWidth := Trunc(20*FontFactor) + DBGrid1.Columns.Count - 1;   //Scrollbar + grid lines.
    for x := 0 to DBGrid1.Columns.Count - 1 do begin
      DBGrid1.Columns[x].width := Trunc(DBGrid1.Columns[x].width*FontFactor);
      intClientWidth := intClientWidth + DBGrid1.Columns[x].width;
    end;
    ClientWidth := intClientWidth;
  end;  
  intClientHeight := ClientHeight;   //Store form size.
  intClientWidth := ClientWidth;
end;

procedure TfrmGLAccounts.Panel1DblClick(Sender: TObject);
begin
  ClientHeight := intClientHeight;   //Resize form.
  ClientWidth := intClientWidth;
end;

procedure TfrmGLAccounts.cboFindDropDown(Sender: TObject);
begin
  if frmGLAccounts_cboFind_RequeryRequired = true then cboFind_Load(tblGLAccnt, cboFind);   //Populate "find" combobox.
end;

procedure TfrmGLAccounts.cboFindKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if frmGLAccounts_cboFind_RequeryRequired = true then cboFind_Load(tblGLAccnt, cboFind);   //Populate "find" combobox.
end;

procedure TfrmGLAccounts.cboFindClick(Sender: TObject);
begin
  if cboFind.Text = '' then exit;
  editFind.text := '';
  if cboFind.Items.IndexOf(cboFind.Text) < 0 then raise(Exception.Create('Choose an item from the list'));
  if qryGLAccnt.Locate('GLAccount', cboFind_GLAccounts[cboFind.ItemIndex], []) <> true then raise(Exception.Create('''' + cboFind.Text + '''' + ' not found'));
end;

procedure TfrmGLAccounts.cboFindKeyPress(Sender: TObject; var Key: Char);
begin
  if key = #13 then begin
    Key := #0;   //Cancel Enter key.
    if (cboFind.Text = '') or (cboFind.Text = '<Account name>') then begin
      Perform(WM_NEXTDLGCTL, 0, 0);   //Advance to next control.
      exit;
    end;
    cboFindClick(Sender);   //Trigger click event (in case partial text was entered then combobox opened: item would show as selected, but Enter wouldn't process it).
    Perform(WM_NEXTDLGCTL, 0, 0);   //Advance to next control.
  end;
end;

procedure TfrmGLAccounts.tblGLAccntAfterDelete(DataSet: TDataSet);
begin
  frmGLAccounts_cboFind_RequeryRequired := true;
  frmGLBalances_cboFind_RequeryRequired := true;
  frmGLBudget_cboFind_RequeryRequired := true;
  frmGLHistory_cboFind_RequeryRequired := true;
  cboFind.text := '';
end;

procedure TfrmGLAccounts.DBGrid1KeyPress(Sender: TObject; var Key: Char);
begin
  if key = #13 then begin
    mnuEditClick(Sender);
    Key := #0;   //Cancel Enter key.
  end;
end;

procedure TfrmGLAccounts.FormShow(Sender: TObject);