Chip 2002 September/Chip_2002-09_cd1.bin/zkuste/delphi/kompon/d6/YPPARSER.ZIP/GraphX/GraphImpl.pas

Pascal/Delphi Source File | 2002-06-14 | 19KB | 702 lines

{********************************************************}
{                                                        }
{                      GraphX                            }
{             IMPORTANT-READ CAREFULLY:                  }
{                                                        }
{    This End-User License Agreement is a legal          }
{    agreement between you (either an individual         }
{    or a single entity) and Pisarev Yuriy for           }
{    the software product identified above, which        }
{    includes computer software and may include          }
{    associated media, printed materials, and "online"   }
{    or electronic documentation ("SOFTWARE PRODUCT").   }
{    By installing, copying, or otherwise using the      }
{    SOFTWARE PRODUCT, you agree to be bound by the      }
{    terms of this LICENSE AGREEMENT.                    }
{                                                        }
{    If you do not agree to the terms of this            }
{    LICENSE AGREEMENT, do not install or use            }
{    the SOFTWARE PRODUCT.                               }
{                                                        }
{    License conditions                                  }
{                                                        }
{    No part of the software or the manual may be        }
{    multiplied, disseminated or processed in any        }
{    way without the written consent of Pisarev          }
{    Yuriy. Violations of these conditions will be       }
{    prosecuted in every case.                           }
{                                                        }
{    The use of the software is done at your own         }
{    risk. The manufacturer and developer accepts        }
{    no liability for any damages, either as direct      }
{    or indirect consequence of the use of this          }
{    product or software.                                }
{                                                        }
{    Only observance of these conditions allows you      }
{    to use the hardware and software in your computer   }
{    system.                                             }
{                                                        }
{    All rights reserved.                                }
{    Copyright 2002 Pisarev Yuriy                        }
{                                                        }
{                 [e-mail]                 }
{                                                        }
{********************************************************}

unit GraphImpl;

{$WARN SYMBOL_PLATFORM OFF}

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  ActiveX, AxCtrls, XGraph_TLB, StdVcl, ActnList, ActnMan, ImgList,
  ComCtrls, StdCtrls, ExtCtrls, ToolWin, ClipBrd, GraphBldr, Menus;

type
  TGraphX = class(TActiveForm, IGraphX)
    ControlBar1: TControlBar;
    ToolBar1: TToolBar;
    Panel1: TPanel;
    tbCalculate: TToolButton;
    tbDelete: TToolButton;
    tbShowGrid: TToolButton;
    tbCopy: TToolButton;
    ToolButton1: TToolButton;
    tbDetailLevel: TTrackBar;
    tbGraphColor: TToolButton;
    ToolButton2: TToolButton;
    StatusBar: TStatusBar;
    ImageList1: TImageList;
    ActionManager1: TActionManager;
    EditCalculate: TAction;
    EditShowGrid: TAction;
    EditTrace: TAction;
    EditCopy: TAction;
    EditDelete: TAction;
    EditGraphColor: TAction;
    ColorDialog: TColorDialog;
    HelpAbout: TAction;
    GraphBldr: TGraphBldr;
    ToolBar2: TToolBar;
    Panel2: TPanel;
    edXMaxValue: TEdit;
    udXMaxValue: TUpDown;
    ToolButton4: TToolButton;
    Panel3: TPanel;
    edYMaxValue: TEdit;
    udYMaxValue: TUpDown;
    ToolButton5: TToolButton;
    Panel4: TPanel;
    edPenWidth: TEdit;
    udPenWidth: TUpDown;
    ToolButton6: TToolButton;
    Panel6: TPanel;
    edHorzSpacing: TEdit;
    udHorzSpacing: TUpDown;
    ToolButton7: TToolButton;
    Panel7: TPanel;
    edVertSpacing: TEdit;
    udVertSpacing: TUpDown;
    EditAxis: TAction;
    tbHelp: TToolButton;
    tbAxis: TToolButton;
    ToolButton3: TToolButton;
    RichEdit: TRichEdit;
    tbTrace: TToolButton;
    procedure EditCalculateExecute(Sender: TObject);
    procedure EditShowGridExecute(Sender: TObject);
    procedure EditAxisExecute(Sender: TObject);
    procedure EditTraceExecute(Sender: TObject);
    procedure EditCopyExecute(Sender: TObject);
    procedure EditDeleteExecute(Sender: TObject);
    procedure EditGraphColorExecute(Sender: TObject);
    procedure GraphBldrMouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
    procedure GraphBldrTrace(Sender: TObject; X, Y: Double);
    procedure edTextKeyPress(Sender: TObject; var Key: Char);
    procedure tbDetailLevelChange(Sender: TObject);
    procedure RichEditKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure edXMaxValueChange(Sender: TObject);
    procedure edYMaxValueChange(Sender: TObject);
    procedure edPenWidthChange(Sender: TObject);
    procedure edHorzSpacingChange(Sender: TObject);
    procedure edVertSpacingChange(Sender: TObject);
    procedure EditKeyPress(Sender: TObject; var Key: Char);
    procedure HelpAboutExecute(Sender: TObject);
  private
    FEvents: IGraphXEvents;
    procedure ActivateEvent(Sender: TObject);
    procedure ClickEvent(Sender: TObject);
    procedure CreateEvent(Sender: TObject);
    procedure DblClickEvent(Sender: TObject);
    procedure DeactivateEvent(Sender: TObject);
    procedure DestroyEvent(Sender: TObject);
    procedure KeyPressEvent(Sender: TObject; var Key: Char);
    procedure PaintEvent(Sender: TObject);
  protected
    procedure DefinePropertyPages(DefinePropertyPage: TDefinePropertyPage); override;
    procedure EventSinkChanged(const EventSink: IUnknown); override;
    function Get_Active: WordBool; safecall;
    function Get_AlignDisabled: WordBool; safecall;
    function Get_AutoScroll: WordBool; safecall;
    function Get_AutoSize: WordBool; safecall;
    function Get_AxBorderStyle: TxActiveFormBorderStyle; safecall;
    function Get_Caption: WideString; safecall;
    function Get_Color: OLE_COLOR; safecall;
    function Get_Cursor: Smallint; safecall;
    function Get_DoubleBuffered: WordBool; safecall;
    function Get_DropTarget: WordBool; safecall;
    function Get_Enabled: WordBool; safecall;
    function Get_Font: IFontDisp; safecall;
    function Get_HelpFile: WideString; safecall;
    function Get_HelpKeyword: WideString; safecall;
    function Get_HelpType: TxHelpType; safecall;
    function Get_KeyPreview: WordBool; safecall;
    function Get_PixelsPerInch: Integer; safecall;
    function Get_PrintScale: TxPrintScale; safecall;
    function Get_Scaled: WordBool; safecall;
    function Get_Visible: WordBool; safecall;
    function Get_VisibleDockClientCount: Integer; safecall;
    procedure _Set_Font(var Value: IFontDisp); safecall;
    procedure AboutBox; safecall;
    procedure Set_AutoScroll(Value: WordBool); safecall;
    procedure Set_AutoSize(Value: WordBool); safecall;
    procedure Set_AxBorderStyle(Value: TxActiveFormBorderStyle); safecall;
    procedure Set_Caption(const Value: WideString); safecall;
    procedure Set_Color(Value: OLE_COLOR); safecall;
    procedure Set_Cursor(Value: Smallint); safecall;
    procedure Set_DoubleBuffered(Value: WordBool); safecall;
    procedure Set_DropTarget(Value: WordBool); safecall;
    procedure Set_Enabled(Value: WordBool); safecall;
    procedure Set_Font(const Value: IFontDisp); safecall;
    procedure Set_HelpFile(const Value: WideString); safecall;
    procedure Set_HelpKeyword(const Value: WideString); safecall;
    procedure Set_HelpType(Value: TxHelpType); safecall;
    procedure Set_KeyPreview(Value: WordBool); safecall;
    procedure Set_PixelsPerInch(Value: Integer); safecall;
    procedure Set_PrintScale(Value: TxPrintScale); safecall;
    procedure Set_Scaled(Value: WordBool); safecall;
    procedure Set_Visible(Value: WordBool); safecall;
    function Get_Detailization: Integer; safecall;
    procedure Set_Detailization(Value: Integer); safecall;
    function Get_XMaxValue: Integer; safecall;
    procedure Set_XMaxValue(Value: Integer); safecall;
    function Get_YMaxValue: Integer; safecall;
    procedure Set_YMaxValue(Value: Integer); safecall;
    function Get_PenWidth: Integer; safecall;
    procedure Set_PenWidth(Value: Integer); safecall;
    function Get_Text: WideString; safecall;
    procedure Set_Text(const Value: WideString); safecall;
  public
    procedure Initialize; override;
  end;

implementation

uses ComObj, ComServ, About;

{$R *.DFM}

{ TGraphX }

procedure TGraphX.DefinePropertyPages(DefinePropertyPage: TDefinePropertyPage);
begin
  { Define property pages here.  Property pages are defined by calling
    DefinePropertyPage with the class id of the page.  For example,
      DefinePropertyPage(Class_GraphXPage); }
end;

procedure TGraphX.EventSinkChanged(const EventSink: IUnknown);
begin
  FEvents := EventSink as IGraphXEvents;
  inherited EventSinkChanged(EventSink);
end;

procedure TGraphX.Initialize;
begin
  inherited Initialize;
  OnActivate := ActivateEvent;
  OnClick := ClickEvent;
  OnCreate := CreateEvent;
  OnDblClick := DblClickEvent;
  OnDeactivate := DeactivateEvent;
  OnDestroy := DestroyEvent;
  OnKeyPress := KeyPressEvent;
  OnPaint := PaintEvent;
  GraphBldr.DataEditor.AttrsManager.Add(RichEdit);
end;

function TGraphX.Get_Active: WordBool;
begin
  Result := Active;
end;

function TGraphX.Get_AlignDisabled: WordBool;
begin
  Result := AlignDisabled;
end;

function TGraphX.Get_AutoScroll: WordBool;
begin
  Result := AutoScroll;
end;

function TGraphX.Get_AutoSize: WordBool;
begin
  Result := AutoSize;
end;

function TGraphX.Get_AxBorderStyle: TxActiveFormBorderStyle;
begin
  Result := Ord(AxBorderStyle);
end;

function TGraphX.Get_Caption: WideString;
begin
  Result := WideString(Caption);
end;

function TGraphX.Get_Color: OLE_COLOR;
begin
  Result := OLE_COLOR(Color);
end;

function TGraphX.Get_Cursor: Smallint;
begin
  Result := Smallint(Cursor);
end;

function TGraphX.Get_DoubleBuffered: WordBool;
begin
  Result := DoubleBuffered;
end;

function TGraphX.Get_DropTarget: WordBool;
begin
  Result := DropTarget;
end;

function TGraphX.Get_Enabled: WordBool;
begin
  Result := Enabled;
end;

function TGraphX.Get_Font: IFontDisp;
begin
  GetOleFont(Font, Result);
end;

function TGraphX.Get_HelpFile: WideString;
begin
  Result := WideString(HelpFile);
end;

function TGraphX.Get_HelpKeyword: WideString;
begin
  Result := WideString(HelpKeyword);
end;

function TGraphX.Get_HelpType: TxHelpType;
begin
  Result := Ord(HelpType);
end;

function TGraphX.Get_KeyPreview: WordBool;
begin
  Result := KeyPreview;
end;

function TGraphX.Get_PixelsPerInch: Integer;
begin
  Result := PixelsPerInch;
end;

function TGraphX.Get_PrintScale: TxPrintScale;
begin
  Result := Ord(PrintScale);
end;

function TGraphX.Get_Scaled: WordBool;
begin
  Result := Scaled;
end;

function TGraphX.Get_Visible: WordBool;
begin
  Result := Visible;
end;

function TGraphX.Get_VisibleDockClientCount: Integer;
begin
  Result := VisibleDockClientCount;
end;

procedure TGraphX._Set_Font(var Value: IFontDisp);
begin
  SetOleFont(Font, Value);
end;

procedure TGraphX.AboutBox;
begin
  ShowGraphXAbout;
end;

procedure TGraphX.ActivateEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnActivate;
end;

procedure TGraphX.ClickEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnClick;
end;

procedure TGraphX.CreateEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnCreate;
end;

procedure TGraphX.DblClickEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnDblClick;
end;

procedure TGraphX.DeactivateEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnDeactivate;
end;

procedure TGraphX.DestroyEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnDestroy;
end;

procedure TGraphX.KeyPressEvent(Sender: TObject; var Key: Char);
var
  TempKey: Smallint;
begin
  TempKey := Smallint(Key);
  if FEvents <> nil then FEvents.OnKeyPress(TempKey);
  Key := Char(TempKey);
end;

procedure TGraphX.PaintEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnPaint;
end;

procedure TGraphX.Set_AutoScroll(Value: WordBool);
begin
  AutoScroll := Value;
end;

procedure TGraphX.Set_AutoSize(Value: WordBool);
begin
  AutoSize := Value;
end;

procedure TGraphX.Set_AxBorderStyle(Value: TxActiveFormBorderStyle);
begin
  AxBorderStyle := TActiveFormBorderStyle(Value);
end;

procedure TGraphX.Set_Caption(const Value: WideString);
begin
  Caption := TCaption(Value);
end;

procedure TGraphX.Set_Color(Value: OLE_COLOR);
begin
  Color := TColor(Value);
end;

procedure TGraphX.Set_Cursor(Value: Smallint);
begin
  Cursor := TCursor(Value);
end;

procedure TGraphX.Set_DoubleBuffered(Value: WordBool);
begin
  DoubleBuffered := Value;
end;

procedure TGraphX.Set_DropTarget(Value: WordBool);
begin
  DropTarget := Value;
end;

procedure TGraphX.Set_Enabled(Value: WordBool);
begin
  Enabled := Value;
end;

procedure TGraphX.Set_Font(const Value: IFontDisp);
begin
  SetOleFont(Font, Value);
end;

procedure TGraphX.Set_HelpFile(const Value: WideString);
begin
  HelpFile := String(Value);
end;

procedure TGraphX.Set_HelpKeyword(const Value: WideString);
begin
  HelpKeyword := String(Value);
end;

procedure TGraphX.Set_HelpType(Value: TxHelpType);
begin
  HelpType := THelpType(Value);
end;

procedure TGraphX.Set_KeyPreview(Value: WordBool);
begin
  KeyPreview := Value;
end;

procedure TGraphX.Set_PixelsPerInch(Value: Integer);
begin
  PixelsPerInch := Value;
end;

procedure TGraphX.Set_PrintScale(Value: TxPrintScale);
begin
  PrintScale := TPrintScale(Value);
end;

procedure TGraphX.Set_Scaled(Value: WordBool);
begin
  Scaled := Value;
end;

procedure TGraphX.Set_Visible(Value: WordBool);
begin
  Visible := Value;
end;

function TGraphX.Get_Detailization: Integer;
begin
  Result := GraphBldr.DetailLevel;
end;

procedure TGraphX.Set_Detailization(Value: Integer);
begin
  GraphBldr.DetailLevel := Value;
end;

function TGraphX.Get_XMaxValue: Integer;
begin
  Result := GraphBldr.XMaxValue;
end;

procedure TGraphX.Set_XMaxValue(Value: Integer);
begin
  GraphBldr.XMaxValue := Value;
end;

function TGraphX.Get_YMaxValue: Integer;
begin
  Result := GraphBldr.YMaxValue;
end;

procedure TGraphX.Set_YMaxValue(Value: Integer);
begin
  GraphBldr.YMaxValue := Value;
end;

function TGraphX.Get_PenWidth: Integer;
begin
  Result := GraphBldr.GraphPen.Width;
end;

procedure TGraphX.Set_PenWidth(Value: Integer);
begin
  GraphBldr.GraphPen.Width := Value;
end;

function TGraphX.Get_Text: WideString;
begin
  Result := GraphBldr.Text;
end;

procedure TGraphX.Set_Text(const Value: WideString);
begin
  GraphBldr.Text := Value;
end;

procedure TGraphX.EditCalculateExecute(Sender: TObject);
begin
  Screen.Cursor := crHourGlass;
  try
    with GraphBldr do begin
      Text := RichEdit.Text;
      try
        Calculate;
        StatusBar.Panels[2].Text := '';
      except
        on E: Exception do begin
          Clear;
          StatusBar.Panels[2].Text := E.Message;
        end;
      end;
      Draw;
    end;
  finally
    Screen.Cursor := crDefault;
  end;
end;

procedure TGraphX.EditShowGridExecute(Sender: TObject);
begin
  EditShowGrid.Checked := not EditShowGrid.Checked;
  with GraphBldr do begin
    ShowGrid := EditShowGrid.Checked;
    Draw;
  end;
end;

procedure TGraphX.EditAxisExecute(Sender: TObject);
begin
  EditAxis.Checked := not EditAxis.Checked;
  with GraphBldr do begin
    ShowAxis := EditAxis.Checked;
    Draw;
  end;
end;

procedure TGraphX.EditTraceExecute(Sender: TObject);
begin
  EditTrace.Checked := not EditTrace.Checked;
  with GraphBldr do begin
    Tracing := EditTrace.Checked;
    if not Tracing then StatusBar.Panels[1].Text := '';
    Draw;
  end;
end;

procedure TGraphX.EditCopyExecute(Sender: TObject);
begin
  ClipBoard.Assign(GraphBldr.Picture);
end;

procedure TGraphX.EditDeleteExecute(Sender: TObject);
begin
  with GraphBldr do begin
    Clear;
    with StatusBar do begin
      Panels[1].Text := '';
      Panels[2].Text := '';
    end;
    Draw;
  end;
end;

procedure TGraphX.EditGraphColorExecute(Sender: TObject);
begin
  ColorDialog.Color := GraphBldr.GraphPen.Color;
  if ColorDialog.Execute then with GraphBldr do begin
    GraphPen.Color := ColorDialog.Color;
    Draw;
  end;
end;

procedure TGraphX.GraphBldrMouseMove(Sender: TObject; Shift: TShiftState;
  X, Y: Integer);
begin
  StatusBar.Panels[0].Text := Format('%f: %f',
    [GraphBldr.XCoord(X), GraphBldr.YCoord(Y)]);
  PostMessage(StatusBar.Handle, WM_PAINT, 0, 0);
end;

procedure TGraphX.GraphBldrTrace(Sender: TObject; X, Y: Double);
begin
  StatusBar.Panels[2].Text := Format('Tracing: %f: %f', [X, Y]);
end;

procedure TGraphX.edTextKeyPress(Sender: TObject; var Key: Char);
begin
  if Key = #13 then begin
    Key := #0;
    EditCalculateExecute(nil);
  end;
end;

procedure TGraphX.RichEditKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if Key = VK_RETURN then EditCalculate.Execute;
end;

procedure TGraphX.tbDetailLevelChange(Sender: TObject);
begin
  GraphBldr.DetailLevel := tbDetailLevel.Position;
end;

procedure TGraphX.edXMaxValueChange(Sender: TObject);
begin
  with GraphBldr do begin
    XMaxValue := udXMaxValue.Position;
    if Trim(Text) <> '' then Calculate;
    Draw;
  end;
end;

procedure TGraphX.edYMaxValueChange(Sender: TObject);
begin
  with GraphBldr do begin
    YMaxValue := udYMaxValue.Position;
    if Trim(Text) <> '' then Calculate;
    Draw;
  end;
end;

procedure TGraphX.edPenWidthChange(Sender: TObject);
begin
  with GraphBldr do begin
    GraphPen.Width := udPenWidth.Position;
    Draw;
  end;
end;

procedure TGraphX.edHorzSpacingChange(Sender: TObject);
begin
  with GraphBldr do begin
    HorzSpacing := udHorzSpacing.Position;
    Draw;
  end;
end;

procedure TGraphX.edVertSpacingChange(Sender: TObject);
begin
  with GraphBldr do begin
    VertSpacing := udVertSpacing.Position;
    Draw;
  end;
end;

procedure TGraphX.EditKeyPress(Sender: TObject; var Key: Char);
begin
  if not (Key in ['0'..'9', #8]) then Key := #0;
end;

procedure TGraphX.HelpAboutExecute(Sender: TObject);
begin
  AboutBox;
end;

initialization
  TActiveFormFactory.Create(
    ComServer,
    TActiveFormControl,
    TGraphX,
    Class_GraphX,
    1,
    '',
    OLEMISC_SIMPLEFRAME or OLEMISC_ACTSLIKELABEL,
    tmApartment);
end.