jlislo
asked on
Design a graphic editer program.
I want to create a application to let user create graphic object on a background image. User can do things to the graphic object like programmer can do in design mode (Delphi IDE). For example resize, move, select, bring to front, send to back...etc
User can create TShape, TLabel, TEdit ... graphic object. Min property editing. Save and load functions.
I like to know the concept behind those functions. If you have sample code to do all and want more points feel free to let me know.
Thanks.
JL
User can create TShape, TLabel, TEdit ... graphic object. Min property editing. Save and load functions.
I like to know the concept behind those functions. If you have sample code to do all and want more points feel free to let me know.
Thanks.
JL
ASKER
Yes, you are right. I try to add some graphic shape and text on top of a image. And let user move, resize... those object. For start, when user click on the object I want to display the object with 8 square box (4 on each corner and 4 in the middle of each side).
Any book or document to teach you how to design a graphic editor program?
Do I have to handel the mousedown, mousemove and mouseup for each obj? Or I can create a continer to hold the graphic objs to do those thing?
Thanks.
JL
Any book or document to teach you how to design a graphic editor program?
Do I have to handel the mousedown, mousemove and mouseup for each obj? Or I can create a continer to hold the graphic objs to do those thing?
Thanks.
JL
To do a full graphic editor program would take some one wilth much API graphic experience, a Long Time to do. You may want to learn how to do more basic graphical operations first. And YES you will need to handle ALL mouse and keyboard events on your display. I have some code for a graphic "Object" display and edit on a TPaintBox, if you would like to see the code. . .
Do you have experience with basic graphical operations, like Canvas.Rectangle( ),, Canvas.DrawFocusRect( ), or Canvas.Elispse( ). . . ? ?
Do you have experience with basic graphical operations, like Canvas.Rectangle( ),, Canvas.DrawFocusRect( ), or Canvas.Elispse( ). . . ? ?
ASKER
I would love to. If you think 125 point is good enough for you. :-)
my email is jlli@qts.com Thanks.
JL
my email is jlli@qts.com Thanks.
JL
you did NOT answer my question about knowing something about graphical methods, oh well. . . . Here is all the code for simple graphic "Object" program, I do not have time to comment and explain in this code, if you do not have much experience, then you may not be able to use this.
unit GrafEdit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, ExtCtrls, Buttons;
type
TGraficObj = Record
PosRect: TRect;
FillColor, PenColor: TColor;
PenWidth: Byte;
Fill: Boolean;
Layer, ObjType, ShapeIndex: Integer;
Text: String[255];
TextFace: String[64];
TextSize : Integer;
end;
TForm1 = class(TForm)
PaintBox1: TPaintBox;
sbut_Shape: TSpeedButton;
RadioGroup1: TRadioGroup;
sbut_Text: TSpeedButton;
sbut_FreeHand: TSpeedButton;
CheckBox_Fill: TCheckBox;
sbut_Select: TSpeedButton;
Edit1: TEdit;
procedure FormCreate(Sender: TObject);
procedure PaintBox1Paint(Sender: TObject);
procedure PaintBox1MouseDown(Sender:
Shift: TShiftState; X, Y: Integer);
procedure PaintBox1MouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure PaintBox1MouseMove(Sender:
Y: Integer);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure sbut_SelectClick(Sender: TObject);
procedure sbut_ShapeClick(Sender: TObject);
procedure sbut_TextClick(Sender: TObject);
private
{ Private declarations }
PB_Bmp: TBitmap;
ObjType, SelNum, OffX, OffY{, LastX, LastY}: Integer;
DrawStart: TPoint;
DrawRect: TRect;
Drawing, Moving, Sizing: Boolean;
Side: Char;
GrafAry: Array of TGraficObj;
procedure DrawShape(Index1: Integer);
procedure PaintText(Index1: Integer);
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
procedure TForm1.FormCreate(Sender: TObject);
begin
ObjType := -1;
SelNum := -1;
Drawing := False;
Moving := False;
Sizing := False;
PB_Bmp := TBitmap.Create;
PB_Bmp.Canvas.Brush.Color := $D0FBFF;
PB_Bmp.Width := PaintBox1.Width;
PB_Bmp.Height := PaintBox1.Height;
PB_Bmp.Canvas.TextOut(40,1
end;
procedure TForm1.PaintText(Index1: Integer);
begin
if GrafAry[Index1].Fill then
PaintBox1.Canvas.Brush.Col
else PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Font.Name
PaintBox1.Canvas.Font.Size
PaintBox1.Canvas.TextOut(G
end;
procedure TForm1.DrawShape(Index1: Integer);
var
AryPnt1: Array[0..2] of TPoint;
begin
if GrafAry[Index1].Fill then
PaintBox1.Canvas.Brush.Col
else PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Pen.Color
PaintBox1.Canvas.Pen.Width
case GrafAry[Index1].ShapeIndex
0: PaintBox1.Canvas.Rectangle
1: PaintBox1.Canvas.Ellipse(G
2: begin
AryPnt1[0].x := GrafAry[Index1].PosRect.Le
AryPnt1[0].y := GrafAry[Index1].PosRect.To
AryPnt1[1].x := GrafAry[Index1].PosRect.Le
AryPnt1[1].y := GrafAry[Index1].PosRect.Bo
AryPnt1[2].x := GrafAry[Index1].PosRect.Ri
AryPnt1[2].y := GrafAry[Index1].PosRect.Bo
PaintBox1.Canvas.Polygon(A
end;
end;
end;
procedure TForm1.PaintBox1Paint(Send
var
i: Integer;
begin
PaintBox1.Canvas.Draw(0,0,
for i := 0 to High(GrafAry) do
begin
if GrafAry[i].ObjType = 0 then
DrawShape(i);
if GrafAry[i].ObjType = 1 then
PaintText(i);
end;
if SelNum > -1 then
begin
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Pen.Color
PaintBox1.Canvas.Pen.Width
PaintBox1.Canvas.Pen.Mode := pmNot;
PaintBox1.Canvas.Rectangle
PaintBox1.Canvas.Pen.Mode := pmCopy;
PaintBox1.Canvas.Brush.Sty
//PaintBox1.Canvas.DrawFoc
end;
end;
procedure TForm1.PaintBox1MouseDown(
Shift: TShiftState; X, Y: Integer);
var
i: Integer;
Pnt1: TPoint;
begin
if Button = mbLeft then
begin
if ObjType = -1 then
begin
if PaintBox1.Cursor = crSizeWE then
begin
Sizing := True;
if (X < DrawRect.Left+ 3) and (X > DrawRect.Left -3) then
Side := 'L'
else
Side := 'R';
Exit;
end else
if PaintBox1.Cursor = crSizeNS then
begin
Sizing := True;
if (Y < DrawRect.Top+ 3) and (Y > DrawRect.Top -3) then
Side := 'T'
else
Side := 'B';
Exit;
end;
Drawing := False;
Pnt1.x := X;
Pnt1.y := Y;
for i := High(GrafAry) downTo 0 do
begin
if PtInRect(GrafAry[i].PosRec
begin
Moving := True;
OffX := GrafAry[i].PosRect.Left - X;
OffY := GrafAry[i].PosRect.Top - Y;
DrawStart.x := GrafAry[i].PosRect.Left;
DrawStart.y := GrafAry[i].PosRect.Top;
DrawRect := GrafAry[i].PosRect;
if i <> SelNum then
begin
SelNum := i;
PaintBox1Paint(PaintBox1);
end;
Break;
end;
end;
end else
begin
DrawStart.x := X;
DrawStart.y:= Y;
DrawRect.Left := X;
DrawRect.Top := Y;
DrawRect.Right := X;
DrawRect.Bottom := Y;
if ObjType <> 1 then
Drawing := True;
end;
end;
end;
procedure TForm1.PaintBox1MouseUp(Se
Shift: TShiftState; X, Y: Integer);
begin
Drawing := False;
if Sizing then
begin
GrafAry[SelNum].PosRect := DrawRect;
PaintBox1Paint(PaintBox1);
Sizing := False;
Exit;
end;
if Moving then
begin
if (DrawStart.x <> DrawRect.Left) and (DrawStart.x <> DrawRect.Top) then
begin
GrafAry[SelNum].PosRect := DrawRect;
PaintBox1Paint(PaintBox1);
end;
Moving := False;
Exit;
end;
if (ObjType <> -1) then
PaintBox1.Canvas.DrawFocus
if ObjType = 0 then
begin
SetLength(GrafAry, Length(GrafAry)+1);
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Obj
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Lay
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Pen
GrafAry[High(GrafAry)].Pen
GrafAry[High(GrafAry)].Sha
DrawShape(High(GrafAry));
end;
if (ObjType = 1) and (Length(Edit1.Text) > 0) then
begin
SetLength(GrafAry, Length(GrafAry)+1);
GrafAry[High(GrafAry)].Obj
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Tex
GrafAry[High(GrafAry)].Tex
GrafAry[High(GrafAry)].Tex
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Pos
if GrafAry[High(GrafAry)].Fil
PaintBox1.Canvas.Brush.Col
else PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Font.Name
PaintBox1.Canvas.Font.Size
GrafAry[High(GrafAry)].Pos
PaintBox1.Canvas.TextWidth
GrafAry[High(GrafAry)].Pos
PaintBox1.Canvas.TextHeigh
PaintBox1.Canvas.TextOut(X
end;
end;
procedure TForm1.PaintBox1MouseMove(
Y: Integer);
begin
if Sizing then
begin
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.DrawFocus
if Side = 'T' then
DrawRect.Top := Y
else
if Side = 'L' then
DrawRect.Left := X
else
if Side = 'R' then
DrawRect.Right := X
else
if Side = 'B' then
DrawRect.Bottom := Y
else DrawRect.Top := Y;
PaintBox1.Canvas.DrawFocus
Exit;
end;
if (ObjType = -1) and (SelNum > -1) then
begin
{these boolean tests set the Cursor if over the DrawRect}
if GrafAry[SelNum].ObjType = 0 then
if (Y > DrawRect.Top-4) and (Y < DrawRect.Bottom +4) and
((X < DrawRect.Left+ 4) and (X > DrawRect.Left -4) or
(X < DrawRect.Right+ 4) and (X > DrawRect.Right -4)) then
PaintBox1.Cursor := crSizeWE else
if (X > DrawRect.Left- 4) and (X < DrawRect.Right +4) and
((Y < DrawRect.Top+ 4) and (Y > DrawRect.Top -4) or
(Y < DrawRect.Bottom+ 4) and (Y > DrawRect.Bottom -4)) then
PaintBox1.Cursor := crSizeNS else
PaintBox1.Cursor := crDefault;
end;
if Drawing then
if (X <> DrawRect.Right) and (Y <> DrawRect.Bottom) then
begin
PaintBox1.Canvas.DrawFocus
if X >= DrawStart.x then
begin
if DrawRect.Left <> DrawStart.x then
DrawRect.Left := DrawStart.x;
DrawRect.Right := X
end else
begin
if DrawRect.Right <> DrawStart.x then
DrawRect.Right := DrawStart.x;
DrawRect.Left := X;
end;
if Y >= DrawStart.y then
begin
if DrawRect.Top <> DrawStart.y then
DrawRect.Top := DrawStart.y;
DrawRect.Bottom := Y;
end else
begin
if DrawRect.Bottom <> DrawStart.y then
DrawRect.Bottom := DrawStart.y;
DrawRect.Top := Y;
end;
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.DrawFocus
end;
if Moving then
begin
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.DrawFocus
DrawRect.Right := DrawRect.Right - DrawRect.Left + X + OffX;
DrawRect.Bottom := DrawRect.Bottom - DrawRect.Top + Y+ OffY;
DrawRect.Left := X+ OffX;
DrawRect.Top := Y+ OffY;
PaintBox1.Canvas.DrawFocus
end;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
PB_Bmp.Free;
end;
procedure TForm1.sbut_SelectClick(Se
begin
PaintBox1.Cursor := crArrow;
ObjType := -1;
SelNum := -1;
PaintBox1Paint(PaintBox1);
end;
procedure TForm1.sbut_ShapeClick(Sen
begin
PaintBox1.Cursor := crDrag;
ObjType := 0;
SelNum := -1;
PaintBox1Paint(PaintBox1);
end;
procedure TForm1.sbut_TextClick(Send
begin
PaintBox1.Cursor := crCross;
ObjType := 1;
SelNum := -1;
PaintBox1Paint(PaintBox1);
end;
end.
- - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --
ask questions if you need some help
unit GrafEdit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, ExtCtrls, Buttons;
type
TGraficObj = Record
PosRect: TRect;
FillColor, PenColor: TColor;
PenWidth: Byte;
Fill: Boolean;
Layer, ObjType, ShapeIndex: Integer;
Text: String[255];
TextFace: String[64];
TextSize : Integer;
end;
TForm1 = class(TForm)
PaintBox1: TPaintBox;
sbut_Shape: TSpeedButton;
RadioGroup1: TRadioGroup;
sbut_Text: TSpeedButton;
sbut_FreeHand: TSpeedButton;
CheckBox_Fill: TCheckBox;
sbut_Select: TSpeedButton;
Edit1: TEdit;
procedure FormCreate(Sender: TObject);
procedure PaintBox1Paint(Sender: TObject);
procedure PaintBox1MouseDown(Sender:
Shift: TShiftState; X, Y: Integer);
procedure PaintBox1MouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure PaintBox1MouseMove(Sender:
Y: Integer);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure sbut_SelectClick(Sender: TObject);
procedure sbut_ShapeClick(Sender: TObject);
procedure sbut_TextClick(Sender: TObject);
private
{ Private declarations }
PB_Bmp: TBitmap;
ObjType, SelNum, OffX, OffY{, LastX, LastY}: Integer;
DrawStart: TPoint;
DrawRect: TRect;
Drawing, Moving, Sizing: Boolean;
Side: Char;
GrafAry: Array of TGraficObj;
procedure DrawShape(Index1: Integer);
procedure PaintText(Index1: Integer);
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
procedure TForm1.FormCreate(Sender: TObject);
begin
ObjType := -1;
SelNum := -1;
Drawing := False;
Moving := False;
Sizing := False;
PB_Bmp := TBitmap.Create;
PB_Bmp.Canvas.Brush.Color := $D0FBFF;
PB_Bmp.Width := PaintBox1.Width;
PB_Bmp.Height := PaintBox1.Height;
PB_Bmp.Canvas.TextOut(40,1
end;
procedure TForm1.PaintText(Index1: Integer);
begin
if GrafAry[Index1].Fill then
PaintBox1.Canvas.Brush.Col
else PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Font.Name
PaintBox1.Canvas.Font.Size
PaintBox1.Canvas.TextOut(G
end;
procedure TForm1.DrawShape(Index1: Integer);
var
AryPnt1: Array[0..2] of TPoint;
begin
if GrafAry[Index1].Fill then
PaintBox1.Canvas.Brush.Col
else PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Pen.Color
PaintBox1.Canvas.Pen.Width
case GrafAry[Index1].ShapeIndex
0: PaintBox1.Canvas.Rectangle
1: PaintBox1.Canvas.Ellipse(G
2: begin
AryPnt1[0].x := GrafAry[Index1].PosRect.Le
AryPnt1[0].y := GrafAry[Index1].PosRect.To
AryPnt1[1].x := GrafAry[Index1].PosRect.Le
AryPnt1[1].y := GrafAry[Index1].PosRect.Bo
AryPnt1[2].x := GrafAry[Index1].PosRect.Ri
AryPnt1[2].y := GrafAry[Index1].PosRect.Bo
PaintBox1.Canvas.Polygon(A
end;
end;
end;
procedure TForm1.PaintBox1Paint(Send
var
i: Integer;
begin
PaintBox1.Canvas.Draw(0,0,
for i := 0 to High(GrafAry) do
begin
if GrafAry[i].ObjType = 0 then
DrawShape(i);
if GrafAry[i].ObjType = 1 then
PaintText(i);
end;
if SelNum > -1 then
begin
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Pen.Color
PaintBox1.Canvas.Pen.Width
PaintBox1.Canvas.Pen.Mode := pmNot;
PaintBox1.Canvas.Rectangle
PaintBox1.Canvas.Pen.Mode := pmCopy;
PaintBox1.Canvas.Brush.Sty
//PaintBox1.Canvas.DrawFoc
end;
end;
procedure TForm1.PaintBox1MouseDown(
Shift: TShiftState; X, Y: Integer);
var
i: Integer;
Pnt1: TPoint;
begin
if Button = mbLeft then
begin
if ObjType = -1 then
begin
if PaintBox1.Cursor = crSizeWE then
begin
Sizing := True;
if (X < DrawRect.Left+ 3) and (X > DrawRect.Left -3) then
Side := 'L'
else
Side := 'R';
Exit;
end else
if PaintBox1.Cursor = crSizeNS then
begin
Sizing := True;
if (Y < DrawRect.Top+ 3) and (Y > DrawRect.Top -3) then
Side := 'T'
else
Side := 'B';
Exit;
end;
Drawing := False;
Pnt1.x := X;
Pnt1.y := Y;
for i := High(GrafAry) downTo 0 do
begin
if PtInRect(GrafAry[i].PosRec
begin
Moving := True;
OffX := GrafAry[i].PosRect.Left - X;
OffY := GrafAry[i].PosRect.Top - Y;
DrawStart.x := GrafAry[i].PosRect.Left;
DrawStart.y := GrafAry[i].PosRect.Top;
DrawRect := GrafAry[i].PosRect;
if i <> SelNum then
begin
SelNum := i;
PaintBox1Paint(PaintBox1);
end;
Break;
end;
end;
end else
begin
DrawStart.x := X;
DrawStart.y:= Y;
DrawRect.Left := X;
DrawRect.Top := Y;
DrawRect.Right := X;
DrawRect.Bottom := Y;
if ObjType <> 1 then
Drawing := True;
end;
end;
end;
procedure TForm1.PaintBox1MouseUp(Se
Shift: TShiftState; X, Y: Integer);
begin
Drawing := False;
if Sizing then
begin
GrafAry[SelNum].PosRect := DrawRect;
PaintBox1Paint(PaintBox1);
Sizing := False;
Exit;
end;
if Moving then
begin
if (DrawStart.x <> DrawRect.Left) and (DrawStart.x <> DrawRect.Top) then
begin
GrafAry[SelNum].PosRect := DrawRect;
PaintBox1Paint(PaintBox1);
end;
Moving := False;
Exit;
end;
if (ObjType <> -1) then
PaintBox1.Canvas.DrawFocus
if ObjType = 0 then
begin
SetLength(GrafAry, Length(GrafAry)+1);
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Obj
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Lay
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Pen
GrafAry[High(GrafAry)].Pen
GrafAry[High(GrafAry)].Sha
DrawShape(High(GrafAry));
end;
if (ObjType = 1) and (Length(Edit1.Text) > 0) then
begin
SetLength(GrafAry, Length(GrafAry)+1);
GrafAry[High(GrafAry)].Obj
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Tex
GrafAry[High(GrafAry)].Tex
GrafAry[High(GrafAry)].Tex
GrafAry[High(GrafAry)].Fil
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Pos
GrafAry[High(GrafAry)].Pos
if GrafAry[High(GrafAry)].Fil
PaintBox1.Canvas.Brush.Col
else PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.Font.Name
PaintBox1.Canvas.Font.Size
GrafAry[High(GrafAry)].Pos
PaintBox1.Canvas.TextWidth
GrafAry[High(GrafAry)].Pos
PaintBox1.Canvas.TextHeigh
PaintBox1.Canvas.TextOut(X
end;
end;
procedure TForm1.PaintBox1MouseMove(
Y: Integer);
begin
if Sizing then
begin
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.DrawFocus
if Side = 'T' then
DrawRect.Top := Y
else
if Side = 'L' then
DrawRect.Left := X
else
if Side = 'R' then
DrawRect.Right := X
else
if Side = 'B' then
DrawRect.Bottom := Y
else DrawRect.Top := Y;
PaintBox1.Canvas.DrawFocus
Exit;
end;
if (ObjType = -1) and (SelNum > -1) then
begin
{these boolean tests set the Cursor if over the DrawRect}
if GrafAry[SelNum].ObjType = 0 then
if (Y > DrawRect.Top-4) and (Y < DrawRect.Bottom +4) and
((X < DrawRect.Left+ 4) and (X > DrawRect.Left -4) or
(X < DrawRect.Right+ 4) and (X > DrawRect.Right -4)) then
PaintBox1.Cursor := crSizeWE else
if (X > DrawRect.Left- 4) and (X < DrawRect.Right +4) and
((Y < DrawRect.Top+ 4) and (Y > DrawRect.Top -4) or
(Y < DrawRect.Bottom+ 4) and (Y > DrawRect.Bottom -4)) then
PaintBox1.Cursor := crSizeNS else
PaintBox1.Cursor := crDefault;
end;
if Drawing then
if (X <> DrawRect.Right) and (Y <> DrawRect.Bottom) then
begin
PaintBox1.Canvas.DrawFocus
if X >= DrawStart.x then
begin
if DrawRect.Left <> DrawStart.x then
DrawRect.Left := DrawStart.x;
DrawRect.Right := X
end else
begin
if DrawRect.Right <> DrawStart.x then
DrawRect.Right := DrawStart.x;
DrawRect.Left := X;
end;
if Y >= DrawStart.y then
begin
if DrawRect.Top <> DrawStart.y then
DrawRect.Top := DrawStart.y;
DrawRect.Bottom := Y;
end else
begin
if DrawRect.Bottom <> DrawStart.y then
DrawRect.Bottom := DrawStart.y;
DrawRect.Top := Y;
end;
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.DrawFocus
end;
if Moving then
begin
PaintBox1.Canvas.Brush.Sty
PaintBox1.Canvas.DrawFocus
DrawRect.Right := DrawRect.Right - DrawRect.Left + X + OffX;
DrawRect.Bottom := DrawRect.Bottom - DrawRect.Top + Y+ OffY;
DrawRect.Left := X+ OffX;
DrawRect.Top := Y+ OffY;
PaintBox1.Canvas.DrawFocus
end;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
PB_Bmp.Free;
end;
procedure TForm1.sbut_SelectClick(Se
begin
PaintBox1.Cursor := crArrow;
ObjType := -1;
SelNum := -1;
PaintBox1Paint(PaintBox1);
end;
procedure TForm1.sbut_ShapeClick(Sen
begin
PaintBox1.Cursor := crDrag;
ObjType := 0;
SelNum := -1;
PaintBox1Paint(PaintBox1);
end;
procedure TForm1.sbut_TextClick(Send
begin
PaintBox1.Cursor := crCross;
ObjType := 1;
SelNum := -1;
PaintBox1Paint(PaintBox1);
end;
end.
- - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --
ask questions if you need some help
ASKER
I am so sorry I did miss your question. I have a lot experance in graphic programming but not graphic editor type related. That is why I try to focus on editing part. For example to me showing the 8 square box should be an exist function since the design mode already doing it.
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
ASKER
I am so sorry I did miss your question. I have a lot experance in graphic programming but not graphic editor type related. That is why I try to focus on editing part. For example to me showing the 8 square box should be an exist function since the design mode already doing it.
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
ASKER
I am so sorry I did miss your question. I have a lot experance in graphic programming but not graphic editor type related. That is why I try to focus on editing part. For example to me showing the 8 square box should be an exist function since the design mode already doing it.
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
ASKER
I am so sorry I did miss your question. I have a lot experance in graphic programming but not graphic editor type related. That is why I try to focus on editing part. For example to me showing the 8 square box should be an exist function since the design mode already doing it.
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
Do you mind sending me the dfm that will help a lot.
Thanks.
JL
???????
there are several buttons and an TEdit and one check box, the specs of my form should not matter much at all, the important aspects of this are the mouse messages for the TPaintBox. . you should be able to get all of the info you need from the Form Class definitions, speedbuttons, Edits, check boxes, paint boxes. . . but here it is -
object Form1: TForm1
Left = 192
Top = 114
Width = 883
Height = 740
Caption = 'Form1'
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Sans Serif'
Font.Style = []
OldCreateOrder = False
OnClose = FormClose
OnCreate = FormCreate
PixelsPerInch = 96
TextHeight = 13
object PaintBox1: TPaintBox
Left = 0
Top = 0
Width = 489
Height = 393
OnMouseDown = PaintBox1MouseDown
OnMouseMove = PaintBox1MouseMove
OnMouseUp = PaintBox1MouseUp
OnPaint = PaintBox1Paint
end
object sbut_Shape: TSpeedButton
Left = 560
Top = 96
Width = 57
Height = 22
Caption = 'Shape'
OnClick = sbut_ShapeClick
end
object sbut_Text: TSpeedButton
Left = 568
Top = 216
Width = 57
Height = 22
Caption = 'Text'
OnClick = sbut_TextClick
end
object sbut_FreeHand: TSpeedButton
Left = 568
Top = 328
Width = 97
Height = 22
Caption = 'FreeHand Shape'
end
object sbut_Select: TSpeedButton
Left = 552
Top = 16
Width = 65
Height = 22
Caption = 'Select'
OnClick = sbut_SelectClick
end
object RadioGroup1: TRadioGroup
Left = 648
Top = 88
Width = 97
Height = 113
Caption = 'Shape'
ItemIndex = 0
Items.Strings = (
'Rectangle'
'Ellipise'
'Triangle'
'Pentagram'
'Hexagram')
TabOrder = 0
end
object CheckBox_Fill: TCheckBox
Left = 560
Top = 128
Width = 73
Height = 17
Caption = 'Fill Shape'
Checked = True
State = cbChecked
TabOrder = 1
end
object Edit1: TEdit
Left = 568
Top = 248
Width = 201
Height = 21
MaxLength = 255
TabOrder = 2
Text = 'Text'
end
end
there are several buttons and an TEdit and one check box, the specs of my form should not matter much at all, the important aspects of this are the mouse messages for the TPaintBox. . you should be able to get all of the info you need from the Form Class definitions, speedbuttons, Edits, check boxes, paint boxes. . . but here it is -
object Form1: TForm1
Left = 192
Top = 114
Width = 883
Height = 740
Caption = 'Form1'
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Sans Serif'
Font.Style = []
OldCreateOrder = False
OnClose = FormClose
OnCreate = FormCreate
PixelsPerInch = 96
TextHeight = 13
object PaintBox1: TPaintBox
Left = 0
Top = 0
Width = 489
Height = 393
OnMouseDown = PaintBox1MouseDown
OnMouseMove = PaintBox1MouseMove
OnMouseUp = PaintBox1MouseUp
OnPaint = PaintBox1Paint
end
object sbut_Shape: TSpeedButton
Left = 560
Top = 96
Width = 57
Height = 22
Caption = 'Shape'
OnClick = sbut_ShapeClick
end
object sbut_Text: TSpeedButton
Left = 568
Top = 216
Width = 57
Height = 22
Caption = 'Text'
OnClick = sbut_TextClick
end
object sbut_FreeHand: TSpeedButton
Left = 568
Top = 328
Width = 97
Height = 22
Caption = 'FreeHand Shape'
end
object sbut_Select: TSpeedButton
Left = 552
Top = 16
Width = 65
Height = 22
Caption = 'Select'
OnClick = sbut_SelectClick
end
object RadioGroup1: TRadioGroup
Left = 648
Top = 88
Width = 97
Height = 113
Caption = 'Shape'
ItemIndex = 0
Items.Strings = (
'Rectangle'
'Ellipise'
'Triangle'
'Pentagram'
'Hexagram')
TabOrder = 0
end
object CheckBox_Fill: TCheckBox
Left = 560
Top = 128
Width = 73
Height = 17
Caption = 'Fill Shape'
Checked = True
State = cbChecked
TabOrder = 1
end
object Edit1: TEdit
Left = 568
Top = 248
Width = 201
Height = 21
MaxLength = 255
TabOrder = 2
Text = 'Text'
end
end
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ASKER
Thanks, It work great. this will get me start.
but then you say
"User can create TShape, TLabel, TEdit ... graphic object"
what do you mean? ? For me a TLabel and a TEdit are NOT in a graphic editer program? Do you want to have shapes and text on your drawing board that are separate objects to be clicked and moved, , that may take alot of effort?