Componentes.Terceros.FastRe.../internal/4.2/1/Source/frxDesgnWorkspace1.pas
2007-11-18 19:40:07 +00:00

1094 lines
29 KiB
ObjectPascal

{******************************************}
{ }
{ FastReport v4.0 }
{ Designer workspace }
{ }
{ Copyright (c) 1998-2007 }
{ by Alexander Tzyganenko, }
{ Fast Reports Inc. }
{ }
{******************************************}
unit frxDesgnWorkspace1;
interface
{$I frx.inc}
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, StdCtrls, Buttons, frxClass, frxDesgn,
frxDesgnWorkspace, frxPopupForm
{$IFDEF Delphi6}
, Variants
{$ENDIF};
type
TfrxDesignTool = (dtSelect, dtHand, dtZoom, dtText, dtFormat);
TfrxGuideItem = class(TCollectionItem)
public
Left, Top, Right, Bottom: Extended;
end;
TfrxVirtualGuides = class(TCollection)
private
function GetGuides(Index: Integer): TfrxGuideItem;
public
constructor Create;
procedure Add(Left, Top, Right, Bottom: Extended);
property Items[Index: Integer]: TfrxGuideItem read GetGuides; default;
end;
TDesignerWorkspace = class(TfrxDesignerWorkspace)
private
FDesigner: TfrxDesignerForm;
FGuide: Integer;
FListBox: TListBox;
FMemo: TfrxMemoView;
FPopupForm: TfrxPopupForm;
FPopupFormVisible: Boolean;
FShowGuides: Boolean;
FSimulateMove: Boolean;
FTool: TfrxDesignTool;
FVirtualGuides: TfrxVirtualGuides;
FVirtualGuideObjects: TList;
procedure DoLBClick(Sender: TObject);
procedure DoPopupHide(Sender: TObject);
procedure CreateVirtualGuides;
procedure LBDrawItem(Control: TWinControl; Index: Integer;
ARect: TRect; State: TOwnerDrawState);
procedure SetShowGuides(const Value: Boolean);
procedure SetHGuides(const Value: TStrings);
procedure SetVGuides(const Value: TStrings);
function GetHGuides: TStrings;
function GetVGuides: TStrings;
property HGuides: TStrings read GetHGuides write SetHGuides;
property VGuides: TStrings read GetVGuides write SetVGuides;
procedure SetTool(const Value: TfrxDesignTool);
protected
procedure CheckGuides(var kx, ky: Extended; var Result: Boolean); override;
procedure DragOver(Source: TObject; X, Y: Integer; State: TDragState;
var Accept: Boolean); override;
procedure DrawObjects; override;
procedure KeyDown(var Key: Word; Shift: TShiftState); override;
procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
X, Y: Integer); override;
procedure MouseMove(Shift: TShiftState; X, Y: Integer); override;
procedure MouseUp(Button: TMouseButton; Shift: TShiftState;
X, Y: Integer); override;
procedure DblClick; override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure DeleteObjects; override;
procedure DragDrop(Source: TObject; X, Y: Integer); override;
procedure SimulateMove;
procedure SetInsertion(AClass: TfrxComponentClass;
AWidth, AHeight: Extended; AFlag: Word); override;
property ShowGuides: Boolean read FShowGuides write SetShowGuides;
property Tool: TfrxDesignTool read FTool write SetTool;
end;
implementation
uses
ComCtrls, frxDesgnCtrls, frxUtils, frxDataTree, frxDMPClass, frxRes;
type
THackMemo = class(TfrxCustomMemoView);
function Round8(e: Extended): Extended;
begin
Result := Round(e * 100000000) / 100000000;
end;
function ToIdent(const s: String): String;
var
I: Integer;
begin
Result := '';
for i := 1 to Length(s) do
if i = 1 then
begin
if s[i] in ['A'..'Z','a'..'z','_'] then
Result := Result + s[i]
end
else if s[i] in ['A'..'Z','a'..'z','_','0'..'9'] then
Result := Result + s[i];
if Length(Result) < Length(s) * 2 div 3 then
Result := 'Memo';
end;
{ TfrxVirtualGuides }
constructor TfrxVirtualGuides.Create;
begin
inherited Create(TfrxGuideItem);
end;
procedure TfrxVirtualGuides.Add(Left, Top, Right, Bottom: Extended);
var
Item: TfrxGuideItem;
begin
Item := TfrxGuideItem(inherited Add);
Item.Left := Left;
Item.Top := Top;
Item.Right := Right;
Item.Bottom := Bottom;
end;
function TfrxVirtualGuides.GetGuides(Index: Integer): TfrxGuideItem;
begin
Result := TfrxGuideItem(inherited Items[Index]);
end;
{ TDesignerWorkspace }
constructor TDesignerWorkspace.Create(AOwner: TComponent);
begin
inherited;
FDesigner := TfrxDesignerForm(AOwner);
FVirtualGuides := TfrxVirtualGuides.Create;
FVirtualGuideObjects := TList.Create;
end;
destructor TDesignerWorkspace.Destroy;
begin
FVirtualGuides.Free;
FVirtualGuideObjects.Free;
inherited;
end;
procedure TDesignerWorkspace.DeleteObjects;
var
i: Integer;
NeedReload: Boolean;
begin
NeedReload := False;
for i := 0 to FSelectedObjects.Count - 1 do
if TObject(FSelectedObjects[i]) is TfrxSubreport then
NeedReload := True;
FMemo := nil;
inherited;
if NeedReload then
FDesigner.ReloadPages(FDesigner.Report.Objects.IndexOf(Page));
end;
procedure TDesignerWorkspace.SetInsertion(AClass: TfrxComponentClass;
AWidth, AHeight: Extended; AFlag: Word);
begin
inherited;
CreateVirtualGuides;
end;
procedure TDesignerWorkspace.DrawObjects;
var
r: TRect;
i, d: Integer;
begin
if FDesigner.Page is TfrxReportPage then
with TfrxReportPage(FDesigner.Page) do
if Columns > 1 then
for i := 0 to Columns - 1 do
begin
d := Round(frxStrToFloat(ColumnPositions[i]) * fr01cm * FScale);
if d = 0 then continue;
FCanvas.Pen.Color := clSilver;
FCanvas.MoveTo(d, 0);
FCanvas.LineTo(d, Self.Height);
end;
if FShowGuides and (FPage is TfrxReportPage) then
begin
with FCanvas do
begin
Pen.Width := 1;
Pen.Style := psSolid;
Pen.Color := $FFCC00;
Pen.Mode := pmCopy;
end;
for i := 0 to HGuides.Count - 1 do
begin
d := Round(frxStrToFloat(HGuides[i]) * Scale);
FCanvas.MoveTo(0, d);
FCanvas.LineTo(Width, d);
end;
for i := 0 to VGuides.Count - 1 do
begin
d := Round(frxStrToFloat(VGuides[i]) * Scale);
FCanvas.MoveTo(d, 0);
FCanvas.LineTo(d, Height);
end;
end;
inherited;
if (FMemo <> nil) and FDesigner.DropFields then
with FCanvas do
begin
r.TopLeft := Point(Round((FMemo.Left + FMemo.Width) * FScale) - 16,
Round((FMemo.AbsTop) * FScale) + 2);
r.BottomRight := Point(r.Left + 16, r.Top + 16);
DrawButtonFace(FCanvas, r, 1, bsNew, False, False, False);
Brush.Color := clBlack;
Brush.Style := bsSolid;
Pen.Color := clBlack;
Pen.Style := psSolid;
FCanvas.Polygon([Point(r.Left + 4, r.Top + 6), Point(r.Left + 7, r.Top + 9),
Point(r.Left + 10, r.Top + 6), Point(r.Left + 4, r.Top + 6)]);
end;
if FVirtualGuides.Count > 0 then
begin
if FMouseDown or (FMode1 = dmInsertObject) or (FMode1 = dmInsertLine) then
with FCanvas do
begin
Pen.Width := 1;
Pen.Style := psSolid;
Pen.Color := $FFCC00;
Pen.Mode := pmCopy;
for i := 0 to FVirtualGuides.Count - 1 do
begin
MoveTo(Round(FVirtualGuides[i].Left * Scale), Round(FVirtualGuides[i].Top * Scale));
LineTo(Round(FVirtualGuides[i].Right * Scale), Round(FVirtualGuides[i].Bottom * Scale));
end;
end;
FVirtualGuides.Clear;
end;
end;
procedure TDesignerWorkspace.DragOver(Source: TObject; X, Y: Integer;
State: TDragState; var Accept: Boolean);
var
ds: TfrxDataset;
s, fld: String;
w: Integer;
begin
Accept := ((FDesigner.CheckOp(drDontInsertObject) and
(Source is TTreeView) and
(TTreeView(Source).Owner = FDesigner.DataTree) and
(FDesigner.DataTree.GetFieldName <> '')) or
((Source is TfrxRuler) and FDesigner.ShowGuides)) and (FDesigner.Page is TfrxReportPage);
if not Accept then Exit;
FMode := dmDrag;
if Source is TfrxRuler then
with Canvas do
begin
Pen.Width := 1;
Pen.Style := psSolid;
Pen.Color := clBlack;
Repaint;
if GridAlign then
begin
X := Round(Trunc(X / (GridX * Scale)) * GridX * Scale);
Y := Round(Trunc(Y / (GridY * Scale)) * GridY * Scale);
end;
if TfrxRuler(Source).Align = alLeft then
begin
MoveTo(X, 0);
LineTo(X, Height);
end
else
begin
MoveTo(0, Y);
LineTo(Width, Y);
end;
MouseMove([], X, Y);
end
else
begin
if (FInsertion.ComponentClass = nil) and
(FDesigner.DataTree.InsFieldCB.Checked or
FDesigner.DataTree.InsCaptionCB.Checked or
not FDesigner.DataTree.IsDataField) then
begin
s := FDesigner.DataTree.GetFieldName;
s := Copy(s, 2, Length(s) - 2);
FDesigner.Report.GetDatasetAndField(s, ds, fld);
try
if (ds <> nil) and (fld <> '') then
w := ds.DisplayWidth[fld] else
w := 10;
except
w := 10;
end;
if w > 100 then
w := 100;
SetInsertion(TfrxMemoView, Round(w * 8 / GridX) * GridX,
FDesigner.GetDefaultObjectSize.Y, 0);
end;
MouseMove([], X - 8, Y - 8);
end;
end;
procedure TDesignerWorkspace.DragDrop(Source: TObject; X, Y: Integer);
var
eX, eY: Extended;
m: TfrxCustomMemoView;
ds: TfrxDataset;
s, fld: String;
begin
if (Source is TfrxRuler) and (FPage is TfrxReportPage) then
begin
if GridAlign then
begin
eX := Trunc(X / Scale / GridX) * GridX;
eY := Trunc(Y / Scale / GridY) * GridY;
end
else
begin
eX := X / Scale;
eY := Y / Scale;
end;
eX := Round8(eX);
eY := Round8(eY);
if TfrxRuler(Source).Align = alLeft then
VGuides.Add(FloatToStr(eX)) else
HGuides.Add(FloatToStr(eY));
end
else if FDesigner.DataTree.InsFieldCB.Checked or
FDesigner.DataTree.InsCaptionCB.Checked or
not FDesigner.DataTree.IsDataField then
begin
FSelectedObjects.Clear;
if Page is TfrxDMPPage then
m := TfrxDMPMemoView.Create(Page)
else
m := TfrxMemoView.Create(Page);
s := ToIdent(FDesigner.DataTree.GetFieldName);
if (s <> 'Memo') and (FDesigner.Report.FindObject(s) = nil) then
m.Name := s
else
begin
THackMemo(m).FBaseName := s;
m.CreateUniqueName;
end;
m.IsDesigning := True;
s := FDesigner.DataTree.GetFieldName;
s := Copy(s, 2, Length(s) - 2);
FDesigner.Report.GetDataSetAndField(s, ds, fld);
if not FDesigner.DataTree.IsDataField or FDesigner.DataTree.InsFieldCB.Checked then
begin
m.DataSet := ds;
m.DataField := fld;
if (ds = nil) and (fld = '') then
begin
if Pos('<', FDesigner.DataTree.GetFieldName) = 1 then
m.Text := '[' + s + ']' else
m.Text := '[' + FDesigner.DataTree.GetFieldName + ']';
end;
m.SetBounds(Round8(FInsertion.Left), Round8(FInsertion.Top),
Round8(FInsertion.Width), Round8(FInsertion.Height));
FDesigner.SampleFormat.ApplySample(m);
FObjects.Add(m);
FSelectedObjects.Add(m);
FInsertion.Top := FInsertion.Top - FInsertion.Height;
end
else
m.Free;
if FDesigner.DataTree.IsDataField and FDesigner.DataTree.InsCaptionCB.Checked then
begin
if Page is TfrxDMPPage then
m := TfrxDMPMemoView.Create(Page) else
m := TfrxMemoView.Create(Page);
m.CreateUniqueName;
m.IsDesigning := True;
m.Text := fld;
m.SetBounds(Round8(FInsertion.Left), Round8(FInsertion.Top),
Round8(FInsertion.Width), Round8(FInsertion.Height));
FDesigner.SampleFormat.ApplySample(m);
FObjects.Add(m);
FSelectedObjects.Add(m);
end;
SetInsertion(nil, 0, 0, 0);
end;
FModifyFlag := True;
MouseUp(mbLeft, [], X, Y);
SelectionChanged;
end;
procedure TDesignerWorkspace.MouseDown(Button: TMouseButton; Shift: TShiftState;
X, Y: Integer);
var
ds: TfrxDataset;
r: TRect;
p: TPoint;
function Contain(c: TfrxComponent): Boolean;
begin
Result := (X / FScale >= c.Left + c.Width - 16) and (X / FScale <= c.Left + c.Width) and
(Y / FScale >= c.AbsTop) and (Y / FScale <= c.AbsTop + 16);
end;
begin
if FDisableUpdate then Exit;
if FTool = dtHand then
begin
FMode1 := dmNone;
FMouseDown := True;
FLastMousePointX := X;
FLastMousePointY := Y;
Exit;
end
else if FTool in [dtZoom, dtText] then
begin
FMode1 := dmSelectionRect;
FSelectionRect := frxRect(X, Y, X, Y);
end
else if FTool = dtFormat then
begin
FMode1 := dmNone;
Exit;
end;
if (FMode = dmSelect) and (FMemo <> nil) and Contain(FMemo) and FDesigner.DropFields then
begin
FPopupForm := TfrxPopupForm.Create(Self);
FPopupForm.OnDestroy := DoPopupHide;
FListBox := TListBox.Create(FPopupForm);
with FListBox do
begin
Parent := FPopupForm;
Ctl3D := False;
Align := alClient;
Style := lbOwnerDrawFixed;
ItemHeight := 16;
OnClick := DoLBClick;
OnDrawItem := LBDrawItem;
r.Top := Round(FMemo.AbsTop * FScale) + 18;
r.Right := Round((FMemo.Left + FMemo.Width) * FScale);
r.Left := r.Right - 140;
r.Bottom := r.Top + 162;
if r.Left < 0 then
begin
Inc(r.Right, -r.Left);
r.Left := 0;
end;
p := Self.ClientToScreen(r.TopLeft);
FPopupForm.SetBounds(p.X, p.Y, r.Right - r.Left, r.Bottom - r.Top);
ds := TfrxDataBand(FMemo.Parent).Dataset;
if ds <> nil then
begin
ds.GetFieldList(Items);
ItemIndex := Items.IndexOf(FMemo.DataField);
FPopupForm.Show;
FPopupFormVisible := True;
end;
end;
FMode1 := dmNone;
FMouseDown := False;
Exit;
end;
if not ((FTool = dtZoom) and (Button = mbRight)) then
inherited;
CreateVirtualGuides;
end;
procedure TDesignerWorkspace.MouseMove(Shift: TShiftState; X, Y: Integer);
var
i, px, py: Integer;
c, cOver: TfrxComponent;
ds: TfrxDataset;
e, kx, ky: Extended;
function Contain(c: TfrxComponent): Boolean;
begin
Result := (X / FScale >= c.Left) and (X / FScale <= c.Left + c.Width - 4) and
(Y / FScale >= c.AbsTop) and (Y / FScale <= c.AbsTop + c.Height);
end;
function GridCheck: Boolean;
begin
Result := (kx >= GridX) or (kx <= -GridX) or
(ky >= GridY) or (ky <= -GridY);
if Result then
begin
kx := Trunc(kx / GridX) * GridX;
ky := Trunc(ky / GridY) * GridY;
end;
end;
begin
if FDisableUpdate then Exit;
inherited;
if FTool = dtHand then
begin
Cursor := crHand;
if FMouseDown then
begin
kx := X - FLastMousePointX;
ky := Y - FLastMousePointY;
if Parent is TScrollingWinControl then
with TScrollingWinControl(Parent) do
begin
px := HorzScrollBar.Position;
py := VertScrollBar.Position;
HorzScrollBar.Position := px - Round(kx);
VertScrollBar.Position := py - Round(ky);
if HorzScrollBar.Position = px then
FLastMousePointX := X;
if VertScrollBar.Position = py then
FLastMousePointY := Y;
end;
end;
end
else if FTool = dtZoom then
Cursor := crZoom
else if FTool = dtText then
Cursor := crIBeam
else if FTool = dtFormat then
Cursor := crFormat;
if not FMouseDown and (FMode = dmSelect) and
((FMode1 = dmNone) or (FMode1 = dmMoveGuide)) and not FPopupFormVisible then
begin
if FPage is TfrxReportPage then
begin
for i := 0 to HGuides.Count - 1 do
begin
e := frxStrToFloat(HGuides[i]);
if (Y / Scale > e - 5) and (Y / Scale < e + 5) then
begin
FMode1 := dmMoveGuide;
Cursor := crVSplit;
FGuide := i;
end;
end;
for i := 0 to VGuides.Count - 1 do
begin
e := frxStrToFloat(VGuides[i]);
if (X / Scale > e - 5) and (X / Scale < e + 5) then
begin
FMode1 := dmMoveGuide;
Cursor := crHSplit;
FGuide := i;
end;
end;
end;
if FMode1 = dmNone then
begin
cOver := nil;
for i := FObjects.Count - 1 downto 0 do
begin
c := FObjects[i];
if (c is TfrxMemoView) and Contain(c) and
(c.Parent is TfrxDataBand) and
(TfrxDataBand(c.Parent).Dataset <> nil) and
(TfrxDataBand(c.Parent).Dataset.FieldsCount > 0) then
begin
ds := TfrxDataBand(c.Parent).Dataset;
if ds <> nil then
cOver := c;
break;
end;
end;
if FMemo <> cOver then
begin
FMemo := TfrxMemoView(cOver);
Repaint;
end;
end;
end;
// moving the guideline
if FMouseDown and (FMode1 = dmMoveGuide) then
begin
if Cursor = crHSplit then
begin
e := frxStrToFloat(VGuides[FGuide]);
kx := X / Scale - FLastMousePointX;
ky := 0;
if not (GridAlign and not GridCheck) then
begin
FModifyFlag := True;
e := Round((e + kx) * 100000000) / 100000000;
FLastMousePointX := FLastMousePointX + kx;
end;
VGuides[FGuide] := FloatToStr(e);
end
else
begin
e := frxStrToFloat(HGuides[FGuide]);
kx := 0;
ky := Y / Scale - FLastMousePointY;
if not (GridAlign and not GridCheck) then
begin
FModifyFlag := True;
e := Round((e + ky) * 100000000) / 100000000;
FLastMousePointY := FLastMousePointY + ky;
end;
HGuides[FGuide] := FloatToStr(e);
end;
Repaint;
end;
end;
procedure TDesignerWorkspace.MouseUp(Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
var
i: Integer;
e: Extended;
c: TfrxComponent;
function Contain(c: TfrxComponent): Boolean;
begin
with FSelectionRect do
Result := not ((c.Left > Right / FScale) or
(c.Left + c.Width < Left / FScale) or
(c.AbsTop > Bottom / FScale) or
(c.AbsTop + c.Height < Top / FScale));
end;
procedure CopyFormat(MemoFrom, MemoTo: TfrxMemoView);
begin
MemoTo.Color := MemoFrom.Color;
MemoTo.Font := MemoFrom.Font;
MemoTo.Frame.Assign(MemoFrom.Frame);
MemoTo.BrushStyle := MemoFrom.BrushStyle;
MemoTo.HAlign := MemoFrom.HAlign;
MemoTo.VAlign := MemoFrom.VAlign;
end;
begin
if FDisableUpdate then Exit;
FSimulateMove := False;
FVirtualGuideObjects.Clear;
if FTool = dtZoom then
begin
FMode1 := dmNone;
NormalizeRect(FSelectionRect);
with FSelectionRect do
if (Right - Left > 5) and (Bottom - Top > 5) then
begin
e := Scale;
if (Right - Left) / (Parent.ClientWidth - 16) <
(Bottom - Top) / (Parent.ClientHeight - 16) then
FDesigner.Scale := (Parent.ClientHeight - 16) / (Bottom - Top) * Scale else
FDesigner.Scale := (Parent.ClientWidth - 16) / (Right - Left) * Scale;
if Parent is TScrollingWinControl then
with TScrollingWinControl(Parent) do
begin
HorzScrollBar.Position := Round((FSelectionRect.Left / e +
TfrxReportPage(FDesigner.Page).LeftMargin * fr01cm) * Scale);
VertScrollBar.Position := Round((FSelectionRect.Top / e +
TfrxReportPage(FDesigner.Page).TopMargin * fr01cm) * Scale);
end;
end
else
begin
e := Scale;
if Button = mbLeft then
begin
if FDesigner.Scale >= 1 then
FDesigner.Scale := FDesigner.Scale + 1
else
FDesigner.Scale := FDesigner.Scale + 0.25
end
else
begin
if FDesigner.Scale >= 2 then
FDesigner.Scale := FDesigner.Scale - 1
else if FDesigner.Scale > 0.4 then
FDesigner.Scale := FDesigner.Scale - 0.25
end;
if Parent is TScrollingWinControl then
with TScrollingWinControl(Parent) do
begin
HorzScrollBar.Position := Round((FSelectionRect.Left / e +
TfrxReportPage(FDesigner.Page).LeftMargin * fr01cm) * Scale -
ClientWidth / 2);
VertScrollBar.Position := Round((FSelectionRect.Top / e +
TfrxReportPage(FDesigner.Page).TopMargin * fr01cm) * Scale -
ClientHeight / 2);
end;
end;
end
else if (FTool = dtText) and FMouseDown then
begin
FMode1 := dmNone;
FMouseDown := False;
NormalizeRect(FSelectionRect);
if FInplaceObject <> nil then
TInplaceMemo(FInplaceMemo).EditDone;
FInplaceObject := nil;
with FSelectionRect do
if (Right - Left < 5) or (Bottom - Top < 5) then
begin
for i := 0 to FObjects.Count - 1 do
begin
c := FObjects[i];
if (c is TfrxCustomMemoView) and Contain(c) then
FInplaceObject := TfrxMemoView(c);
end;
end
else
begin
if GridAlign then
begin
Left := Trunc(Left / GridX) * GridX;
Right := Trunc(Right / GridX) * GridX;
Top := Trunc(Top / GridY) * GridY;
Bottom := Trunc(Bottom / GridY) * GridY;
end;
FInsertion.Left := Left / FScale;
FInsertion.Top := Top / FScale;
FInsertion.Width := (Right - Left) / FScale;
FInsertion.Height := (Bottom - Top) / FScale;
if Page is TfrxDMPPage then
FInsertion.ComponentClass := TfrxDMPMemoView else
FInsertion.ComponentClass := TfrxMemoView;
if Assigned(FOnInsert) then
FOnInsert(Self);
AdjustBands;
if TObject(FSelectedObjects[0]) is TfrxCustomMemoView then
FInplaceObject := FSelectedObjects[0];
end;
if FInplaceObject <> nil then
begin
FSelectedObjects.Clear;
FSelectedObjects.Add(FInplaceObject);
SelectionChanged;
TInplaceMemo(FInplaceMemo).Edit(FInplaceObject);
end;
Exit;
end
else if FTool = dtFormat then
begin
FSelectionRect := frxRect(X, Y, X + 1, Y + 1);
for i := FObjects.Count - 1 downto 0 do
begin
c := FObjects[i];
if (c is TfrxMemoView) and Contain(c) and not
(rfDontModify in c.Restrictions) and (c <> FSelectedObjects[0]) then
begin
CopyFormat(TfrxMemoView(FSelectedObjects[0]), TfrxMemoView(c));
FModifyFlag := True;
break;
end;
end;
end;
if FMode1 = dmMoveGuide then
begin
if Cursor = crHSplit then
begin
e := frxStrToFloat(VGuides[FGuide]);
if (e < 3) or (e > (Width / Scale) - 3) then
VGuides.Delete(FGuide);
end
else
begin
e := frxStrToFloat(HGuides[FGuide]);
if (e < 3) or (e > (Height / Scale) - 3) then
HGuides.Delete(FGuide);
end;
Repaint;
end;
inherited;
end;
procedure TDesignerWorkspace.DblClick;
begin
if FTool = dtSelect then
inherited;
end;
procedure TDesignerWorkspace.KeyDown(var Key: Word; Shift: TShiftState);
begin
if (Key = VK_ESCAPE) and FSimulateMove then
begin
Key := VK_DELETE;
MouseUp(mbLeft, [], 0, 0);
end;
inherited;
end;
procedure TDesignerWorkspace.SimulateMove;
var
r: TfrxRect;
begin
FMode1 := dmMove;
r := GetSelectionBounds;
MouseDown(mbLeft, [], Round(r.Left / Scale) + 20, Round(r.Top / Scale) + 20);
FSimulateMove := True;
end;
procedure TDesignerWorkspace.CreateVirtualGuides;
var
i: Integer;
begin
FVirtualGuideObjects.Clear;
for i := 0 to Objects.Count - 1 do
FVirtualGuideObjects.Add(Objects[i]);
end;
procedure TDesignerWorkspace.DoLBClick(Sender: TObject);
begin
if FMemo <> nil then
begin
FMemo.DataSet := TfrxDataBand(FMemo.Parent).Dataset;
FMemo.DataField := FListBox.Items[FListBox.ItemIndex];
end;
FPopupForm.Hide;
FModifyFlag := True;
DoModify;
end;
procedure TDesignerWorkspace.DoPopupHide(Sender: TObject);
begin
FPopupFormVisible := False;
end;
procedure TDesignerWorkspace.LBDrawItem(Control: TWinControl; Index: Integer;
ARect: TRect; State: TOwnerDrawState);
begin
with FListBox do
begin
Canvas.FillRect(ARect);
frxResources.MainButtonImages.Draw(Canvas, ARect.Left, ARect.Top, 54);
Canvas.TextOut(ARect.Left + 20, ARect.Top + 1, Items[Index]);
end;
end;
procedure TDesignerWorkspace.CheckGuides(var kx, ky: Extended;
var Result: Boolean);
var
i: Integer;
c: TfrxComponent;
procedure CheckH(coord: Extended);
var
i: Integer;
e: Extended;
begin
if FPage is TfrxReportPage then
for i := 0 to HGuides.Count - 1 do
begin
e := frxStrToFloat(HGuides[i]);
if Abs(coord + ky - e) < 6 then
begin
ky := e - coord;
break;
end;
end;
end;
procedure CheckV(coord: Extended);
var
i: Integer;
e: Extended;
begin
if FPage is TfrxReportPage then
for i := 0 to VGuides.Count - 1 do
begin
e := frxStrToFloat(VGuides[i]);
if Abs(coord + kx - e) < 6 then
begin
kx := e - coord;
break;
end;
end;
end;
procedure CheckHH(Left, Top: Extended; Obj: TfrxComponent);
var
i: Integer;
c: TfrxComponent;
e: Extended;
begin
for i := 0 to FVirtualGuideObjects.Count - 1 do
begin
c := FVirtualGuideObjects[i];
if c = Obj then continue;
e := c.AbsTop;
if Abs(Top + ky - e) < 0.001 then
FVirtualGuides.Add(Left, e, c.AbsLeft, e);
e := c.AbsTop + c.Height;
if Abs(Top + ky - e) < 0.001 then
FVirtualGuides.Add(Left, e, c.AbsLeft, e);
end;
end;
procedure CheckVV(Left, Top: Extended; Obj: TfrxComponent);
var
i: Integer;
c: TfrxComponent;
e: Extended;
begin
for i := 0 to FVirtualGuideObjects.Count - 1 do
begin
c := FVirtualGuideObjects[i];
if c = Obj then continue;
e := c.AbsLeft;
if Abs(Left + kx - e) < 0.001 then
FVirtualGuides.Add(e, c.AbsTop, e, Top);
e := c.AbsLeft + c.Width;
if Abs(Left + kx - e) < 0.001 then
FVirtualGuides.Add(e, c.AbsTop, e, Top);
end;
end;
begin
if not FShowGuides then Exit;
FVirtualGuides.Clear;
if FMouseDown and (FMode1 = dmSizeBand) then
CheckH(FSizedBand.Top + FSizedBand.Height);
if not FMouseDown and ((FMode1 = dmInsertObject) or (FMode1 = dmInsertLine)) then
begin
CheckV(FInsertion.Left);
CheckH(FInsertion.Top);
CheckVV(FInsertion.Left, FInsertion.Top, nil);
CheckHH(FInsertion.Left, FInsertion.Top, nil);
CheckV(FInsertion.Left + FInsertion.Width);
CheckH(FInsertion.Top + FInsertion.Height);
CheckVV(FInsertion.Left + FInsertion.Width, FInsertion.Top, nil);
CheckHH(FInsertion.Left, FInsertion.Top + FInsertion.Height, nil);
end;
if FMouseDown and ((FMode1 = dmInsertObject) or (FMode1 = dmInsertLine)) then
begin
CheckV(FInsertion.Left);
CheckH(FInsertion.Top);
CheckVV(FInsertion.Left, FInsertion.Top, nil);
CheckHH(FInsertion.Left, FInsertion.Top, nil);
end;
if FMouseDown and (FMode1 = dmMove) then
for i := 0 to SelectedCount - 1 do
begin
c := FSelectedObjects[i];
CheckV(c.Left);
CheckVV(c.AbsLeft, c.AbsTop, c);
CheckHH(c.AbsLeft, c.AbsTop, c);
CheckH(c.AbsTop);
CheckH(c.Top);
CheckV(c.Left + c.Width);
CheckVV(c.AbsLeft + c.Width, c.AbsTop, c);
CheckHH(c.AbsLeft, c.AbsTop + c.Height, c);
CheckH(c.AbsTop + c.Height);
end;
if FMouseDown and (FMode1 = dmSize) then
begin
c := FSelectedObjects[0];
if FCT in [ct1, ct6, ct4] then
begin
CheckV(c.Left);
CheckVV(c.AbsLeft, c.AbsTop, c);
end;
if FCT in [ct1, ct7, ct3] then
begin
CheckH(c.AbsTop);
CheckHH(c.AbsLeft, c.AbsTop, c);
end;
if FCT in [ct3, ct5, ct2] then
begin
CheckV(c.Left + c.Width);
CheckVV(c.AbsLeft + c.Width, c.AbsTop, c);
end;
if FCT in [ct4, ct8, ct2] then
begin
CheckH(c.AbsTop + c.Height);
CheckHH(c.AbsLeft, c.AbsTop + c.Height, c);
end;
end;
end;
procedure TDesignerWorkspace.SetShowGuides(const Value: Boolean);
begin
FShowGuides := Value;
Invalidate;
end;
function TDesignerWorkspace.GetHGuides: TStrings;
begin
Result := TfrxReportPage(FPage).HGuides;
end;
function TDesignerWorkspace.GetVGuides: TStrings;
begin
Result := TfrxReportPage(FPage).VGuides;
end;
procedure TDesignerWorkspace.SetHGuides(const Value: TStrings);
begin
TfrxReportPage(FPage).HGuides := Value;
end;
procedure TDesignerWorkspace.SetVGuides(const Value: TStrings);
begin
TfrxReportPage(FPage).VGuides := Value;
end;
procedure TDesignerWorkspace.SetTool(const Value: TfrxDesignTool);
begin
FTool := Value;
end;
end.
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