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unit sparta_BasicResizer;
{$mode delphi}{$H+}
interface
uses
Classes, SysUtils, Controls, ExtCtrls, sparta_BasicResizeFrame, Forms, StdCtrls,
LCLType, Buttons, Dialogs,
sparta_InterfacesMDI, sparta_AbstractResizer;
type
{ TBasicResizer }
TBasicResizer = class(TAbstractResizer)
private
FDesignedForm: IDesignedForm;
FResizerFrame: TBasicResizeFrame;
protected
function GetActiveResizeFrame: IResizeFrame; override;
function GetActiveDesignedForm: IDesignedForm; override;
procedure SetDesignedForm(const AValue: IDesignedForm); virtual;
public
constructor Create(AParent: TWinControl; AResizerFrameClass: TResizerFrameClass); override;
destructor Destroy; override;
property DesignedForm: IDesignedForm read FDesignedForm write SetDesignedForm;
//procedure TryBoundSizerToDesignedForm(Sender: TObject); override;
end;
implementation
{ TBasicResizer }
procedure TBasicResizer.SetDesignedForm(const AValue: IDesignedForm);
function FindFirstFormParent: TCustomForm;
begin
Result := TCustomForm(FResizerFrame.Parent);
while not (Result is TCustomForm) do
Result := TCustomForm(Result.Parent);
end;
begin
if FDesignedForm <> nil then
begin
FDesignedForm.OnChangeHackedBounds := nil;
end;
FDesignedForm := AValue;
if FDesignedForm <> nil then
begin
FDesignedForm.BeginUpdate;
FDesignedForm.Form.Parent := FResizerFrame.pFormHandler;
// for big forms (bigger than screen resolution) we need to refresh Real* values
DesignedForm.RealWidth := DesignedForm.Width;
DesignedForm.RealHeight := DesignedForm.Height;
FDesignedForm.EndUpdate;
FDesignedForm.OnChangeHackedBounds := TryBoundSizerToDesignedForm;
end;
FResizerFrame.DesignedForm := AValue;
end;
constructor TBasicResizer.Create(AParent: TWinControl;
AResizerFrameClass: TResizerFrameClass);
begin
inherited Create(AParent, AResizerFrameClass);
FResizerFrame := CreateResizeFrame;
end;
destructor TBasicResizer.Destroy;
begin
Pointer(FDesignedForm) := nil;
inherited Destroy;
end;
(*procedure TBasicResizer.TryBoundSizerToDesignedForm(Sender: TObject);
var
LWidth, LHeight: Integer;
LScrollPos: Integer;
begin
if DesignedForm = nil then
Exit;
FResizerFrame.Constraints.MaxWidth := pMain.Width;
FResizerFrame.Constraints.MaxHeight := pMain.Height;
LWidth := DesignedForm.Width + FResizerFrame.BgLeftMargin + FResizerFrame.BgRightMargin + 2*FResizerFrame.SizerRectSize;
LHeight := DesignedForm.Height + FResizerFrame.BgTopMargin + FResizerFrame.BgBottomMargin + 2*FResizerFrame.SizerRectSize;
if not FResizerFrame.NodePositioning then
begin
FResizerFrame.Width := LWidth;
FResizerFrame.Height := LHeight;
// after enlargement and after reducing constrait not work for frame (LCL bug)
if FResizerFrame.Width > FResizerFrame.Constraints.MaxWidth then
FResizerFrame.Width := FResizerFrame.Constraints.MaxWidth;
if FResizerFrame.Height > FResizerFrame.Constraints.MaxHeight then
FResizerFrame.Height := FResizerFrame.Constraints.MaxHeight;
end;
FResizerFrame.PositionNodes(FResizerFrame);
DesignScrollBottom := FResizerFrame.Width < LWidth;
sbH.Max := LWidth;
FRealMaxH := LWidth - FResizerFrame.Width;
sbH.PageSize := FResizerFrame.Width;
if FResizerFrame.HorizontalScrollPos > FRealMaxH then
begin
FResizerFrame.HorizontalScrollPos := FRealMaxH;
LScrollPos := FResizerFrame.HorizontalScrollPos;
sbScroll(sbH, scEndScroll, LScrollPos);
end;
DesignScrollRight := FResizerFrame.Height < LHeight;
sbV.Max := LHeight;
FRealMaxV := LHeight - FResizerFrame.Height;
sbV.PageSize := FResizerFrame.Height;
if FResizerFrame.VerticalScrollPos > FRealMaxV then
begin
FResizerFrame.VerticalScrollPos := FRealMaxV;
LScrollPos := FResizerFrame.VerticalScrollPos;
sbScroll(sbV, scEndScroll, LScrollPos);
end;
{!}
FResizerFrame.ClientChangeBounds(nil);
// each editor can have scrolls in different positions.
// this is our place where we can call event to set scroll positions.
LScrollPos := FResizerFrame.VerticalScrollPos;
sbScroll(sbV, scEndScroll, LScrollPos);
LScrollPos := FResizerFrame.HorizontalScrollPos;
sbScroll(sbH, scEndScroll, LScrollPos);
if Supports(FDesignedForm, IDesignedFormBackground) then
(FDesignedForm as IDesignedFormBackground).RefreshValues;
FResizerFrame.DesignerSetFocus;
end;*)
function TBasicResizer.GetActiveResizeFrame: IResizeFrame;
begin
Result := FResizerFrame;
end;
function TBasicResizer.GetActiveDesignedForm: IDesignedForm;
begin
Result := FDesignedForm;
end;
end.
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