mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-05-22 18:22:57 +02:00
added owner check for designer created components
git-svn-id: trunk@5131 -
This commit is contained in:
mattias
parent
0788600787
commit
573f1ed8bd
@ -1135,6 +1135,7 @@ var
|
||||
var
|
||||
NewParent: TComponent;
|
||||
NewParentControl: TWinControl;
|
||||
NewComponent: TComponent;
|
||||
begin
|
||||
if MouseDownComponent=nil then exit;
|
||||
|
||||
@ -1143,7 +1144,6 @@ var
|
||||
ControlSelection.Clear;
|
||||
|
||||
// find a parent for the new component
|
||||
writeln('AddComponent A ',FLookupRoot is TCustomForm);
|
||||
if FLookupRoot is TCustomForm then begin
|
||||
if MouseDownComponent is TWinControl then
|
||||
NewParentControl:=TWinControl(MouseDownComponent)
|
||||
@ -1192,19 +1192,21 @@ writeln('AddComponent A ',FLookupRoot is TCustomForm);
|
||||
NewCI := TComponentInterface(TheFormEditor.CreateComponent(
|
||||
ParentCI,SelectedCompClass.ComponentClass
|
||||
,NewLeft,NewTop,NewWidth,NewHeight));
|
||||
if NewCI=nil then exit;
|
||||
NewComponent:=NewCI.Component;
|
||||
|
||||
// set initial properties
|
||||
if NewCI.Component is TControl then
|
||||
TControl(NewCI.Component).Visible:=true;
|
||||
if NewComponent is TControl then
|
||||
TControl(NewComponent).Visible:=true;
|
||||
if Assigned(FOnSetDesigning) then
|
||||
FOnSetDesigning(Self,NewCI.Component,True);
|
||||
FOnSetDesigning(Self,NewComponent,True);
|
||||
|
||||
// tell IDE about the new component (e.g. add it to the source)
|
||||
NotifyComponentAdded(NewCI.Component);
|
||||
NotifyComponentAdded(NewComponent);
|
||||
|
||||
// creation completed
|
||||
// -> select new component
|
||||
SelectOnlyThisComponent(TComponent(NewCI.Component));
|
||||
SelectOnlyThisComponent(NewComponent);
|
||||
if not (ssShift in Shift) then
|
||||
if Assigned(FOnUnselectComponentClass) then
|
||||
// this resets the component palette to the selection tool
|
||||
@ -1212,7 +1214,7 @@ writeln('AddComponent A ',FLookupRoot is TCustomForm);
|
||||
|
||||
{$IFDEF VerboseDesigner}
|
||||
writeln('NEW COMPONENT ADDED: Form.ComponentCount=',Form.ComponentCount,
|
||||
' NewCI.Control.Owner.Name=',NewCI.Component.Owner.Name);
|
||||
' NewComponent.Owner.Name=',NewComponent.Owner.Name);
|
||||
{$ENDIF}
|
||||
end;
|
||||
|
||||
|
||||
@ -908,115 +908,186 @@ Var
|
||||
Temp: TComponentInterface;
|
||||
NewJITIndex: Integer;
|
||||
CompLeft, CompTop, CompWidth, CompHeight: integer;
|
||||
NewComponent: TComponent;
|
||||
OwnerComponent: TComponent;
|
||||
ParentComponent: TComponent;
|
||||
JITList: TJITComponentList;
|
||||
AControl: TControl;
|
||||
NewComponentName: String;
|
||||
Begin
|
||||
writeln('[TCustomFormEditor.CreateComponent] Class='''+TypeClass.ClassName+'''');
|
||||
{$IFDEF IDE_MEM_CHECK}CheckHeapWrtMemCnt('TCustomFormEditor.CreateComponent A');{$ENDIF}
|
||||
Temp := TComponentInterface.Create;
|
||||
Result:=nil;
|
||||
Temp:=nil;
|
||||
try
|
||||
writeln('[TCustomFormEditor.CreateComponent] Class='''+TypeClass.ClassName+'''');
|
||||
{$IFDEF IDE_MEM_CHECK}CheckHeapWrtMemCnt('TCustomFormEditor.CreateComponent A');{$ENDIF}
|
||||
|
||||
OwnerComponent:=nil;
|
||||
if Assigned(ParentCI) then
|
||||
begin
|
||||
// add as child control
|
||||
ParentComponent:=TComponentInterface(ParentCI).Component;
|
||||
OwnerComponent:=ParentComponent;
|
||||
if OwnerComponent.Owner<>nil then
|
||||
OwnerComponent:=OwnerComponent.Owner;
|
||||
Temp.FComponent := TypeClass.Create(OwnerComponent);
|
||||
// set parent
|
||||
if Temp.IsTControl then begin
|
||||
if (ParentComponent is TWinControl)
|
||||
and (csAcceptsControls in TWinControl(ParentComponent).ControlStyle) then
|
||||
begin
|
||||
TWinControl(Temp.Component).Parent :=
|
||||
TWinControl(ParentComponent);
|
||||
writeln('Parent is '''+TWinControl(Temp.Component).Parent.Name+'''');
|
||||
end
|
||||
else begin
|
||||
TControl(Temp.Component).Parent :=
|
||||
TControl(ParentComponent).Parent;
|
||||
writeln('Parent is '''+TControl(Temp.Component).Parent.Name+'''');
|
||||
OwnerComponent:=nil;
|
||||
if Assigned(ParentCI) then
|
||||
begin
|
||||
// add as child component
|
||||
ParentComponent:=TComponentInterface(ParentCI).Component;
|
||||
OwnerComponent:=ParentComponent;
|
||||
if OwnerComponent.Owner<>nil then
|
||||
OwnerComponent:=OwnerComponent.Owner;
|
||||
try
|
||||
NewComponent := TypeClass.Create(OwnerComponent);
|
||||
except
|
||||
on e: Exception do begin
|
||||
MessageDlg('Error creating component',
|
||||
'Error creating component: '+TypeClass.ClassName,
|
||||
mtError,[mbCancel],0);
|
||||
exit;
|
||||
end;
|
||||
end;
|
||||
// check if Owner was properly set
|
||||
if NewComponent.Owner<>OwnerComponent then begin
|
||||
MessageDlg('Invalid component owner',
|
||||
'The component of type '+NewComponent.ClassName
|
||||
+' failed to set its owner to '
|
||||
+OwnerComponent.Name+':'+OwnerComponent.ClassName,
|
||||
mtError,[mbCancel],0);
|
||||
exit;
|
||||
end;
|
||||
|
||||
// create component interface
|
||||
Temp := TComponentInterface.Create;
|
||||
Temp.FComponent:=NewComponent;
|
||||
|
||||
// set parent
|
||||
if Temp.IsTControl then begin
|
||||
if (ParentComponent is TWinControl)
|
||||
and (csAcceptsControls in TWinControl(ParentComponent).ControlStyle) then
|
||||
begin
|
||||
TWinControl(Temp.Component).Parent :=
|
||||
TWinControl(ParentComponent);
|
||||
writeln('Parent is '''+TWinControl(Temp.Component).Parent.Name+'''');
|
||||
end
|
||||
else begin
|
||||
TControl(Temp.Component).Parent :=
|
||||
TControl(ParentComponent).Parent;
|
||||
writeln('Parent is '''+TControl(Temp.Component).Parent.Name+'''');
|
||||
end;
|
||||
end;
|
||||
end else begin
|
||||
// create a toplevel control -> a form or a datamodule
|
||||
ParentComponent:=nil;
|
||||
JITList:=GetJITListOfType(TypeClass);
|
||||
if JITList=nil then
|
||||
RaiseException('TCustomFormEditor.CreateComponent '+TypeClass.ClassName);
|
||||
NewJITIndex := JITList.AddNewJITComponent;
|
||||
if NewJITIndex >= 0 then begin
|
||||
// create component interface
|
||||
Temp := TComponentInterface.Create;
|
||||
Temp.FComponent := JITList[NewJITIndex]
|
||||
end else begin
|
||||
exit;
|
||||
end;
|
||||
end;
|
||||
end else begin
|
||||
// create a toplevel control -> a form or a datamodule
|
||||
ParentComponent:=nil;
|
||||
JITList:=GetJITListOfType(TypeClass);
|
||||
if JITList=nil then
|
||||
RaiseException('TCustomFormEditor.CreateComponent '+TypeClass.ClassName);
|
||||
NewJITIndex := JITList.AddNewJITComponent;
|
||||
if NewJITIndex >= 0 then
|
||||
Temp.FComponent := JITList[NewJITIndex]
|
||||
else begin
|
||||
Result:=nil;
|
||||
exit;
|
||||
{$IFDEF IDE_MEM_CHECK}CheckHeapWrtMemCnt('TCustomFormEditor.CreateComponent D ');{$ENDIF}
|
||||
try
|
||||
NewComponentName := CreateUniqueComponentName(Temp.Component);
|
||||
Temp.Component.Name := NewComponentName;
|
||||
except
|
||||
on e: Exception do begin
|
||||
MessageDlg('Error naming component',
|
||||
'Error setting the name of a component '
|
||||
+Temp.Component.Name+':'+Temp.Component.ClassName
|
||||
+' to '+NewComponentName,
|
||||
mtError,[mbCancel],0);
|
||||
exit;
|
||||
end;
|
||||
end;
|
||||
|
||||
try
|
||||
// set bounds
|
||||
CompLeft:=X;
|
||||
CompTop:=Y;
|
||||
CompWidth:=W;
|
||||
CompHeight:=H;
|
||||
if (Temp.Component is TControl) then
|
||||
Begin
|
||||
AControl:=TControl(Temp.Component);
|
||||
if CompWidth<=0 then CompWidth:=Max(5,AControl.Width);
|
||||
if CompHeight<=0 then CompHeight:=Max(5,AControl.Height);
|
||||
if CompLeft<0 then begin
|
||||
if AControl.Parent<>nil then
|
||||
CompLeft:=(AControl.Parent.Width - CompWidth) div 2
|
||||
else if AControl is TCustomForm then
|
||||
CompLeft:=Max(1,Min(250,Screen.Width-CompWidth-50))
|
||||
else
|
||||
CompLeft:=0;
|
||||
end;
|
||||
if CompTop<0 then begin
|
||||
if AControl.Parent<>nil then
|
||||
CompTop:=(AControl.Parent.Height - CompHeight) div 2
|
||||
else if AControl is TCustomForm then
|
||||
CompTop:=Max(1,Min(250,Screen.Height-CompHeight-50))
|
||||
else
|
||||
CompTop:=0;
|
||||
end;
|
||||
AControl.SetBounds(CompLeft,CompTop,CompWidth,CompHeight);
|
||||
end
|
||||
else if (Temp.Component is TDataModule) then begin
|
||||
// data module
|
||||
with TDataModule(Temp.Component) do begin
|
||||
if CompWidth<=0 then CompWidth:=Max(50,DesignSize.X);
|
||||
if CompHeight<=0 then CompHeight:=Max(50,DesignSize.Y);
|
||||
if CompLeft<0 then
|
||||
CompLeft:=Max(1,Min(250,Screen.Width-CompWidth-50));
|
||||
if CompTop<0 then
|
||||
CompTop:=Max(1,Min(250,Screen.Height-CompHeight-50));
|
||||
DesignOffset.X:=CompLeft;
|
||||
DesignOffset.Y:=CompTop;
|
||||
DesignSize.X:=CompWidth;
|
||||
DesignSize.Y:=CompHeight;
|
||||
end;
|
||||
end
|
||||
else begin
|
||||
// non TControl
|
||||
with LongRec(Temp.Component.DesignInfo) do begin
|
||||
Lo:=word(Min(32000,CompLeft));
|
||||
Hi:=word(Min(32000,CompTop));
|
||||
end;
|
||||
end;
|
||||
except
|
||||
on e: Exception do begin
|
||||
MessageDlg('Error moving component',
|
||||
'Error moving component '
|
||||
+Temp.Component.Name+':'+Temp.Component.ClassName,
|
||||
mtError,[mbCancel],0);
|
||||
exit;
|
||||
end;
|
||||
end;
|
||||
|
||||
{$IFDEF IDE_MEM_CHECK}CheckHeapWrtMemCnt('TCustomFormEditor.CreateComponent F ');{$ENDIF}
|
||||
// add to component list
|
||||
FComponentInterfaces.Add(Temp);
|
||||
|
||||
if Temp.Component.Owner<>nil then
|
||||
CreateChildComponentInterfaces(Temp.Component.Owner);
|
||||
|
||||
Result := Temp;
|
||||
finally
|
||||
// clean up carefully
|
||||
if Result=nil then begin
|
||||
if Temp=nil then begin
|
||||
if NewComponent<>nil then begin
|
||||
try
|
||||
NewComponent.Free;
|
||||
NewComponent:=nil;
|
||||
except
|
||||
MessageDlg('Error destroying component',
|
||||
'Error destroying component of type '+TypeClass.ClassName,
|
||||
mtError,[mbCancel],0);
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
if (Result<>Temp) then begin
|
||||
Temp.Free;
|
||||
Temp:=nil;
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
{$IFDEF IDE_MEM_CHECK}CheckHeapWrtMemCnt('TCustomFormEditor.CreateComponent D ');{$ENDIF}
|
||||
Temp.Component.Name := CreateUniqueComponentName(Temp.Component);
|
||||
|
||||
// set bounds
|
||||
CompLeft:=X;
|
||||
CompTop:=Y;
|
||||
CompWidth:=W;
|
||||
CompHeight:=H;
|
||||
if (Temp.Component is TControl) then
|
||||
Begin
|
||||
AControl:=TControl(Temp.Component);
|
||||
if CompWidth<=0 then CompWidth:=Max(5,AControl.Width);
|
||||
if CompHeight<=0 then CompHeight:=Max(5,AControl.Height);
|
||||
if CompLeft<0 then begin
|
||||
if AControl.Parent<>nil then
|
||||
CompLeft:=(AControl.Parent.Width - CompWidth) div 2
|
||||
else if AControl is TCustomForm then
|
||||
CompLeft:=Max(1,Min(250,Screen.Width-CompWidth-50))
|
||||
else
|
||||
CompLeft:=0;
|
||||
end;
|
||||
if CompTop<0 then begin
|
||||
if AControl.Parent<>nil then
|
||||
CompTop:=(AControl.Parent.Height - CompHeight) div 2
|
||||
else if AControl is TCustomForm then
|
||||
CompTop:=Max(1,Min(250,Screen.Height-CompHeight-50))
|
||||
else
|
||||
CompTop:=0;
|
||||
end;
|
||||
AControl.SetBounds(CompLeft,CompTop,CompWidth,CompHeight);
|
||||
end
|
||||
else if (Temp.Component is TDataModule) then begin
|
||||
// data module
|
||||
with TDataModule(Temp.Component) do begin
|
||||
if CompWidth<=0 then CompWidth:=Max(50,DesignSize.X);
|
||||
if CompHeight<=0 then CompHeight:=Max(50,DesignSize.Y);
|
||||
if CompLeft<0 then
|
||||
CompLeft:=Max(1,Min(250,Screen.Width-CompWidth-50));
|
||||
if CompTop<0 then
|
||||
CompTop:=Max(1,Min(250,Screen.Height-CompHeight-50));
|
||||
DesignOffset.X:=CompLeft;
|
||||
DesignOffset.Y:=CompTop;
|
||||
DesignSize.X:=CompWidth;
|
||||
DesignSize.Y:=CompHeight;
|
||||
end;
|
||||
end
|
||||
else begin
|
||||
// non TControl
|
||||
with LongRec(Temp.Component.DesignInfo) do begin
|
||||
Lo:=word(Min(32000,CompLeft));
|
||||
Hi:=word(Min(32000,CompTop));
|
||||
end;
|
||||
end;
|
||||
|
||||
{$IFDEF IDE_MEM_CHECK}CheckHeapWrtMemCnt('TCustomFormEditor.CreateComponent F ');{$ENDIF}
|
||||
// add to component list
|
||||
FComponentInterfaces.Add(Temp);
|
||||
|
||||
if Temp.Component.Owner<>nil then
|
||||
CreateChildComponentInterfaces(Temp.Component.Owner);
|
||||
|
||||
Result := Temp;
|
||||
end;
|
||||
|
||||
Function TCustomFormEditor.CreateComponentFromStream(
|
||||
|
||||
Loading…
Reference in New Issue
Block a user