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https://gitlab.com/freepascal.org/lazarus/lazarus.git
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designer: disable snapping when Alt key is pressed (issue #0001974)
git-svn-id: trunk@26910 -
This commit is contained in:
paul
parent
4075c56ad3
commit
41160c3a52
@ -414,8 +414,8 @@ type
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procedure UpdateBounds;
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procedure RestoreBounds;
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procedure MoveSelection(dx, dy: integer);
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function MoveSelectionWithSnapping(TotalDX, TotalDY: integer): boolean;
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function MoveSelection(dx, dy: integer; TotalDeltas: Boolean): Boolean;
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function MoveSelectionWithSnapping(TotalDx, TotalDy: integer): Boolean;
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procedure SizeSelection(dx, dy: integer);
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procedure SetBounds(NewLeft,NewTop,NewWidth,NewHeight: integer);
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procedure AlignComponents(HorizAlignment,VertAlignment:TComponentAlignment);
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@ -1678,19 +1678,20 @@ begin
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Result:=ABottom;
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end;
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function TControlSelection.SnapGrabberMousePos(const CurMousePos: TPoint
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): TPoint;
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function TControlSelection.SnapGrabberMousePos(const CurMousePos: TPoint): TPoint;
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begin
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Result:=CurMousePos;
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if (not EnvironmentOptions.SnapToGrid) or (ActiveGrabber=nil) then exit;
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Result := CurMousePos;
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if (not EnvironmentOptions.SnapToGrid) or (ActiveGrabber = nil) then exit;
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if gpLeft in ActiveGrabber.Positions then
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Result.X:=FindNearestSnapLeft(Result.X)
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else if gpRight in ActiveGrabber.Positions then
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Result.X:=FindNearestSnapRight(Result.X);
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Result.X := FindNearestSnapLeft(Result.X)
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else
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if gpRight in ActiveGrabber.Positions then
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Result.X := FindNearestSnapRight(Result.X);
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if gpTop in ActiveGrabber.Positions then
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Result.Y:=FindNearestSnapTop(Result.Y)
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else if gpBottom in ActiveGrabber.Positions then
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Result.Y:=FindNearestSnapBottom(Result.Y);
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Result.Y := FindNearestSnapTop(Result.Y)
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else
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if gpBottom in ActiveGrabber.Positions then
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Result.Y := FindNearestSnapBottom(Result.Y);
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end;
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function TControlSelection.GetLeftGuideLine(var ALine: TRect): boolean;
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@ -2169,44 +2170,60 @@ begin
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Result:=(Count=1) and (Items[0].Persistent=APersistent);
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end;
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procedure TControlSelection.MoveSelection(dx, dy: integer);
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begin
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if (Count=0) or (IsResizing) then exit;
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if (dx=0) and (dy=0) then exit;
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//DebugLn('[TControlSelection.MoveSelection] A %d,%d',[dx,dy]);
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BeginResizing;
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//DebugLn('[TControlSelection.MoveSelection] B %d',[FResizeLockCount]);
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inc(FLeft,dx);
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inc(FTop,dy);
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EndResizing(true);
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end;
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function TControlSelection.MoveSelectionWithSnapping(TotalDX, TotalDY: integer
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): boolean;
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function TControlSelection.MoveSelection(dx, dy: integer; TotalDeltas: Boolean): Boolean;
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var
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NewLeft, NewTop: integer;
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begin
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Result:=false;
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if (Count=0) or (IsResizing) then exit;
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NewLeft:=FindNearestSnapLeft(FOldLeft+TotalDX,FWidth);
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NewTop:=FindNearestSnapTop(FOldTop+TotalDY,FHeight);
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Result := False;
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if (Count = 0) or IsResizing then Exit;
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//DebugLn('[TControlSelection.MoveSelection] A %d,%d',[dx,dy]);
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//DebugLn('[TControlSelection.MoveSelection] B %d',[FResizeLockCount]);
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if TotalDeltas then
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begin
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NewLeft := FOldLeft + dx;
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NewTop := FOldTop + dy;
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end
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else
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begin
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NewLeft := FLeft + dx;
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NewTop := FTop + dy
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end;
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if (NewLeft <> FLeft) or (NewTop <> FTop) then
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begin
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Result := True;
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BeginResizing;
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FLeft := NewLeft;
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FTop := NewTop;
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EndResizing(True);
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end;
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end;
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function TControlSelection.MoveSelectionWithSnapping(TotalDx, TotalDy: integer): boolean;
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var
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NewLeft, NewTop: integer;
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begin
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Result := False;
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if (Count = 0) or IsResizing then Exit;
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NewLeft := FindNearestSnapLeft(FOldLeft + TotalDx, FWidth);
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NewTop := FindNearestSnapTop(FOldTop + TotalDy, FHeight);
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{$IFDEF VerboseDesigner}
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DebugLn('[TControlSelection.MoveSelectionWithSnapping] A ',
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'TotalD='+dbgs(TotalDX)+','+dbgs(TotalDY),
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'TotalD='+dbgs(TotalDx)+','+dbgs(TotalDy),
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' CurBounds='+dbgs(FLeft)+','+dbgs(FTop)+','+dbgs(FWidth)+','+dbgs(FHeight),
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' OldBounds='+dbgs(FOldLeft)+','+dbgs(FOldTop)+','+dbgs(FOldWidth)+','+dbgs(FOldHeight)
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+' NewPos='+dbgs(NewLeft)+','+dbgs(NewTop));
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{$ENDIF}
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if (NewLeft<>FLeft) or (NewTop<>FTop) then begin
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Result:=true;
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if (NewLeft <> FLeft) or (NewTop <> FTop) then
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begin
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Result := True;
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BeginResizing;
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FLeft:=NewLeft;
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FTop:=NewTop;
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FLeft := NewLeft;
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FTop := NewTop;
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{$IFDEF VerboseDesigner}
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DebugLn('[TControlSelection.MoveSelectionWithSnapping] B ',
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' Bounds='+dbgs(FLeft)+','+dbgs(FTop)+','+dbgs(FWidth)+','+dbgs(FHeight));
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{$ENDIF}
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EndResizing(true);
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EndResizing(True);
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end;
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end;
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@ -670,7 +670,7 @@ begin
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{$ENDIF}
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if (ControlSelection.SelectionForm<>Form)
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or ControlSelection.LookupRootSelected then exit;
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ControlSelection.MoveSelection(DiffX, DiffY);
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ControlSelection.MoveSelection(DiffX, DiffY, False);
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Modified;
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end;
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@ -1600,61 +1600,64 @@ procedure TDesigner.GetMouseMsgShift(TheMessage: TLMMouse;
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begin
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Shift := [];
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if (TheMessage.Keys and MK_Shift) = MK_Shift then
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Include(Shift,ssShift);
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Include(Shift, ssShift);
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if (TheMessage.Keys and MK_Control) = MK_Control then
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Include(Shift,ssCtrl);
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Include(Shift, ssCtrl);
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if GetKeyState(VK_MENU) < 0 then Include(Shift, ssAlt);
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if (GetKeyState(VK_LWIN) < 0) or (GetKeyState(VK_RWIN) < 0) then Include(Shift, ssMeta);
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case TheMessage.Msg of
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LM_LBUTTONUP,LM_LBUTTONDBLCLK,LM_LBUTTONTRIPLECLK,LM_LBUTTONQUADCLK:
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begin
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Include(Shift,ssLeft);
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Button:=mbLeft;
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Include(Shift, ssLeft);
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Button := mbLeft;
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end;
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LM_MBUTTONUP,LM_MBUTTONDBLCLK,LM_MBUTTONTRIPLECLK,LM_MBUTTONQUADCLK:
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begin
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Include(Shift,ssMiddle);
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Button:=mbMiddle;
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Include(Shift, ssMiddle);
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Button := mbMiddle;
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end;
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LM_RBUTTONUP,LM_RBUTTONDBLCLK,LM_RBUTTONTRIPLECLK,LM_RBUTTONQUADCLK:
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begin
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Include(Shift,ssRight);
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Button:=mbRight;
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Include(Shift, ssRight);
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Button := mbRight;
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end;
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else
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if (TheMessage.Keys and MK_MButton) <> 0 then
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begin
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Include(Shift,ssMiddle);
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Button:=mbMiddle;
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Include(Shift, ssMiddle);
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Button := mbMiddle;
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end;
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if (TheMessage.Keys and MK_RButton) <> 0 then
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begin
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Include(Shift,ssRight);
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Button:=mbRight;
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Include(Shift, ssRight);
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Button := mbRight;
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end;
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if (TheMessage.Keys and MK_LButton) <> 0 then
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begin
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Include(Shift,ssLeft);
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Button:=mbLeft;
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Include(Shift, ssLeft);
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Button := mbLeft;
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end;
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if (TheMessage.Keys and MK_XBUTTON1) <> 0 then
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begin
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Include(Shift,ssExtra1);
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Button:=mbExtra1;
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Include(Shift, ssExtra1);
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Button := mbExtra1;
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end;
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if (TheMessage.Keys and MK_XBUTTON2) <> 0 then
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begin
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Include(Shift,ssExtra2);
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Button:=mbExtra2;
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Include(Shift, ssExtra2);
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Button := mbExtra2;
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end;
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end;
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case TheMessage.Msg of
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LM_LBUTTONDBLCLK,LM_MBUTTONDBLCLK,LM_RBUTTONDBLCLK,LM_XBUTTONDBLCLK:
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Include(Shift,ssDouble);
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Include(Shift, ssDouble);
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LM_LBUTTONTRIPLECLK,LM_MBUTTONTRIPLECLK,LM_RBUTTONTRIPLECLK,LM_XBUTTONTRIPLECLK:
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Include(Shift,ssTriple);
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Include(Shift, ssTriple);
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LM_LBUTTONQUADCLK,LM_MBUTTONQUADCLK,LM_RBUTTONQUADCLK,LM_XBUTTONQUADCLK:
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Include(Shift,ssQuad);
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Include(Shift, ssQuad);
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end;
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end;
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@ -2251,9 +2254,9 @@ begin
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begin
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if Grabber = nil then
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ACursor := crDefault
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else begin
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else
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ACursor := Grabber.Cursor;
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end;
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if ACursor <> LastFormCursor then
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begin
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LastFormCursor := ACursor;
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@ -2276,8 +2279,17 @@ begin
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ControlSelection.SaveBounds;
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Include(FFlags, dfHasSized);
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end;
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OldSnappedMousePos := ControlSelection.SnapGrabberMousePos(OldMouseMovePos);
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CurSnappedMousePos:= ControlSelection.SnapGrabberMousePos(LastMouseMovePos);
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// skip snapping when Alt is pressed
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if not (ssAlt in Shift) then
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begin
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OldSnappedMousePos := ControlSelection.SnapGrabberMousePos(OldMouseMovePos);
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CurSnappedMousePos := ControlSelection.SnapGrabberMousePos(LastMouseMovePos);
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end
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else
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begin
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OldSnappedMousePos := OldMouseMovePos;
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CurSnappedMousePos := LastMouseMovePos;
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end;
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ControlSelection.SizeSelection(
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CurSnappedMousePos.X - OldSnappedMousePos.X,
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CurSnappedMousePos.Y - OldSnappedMousePos.Y);
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@ -2289,7 +2301,7 @@ begin
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SelectedCompClass := GetSelectedComponentClass;
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if (not ControlSelection.RubberBandActive) and
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(SelectedCompClass=nil) and
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(Shift=[ssLeft]) and
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((Shift=[ssLeft]) or (Shift=[ssAlt, ssLeft])) and
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(ControlSelection.Count>=1) and
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(not ControlSelection.LookupRootSelected) then
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begin // move selection
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@ -2299,9 +2311,8 @@ begin
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Include(FFlags, dfHasSized);
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end;
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//debugln('TDesigner.MouseMoveOnControl Move MouseDownComponent=',dbgsName(MouseDownComponent),' OldMouseMovePos=',dbgs(OldMouseMovePos),' MouseMovePos',dbgs(LastMouseMovePos),' MouseDownPos=',dbgs(MouseDownPos));
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if ControlSelection.MoveSelectionWithSnapping(
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LastMouseMovePos.X - MouseDownPos.X,
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LastMouseMovePos.Y - MouseDownPos.Y) then
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if ((ssAlt in Shift) and ControlSelection.MoveSelection(LastMouseMovePos.X - MouseDownPos.X, LastMouseMovePos.Y - MouseDownPos.Y, True)) or
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ControlSelection.MoveSelectionWithSnapping(LastMouseMovePos.X - MouseDownPos.X, LastMouseMovePos.Y - MouseDownPos.Y) then
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DoModified;
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end
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else
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@ -2880,7 +2891,7 @@ end;
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procedure TDesigner.OnSnapToGridOptionMenuClick(Sender: TObject);
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begin
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EnvironmentOptions.SnapToGrid:=not EnvironmentOptions.SnapToGrid;
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EnvironmentOptions.SnapToGrid := not EnvironmentOptions.SnapToGrid;
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end;
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procedure TDesigner.OnShowOptionsMenuItemClick(Sender: TObject);
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@ -2890,7 +2901,7 @@ end;
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procedure TDesigner.OnSnapToGuideLinesOptionMenuClick(Sender: TObject);
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begin
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EnvironmentOptions.SnapToGuideLines:=not EnvironmentOptions.SnapToGuideLines;
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EnvironmentOptions.SnapToGuideLines := not EnvironmentOptions.SnapToGuideLines;
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end;
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procedure TDesigner.OnViewLFMMenuClick(Sender: TObject);
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@ -2978,7 +2989,7 @@ end;
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function TDesigner.GetSnapToGrid: boolean;
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begin
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Result:=EnvironmentOptions.SnapToGrid;
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Result := EnvironmentOptions.SnapToGrid;
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end;
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procedure TDesigner.SetShowGrid(const AValue: boolean);
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