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LCL: Refactor ChildSizing. Fix constraint handling.
This commit is contained in:
Martin
parent
db6ed214b9
commit
22881f66db
@ -84,6 +84,7 @@ type
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Control: TControl; // the Control of a leaf node
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Control: TControl; // the Control of a leaf node
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MinimumSize: array[TAutoSizeBoxOrientation] of integer;
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MinimumSize: array[TAutoSizeBoxOrientation] of integer;
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MaximumSize: array[TAutoSizeBoxOrientation] of integer; // 0 means inifinte
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MaximumSize: array[TAutoSizeBoxOrientation] of integer; // 0 means inifinte
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LimitedSize: array[TAutoSizeBoxOrientation] of boolean; // Was force set by Max or Min
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PreferredSize: array[TAutoSizeBoxOrientation] of integer;// without theme space
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PreferredSize: array[TAutoSizeBoxOrientation] of integer;// without theme space
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LeftTop: array[TAutoSizeBoxOrientation] of integer;
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LeftTop: array[TAutoSizeBoxOrientation] of integer;
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BorderLeftTop: array[TAutoSizeBoxOrientation] of integer;
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BorderLeftTop: array[TAutoSizeBoxOrientation] of integer;
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@ -1767,7 +1768,7 @@ type
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var
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var
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EnlargeStyle: TChildControlResizeStyle;
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EnlargeStyle: TChildControlResizeStyle;
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ShrinkStyle: TChildControlResizeStyle;
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ShrinkStyle: TChildControlResizeStyle;
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CurSize: LongInt;
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CurSize, CurSpacing, CurrentMinimumSizeSum: LongInt;
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function GetChildTotalSize: integer;
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function GetChildTotalSize: integer;
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// computes the total preferred size of all children of this Orientation
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// computes the total preferred size of all children of this Orientation
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@ -1777,10 +1778,14 @@ var
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s: LongInt;
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s: LongInt;
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begin
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begin
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Result:=0;
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Result:=0;
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CurSpacing := 0;
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CurrentMinimumSizeSum := 0;
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for i:=0 to ChildCount[Orientation]-1 do begin
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for i:=0 to ChildCount[Orientation]-1 do begin
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Child:=Children[Orientation][i];
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Child:=Children[Orientation][i];
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if i=0 then
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if i=0 then begin
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inc(Result,Child.BorderLeftTop[Orientation]);
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inc(Result,Child.BorderLeftTop[Orientation]);
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inc(CurSpacing,Child.BorderLeftTop[Orientation]);
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end;
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if Child.PreferredSize[Orientation]<1 then
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if Child.PreferredSize[Orientation]<1 then
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Child.PreferredSize[Orientation]:=1;
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Child.PreferredSize[Orientation]:=1;
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inc(Result,Child.PreferredSize[Orientation]);
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inc(Result,Child.PreferredSize[Orientation]);
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@ -1788,451 +1793,414 @@ var
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if i<ChildCount[Orientation]-1 then
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if i<ChildCount[Orientation]-1 then
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s:=Max(s,Children[Orientation][i+1].BorderLeftTop[Orientation]);
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s:=Max(s,Children[Orientation][i+1].BorderLeftTop[Orientation]);
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inc(Result,s);
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inc(Result,s);
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inc(CurSpacing,s);
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inc(CurrentMinimumSizeSum,Child.MinimumSize[Orientation]);
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end;
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end;
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end;
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end;
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procedure GetChildMaxResize(out Factor: TResizeFactor;
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procedure SimplifySpacing;
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out ResizeableCount, ResizableSize: integer);
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// returns the number of children/gaps, that can grow (ResizeableCount)
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// and the maximum factor, by which the children/gaps can grow (TResizeFactor)
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var
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var
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i: Integer;
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i: Integer;
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CurScale: Double;
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CurOffset: LongInt;
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Child: TAutoSizeBox;
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begin
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begin
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Factor.Scale:=0;
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for i:=0 to ChildCount[Orientation]-2 do begin
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Factor.Offset:=0;
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Children[Orientation][i].BorderRightBottom[Orientation]:=Max(
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ResizeableCount:=0;
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Children[Orientation][i].BorderRightBottom[Orientation],
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ResizableSize:=TargetSize;
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Children[Orientation][i+1].BorderLeftTop[Orientation]
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);
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Children[Orientation][i+1].BorderLeftTop[Orientation]:=0;
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end;
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end;
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procedure EnlargeChilds;
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var
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i: Integer;
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Child: TAutoSizeBox;
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RemainingTargetSize, RemainingCurSize, NonResizeableCount: Integer;
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ScaleChanged: Boolean;
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CurScale, CurOffset: Double;
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NewSizeEx, NewSizeCarry: Double;
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NewSize, OldSize, DiffSize: Integer;
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begin
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case EnlargeStyle of
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case EnlargeStyle of
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crsScaleChilds, crsHomogenousChildResize, crsSameSize:
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crsAnchorAligning:
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exit; // no resizing
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crsScaleChilds,crsHomogenousChildResize:
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for i:=0 to ChildCount[Orientation]-1 do begin
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Child:=Children[Orientation][i];
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if (Child.MaximumSize[Orientation]>0)
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and (Child.PreferredSize[Orientation]>=Child.MaximumSize[Orientation])
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then begin
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// this child can not be further enlarged
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continue;
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end;
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inc(ResizeableCount);
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case EnlargeStyle of
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crsScaleChilds, crsHomogenousChildResize:
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begin
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if Child.MaximumSize[Orientation]=0 then begin
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CurScale:=double(TargetSize);
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CurOffset:=TargetSize;
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end else begin
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CurScale:=double(Child.MaximumSize[Orientation])
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/Child.PreferredSize[Orientation];
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CurOffset:=Child.MaximumSize[Orientation]
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-Child.PreferredSize[Orientation];
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end;
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if (Factor.Offset=0) or (Factor.Offset>CurOffset) then begin
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Factor.Scale:=CurScale;
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Factor.Offset:=CurOffset;
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end;
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end;
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end;
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end;
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crsSameSize:
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begin
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Factor.Offset:=1; // prevent abort
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if ChildCount[Orientation] > 0 then
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CurOffset := TargetSize div ChildCount[Orientation];
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for i:=0 to ChildCount[Orientation]-1 do begin
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Child:=Children[Orientation][i];
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if (Child.MaximumSize[Orientation]>0)
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and (CurOffset>=Child.MaximumSize[Orientation])
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then begin
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// this childs size will be set to its MaximumSize
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ResizableSize:=ResizableSize - Child.MaximumSize[Orientation];
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continue;
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end;
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if (CurOffset<=Child.MinimumSize[Orientation])
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then begin
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// this childs size will be set to its MinimumSize
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ResizableSize:=ResizableSize - Child.MinimumSize[Orientation];
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continue;
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end;
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inc(ResizeableCount);
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end;
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end;
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crsHomogenousSpaceResize:
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if ChildCount[Orientation]>0 then begin
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Factor.Scale:=double(TargetSize);
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Factor.Offset:=TargetSize;
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ResizeableCount:=ChildCount[Orientation]+1;
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end;
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else
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raise Exception.Create('TAutoSizeBox.ResizeChilds');
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end;
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end;
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procedure EnlargeChilds(const Factor: TResizeFactor; ResizeableCount, ResizableSize: integer);
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var
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i: Integer;
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Child: TAutoSizeBox;
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DiffSize: Integer;
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NewSize: LongInt;
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OldSize: LongInt;
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begin
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for i:=0 to ChildCount[Orientation]-1 do begin
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if (TargetSize=CurSize) and (EnlargeStyle<>crsSameSize) then break;
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Child:=Children[Orientation][i];
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if (EnlargeStyle<>crsSameSize)
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and (Child.MaximumSize[Orientation]<0)
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and (Child.PreferredSize[Orientation]>=Child.MaximumSize[Orientation])
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then begin
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// this child can not be further enlarged
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continue;
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end;
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case EnlargeStyle of
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crsScaleChilds:
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begin
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begin
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// scale PreferredSize
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RemainingTargetSize := Max(0, TargetSize-CurSpacing);
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DiffSize:=TargetSize-CurSize;
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RemainingCurSize := Max(0, CurSize-CurSpacing);
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OldSize:=Child.PreferredSize[Orientation];
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NonResizeableCount := 0;
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NewSize:=round(double(OldSize)*Factor.Scale);
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NewSize:=Min(OldSize+DiffSize,Max(OldSize+1,NewSize));
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inc(CurSize,NewSize-OldSize);
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Child.PreferredSize[Orientation]:=NewSize;
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end;
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crsHomogenousChildResize:
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if EnlargeStyle = crsSameSize then begin
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begin
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(* First check for any cells forced bigger by there MinSize
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// add to PreferredSize
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This only happens for crsSameSize (because even if the total
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DiffSize:=TargetSize-CurSize;
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area grows, individual cells may shrink, if there
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OldSize:=Child.PreferredSize[Orientation];
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PreferredSize is above the average)
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NewSize:=Min(OldSize+Factor.Offset,OldSize+DiffSize);
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If they take extra space, then other cells that would have hit
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inc(CurSize,NewSize-OldSize);
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there MaxSize, may stay below it.
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Child.PreferredSize[Orientation]:=NewSize;
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In the "MaxSize Loop" the scale will only grow, so no further
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MinSize hits can happen there.
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*)
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if ChildCount[Orientation] > NonResizeableCount then
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NewSize := RemainingTargetSize div (ChildCount[Orientation] - NonResizeableCount);
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repeat
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ScaleChanged:=False;
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for i:=0 to ChildCount[Orientation]-1 do begin
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Child:=Children[Orientation][i];
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if Child.LimitedSize[Orientation] then
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continue;
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if (NewSize<=Child.MinimumSize[Orientation])
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then begin
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// this childs size will be set to its MinimumSize
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RemainingTargetSize:=RemainingTargetSize - Child.MinimumSize[Orientation];
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RemainingCurSize:=RemainingCurSize - Child.PreferredSize[Orientation];
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Child.PreferredSize[Orientation]:=Child.MinimumSize[Orientation];
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Child.LimitedSize[Orientation] := True;
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inc(NonResizeableCount);
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OldSize := NewSize;
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if ChildCount[Orientation] > NonResizeableCount then
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NewSize := RemainingTargetSize div (ChildCount[Orientation] - NonResizeableCount)
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else
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break;
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ScaleChanged := OldSize <> NewSize;
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if ScaleChanged then
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break; // for i :=
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end;
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end;
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until (not ScaleChanged) or (RemainingCurSize<=0);
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if RemainingCurSize<=0 then
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exit;
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end;
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repeat
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ScaleChanged:=False;
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case EnlargeStyle of
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crsScaleChilds: begin
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CurScale := double(RemainingTargetSize)/double(RemainingCurSize);
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CurOffset := 0;
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end;
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crsHomogenousChildResize: begin
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if ChildCount[Orientation] > NonResizeableCount then
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CurOffset := double(RemainingTargetSize - RemainingCurSize) / (ChildCount[Orientation] - NonResizeableCount);
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CurScale := 1;
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end;
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crsSameSize: begin
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if ChildCount[Orientation] > NonResizeableCount then
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CurOffset := double(RemainingTargetSize) / (ChildCount[Orientation] - NonResizeableCount);
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CurScale := 0;
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end;
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end;
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for i:=0 to ChildCount[Orientation]-1 do begin
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Child:=Children[Orientation][i];
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if Child.LimitedSize[Orientation] or (Child.MaximumSize[Orientation]=0) then
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continue;
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NewSize:=Round(double(Child.PreferredSize[Orientation])*CurScale+CurOffset);
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if (Child.MaximumSize[Orientation]>0)
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and (NewSize>=Child.MaximumSize[Orientation])
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then begin
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// this childs size will be set to its MaximumSize
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RemainingTargetSize:=RemainingTargetSize - Child.MaximumSize[Orientation];
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RemainingCurSize:=RemainingCurSize - Child.PreferredSize[Orientation];
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Child.PreferredSize[Orientation]:=Child.MaximumSize[Orientation];
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Child.LimitedSize[Orientation] := True;
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inc(NonResizeableCount);
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ScaleChanged := True;
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break; // for i :=
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end;
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end;
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until (not ScaleChanged) or (RemainingCurSize<=0);
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if RemainingCurSize<=0 then
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exit;
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DiffSize := RemainingTargetSize - RemainingCurSize;
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NewSizeCarry := 0;
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for i:=0 to ChildCount[Orientation]-1 do begin
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Child:=Children[Orientation][i];
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if Child.LimitedSize[Orientation] then
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continue;
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OldSize:=Child.PreferredSize[Orientation];
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NewSizeEx:=double(OldSize)*CurScale+CurOffset+NewSizeCarry;
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NewSize:=Round(NewSizeEx);
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if NewSize >= 1 then NewSizeCarry:=NewSizeEx - NewSize
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else NewSizeCarry:=0;
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if i = ChildCount[Orientation] - 1 then
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NewSize:=OldSize+DiffSize
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else
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if (EnlargeStyle = crsSameSize) then
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NewSize:=Max(1,NewSize)
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else
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NewSize:=Min(OldSize+DiffSize, Max(1,NewSize));
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assert((Child.MaximumSize[Orientation]=0) or (NewSize<=Child.MaximumSize[Orientation]), 'EnlargeChilds: (Child.MaximumSize[Orientation]=0) or (NewSize<=Child.MaximumSize[Orientation])');
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assert((NewSize>=Child.MinimumSize[Orientation]), 'EnlargeChilds: (NewSize>=Child.MinimumSize[Orientation])');
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dec(DiffSize,NewSize-OldSize);
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Child.PreferredSize[Orientation]:=NewSize;
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end;
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assert(DiffSize = 0, 'EnlargeChilds: DiffSize = 0');
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end;
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end;
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crsHomogenousSpaceResize:
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crsHomogenousSpaceResize:
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begin
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begin
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if i=0 then begin
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SimplifySpacing;
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// add to left/top border
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CurOffset := (TargetSize-CurSize) / (ChildCount[Orientation]+1);
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if CurOffset < 1 then
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CurOffset := 1;
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NewSizeCarry := 0;
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for i:=0 to ChildCount[Orientation]-1 do begin
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Child:=Children[Orientation][i];
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if i=0 then begin
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// add to left/top border
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OldSize:=Child.BorderLeftTop[Orientation];
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NewSizeEx:=double(OldSize)+CurOffset+NewSizeCarry;
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NewSize:=Round(NewSizeEx);
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NewSizeCarry:=NewSizeEx - NewSize;
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DiffSize:=TargetSize-CurSize;
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NewSize:=Min(NewSize,OldSize+DiffSize);
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inc(CurSize,NewSize-OldSize);
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Child.BorderLeftTop[Orientation]:=NewSize;
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end;
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// add to right/bottom border
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OldSize:=Child.BorderRightBottom[Orientation];
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NewSizeEx:=double(OldSize)+CurOffset+NewSizeCarry;
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NewSize:=Round(NewSizeEx);
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NewSizeCarry:=NewSizeEx - NewSize;
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DiffSize:=TargetSize-CurSize;
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DiffSize:=TargetSize-CurSize;
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OldSize:=Child.BorderLeftTop[Orientation];
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NewSize:=Min(NewSize,OldSize+DiffSize);
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NewSize:=Min(OldSize+Factor.Offset,OldSize+DiffSize);
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inc(CurSize,NewSize-OldSize);
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inc(CurSize,NewSize-OldSize);
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Child.BorderLeftTop[Orientation]:=NewSize;
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Child.BorderRightBottom[Orientation]:=NewSize;
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end;
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end;
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// add to right/bottom border
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DiffSize:=TargetSize-CurSize;
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OldSize:=Child.BorderRightBottom[Orientation];
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NewSize:=Min(OldSize+Factor.Offset,OldSize+DiffSize);
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inc(CurSize,NewSize-OldSize);
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Child.BorderRightBottom[Orientation]:=NewSize;
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if i<ChildCount[Orientation]-1 then
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Child.BorderLeftTop[Orientation]:=NewSize;
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end;
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end;
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crsSameSize:
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begin
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OldSize:=Child.PreferredSize[Orientation];
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if ResizeableCount <= 1 then
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NewSize:=Max(1,OldSize+TargetSize-CurSize)
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else
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NewSize:=Max(1,round(double(ResizableSize)/ResizeableCount));
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if (Child.MaximumSize[Orientation] > 0) and (NewSize >= Child.MaximumSize[Orientation]) then begin
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NewSize := Child.MaximumSize[Orientation];
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end
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else
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if (NewSize <= Child.MinimumSize[Orientation]) then begin
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NewSize := Child.MinimumSize[Orientation];
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end
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else begin
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dec(ResizableSize,NewSize);
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dec(ResizeableCount);
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end;
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inc(CurSize,NewSize-OldSize);
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Child.PreferredSize[Orientation]:=NewSize;
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end;
|
|
||||||
|
|
||||||
end;
|
|
||||||
end;
|
end;
|
||||||
end;
|
end;
|
||||||
|
|
||||||
procedure GetChildMinResize(out Factor: TResizeFactor;
|
procedure ShrinkChilds;
|
||||||
out ResizeableCount, ResizableSize: integer);
|
|
||||||
// returns the number of children/gaps, that can shrink (ResizeableCount)
|
|
||||||
// and the maximum factor, by which the children/gaps can shrink (TResizeFactor)
|
|
||||||
var
|
var
|
||||||
i: Integer;
|
i: Integer;
|
||||||
CurScale: Double;
|
|
||||||
CurOffset: LongInt;
|
|
||||||
Child: TAutoSizeBox;
|
Child: TAutoSizeBox;
|
||||||
|
RemainingTargetSize, RemainingCurSize, NonResizeableCount: Integer;
|
||||||
|
ScaleChanged, LeftMostSpaceLimited: Boolean;
|
||||||
|
CurScale, CurOffset: Double;
|
||||||
|
NewSizeEx, NewSizeCarry: Double;
|
||||||
|
NewSize, OldSize, DiffSize: Integer;
|
||||||
begin
|
begin
|
||||||
Factor.Scale:=0;
|
|
||||||
Factor.Offset:=0;
|
|
||||||
ResizeableCount:=0;
|
|
||||||
ResizableSize:=TargetSize;
|
|
||||||
case ShrinkStyle of
|
case ShrinkStyle of
|
||||||
|
crsScaleChilds, crsHomogenousChildResize, crsSameSize:
|
||||||
crsAnchorAligning:
|
|
||||||
exit; // no resizing
|
|
||||||
|
|
||||||
crsScaleChilds,crsHomogenousChildResize:
|
|
||||||
for i:=0 to ChildCount[Orientation]-1 do begin
|
|
||||||
Child:=Children[Orientation][i];
|
|
||||||
if (Child.PreferredSize[Orientation]<=Child.MinimumSize[Orientation])
|
|
||||||
or (Child.PreferredSize[Orientation]<=1)
|
|
||||||
then begin
|
|
||||||
// this child can not be further shrinked
|
|
||||||
continue;
|
|
||||||
end;
|
|
||||||
inc(ResizeableCount);
|
|
||||||
|
|
||||||
case ShrinkStyle of
|
|
||||||
|
|
||||||
crsScaleChilds:
|
|
||||||
begin
|
|
||||||
CurScale:=double(Child.MinimumSize[Orientation])
|
|
||||||
/Child.PreferredSize[Orientation];
|
|
||||||
CurOffset:=Child.PreferredSize[Orientation]
|
|
||||||
-Child.MinimumSize[Orientation];
|
|
||||||
if (Factor.Offset=0) or (Factor.Scale<CurScale) then begin
|
|
||||||
Factor.Scale:=CurScale;
|
|
||||||
Factor.Offset:=CurOffset;
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
|
|
||||||
crsHomogenousChildResize:
|
|
||||||
begin
|
|
||||||
CurScale:=double(Child.MinimumSize[Orientation])
|
|
||||||
/Child.PreferredSize[Orientation];
|
|
||||||
CurOffset:=Child.PreferredSize[Orientation]
|
|
||||||
-Child.MinimumSize[Orientation];
|
|
||||||
if (Factor.Offset=0) or (Factor.Offset>CurOffset) then begin
|
|
||||||
Factor.Scale:=CurScale;
|
|
||||||
Factor.Offset:=CurOffset;
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
|
|
||||||
crsSameSize:
|
|
||||||
begin
|
|
||||||
Factor.Offset:=1; // prevent abort
|
|
||||||
if ChildCount[Orientation] > 0 then
|
|
||||||
CurOffset := TargetSize div ChildCount[Orientation];
|
|
||||||
for i:=0 to ChildCount[Orientation]-1 do begin
|
|
||||||
Child:=Children[Orientation][i];
|
|
||||||
if (Child.MaximumSize[Orientation]>0)
|
|
||||||
and (CurOffset>=Child.MaximumSize[Orientation])
|
|
||||||
then begin
|
|
||||||
// this childs size will be set to its MaximumSize
|
|
||||||
ResizableSize:=ResizableSize - Child.MaximumSize[Orientation];
|
|
||||||
continue;
|
|
||||||
end;
|
|
||||||
if (CurOffset<=Child.MinimumSize[Orientation])
|
|
||||||
then begin
|
|
||||||
// this childs size will be set to its MinimumSize
|
|
||||||
ResizableSize:=ResizableSize - Child.MinimumSize[Orientation];
|
|
||||||
continue;
|
|
||||||
end;
|
|
||||||
inc(ResizeableCount);
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
|
|
||||||
crsHomogenousSpaceResize:
|
|
||||||
for i:=0 to ChildCount[Orientation]-1 do begin
|
|
||||||
Child:=Children[Orientation][i];
|
|
||||||
if i=0 then begin
|
|
||||||
CurScale:=double(TargetSize);
|
|
||||||
CurOffset:=Child.BorderLeftTop[Orientation];
|
|
||||||
if CurOffset>0 then begin
|
|
||||||
inc(ResizeableCount);
|
|
||||||
if (Factor.Offset=0) or (Factor.Offset>CurOffset) then begin
|
|
||||||
Factor.Scale:=CurScale;
|
|
||||||
Factor.Offset:=CurOffset;
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
CurScale:=double(TargetSize);
|
|
||||||
CurOffset:=Child.BorderRightBottom[Orientation];
|
|
||||||
if CurOffset>0 then begin
|
|
||||||
inc(ResizeableCount);
|
|
||||||
if (Factor.Offset=0) or (Factor.Offset>CurOffset) then begin
|
|
||||||
Factor.Scale:=CurScale;
|
|
||||||
Factor.Offset:=CurOffset;
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
|
|
||||||
else
|
|
||||||
raise Exception.Create('TAutoSizeBox.ResizeChilds');
|
|
||||||
|
|
||||||
end;
|
|
||||||
end;
|
|
||||||
|
|
||||||
procedure ShrinkChilds(const Factor: TResizeFactor; ResizeableCount, ResizableSize: integer);
|
|
||||||
var
|
|
||||||
i: Integer;
|
|
||||||
Child: TAutoSizeBox;
|
|
||||||
DiffSize: Integer;
|
|
||||||
NewSize: LongInt;
|
|
||||||
OldSize: LongInt;
|
|
||||||
begin
|
|
||||||
for i:=0 to ChildCount[Orientation]-1 do begin
|
|
||||||
Child:=Children[Orientation][i];
|
|
||||||
if (ShrinkStyle<>crsSameSize)
|
|
||||||
and ( (Child.PreferredSize[Orientation]<=1)
|
|
||||||
or (Child.PreferredSize[Orientation]<=Child.MinimumSize[Orientation]) )
|
|
||||||
then begin
|
|
||||||
// this child can not be further shrinked
|
|
||||||
continue;
|
|
||||||
end;
|
|
||||||
|
|
||||||
case ShrinkStyle of
|
|
||||||
|
|
||||||
crsScaleChilds:
|
|
||||||
begin
|
begin
|
||||||
// scale PreferredSize
|
RemainingTargetSize := Max(0, TargetSize-CurSpacing);
|
||||||
DiffSize:=CurSize-TargetSize;
|
RemainingCurSize := Max(0, CurSize-CurSpacing);
|
||||||
OldSize:=Child.PreferredSize[Orientation];
|
NonResizeableCount := 0;
|
||||||
NewSize:=Min(round(OldSize*Factor.Scale),OldSize-1);
|
|
||||||
NewSize:=Max(Max(1,NewSize),OldSize-DiffSize);
|
|
||||||
dec(CurSize,OldSize-NewSize);
|
|
||||||
Child.PreferredSize[Orientation]:=NewSize;
|
|
||||||
end;
|
|
||||||
|
|
||||||
crsHomogenousChildResize:
|
if ShrinkStyle = crsSameSize then begin
|
||||||
begin
|
(* First check for any cells forced smaller by there MaxSize
|
||||||
// add to PreferredSize
|
This only happens for crsSameSize (because even if the total
|
||||||
DiffSize:=CurSize-TargetSize;
|
area shrinks, individual cells may grow, if there
|
||||||
OldSize:=Child.PreferredSize[Orientation];
|
PreferredSize is below the average)
|
||||||
NewSize:=OldSize-Factor.Offset;
|
If they take less space, then other cells that would have hit
|
||||||
NewSize:=Max(Max(NewSize,1),OldSize-DiffSize);
|
there MinSize, may stay above it.
|
||||||
dec(CurSize,OldSize-NewSize);
|
In the "MinSize Loop" the scale will only shrink, so no further
|
||||||
Child.PreferredSize[Orientation]:=NewSize;
|
MaxSize hits can happen there.
|
||||||
|
*)
|
||||||
|
if ChildCount[Orientation] > NonResizeableCount then
|
||||||
|
NewSize := RemainingTargetSize div (ChildCount[Orientation] - NonResizeableCount);
|
||||||
|
repeat
|
||||||
|
ScaleChanged:=False;
|
||||||
|
for i:=0 to ChildCount[Orientation]-1 do begin
|
||||||
|
Child:=Children[Orientation][i];
|
||||||
|
if Child.LimitedSize[Orientation] then
|
||||||
|
continue;
|
||||||
|
|
||||||
|
if (Child.MaximumSize[Orientation] > 0) and (NewSize>=Child.MaximumSize[Orientation])
|
||||||
|
then begin
|
||||||
|
// this childs size will be set to its MaximumSize
|
||||||
|
RemainingTargetSize:=RemainingTargetSize - Child.MaximumSize[Orientation];
|
||||||
|
RemainingCurSize:=RemainingCurSize - Child.PreferredSize[Orientation];
|
||||||
|
CurrentMinimumSizeSum := CurrentMinimumSizeSum - Child.MinimumSize[Orientation];
|
||||||
|
Child.PreferredSize[Orientation]:=Child.MaximumSize[Orientation];
|
||||||
|
Child.LimitedSize[Orientation] := True;
|
||||||
|
inc(NonResizeableCount);
|
||||||
|
OldSize := NewSize;
|
||||||
|
if ChildCount[Orientation] > NonResizeableCount then
|
||||||
|
NewSize := RemainingTargetSize div (ChildCount[Orientation] - NonResizeableCount)
|
||||||
|
else
|
||||||
|
break;
|
||||||
|
ScaleChanged := OldSize <> NewSize;
|
||||||
|
if ScaleChanged then
|
||||||
|
break; // for i :=
|
||||||
|
end;
|
||||||
|
end;
|
||||||
|
until (not ScaleChanged) or (RemainingCurSize<=0);
|
||||||
|
if RemainingCurSize<=0 then
|
||||||
|
exit;
|
||||||
|
end;
|
||||||
|
|
||||||
|
repeat
|
||||||
|
ScaleChanged:=False;
|
||||||
|
case ShrinkStyle of
|
||||||
|
crsScaleChilds: begin
|
||||||
|
CurScale := double(RemainingTargetSize)/double(RemainingCurSize);
|
||||||
|
CurOffset := 0;
|
||||||
|
end;
|
||||||
|
crsHomogenousChildResize: begin
|
||||||
|
// negative CurOffset
|
||||||
|
if ChildCount[Orientation] > NonResizeableCount then
|
||||||
|
CurOffset := double(RemainingTargetSize - RemainingCurSize) / (ChildCount[Orientation] - NonResizeableCount);
|
||||||
|
CurScale := 1;
|
||||||
|
end;
|
||||||
|
crsSameSize: begin
|
||||||
|
if ChildCount[Orientation] > NonResizeableCount then
|
||||||
|
CurOffset := double(RemainingTargetSize) / (ChildCount[Orientation] - NonResizeableCount);
|
||||||
|
CurScale := 0;
|
||||||
|
end;
|
||||||
|
end;
|
||||||
|
for i:=0 to ChildCount[Orientation]-1 do begin
|
||||||
|
Child:=Children[Orientation][i];
|
||||||
|
if Child.LimitedSize[Orientation] then
|
||||||
|
continue;
|
||||||
|
|
||||||
|
NewSize:=Round(double(Child.PreferredSize[Orientation])*CurScale+CurOffset);
|
||||||
|
if (NewSize<=Child.MinimumSize[Orientation])
|
||||||
|
then begin
|
||||||
|
// this childs size will be set to its MinimumSize
|
||||||
|
NewSize := Max(Min(1, Max(0, RemainingTargetSize-CurrentMinimumSizeSum)),Child.MinimumSize[Orientation]);
|
||||||
|
RemainingTargetSize:=RemainingTargetSize - NewSize;
|
||||||
|
RemainingCurSize:=RemainingCurSize - Child.PreferredSize[Orientation];
|
||||||
|
CurrentMinimumSizeSum := CurrentMinimumSizeSum - Child.MinimumSize[Orientation];
|
||||||
|
Child.PreferredSize[Orientation]:=NewSize;
|
||||||
|
Child.LimitedSize[Orientation] := True;
|
||||||
|
inc(NonResizeableCount);
|
||||||
|
ScaleChanged := True;
|
||||||
|
break; // for i :=
|
||||||
|
end;
|
||||||
|
end;
|
||||||
|
until (not ScaleChanged) or (RemainingCurSize<=0);
|
||||||
|
if RemainingCurSize<=0 then
|
||||||
|
exit;
|
||||||
|
|
||||||
|
DiffSize := RemainingCurSize - RemainingTargetSize;
|
||||||
|
NewSizeCarry := 0;
|
||||||
|
for i:=0 to ChildCount[Orientation]-1 do begin
|
||||||
|
Child:=Children[Orientation][i];
|
||||||
|
if Child.LimitedSize[Orientation] then
|
||||||
|
continue;
|
||||||
|
|
||||||
|
OldSize:=Child.PreferredSize[Orientation];
|
||||||
|
NewSizeEx:=double(OldSize)*CurScale+CurOffset+NewSizeCarry;
|
||||||
|
NewSize:=Round(NewSizeEx);
|
||||||
|
if NewSize >= 1 then NewSizeCarry:=NewSizeEx - NewSize
|
||||||
|
else NewSizeCarry:=0;
|
||||||
|
if i = ChildCount[Orientation] - 1 then
|
||||||
|
NewSize:=OldSize-DiffSize
|
||||||
|
else
|
||||||
|
if (ShrinkStyle = crsSameSize) then
|
||||||
|
NewSize:=Max(1,NewSize)
|
||||||
|
else
|
||||||
|
NewSize:=Min(OldSize+DiffSize, Max(1,NewSize));
|
||||||
|
assert((Child.MaximumSize[Orientation]=0) or (NewSize<=Child.MaximumSize[Orientation]), 'EnlargeChilds: (Child.MaximumSize[Orientation]=0) or (NewSize<=Child.MaximumSize[Orientation])');
|
||||||
|
assert((NewSize>=Child.MinimumSize[Orientation]), 'EnlargeChilds: (NewSize>=Child.MinimumSize[Orientation])');
|
||||||
|
|
||||||
|
dec(DiffSize,OldSize-NewSize);
|
||||||
|
Child.PreferredSize[Orientation]:=NewSize;
|
||||||
|
end;
|
||||||
|
assert(DiffSize=0, 'ShrinkChilds: DiffSize=0');
|
||||||
end;
|
end;
|
||||||
|
|
||||||
crsHomogenousSpaceResize:
|
crsHomogenousSpaceResize:
|
||||||
begin
|
begin
|
||||||
if i=0 then begin
|
SimplifySpacing;
|
||||||
// add to left/top border
|
RemainingTargetSize := TargetSize;
|
||||||
DiffSize:=CurSize-TargetSize;
|
RemainingCurSize := CurSize;
|
||||||
OldSize:=Child.BorderLeftTop[Orientation];
|
NonResizeableCount := 0;
|
||||||
NewSize:=Max(Max(0,OldSize-Factor.Offset),OldSize-DiffSize);
|
LeftMostSpaceLimited := False;
|
||||||
dec(CurSize,OldSize-NewSize);
|
|
||||||
Child.BorderLeftTop[Orientation]:=NewSize;
|
repeat
|
||||||
end;
|
ScaleChanged:=False;
|
||||||
// add to right/bottom border
|
CurOffset := (RemainingCurSize-RemainingTargetSize) / (ChildCount[Orientation]-NonResizeableCount+1);
|
||||||
|
DiffSize := Round(CurOffset);
|
||||||
|
if (ChildCount[Orientation] > 0) and not LeftMostSpaceLimited then begin
|
||||||
|
// add to left/top border
|
||||||
|
Child:=Children[Orientation][0];
|
||||||
|
OldSize:=Child.BorderLeftTop[Orientation];
|
||||||
|
NewSize:=OldSize-DiffSize;
|
||||||
|
if NewSize < 1 then begin
|
||||||
|
RemainingCurSize:=RemainingCurSize - Child.BorderLeftTop[Orientation];
|
||||||
|
Child.BorderLeftTop[Orientation]:=0;
|
||||||
|
LeftMostSpaceLimited := True;
|
||||||
|
inc(NonResizeableCount);
|
||||||
|
ScaleChanged := True;
|
||||||
|
continue;
|
||||||
|
end;
|
||||||
|
end;
|
||||||
|
for i:=0 to ChildCount[Orientation]-1 do begin
|
||||||
|
Child:=Children[Orientation][i];
|
||||||
|
if Child.LimitedSize[Orientation] then
|
||||||
|
Continue;
|
||||||
|
// add to right/bottom border
|
||||||
|
OldSize:=Child.BorderRightBottom[Orientation];
|
||||||
|
NewSize:=OldSize-DiffSize;
|
||||||
|
if NewSize < 1 then begin
|
||||||
|
RemainingCurSize:=RemainingCurSize - Child.BorderRightBottom[Orientation];
|
||||||
|
Child.BorderRightBottom[Orientation]:=0;
|
||||||
|
Child.LimitedSize[Orientation] := True;
|
||||||
|
inc(NonResizeableCount);
|
||||||
|
ScaleChanged := True;
|
||||||
|
break; // for i :=
|
||||||
|
end;
|
||||||
|
end;
|
||||||
|
until (not ScaleChanged) or (RemainingCurSize<=0) or (ChildCount[Orientation]<=NonResizeableCount-1);
|
||||||
|
if (RemainingCurSize<=0) or (ChildCount[Orientation]<=NonResizeableCount-1) then
|
||||||
|
exit;
|
||||||
|
|
||||||
DiffSize:=CurSize-TargetSize;
|
DiffSize:=CurSize-TargetSize;
|
||||||
OldSize:=Child.BorderRightBottom[Orientation];
|
NewSizeCarry := 0;
|
||||||
NewSize:=Max(Max(0,OldSize-Factor.Offset),OldSize-DiffSize);
|
if (ChildCount[Orientation] > 0) and not LeftMostSpaceLimited then begin
|
||||||
dec(CurSize,OldSize-NewSize);
|
// add to left/top border
|
||||||
Child.BorderRightBottom[Orientation]:=NewSize;
|
Child:=Children[Orientation][0];
|
||||||
if i<ChildCount[Orientation]-1 then
|
OldSize:=Child.BorderLeftTop[Orientation];
|
||||||
|
NewSizeEx:=double(OldSize)-CurOffset+NewSizeCarry;
|
||||||
|
NewSize:=Round(NewSizeEx);
|
||||||
|
NewSizeCarry:=NewSizeEx - NewSize;
|
||||||
|
NewSize:=Max(NewSize,OldSize-DiffSize);
|
||||||
|
dec(DiffSize,OldSize-NewSize);
|
||||||
Child.BorderLeftTop[Orientation]:=NewSize;
|
Child.BorderLeftTop[Orientation]:=NewSize;
|
||||||
|
end;
|
||||||
|
for i:=0 to ChildCount[Orientation]-1 do begin
|
||||||
|
Child:=Children[Orientation][i];
|
||||||
|
if Child.LimitedSize[Orientation] then
|
||||||
|
Continue;
|
||||||
|
// add to right/bottom border
|
||||||
|
OldSize:=Child.BorderRightBottom[Orientation];
|
||||||
|
NewSizeEx:=double(OldSize)-CurOffset+NewSizeCarry;
|
||||||
|
NewSize:=Round(NewSizeEx);
|
||||||
|
NewSizeCarry:=NewSizeEx - NewSize;
|
||||||
|
NewSize:=Max(NewSize,OldSize-DiffSize);
|
||||||
|
dec(DiffSize,OldSize-NewSize);
|
||||||
|
Child.BorderRightBottom[Orientation]:=NewSize;
|
||||||
|
end;
|
||||||
end;
|
end;
|
||||||
|
|
||||||
crsSameSize:
|
|
||||||
begin
|
|
||||||
OldSize:=Child.PreferredSize[Orientation];
|
|
||||||
if ResizeableCount <= 1 then
|
|
||||||
NewSize:=Max(1,OldSize+TargetSize-CurSize)
|
|
||||||
else
|
|
||||||
NewSize:=Max(1,round(double(ResizableSize)/ResizeableCount));
|
|
||||||
if (Child.MaximumSize[Orientation] > 0) and (NewSize >= Child.MaximumSize[Orientation]) then begin
|
|
||||||
NewSize := Child.MaximumSize[Orientation];
|
|
||||||
end
|
|
||||||
else
|
|
||||||
if (NewSize <= Child.MinimumSize[Orientation]) then begin
|
|
||||||
NewSize := Child.MinimumSize[Orientation];
|
|
||||||
end
|
|
||||||
else begin
|
|
||||||
dec(ResizableSize,NewSize);
|
|
||||||
dec(ResizeableCount);
|
|
||||||
end;
|
|
||||||
dec(CurSize,OldSize-NewSize);
|
|
||||||
Child.PreferredSize[Orientation]:=NewSize;
|
|
||||||
end;
|
|
||||||
|
|
||||||
end;
|
|
||||||
end;
|
end;
|
||||||
end;
|
end;
|
||||||
|
|
||||||
var
|
|
||||||
MaxResizeFactorPerItem, MinResizeFactorPerItem, CurScale: TResizeFactor;
|
|
||||||
ResizeableCount, ResizableSize: integer;
|
|
||||||
i: Integer;
|
|
||||||
begin
|
begin
|
||||||
CurSize:=GetChildTotalSize;
|
CurSize:=GetChildTotalSize;
|
||||||
//DebugLn('TAutoSizeBox.ResizeChilds CurSize=',dbgs(CurSize),' TargetSize=',dbgs(TargetSize));
|
//DebugLn('TAutoSizeBox.ResizeChilds CurSize=',dbgs(CurSize),' TargetSize=',dbgs(TargetSize));
|
||||||
EnlargeStyle:=crsAnchorAligning;
|
EnlargeStyle:=crsAnchorAligning;
|
||||||
ShrinkStyle:=crsAnchorAligning;
|
ShrinkStyle:=crsAnchorAligning;
|
||||||
i:=0;
|
if TargetSize>=CurSize then begin
|
||||||
if TargetSize>CurSize then begin
|
|
||||||
// enlarge
|
// enlarge
|
||||||
if Orientation=asboHorizontal then
|
if Orientation=asboHorizontal then
|
||||||
EnlargeStyle:=ChildSizing.EnlargeHorizontal
|
EnlargeStyle:=ChildSizing.EnlargeHorizontal
|
||||||
else
|
else
|
||||||
EnlargeStyle:=ChildSizing.EnlargeVertical;
|
EnlargeStyle:=ChildSizing.EnlargeVertical;
|
||||||
while TargetSize>CurSize do begin
|
// grow children
|
||||||
// shrink children
|
if (TargetSize>CurSize) or (EnlargeStyle=crsSameSize) then
|
||||||
GetChildMaxResize(MaxResizeFactorPerItem,ResizeableCount, ResizableSize);
|
EnlargeChilds;
|
||||||
if (ResizeableCount=0) or (MaxResizeFactorPerItem.Offset=0) then break;
|
|
||||||
|
|
||||||
CurScale.Scale:=(double(TargetSize)/CurSize);
|
|
||||||
if (MaxResizeFactorPerItem.Scale>0)
|
|
||||||
and (MaxResizeFactorPerItem.Scale<CurScale.Scale) then
|
|
||||||
CurScale.Scale:=MaxResizeFactorPerItem.Scale;
|
|
||||||
|
|
||||||
CurScale.Offset:=((TargetSize-CurSize-1) div ResizeableCount)+1;
|
|
||||||
// note: the above formula makes sure, that Offset>0
|
|
||||||
if (MaxResizeFactorPerItem.Offset>0)
|
|
||||||
and (MaxResizeFactorPerItem.Offset<CurScale.Offset) then
|
|
||||||
CurScale.Offset:=MaxResizeFactorPerItem.Offset;
|
|
||||||
|
|
||||||
EnlargeChilds(CurScale, ResizeableCount, ResizableSize);
|
|
||||||
inc(i);
|
|
||||||
if i>1000 then RaiseGDBException('TAutoSizeBox.ResizeChilds consistency error');
|
|
||||||
end;
|
|
||||||
end else if TargetSize<CurSize then begin
|
end else if TargetSize<CurSize then begin
|
||||||
// shrink
|
// shrink
|
||||||
if Orientation=asboHorizontal then
|
if Orientation=asboHorizontal then
|
||||||
ShrinkStyle:=ChildSizing.ShrinkHorizontal
|
ShrinkStyle:=ChildSizing.ShrinkHorizontal
|
||||||
else
|
else
|
||||||
ShrinkStyle:=ChildSizing.ShrinkVertical;
|
ShrinkStyle:=ChildSizing.ShrinkVertical;
|
||||||
while TargetSize<CurSize do begin
|
ShrinkChilds;
|
||||||
GetChildMinResize(MinResizeFactorPerItem,ResizeableCount, ResizableSize);
|
|
||||||
if (ResizeableCount=0) or (MinResizeFactorPerItem.Offset=0) then break;
|
|
||||||
|
|
||||||
CurScale.Scale:=(double(TargetSize)/CurSize);
|
|
||||||
if (MinResizeFactorPerItem.Scale>0)
|
|
||||||
and (MinResizeFactorPerItem.Scale>CurScale.Scale) then
|
|
||||||
CurScale.Scale:=MinResizeFactorPerItem.Scale;
|
|
||||||
|
|
||||||
CurScale.Offset:=((CurSize-TargetSize-1) div ResizeableCount)+1;
|
|
||||||
// note: the above formula makes sure, that Offset>0
|
|
||||||
if (MinResizeFactorPerItem.Offset>0)
|
|
||||||
and (MinResizeFactorPerItem.Offset>CurScale.Offset) then
|
|
||||||
CurScale.Offset:=MinResizeFactorPerItem.Offset;
|
|
||||||
|
|
||||||
ShrinkChilds(CurScale, ResizeableCount, ResizableSize);
|
|
||||||
inc(i);
|
|
||||||
if i>1000 then RaiseGDBException('TAutoSizeBox.ResizeChilds consistency error');
|
|
||||||
end;
|
|
||||||
end;
|
end;
|
||||||
end;
|
end;
|
||||||
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user