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cocoa: scrollwincontrol, keeping the actual scrollbox size, if a smaller scolling range is requested. #32998

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git-svn-id: trunk@57048 -
This commit is contained in:
dmitry 2018-01-11 05:28:36 +00:00
parent db4dc7c254
commit 3e9a589e80
2 changed files with 27 additions and 4 deletions
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30
lcl/interfaces/cocoa/cocoawinapi.inc
View File

@ -1764,6 +1764,9 @@ var
obj : NSObject;
sc : TCocoaScrollView;
bar : TCocoaScrollBar;
f : NSSize;
sz : NSSize;
flg : NSUInteger;
begin
obj := HandleToNSObject(Handle);
Result := 0;
@ -1773,10 +1776,29 @@ begin
begin
sc:=TCocoaScrollView(obj);
if sc.isCustomRange and (ScrollInfo.fMask and SIF_RANGE>0) then begin
if SBStyle=SB_Horz then
sc.documentView.setFrameSize( NSMakeSize( ScrollInfo.nMax, sc.documentView.frame.size.height ))
else if SBStyle=SB_Vert then
sc.documentView.setFrameSize( NSMakeSize( sc.documentView.frame.size.width, ScrollInfo.nMax ));
f:=sc.frame.size;
sz:=sc.documentView.frame.size;
flg:=sc.documentView.autoresizingMask;
if SBStyle=SB_Horz then begin
if ScrollInfo.nMax>f.width then begin
sz.width := ScrollInfo.nMax;
flg:=flg and not NSViewWidthSizable;
end else begin
sz.width := f.width;
flg:=flg or NSViewWidthSizable;
end;
end else if SBStyle=SB_Vert then begin
if ScrollInfo.nMax>f.height then begin
sz.height := ScrollInfo.nMax;
flg:=flg and not NSViewHeightSizable;
end else begin
sz.height := f.height;
flg:=flg or NSViewHeightSizable;
end;
end;
sc.documentView.setAutoresizingMask(flg);
sc.documentView.setFrameSize( sz );
end;
NSScrollViewSetScrollInfo(NSScrollView(obj), SBStyle, ScrollInfo);

1
lcl/interfaces/cocoa/cocoawsforms.pp
View File

@ -393,6 +393,7 @@ begin
lcl := TLCLCustomControlCallback.Create(docview, AWinControl);
docview.callback := lcl;
docview.setAutoresizingMask(NSViewWidthSizable or NSViewHeightSizable);
scrollcon.callback := lcl;
lcl.Frame:=scrollcon;
scrollcon.setDocumentView(docview);