mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
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Cocoa: integrate ScrollView / ScrollBar / Legacy Implement
This commit is contained in:
rich2014
parent
b1529da111
commit
b081e349c1
@ -113,7 +113,9 @@ type
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TCocoaScrollBar = objcclass(NSScroller)
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private
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manager: TCocoaScrollBarStyleManager;
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effect: TCocoaScrollBarEffect;
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trackingArea: NSTrackingArea;
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public
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callback: ICommonCallback;
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preventBlock : Boolean;
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@ -125,6 +127,16 @@ type
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largeInc: Integer;
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smallInc: Integer;
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procedure dealloc; override;
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procedure drawKnob; override;
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procedure drawKnobSlotInRect_highlight(slotRect: NSRect; flag: ObjCBOOL); override;
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procedure setDoubleValue(newValue: double); override;
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procedure setKnobProportion(newValue: CGFloat); override;
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procedure updateTrackingAreas; override;
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procedure mouseEntered(theEvent: NSEvent); override;
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procedure mouseExited(theEvent: NSEvent); override;
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procedure actionScrolling(sender: NSObject); message 'actionScrolling:';
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function IsHorizontal: Boolean; message 'IsHorizontal';
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function acceptsFirstResponder: LCLObjCBoolean; override;
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@ -151,12 +163,16 @@ type
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TCocoaManualScrollView = objcclass(NSView)
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private
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manager: TCocoaScrollStyleManager;
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fdocumentView: NSView;
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fhscroll : NSScroller;
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fvscroll : NSScroller;
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fhscroll : TCocoaScrollBar;
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fvscroll : TCocoaScrollBar;
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public
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callback: ICommonCallback;
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function initWithFrame(frameRect: NSRect): id; override;
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procedure dealloc; override;
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procedure setFrame(newValue: NSRect); override;
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function lclGetCallback: ICommonCallback; override;
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procedure lclClearCallback; override;
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function lclContentView: NSView; override;
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@ -177,8 +193,8 @@ type
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function horizontalScroller: NSScroller; message 'horizontalScroller';
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function verticalScroller: NSScroller; message 'verticalScroller';
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function allocHorizontalScroller(avisible: Boolean): NSScroller; message 'allocHorizontalScroller:';
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function allocVerticalScroller(avisible: Boolean): NSScroller; message 'allocVerticalScroller:';
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function allocHorizontalScroller(avisible: Boolean): TCocoaScrollBar; message 'allocHorizontalScroller:';
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function allocVerticalScroller(avisible: Boolean): TCocoaScrollBar; message 'allocVerticalScroller:';
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// mouse
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function acceptsFirstMouse(event: NSEvent): LCLObjCBoolean; override;
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end;
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@ -228,8 +244,6 @@ type
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procedure fade( inc:Double; max:Double );
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message 'fadeInc:max:';
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procedure onDestroy; override;
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public
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procedure dealloc; override;
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end;
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{ TCocoaScrollStyleManagerLegacy }
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@ -409,65 +423,29 @@ begin
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sc.setAction(objcselector('actionScrolling:'));
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end;
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procedure updateDocSize(parent: NSView; doc: NSView; hScroller, vScroller: NSScroller);
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function allocScroller(parent: TCocoaManualScrollView; dst: NSRect; aVisible: Boolean)
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:TCocoaScrollBar;
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var
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docFrame : NSRect;
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hScrollerFrame : NSRect;
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vScrollerFrame : NSRect;
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hScrollerHeight : CGFLoat;
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vScrollerWidth : CGFLoat;
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scrollBar: TCocoaScrollBar;
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begin
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if not Assigned(parent) or not Assigned(doc) then
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Exit;
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docFrame := parent.frame;
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docFrame.origin := NSZeroPoint;
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hScrollerFrame := docFrame;
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vScrollerFrame := docFrame;
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if Assigned(hScroller) and (not hScroller.isHidden) then
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begin
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hScrollerHeight := NSScroller.scrollerWidthForControlSize_scrollerStyle(
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hScroller.controlSize, hScroller.preferredScrollerStyle);
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hScrollerFrame.size.height := hScrollerHeight;
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docFrame.size.height := docFrame.size.height - hScrollerHeight;
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if docFrame.size.height < 0 then
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docFrame.size.height := 0;
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docFrame.origin.y := hScrollerHeight;
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end;
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if Assigned(vScroller) and (not vScroller.isHidden) then
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begin
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vScrollerWidth := NSScroller.scrollerWidthForControlSize_scrollerStyle(
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vScroller.controlSize, vScroller.preferredScrollerStyle);
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vScrollerFrame.size.width := vScrollerWidth;
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docFrame.size.width := docFrame.size.width - vScrollerWidth;
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if docFrame.size.width < 0 then
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docFrame.size.width:= 0;
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end;
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hScrollerFrame.size.width := docFrame.size.width;
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vScrollerFrame.size.height := docFrame.size.height;
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vScrollerFrame.origin.x := docFrame.size.width;
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vScrollerFrame.origin.y := docFrame.origin.y;
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if Assigned(hScroller) then
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hScroller.setFrame(hScrollerFrame);
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if Assigned(vScroller) then
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vScroller.setFrame(vScrollerFrame);
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if not NSEqualRects(doc.frame, docFrame) then
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begin
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doc.setFrame(docFrame);
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{$ifdef BOOLFIX}
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doc.setNeedsDisplay__(Ord(true));
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{$else}
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doc.setNeedsDisplay_(true);
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{$endif}
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end;
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scrollBar:= TCocoaScrollBar(TCocoaScrollBar.alloc).initWithFrame(dst);
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scrollBar.manager:= parent.manager;
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scrollBar.effect:= parent.manager.createScrollBarEffect(scrollBar);
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parent.addSubview(scrollBar);
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{$ifdef BOOLFIX}
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scrollBar.setEnabled_(Ord(true));
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scrollBar.setHidden_(Ord(not AVisible));
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{$else}
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scrollBar.setEnabled(true);
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scrollBar.setHidden(not AVisible);
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{$endif}
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scrollBar.preventBlock := true;
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//Suppress scrollers notifications.
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scrollBar.callback := parent.callback;
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scrollBar.suppressLCLMouse := true;
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scrollBar.setTarget(scrollBar);
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scrollBar.setAction(objcselector('actionScrolling:'));
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Result:= scrollBar;
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end;
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{ TCocoaManualScrollHost }
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@ -509,16 +487,35 @@ begin
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scFrame.origin:= NSZeroPoint;
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scFrame.size:= self.contentSize;
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sc.setFrame( scFrame );
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updateDocSize(sc, sc.documentView, sc.horizontalScroller, sc.verticalScroller);
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end;
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{ TCocoaManualScrollView }
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function TCocoaManualScrollView.initWithFrame(frameRect: NSRect): id;
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begin
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Result:=inherited;
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self.manager:= TCocoaScrollStyleManagerLegacy.createForScrollView(self);
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end;
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procedure TCocoaManualScrollView.dealloc;
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begin
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if Assigned(fhscroll) then fhscroll.release;
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if Assigned(fvscroll) then fvscroll.release;
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inherited dealloc;
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if Assigned(fhscroll) then begin
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fhscroll.removeFromSuperview;
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fhscroll.manager:= nil;
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fhscroll.release;
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end;
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if Assigned(fvscroll) then begin
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fvscroll.removeFromSuperview;
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fvscroll.manager:= nil;
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fvscroll.release;
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end;
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FreeAndNil(manager);
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end;
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procedure TCocoaManualScrollView.setFrame(newValue: NSRect);
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begin
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inherited setFrame(newValue);
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manager.updateLayout;
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end;
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function TCocoaManualScrollView.lclGetCallback: ICommonCallback;
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@ -592,58 +589,18 @@ end;
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procedure TCocoaManualScrollView.setHasVerticalScroller(doshow: Boolean);
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begin
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if doshow then
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begin
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if not Assigned(fvscroll) then
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fvscroll := allocVerticalScroller(true);
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if fvscroll.isHidden then
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begin
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{$ifdef BOOLFIX}
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fvscroll.setHidden_(Ord(false));
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{$else}
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fvscroll.setHidden(false);
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{$endif}
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end;
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end
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else if Assigned(fvscroll) and not fvscroll.isHidden then
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begin
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{$ifdef BOOLFIX}
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fvscroll.setHidden_(Ord(true));
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{$else}
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fvscroll.setHidden(true);
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{$endif}
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end;
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updateDocSize(self, fdocumentView, fhscroll, fvscroll);
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if NOT Assigned(fvscroll) and doshow then
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fvscroll:= self.allocVerticalScroller( True );
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manager.activeScrollBar( fvscroll, doshow );
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manager.updateLayout;
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end;
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procedure TCocoaManualScrollView.setHasHorizontalScroller(doshow: Boolean);
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begin
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if doshow then
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begin
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if not Assigned(fhscroll) then
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fhscroll := allocHorizontalScroller(true);
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if fhscroll.isHidden then
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begin
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{$ifdef BOOLFIX}
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fhscroll.setHidden_(Ord(false));
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{$else}
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fhscroll.setHidden(false);
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{$endif}
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end;
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end
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else if Assigned(fhscroll) and (not fhscroll.isHidden) then
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begin
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{$ifdef BOOLFIX}
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fhscroll.setHidden_(Ord(true));
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{$else}
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fhscroll.setHidden(true);
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{$endif}
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end;
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updateDocSize(self, fdocumentView, fhscroll, fvscroll);
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if NOT Assigned(fhscroll) and doshow then
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fhscroll:= self.allocHorizontalScroller( True );
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manager.activeScrollBar( fhscroll, doshow );
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manager.updateLayout;
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end;
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function TCocoaManualScrollView.hasVerticalScroller: Boolean;
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@ -666,7 +623,7 @@ begin
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Result:=fvscroll;
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end;
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function TCocoaManualScrollView.allocHorizontalScroller(avisible: Boolean): NSScroller;
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function TCocoaManualScrollView.allocHorizontalScroller(avisible: Boolean): TCocoaScrollBar;
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var
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r : NSRect;
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f : NSRect;
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@ -680,13 +637,13 @@ begin
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w := NSScroller.scrollerWidthForControlSize_scrollerStyle(
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fhscroll.controlSize, fhscroll.preferredScrollerStyle);
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r := NSMakeRect(0, 0, Max(f.size.width,w+1), w); // width<height to create a horizontal scroller
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allocScroller( self, fhscroll, r, avisible);
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fhscroll.setAutoresizingMask(NSViewWidthSizable);
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fhscroll := allocScroller( self, r, avisible);
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fhscroll.setAutoresizingMask(NSViewWidthSizable);
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Result := fhscroll;
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end;
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end;
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function TCocoaManualScrollView.allocVerticalScroller(avisible: Boolean): NSScroller;
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function TCocoaManualScrollView.allocVerticalScroller(avisible: Boolean): TCocoaScrollBar;
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var
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r : NSRect;
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f : NSRect;
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@ -700,7 +657,7 @@ begin
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w := NSScroller.scrollerWidthForControlSize_scrollerStyle(
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fvscroll.controlSize, fvscroll.preferredScrollerStyle);
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r := NSMakeRect(0, 0, w, Max(f.size.height,w+1)); // height<width to create a vertical scroller
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allocScroller( self, fvscroll, r, avisible);
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fvscroll := allocScroller( self, r, avisible);
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if self.isFlipped then
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fvscroll.setAutoresizingMask(NSViewHeightSizable or NSViewMaxXMargin)
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else
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@ -922,6 +879,81 @@ end;
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{ TCocoaScrollBar }
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procedure TCocoaScrollBar.dealloc;
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begin
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FreeAndNil(manager);
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effect.onDestroy;
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effect.release;
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inherited dealloc;
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end;
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procedure TCocoaScrollBar.drawKnob;
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var
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rect: NSRect;
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path: NSBezierPath;
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begin
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self.manager.onDrawKnob(self);
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end;
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procedure TCocoaScrollBar.drawKnobSlotInRect_highlight(slotRect: NSRect;
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flag: ObjCBOOL);
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var
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drawSlot: Boolean;
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begin
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drawSlot:= self.manager.onDrawKnobSlot(self, slotRect);
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if drawSlot then
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Inherited;
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end;
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procedure TCocoaScrollBar.setDoubleValue(newValue: double);
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var
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proportion: CGFloat;
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begin
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proportion:= self.knobProportion;
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manager.onKnobValueUpdated( self, newValue, proportion );
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inherited;
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end;
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procedure TCocoaScrollBar.setKnobProportion(newValue: CGFloat);
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var
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position: CGFloat;
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begin
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position:= self.doubleValue;
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manager.onKnobValueUpdated( self, position, newValue );
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inherited;
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end;
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procedure TCocoaScrollBar.updateTrackingAreas;
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var
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i: NSTrackingArea;
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const
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options: NSTrackingAreaOptions = NSTrackingMouseEnteredAndExited
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or NSTrackingActiveAlways;
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begin
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if Assigned(trackingArea) then begin
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removeTrackingArea(trackingArea);
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trackingArea:= nil;
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end;
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trackingArea:= NSTrackingArea.alloc.initWithRect_options_owner_userInfo(
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self.bounds,
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options,
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self,
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nil);
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self.addTrackingArea( trackingArea );
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trackingArea.release;
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end;
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procedure TCocoaScrollBar.mouseEntered(theEvent: NSEvent);
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begin
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manager.onMouseEntered(self);
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end;
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procedure TCocoaScrollBar.mouseExited(theEvent: NSEvent);
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begin
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manager.onMouseExited( self );
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end;
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procedure TCocoaScrollBar.actionScrolling(sender: NSObject);
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var
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event : NSEvent;
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@ -1160,12 +1192,6 @@ begin
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end;
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end;
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procedure TCocoaScrollBarEffectAlpha.dealloc;
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begin
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Writeln( 'TCocoaScrollBarEffectAlpha.dealloc' );
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inherited dealloc;
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end;
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{ TCocoaScrollStyleManager }
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constructor TCocoaScrollStyleManager.createForScrollBar;
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@ -1324,7 +1350,6 @@ procedure TCocoaScrollStyleManagerLegacy.onMouseEntered(scroller: NSScroller
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var
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effect: TCocoaScrollBarEffectAlpha;
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begin
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Writeln( 'onMouseEntered' );
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effect:= TCocoaScrollBarEffectAlpha(TCocoaScrollBar(scroller).effect);
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effect.fade( 0.05, 0.5 );
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end;
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@ -1334,7 +1359,6 @@ procedure TCocoaScrollStyleManagerLegacy.onMouseExited(scroller: NSScroller
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var
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effect: TCocoaScrollBarEffectAlpha;
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begin
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Writeln( 'onMouseExited' );
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effect:= TCocoaScrollBarEffectAlpha(TCocoaScrollBar(scroller).effect);
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effect.fade( -0.05, 0.25 );
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end;
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