mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-04-22 19:59:37 +02:00
MG: gradient fill, minor issues from Andrew
git-svn-id: trunk@3328 -
This commit is contained in:
lazarus
parent
22a70e8c85
commit
11279dd04b
@ -4205,7 +4205,7 @@ begin
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Left:=0;
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Width:=MaxX-Left-Left;
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Height:=MaxY-Top;
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Options:=[tvoAutoExpand, tvoReadOnly, tvoShowButtons, tvoShowRoot,
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Options:=[tvoReadOnly, tvoShowButtons, tvoShowRoot,
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tvoShowLines, tvoRowSelect, tvoKeepCollapsedNodes, tvoShowSeparators];
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OnMouseUp:=@KeyMappingTreeViewMouseUp;
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Images:=Self.ImageList;
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@ -319,31 +319,25 @@ const
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function StrToVKCode(const s: string): integer;
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var
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i: integer;
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Data: Pointer;
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begin
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Result:=VK_UNKNOWN;
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if VirtualKeyStrings=nil then
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VirtualKeyStrings:=TStringHashList.Create(true);
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i:=-1; //VirtualKeyStrings(s);
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if i>=0 then begin
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end else begin
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if (length(UnknownVKPrefix)<length(s))
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and (AnsiStrLComp(PChar(s),PChar(UnknownVKPrefix),length(UnknownVKPrefix))=0)
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then
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Result:=StrToIntDef(copy(s,7,length(s)-8),VK_UNKNOWN)
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else if s<>'none' then begin
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if (length(UnknownVKPrefix)<length(s))
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and (AnsiStrLComp(PChar(s),PChar(UnknownVKPrefix),length(UnknownVKPrefix))=0)
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then
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Result:=StrToIntDef(copy(s,7,length(s)-8),VK_UNKNOWN)
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else if s<>'none' then begin
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if VirtualKeyStrings=nil then begin
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VirtualKeyStrings:=TStringHashList.Create(true);
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for i:=1 to 300 do
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if KeyAndShiftStateToStr(i,[])=s then begin
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Result:=i;
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exit;
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end;
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VirtualKeyStrings.Add(KeyAndShiftStateToStr(i,[]),Pointer(i));
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for i:=VK_IRREGULAR+33 to VK_IRREGULAR+255 do
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if KeyAndShiftStateToStr(i,[])=s then begin
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Result:=i;
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exit;
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end;
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VirtualKeyStrings.Add(KeyAndShiftStateToStr(i,[]),Pointer(i));
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end;
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end;
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Data:=VirtualKeyStrings.Data[s];
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if Data<>nil then
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Result:=integer(Data);
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end;
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function ShowKeyMappingEditForm(Index:integer;
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20
lcl/forms.pp
20
lcl/forms.pp
@ -62,16 +62,20 @@ type
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FKind: TScrollBarKind;
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FIncrement: TScrollBarInc;
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FPage: TScrollBarInc;
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FPosition: Integer;
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FRange: Integer;
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FSmooth : Boolean;
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FVisible: Boolean;
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procedure SetPosition(Value: Integer);
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procedure SetRange(Value: Integer);
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procedure SetSmooth(Value: Boolean);
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procedure SetVisible(Value: Boolean);
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protected
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procedure AutoCalcRange;
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Procedure UpdateScrollBar;
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procedure ScrollHandler(var Message: TLMScroll);
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public
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constructor Create(AControl: TScrollingWinControl; AKind: TScrollBarKind);
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@ -84,9 +88,11 @@ type
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property Kind: TScrollBarKind read FKind;
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published
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property Increment: TScrollBarInc read FIncrement write FIncrement default 8;
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property Page: TScrollBarInc read FPage write FPage default 80;
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property Smooth : Boolean read FSmooth write SetSmooth;// default True
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property Position: Integer read FPosition write SetPosition default 0;
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property Range: Integer read FRange write SetRange default 0;
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property Visible: Boolean read FVisible write SetVisible default True;
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property Visible: Boolean read FVisible write SetVisible;// default True;
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end;
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TScrollingWinControl = class(TWinControl)
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@ -94,9 +100,9 @@ type
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FHorzScrollBar : TControlScrollBar;
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FVertScrollBar : TControlScrollBar;
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FAutoScroll : Boolean;
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FOnPaint: TNotifyEvent;
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FCanvas : TControlCanvas;
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IsUpdating : Boolean;
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@ -108,7 +114,6 @@ type
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Protected
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procedure AlignControls(AControl: TControl; var ARect: TRect); override;
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procedure CreateWnd; override;
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property AutoScroll: Boolean read FAutoScroll write SetAutoScroll default True;
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Procedure WMEraseBkgnd(var Message: TLMEraseBkgnd); message LM_ERASEBKGND;
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procedure WMPaint(var message: TLMPaint); message LM_PAINT;
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procedure WMSize(var Message: TLMSize); message LM_Size;
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@ -127,20 +132,19 @@ type
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property Canvas: TControlCanvas read FCanvas;
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published
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property AutoScroll: Boolean read FAutoScroll write SetAutoScroll;
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property HorzScrollBar: TControlScrollBar read FHorzScrollBar write SetHorzScrollBar stored StoreScrollBars;
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property VertScrollBar: TControlScrollBar read FVertScrollBar write SetVertScrollBar stored StoreScrollBars;
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end;
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TScrollBox = class(TScrollingWinControl)
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private
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Procedure DoAutoSize; Override;
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public
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constructor Create(AOwner: TComponent); override;
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published
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property Align;
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property Anchors;
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property AutoScroll default True;
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property AutoSize;
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property AutoSize default True;
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//property AutoScroll;
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//property BiDiMode;
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//property BorderStyle: TBorderStyle read FBorderStyle write SetBorderStyle default bsSingle;
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property Constraints;
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@ -27,9 +27,9 @@ begin
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ACanvas.CopyRect(Rect, Self.Canvas, Classes.Rect(0, 0, Width, Height));
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end;
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constructor TBitmap.Create;
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constructor TBitmap.VirtualCreate;
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begin
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inherited Create;
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inherited VirtualCreate;
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FPixelFormat := pfDevice;
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FCanvas := TBitmapCanvas.Create(Self);
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FImage := TBitmapImage.Create;
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@ -154,8 +154,8 @@ end;
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Procedure TBitmap.LoadFromFile(Const Filename : String);
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begin
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Inherited;
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//LoadFromXPMFile(FileName);
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//Inherited;
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LoadFromXPMFile(FileName);
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end;
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Procedure TBitmap.NewImage(NHandle: HBITMAP; NPallette: HPALETTE;
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@ -460,6 +460,9 @@ end;
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{ =============================================================================
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$Log$
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Revision 1.18 2002/09/12 05:56:15 lazarus
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MG: gradient fill, minor issues from Andrew
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Revision 1.17 2002/09/10 06:49:19 lazarus
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MG: scrollingwincontrol from Andrew
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@ -12,9 +12,15 @@
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* *
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*****************************************************************************
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}
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constructor TGraphic.Create;
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begin
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inherited Create;
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VirtualCreate;
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end;
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constructor TGraphic.VirtualCreate;
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begin
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Inherited Create;
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end;
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procedure TGraphic.DefineProperties(Filer: TFiler);
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@ -13,30 +13,8 @@
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*****************************************************************************
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}
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Procedure TScrollBox.DoAutoSize;
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begin
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Inherited DoAutoSize;
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If AutoSize then begin
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AutoSizing := True;
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Height := ClientHeight + 4;
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AutoSizing := False;
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end;
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end;
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constructor TScrollBox.Create(AOwner: TComponent);
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begin
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Inherited Create(AOwner);
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fCompStyle:= csScrollBox;
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AutoSize := False;
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AutoScroll := True;
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ControlStyle := [csAcceptsControls, csClickEvents, csDoubleClicks];
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Left := 0;
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Top := 0;
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Width := 200;
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Height := 200;
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Visible := True;
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ParentColor := False;
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ParentFont := False;
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Ctl3D := True;
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Color := clWhite;
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end;
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@ -23,7 +23,7 @@ procedure TControlScrollBar.SetPosition(Value: Integer);
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FPosition := Value;
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FControl.ScrollBy(0, Tmp - FPosition);
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if GetScrollPos(FControl.Handle, SB_VERT) <> FPosition then
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SetScrollPos(FControl.Handle, SB_VERT, FPosition, True);
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SetScrollPos(FControl.Handle, SB_VERT, FPosition, Visible);
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end;
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Procedure SetHPosition;
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@ -34,7 +34,7 @@ procedure TControlScrollBar.SetPosition(Value: Integer);
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FPosition := Value;
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FControl.ScrollBy(Tmp - FPosition, 0);
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if GetScrollPos(FControl.Handle, SB_HORZ) <> FPosition then
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SetScrollPos(FControl.Handle, SB_HORZ, FPosition, True);
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SetScrollPos(FControl.Handle, SB_HORZ, FPosition, Visible);
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end;
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begin
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@ -43,18 +43,21 @@ begin
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exit;
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end;
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if FAutoRange < 0 then
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AutoCalcRange;
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If fControl.AutoScroll then begin
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if FAutoRange < 0 then
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AutoCalcRange;
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if Value > FAutoRange then begin
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SetPosition(FAutoRange);
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exit;
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if Value > FAutoRange then begin
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SetPosition(FAutoRange);
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exit;
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end;
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end;
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if Kind = sbVertical then
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SetVPosition
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else
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SetHPosition;
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FControl.UpdateScrollBars;
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end;
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procedure TControlScrollBar.SetRange(Value: Integer);
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@ -63,7 +66,6 @@ begin
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Range := 0;
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exit;
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end;
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FControl.FAutoScroll := False;
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FRange := Value;
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FControl.UpdateScrollBars;
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end;
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@ -74,6 +76,12 @@ begin
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FControl.UpdateScrollBars;
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end;
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procedure TControlScrollBar.SetSmooth(Value: Boolean);
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begin
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FSmooth := Value;
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FControl.UpdateScrollBars;
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end;
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procedure TControlScrollBar.AutoCalcRange;
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procedure AutoCalcVRange;
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@ -112,11 +120,12 @@ procedure TControlScrollBar.AutoCalcRange;
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begin
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if FControl.FAutoScroll then begin
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FVisible := True;
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if Kind = sbVertical then
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AutoCalcVRange
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else
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AutoCalcHRange;
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FControl.FAutoScroll := True;
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FControl.UpdateScrollBars;
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end;
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end;
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@ -127,7 +136,8 @@ var
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procedure UpdateVScroll;
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begin
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With FControl do begin
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ScrollInfo.nPage := ClientHeight + 1;
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Page := ClientHeight + 1;
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ScrollInfo.nPage := Page;
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if Visible then begin
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FAutoRange := (Range - ClientHeight)*Shortint(Range >= ClientHeight);
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@ -135,15 +145,22 @@ var
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end
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else
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ScrollInfo.nMax := 0;
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SetScrollInfo(Handle, SB_VERT, ScrollInfo, FVisible or
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(FAutoScroll and (ScrollInfo.nMax > 0) and (ScrollInfo.nMax > Height)));
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If (Self.Visible and not FAutoScroll) or (FAutoScroll and (ScrollInfo.nMax > 0) and
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(ScrollInfo.nMax > Height))
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then
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Self.FVisible := True
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else
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Self.FVisible := False;
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SetScrollInfo(Handle, SB_VERT, ScrollInfo, Self.Visible);
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end;
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end;
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procedure UpdateHScroll;
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begin
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With FControl do begin
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ScrollInfo.nPage := ClientWidth + 1;
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Page := ClientWidth + 1;
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ScrollInfo.nPage := Page;
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if Visible then begin
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FAutoRange := (Range - ClientWidth)*Shortint(Range >= ClientWidth);
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@ -151,8 +168,14 @@ var
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end
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else
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ScrollInfo.nMax := 0;
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SetScrollInfo(Handle, SB_HORZ, ScrollInfo, FVisible or
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(FAutoScroll and (ScrollInfo.nMax > 0) and (ScrollInfo.nMax > Width)));
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If (Self.Visible and not FAutoScroll) or (FAutoScroll and (ScrollInfo.nMax > 0) and
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(ScrollInfo.nMax > Width))
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then
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Self.FVisible := True
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else
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Self.FVisible := False;
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SetScrollInfo(Handle, SB_HORZ, ScrollInfo, Self.Visible);
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end;
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end;
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@ -170,7 +193,44 @@ begin
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else
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UpdateHScroll;
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SetPosition(FPosition);
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SetPosition(ScrollInfo.nTrackPos);
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//I am not positive that this is right
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//but it apeared to be when I compared
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//results to Delphi 4
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if Smooth then
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Increment := Page div 10;
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end;
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procedure TControlScrollBar.ScrollHandler(var Message: TLMScroll);
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var
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NewPos: Longint;
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begin
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If (csDesigning in FControl.ComponentState) then
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exit;//prevent wierdness in IDE.
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with Message do
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begin
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NewPos := FPosition;
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case TScrollCode(ScrollCode) of
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scLineUp:
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Dec(NewPos, FIncrement);
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scLineDown:
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Inc(NewPos, FIncrement);
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scPageUp:
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Dec(NewPos, FPage);
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scPageDown:
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Inc(NewPos, FPage);
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scPosition, scTrack:
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NewPos := Pos;
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scTop:
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NewPos := 0;
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scBottom:
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NewPos := Range;
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end;
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if NewPos < 0 then NewPos := 0;
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if NewPos > Range then NewPos := Range;
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SetPosition(NewPos);
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end;
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end;
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|
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constructor TControlScrollBar.Create(AControl: TScrollingWinControl; AKind: TScrollBarKind);
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@ -178,6 +238,12 @@ begin
|
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Inherited Create;
|
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FControl := AControl;
|
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FKind := AKind;
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FPage := 80;
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FIncrement := 8;
|
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FPosition := 0;
|
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FRange := 0;
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//FSmooth := True;
|
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//FVisible := True;
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end;
|
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|
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procedure TControlScrollBar.Assign(Source: TPersistent);
|
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@ -197,7 +263,7 @@ end;
|
||||
function TControlScrollBar.IsScrollBarVisible: Boolean;
|
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begin
|
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Result := (FControl <> nil) and FControl.HandleAllocated and
|
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(FControl.Visible) and FVisible;
|
||||
(FControl.Visible) and (Self.Visible);
|
||||
end;
|
||||
|
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function TControlScrollBar.ScrollPos: Integer;
|
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@ -210,14 +276,11 @@ begin
|
||||
if FAutoScroll <> Value then
|
||||
begin
|
||||
FAutoScroll := Value;
|
||||
if not Value then begin
|
||||
HorzScrollBar.Range := 0;
|
||||
VertScrollBar.Range := 0;
|
||||
end
|
||||
else begin
|
||||
if Value then begin
|
||||
HorzScrollBar.AutoCalcRange;
|
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VertScrollBar.AutoCalcRange;
|
||||
end;
|
||||
UpdateScrollBars;
|
||||
end;
|
||||
end;
|
||||
|
||||
@ -231,12 +294,15 @@ procedure TScrollingWinControl.AlignControls(AControl: TControl; var ARect: TRec
|
||||
begin
|
||||
HorzScrollBar.AutoCalcRange;
|
||||
VertScrollBar.AutoCalcRange;
|
||||
If not AutoScroll then
|
||||
UpdateScrollBars;
|
||||
inherited AlignControls(AControl, ARect);
|
||||
end;
|
||||
|
||||
Procedure TScrollingWinControl.WMEraseBkgnd(var Message: TLMEraseBkgnd);
|
||||
begin
|
||||
with Message do
|
||||
with Message do begin
|
||||
FCanvas.Lock;
|
||||
try
|
||||
FCanvas.Handle := DC;
|
||||
try
|
||||
@ -248,6 +314,7 @@ begin
|
||||
finally
|
||||
FCanvas.Unlock;
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TScrollingWinControl.WMPaint(var Message: TLMPaint);
|
||||
@ -322,23 +389,27 @@ end;
|
||||
|
||||
Procedure TScrollingWinControl.WMVScroll(var Message : TLMVScroll);
|
||||
begin
|
||||
VertScrollbar.Position := Message.Pos;
|
||||
VertScrollbar.ScrollHandler(Message);
|
||||
end;
|
||||
|
||||
Procedure TScrollingWinControl.WMHScroll(var Message : TLMHScroll);
|
||||
begin
|
||||
HorzScrollbar.Position := Message.Pos;
|
||||
HorzScrollbar.ScrollHandler(Message);
|
||||
end;
|
||||
|
||||
Constructor TScrollingWinControl.Create(AOwner : TComponent);
|
||||
begin
|
||||
Inherited Create(AOwner);
|
||||
|
||||
FCanvas := TControlCanvas.Create;
|
||||
FCanvas.Control := Self;
|
||||
|
||||
FAutoScroll := True;
|
||||
FVertScrollbar := TControlScrollBar.Create(Self, sbVertical);
|
||||
FHorzScrollbar := TControlScrollBar.Create(Self, sbHorizontal);
|
||||
|
||||
ControlStyle := [csAcceptsControls, csClickEvents, csDoubleClicks];
|
||||
|
||||
SetBounds(0,0, 200, 200);
|
||||
end;
|
||||
|
||||
Destructor TScrollingWinControl.Destroy;
|
||||
|
||||
@ -39,7 +39,7 @@ uses
|
||||
ResourceString
|
||||
rsMbYes = '&Yes';
|
||||
rsMbNo = '&No';
|
||||
rsMbOK = 'OK';
|
||||
rsMbOK = '&OK';
|
||||
rsMbCancel = 'Cancel';
|
||||
rsMbAbort = 'Abort';
|
||||
rsMbRetry = '&Retry';
|
||||
|
||||
@ -641,6 +641,13 @@ const
|
||||
DIB_RGB_COLORS = 0; { color table in RGBs }
|
||||
DIB_PAL_COLORS = 1; { color table in palette indices }
|
||||
|
||||
const
|
||||
{ Gradient Fill Modes }
|
||||
GRADIENT_FILL_RECT_H = 0;
|
||||
GRADIENT_FILL_RECT_V = 1;
|
||||
GRADIENT_FILL_TRIANGLE = 2;
|
||||
|
||||
|
||||
type
|
||||
|
||||
PNMHdr = ^TNMHdr;
|
||||
@ -718,6 +725,33 @@ type
|
||||
SIZE = tagSIZE;
|
||||
|
||||
|
||||
{GradientFill Structures}
|
||||
PTriVertex = ^tagTriVertex;
|
||||
tagTRIVERTEX = packed record
|
||||
x: Longint;
|
||||
y: Longint;
|
||||
Red: Shortint;
|
||||
Green: Shortint;
|
||||
Blue: Shortint;
|
||||
Alpha: Shortint;
|
||||
end;
|
||||
TRIVERTEX = tagTRIVERTEX;
|
||||
|
||||
PGradientTriangle = ^tagGradientTriangle;
|
||||
tagGRADIENTTRIANGLE = packed record
|
||||
Vertex1: Longint;
|
||||
Vertex2: Longint;
|
||||
Vertex3: Longint;
|
||||
end;
|
||||
GRADIENTTRIANGLE = tagGRADIENTTRIANGLE;
|
||||
|
||||
PGradientRect = ^tagGradientRect;
|
||||
tagGRADIENTRECT = packed record
|
||||
UpperLeft: Longint;
|
||||
LowerRight: Longint;
|
||||
end;
|
||||
GRADIENTRECT = tagGRADIENTRECT;
|
||||
|
||||
{ Bitmap Header Definition }
|
||||
PBitmap = ^TagBitmap;
|
||||
tagBITMAP = packed record
|
||||
@ -1158,6 +1192,17 @@ const
|
||||
SM_MOUSEWHEELPRESENT = 75;
|
||||
SM_CMETRICS = 76;
|
||||
|
||||
//==============================================
|
||||
// GetDeviceCaps constants
|
||||
//==============================================
|
||||
HORZSIZE = 4;
|
||||
VERTSIZE = 6;
|
||||
HORZRES = 8;
|
||||
VERTRES = 10;
|
||||
BITSPIXEL = 12;
|
||||
LOGPIXELSX = 88;
|
||||
LOGPIXELSY = 90;
|
||||
|
||||
type
|
||||
|
||||
TFarProc = Pointer;
|
||||
@ -1516,6 +1561,9 @@ end.
|
||||
|
||||
{
|
||||
$Log$
|
||||
Revision 1.16 2002/09/12 05:56:15 lazarus
|
||||
MG: gradient fill, minor issues from Andrew
|
||||
|
||||
Revision 1.15 2002/09/11 15:04:49 lazarus
|
||||
MG: added stringhashlist.pas
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user