mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-08-08 14:35:58 +02:00
Starts preparing the base class for tcdtabcontrol and tcdpagecontrol
git-svn-id: trunk@32994 -
This commit is contained in:
sekelsenmat
parent
d175d9df9a
commit
37be44f247
@ -429,6 +429,68 @@ type
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{TCDTabControl}
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{ TCDCustomTabControl }
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TCDCustomTabControlDrawer = class;
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TCDCustomTabControlDrawerWinCE = class;
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TCDCustomTabControl = class(TCDControl)
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private
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FTabIndex: Integer;
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FTabs: TStringList;
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FDrawerWinCE: TCDCustomTabControlDrawerWinCE;
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procedure HandleTabsChange(Sender: TObject);
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procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
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X, Y: integer); override;
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//procedure MouseMove(Shift: TShiftState; X, Y: integer); override;
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//procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: integer); override;
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//procedure MouseEnter; override;
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//procedure MouseLeave; override;
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procedure PrepareCurrentDrawer(); override;
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protected
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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procedure Paint; override;
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public
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CustomDrawer: TCDCustomTabControlDrawer; // Fill the field to use the dsCustom draw mode
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property Tabs: TStringList read FTabs;
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end;
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{ TCDCustomTabControlDrawer }
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TCDCustomTabControlDrawer = class(TCDControlDrawer)
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public
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CDTabControl: TCDCustomTabControl;
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function GetPageIndexFromXY(x, y: integer): integer; virtual; abstract;
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function GetTabHeight(AIndex: Integer): Integer; virtual; abstract;
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function GetTabWidth(ADest: TCanvas; AIndex: Integer): Integer; virtual; abstract;
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procedure DrawToIntfImage(ADest: TFPImageCanvas; FPImg: TLazIntfImage); virtual; abstract;
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procedure DrawToCanvas(ADest: TCanvas); virtual; abstract;
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procedure DrawTabSheet(ADest: TCanvas); virtual; abstract;
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procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
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X, Y: integer); virtual; abstract;
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end;
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{ TCDCustomTabControlDrawerWinCE }
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TCDCustomTabControlDrawerWinCE = class(TCDCustomTabControlDrawer)
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private
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StartIndex: integer; //FEndIndex
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LeftmostTabVisibleIndex: Integer;
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procedure DrawTabs(ADest: TCanvas);
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procedure DrawTab(ADest: TCanvas; AIndex: Integer; ACurStartLeftPos: Integer);
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public
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function GetPageIndexFromXY(x, y: integer): integer; override;
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function GetTabHeight(AIndex: Integer): Integer; override;
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function GetTabWidth(ADest: TCanvas; AIndex: Integer): Integer; override;
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function GetClientRect(AControl: TCDControl): TRect; override;
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procedure DrawToIntfImage(ADest: TFPImageCanvas; FPImg: TLazIntfImage); override;
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procedure DrawToCanvas(ADest: TCanvas); override;
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procedure DrawTabSheet(ADest: TCanvas); override;
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procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
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X, Y: integer); override;
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end;
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TCDTabSheet = class;
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TTabItem = class(TCollectionItem)
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@ -720,6 +782,310 @@ begin
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end;
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end;
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{ TCDCustomTabControlDrawerWinCE }
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procedure TCDCustomTabControlDrawerWinCE.DrawTabs(ADest: TCanvas);
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var
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CurVisibleIndex: Integer = 0;
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IsPainting: Boolean = False;
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CurPage: TCDTabSheet;
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CurStartLeftPos: Integer = 0;
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i: Integer;
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begin
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for i := 0 to CDTabControl.Tabs.Count - 1 do
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begin
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{ CurPage := CDPageControl.GetPage(i);
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if CurPage.Visible then
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begin}
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if CurVisibleIndex = LeftmostTabVisibleIndex then
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IsPainting := True;
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if IsPainting then
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begin
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DrawTab(ADest, i, CurStartLeftPos);
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CurStartLeftPos := CurStartLeftPos + GetTabWidth(ADest, i);
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end;
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Inc(CurVisibleIndex);
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// end;
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end;
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end;
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procedure TCDCustomTabControlDrawerWinCE.DrawTab(ADest: TCanvas;
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AIndex: Integer; ACurStartLeftPos: Integer);
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var
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IsSelected: Boolean;
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lTabWidth, lTabHeight, lTabTopPos: Integer;
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Points: array of TPoint;
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lCaption: String;
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begin
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IsSelected := CDTabControl.FTabIndex = AIndex;
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if IsSelected then
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begin
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lTabTopPos := 0;
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lTabHeight := GetTabHeight(AIndex);
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end
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else
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begin
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lTabTopPos := 5;
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lTabHeight := GetTabHeight(AIndex)-5;
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end;
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lTabWidth := GetTabWidth(ADest, AIndex);
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// Fill the area inside the outer border
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ADest.Pen.Style := psClear;
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ADest.Brush.Style := bsSolid;
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ADest.Brush.Color := clWhite;
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SetLength(Points, 5);
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Points[0] := Point(ACurStartLeftPos, lTabTopPos);
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Points[1] := Point(ACurStartLeftPos+lTabWidth-5, lTabTopPos);
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Points[2] := Point(ACurStartLeftPos+lTabWidth, lTabTopPos+5);
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Points[3] := Point(ACurStartLeftPos+lTabWidth, lTabTopPos+lTabHeight);
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Points[4] := Point(ACurStartLeftPos, lTabTopPos+lTabHeight);
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ADest.Polygon(Points);
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// Draw the outer border only in the top and right sides,
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// and bottom if unselected
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ADest.Pen.Style := psSolid;
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ADest.Brush.Style := bsClear;
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ADest.Pen.Color := ColorToRGB($009C9B91);
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ADest.MoveTo(ACurStartLeftPos+1, lTabTopPos);
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ADest.LineTo(ACurStartLeftPos+lTabWidth-5, lTabTopPos);
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ADest.LineTo(ACurStartLeftPos+lTabWidth, lTabTopPos+5);
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ADest.LineTo(ACurStartLeftPos+lTabWidth, lTabTopPos+lTabHeight);
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// If it is selected, add a selection frame
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if IsSelected then
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begin
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ADest.Pen.Color := ColorToRGB($00D6C731);
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ADest.Pen.Style := psSolid;
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ADest.Brush.Style := bsClear;
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ADest.Rectangle(
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ACurStartLeftPos+3, lTabTopPos+3,
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ACurStartLeftPos+lTabWidth-5, lTabTopPos+lTabHeight-5
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);
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end;
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// Now the text
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lCaption := CDTabControl.Tabs.Strings[CDTabControl.FTabIndex];
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ADest.TextOut(ACurStartLeftPos+5, lTabTopPos+5, lCaption);
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end;
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function TCDCustomTabControlDrawerWinCE.GetPageIndexFromXY(x, y: integer
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): integer;
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begin
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Result := 1;
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end;
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function TCDCustomTabControlDrawerWinCE.GetTabHeight(AIndex: Integer): Integer;
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begin
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if CDTabControl.Font.Size = 0 then
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Result := 32
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else
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Result := CDTabControl.Font.Size + 22;
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end;
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function TCDCustomTabControlDrawerWinCE.GetTabWidth(ADest: TCanvas;
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AIndex: Integer): Integer;
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const
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TCDTabControl_WinCE_TabCaptionExtraWidth = 20;
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var
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lCaption: string;
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begin
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lCaption := CDTabControl.Tabs.Strings[CDTabControl.FTabIndex];
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if ADest <> nil then
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begin
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Result := ADest.TextWidth(lCaption) + TCDTabControl_WinCE_TabCaptionExtraWidth;
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//lTabInfo := TTabSheet(CDTabControl.Tabs.Objects[AIndex]);
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//lTabInfo.StoredWidth := Result;
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end
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// else
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// Result := CurPage.StoredWidth;
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end;
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function TCDCustomTabControlDrawerWinCE.GetClientRect(AControl: TCDControl
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): TRect;
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var
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lCaptionHeight: Integer;
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begin
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lCaptionHeight := GetTabHeight(CDTabControl.FTabIndex) - 4;
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Result := Rect(5, lCaptionHeight + 1, CDTabControl.Width - 10,
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CDTabControl.Height - lCaptionHeight - 5);
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end;
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procedure TCDCustomTabControlDrawerWinCE.DrawToIntfImage(ADest: TFPImageCanvas;
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FPImg: TLazIntfImage);
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begin
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end;
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procedure TCDCustomTabControlDrawerWinCE.DrawToCanvas(ADest: TCanvas);
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var
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CaptionHeight: Integer;
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lColor: TColor;
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begin
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CaptionHeight := GetTabHeight(CDTabControl.FTabIndex);
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if CDTabControl.Color = clDefault then lColor := clSilver
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else lColor := ColorToRGB(CDTabControl.Color);
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// Background
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ADest.Brush.Color := lColor;
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ADest.Brush.Style := bsSolid;
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ADest.Pen.Style := psClear;
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ADest.Rectangle(0, 0, CDTabControl.Width, CDTabControl.Height);
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// Frame detail
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ADest.Pixels[CDTabControl.Width - 1, CaptionHeight] := lColor;
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// frame
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ADest.Pen.Style := psSolid;
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ADest.Brush.Style := bsClear;
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ADest.Pen.Color := ColorToRGB($009C9B91);
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if CDTabControl.Tabs.Count = 0 then
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ADest.Rectangle(0, 0, CDTabControl.Width - 2, CDTabControl.Height - 2)
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else
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ADest.Rectangle(0, CaptionHeight, CDTabControl.Width - 2, CDTabControl.Height - 2);
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ADest.Pen.Color := ColorToRGB($00BFCED0);
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ADest.Line(CDTabControl.Width - 1, CaptionHeight + 1,
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CDTabControl.Width - 1, CDTabControl.Height - 1);
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ADest.Line(CDTabControl.Width - 1, CDTabControl.Height - 1, 1,
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CDTabControl.Height - 1);
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// Tabs
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ADest.Font.Name := CDTabControl.Font.Name;
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ADest.Font.Size := CDTabControl.Font.Size;
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// DrawCaptionBar(ADest, Rect(0, 0, CDPageControl.Width -
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// 2, CaptionHeight + 1), CDPageControl.Color, CDPageControl);
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DrawTabs(ADest);
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end;
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procedure TCDCustomTabControlDrawerWinCE.DrawTabSheet(ADest: TCanvas);
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begin
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ADest.Brush.Color := CDTabControl.Color;
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ADest.Brush.Style := bsSolid;
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ADest.Pen.Style := psClear;
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ADest.Rectangle(0, 0, CDTabControl.Width, CDTabControl.Height);
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end;
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procedure TCDCustomTabControlDrawerWinCE.MouseDown(Button: TMouseButton;
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Shift: TShiftState; X, Y: integer);
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var
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i: Integer;
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CurPage: TCDTabSheet;
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CurVisibleIndex: Integer = 0;
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CurStartLeftPos: Integer = 0;
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VisiblePagesStarted: Boolean = False;
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begin
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for i := 0 to CDTabControl.Tabs.Count - 1 do
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begin
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// CurPage := CDPageControl.GetPage(i);
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// if CurPage.Visible then
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// begin
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if CurVisibleIndex = LeftmostTabVisibleIndex then
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VisiblePagesStarted := True;
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if VisiblePagesStarted then
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begin
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if (X > CurStartLeftPos) and
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(X < CurStartLeftPos + GetTabWidth(nil, i)) and
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(Y < GetTabHeight(i)) then
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begin
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//CDPageControl.ActivePage := CurPage;
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Exit;
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end;
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CurStartLeftPos := CurStartLeftPos + GetTabWidth(nil, i);
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end;
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Inc(CurVisibleIndex);
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// end;
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end;
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end;
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{ TCDCustomTabControl }
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procedure TCDCustomTabControl.HandleTabsChange(Sender: TObject);
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begin
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Invalidate;
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end;
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procedure TCDCustomTabControl.MouseDown(Button: TMouseButton;
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Shift: TShiftState; X, Y: integer);
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begin
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TCDPageControlDrawer(FCurrentDrawer).MouseDown(Button, Shift, X, Y);
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inherited MouseDown(Button, Shift, X, Y);
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end;
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procedure TCDCustomTabControl.PrepareCurrentDrawer;
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begin
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case FDrawStyle of
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dsWince: FCurrentDrawer := FDrawerWinCE;
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dsCustom: FCurrentDrawer := CustomDrawer;
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end;
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end;
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constructor TCDCustomTabControl.Create(AOwner: TComponent);
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begin
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inherited Create(AOwner);
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Width := 232;
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Height := 184;
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TabStop := True;
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FDrawerWinCE := TCDCustomTabControlDrawerWinCE.Create;
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TCDCustomTabControlDrawerWinCE(FDrawerWinCE).CDTabControl := Self;
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CustomDrawer := FDrawerWinCE; // Dummy to avoid designer crashes
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FCurrentDrawer := FDrawerWinCE;
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FDrawStyle := dsWinCE;
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ParentColor := True;
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ParentFont := True;
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ControlStyle := [csCaptureMouse, csClickEvents, csDoubleClicks, csDesignInteractive];
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FTabs := TStringList.Create;
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FTabs.OnChange :=@HandleTabsChange;
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end;
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destructor TCDCustomTabControl.Destroy;
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begin
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FTabs.Free;
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inherited Destroy;
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end;
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procedure TCDCustomTabControl.Paint;
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var
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AImage: TLazIntfImage = nil;
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ABmp: TBitmap = nil;
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lCanvas: TFPImageCanvas = nil;
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begin
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inherited Paint;
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ABmp := TBitmap.Create;
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try
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ABmp.Width := Width;
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ABmp.Height := Height;
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AImage := ABmp.CreateIntfImage;
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lCanvas := TFPImageCanvas.Create(AImage);
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TCDCustomTabControlDrawer(FCurrentDrawer).DrawToIntfImage(lCanvas, AImage);
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ABmp.LoadFromIntfImage(AImage);
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ABmp.Canvas.Font.Assign(Font);
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TCDCustomTabControlDrawer(FCurrentDrawer).DrawToCanvas(ABmp.Canvas);
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Canvas.Draw(0, 0, ABmp);
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finally
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if lCanvas <> nil then
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lCanvas.Free;
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if AImage <> nil then
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AImage.Free;
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ABmp.Free;
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end;
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end;
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{ TCustomBitmappedButton }
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procedure TCustomBitmappedButton.DoEnter;
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