david
3b29f73ece
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@8 05c56307-c608-d34a-929d-697000501d7a
705 lines
24 KiB
ObjectPascal
705 lines
24 KiB
ObjectPascal
unit CustomDrawDemoMain;
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interface
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
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cxStyles, cxTL, cxMaskEdit, cxCurrencyEdit, cxMemo, cxCheckBox, Menus,
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cxLookAndFeels, ActnList, ImgList, cxInplaceContainer, cxDBTL,
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cxControls, cxTLData, ComCtrls, StdCtrls, DemoBasicMain,
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cxDBLookupComboBox, cxEdit, cxEditRepositoryItems, Grids, DBGrids, cxGraphics,
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CustomDrawDemoConsts, cxContainer, cxTextEdit, cxCustomData;
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type
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TcxItemCustomDrawInfo = class;
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TcxCustomDrawInfo = class
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private
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FBitmaps: TList;
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FDefaultFont: TFont;
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FCustomDrawData: TList;
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FOwnerDrawText: Boolean;
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function GetBkBitmap(ABkImage: TBkImage): TBitmap;
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function GetCount: Integer;
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function GetItem(ADrawArea: TCustomDrawArea): TcxItemCustomDrawInfo;
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public
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constructor Create;
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destructor Destroy; override;
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procedure AddNewItem(ADrawArea: TCustomDrawArea;
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AItemType: TcxItemCustomDrawType);
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function GetItemByIndex(AIndex: Integer): TcxItemCustomDrawInfo;
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property Bitmaps[ABkImage: TBkImage]: TBitmap read GetBkBitmap;
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property Count: Integer read GetCount;
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property DefaultFont: TFont read FDefaultFont;
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property Items[ADrawArea: TCustomDrawArea]: TcxItemCustomDrawInfo read GetItem; default;
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property OwnerDrawText: Boolean read FOwnerDrawText write FOwnerDrawText;
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end;
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TcxItemCustomDrawInfo = class
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private
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FOwner: TcxCustomDrawInfo;
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FBitmap: TBitmap;
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FBkImageType: TBkImage;
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FDrawArea: TCustomDrawArea;
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FDrawingStyle: TCustomDrawingStyle;
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FColorScheme: TColorScheme;
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FFont: TFont;
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FIsBitmapAssigned: Boolean;
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FIsFontAssigned: Boolean;
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FItemType: TcxItemCustomDrawType;
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FOwnerTextDraw: Boolean;
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function GetBitmap: TBitmap;
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function GetFont: TFont;
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procedure SetBitmap(const Value: TBitmap);
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procedure SetFont(const Value: TFont);
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public
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constructor Create(AOwner: TcxCustomDrawInfo; ADrawArea: TCustomDrawArea;
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AItemType: TcxItemCustomDrawType);
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destructor Destroy; override;
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property Owner: TcxCustomDrawInfo read FOwner;
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property Bitmap: TBitmap read GetBitmap write SetBitmap;
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property BkImageType: TBkImage read FBkImageType write FBkImageType;
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property DrawArea: TCustomDrawArea read FDrawArea;
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property DrawingStyle: TCustomDrawingStyle read FDrawingStyle write FDrawingStyle;
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property ColorScheme: TColorScheme read FColorScheme write FColorScheme;
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property Font: TFont read GetFont write SetFont;
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property ItemType: TcxItemCustomDrawType read FItemType;
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property OwnerTextDraw: Boolean read FOwnerTextDraw write FOwnerTextDraw;
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end;
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TCustomDrawDemoMainForm = class(TDemoBasicMainForm)
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miSeparator1: TMenuItem;
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miGridLookFeel: TMenuItem;
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miKind: TMenuItem;
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miFlat: TMenuItem;
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miStandard: TMenuItem;
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miUltraFlat: TMenuItem;
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miNativeStyle: TMenuItem;
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miSeparator2: TMenuItem;
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cxDBTreeList: TcxDBTreeList;
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miShowCustomDrawEditor: TMenuItem;
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cxDBTreeListID: TcxDBTreeListColumn;
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cxDBTreeListPARENTID: TcxDBTreeListColumn;
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cxDBTreeListNAME: TcxDBTreeListColumn;
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cxDBTreeListBUDGET: TcxDBTreeListColumn;
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cxDBTreeListPHONE: TcxDBTreeListColumn;
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cxDBTreeListFAX: TcxDBTreeListColumn;
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cxDBTreeListVACANCY: TcxDBTreeListColumn;
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cxDBTreeListManager: TcxDBTreeListColumn;
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cxDBTreeListManagerPhone: TcxDBTreeListColumn;
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cxDBTreeListManagerEmail: TcxDBTreeListColumn;
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cxEditRepository1: TcxEditRepository;
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eriTelephoneMaskEdit: TcxEditRepositoryMaskItem;
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cxDBTreeListManagerAdress: TcxDBTreeListColumn;
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imIndicatorImages: TImageList;
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Office111: TMenuItem;
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procedure FormCreate(Sender: TObject);
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procedure FormDestroy(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure LookAndFeelChange(Sender: TObject);
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procedure actCustomizationFormExecute(Sender: TObject);
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procedure cxDBTreeListInitInsertingRecord(Sender: TObject;
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AFocusedNode: TcxTreeListDataNode; var AHandled: Boolean);
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procedure cxDBTreeListCustomDrawBackground(Sender: TObject;
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ACanvas: TcxCanvas; const R: TRect; var ADone: Boolean);
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procedure cxDBTreeListCustomDrawBandHeader(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListHeaderViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawCellsGroup(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListCellsGroupViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawFooter(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListBandViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawFooterCell(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListFooterItemViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawHeaderCell(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListHeaderViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawIndentCell(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListIndentViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawIndicatorCell(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListIndicatorViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawPreview(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListEditCellViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawCell(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListEditCellViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListCustomDrawHeader(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxTreeListBandViewInfo;
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var ADone: Boolean);
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procedure cxDBTreeListDragOver(Sender, Source: TObject; X, Y: Integer;
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State: TDragState; var Accept: Boolean);
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private
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FCustomDrawInfo: TcxCustomDrawInfo;
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FTempCustomDrawItem: TcxItemCustomDrawInfo;
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function DrawCellItem(AItem: TcxItemCustomDrawInfo; ACanvas: TcxCanvas;
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AViewInfo: TcxTreeListEditCellViewInfo; Sender: TObject): Boolean;
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function DrawHeaderItem(AItem: TcxItemCustomDrawInfo; ACanvas: TcxCanvas;
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AViewInfo: TcxTreeListHeaderViewInfo; Sender: TObject): Boolean;
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function DrawItem(AItem: TcxItemCustomDrawInfo; ACanvas: TcxCanvas;
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const R: TRect): Boolean;
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function DrawItemOutside(ACanvas: TcxCanvas; const ABounds: TRect): Boolean;
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public
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property CustomDrawInfo: TcxCustomDrawInfo read FCustomDrawInfo;
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end;
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var
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CustomDrawDemoMainForm: TCustomDrawDemoMainForm;
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implementation
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uses CustomDrawDemoData, ShellAPI, DB, Dialogs, cxListBox, cxGeometry,
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cxLookAndFeelPainters, CustomDrawDemoEditor;
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{$R *.dfm}
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{ TcxCustomDrawInfo }
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destructor TcxCustomDrawInfo.Destroy;
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var
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I: Integer;
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begin
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for I := 0 to FCustomDrawData.Count - 1 do
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TcxItemCustomDrawInfo(FCustomDrawData[I]).Free;
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for I := 0 to FBitmaps.Count - 1 do
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TBitmap(FBitmaps[I]).Free;
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FCustomDrawData.Free;
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FBitmaps.Free;
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FDefaultFont.Free;
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end;
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constructor TcxCustomDrawInfo.Create;
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procedure LoadResourceBitmaps;
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var
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I: TBkImage;
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ABitmap: TBitmap;
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begin
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for I := Low(BkImageResNames) to High(BkImageResNames) do
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begin
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ABitmap := TBitmap.Create;
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LoadImageFromRes(ABitmap, BkImageResNames[I]);
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FBitmaps.Add(ABitmap);
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end;
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end;
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begin
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FBitmaps := TList.Create;
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LoadResourceBitmaps;
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FDefaultFont := TFont.Create;
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FCustomDrawData := TList.Create;
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FOwnerDrawText := True;
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end;
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procedure TcxCustomDrawInfo.AddNewItem(ADrawArea: TCustomDrawArea;
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AItemType: TcxItemCustomDrawType);
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begin
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FCustomDrawData.Add(TcxItemCustomDrawInfo.Create(Self, ADrawArea, AItemType));
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end;
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function TcxCustomDrawInfo.GetItemByIndex(
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AIndex: Integer): TcxItemCustomDrawInfo;
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begin
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Result := TcxItemCustomDrawInfo(FCustomDrawData[AIndex]);
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end;
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function TcxCustomDrawInfo.GetBkBitmap(ABkImage: TBkImage): TBitmap;
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begin
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Result := TBitmap(FBitmaps[Integer(ABkImage)]);
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end;
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function TcxCustomDrawInfo.GetCount: Integer;
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begin
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Result := FCustomDrawData.Count;
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end;
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function TcxCustomDrawInfo.GetItem(ADrawArea: TCustomDrawArea): TcxItemCustomDrawInfo;
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var
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I: Integer;
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begin
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Result := nil;
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for I := 0 to FCustomDrawData.Count - 1 do
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if TcxItemCustomDrawInfo(FCustomDrawData[I]).DrawArea = ADrawArea then
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begin
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Result := TcxItemCustomDrawInfo(FCustomDrawData[I]);
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Break;
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end;
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end;
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{ TcxItemCustomDrawInfo }
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constructor TcxItemCustomDrawInfo.Create(AOwner: TcxCustomDrawInfo;
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ADrawArea: TCustomDrawArea; AItemType: TcxItemCustomDrawType);
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begin
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FOwner := AOwner;
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FDrawArea := ADrawArea;
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FItemType := AItemType;
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if FOwner <> nil then
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FBitmap := AOwner.Bitmaps[TBkImage(0)]
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else
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FBitmap := nil;
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if FOwner <> nil then
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FFont := AOwner.DefaultFont
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else
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FBitmap := nil;
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FBkImageType := TBkImage(0);
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FDrawingStyle := TCustomDrawingStyle(0);
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FColorScheme := TColorScheme(0);
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FIsBitmapAssigned := False;
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FIsFontAssigned := False;
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FOwnerTextDraw := False;
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end;
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destructor TcxItemCustomDrawInfo.Destroy;
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begin
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if FIsBitmapAssigned then
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FBitmap.Free;
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if FIsFontAssigned then
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FFont.Free;
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inherited Destroy;
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end;
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function TcxItemCustomDrawInfo.GetBitmap: TBitmap;
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begin
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if ((FBkImageType <> bkiUserDefined) or not FIsBitmapAssigned) and
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(FOwner <> nil) then
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Result := FOwner.Bitmaps[FBkImageType]
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else
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Result := FBitmap;
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end;
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function TcxItemCustomDrawInfo.GetFont: TFont;
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begin
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Result := FFont;
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end;
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procedure TcxItemCustomDrawInfo.SetBitmap(const Value: TBitmap);
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begin
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if FIsBitmapAssigned then
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FBitmap.Free;
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FBitmap := Value;
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FIsBitmapAssigned := True;
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FBkImageType := bkiUserDefined;
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end;
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procedure TcxItemCustomDrawInfo.SetFont(const Value: TFont);
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begin
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if FIsFontAssigned then
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FFont.Free;
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FFont := Value;
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FIsFontAssigned := True;
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end;
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{TCustomDrawDemoMainForm}
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procedure TCustomDrawDemoMainForm.FormCreate(Sender: TObject);
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procedure AddCustomDrawInfos;
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begin
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FCustomDrawInfo.AddNewItem(cdaBackground, itNormal);
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FCustomDrawInfo.AddNewItem(cdaBandHeader, itText);
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FCustomDrawInfo.AddNewItem(cdaCell, itCell);
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FCustomDrawInfo.AddNewItem(cdaCellsGroup, itNormal);
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FCustomDrawInfo.AddNewItem(cdaFooter, itNormal);
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FCustomDrawInfo.AddNewItem(cdaFooterCell, itText);
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FCustomDrawInfo.AddNewItem(cdaHeader, itNormal);
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FCustomDrawInfo.AddNewItem(cdaHeaderCell, itText);
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FCustomDrawInfo.AddNewItem(cdaIndentCell, itNormal);
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FCustomDrawInfo.AddNewItem(cdaIndicatorCell, itNormal);
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FCustomDrawInfo.AddNewItem(cdaPreview, itCell);
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end;
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procedure AdjustCustomDrawItems;
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begin
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FCustomDrawInfo[cdaHeaderCell].DrawingStyle := cdsBkImage;
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FCustomDrawInfo[cdaBackground].BkImageType := bkiEgypt;
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FCustomDrawInfo[cdaIndentCell].BkImageType := bkiEgypt;
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FCustomDrawInfo[cdaFooter].BkImageType := bkiMyFace;
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FCustomDrawInfo[cdaFooterCell].BkImageType := bkiMyFace;
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FCustomDrawInfo[cdaPreview].BkImageType := bkiMyFace;
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FCustomDrawInfo[cdaHeaderCell].DrawingStyle := cdsGradient;
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FCustomDrawInfo[cdaBandHeader].DrawingStyle := cdsGradient;
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FCustomDrawInfo[cdaBandHeader].ColorScheme := csBlue;
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FCustomDrawInfo[cdaIndicatorCell].DrawingStyle := cdsGradient;
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end;
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begin
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FCustomDrawInfo := TcxCustomDrawInfo.Create;
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AddCustomDrawInfos;
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AdjustCustomDrawItems;
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end;
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procedure TCustomDrawDemoMainForm.FormDestroy(Sender: TObject);
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begin
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FCustomDrawInfo.Free;
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end;
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procedure TCustomDrawDemoMainForm.FormShow(Sender: TObject);
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begin
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cxDBTreeList.FullExpand;
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CustomDrawDemoEditorForm.Show;
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{ remove/add the closing brace on this line to disable/enable the following code
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ShowMessage('WARNING: tutorial not completed. First, please apply the steps '+
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'shown in the doc file');
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//}
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end;
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procedure TCustomDrawDemoMainForm.LookAndFeelChange(Sender: TObject);
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begin
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if TMenuItem(Sender).Tag > 3 then
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begin
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cxLookAndFeelController.NativeStyle :=
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not cxLookAndFeelController.NativeStyle;
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TMenuItem(Sender).Checked := cxLookAndFeelController.NativeStyle;
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end
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else
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begin
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TMenuItem(Sender).Checked := True;
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cxLookAndFeelController.Kind := TcxLookAndFeelKind(TMenuItem(Sender).Tag);
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cxLookAndFeelController.NativeStyle := False;
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miNativeStyle.Checked := False;
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end;
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end;
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procedure TCustomDrawDemoMainForm.actCustomizationFormExecute(Sender: TObject);
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begin
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CustomDrawDemoEditorForm.Show;
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListInitInsertingRecord(
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Sender: TObject; AFocusedNode: TcxTreeListDataNode;
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var AHandled: Boolean);
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begin
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if AFocusedNode <> nil then
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CustomDrawDemoDataDM.SetParentValue(AFocusedNode.ParentValue);
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawBackground(
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Sender: TObject; ACanvas: TcxCanvas; const R: TRect; var ADone: Boolean);
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begin
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{ remove/add the closing brace on this line to disable/enable the following code}
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ADone := DrawItem(FCustomDrawInfo[cdaBackground], ACanvas, R);
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//}
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawBandHeader(
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Sender: TObject; ACanvas: TcxCanvas;
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AViewInfo: TcxTreeListHeaderViewInfo; var ADone: Boolean);
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begin
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{ remove/add the closing brace on this line to disable/enable the following code}
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ADone := DrawHeaderItem(FCustomDrawInfo[cdaBandHeader], ACanvas, AViewInfo, Sender);
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//}
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawCell(
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Sender: TObject; ACanvas: TcxCanvas;
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AViewInfo: TcxTreeListEditCellViewInfo; var ADone: Boolean);
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begin
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{ remove/add the closing brace on this line to disable/enable the following code}
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ADone := DrawCellItem(FCustomDrawInfo[cdaCell], ACanvas, AViewInfo, Sender);
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//}
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawCellsGroup(
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Sender: TObject; ACanvas: TcxCanvas;
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AViewInfo: TcxTreeListCellsGroupViewInfo; var ADone: Boolean);
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begin
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{ remove/add the closing brace on this line to disable/enable the following code}
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if AViewInfo.Selected then Exit;
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ADone := DrawItem(FCustomDrawInfo[cdaCellsGroup], ACanvas, AViewInfo.VisibleRect);
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if not ADone then Exit;
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ACanvas.Pen.Color := TcxDBTreeList(Sender).OptionsView.GridLineColor;
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ACanvas.Brush.Style := bsClear;
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with AViewInfo.BoundsRect do
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ACanvas.Canvas.Rectangle(Left, Top, Right, Bottom);
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//}
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawFooter(
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Sender: TObject; ACanvas: TcxCanvas; AViewInfo: TcxTreeListBandViewInfo;
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var ADone: Boolean);
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begin
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{ remove/add the closing brace on this line to disable/enable the following code}
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ADone := DrawItem(FCustomDrawInfo[cdaFooter], ACanvas, AViewInfo.VisibleRect);
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//}
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawFooterCell(
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Sender: TObject; ACanvas: TcxCanvas;
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AViewInfo: TcxTreeListFooterItemViewInfo; var ADone: Boolean);
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var
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AItem: TcxItemCustomDrawInfo;
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begin
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{ remove/add the closing brace on this line to disable/enable the following code}
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AItem := FCustomDrawInfo[cdaFooterCell];
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if AItem.DrawingStyle = cdsDefaultDrawing then Exit;
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if AItem.OwnerTextDraw then
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begin
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ADone := DrawItem(AItem, ACanvas, AViewInfo.VisibleRect);
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AViewInfo.LookAndFeelPainter.DrawFooterCellBorder(ACanvas, AViewInfo.BoundsRect);
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ACanvas.Font := AItem.Font;
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ACanvas.Brush.Style := bsClear;
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ACanvas.DrawTexT(AViewInfo.Text, cxRectInflate(AViewInfo.BoundsRect, -2, -2),0);
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end
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else
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with AViewInfo do
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begin
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FTempCustomDrawItem := AItem;
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LookAndFeelPainter.DrawFooterCell(ACanvas, BoundsRect, AlignHorz, AlignVert,
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MultiLine, Text, ViewParams.Font, ViewParams.TextColor, ViewParams.Color,
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DrawItemOutside);
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ADone := True;
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end;
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//}
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end;
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procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawHeader(
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Sender: TObject; ACanvas: TcxCanvas; AViewInfo: TcxTreeListBandViewInfo;
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var ADone: Boolean);
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begin
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{ remove/add the closing brace on this line to disable/enable the following code}
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ADone := DrawItem(FCustomDrawInfo[cdaHeader], ACanvas, AViewInfo.VisibleRect);
|
|
|
|
//}
|
|
end;
|
|
|
|
procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawHeaderCell(
|
|
Sender: TObject; ACanvas: TcxCanvas;
|
|
AViewInfo: TcxTreeListHeaderViewInfo; var ADone: Boolean);
|
|
begin
|
|
{ remove/add the closing brace on this line to disable/enable the following code}
|
|
|
|
ADone := DrawHeaderItem(FCustomDrawInfo[cdaHeaderCell], ACanvas, AViewInfo, Sender);
|
|
|
|
//}
|
|
end;
|
|
|
|
procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawIndentCell(
|
|
Sender: TObject; ACanvas: TcxCanvas;
|
|
AViewInfo: TcxTreeListIndentViewInfo; var ADone: Boolean);
|
|
procedure DrawTreeLines;
|
|
begin
|
|
with AViewInfo do
|
|
begin
|
|
if [tltVertUp, tltVertDown] * TreeLines <> [] then
|
|
cxFillHalfToneRect(ACanvas.Canvas, VertTreeLine, ViewParams.Color,
|
|
TcxTreeList(Sender).OptionsView.TreeLineColor);
|
|
if tltHorz in TreeLines then
|
|
cxFillHalfToneRect(ACanvas.Canvas, HorzTreeLine, ViewParams.Color,
|
|
TcxTreeList(Sender).OptionsView.TreeLineColor);
|
|
end;
|
|
end;
|
|
procedure DrawRectWithBorders;
|
|
begin
|
|
ACanvas.Brush.Color := TcxTreeList(Sender).OptionsView.GridLineColor;
|
|
with AViewInfo, AViewInfo.BoundsRect do
|
|
begin
|
|
if bLeft in Borders then
|
|
ACanvas.FillRect(cxRect(Left, Top, Left + 1, Bottom));
|
|
if bRight in Borders then
|
|
ACanvas.FillRect(cxRect(Right - 1, Top, Right, Bottom));
|
|
if bTop in Borders then
|
|
ACanvas.FillRect(cxRect(Left, Top, Right, Top + 1));
|
|
if bBottom in Borders then
|
|
ACanvas.FillRect(cxRect(Left, Bottom - 1, Right, Bottom));
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
{ remove/add the closing brace on this line to disable/enable the following code}
|
|
|
|
ADone := DrawItem(FCustomDrawInfo[cdaIndentCell], ACanvas, AViewInfo.VisibleRect);
|
|
if not ADone then Exit;
|
|
with AViewInfo do
|
|
begin
|
|
DrawRectWithBorders;
|
|
DrawTreeLines;
|
|
if HasButton then
|
|
begin
|
|
DrawItem(FCustomDrawInfo[cdaIndentCell], ACanvas, ButtonRect);
|
|
ACanvas.Brush.Color := TcxTreeList(Sender).OptionsView.TreeLineColor;
|
|
LookAndFeelPainter.DrawSmallExpandButton(ACanvas, ButtonRect, IsExpanded, clBtnFace);
|
|
end;
|
|
end;
|
|
|
|
//}
|
|
end;
|
|
|
|
procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawIndicatorCell(
|
|
Sender: TObject; ACanvas: TcxCanvas;
|
|
AViewInfo: TcxTreeListIndicatorViewInfo; var ADone: Boolean);
|
|
begin
|
|
{ remove/add the closing brace on this line to disable/enable the following code}
|
|
|
|
FTempCustomDrawItem := FCustomDrawInfo[cdaIndicatorCell];
|
|
if FTempCustomDrawItem.DrawingStyle = cdsDefaultDrawing then Exit;
|
|
with AViewInfo do
|
|
LookAndFeelPainter.DrawIndicatorItemEx(ACanvas, BoundsRect, Kind, ViewParams.Color, DrawItemOutside);
|
|
ADone := True;
|
|
|
|
//}
|
|
end;
|
|
|
|
procedure TCustomDrawDemoMainForm.cxDBTreeListCustomDrawPreview(
|
|
Sender: TObject; ACanvas: TcxCanvas;
|
|
AViewInfo: TcxTreeListEditCellViewInfo; var ADone: Boolean);
|
|
begin
|
|
{ remove/add the closing brace on this line to disable/enable the following code}
|
|
|
|
ADone := DrawCellItem(FCustomDrawInfo[cdaPreview], ACanvas, AViewInfo, Sender);
|
|
|
|
//}
|
|
end;
|
|
|
|
function TCustomDrawDemoMainForm.DrawHeaderItem(
|
|
AItem: TcxItemCustomDrawInfo; ACanvas: TcxCanvas;
|
|
AViewInfo: TcxTreeListHeaderViewInfo; Sender: TObject): Boolean;
|
|
begin
|
|
{ remove/add the closing brace on this line to disable/enable the following code}
|
|
|
|
Result := False;
|
|
if AItem.DrawingStyle = cdsDefaultDrawing then Exit;
|
|
if AItem.OwnerTextDraw then
|
|
begin
|
|
Result := DrawItem(AItem, ACanvas, AViewInfo.VisibleRect);
|
|
AViewInfo.LookAndFeelPainter.DrawHeaderBorder(ACanvas,
|
|
cxRectInflate(AViewInfo.BoundsRect, -1, -1),
|
|
AViewInfo.Neighbors, AViewInfo.Borders);
|
|
ACanvas.Font := AItem.Font;
|
|
ACanvas.Brush.Style := bsClear;
|
|
ACanvas.DrawTexT(AViewInfo.Text, cxRectInflate(AViewInfo.TextBounds, -2, 0), cxAlignCenter);
|
|
end
|
|
else
|
|
begin
|
|
FTempCustomDrawItem := AItem;
|
|
with AViewInfo do
|
|
LookAndFeelPainter.DrawHeaderEx(ACanvas,
|
|
BoundsRect, TextBounds, Neighbors, Borders, State, AlignHorz, AlignVert,
|
|
MultiLine, ShowEndEllipsis, Text, ViewParams.Font, ViewParams.TextColor,
|
|
ViewParams.Color, DrawItemOutside);
|
|
Result := True;
|
|
end;
|
|
if AViewInfo is TcxTreeListColumnHeaderViewInfo then
|
|
with TcxTreeListColumnHeaderViewInfo(AViewInfo) do
|
|
if SortOrder <> soNone then
|
|
TcxDBTreeList(Sender).LookAndFeel.Painter.DrawSortingMark(ACanvas,
|
|
SortMarkBounds, SortOrder = soAscending);
|
|
if AViewInfo.State = cxbsPressed then
|
|
AViewInfo.LookAndFeelPainter.DrawHeaderPressed(ACanvas, AViewInfo.BoundsRect);
|
|
|
|
//}
|
|
end;
|
|
|
|
function TCustomDrawDemoMainForm.DrawItem(AItem: TcxItemCustomDrawInfo;
|
|
ACanvas: TcxCanvas; const R: TRect): Boolean;
|
|
begin
|
|
{ remove/add the closing brace on this line to disable/enable the following code}
|
|
|
|
case AItem.DrawingStyle of
|
|
cdsBkImage:
|
|
ACanvas.FillRect(R, AItem.Bitmap);
|
|
cdsGradient:
|
|
DrawGradient(ACanvas.Canvas, R,
|
|
ColorScheme[Integer(AItem.ColorScheme), 1],
|
|
ColorScheme[Integer(AItem.ColorScheme), 0], 40,
|
|
Integer(AItem.ColorScheme) > 1);
|
|
end;
|
|
Result := (AItem.DrawingStyle <> cdsDefaultDrawing);
|
|
|
|
//}
|
|
end;
|
|
|
|
function TCustomDrawDemoMainForm.DrawItemOutside(ACanvas: TcxCanvas;
|
|
const ABounds: TRect): Boolean;
|
|
begin
|
|
DrawItem(FTempCustomDrawItem, ACanvas, ABounds);
|
|
Result := True;
|
|
end;
|
|
|
|
function TCustomDrawDemoMainForm.DrawCellItem(AItem: TcxItemCustomDrawInfo;
|
|
ACanvas: TcxCanvas; AViewInfo: TcxTreeListEditCellViewInfo;
|
|
Sender: TObject): Boolean;
|
|
procedure OwnerDrawText(ALinesColor: TColor; AFont: TFont);
|
|
var
|
|
ARect: TRect;
|
|
begin
|
|
ACanvas.Pen.Color := ALinesColor;
|
|
ACanvas.Brush.Style := bsClear;
|
|
ACanvas.Font := AFont;
|
|
ARect := cxRectInflate(AViewInfo.BoundsRect, 0, 1, 0, 0);
|
|
with ARect do
|
|
ACanvas.Canvas.Rectangle(Left, Top, Right, Bottom);
|
|
if AViewInfo.EditViewInfo is TcxCustomCheckBoxViewInfo then
|
|
with TcxCustomCheckBoxViewInfo(AViewInfo.EditViewInfo) do
|
|
AViewInfo.LookAndFeelPainterClass.DrawCheckButton(ACanvas,
|
|
cxRectOffset(CheckBoxRect, AViewInfo.BoundsRect.Left, AViewInfo.BoundsRect.Top),
|
|
cxbsDefault, State = cbsChecked)
|
|
else
|
|
if AViewInfo.EditViewInfo is TcxCustomTextEditViewInfo then
|
|
with TcxCustomTextEditViewInfo(AViewInfo.EditViewInfo) do
|
|
ACanvas.DrawTexT(Text, cxRectInflate(AViewInfo.BoundsRect, -2, -2), 0);
|
|
end;
|
|
var
|
|
AStyle: TcxStyle;
|
|
begin
|
|
{ remove/add the closing brace on this line to disable/enable the following code}
|
|
|
|
Result := False;
|
|
AViewInfo.Transparent := (AViewInfo.ViewParams.Bitmap <> nil) and
|
|
(not AViewInfo.ViewParams.Bitmap.Empty);
|
|
if AViewInfo.Selected then Exit;
|
|
if AItem.DrawingStyle = cdsDefaultDrawing then Exit;
|
|
if AItem.DrawingStyle = cdsDependsOnData then
|
|
with CustomDrawDemoDataDM do
|
|
begin
|
|
if AViewInfo.Node.Values[cxDBTreeListVACANCY.ItemIndex] then
|
|
AStyle := styVacancy
|
|
else
|
|
AStyle := styNoVacancy;
|
|
ACanvas.Brush.Color := AStyle.Color;
|
|
ACanvas.FillRect(AViewInfo.VisibleRect);
|
|
OwnerDrawText(AStyle.TextColor, AStyle.Font);
|
|
Result := True;
|
|
end
|
|
else
|
|
begin
|
|
Result := DrawItem(AItem, ACanvas, AViewInfo.VisibleRect);
|
|
if AItem.OwnerTextDraw then
|
|
OwnerDrawText(TcxTreeList(Sender).OptionsView.GridLineColor, AItem.Font)
|
|
else
|
|
begin
|
|
AViewInfo.Transparent := True;
|
|
Result := False;
|
|
end;
|
|
end;
|
|
|
|
//}
|
|
end;
|
|
|
|
procedure TCustomDrawDemoMainForm.cxDBTreeListDragOver(Sender,
|
|
Source: TObject; X, Y: Integer; State: TDragState; var Accept: Boolean);
|
|
begin
|
|
inherited;
|
|
//
|
|
end;
|
|
|
|
end.
|
|
|