You've already forked lazarus-ccr
jvcllaz: Cosmetic changes in JvThumbnails.
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@6280 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
@ -103,38 +103,33 @@ type
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PercentDone: Byte; RedrawNow: Boolean;
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const R: TRect; const Msg: string);
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*******************************)
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procedure GetFileInfo(AName: string);
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function GetFileName: string;
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function GetTitleBevelInner: TPanelBevel;
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function GetTitleBevelOuter: TPanelBevel;
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function GetTitleBorderStyle: TBorderStyle;
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function IsTitleFontStored: Boolean;
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procedure RefreshFont(Sender: TObject);
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procedure SetFileName(const AFile: string);
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function LoadFile(AFile: string): string;
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function GetFileName: string;
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procedure CalculateImageSize; virtual;
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procedure SetDummyStr(AStr: string);
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procedure SetMinimizeMemory(Min: Boolean);
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procedure SetDummyCard(AInt: Longint);
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procedure SetDummyStr(AStr: string);
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procedure SetFileName(const AFile: string);
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procedure SetMargin(AValue: Integer);
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procedure SetMinimizeMemory(Min: Boolean);
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//procedure SetShadowColor(aColor: TColor);
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procedure SetShowShadow(AShow: Boolean);
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procedure SetStream(const AStream: TStream);
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procedure SetShowTitle(const AState: Boolean);
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procedure SetTitlePlacement(const AState: TTitlePos);
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procedure SetTitle(const Value: string);
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procedure SetTitleBevelInner(const Value: TPanelBevel);
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procedure SetTitleBevelOuter(const Value: TPanelBevel);
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procedure SetTitleBorderStyle(const Value: TBorderStyle);
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procedure SetTitleColor(const Value: TColor);
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procedure SetStream(const AStream: TStream);
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procedure SetTitleFont(const Value: TFont);
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procedure GetFileInfo(AName: string);
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procedure SetShowShadow(AShow: Boolean);
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procedure SetMargin(AValue: Integer);
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// procedure SetShadowColor(aColor: TColor);
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procedure UpdateThumbHeight;
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procedure UpdateThumbWidth;
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procedure UpdateTitlePanelHeight;
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function IsTitleFontStored: Boolean;
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procedure WMPaint(var Msg: TLMPaint); message LM_PAINT;
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procedure SetTitlePlacement(const AState: TTitlePos);
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protected
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procedure BoundsChanged; override;
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procedure CalculateImageSize; virtual;
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procedure CreateHandle; override;
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procedure THSizeChanged(var Msg: TLMessage); message TH_IMAGESIZECHANGED;
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procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
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@ -142,40 +137,45 @@ type
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procedure MouseMove(Shift: TShiftState; X, Y: Integer); override;
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procedure MouseUp(Button: TMouseButton; Shift: TShiftState;
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X, Y: Integer); override;
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procedure BoundsChanged; override;
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function LoadFile(AFile: string): string;
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procedure UpdateThumbHeight;
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procedure UpdateThumbWidth;
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procedure UpdateTitlePanelHeight;
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procedure WMPaint(var Msg: TLMPaint); message LM_PAINT;
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public
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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procedure SetTitlePanel(ATitle: string; AFont: TFont; AColor: TColor);
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procedure Refresh;
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property ImageHeight: Longint read FImageHeight default 0;
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property ImageReady: Boolean read FImageReady;
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property ImageWidth: Longint read FImageWidth default 0;
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property Stream: TStream read FStream write SetStream;
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property Photo: TJvThumbImage read FPhoto write FPhoto;
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published
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property AutoLoad: Boolean read FAutoLoad write FAutoLoad default true;
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property AsButton: Boolean read FAsButton write FAsButton default false;
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property FileName: string read GetFileName write SetFileName;
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property Margin: Integer read FMargin write SetMargin default 8;
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property MinimizeMemory: Boolean read FMinimizeMemory write SetMinimizeMemory default true;
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property ShadowColor: TColor read FShadowColor write FShadowColor;
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property ShowShadow: Boolean read FShowShadow write SetShowShadow default false;
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property ShowTitle: Boolean read FShowTitle write SetShowTitle default true;
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property StreamFileType: TGRFKind read FStreamFileKind write FStreamFileKind default grBMP;
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property Title: string read FTitle write SetTitle;
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property TitleBevelInner: TPanelBevel read GetTitleBevelInner write SetTitleBevelInner default bvNone;
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property TitleBevelOuter: TPanelBevel read GetTitleBevelOuter write SetTitleBevelOuter default bvLowered;
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property TitleBorderStyle: TBorderStyle read GetTitleBorderStyle write SetTitleBorderStyle default bsNone;
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property TitleColor: TColor read FTitleColor write SetTitleColor default clDefault;
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property TitleFont: TFont read FTitleFont write SetTitleFont stored IsTitleFontStored;
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property ImageReady: Boolean read FImageReady;
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property TitlePlacement: TTitlePos read FTitlePlacement write SetTitlePlacement default tpUp;
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property OnGetTitle: TTitleNotify read FOnGetTitle write FOnGetTitle;
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{ Do not store dummies }
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property FileSize: Longint read FDFileSize write SetDummyCard stored False;
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property FileAccessed: string read FDFileAccessed write SetDummyStr stored False;
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property FileCreated: string read FDFileCreated write SetDummyStr stored False;
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property FileChanged: string read FDFileChanged write SetDummyStr stored False;
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property ImageWidth: Longint read FImageWidth default 0;
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property ImageHeight: Longint read FImageHeight default 0;
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property AsButton: Boolean read FAsButton write FAsButton default false;
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property Margin: Integer read FMargin write SetMargin default 8;
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property MinimizeMemory: Boolean read FMinimizeMemory write SetMinimizeMemory default true;
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property StreamFileType: TGRFKind read FStreamFileKind write FStreamFileKind default grBMP;
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property ShowTitle: Boolean read FShowTitle write SetShowTitle default true;
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property TitlePlacement: TTitlePos read FTitlePlacement write SetTitlePlacement default tpUp;
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property AutoLoad: Boolean read FAutoLoad write FAutoLoad default true;
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property ShadowColor: TColor read FShadowColor write FShadowColor;
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property ShowShadow: Boolean read FShowShadow write SetShowShadow default false;
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end;
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@ -268,51 +268,49 @@ begin
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inherited Destroy;
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end;
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function TJvThumbnail.GetTitleBevelInner: TPanelBevel;
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begin
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Result := FTitlePanel.BevelInner;
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end;
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function TJvThumbnail.GetTitleBevelOuter: TPanelBevel;
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begin
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Result := FTitlePanel.BevelOuter;
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end;
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function TJvThumbnail.GetTitleBorderStyle: TBorderStyle;
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begin
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Result := FTitlePanel.BorderStyle;
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end;
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procedure TJvThumbnail.SetShowTitle(const AState: Boolean);
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begin
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if AState <> FShowTitle then
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begin
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FShowTitle := AState;
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FTitlePanel.Visible := AState;
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end
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end;
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procedure TJvThumbnail.SetTitleBevelInner(const Value: TPanelBevel);
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begin
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FTitlePanel.BevelInner := Value;
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end;
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procedure TJvThumbnail.SetTitleBevelOuter(const Value: TPanelBevel);
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begin
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FTitlePanel.BevelOuter := Value;
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end;
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procedure TJvThumbnail.SetTitleBorderStyle(const Value: TBorderStyle);
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begin
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FTitlePanel.BorderStyle := Value;
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end;
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procedure TJvThumbnail.BoundsChanged;
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begin
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CalculateImageSize;
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inherited BoundsChanged;
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end;
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procedure TJvThumbnail.CalculateImageSize;
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var
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Percent: Byte;
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TempX, TempY: Single;
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begin
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if (Photo = nil) or (Photo.Picture = nil) then
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exit;
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UpdateThumbHeight;
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UpdateThumbWidth;
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if (Photo.Picture.Width > FThumbWidth) or (Photo.Picture.Height > FThumbHeight) then
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begin
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TempX := (FThumbWidth / Photo.Picture.Width) * 100;
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TempY := (FThumbHeight / Photo.Picture.Height) * 100;
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end
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else
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begin
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TempX := 100;
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TempY := 100;
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end;
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if TempX <= TempY then
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Percent := Trunc(TempX)
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else
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Percent := Trunc(TempY);
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Photo.Width := Trunc((Photo.Picture.Width / 100) * Percent);
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Photo.Height := Trunc((Photo.Picture.Height / 100) * Percent);
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Photo.Left := Trunc(Width / 2 - Photo.Width / 2);
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Photo.Top := (Height div 2) - (Photo.Height div 2);
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case FTitlePlacement of
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tpUp:
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Photo.Top := Photo.Top + (FTitlePanel.Height div 2);
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tpDown:
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Photo.Top := Photo.Top - (FTitlePanel.Height div 2);
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end;
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FShadowObj.SetBounds(Photo.Left + FHShadowOffset, Photo.Top + FVShadowOffset,
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Photo.Width, Photo.Height);
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end;
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procedure TJvThumbnail.CreateHandle;
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begin
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inherited;
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@ -321,167 +319,6 @@ begin
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UpdateTitlePanelHeight;
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end;
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function TJvThumbnail.IsTitleFontStored: Boolean;
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begin
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Result := not FTitleFont.IsDefault;
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end;
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procedure TJvThumbnail.UpdateTitlePanelHeight;
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var
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fd: TFontData;
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begin
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fd := GetFontData(FTitleFont.Handle);
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Canvas.Font.Name := fd.Name;
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Canvas.Font.Style := fd.Style;
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Canvas.Font.Height := fd.Height;
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FTitlePanel.Height := Canvas.TextHeight('Tg') + 4;
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CalculateImageSize;
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end;
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procedure TJvThumbnail.SetStream(const AStream: TStream);
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var
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Bmp: Graphics.TBitmap;
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Size: TPoint;
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Img2: TJPEGImage;
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begin
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case StreamFileType of
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grBMP:
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Photo.Picture.Bitmap.LoadFromStream(AStream);
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(********* NOT CONVERTED ***
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grEMF, grWMF:
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Photo.Picture.Metafile.LoadFromStream(AStream);
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*************************)
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grJPG:
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begin
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Img2 := TJPEGImage.Create;
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Img2.LoadFromStream(AStream);
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Photo.Picture.Assign(Img2);
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FreeAndNil(Img2);
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end;
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end;
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if FMinimizeMemory then
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begin
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Bmp := Graphics.TBitmap.Create;
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if Parent is TJvThumbView then
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Size := ProportionalSize(Point(Photo.Picture.Width, Photo.Picture.Height),
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Point(TJvThumbView(Parent).MaxWidth, TJvThumbView(Parent).MaxHeight))
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else
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Size := ProportionalSize(Point(Photo.Picture.Width, Photo.Picture.Height),
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Point(Width, Height));
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Bmp.Width := Size.X;
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Bmp.Height := Size.Y;
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Bmp.handletype := bmDIB;
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Bmp.pixelformat := pf24bit;
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Bmp.Canvas.StretchDraw(rect(0, 0, Bmp.Width, Bmp.Height),
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Photo.Picture.Graphic);
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//Photo.Picture.Graphic.Free; // (rom) not needed
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//Photo.Picture.Graphic := nil;
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Photo.Picture.Assign(Bmp);
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Bmp.Free;
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end;
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end;
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procedure TJvThumbnail.UpdateThumbWidth;
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begin
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FThumbWidth := ClientWidth - 2 * FMargin;
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end;
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procedure TJvThumbnail.UpdateThumbHeight;
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begin
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if Assigned(FTitlePanel) and FTitlePanel.Visible then
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FThumbHeight := ClientHeight - FTitlePanel.Height - FMargin
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else
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FThumbHeight := ClientHeight - FMargin;
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end;
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// dummy property functions to allow the object inspector to
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// show the properties and their values
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procedure TJvThumbnail.SetDummyStr(AStr: string);
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begin
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end;
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procedure TJvThumbnail.SetDummyCard(AInt: Longint);
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begin
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end;
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(********** NOT CONVERTED ***
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procedure TJvThumbnail.PhotoOnProgress(Sender: TObject; Stage: TProgressStage;
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PercentDone: Byte; RedrawNow: Boolean; const R: TRect; const Msg: string);
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begin
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FImageReady := (Stage = psEnding);
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end;
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***************************)
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procedure TJvThumbnail.MouseDown(Button: TMouseButton; Shift: TShiftState;
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X, Y: Integer);
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begin
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if AsButton then
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if Button = mbLeft then
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begin
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FMousePressed := True;
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BevelOuter := bvLowered;
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FTitlePanel.BevelOuter := bvRaised;
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end;
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inherited MouseDown(Button, Shift, X, Y);
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end;
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procedure TJvThumbnail.SetShowShadow(AShow: Boolean);
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begin
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FShadowObj.Visible := AShow;
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FShowShadow := AShow;
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end;
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procedure TJvThumbnail.SetMargin(AValue: Integer);
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begin
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if AValue <> FMargin then begin
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FMargin := AValue;
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CalculateImageSize;
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// UpdateThumbWidth;
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// UpdateThumbHeight;
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Invalidate;
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end;
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end;
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{procedure TJvThumbnail.SetShadowColor(aColor: TColor);
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begin
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FShadowObj.Brush.Color := aColor;
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FShadowColor := aColor;
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end;}
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procedure TJvThumbnail.MouseMove(Shift: TShiftState; X, Y: Integer);
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begin
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if AsButton then
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if FMousePressed then
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begin
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if (X < 0) or (X > Width) or (Y < 0) or (Y > Height) then
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begin
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BevelOuter := bvRaised;
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FTitlePanel.BevelOuter := bvLowered
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end
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else
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begin
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BevelOuter := bvLowered;
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FTitlePanel.BevelOuter := bvRaised;
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end;
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end;
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inherited MouseMove(Shift, X, Y);
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end;
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procedure TJvThumbnail.MouseUp(Button: TMouseButton; Shift: TShiftState;
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X, Y: Integer);
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begin
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if AsButton then
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if Button = mbLeft then
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begin
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FMousePressed := False;
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BevelOuter := bvRaised;
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FTitlePanel.BevelOuter := bvLowered;
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end;
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inherited MouseUp(Button, Shift, X, Y);
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end;
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procedure TJvThumbnail.GetFileInfo(AName: String);
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var
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FileInfo: TSearchRec;
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@ -534,6 +371,26 @@ begin
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Result := FPhotoName.FileName;
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end;
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function TJvThumbnail.GetTitleBevelInner: TPanelBevel;
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begin
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Result := FTitlePanel.BevelInner;
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end;
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function TJvThumbnail.GetTitleBevelOuter: TPanelBevel;
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begin
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Result := FTitlePanel.BevelOuter;
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end;
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function TJvThumbnail.GetTitleBorderStyle: TBorderStyle;
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begin
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Result := FTitlePanel.BorderStyle;
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end;
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function TJvThumbnail.IsTitleFontStored: Boolean;
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begin
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Result := not FTitleFont.IsDefault;
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end;
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function TJvThumbnail.LoadFile(AFile: string): string;
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var
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FName: string;
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@ -560,6 +417,81 @@ begin
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Result := FName;
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end;
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procedure TJvThumbnail.MouseDown(Button: TMouseButton; Shift: TShiftState;
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X, Y: Integer);
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begin
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if AsButton then
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if Button = mbLeft then
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begin
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FMousePressed := True;
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BevelOuter := bvLowered;
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FTitlePanel.BevelOuter := bvRaised;
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end;
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inherited MouseDown(Button, Shift, X, Y);
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end;
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|
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procedure TJvThumbnail.MouseMove(Shift: TShiftState; X, Y: Integer);
|
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begin
|
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if AsButton then
|
||||
if FMousePressed then
|
||||
begin
|
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if (X < 0) or (X > Width) or (Y < 0) or (Y > Height) then
|
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begin
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BevelOuter := bvRaised;
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FTitlePanel.BevelOuter := bvLowered
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end
|
||||
else
|
||||
begin
|
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BevelOuter := bvLowered;
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FTitlePanel.BevelOuter := bvRaised;
|
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end;
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||||
end;
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inherited MouseMove(Shift, X, Y);
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||||
end;
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||||
|
||||
procedure TJvThumbnail.MouseUp(Button: TMouseButton; Shift: TShiftState;
|
||||
X, Y: Integer);
|
||||
begin
|
||||
if AsButton then
|
||||
if Button = mbLeft then
|
||||
begin
|
||||
FMousePressed := False;
|
||||
BevelOuter := bvRaised;
|
||||
FTitlePanel.BevelOuter := bvLowered;
|
||||
end;
|
||||
inherited MouseUp(Button, Shift, X, Y);
|
||||
end;
|
||||
|
||||
(********** NOT CONVERTED ***
|
||||
procedure TJvThumbnail.PhotoOnProgress(Sender: TObject; Stage: TProgressStage;
|
||||
PercentDone: Byte; RedrawNow: Boolean; const R: TRect; const Msg: string);
|
||||
begin
|
||||
FImageReady := (Stage = psEnding);
|
||||
end;
|
||||
***************************)
|
||||
|
||||
procedure TJvThumbnail.Refresh;
|
||||
begin
|
||||
CalculateImageSize;
|
||||
inherited Refresh;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.RefreshFont(Sender: TObject);
|
||||
begin
|
||||
FTitlePanel.Font.Assign(FTitleFont);
|
||||
UpdateTitlePanelHeight;
|
||||
end;
|
||||
|
||||
// dummy property functions to allow the object inspector to
|
||||
// show the properties and their values
|
||||
procedure TJvThumbnail.SetDummyStr(AStr: string);
|
||||
begin
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetDummyCard(AInt: Longint);
|
||||
begin
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetFileName(const AFile: string);
|
||||
var
|
||||
FName: string;
|
||||
@ -581,41 +513,103 @@ begin
|
||||
FPhotoName.FileName := FName;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.CalculateImageSize;
|
||||
var
|
||||
Percent: Byte;
|
||||
TempX, TempY: Single;
|
||||
procedure TJvThumbnail.SetMargin(AValue: Integer);
|
||||
begin
|
||||
if (Photo = nil) or (Photo.Picture = nil) then
|
||||
exit;
|
||||
UpdateThumbHeight;
|
||||
UpdateThumbWidth;
|
||||
if (Photo.Picture.Width > FThumbWidth) or (Photo.Picture.Height > FThumbHeight) then
|
||||
if AValue <> FMargin then begin
|
||||
FMargin := AValue;
|
||||
CalculateImageSize;
|
||||
// UpdateThumbWidth;
|
||||
// UpdateThumbHeight;
|
||||
Invalidate;
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetMinimizeMemory(Min: Boolean);
|
||||
begin
|
||||
if Assigned(Photo.Picture.Graphic) then
|
||||
begin
|
||||
TempX := (FThumbWidth / Photo.Picture.Width) * 100;
|
||||
TempY := (FThumbHeight / Photo.Picture.Height) * 100;
|
||||
if FMinimizeMemory <> Min then
|
||||
begin
|
||||
if Min then
|
||||
begin
|
||||
if Owner is TJvThumbView then
|
||||
Photo.ScaleDown(TJvThumbView(Owner).MaxWidth, TJvThumbView(Owner).MaxHeight)
|
||||
else
|
||||
Photo.ScaleDown(Width, Height);
|
||||
end
|
||||
else
|
||||
begin
|
||||
TempX := 100;
|
||||
TempY := 100;
|
||||
if FMinimizeMemory then
|
||||
Photo.Picture.LoadFromFile(FileName);
|
||||
FMinimizeMemory := Min;
|
||||
end;
|
||||
if TempX <= TempY then
|
||||
Percent := Trunc(TempX)
|
||||
end
|
||||
else
|
||||
Percent := Trunc(TempY);
|
||||
Photo.Width := Trunc((Photo.Picture.Width / 100) * Percent);
|
||||
Photo.Height := Trunc((Photo.Picture.Height / 100) * Percent);
|
||||
Photo.Left := Trunc(Width / 2 - Photo.Width / 2);
|
||||
Photo.Top := (Height div 2) - (Photo.Height div 2);
|
||||
case FTitlePlacement of
|
||||
tpUp:
|
||||
Photo.Top := Photo.Top + (FTitlePanel.Height div 2);
|
||||
tpDown:
|
||||
Photo.Top := Photo.Top - (FTitlePanel.Height div 2);
|
||||
FMinimizeMemory := Min;
|
||||
end;
|
||||
|
||||
{procedure TJvThumbnail.SetShadowColor(aColor: TColor);
|
||||
begin
|
||||
FShadowObj.Brush.Color := aColor;
|
||||
FShadowColor := aColor;
|
||||
end;}
|
||||
|
||||
procedure TJvThumbnail.SetShowShadow(AShow: Boolean);
|
||||
begin
|
||||
FShadowObj.Visible := AShow;
|
||||
FShowShadow := AShow;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetShowTitle(const AState: Boolean);
|
||||
begin
|
||||
if AState <> FShowTitle then
|
||||
begin
|
||||
FShowTitle := AState;
|
||||
FTitlePanel.Visible := AState;
|
||||
end
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetStream(const AStream: TStream);
|
||||
var
|
||||
Bmp: Graphics.TBitmap;
|
||||
Size: TPoint;
|
||||
Img2: TJPEGImage;
|
||||
begin
|
||||
case StreamFileType of
|
||||
grBMP:
|
||||
Photo.Picture.Bitmap.LoadFromStream(AStream);
|
||||
(********* NOT CONVERTED ***
|
||||
grEMF, grWMF:
|
||||
Photo.Picture.Metafile.LoadFromStream(AStream);
|
||||
*************************)
|
||||
grJPG:
|
||||
begin
|
||||
Img2 := TJPEGImage.Create;
|
||||
Img2.LoadFromStream(AStream);
|
||||
Photo.Picture.Assign(Img2);
|
||||
FreeAndNil(Img2);
|
||||
end;
|
||||
end;
|
||||
|
||||
if FMinimizeMemory then
|
||||
begin
|
||||
Bmp := Graphics.TBitmap.Create;
|
||||
if Parent is TJvThumbView then
|
||||
Size := ProportionalSize(Point(Photo.Picture.Width, Photo.Picture.Height),
|
||||
Point(TJvThumbView(Parent).MaxWidth, TJvThumbView(Parent).MaxHeight))
|
||||
else
|
||||
Size := ProportionalSize(Point(Photo.Picture.Width, Photo.Picture.Height),
|
||||
Point(Width, Height));
|
||||
Bmp.Width := Size.X;
|
||||
Bmp.Height := Size.Y;
|
||||
Bmp.handletype := bmDIB;
|
||||
Bmp.pixelformat := pf24bit;
|
||||
Bmp.Canvas.StretchDraw(rect(0, 0, Bmp.Width, Bmp.Height),
|
||||
Photo.Picture.Graphic);
|
||||
//Photo.Picture.Graphic.Free; // (rom) not needed
|
||||
//Photo.Picture.Graphic := nil;
|
||||
Photo.Picture.Assign(Bmp);
|
||||
Bmp.Free;
|
||||
end;
|
||||
FShadowObj.SetBounds(Photo.Left + FHShadowOffset, Photo.Top + FVShadowOffset,
|
||||
Photo.Width, Photo.Height);
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.THSizeChanged(var Msg: TLMessage);
|
||||
@ -632,28 +626,19 @@ begin
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.WMPaint(var Msg: TLMPaint);
|
||||
var
|
||||
ThumbnailTitle: string;
|
||||
procedure TJvThumbnail.SetTitleBevelInner(const Value: TPanelBevel);
|
||||
begin
|
||||
if not FUpdated then
|
||||
begin
|
||||
ThumbnailTitle := Title;
|
||||
if Assigned(FOnGetTitle) then
|
||||
begin
|
||||
FOnGetTitle(Self, FileName, ThumbnailTitle);
|
||||
SetTitle(ThumbnailTitle);
|
||||
end
|
||||
else
|
||||
begin
|
||||
if ThumbnailTitle = '' then
|
||||
SetTitle(ExtractFileName(FileName))
|
||||
else
|
||||
SetTitle(ThumbnailTitle);
|
||||
end;
|
||||
FUpdated := True;
|
||||
end;
|
||||
inherited;
|
||||
FTitlePanel.BevelInner := Value;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetTitleBevelOuter(const Value: TPanelBevel);
|
||||
begin
|
||||
FTitlePanel.BevelOuter := Value;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetTitleBorderStyle(const Value: TBorderStyle);
|
||||
begin
|
||||
FTitlePanel.BorderStyle := Value;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetTitleColor(const Value: TColor);
|
||||
@ -670,12 +655,6 @@ begin
|
||||
FTitleFont.Assign(Value);
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.RefreshFont(Sender: TObject);
|
||||
begin
|
||||
FTitlePanel.Font.Assign(FTitleFont);
|
||||
UpdateTitlePanelHeight;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetTitlePanel(ATitle: string; AFont: TFont;
|
||||
AColor: TColor);
|
||||
begin
|
||||
@ -702,33 +681,53 @@ begin
|
||||
CalculateImageSize;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.SetMinimizeMemory(Min: Boolean);
|
||||
procedure TJvThumbnail.UpdateThumbHeight;
|
||||
begin
|
||||
if Assigned(Photo.Picture.Graphic) then
|
||||
begin
|
||||
if FMinimizeMemory <> Min then
|
||||
begin
|
||||
if Min then
|
||||
begin
|
||||
if Owner is TJvThumbView then
|
||||
Photo.ScaleDown(TJvThumbView(Owner).MaxWidth, TJvThumbView(Owner).MaxHeight)
|
||||
if Assigned(FTitlePanel) and FTitlePanel.Visible then
|
||||
FThumbHeight := ClientHeight - FTitlePanel.Height - FMargin
|
||||
else
|
||||
Photo.ScaleDown(Width, Height);
|
||||
end
|
||||
else
|
||||
if FMinimizeMemory then
|
||||
Photo.Picture.LoadFromFile(FileName);
|
||||
FMinimizeMemory := Min;
|
||||
end;
|
||||
end
|
||||
else
|
||||
FMinimizeMemory := Min;
|
||||
FThumbHeight := ClientHeight - FMargin;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.Refresh;
|
||||
procedure TJvThumbnail.UpdateThumbWidth;
|
||||
begin
|
||||
FThumbWidth := ClientWidth - 2 * FMargin;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.UpdateTitlePanelHeight;
|
||||
var
|
||||
fd: TFontData;
|
||||
begin
|
||||
fd := GetFontData(FTitleFont.Handle);
|
||||
Canvas.Font.Name := fd.Name;
|
||||
Canvas.Font.Style := fd.Style;
|
||||
Canvas.Font.Height := fd.Height;
|
||||
FTitlePanel.Height := Canvas.TextHeight('Tg') + 4;
|
||||
CalculateImageSize;
|
||||
inherited Refresh;
|
||||
end;
|
||||
|
||||
procedure TJvThumbnail.WMPaint(var Msg: TLMPaint);
|
||||
var
|
||||
ThumbnailTitle: string;
|
||||
begin
|
||||
if not FUpdated then
|
||||
begin
|
||||
ThumbnailTitle := Title;
|
||||
if Assigned(FOnGetTitle) then
|
||||
begin
|
||||
FOnGetTitle(Self, FileName, ThumbnailTitle);
|
||||
SetTitle(ThumbnailTitle);
|
||||
end
|
||||
else
|
||||
begin
|
||||
if ThumbnailTitle = '' then
|
||||
SetTitle(ExtractFileName(FileName))
|
||||
else
|
||||
SetTitle(ThumbnailTitle);
|
||||
end;
|
||||
FUpdated := True;
|
||||
end;
|
||||
inherited;
|
||||
end;
|
||||
|
||||
end.
|
||||
|
||||
Reference in New Issue
Block a user