让禁用的菜单和工具栏图像看起来更好?

发布于 2024-11-07 09:49:43 字数 665 浏览 6 评论 0原文

请参阅随附的屏幕截图,其中说明了我的一个程序中的 TToolBar:

在此处输入图像描述

注意最后两张图像工具栏,它们被禁用。它们被绘制为禁用的方式并不是很吸引人,事实上在 Delphi IDE 中,一些图像看起来是一样的。

我遇到的问题是我希望我的应用程序看起来更干净。禁用项目的绘制方式看起来不太好。 TToolBar 允许设置禁用的 TImageList,我尝试将图像设为黑色和白色。白色,但它们看起来不正确,并且宁愿不必总是将图像设为黑白(时间和精力)。这个问题也出现在我的菜单和弹出菜单中,无论如何它们都不允许禁用图像。

有没有办法对禁用的项目进行涂漆,使其看起来更好看?

如果可能的话,我宁愿不使用第三方控件。我知道 Jedi 组件允许禁用菜单等图像,但更喜欢一种不诉诸第三方组件的方法,如果可能的话,我更喜欢使用标准问题 VCL,特别是有时我使用 TActionMainMenuBar 来绘制 Office 风格菜单,当 DrawingStyle 设置为渐变时,它与 TToolBar 匹配。

编辑

我已经接受了 RRUZ 的答案,是否也可以接受 David 的答案,两者都是非常好的答案,如果可能的话,希望在他们之间共享答案。

谢谢。

Please see the attached screenshot which illustrates a TToolBar from one of my programs:

enter image description here

Notice the last two images of the Toolbar, they are disabled. The way they have been drawn to appear disabled is not very appealing, in fact in the Delphi IDE some of the images look the same.

The issue I have with it is I want my application to look a lot cleaner. The way the disabled items are drawn doesn't look very good. The TToolBar allows to set a disabled TImageList, I tried making my images black & white but they didn't look right, and would rather not have to always make the images black and white (time and effort). This problem also shows in my menus and popup menus, which don't allow for disabled images anyway.

Is there a way to paint the disabled items to look better on the eye?

If possible I would rather not look to use 3rd Party Controls. I know the Jedi Components allow disabled images for the menu etc, but would prefer a way to not resort too 3rd Party Components, when possible I would much prefer to use the standard issue VCL, especially as sometimes I use the TActionMainMenuBar to draw Office Style menus, which match the TToolBar when DrawingStyle is set to gradient.

EDIT

I have accepted RRUZ's answer, is it possible though to accept David's answer as well, both are very good answers and would like the answer to be shared between them if possible.

Thanks.

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烟酉 2024-11-14 09:49:43

前段时间我写了一个补丁来解决这个问题。关键是修补 TCustomImageList.DoDraw< 的代码/a> 函数,所使用的技术类似于 delphi-nice-toolbar 应用程序,但在本例中我们不是修补 bpl IDE,而是修补内存中的函数。

只需将此单元包含在您的项目中

unit uCustomImageDrawHook;

interface

uses
  Windows,
  SysUtils,
  Graphics,
  ImgList,
  CommCtrl,
  Math;

implementation

type
  TJumpOfs = Integer;
  PPointer = ^Pointer;

  PXRedirCode = ^TXRedirCode;
  TXRedirCode = packed record
    Jump: Byte;
    Offset: TJumpOfs;
  end;

  PAbsoluteIndirectJmp = ^TAbsoluteIndirectJmp;
  TAbsoluteIndirectJmp = packed record
    OpCode: Word;
    Addr: PPointer;
  end;


  TCustomImageListHack = class(TCustomImageList);

var
  DoDrawBackup   : TXRedirCode;

function GetActualAddr(Proc: Pointer): Pointer;
begin
  if Proc <> nil then
  begin
    if (Win32Platform = VER_PLATFORM_WIN32_NT) and (PAbsoluteIndirectJmp(Proc).OpCode = $25FF) then
      Result := PAbsoluteIndirectJmp(Proc).Addr^
    else
      Result := Proc;
  end
  else
    Result := nil;
end;

procedure HookProc(Proc, Dest: Pointer; var BackupCode: TXRedirCode);
var
  n: DWORD;
  Code: TXRedirCode;
begin
  Proc := GetActualAddr(Proc);
  Assert(Proc <> nil);
  if ReadProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n) then
  begin
    Code.Jump := $E9;
    Code.Offset := PAnsiChar(Dest) - PAnsiChar(Proc) - SizeOf(Code);
    WriteProcessMemory(GetCurrentProcess, Proc, @Code, SizeOf(Code), n);
  end;
end;

procedure UnhookProc(Proc: Pointer; var BackupCode: TXRedirCode);
var
  n: Cardinal;
begin
  if (BackupCode.Jump <> 0) and (Proc <> nil) then
  begin
    Proc := GetActualAddr(Proc);
    Assert(Proc <> nil);
    WriteProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n);
    BackupCode.Jump := 0;
  end;
end;


procedure Bitmap2GrayScale(const BitMap: TBitmap);
type
  TRGBArray = array[0..32767] of TRGBTriple;
  PRGBArray = ^TRGBArray;
var
  x, y, Gray: Integer;
  Row       : PRGBArray;
begin
  BitMap.PixelFormat := pf24Bit;
  for y := 0 to BitMap.Height - 1 do
  begin
    Row := BitMap.ScanLine[y];
    for x := 0 to BitMap.Width - 1 do
    begin
      Gray             := (Row[x].rgbtRed + Row[x].rgbtGreen + Row[x].rgbtBlue) div 3;
      Row[x].rgbtRed   := Gray;
      Row[x].rgbtGreen := Gray;
      Row[x].rgbtBlue  := Gray;
    end;
  end;
end;


//from ImgList.GetRGBColor
function GetRGBColor(Value: TColor): DWORD;
begin
  Result := ColorToRGB(Value);
  case Result of
    clNone:
      Result := CLR_NONE;
    clDefault:
      Result := CLR_DEFAULT;
  end;
end;


procedure New_Draw(Self: TObject; Index: Integer; Canvas: TCanvas; X, Y: Integer; Style: Cardinal; Enabled: Boolean);
var
  MaskBitMap : TBitmap;
  GrayBitMap : TBitmap;
begin
  with TCustomImageListHack(Self) do
  begin
    if not HandleAllocated then Exit;
    if Enabled then
      ImageList_DrawEx(Handle, Index, Canvas.Handle, X, Y, 0, 0, GetRGBColor(BkColor), GetRGBColor(BlendColor), Style)
    else
    begin
      GrayBitMap := TBitmap.Create;
      MaskBitMap := TBitmap.Create;
      try
        GrayBitMap.SetSize(Width, Height);
        MaskBitMap.SetSize(Width, Height);
        GetImages(Index, GrayBitMap, MaskBitMap);
        Bitmap2GrayScale(GrayBitMap);
        BitBlt(Canvas.Handle, X, Y, Width, Height, MaskBitMap.Canvas.Handle, 0, 0, SRCERASE);
        BitBlt(Canvas.Handle, X, Y, Width, Height, GrayBitMap.Canvas.Handle, 0, 0, SRCINVERT);
      finally
        GrayBitMap.Free;
        MaskBitMap.Free;
      end;
    end;
  end;
end;

procedure HookDraw;
begin
  HookProc(@TCustomImageListHack.DoDraw, @New_Draw, DoDrawBackup);
end;

procedure UnHookDraw;
begin
  UnhookProc(@TCustomImageListHack.DoDraw, DoDrawBackup);
end;


initialization
 HookDraw;
finalization
 UnHookDraw;
end.

,结果将是

在此处输入图像描述

Sometime Ago i wrote a patch to fix this behavior. the key is patch the code of the TCustomImageList.DoDraw function, the technique used is similar to the used by the delphi-nice-toolbar app, but instead of patch a bpl IDE in this case we patch the function in memory.

Just include this unit in your project

unit uCustomImageDrawHook;

interface

uses
  Windows,
  SysUtils,
  Graphics,
  ImgList,
  CommCtrl,
  Math;

implementation

type
  TJumpOfs = Integer;
  PPointer = ^Pointer;

  PXRedirCode = ^TXRedirCode;
  TXRedirCode = packed record
    Jump: Byte;
    Offset: TJumpOfs;
  end;

  PAbsoluteIndirectJmp = ^TAbsoluteIndirectJmp;
  TAbsoluteIndirectJmp = packed record
    OpCode: Word;
    Addr: PPointer;
  end;


  TCustomImageListHack = class(TCustomImageList);

var
  DoDrawBackup   : TXRedirCode;

function GetActualAddr(Proc: Pointer): Pointer;
begin
  if Proc <> nil then
  begin
    if (Win32Platform = VER_PLATFORM_WIN32_NT) and (PAbsoluteIndirectJmp(Proc).OpCode = $25FF) then
      Result := PAbsoluteIndirectJmp(Proc).Addr^
    else
      Result := Proc;
  end
  else
    Result := nil;
end;

procedure HookProc(Proc, Dest: Pointer; var BackupCode: TXRedirCode);
var
  n: DWORD;
  Code: TXRedirCode;
begin
  Proc := GetActualAddr(Proc);
  Assert(Proc <> nil);
  if ReadProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n) then
  begin
    Code.Jump := $E9;
    Code.Offset := PAnsiChar(Dest) - PAnsiChar(Proc) - SizeOf(Code);
    WriteProcessMemory(GetCurrentProcess, Proc, @Code, SizeOf(Code), n);
  end;
end;

procedure UnhookProc(Proc: Pointer; var BackupCode: TXRedirCode);
var
  n: Cardinal;
begin
  if (BackupCode.Jump <> 0) and (Proc <> nil) then
  begin
    Proc := GetActualAddr(Proc);
    Assert(Proc <> nil);
    WriteProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n);
    BackupCode.Jump := 0;
  end;
end;


procedure Bitmap2GrayScale(const BitMap: TBitmap);
type
  TRGBArray = array[0..32767] of TRGBTriple;
  PRGBArray = ^TRGBArray;
var
  x, y, Gray: Integer;
  Row       : PRGBArray;
begin
  BitMap.PixelFormat := pf24Bit;
  for y := 0 to BitMap.Height - 1 do
  begin
    Row := BitMap.ScanLine[y];
    for x := 0 to BitMap.Width - 1 do
    begin
      Gray             := (Row[x].rgbtRed + Row[x].rgbtGreen + Row[x].rgbtBlue) div 3;
      Row[x].rgbtRed   := Gray;
      Row[x].rgbtGreen := Gray;
      Row[x].rgbtBlue  := Gray;
    end;
  end;
end;


//from ImgList.GetRGBColor
function GetRGBColor(Value: TColor): DWORD;
begin
  Result := ColorToRGB(Value);
  case Result of
    clNone:
      Result := CLR_NONE;
    clDefault:
      Result := CLR_DEFAULT;
  end;
end;


procedure New_Draw(Self: TObject; Index: Integer; Canvas: TCanvas; X, Y: Integer; Style: Cardinal; Enabled: Boolean);
var
  MaskBitMap : TBitmap;
  GrayBitMap : TBitmap;
begin
  with TCustomImageListHack(Self) do
  begin
    if not HandleAllocated then Exit;
    if Enabled then
      ImageList_DrawEx(Handle, Index, Canvas.Handle, X, Y, 0, 0, GetRGBColor(BkColor), GetRGBColor(BlendColor), Style)
    else
    begin
      GrayBitMap := TBitmap.Create;
      MaskBitMap := TBitmap.Create;
      try
        GrayBitMap.SetSize(Width, Height);
        MaskBitMap.SetSize(Width, Height);
        GetImages(Index, GrayBitMap, MaskBitMap);
        Bitmap2GrayScale(GrayBitMap);
        BitBlt(Canvas.Handle, X, Y, Width, Height, MaskBitMap.Canvas.Handle, 0, 0, SRCERASE);
        BitBlt(Canvas.Handle, X, Y, Width, Height, GrayBitMap.Canvas.Handle, 0, 0, SRCINVERT);
      finally
        GrayBitMap.Free;
        MaskBitMap.Free;
      end;
    end;
  end;
end;

procedure HookDraw;
begin
  HookProc(@TCustomImageListHack.DoDraw, @New_Draw, DoDrawBackup);
end;

procedure UnHookDraw;
begin
  UnhookProc(@TCustomImageListHack.DoDraw, DoDrawBackup);
end;


initialization
 HookDraw;
finalization
 UnHookDraw;
end.

and the result will be

enter image description here

嗫嚅 2024-11-14 09:49:43

我一年多前针对相关问题提交了质量控制报告,但是那是菜单用的。我从未在 TToolbar 中看到过这种情况,因为它是公共控件的包装器,并且绘图是由 Windows 处理的。

然而,您看到的图像显然是 VCL 调用 TImageList.Draw 并传递 Enabled=False 的结果 - 没有其他看起来那么糟糕!您 100% 确定这确实是 TToolbar 吗?

修复方法肯定是避免 TImageList.Draw 并使用 ILS_SATURATE 调用 ImageList_DrawIndirect

您可能需要修改一些VCL源代码。首先找到自定义绘制工具栏的位置,然后调用此例程而不是调用 TImageList.Draw

procedure DrawDisabledImage(DC: HDC; ImageList: TCustomImageList; Index, X, Y: Integer);
var
  Options: TImageListDrawParams;
begin
  ZeroMemory(@Options, SizeOf(Options));
  Options.cbSize := SizeOf(Options);
  Options.himl := ImageList.Handle;
  Options.i := Index;
  Options.hdcDst := DC;
  Options.x := X;
  Options.y := Y;
  Options.fState := ILS_SATURATE;
  ImageList_DrawIndirect(@Options);
end;

更好的解决方法是找出为什么要自定义绘制工具栏,并找到一种方法让系统执行此操作。


编辑1

我查看了Delphi源代码,我猜测您正在自定义绘制工具栏,也许是因为它有渐变。我从来不知道 TToolbar 可以处理自定义绘图,但我只是一个普通的人!

无论如何,我可以在 TToolBar.GradientDrawButton 中看到调用 TImageList.Draw 的代码,所以我认为上面的解释是正确的。

我相当确定调用上面的 DrawDisabledImage 函数会给您带来更好的结果。如果在调用 TImageList.Draw 时能够找到一种方法来实现这一点,那么我认为这将是最好的解决方案,因为它将适用于批发。

编辑2

将上面的函数与@RRUZ的答案结合起来,你就有了一个很好的解决方案。

I submitted a QC report for a related issue over a year ago, but that was for menus. I've never seen this for TToolbar since it is a wrapper to the common control and the drawing is handled by Windows.

However, the images you are seeing are clearly as result of the VCL calling TImageList.Draw and passing Enabled=False – nothing else looks that bad! Are you 100% sure this really is a TToolbar?

The fix will surely be to avoid TImageList.Draw and call ImageList_DrawIndirect with the ILS_SATURATE.

You may need to modify some VCL source. First find the location where the toolbar is being custom drawn and call this routine instead of the calls to TImageList.Draw.

procedure DrawDisabledImage(DC: HDC; ImageList: TCustomImageList; Index, X, Y: Integer);
var
  Options: TImageListDrawParams;
begin
  ZeroMemory(@Options, SizeOf(Options));
  Options.cbSize := SizeOf(Options);
  Options.himl := ImageList.Handle;
  Options.i := Index;
  Options.hdcDst := DC;
  Options.x := X;
  Options.y := Y;
  Options.fState := ILS_SATURATE;
  ImageList_DrawIndirect(@Options);
end;

An even better fix would be to work out why the toolbar is being custom drawn and find a way to let the system do it.


EDIT 1

I've looked at the Delphi source code and I'd guess that you are custom drawing the toolbar, perhaps because it has a gradient. I never even knew that TToolbar could handle custom drawing but I'm just a plain vanilla kind of guy!

Anyway, I can see code in TToolBar.GradientDrawButton calling the TImageList.Draw so I think the explanation above is on the right track.

I'm fairly sure that calling my DrawDisabledImage function above will give you better results. If could find a way to make that happen when you call TImageList.Draw then that would, I suppose, be the very best fix since it would apply wholesale.

EDIT 2

Combine the function above with @RRUZ's answer and you have an excellent solution.

泼猴你往哪里跑 2024-11-14 09:49:43

如果您在 ActionToolBar 中使用 LargeImages,@RRUZ 的解决方案将不起作用。我对 @RRUZ 代码进行了更改,以便在 ActionToolBar 中使用 LargeImages。

unit unCustomImageDrawHook;

interface

uses
  Windows,
  SysUtils,
  Graphics,
  ImgList,
  CommCtrl,
  Math,
  Vcl.ActnMan,
  System.Classes;

implementation

type
  TJumpOfs = Integer;
  PPointer = ^Pointer;

  PXRedirCode = ^TXRedirCode;
  TXRedirCode = packed record
    Jump: Byte;
    Offset: TJumpOfs;
  end;

  PAbsoluteIndirectJmp = ^TAbsoluteIndirectJmp;
  TAbsoluteIndirectJmp = packed record
    OpCode: Word;
    Addr: PPointer;
  end;


  TCustomImageListHack = class(TCustomImageList);
  TCustomActionControlHook = class(TCustomActionControl);

var
  DoDrawBackup   : TXRedirCode;
  DoDrawBackup2   : TXRedirCode;  

function GetActualAddr(Proc: Pointer): Pointer;
begin
  if Proc <> nil then
  begin
    if (Win32Platform = VER_PLATFORM_WIN32_NT) and (PAbsoluteIndirectJmp(Proc).OpCode = $25FF) then
      Result := PAbsoluteIndirectJmp(Proc).Addr^
    else
      Result := Proc;
  end
  else
    Result := nil;
end;

procedure HookProc(Proc, Dest: Pointer; var BackupCode: TXRedirCode);
var
  n: SIZE_T;
  Code: TXRedirCode;
begin
  Proc := GetActualAddr(Proc);
  Assert(Proc <> nil);
  if ReadProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n) then
  begin
    Code.Jump := $E9;
    Code.Offset := PAnsiChar(Dest) - PAnsiChar(Proc) - SizeOf(Code);
    WriteProcessMemory(GetCurrentProcess, Proc, @Code, SizeOf(Code), n);
  end;
end;

procedure UnhookProc(Proc: Pointer; var BackupCode: TXRedirCode);
var
  n: SIZE_T;
begin
  if (BackupCode.Jump <> 0) and (Proc <> nil) then
  begin
    Proc := GetActualAddr(Proc);
    Assert(Proc <> nil);
    WriteProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n);
    BackupCode.Jump := 0;
  end;
end;

procedure Bitmap2GrayScale(const BitMap: TBitmap);
type
  TRGBArray = array[0..32767] of TRGBTriple;
  PRGBArray = ^TRGBArray;
var
  x, y, Gray: Integer;
  Row       : PRGBArray;
begin
  BitMap.PixelFormat := pf24Bit;
  for y := 0 to BitMap.Height - 1 do
  begin
    Row := BitMap.ScanLine[y];
    for x := 0 to BitMap.Width - 1 do
    begin
      Gray             := (Row[x].rgbtRed + Row[x].rgbtGreen + Row[x].rgbtBlue) div 3;
      Row[x].rgbtRed   := Gray;
      Row[x].rgbtGreen := Gray;
      Row[x].rgbtBlue  := Gray;
    end;
  end;
end;


//from ImgList.GetRGBColor
function GetRGBColor(Value: TColor): DWORD;
begin
  Result := ColorToRGB(Value);
  case Result of
    clNone:
      Result := CLR_NONE;
    clDefault:
      Result := CLR_DEFAULT;
  end;
end;


procedure New_Draw(Self: TObject; Index: Integer; Canvas: TCanvas; X, Y: Integer; Style: Cardinal; Enabled: Boolean);
var
  MaskBitMap : TBitmap;
  GrayBitMap : TBitmap;
begin
  with TCustomImageListHack(Self) do
  begin
    if not HandleAllocated then Exit;
    if Enabled then
      ImageList_DrawEx(Handle, Index, Canvas.Handle, X, Y, 0, 0, GetRGBColor(BkColor), GetRGBColor(BlendColor), Style)
    else
    begin
      GrayBitMap := TBitmap.Create;
      MaskBitMap := TBitmap.Create;
      try
        GrayBitMap.SetSize(Width, Height);
        MaskBitMap.SetSize(Width, Height);
        GetImages(Index, GrayBitMap, MaskBitMap);
        Bitmap2GrayScale(GrayBitMap);
        BitBlt(Canvas.Handle, X, Y, Width, Height, MaskBitMap.Canvas.Handle, 0, 0, SRCERASE);
        BitBlt(Canvas.Handle, X, Y, Width, Height, GrayBitMap.Canvas.Handle, 0, 0, SRCINVERT);
      finally
        GrayBitMap.Free;
        MaskBitMap.Free;
      end;
    end;
  end;
end;


procedure New_Draw2(Self: TObject; const Location: TPoint);
var
  ImageList: TCustomImageList;
  DrawEnabled: Boolean;
  LDisabled: Boolean;
begin
  with TCustomActionControlHook(Self) do
  begin
    if not HasGlyph then Exit;
    ImageList := FindImageList(True, LDisabled, ActionClient.ImageIndex);
    if not Assigned(ImageList) then Exit;
    DrawEnabled := LDisabled or Enabled and (ActionClient.ImageIndex <> -1) or
      (csDesigning in ComponentState);
    ImageList.Draw(Canvas, Location.X, Location.Y, ActionClient.ImageIndex,
      dsTransparent, itImage, DrawEnabled);
  end;
end;


procedure HookDraw;
begin
  HookProc(@TCustomImageListHack.DoDraw, @New_Draw, DoDrawBackup);
  HookProc(@TCustomActionControlHook.DrawLargeGlyph, @New_Draw2, DoDrawBackup2);
end;

procedure UnHookDraw;
begin
  UnhookProc(@TCustomImageListHack.DoDraw, DoDrawBackup);
  UnhookProc(@TCustomActionControlHook.DrawLargeGlyph, DoDrawBackup2);
end;


initialization
  HookDraw;
finalization
  UnHookDraw;
end.

Solution from @RRUZ dosn't work if you use LargeImages in ActionToolBar. I made changes to the @RRUZ code to work with LargeImages in ActionToolBar.

unit unCustomImageDrawHook;

interface

uses
  Windows,
  SysUtils,
  Graphics,
  ImgList,
  CommCtrl,
  Math,
  Vcl.ActnMan,
  System.Classes;

implementation

type
  TJumpOfs = Integer;
  PPointer = ^Pointer;

  PXRedirCode = ^TXRedirCode;
  TXRedirCode = packed record
    Jump: Byte;
    Offset: TJumpOfs;
  end;

  PAbsoluteIndirectJmp = ^TAbsoluteIndirectJmp;
  TAbsoluteIndirectJmp = packed record
    OpCode: Word;
    Addr: PPointer;
  end;


  TCustomImageListHack = class(TCustomImageList);
  TCustomActionControlHook = class(TCustomActionControl);

var
  DoDrawBackup   : TXRedirCode;
  DoDrawBackup2   : TXRedirCode;  

function GetActualAddr(Proc: Pointer): Pointer;
begin
  if Proc <> nil then
  begin
    if (Win32Platform = VER_PLATFORM_WIN32_NT) and (PAbsoluteIndirectJmp(Proc).OpCode = $25FF) then
      Result := PAbsoluteIndirectJmp(Proc).Addr^
    else
      Result := Proc;
  end
  else
    Result := nil;
end;

procedure HookProc(Proc, Dest: Pointer; var BackupCode: TXRedirCode);
var
  n: SIZE_T;
  Code: TXRedirCode;
begin
  Proc := GetActualAddr(Proc);
  Assert(Proc <> nil);
  if ReadProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n) then
  begin
    Code.Jump := $E9;
    Code.Offset := PAnsiChar(Dest) - PAnsiChar(Proc) - SizeOf(Code);
    WriteProcessMemory(GetCurrentProcess, Proc, @Code, SizeOf(Code), n);
  end;
end;

procedure UnhookProc(Proc: Pointer; var BackupCode: TXRedirCode);
var
  n: SIZE_T;
begin
  if (BackupCode.Jump <> 0) and (Proc <> nil) then
  begin
    Proc := GetActualAddr(Proc);
    Assert(Proc <> nil);
    WriteProcessMemory(GetCurrentProcess, Proc, @BackupCode, SizeOf(BackupCode), n);
    BackupCode.Jump := 0;
  end;
end;

procedure Bitmap2GrayScale(const BitMap: TBitmap);
type
  TRGBArray = array[0..32767] of TRGBTriple;
  PRGBArray = ^TRGBArray;
var
  x, y, Gray: Integer;
  Row       : PRGBArray;
begin
  BitMap.PixelFormat := pf24Bit;
  for y := 0 to BitMap.Height - 1 do
  begin
    Row := BitMap.ScanLine[y];
    for x := 0 to BitMap.Width - 1 do
    begin
      Gray             := (Row[x].rgbtRed + Row[x].rgbtGreen + Row[x].rgbtBlue) div 3;
      Row[x].rgbtRed   := Gray;
      Row[x].rgbtGreen := Gray;
      Row[x].rgbtBlue  := Gray;
    end;
  end;
end;


//from ImgList.GetRGBColor
function GetRGBColor(Value: TColor): DWORD;
begin
  Result := ColorToRGB(Value);
  case Result of
    clNone:
      Result := CLR_NONE;
    clDefault:
      Result := CLR_DEFAULT;
  end;
end;


procedure New_Draw(Self: TObject; Index: Integer; Canvas: TCanvas; X, Y: Integer; Style: Cardinal; Enabled: Boolean);
var
  MaskBitMap : TBitmap;
  GrayBitMap : TBitmap;
begin
  with TCustomImageListHack(Self) do
  begin
    if not HandleAllocated then Exit;
    if Enabled then
      ImageList_DrawEx(Handle, Index, Canvas.Handle, X, Y, 0, 0, GetRGBColor(BkColor), GetRGBColor(BlendColor), Style)
    else
    begin
      GrayBitMap := TBitmap.Create;
      MaskBitMap := TBitmap.Create;
      try
        GrayBitMap.SetSize(Width, Height);
        MaskBitMap.SetSize(Width, Height);
        GetImages(Index, GrayBitMap, MaskBitMap);
        Bitmap2GrayScale(GrayBitMap);
        BitBlt(Canvas.Handle, X, Y, Width, Height, MaskBitMap.Canvas.Handle, 0, 0, SRCERASE);
        BitBlt(Canvas.Handle, X, Y, Width, Height, GrayBitMap.Canvas.Handle, 0, 0, SRCINVERT);
      finally
        GrayBitMap.Free;
        MaskBitMap.Free;
      end;
    end;
  end;
end;


procedure New_Draw2(Self: TObject; const Location: TPoint);
var
  ImageList: TCustomImageList;
  DrawEnabled: Boolean;
  LDisabled: Boolean;
begin
  with TCustomActionControlHook(Self) do
  begin
    if not HasGlyph then Exit;
    ImageList := FindImageList(True, LDisabled, ActionClient.ImageIndex);
    if not Assigned(ImageList) then Exit;
    DrawEnabled := LDisabled or Enabled and (ActionClient.ImageIndex <> -1) or
      (csDesigning in ComponentState);
    ImageList.Draw(Canvas, Location.X, Location.Y, ActionClient.ImageIndex,
      dsTransparent, itImage, DrawEnabled);
  end;
end;


procedure HookDraw;
begin
  HookProc(@TCustomImageListHack.DoDraw, @New_Draw, DoDrawBackup);
  HookProc(@TCustomActionControlHook.DrawLargeGlyph, @New_Draw2, DoDrawBackup2);
end;

procedure UnHookDraw;
begin
  UnhookProc(@TCustomImageListHack.DoDraw, DoDrawBackup);
  UnhookProc(@TCustomActionControlHook.DrawLargeGlyph, DoDrawBackup2);
end;


initialization
  HookDraw;
finalization
  UnHookDraw;
end.
尴尬癌患者 2024-11-14 09:49:43

查看此 Delphi IDE 修复。也许你可以模仿它的实现。

Take a look at this Delphi IDE fix. Maybe you can mimic it's implementation.

つ可否回来 2024-11-14 09:49:43

使用 TActionToolbar , TActionmanager , Timagelist

将操作管理器图像列表设置为 Timagelist。并将Disabledimages设置为另一个图像列表

Use TActionToolbar , TActionmanager , Timagelist

Set action managers image list to a Timagelist. and set Disabledimages to another imagelist

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