Fixed #65: Caption for StyledBitBtn with wordwrap

Author: carloBarazzetta

source/Vcl.ButtonStylesAttributes.pas

@@ -1607,6 +1607,8 @@ procedure CalcImageAndTextRect(const ASurfaceRect: TRect;
   IW, IH, IX, IY: Integer;
   LImageAlignment: TImageAlignment;
 begin
+  //Calculate Image and Text Rect for Drawing using ImageAlignment and ImageMargins
+  //for StyledButton and StyledGraphicButton
   if ACaption = '' then
     LImageAlignment := iaCenter
   else
@@ -1722,6 +1724,8 @@ procedure CalcImageAndTextRect(const ACanvas: TCanvas;
   LLayout: TButtonLayout;
   LMargin, LSpacing: Integer;
 begin
+  //Calculate Image and Text Rect for Drawing using ButtonLayout, Margin and Spacing
+  //For StyledSpeedButton and StyledBitBtn
   LLayout := ALayout;
   if (ABiDiFlags and DT_RIGHT) = DT_RIGHT then
   begin
@@ -1835,7 +1839,8 @@ procedure CalcImageAndTextRect(const ACanvas: TCanvas;
   Inc(AGlyphPos.X, ASurfaceRect.Left + AOffset.X);
   Inc(AGlyphPos.Y, ASurfaceRect.Top + AOffset.Y);
 
-  OffsetRect(ATextBounds, LTextPos.X + ASurfaceRect.Left + AOffset.X, LTextPos.Y + ASurfaceRect.Top + AOffset.Y);
+  OffsetRect(ATextBounds, LTextPos.X + ASurfaceRect.Left + AOffset.X,
+    LTextPos.Y + ASurfaceRect.Top + AOffset.Y);
 end;
 
 procedure DrawIconFromCommandLinkRes(ACanvas: TCanvas; ARect: TRect;
@@ -2044,7 +2049,7 @@ procedure DrawButtonText(const ACanvas: TCanvas;
   const PreserveBorders: Boolean = True);
 var
   R: TRect;
-  OldBKMode: Integer;
+  LOldBKMode: Integer;
 begin
 (* for test
   ACanvas.Brush.Color := clYellow;
@@ -2065,7 +2070,7 @@ procedure DrawButtonText(const ACanvas: TCanvas;
   else
     OffsetRect(R, (ARect.Width - R.Width) div 2, (ARect.Height - R.Height) div 2);
   end;
-  OldBKMode := SetBkMode(ACanvas.Handle, Winapi.Windows.TRANSPARENT);
+  LOldBKMode := SetBkMode(ACanvas.Handle, Winapi.Windows.TRANSPARENT);
   try
     if PreserveBorders then
     begin
@@ -2075,13 +2080,13 @@ procedure DrawButtonText(const ACanvas: TCanvas;
           R.Top := ARect.Top + ABorderWidth + ASpacing ;
         if R.Bottom > ARect.Bottom - ABorderWidth - Aspacing then
           R.Bottom := ARect.Bottom - ABorderWidth - Aspacing;
-      (* for test
-      ACanvas.Brush.Color := clRed;
-      ACanvas.FillRect(R);
-      ACanvas.Pen.Color := clBlue;
-      ACanvas.Pen.Width := 1;
-      ACanvas.Rectangle(R);
-      *)
+        (* for test
+        ACanvas.Brush.Color := clRed;
+        ACanvas.FillRect(R);
+        ACanvas.Pen.Color := clBlue;
+        ACanvas.Pen.Width := 1;
+        ACanvas.Rectangle(R);
+        *)
         Winapi.Windows.DrawText(ACanvas.Handle, PChar(AText),
           Length(AText), R, ABidiFlags or DT_END_ELLIPSIS);
       end
@@ -2097,7 +2102,7 @@ procedure DrawButtonText(const ACanvas: TCanvas;
         Length(AText), R, ABidiFlags);
     end;
   finally
-    SetBkMode(ACanvas.Handle, OldBKMode);
+    SetBkMode(ACanvas.Handle, LOldBKMode);
   end;
 end;
 

source/Vcl.StyledButton.pas

@@ -1506,7 +1506,7 @@   TStyledBitBtn = class(TCustomStyledButton)
     property ModalResult;
     property NotificationBadge;
     property NumGlyphs;
-    property Style: TButtonStyle read FStyle write FStyle;
+    property Style: TButtonStyle read FStyle write FStyle default bsAutoDetect;
     property Spacing default 4;
     property TabOrder;
     property TabStop;
@@ -2654,6 +2654,7 @@ procedure TStyledButtonRender.DrawCaptionAndImage(const ACanvas: TCanvas;
   LUseImageList: Boolean;
   LGlyphPos: TPoint;
   LCaption: TCaption;
+  LOldBKMode, LMaxBorderWidth: Integer;
 begin
   if FShowCaption then
     LCaption := GetCaptionToDraw
@@ -2785,8 +2786,24 @@ procedure TStyledButtonRender.DrawCaptionAndImage(const ACanvas: TCanvas;
     end;
   end
   else
-    DrawButtonText(ACanvas, LCaption, FCaptionAlignment, FSpacing, CalcMaxBorderWidth,
-      LTextRect, LTextFlags);
+  begin
+    LMaxBorderWidth := CalcMaxBorderWidth;
+    if FUseButtonLayout then
+    begin
+      LOldBKMode := SetBkMode(ACanvas.Handle, Winapi.Windows.TRANSPARENT);
+      try
+        Winapi.Windows.DrawText(ACanvas.Handle, PChar(LCaption),
+          Length(LCaption), LTextRect, LTextFlags or DT_END_ELLIPSIS);
+      finally
+        SetBkMode(ACanvas.Handle, LOldBKMode);
+      end;
+    end
+    else
+    begin
+      DrawButtonText(ACanvas, LCaption, FCaptionAlignment, FSpacing, LMaxBorderWidth,
+        LTextRect, LTextFlags);
+    end;
+  end;
 end;
 
 procedure TStyledButtonRender.DrawButton(const ACanvas: TCanvas;
@@ -6311,6 +6328,7 @@ procedure TCustomStyledButton.WMPaint(var Message: TMessage);
 constructor TStyledBitBtn.Create(AOwner: TComponent);
 begin
   inherited Create(AOwner);
+  FStyle := bsAutoDetect;
   FRender.FUseButtonLayout := True;
   FRender.Spacing := 4;
 end;