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gtk3: fixed images on buttons. Patch by Anton Kavalenka.

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git-svn-id: trunk@62166 -
This commit is contained in:
zeljko 2019-11-03 15:14:27 +00:00
parent a0ad23f644
commit fb966c9408
1 changed files with 35 additions and 6 deletions
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41
lcl/interfaces/gtk3/gtk3wsbuttons.pp
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@ -72,7 +72,7 @@ type
implementation
uses
LResources, gtk3objects, gtk3procs;
graphtype,imglist,LResources, gtk3objects, gtk3procs;
{ TGtk3WSCustomBitBtn }
@ -115,17 +115,46 @@ class procedure TGtk3WSBitBtn.SetGlyph(const ABitBtn: TCustomBitBtn;
const AValue: TButtonGlyph);
var
AImage: PGtkImage;
AGlyph: TBitmap;
resolution:TCustomImageListResolution;
ScaleFactor: Double;
raw:TRawImage;
begin
{$IFDEF GTK3DEBUGCORE}
DebugLn('TGtk3WSBitBtn.SetGlyph');
{$ENDIF}
if not WSCheckHandleAllocated(ABitBtn, 'SetGlyph') then
Exit;
if ABitBtn.CanShowGlyph then
AImage := gtk_image_new_from_pixbuf(TGtk3Image(ABitBtn.Glyph.Handle).Handle)
else
AImage := nil;
gtk_button_set_image(PGtkButton(TGtk3Button(ABitBtn.Handle).Widget), AImage);
if ABitBtn.CanShowGlyph(True) then
begin
{ allocate image which would be cached in TGtk3Button instance }
AGlyph := TBitmap.Create;
ScaleFactor := ABitBtn.GetCanvasScaleFactor;
if (ABitBtn.ImageIndex>=0) and Assigned(ABitBtn.Images) then
begin
{ find imagelist scaled}
resolution:=ABitBtn.Images.Resolution[round(AbitBtn.Images.Width*ScaleFactor)];
resolution.GetRawImage(ABitBtn.ImageIndex,raw);
{ convice the bitmap it has actually another format }
AGlyph.BeginUpdate();
raw.Description.Init_BPP32_R8G8B8A8_BIO_TTB(resolution.Width,resolution.Height);
AGlyph.LoadFromRawImage(raw,false);
AGlyph.EndUpdate();
end else
AGlyph.Assign(AValue.Glyph);
if not AGlyph.Empty then
AImage := gtk_image_new_from_pixbuf(TGtk3Image(AGlyph.Handle).Handle)
else
AImage := nil;
if Assigned(AImage) then
gtk_button_set_image(PGtkButton(TGtk3Button(ABitBtn.Handle).Widget), AImage)
else
PGtkButton(TGtk3Button(ABitBtn.Handle).Widget)^.always_show_image:=false;
{ store glyph to prevent leaks }
TGtk3Button(ABitBtn.Handle).Image:=AGlyph;
end;
end;
class procedure TGtk3WSBitBtn.SetLayout(const ABitBtn: TCustomBitBtn;