399b0ff9ae
Minimal changes to the code to allow using bigger bitmaps from wxBitmapBundle in high DPI instead of having to create individual bitmaps with scale factor greater than 1. Notice that this is not actually used anywhere in wxGTK yet, but will be soon.
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/gtk/private/image.h
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// Author: Paul Cornett
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// Copyright: (c) 2020 Paul Cornett
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#include "wx/bmpbndl.h"
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#include "wx/math.h"
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// Class that can be used in place of GtkImage, to allow drawing of alternate
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// bitmaps, such as HiDPI or disabled.
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class wxGtkImage: GtkImage
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{
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public:
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struct BitmapProvider
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{
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virtual ~BitmapProvider() { }
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virtual double GetScale() const = 0;
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virtual wxBitmap Get() const = 0;
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virtual void Set(const wxBitmapBundle&) { }
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// Simple helpers used in implementation.
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bool IsScaled() const { return !wxIsSameDouble(GetScale(), 1); }
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wxBitmap GetAtScale(const wxBitmapBundle& b) const
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{
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return b.GetBitmap(b.GetDefaultSize()*GetScale());
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}
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};
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static GType Type();
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static GtkWidget* New(BitmapProvider* provider);
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static GtkWidget* New(wxWindow* win = NULL);
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// Use bitmaps from the given bundle, the logical bitmap size is the
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// default size of the bundle.
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void Set(const wxBitmapBundle& bitmapBundle);
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// This pointer is never null and is owned by this class.
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BitmapProvider* m_provider;
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wxDECLARE_NO_COPY_CLASS(wxGtkImage);
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// This class is constructed by New() and destroyed by its GObject
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// finalizer, so neither its ctor nor dtor can ever be used.
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wxGtkImage() wxMEMBER_DELETE;
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~wxGtkImage() wxMEMBER_DELETE;
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};
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#define WX_GTK_IMAGE(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, wxGtkImage::Type(), wxGtkImage)
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#define WX_GTK_IS_IMAGE(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, wxGtkImage::Type())
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