e9e1023393
Since wxGtkImage is a GtkWidget, we can get the scale directly from it, no need for an associated wxWindow pointer just to get the scale.
49 lines
1.6 KiB
C++
49 lines
1.6 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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// 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 wxBitmap Get(int scale) const = 0;
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virtual void Set(const wxBitmapBundle&) { }
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// Simple helpers used in implementation.
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static wxBitmap GetAtScale(const wxBitmapBundle& b, int scale)
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{
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return b.GetBitmap(b.GetDefaultSize() * scale);
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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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