361c6357b4
wxOSX and wxGTK previously used their own methods for handling the enabled state and the attributes of the items being rendered, change them to reuse the same methods as the generic implementation, i.e. SetEnabled() and SetAttr() and remove the port-specific GtkSetAttr(), OSXApplyAttr() and so on. This has the advantage of ensuring that the logic is the same for all platforms (e.g. item enabled status wasn't handled in the same way in wxGTK as in the other ports previously) and hopefully makes the code simpler by cutting down on the number of virtual methods. Notice that GtkSupportsAttrs() optimization was removed as it didn't seem to be worth the bother (we basically saved a call to a virtual model method at a price of a virtual renderer method call) and preserving it would have complicated things needlessly.
98 lines
3.7 KiB
C++
98 lines
3.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/gtk/dvrenderer.h
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// Purpose: wxDataViewRenderer for GTK wxDataViewCtrl implementation
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// Author: Robert Roebling, Vadim Zeitlin
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// Created: 2009-11-07 (extracted from wx/gtk/dataview.h)
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// Copyright: (c) 2006 Robert Roebling
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// (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GTK_DVRENDERER_H_
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#define _WX_GTK_DVRENDERER_H_
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typedef struct _GtkCellRendererText GtkCellRendererText;
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typedef struct _GtkTreeViewColumn GtkTreeViewColumn;
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// ----------------------------------------------------------------------------
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// wxDataViewRenderer
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_ADV wxDataViewRenderer: public wxDataViewRendererBase
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{
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public:
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wxDataViewRenderer( const wxString &varianttype,
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wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
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int align = wxDVR_DEFAULT_ALIGNMENT );
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virtual void SetMode( wxDataViewCellMode mode );
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virtual wxDataViewCellMode GetMode() const;
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virtual void SetAlignment( int align );
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virtual int GetAlignment() const;
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virtual void EnableEllipsize(wxEllipsizeMode mode = wxELLIPSIZE_MIDDLE);
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virtual wxEllipsizeMode GetEllipsizeMode() const;
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virtual bool FinishEditing() wxOVERRIDE;
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// GTK-specific implementation
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// ---------------------------
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// pack the GTK cell renderers used by this renderer to the given column
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//
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// by default only a single m_renderer is used but some renderers use more
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// than one GTK cell renderer
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virtual void GtkPackIntoColumn(GtkTreeViewColumn *column);
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// called when the cell value was edited by user with the new value
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//
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// it validates the new value and notifies the model about the change by
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// calling GtkOnCellChanged() if it was accepted
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virtual void GtkOnTextEdited(const char *itempath, const wxString& value);
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GtkCellRenderer* GetGtkHandle() { return m_renderer; }
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void GtkInitHandlers();
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void GtkUpdateAlignment() { GtkApplyAlignment(m_renderer); }
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// return the text renderer used by this renderer for setting text cell
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// specific attributes: can return NULL if this renderer doesn't render any
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// text
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virtual GtkCellRendererText *GtkGetTextRenderer() const { return NULL; }
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private:
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// Change the mode at GTK level without touching m_mode, this is useful for
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// temporarily making the renderer insensitive but does mean that GetMode()
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// may return a value different from the actual GTK renderer mode.
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void GtkSetMode(wxDataViewCellMode mode);
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protected:
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virtual void SetAttr(const wxDataViewItemAttr& attr) wxOVERRIDE;
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virtual void SetEnabled(bool enabled) wxOVERRIDE;
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virtual void GtkOnCellChanged(const wxVariant& value,
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const wxDataViewItem& item,
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unsigned col);
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// Apply our effective alignment (i.e. m_alignment if specified or the
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// associated column alignment by default) to the given renderer.
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void GtkApplyAlignment(GtkCellRenderer *renderer);
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GtkCellRenderer *m_renderer;
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int m_alignment;
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// We store the renderer mode at wx level as it can differ from the mode of
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// the corresponding GTK+ renderer as explained above.
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wxDataViewCellMode m_mode;
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// true if we hadn't changed any visual attributes or restored them since
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// doing this
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bool m_usingDefaultAttrs;
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protected:
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wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRenderer);
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};
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#endif // _WX_GTK_DVRENDERER_H_
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