6eec70b984
This commit adds no changes in functionality but paves way for the upcoming improvements of wxDataViewCustomRenderer. First, introduce wxDataViewCustomRendererBase class in order to allow implementing behaviour common to custom renderers in all ports in this class instead of triplicating it. This required splitting monolithic dataview.h in more parts, now we have wx/dvrenderer.h which defines wxDataViewRendererBase and the new wxDataViewCustomRendererBase and includes wx/port/dvrenderer.h which define wxDataViewRenderer and wx/port/dvrenderers.h which defines all the other renderer classes. Also bring renderers hierarchy in the generic version closer to other ports: all standard renderer classes now inherit from wxDataViewRenderer and not wxDataViewCustomRenderer in for consistency with the other ports. wxDataViewRenderer itself still does derive from wxDataViewCustomRendererBase, unlike elsewhere, but this is unavoidable considering that all generic renderers are custom ones. Finally do some cleanup in OS X part of the code: correct indentation, spacing, comment style. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62589 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
117 lines
4.4 KiB
C++
117 lines
4.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/dvrenderer.h
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// Purpose: wxDataViewRenderer for generic wxDataViewCtrl implementation
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// Author: Robert Roebling, Vadim Zeitlin
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// Created: 2009-11-07 (extracted from wx/generic/dataview.h)
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// RCS-ID: $Id: wxhead.h,v 1.11 2009-06-29 10:23:04 zeitlin Exp $
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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_GENERIC_DVRENDERER_H_
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#define _WX_GENERIC_DVRENDERER_H_
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// ----------------------------------------------------------------------------
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// wxDataViewRenderer
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_ADV wxDataViewRenderer: public wxDataViewCustomRendererBase
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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 ~wxDataViewRenderer();
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// these methods are used to draw the cell contents, Render() doesn't care
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// about the attributes while RenderWithAttr() does -- override it if you
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// want to take the attributes defined for this cell into account, otherwise
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// overriding Render() is enough
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virtual bool Render( wxRect cell, wxDC *dc, int state ) = 0;
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// NB: RenderWithAttr() also has more standard parameter order and types
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virtual bool
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RenderWithAttr(wxDC& dc,
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const wxRect& rect,
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int align, // combination of horizontal and vertical
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const wxDataViewItemAttr *attr, // may be NULL if none
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int state);
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virtual wxSize GetSize() const = 0;
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virtual wxDC *GetDC();
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// Draw the text using the provided attributes
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void RenderText(wxDC& dc,
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const wxRect& rect,
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int align,
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const wxString& text,
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const wxDataViewItemAttr *attr, // may be NULL if none
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int state,
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int xoffset = 0);
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// Overload using standard attributes
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void RenderText(const wxString& text,
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int xoffset,
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wxRect cell,
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wxDC *dc,
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int state)
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{
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RenderText(*dc, cell, wxALIGN_NOT, text, NULL, state, xoffset);
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}
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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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{ m_ellipsizeMode = mode; }
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virtual wxEllipsizeMode GetEllipsizeMode() const
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{ return m_ellipsizeMode; }
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virtual void SetMode( wxDataViewCellMode mode )
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{ m_mode = mode; }
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virtual wxDataViewCellMode GetMode() const
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{ return m_mode; }
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// implementation
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int CalculateAlignment() const;
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// this is a replacement for dynamic_cast<wxDataViewCustomRenderer> in the
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// code checking whether the renderer is interested in mouse events, it's
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// overridden in wxDataViewCustomRenderer to return the object itself but
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// intentionally returns NULL for all the other renderer classes as the
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// user should _not_ be able to override Activate/LeftClick() when deriving
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// from them for consistency with the other ports and while we can't
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// prevent this from working at compile-time because all renderer are
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// custom renderers in the generic implementation, we at least make sure
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// that it doesn't work at run-time because Activate/LeftClick() would
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// never be called
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virtual wxDataViewCustomRenderer *WXGetAsCustom() { return NULL; }
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protected:
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// This is just a convenience for the derived classes overriding
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// RenderWithAttr() to avoid repeating the same wxFAIL_MSG() in all of them
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bool DummyRender(wxRect WXUNUSED(cell),
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wxDC * WXUNUSED(dc),
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int WXUNUSED(state))
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{
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wxFAIL_MSG("shouldn't be called at all, use RenderWithAttr() instead");
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return false;
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}
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private:
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int m_align;
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wxDataViewCellMode m_mode;
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wxEllipsizeMode m_ellipsizeMode;
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wxDC *m_dc;
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DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRenderer)
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};
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#endif // _WX_GENERIC_DVRENDERER_H_
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