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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/gtk/dvrenderer.h | |
3 | // Purpose: wxDataViewRenderer for GTK wxDataViewCtrl implementation | |
4 | // Author: Robert Roebling, Vadim Zeitlin | |
5 | // Created: 2009-11-07 (extracted from wx/gtk/dataview.h) | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2006 Robert Roebling | |
8 | // (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org> | |
9 | // Licence: wxWindows licence | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef _WX_GTK_DVRENDERER_H_ | |
13 | #define _WX_GTK_DVRENDERER_H_ | |
14 | ||
15 | typedef struct _GtkCellRendererText GtkCellRendererText; | |
16 | typedef struct _GtkTreeViewColumn GtkTreeViewColumn; | |
17 | ||
18 | // ---------------------------------------------------------------------------- | |
19 | // wxDataViewRenderer | |
20 | // ---------------------------------------------------------------------------- | |
21 | ||
22 | class WXDLLIMPEXP_ADV wxDataViewRenderer: public wxDataViewRendererBase | |
23 | { | |
24 | public: | |
25 | wxDataViewRenderer( const wxString &varianttype, | |
26 | wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT, | |
27 | int align = wxDVR_DEFAULT_ALIGNMENT ); | |
28 | ||
29 | virtual void SetMode( wxDataViewCellMode mode ); | |
30 | virtual wxDataViewCellMode GetMode() const; | |
31 | ||
32 | virtual void SetAlignment( int align ); | |
33 | virtual int GetAlignment() const; | |
34 | ||
35 | virtual void EnableEllipsize(wxEllipsizeMode mode = wxELLIPSIZE_MIDDLE); | |
36 | virtual wxEllipsizeMode GetEllipsizeMode() const; | |
37 | ||
38 | // GTK-specific implementation | |
39 | // --------------------------- | |
40 | ||
41 | // pack the GTK cell renderers used by this renderer to the given column | |
42 | // | |
43 | // by default only a single m_renderer is used but some renderers use more | |
44 | // than one GTK cell renderer | |
45 | virtual void GtkPackIntoColumn(GtkTreeViewColumn *column); | |
46 | ||
47 | // called when the cell value was edited by user with the new value | |
48 | // | |
49 | // it validates the new value and notifies the model about the change by | |
50 | // calling GtkOnCellChanged() if it was accepted | |
51 | virtual void GtkOnTextEdited(const gchar *itempath, const wxString& value); | |
52 | ||
53 | GtkCellRenderer* GetGtkHandle() { return m_renderer; } | |
54 | void GtkInitHandlers(); | |
55 | void GtkUpdateAlignment(); | |
56 | ||
57 | // should be overridden to return true if the renderer supports properties | |
58 | // corresponding to wxDataViewItemAttr field, see wxGtkTreeCellDataFunc() | |
59 | // for details | |
60 | virtual bool GtkSupportsAttrs() const { return false; } | |
61 | ||
62 | // if GtkSupportsAttrs() returns true, this function will be called to | |
63 | // effectively set the attribute to use for rendering the next item | |
64 | // | |
65 | // it should return true if the attribute had any non-default properties | |
66 | virtual bool GtkSetAttr(const wxDataViewItemAttr& WXUNUSED(attr)) | |
67 | { return false; } | |
68 | ||
69 | ||
70 | // these functions are only called if GtkSupportsAttrs() returns true and | |
71 | // are used to remember whether the renderer currently uses the default | |
72 | // attributes or if we changed (and not reset them) | |
73 | bool GtkIsUsingDefaultAttrs() const { return m_usingDefaultAttrs; } | |
74 | void GtkSetUsingDefaultAttrs(bool def) { m_usingDefaultAttrs = def; } | |
75 | ||
76 | // return the text renderer used by this renderer for setting text cell | |
77 | // specific attributes: can return NULL if this renderer doesn't render any | |
78 | // text | |
79 | virtual GtkCellRendererText *GtkGetTextRenderer() const { return NULL; } | |
80 | ||
81 | wxDataViewCellMode GtkGetMode() { return m_mode; } | |
82 | ||
83 | protected: | |
84 | virtual void GtkOnCellChanged(const wxVariant& value, | |
85 | const wxDataViewItem& item, | |
86 | unsigned col); | |
87 | ||
88 | ||
89 | GtkCellRenderer *m_renderer; | |
90 | int m_alignment; | |
91 | wxDataViewCellMode m_mode; | |
92 | ||
93 | // true if we hadn't changed any visual attributes or restored them since | |
94 | // doing this | |
95 | bool m_usingDefaultAttrs; | |
96 | ||
97 | protected: | |
98 | DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRenderer) | |
99 | }; | |
100 | ||
101 | #endif // _WX_GTK_DVRENDERER_H_ | |
102 |