1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: Utility functions and classes
4 // Author: Julian Smart
8 // Copyright: (c) Julian Smart
10 /////////////////////////////////////////////////////////////////////////////
14 * \brief A file of utility functions and classes.
24 #include "wx/imaglist.h"
29 * \defgroup ForwardDeclarations Forward Declations
34 class WXDLLEXPORT wxImage
;
35 class WXDLLEXPORT wxNotebook
;
36 class WXDLLEXPORT wxInputStream
;
37 class WXDLLEXPORT wxOutputStream
;
38 class WXDLLEXPORT wxFileInputStream
;
39 class WXDLLEXPORT wxFileOutputStream
;
40 class WXDLLEXPORT wxDataInputStream
;
41 class WXDLLEXPORT wxDataOutputStream
;
42 class WXDLLEXPORT wxSplitterWindow
;
43 class WXDLLEXPORT wxVariant
;
44 class WXDLLEXPORT wxListCtrl
;
54 #define wxNEWLINE wxT("\r\n")
56 #define wxNEWLINE wxT("\n")
59 /// Returns the image type, or -1, determined from the extension.
60 int apDetermineImageType(const wxString
& filename
);
62 /// Convert a colour to a 6-digit hex string
63 wxString
apColourToHexString(const wxColour
& col
);
65 /// Convert 6-digit hex string to a colour
66 wxColour
apHexStringToColour(const wxString
& hex
);
68 /// Convert a wxFont to a string
69 wxString
apFontToString(const wxFont
& font
);
71 /// Convert a string to a wxFont
72 wxFont
apStringToFont(const wxString
& str
);
74 /// Get the index of the given named wxNotebook page
75 int apFindNotebookPage(wxNotebook
* notebook
, const wxString
& name
);
77 /// Returns the system temporary directory.
78 wxString
wxGetTempDir();
80 /// Launch the application associated with the filename's extension
81 bool apInvokeAppForFile(const wxString
& filename
);
83 /// \brief Find the absolute path where this application has been run from.
85 /// \param argv0 wxTheApp->argv[0]
86 /// \param cwd The current working directory (at startup)
87 /// \param appVariableName The name of a variable containing the directory for this app, e.g.
88 /// MYAPPDIR. This is used as a last resort.
89 wxString
apFindAppPath(const wxString
& argv0
, const wxString
& cwd
, const wxString
& appVariableName
= wxEmptyString
);
91 /// Adds a context-sensitive help button, for non-Windows platforms
92 void apAddContextHelpButton(wxWindow
* parent
, wxSizer
* sizer
, int sizerFlags
= wxALIGN_CENTRE
|wxALL
, int sizerBorder
= 5);
94 /// Get selected wxNotebook page
95 wxWindow
* apNotebookGetSelectedPage(wxNotebook
* notebook
);
97 #define wxMAX_ICON_STATES 4
101 wxIconInfo, wxIconTable
102 associate multiple state icons with items in tree controls
103 (and potentially other controls).
105 So instead of having to remember a lot of image list ids,
106 you have a named state info object which contains up to 4 different states
107 (identified by the integers 0 - 3). Each of these states can
108 be in a further 2 sub-states - enabled or disabled.
110 wxIconTable holds a list of these state info objects
111 and has a convenient API. For example, the following adds
112 icons for a checkbox item that can be: on/enabled, off/enabled,
113 on/disabled,off/disabled.
115 m_iconTable.AddInfo("Checkbox", wxICON(checked), 0, true);
116 m_iconTable.AddInfo("Checkbox", wxICON(checked_dis), 0, false);
117 m_iconTable.AddInfo("Checkbox", wxICON(unchecked), 1, true);
118 m_iconTable.AddInfo("Checkbox", wxICON(unchecked_dis), 1, false);
120 When you update the item image in response to (e.g.) user interaction,
121 you can say something like this:
123 int iconId = m_iconTable.GetIconId("Checkbox", 0, false);
125 treeCtrl.SetItemImage(itemId, iconId, wxTreeItemIcon_Normal);
126 treeCtrl.SetItemImage(itemId, iconId, wxTreeItemIcon_Selected);
132 * Stores information about the visual state of an item in a tree control
135 class wxIconInfo
: public wxObject
138 wxIconInfo(const wxString
& name
);
140 // How many states? (Each state
141 // has enabled/disabled state)
142 // Max (say) 4 states, each with
144 int GetStateCount() const { return m_maxStates
; };
146 void SetStateCount(int count
) { m_maxStates
= count
; }
147 int GetIconId(int state
, bool enabled
= true) const;
148 void SetIconId(int state
, bool enabled
, int iconId
);
150 const wxString
& GetName() const { return m_name
; }
154 int m_states
[wxMAX_ICON_STATES
* 2]; // Enabled/disabled
155 wxString m_name
; // Name of icon, e.g. "Package"
160 * Contains a list of wxIconInfos
163 class wxIconTable
: public wxList
166 wxIconTable(wxImageList
* imageList
= NULL
);
168 void AppendInfo(wxIconInfo
* info
);
170 // Easy way of initialising both the image list and the
171 // info db. It will generate image ids itself while appending the icon.
172 // 'state' is an integer from 0 up to the max allowed, representing a different
173 // state. There may be only one, or (for a checkbox) there may be two.
174 // A folder that can be open or closed would have two states.
175 // Enabled/disabled is taken as a special case.
176 bool AddInfo(const wxString
& name
, const wxIcon
& icon
, int state
, bool enabled
);
178 wxIconInfo
* FindInfo(const wxString
& name
) const;
180 int GetIconId(const wxString
& name
, int state
, bool enabled
= true) const;
181 bool SetIconId(const wxString
& name
, int state
, bool enabled
, int iconId
) ;
183 void SetImageList(wxImageList
* imageList
) { m_imageList
= imageList
; }
184 wxImageList
* GetImageList() const { return m_imageList
; }
187 wxImageList
* m_imageList
;
190 /// Useful insertion operators for wxOutputStream.
191 wxOutputStream
& operator <<(wxOutputStream
&, const wxString
& s
);
192 wxOutputStream
& operator <<(wxOutputStream
&, const char c
);
193 wxOutputStream
& operator <<(wxOutputStream
&, long l
);
195 // Convert characters to HTML equivalents
196 wxString
ctEscapeHTMLCharacters(const wxString
& str
);
198 // Match 'matchText' against 'matchAgainst', optionally constraining to
200 bool ctMatchString(const wxString
& matchAgainst
, const wxString
& matchText
, bool wholeWordOnly
);