docs/latex/wx/symbolpickerdialog.tex

   1 \section{\class{wxSymbolPickerDialog}}\label{wxsymbolpickerdialog}
   2
   3 wxSymbolPickerDialog presents the user with a choice of fonts and a grid
   4 of available characters. This modal dialog provides the application with
   5 a selected symbol and optional font selection.
   6
   7 Although this dialog is contained in the rich text library, the dialog
   8 is generic and can be used in other contexts.
   9
  10 To use the dialog, pass a default symbol specified as a string, an initial font name,
  11 and a current font name. The difference between the initial font and
  12 current font is that the initial font determines what the font control will be
  13 set to when the dialog shows - an empty string will show the selection {\it normal text}.
  14 The current font, on the other hand, is used by the dialog to determine what font
  15 to display the characters in, even when no initial font is selected.
  16 This allows the user (and application) to distinguish between inserting a
  17 symbol in the current font, and inserting it with a specified font.
  18
  19 When the dialog is dismissed, the application can get the selected symbol
  20 with GetSymbol and test whether a font was specified with UseNormalFont,
  21 fetching the specified font with GetFontName.
  22
  23 Here's a realistic example, inserting the supplied symbol into a
  24 rich text control in either the current font or specified font.
  25
  26 \begin{verbatim}
  27     wxRichTextCtrl* ctrl = (wxRichTextCtrl*) FindWindow(ID_RICHTEXT_CTRL);
  28
  29     wxTextAttrEx attr;
  30     attr.SetFlags(wxTEXT_ATTR_FONT);
  31     ctrl->GetStyle(ctrl->GetInsertionPoint(), attr);
  32
  33     wxString currentFontName;
  34     if (attr.HasFont() && attr.GetFont().Ok())
  35         currentFontName = attr.GetFont().GetFaceName();
  36
  37     // Don't set the initial font in the dialog (so the user is choosing
  38     // 'normal text', i.e. the current font) but do tell the dialog
  39     // what 'normal text' is.
  40
  41     wxSymbolPickerDialog dlg(wxT("*"), wxEmptyString, currentFontName, this);
  42
  43     if (dlg.ShowModal() == wxID_OK)
  44     {
  45         if (dlg.HasSelection())
  46         {
  47             long insertionPoint = ctrl->GetInsertionPoint();
  48
  49             ctrl->WriteText(dlg.GetSymbol());
  50
  51             if (!dlg.UseNormalFont())
  52             {
  53                 wxFont font(attr.GetFont());
  54                 font.SetFaceName(dlg.GetFontName());
  55                 attr.SetFont(font);
  56                 ctrl->SetStyle(insertionPoint, insertionPoint+1, attr);
  57             }
  58         }
  59     }
  60 \end{verbatim}
  61
  62 \wxheading{Derived from}
  63
  64 \helpref{wxDialog}{wxdialog}
  65
  66 \wxheading{Include files}
  67
  68 <wx/richtext/richtextsymboldlg.h>
  69
  70 \wxheading{Library}
  71
  72 \helpref{wxRichtext}{librarieslist}
  73
  74 \wxheading{Data structures}
  75
  76 \latexignore{\rtfignore{\wxheading{Members}}}
  77
  78
  79 \membersection{wxSymbolPickerDialog::wxSymbolPickerDialog}\label{wxsymbolpickerdialogwxsymbolpickerdialog}
  80
  81 \func{}{wxSymbolPickerDialog}{\param{const wxString\& }{symbol}, \param{const wxString\& }{initialFont}, \param{const wxString\& }{normalTextFont}, \param{wxWindow* }{parent}, \param{wxWindowID }{id = wxID\_ANY}, \param{const wxString\& }{title = \_("Symbols")}, \param{const wxPoint\& }{pos = wxDefaultPosition}, \param{const wxSize\& }{size = wxDefaultSize}, \param{long }{style = wxDEFAULT\_DIALOG\_STYLE|wxRESIZE\_BORDER|wxCLOSE\_BOX}}
  82
  83 \func{}{wxSymbolPickerDialog}{\void}
  84
  85 Constructors.
  86
  87 \wxheading{Parameters}
  88
  89 \docparam{symbol}{The initial symbol to show. Specify a single character in a string, or an empty string.}
  90
  91 \docparam{initialFont}{The initial font to be displayed in the font list. If empty, the item {\it normal text} will be selected.}
  92
  93 \docparam{normalTextFont}{The font the dialog will use to display the symbols if the initial font is empty.}
  94
  95 \docparam{parent}{The dialog's parent.}
  96
  97 \docparam{id}{The dialog's identifier.}
  98
  99 \docparam{title}{The dialog's caption.}
 100
 101 \docparam{pos}{The dialog's position.}
 102
 103 \docparam{size}{The dialog's size.}
 104
 105 \docparam{style}{The dialog's window style.}
 106
 107 \membersection{wxSymbolPickerDialog::Create}\label{wxsymbolpickerdialogcreate}
 108
 109 \func{bool}{Create}{\param{const wxString\& }{symbol}, \param{const wxString\& }{initialFont}, \param{const wxString\& }{normalTextFont}, \param{wxWindow* }{parent}, \param{wxWindowID }{id = wxID\_ANY}, \param{const wxString\& }{title = \_("Symbols")}, \param{const wxPoint\& }{pos = wxDefaultPosition}, \param{const wxSize\& }{size = wxDefaultSize}, \param{long }{style = wxDEFAULT\_DIALOG\_STYLE|wxRESIZE\_BORDER|wxCLOSE\_BOX}}
 110
 111 Creation: see \helpref{the constructor}{wxsymbolpickerdialogwxsymbolpickerdialog} for details about the parameters.
 112
 113 \membersection{wxSymbolPickerDialog::GetFontName}\label{wxsymbolpickerdialoggetfontname}
 114
 115 \constfunc{wxString}{GetFontName}{\void}
 116
 117 Returns the font name (the font reflected in the font list).
 118
 119 \membersection{wxSymbolPickerDialog::GetFromUnicode}\label{wxsymbolpickerdialoggetfromunicode}
 120
 121 \constfunc{bool}{GetFromUnicode}{\void}
 122
 123 Returns \true if the dialog is showing the full range of Unicode characters.
 124
 125 \membersection{wxSymbolPickerDialog::GetNormalTextFontName}\label{wxsymbolpickerdialoggetnormaltextfontname}
 126
 127 \constfunc{wxString}{GetNormalTextFontName}{\void}
 128
 129 Gets the font name used for displaying symbols in the absence of a selected font.
 130
 131 \membersection{wxSymbolPickerDialog::GetSymbol}\label{wxsymbolpickerdialoggetsymbol}
 132
 133 \constfunc{wxString}{GetSymbol}{\void}
 134
 135 Gets the current or initial symbol as a string.
 136
 137 \membersection{wxSymbolPickerDialog::GetSymbolChar}\label{wxsymbolpickerdialoggetsymbolchar}
 138
 139 \constfunc{int}{GetSymbolChar}{\void}
 140
 141 Gets the selected symbol character as an integer.
 142
 143 \membersection{wxSymbolPickerDialog::HasSelection}\label{wxsymbolpickerdialoghasselection}
 144
 145 \constfunc{bool}{HasSelection}{\void}
 146
 147 Returns \true if a symbol is selected.
 148
 149 \membersection{wxSymbolPickerDialog::SetFontName}\label{wxsymbolpickerdialogsetfontname}
 150
 151 \func{void}{SetFontName}{\param{const wxString\& }{value}}
 152
 153 Sets the initial/selected font name.
 154
 155 \membersection{wxSymbolPickerDialog::SetFromUnicode}\label{wxsymbolpickerdialogsetfromunicode}
 156
 157 \func{void}{SetFromUnicode}{\param{bool }{value}}
 158
 159 Sets the internal flag indicating that the full Unicode range should be displayed.
 160
 161 \membersection{wxSymbolPickerDialog::SetNormalTextFontName}\label{wxsymbolpickerdialogsetnormaltextfontname}
 162
 163 \func{void}{SetNormalTextFontName}{\param{const wxString\& }{value}}
 164
 165 Sets the name of the font to be used in the absence of a selected font.
 166
 167 \membersection{wxSymbolPickerDialog::SetSymbol}\label{wxsymbolpickerdialogsetsymbol}
 168
 169 \func{void}{SetSymbol}{\param{const wxString\& }{value}}
 170
 171 Sets the symbol as a one or zero character string.
 172
 173 \membersection{wxSymbolPickerDialog::SetUnicodeMode}\label{wxsymbolpickerdialogsetunicodemode}
 174
 175 \func{void}{SetUnicodeMode}{\param{bool }{unicodeMode}}
 176
 177 Sets Unicode display mode.
 178
 179 \membersection{wxSymbolPickerDialog::UseNormalFont}\label{wxsymbolpickerdialogusenormalfont}
 180
 181 \constfunc{bool}{UseNormalFont}{\void}
 182
 183 Returns true if the has specified normal text - that is, there is no selected font.
 184