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{Data structures}
  71
  72 \latexignore{\rtfignore{\wxheading{Members}}}
  73
  74
  75 \membersection{wxSymbolPickerDialog::wxSymbolPickerDialog}\label{wxsymbolpickerdialogwxsymbolpickerdialog}
  76
  77 \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}}
  78
  79 \func{}{wxSymbolPickerDialog}{\void}
  80
  81 Constructors.
  82
  83 \wxheading{Parameters}
  84
  85 \docparam{symbol}{The initial symbol to show. Specify a single character in a string, or an empty string.}
  86
  87 \docparam{initialFont}{The initial font to be displayed in the font list. If empty, the item {\it normal text} will be selected.}
  88
  89 \docparam{normalTextFont}{The font the dialog will use to display the symbols if the initial font is empty.}
  90
  91 \docparam{parent}{The dialog's parent.}
  92
  93 \docparam{id}{The dialog's identifier.}
  94
  95 \docparam{title}{The dialog's caption.}
  96
  97 \docparam{pos}{The dialog's position.}
  98
  99 \docparam{size}{The dialog's size.}
 100
 101 \docparam{style}{The dialog's window style.}
 102
 103 \membersection{wxSymbolPickerDialog::Create}\label{wxsymbolpickerdialogcreate}
 104
 105 \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}}
 106
 107 Creation: see \helpref{the constructor}{wxsymbolpickerdialogwxsymbolpickerdialog} for details about the parameters.
 108
 109 \membersection{wxSymbolPickerDialog::GetFontName}\label{wxsymbolpickerdialoggetfontname}
 110
 111 \constfunc{wxString}{GetFontName}{\void}
 112
 113 Returns the font name (the font reflected in the font list).
 114
 115 \membersection{wxSymbolPickerDialog::GetFromUnicode}\label{wxsymbolpickerdialoggetfromunicode}
 116
 117 \constfunc{bool}{GetFromUnicode}{\void}
 118
 119 Returns \true if the dialog is showing the full range of Unicode characters.
 120
 121 \membersection{wxSymbolPickerDialog::GetNormalTextFontName}\label{wxsymbolpickerdialoggetnormaltextfontname}
 122
 123 \constfunc{wxString}{GetNormalTextFontName}{\void}
 124
 125 Gets the font name used for displaying symbols in the absence of a selected font.
 126
 127 \membersection{wxSymbolPickerDialog::GetSymbol}\label{wxsymbolpickerdialoggetsymbol}
 128
 129 \constfunc{wxString}{GetSymbol}{\void}
 130
 131 Gets the current or initial symbol as a string.
 132
 133 \membersection{wxSymbolPickerDialog::GetSymbolChar}\label{wxsymbolpickerdialoggetsymbolchar}
 134
 135 \constfunc{int}{GetSymbolChar}{\void}
 136
 137 Gets the selected symbol character as an integer.
 138
 139 \membersection{wxSymbolPickerDialog::HasSelection}\label{wxsymbolpickerdialoghasselection}
 140
 141 \constfunc{bool}{HasSelection}{\void}
 142
 143 Returns \true if a symbol is selected.
 144
 145 \membersection{wxSymbolPickerDialog::SetFontName}\label{wxsymbolpickerdialogsetfontname}
 146
 147 \func{void}{SetFontName}{\param{const wxString\& }{value}}
 148
 149 Sets the initial/selected font name.
 150
 151 \membersection{wxSymbolPickerDialog::SetFromUnicode}\label{wxsymbolpickerdialogsetfromunicode}
 152
 153 \func{void}{SetFromUnicode}{\param{bool }{value}}
 154
 155 Sets the internal flag indicating that the full Unicode range should be displayed.
 156
 157 \membersection{wxSymbolPickerDialog::SetNormalTextFontName}\label{wxsymbolpickerdialogsetnormaltextfontname}
 158
 159 \func{void}{SetNormalTextFontName}{\param{const wxString\& }{value}}
 160
 161 Sets the name of the font to be used in the absence of a selected font.
 162
 163 \membersection{wxSymbolPickerDialog::SetSymbol}\label{wxsymbolpickerdialogsetsymbol}
 164
 165 \func{void}{SetSymbol}{\param{const wxString\& }{value}}
 166
 167 Sets the symbol as a one or zero character string.
 168
 169 \membersection{wxSymbolPickerDialog::SetUnicodeMode}\label{wxsymbolpickerdialogsetunicodemode}
 170
 171 \func{void}{SetUnicodeMode}{\param{bool }{unicodeMode}}
 172
 173 Sets Unicode display mode.
 174
 175 \membersection{wxSymbolPickerDialog::UseNormalFont}\label{wxsymbolpickerdialogusenormalfont}
 176
 177 \constfunc{bool}{UseNormalFont}{\void}
 178
 179 Returns true if the has specified normal text - that is, there is no selected font.
 180