interface/wx/fontpicker.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        fontpicker.h
   3 // Purpose:     interface of wxFontPickerCtrl
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9
  10 #define wxFNTP_FONTDESC_AS_LABEL      0x0008
  11 #define wxFNTP_USEFONT_FOR_LABEL      0x0010
  12 #define wxFONTBTN_DEFAULT_STYLE       (wxFNTP_FONTDESC_AS_LABEL | wxFNTP_USEFONT_FOR_LABEL)
  13 #define wxFNTP_USE_TEXTCTRL           (wxPB_USE_TEXTCTRL)
  14 #define wxFNTP_DEFAULT_STYLE          (wxFNTP_FONTDESC_AS_LABEL|wxFNTP_USEFONT_FOR_LABEL)
  15
  16 wxEventType wxEVT_COMMAND_FONTPICKER_CHANGED;
  17
  18
  19 /**
  20     @class wxFontPickerCtrl
  21
  22     This control allows the user to select a font. The generic implementation is
  23     a button which brings up a wxFontDialog when clicked. Native implementation
  24     may differ but this is usually a (small) widget which give access to the
  25     font-chooser dialog.
  26     It is only available if @c wxUSE_FONTPICKERCTRL is set to 1 (the default).
  27
  28     @beginStyleTable
  29     @style{wxFNTP_DEFAULT_STYLE}
  30            The default style: wxFNTP_FONTDESC_AS_LABEL | wxFNTP_USEFONT_FOR_LABEL.
  31     @style{wxFNTP_USE_TEXTCTRL}
  32            Creates a text control to the left of the picker button which is
  33            completely managed by the wxFontPickerCtrl and which can be used by
  34            the user to specify a font (see SetSelectedFont). The text control
  35            is automatically synchronized with button's value. Use functions
  36            defined in wxPickerBase to modify the text control.
  37     @style{wxFNTP_FONTDESC_AS_LABEL}
  38            Keeps the label of the button updated with the fontface name and
  39            the font size. E.g. choosing "Times New Roman bold, italic with
  40            size 10" from the fontdialog, will update the label (overwriting
  41            any previous label) with the "Times New Roman, 10" text.
  42     @style{wxFNTP_USEFONT_FOR_LABEL}
  43            Uses the currently selected font to draw the label of the button.
  44     @endStyleTable
  45
  46     @beginEventEmissionTable{wxFontPickerEvent}
  47     @event{EVT_FONTPICKER_CHANGED(id, func)}
  48         The user changed the font selected in the control either using the button
  49         or using text control (see wxFNTP_USE_TEXTCTRL; note that in this case the
  50         event is fired only if the user's input is valid, i.e. recognizable).
  51     @endEventTable
  52
  53     @library{wxcore}
  54     @category{pickers}
  55     @appearance{fontpickerctrl}
  56
  57     @see wxFontDialog, wxFontPickerEvent
  58 */
  59 class wxFontPickerCtrl : public wxPickerBase
  60 {
  61 public:
  62     wxFontPickerCtrl();
  63
  64     /**
  65         Initializes the object and calls Create() with
  66         all the parameters.
  67     */
  68     wxFontPickerCtrl(wxWindow* parent, wxWindowID id,
  69                      const wxFont& font = wxNullFont,
  70                      const wxPoint& pos = wxDefaultPosition,
  71                      const wxSize& size = wxDefaultSize,
  72                      long style = wxFNTP_DEFAULT_STYLE,
  73                      const wxValidator& validator = wxDefaultValidator,
  74                      const wxString& name = wxFontPickerCtrlNameStr);
  75
  76     /**
  77         Creates this widget with given parameters.
  78
  79         @param parent
  80             Parent window, must not be non-@NULL.
  81         @param id
  82             The identifier for the control.
  83         @param font
  84             The initial font shown in the control.
  85             If ::wxNullFont is given, the default font is used.
  86         @param pos
  87             Initial position.
  88         @param size
  89             Initial size.
  90         @param style
  91             The window style, see wxFNTP_* flags.
  92         @param validator
  93             Validator which can be used for additional date checks.
  94         @param name
  95             Control name.
  96
  97         @return @true if the control was successfully created or @false if
  98                  creation failed.
  99     */
 100     bool Create(wxWindow* parent, wxWindowID id,
 101                 const wxFont& font = wxNullFont,
 102                 const wxPoint& pos = wxDefaultPosition,
 103                 const wxSize& size = wxDefaultSize,
 104                 long style = wxFNTP_DEFAULT_STYLE,
 105                 const wxValidator& validator = wxDefaultValidator,
 106                 const wxString& name = wxFontPickerCtrlNameStr);
 107
 108     /**
 109         Returns the maximum point size value allowed for the user-chosen font.
 110     */
 111     unsigned int GetMaxPointSize() const;
 112
 113     /**
 114         Returns the currently selected font.
 115         Note that this function is completely different from wxWindow::GetFont.
 116     */
 117     wxFont GetSelectedFont() const;
 118
 119     /**
 120         Sets the maximum point size value allowed for the user-chosen font.
 121
 122         The default value is 100. Note that big fonts can require a lot of memory and
 123         CPU time both for creation and for rendering; thus, specially because the user
 124         has the option to specify the fontsize through a text control
 125         (see wxFNTP_USE_TEXTCTRL), it's a good idea to put a limit to the maximum
 126         font size when huge fonts do not make much sense.
 127     */
 128     void SetMaxPointSize(unsigned int max);
 129
 130     /**
 131         Sets the currently selected font.
 132         Note that this function is completely different from wxWindow::SetFont.
 133     */
 134     void SetSelectedFont(const wxFont& font);
 135 };
 136
 137
 138
 139 /**
 140     @class wxFontPickerEvent
 141
 142     This event class is used for the events generated by
 143     wxFontPickerCtrl.
 144
 145     @beginEventTable{wxFontPickerEvent}
 146     @event{EVT_FONTPICKER_CHANGED(id, func)}
 147         Generated whenever the selected font changes.
 148     @endEventTable
 149
 150     @library{wxcore}
 151     @category{events}
 152
 153     @see wxFontPickerCtrl
 154 */
 155 class wxFontPickerEvent : public wxCommandEvent
 156 {
 157 public:
 158     /**
 159         The constructor is not normally used by the user code.
 160     */
 161     wxFontPickerEvent(wxObject* generator, int id,
 162                       const wxFont& font);
 163
 164     /**
 165         Retrieve the font the user has just selected.
 166     */
 167     wxFont GetFont() const;
 168
 169     /**
 170         Set the font associated with the event.
 171     */
 172     void SetFont(const wxFont& f);
 173 };
 174