interface/statusbr.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statusbr.h
   3 // Purpose:     interface of wxStatusBar
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows license
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 /**
  10     @class wxStatusBar
  11     @wxheader{statusbr.h}
  12
  13     A status bar is a narrow window that can be placed along the bottom of a frame
  14     to give
  15     small amounts of status information. It can contain one or more fields, one or
  16     more of which can
  17     be variable length according to the size of the window.
  18
  19     wxWindow
  20
  21     wxEvtHandler
  22
  23     wxObject
  24
  25     @beginStyleTable
  26     @style{wxST_SIZEGRIP}:
  27            On Windows 95, displays a gripper at right-hand side of the status
  28            bar.
  29     @endStyleTable
  30
  31     @library{wxcore}
  32     @category{miscwnd}
  33
  34     @see wxFrame, @ref overview_samplestatbar "Status bar sample"
  35 */
  36 class wxStatusBar : public wxWindow
  37 {
  38 public:
  39     //@{
  40     /**
  41         Constructor, creating the window.
  42
  43         @param parent
  44             The window parent, usually a frame.
  45         @param id
  46             The window identifier. It may take a value of -1 to indicate a default
  47         value.
  48         @param style
  49             The window style. See wxStatusBar.
  50         @param name
  51             The name of the window. This parameter is used to associate a name with the
  52         item,
  53             allowing the application user to set Motif resource values for
  54             individual windows.
  55
  56         @see Create()
  57     */
  58     wxStatusBar();
  59     wxStatusBar(wxWindow* parent, wxWindowID id = wxID_ANY,
  60                 long style = wxST_SIZEGRIP,
  61                 const wxString& name = "statusBar");
  62     //@}
  63
  64     /**
  65         Destructor.
  66     */
  67     ~wxStatusBar();
  68
  69     /**
  70         Creates the window, for two-step construction.
  71         See wxStatusBar() for details.
  72     */
  73     bool Create(wxWindow* parent, wxWindowID id = wxID_ANY,
  74                 long style = wxST_SIZEGRIP,
  75                 const wxString& name = "statusBar");
  76
  77     /**
  78         Returns the size and position of a field's internal bounding rectangle.
  79
  80         @param i
  81             The field in question.
  82         @param rect
  83             The rectangle values are placed in this variable.
  84
  85         @returns @true if the field index is valid, @false otherwise.
  86
  87         @see wxRect
  88     */
  89     virtual bool GetFieldRect(int i, wxRect& rect) const;
  90
  91     /**
  92         Returns the number of fields in the status bar.
  93     */
  94     int GetFieldsCount() const;
  95
  96     /**
  97         Returns the string associated with a status bar field.
  98
  99         @param i
 100             The number of the status field to retrieve, starting from zero.
 101
 102         @returns The status field string if the field is valid, otherwise the
 103                  empty string.
 104
 105         @see SetStatusText()
 106     */
 107     virtual wxString GetStatusText(int i = 0) const;
 108
 109     /**
 110         Sets the field text to the top of the stack, and pops the stack of saved
 111         strings.
 112
 113         @see PushStatusText()
 114     */
 115     void PopStatusText(int field = 0);
 116
 117     /**
 118         Saves the current field text in a per field stack, and sets the field text
 119         to the string passed as argument.
 120     */
 121     void PushStatusText(const wxString& string, int field = 0);
 122
 123     /**
 124         Sets the number of fields, and optionally the field widths.
 125
 126         @param number
 127             The number of fields.
 128         @param widths
 129             An array of n integers interpreted in the same way as
 130             in SetStatusWidths
 131     */
 132     virtual void SetFieldsCount(int number = 1, int* widths = NULL);
 133
 134     /**
 135         Sets the minimal possible height for the status bar. The real height may be
 136         bigger than the height specified here depending on the size of the font used by
 137         the status bar.
 138     */
 139     void SetMinHeight(int height);
 140
 141     /**
 142         Sets the styles of the fields in the status line which can make fields appear
 143         flat
 144         or raised instead of the standard sunken 3D border.
 145
 146         @param n
 147             The number of fields in the status bar. Must be equal to the
 148             number passed to SetFieldsCount the last
 149             time it was called.
 150         @param styles
 151             Contains an array of n integers with the styles for each field. There
 152             are three possible styles:
 153
 154
 155
 156
 157
 158
 159
 160             wxSB_NORMAL
 161
 162
 163
 164
 165             (default) The field appears sunken with a standard 3D border.
 166
 167
 168
 169
 170
 171             wxSB_FLAT
 172
 173
 174
 175
 176             No border is painted around the field so that it appears flat.
 177
 178
 179
 180
 181
 182             wxSB_RAISED
 183
 184
 185
 186
 187             A raised 3D border is painted around the field.
 188     */
 189     virtual void SetStatusStyles(int n, int* styles);
 190
 191     /**
 192         Sets the text for one field.
 193
 194         @param text
 195             The text to be set. Use an empty string ("") to clear the field.
 196         @param i
 197             The field to set, starting from zero.
 198
 199         @see GetStatusText(), wxFrame::SetStatusText
 200     */
 201     virtual void SetStatusText(const wxString& text, int i = 0);
 202
 203     /**
 204         Sets the widths of the fields in the status line. There are two types of
 205         fields: fixed widths one and variable width fields. For the fixed width fields
 206         you should specify their (constant) width in pixels. For the variable width
 207         fields, specify a negative number which indicates how the field should expand:
 208         the space left for all variable width fields is divided between them according
 209         to the absolute value of this number. A variable width field with width of -2
 210         gets twice as much of it as a field with width -1 and so on.
 211         For example, to create one fixed width field of width 100 in the right part of
 212         the status bar and two more fields which get 66% and 33% of the remaining
 213         space correspondingly, you should use an array containing -2, -1 and 100.
 214
 215         @param n
 216             The number of fields in the status bar. Must be equal to the
 217             number passed to SetFieldsCount the last
 218             time it was called.
 219         @param widths
 220             Contains an array of n integers, each of which is
 221             either an absolute status field width in pixels if positive or indicates a
 222             variable width field if negative.
 223
 224         @remarks The widths of the variable fields are calculated from the total
 225                  width of all fields, minus the sum of widths of the
 226                  non-variable fields, divided by the number of variable
 227                  fields.
 228
 229         @see SetFieldsCount(), wxFrame::SetStatusWidths
 230     */
 231     virtual void SetStatusWidths(int n, int* widths);
 232 };
 233