interface/wx/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
  12     A status bar is a narrow window that can be placed along the bottom of a frame
  13     to give small amounts of status information. It can contain one or more fields,
  14     one or more of which can be variable length according to the size of the window.
  15
  16     @beginStyleTable
  17     @style{wxST_SIZEGRIP}
  18         On Windows 95, displays a gripper at right-hand side of the status bar.
  19     @endStyleTable
  20
  21     @todo reference to win95 may be old and wrong
  22
  23     @remarks
  24     It is possible to create controls and other windows on the status bar.
  25     Position these windows from an OnSize event handler.
  26
  27     @library{wxcore}
  28     @category{miscwnd}
  29
  30     @see wxFrame, @ref page_samples_statbar
  31 */
  32 class wxStatusBar : public wxWindow
  33 {
  34 public:
  35     /**
  36         Default ctor.
  37     */
  38     wxStatusBar();
  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.
  47             It may take a value of -1 to indicate a default 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, allowing the application user to set Motif resource values for
  53             individual windows.
  54
  55         @see Create()
  56     */
  57     wxStatusBar(wxWindow* parent, wxWindowID id = wxID_ANY,
  58                 long style = wxST_SIZEGRIP,
  59                 const wxString& name = wxStatusBarNameStr);
  60
  61     /**
  62         Destructor.
  63     */
  64     virtual ~wxStatusBar();
  65
  66     /**
  67         Creates the window, for two-step construction.
  68         See wxStatusBar() for details.
  69     */
  70     bool Create(wxWindow* parent, wxWindowID id = wxID_ANY,
  71                 long style = wxST_SIZEGRIP,
  72                 const wxString& name = wxStatusBarNameStr);
  73
  74     /**
  75         Returns the size and position of a field's internal bounding rectangle.
  76
  77         @param i
  78             The field in question.
  79         @param rect
  80             The rectangle values are placed in this variable.
  81
  82         @return @true if the field index is valid, @false otherwise.
  83
  84         @see wxRect
  85     */
  86     virtual bool GetFieldRect(int i, wxRect& rect) const;
  87
  88     /**
  89         Returns the number of fields in the status bar.
  90     */
  91     int GetFieldsCount() const;
  92
  93     /**
  94         Returns the string associated with a status bar field.
  95
  96         @param i
  97             The number of the status field to retrieve, starting from zero.
  98
  99         @return The status field string if the field is valid, otherwise the
 100                 empty string.
 101
 102         @see SetStatusText()
 103     */
 104     virtual wxString GetStatusText(int i = 0) const;
 105
 106     /**
 107         Sets the field text to the top of the stack, and pops the stack of saved
 108         strings.
 109
 110         @see PushStatusText()
 111     */
 112     void PopStatusText(int field = 0);
 113
 114     /**
 115         Saves the current field text in a per field stack, and sets the field text
 116         to the string passed as argument.
 117     */
 118     void PushStatusText(const wxString& string, int field = 0);
 119
 120     /**
 121         Sets the number of fields, and optionally the field widths.
 122
 123         @param number
 124             The number of fields.
 125         @param widths
 126             An array of n integers interpreted in the same way as
 127             in SetStatusWidths().
 128     */
 129     virtual void SetFieldsCount(int number = 1, const int* widths = NULL);
 130
 131     /**
 132         Sets the minimal possible height for the status bar.
 133
 134         The real height may be bigger than the height specified here depending
 135         on the size of the font used by the status bar.
 136     */
 137     virtual void SetMinHeight(int height);
 138
 139     /**
 140         Sets the styles of the fields in the status line which can make fields appear
 141         flat or raised instead of the standard sunken 3D border.
 142
 143         @param n
 144             The number of fields in the status bar. Must be equal to the
 145             number passed to SetFieldsCount() the last time it was called.
 146         @param styles
 147             Contains an array of n integers with the styles for each field. There
 148             are three possible styles:
 149             - wxSB_NORMAL (default): The field appears sunken with a standard 3D border.
 150             - wxSB_FLAT: No border is painted around the field so that it appears flat.
 151             - wxSB_RAISED: A raised 3D border is painted around the field.
 152     */
 153     virtual void SetStatusStyles(int n, const int* styles);
 154
 155     /**
 156         Sets the text for one field.
 157
 158         @param text
 159             The text to be set. Use an empty string ("") to clear the field.
 160         @param i
 161             The field to set, starting from zero.
 162
 163         @see GetStatusText(), wxFrame::SetStatusText
 164     */
 165     virtual void SetStatusText(const wxString& text, int i = 0);
 166
 167     /**
 168         Sets the widths of the fields in the status line. There are two types of
 169         fields: fixed widths one and variable width fields. For the fixed width fields
 170         you should specify their (constant) width in pixels. For the variable width
 171         fields, specify a negative number which indicates how the field should expand:
 172         the space left for all variable width fields is divided between them according
 173         to the absolute value of this number. A variable width field with width of -2
 174         gets twice as much of it as a field with width -1 and so on.
 175
 176         For example, to create one fixed width field of width 100 in the right part of
 177         the status bar and two more fields which get 66% and 33% of the remaining
 178         space correspondingly, you should use an array containing -2, -1 and 100.
 179
 180         @param n
 181             The number of fields in the status bar. Must be equal to the
 182             number passed to SetFieldsCount() the last time it was called.
 183         @param widths_field
 184             Contains an array of n integers, each of which is either an
 185             absolute status field width in pixels if positive or indicates a
 186             variable width field if negative.
 187
 188         @remarks The widths of the variable fields are calculated from the total
 189                  width of all fields, minus the sum of widths of the
 190                  non-variable fields, divided by the number of variable fields.
 191
 192         @see SetFieldsCount(), wxFrame::SetStatusWidths()
 193     */
 194     virtual void SetStatusWidths(int n, const int* widths_field);
 195 };
 196