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         Displays a gripper at the right-hand side of the status bar.
  19     @endStyleTable
  20
  21     @remarks
  22     It is possible to create controls and other windows on the status bar.
  23     Position these windows from an OnSize() event handler.
  24
  25     @library{wxcore}
  26     @category{miscwnd}
  27
  28     @see wxFrame, @ref page_samples_statbar
  29 */
  30 class wxStatusBar : public wxWindow
  31 {
  32 public:
  33     /**
  34         Default ctor.
  35     */
  36     wxStatusBar();
  37
  38     /**
  39         Constructor, creating the window.
  40
  41         @param parent
  42             The window parent, usually a frame.
  43         @param id
  44             The window identifier.
  45             It may take a value of -1 to indicate a default value.
  46         @param style
  47             The window style. See wxStatusBar.
  48         @param name
  49             The name of the window. This parameter is used to associate a name with the
  50             item, allowing the application user to set Motif resource values for
  51             individual windows.
  52
  53         @see Create()
  54     */
  55     wxStatusBar(wxWindow* parent, wxWindowID id = wxID_ANY,
  56                 long style = wxST_SIZEGRIP,
  57                 const wxString& name = wxStatusBarNameStr);
  58
  59     /**
  60         Destructor.
  61     */
  62     virtual ~wxStatusBar();
  63
  64     /**
  65         Creates the window, for two-step construction.
  66         See wxStatusBar() for details.
  67     */
  68     bool Create(wxWindow* parent, wxWindowID id = wxID_ANY,
  69                 long style = wxST_SIZEGRIP,
  70                 const wxString& name = wxStatusBarNameStr);
  71
  72     /**
  73         Returns the size and position of a field's internal bounding rectangle.
  74
  75         @param i
  76             The field in question.
  77         @param rect
  78             The rectangle values are placed in this variable.
  79
  80         @return @true if the field index is valid, @false otherwise.
  81
  82         @see wxRect
  83     */
  84     virtual bool GetFieldRect(int i, wxRect& rect) const;
  85
  86     /**
  87         Returns the number of fields in the status bar.
  88     */
  89     int GetFieldsCount() const;
  90
  91     /**
  92         Returns the string associated with a status bar field.
  93
  94         @param i
  95             The number of the status field to retrieve, starting from zero.
  96
  97         @return The status field string if the field is valid, otherwise the
  98                 empty string.
  99
 100         @see SetStatusText()
 101     */
 102     virtual wxString GetStatusText(int i = 0) const;
 103
 104     /**
 105         Sets the field text to the top of the stack, and pops the stack of saved
 106         strings.
 107
 108         @see PushStatusText()
 109     */
 110     void PopStatusText(int field = 0);
 111
 112     /**
 113         Saves the current field text in a per field stack, and sets the field text
 114         to the string passed as argument.
 115
 116         @see PopStatusText()
 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. If this is greater than the previous number,
 125             then new fields with empty strings will be added to the status bar.
 126         @param widths
 127             An array of n integers interpreted in the same way as
 128             in SetStatusWidths().
 129     */
 130     virtual void SetFieldsCount(int number = 1, const int* widths = NULL);
 131
 132     /**
 133         Sets the minimal possible height for the status bar.
 134
 135         The real height may be bigger than the height specified here depending
 136         on the size of the font used by the status bar.
 137     */
 138     virtual void SetMinHeight(int height);
 139
 140     /**
 141         Sets the styles of the fields in the status line which can make fields appear
 142         flat or raised instead of the standard sunken 3D border.
 143
 144         @param n
 145             The number of fields in the status bar. Must be equal to the
 146             number passed to SetFieldsCount() the last time it was called.
 147         @param styles
 148             Contains an array of n integers with the styles for each field. There
 149             are three possible styles:
 150             - wxSB_NORMAL (default): The field appears sunken with a standard 3D border.
 151             - wxSB_FLAT: No border is painted around the field so that it appears flat.
 152             - wxSB_RAISED: A raised 3D border is painted around the field.
 153     */
 154     virtual void SetStatusStyles(int n, const int* styles);
 155
 156     /**
 157         Sets the text for one field.
 158
 159         @param text
 160             The text to be set. Use an empty string ("") to clear the field.
 161         @param i
 162             The field to set, starting from zero.
 163
 164         @see GetStatusText(), wxFrame::SetStatusText
 165     */
 166     virtual void SetStatusText(const wxString& text, int i = 0);
 167
 168     /**
 169         Sets the widths of the fields in the status line. There are two types of
 170         fields: @b fixed widths and @b variable width fields. For the fixed width fields
 171         you should specify their (constant) width in pixels. For the variable width
 172         fields, specify a negative number which indicates how the field should expand:
 173         the space left for all variable width fields is divided between them according
 174         to the absolute value of this number. A variable width field with width of -2
 175         gets twice as much of it as a field with width -1 and so on.
 176
 177         For example, to create one fixed width field of width 100 in the right part of
 178         the status bar and two more fields which get 66% and 33% of the remaining
 179         space correspondingly, you should use an array containing -2, -1 and 100.
 180
 181         @param n
 182             The number of fields in the status bar. Must be equal to the
 183             number passed to SetFieldsCount() the last time it was called.
 184         @param widths_field
 185             Contains an array of n integers, each of which is either an
 186             absolute status field width in pixels if positive or indicates a
 187             variable width field if negative.
 188             The special value @NULL means that all fields should get the same width.
 189
 190         @remarks The widths of the variable fields are calculated from the total
 191                  width of all fields, minus the sum of widths of the
 192                  non-variable fields, divided by the number of variable fields.
 193
 194         @see SetFieldsCount(), wxFrame::SetStatusWidths()
 195     */
 196     virtual void SetStatusWidths(int n, const int* widths_field);
 197 };
 198