interface/wx/statusbr.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statusbr.h
   3 // Purpose:     interface of wxStatusBar
   4 // Author:      wxWidgets team
   5 // Licence:     wxWindows licence
   6 /////////////////////////////////////////////////////////////////////////////
   7
   8 // wxStatusBar styles
   9 #define wxSTB_SIZEGRIP         0x0010
  10 #define wxSTB_SHOW_TIPS        0x0020
  11
  12 #define wxSTB_ELLIPSIZE_START   0x0040
  13 #define wxSTB_ELLIPSIZE_MIDDLE  0x0080
  14 #define wxSTB_ELLIPSIZE_END     0x0100
  15
  16 #define wxSTB_DEFAULT_STYLE    (wxSTB_SIZEGRIP|wxSTB_ELLIPSIZE_END|wxSTB_SHOW_TIPS|wxFULL_REPAINT_ON_RESIZE)
  17
  18 // style flags for wxStatusBar fields
  19 #define wxSB_NORMAL    0x0000
  20 #define wxSB_FLAT      0x0001
  21 #define wxSB_RAISED    0x0002
  22 #define wxSB_SUNKEN    0x0003
  23
  24
  25 /**
  26     @class wxStatusBarPane
  27
  28     A status bar pane data container used by wxStatusBar.
  29
  30     @library{wxcore}
  31     @category{data}
  32
  33     @see wxStatusBar
  34 */
  35 class wxStatusBarPane
  36 {
  37 public:
  38     /**
  39         Constructs the pane with the given @a style and @a width.
  40     */
  41     wxStatusBarPane(int style = wxSB_NORMAL, int width = 0);
  42
  43     /**
  44         Returns the pane width; it maybe negative, indicating a variable-width field.
  45     */
  46     int GetWidth() const;
  47
  48     /**
  49         Returns the pane style.
  50     */
  51     int GetStyle() const;
  52
  53     /**
  54         Returns the text currently shown in this pane.
  55      */
  56     wxString GetText() const;
  57 };
  58
  59 /**
  60     @class wxStatusBar
  61
  62     A status bar is a narrow window that can be placed along the bottom of a frame
  63     to give small amounts of status information. It can contain one or more fields,
  64     one or more of which can be variable length according to the size of the window.
  65
  66     wxStatusBar also maintains an independent stack of status texts for each field
  67     (see PushStatusText() and PopStatusText()).
  68
  69     Note that in wxStatusBar context, the terms @e pane and @e field are synonyms.
  70
  71     @beginStyleTable
  72     @style{wxSTB_SIZEGRIP}
  73         Displays a gripper at the right-hand side of the status bar which can be used
  74         to resize the parent window.
  75     @style{wxSTB_SHOW_TIPS}
  76         Displays tooltips for those panes whose status text has been ellipsized/truncated
  77         because the status text doesn't fit the pane width.
  78         Note that this style has effect only on wxGTK (with GTK+ >= 2.12) currently.
  79     @style{wxSTB_ELLIPSIZE_START}
  80         Replace the beginning of the status texts with an ellipsis when the status text
  81         widths exceed the status bar pane's widths (uses wxControl::Ellipsize).
  82     @style{wxSTB_ELLIPSIZE_MIDDLE}
  83         Replace the middle of the status texts with an ellipsis when the status text
  84         widths exceed the status bar pane's widths (uses wxControl::Ellipsize).
  85     @style{wxSTB_ELLIPSIZE_END}
  86         Replace the end of the status texts with an ellipsis when the status text
  87         widths exceed the status bar pane's widths (uses wxControl::Ellipsize).
  88     @style{wxSTB_DEFAULT_STYLE}
  89         The default style: includes
  90         @c wxSTB_SIZEGRIP|wxSTB_SHOW_TIPS|wxSTB_ELLIPSIZE_END|wxFULL_REPAINT_ON_RESIZE.
  91     @endStyleTable
  92
  93     @remarks
  94     It is possible to create controls and other windows on the status bar.
  95     Position these windows from an OnSize() event handler.
  96
  97     @remarks
  98     Notice that only the first 127 characters of a string will be shown in
  99     status bar fields under pre-XP MSW systems (or even under later systems if
 100     a proper manifest indicating that the program uses version 6 of common
 101     controls library is not used). This is a limitation of the native control
 102     on these platforms.
 103
 104     @library{wxcore}
 105     @category{miscwnd}
 106
 107     @see wxStatusBarPane, wxFrame, @ref page_samples_statbar
 108 */
 109 class wxStatusBar : public wxControl
 110 {
 111 public:
 112     /**
 113         Default ctor.
 114     */
 115     wxStatusBar();
 116
 117     /**
 118         Constructor, creating the window.
 119
 120         @param parent
 121             The window parent, usually a frame.
 122         @param id
 123             The window identifier.
 124             It may take a value of -1 to indicate a default value.
 125         @param style
 126             The window style. See wxStatusBar.
 127         @param name
 128             The name of the window. This parameter is used to associate a name with the
 129             item, allowing the application user to set Motif resource values for
 130             individual windows.
 131
 132         @see Create()
 133     */
 134     wxStatusBar(wxWindow* parent, wxWindowID id = wxID_ANY,
 135                 long style = wxSTB_DEFAULT_STYLE,
 136                 const wxString& name = wxStatusBarNameStr);
 137
 138     /**
 139         Destructor.
 140     */
 141     virtual ~wxStatusBar();
 142
 143     /**
 144         Creates the window, for two-step construction.
 145         See wxStatusBar() for details.
 146     */
 147     bool Create(wxWindow* parent, wxWindowID id = wxID_ANY,
 148                 long style = wxSTB_DEFAULT_STYLE,
 149                 const wxString& name = wxStatusBarNameStr);
 150
 151     /**
 152         Returns the size and position of a field's internal bounding rectangle.
 153
 154         @param i
 155             The field in question.
 156         @param rect
 157             The rectangle values are placed in this variable.
 158
 159         @return @true if the field index is valid, @false otherwise.
 160
 161         @beginWxPerlOnly
 162         In wxPerl this function returns a @c Wx::Rect if the field
 163         index is valid, @c undef otherwise.
 164         @endWxPerlOnly
 165
 166         @see wxRect
 167     */
 168     virtual bool GetFieldRect(int i, wxRect& rect) const;
 169
 170     /**
 171         Returns the number of fields in the status bar.
 172     */
 173     int GetFieldsCount() const;
 174
 175     /**
 176         Returns the wxStatusBarPane representing the @a n-th field.
 177     */
 178     const wxStatusBarPane& GetField(int n) const;
 179
 180     /**
 181         Returns the horizontal and vertical borders used when rendering the field
 182         text inside the field area.
 183
 184         Note that the rect returned by GetFieldRect() already accounts for the
 185         presence of horizontal and vertical border returned by this function.
 186     */
 187     wxSize GetBorders() const;
 188
 189     /**
 190         Returns the string associated with a status bar field.
 191
 192         @param i
 193             The number of the status field to retrieve, starting from zero.
 194
 195         @return The status field string if the field is valid, otherwise the
 196                 empty string.
 197
 198         @see SetStatusText()
 199     */
 200     virtual wxString GetStatusText(int i = 0) const;
 201
 202     /**
 203         Returns the width of the @a n-th field.
 204
 205         See wxStatusBarPane::GetWidth() for more info.
 206     */
 207     int GetStatusWidth(int n) const;
 208
 209     /**
 210         Returns the style of the @a n-th field.
 211
 212         See wxStatusBarPane::GetStyle() for more info.
 213     */
 214     int GetStatusStyle(int n) const;
 215
 216     /**
 217         Restores the text to the value it had before the last call to
 218         PushStatusText().
 219
 220         Notice that if SetStatusText() had been called in the meanwhile,
 221         PopStatusText() will not change the text, i.e. it does not override
 222         explicit changes to status text but only restores the saved text if it
 223         hadn't been changed since.
 224
 225         @see PushStatusText()
 226     */
 227     void PopStatusText(int field = 0);
 228
 229     /**
 230         Saves the current field text in a per-field stack, and sets the field
 231         text to the string passed as argument.
 232
 233         @see PopStatusText()
 234     */
 235     void PushStatusText(const wxString& string, int field = 0);
 236
 237     /**
 238         Sets the number of fields, and optionally the field widths.
 239
 240         @param number
 241             The number of fields. If this is greater than the previous number,
 242             then new fields with empty strings will be added to the status bar.
 243         @param widths
 244             An array of n integers interpreted in the same way as
 245             in SetStatusWidths().
 246
 247         @beginWxPerlOnly
 248         In wxPerl this function accepts only the @a number parameter.
 249         Use SetStatusWidths to set the field widths.
 250         @endWxPerlOnly
 251     */
 252     virtual void SetFieldsCount(int number = 1, const int* widths = NULL);
 253
 254     /**
 255         Sets the minimal possible height for the status bar.
 256
 257         The real height may be bigger than the height specified here depending
 258         on the size of the font used by the status bar.
 259     */
 260     virtual void SetMinHeight(int height);
 261
 262     /**
 263         Sets the styles of the fields in the status line which can make fields appear
 264         flat or raised instead of the standard sunken 3D border.
 265
 266         @param n
 267             The number of fields in the status bar. Must be equal to the
 268             number passed to SetFieldsCount() the last time it was called.
 269         @param styles
 270             Contains an array of @a n integers with the styles for each field.
 271             There are four possible styles:
 272             - @c wxSB_NORMAL (default): The field appears with the default native border.
 273             - @c wxSB_FLAT: No border is painted around the field so that it appears flat.
 274             - @c wxSB_RAISED: A raised 3D border is painted around the field.
 275             - @c wxSB_SUNKEN: A sunken 3D border is painted around the field
 276               (this style is new since wxWidgets 2.9.5).
 277     */
 278     virtual void SetStatusStyles(int n, const int* styles);
 279
 280     /**
 281         Sets the status text for the @a i-th field.
 282
 283         The given text will replace the current text.
 284
 285         Note that if PushStatusText() had been called before the new text will
 286         also replace the last saved value to make sure that the next call to
 287         PopStatusText() doesn't restore the old value, which was overwritten by
 288         the call to this function.
 289
 290         @param text
 291             The text to be set. Use an empty string ("") to clear the field.
 292         @param i
 293             The field to set, starting from zero.
 294
 295         @see GetStatusText(), wxFrame::SetStatusText
 296     */
 297     virtual void SetStatusText(const wxString& text, int i = 0);
 298
 299     /**
 300         Sets the widths of the fields in the status line. There are two types of
 301         fields: @b fixed widths and @b variable width fields. For the fixed width fields
 302         you should specify their (constant) width in pixels. For the variable width
 303         fields, specify a negative number which indicates how the field should expand:
 304         the space left for all variable width fields is divided between them according
 305         to the absolute value of this number. A variable width field with width of -2
 306         gets twice as much of it as a field with width -1 and so on.
 307
 308         For example, to create one fixed width field of width 100 in the right part of
 309         the status bar and two more fields which get 66% and 33% of the remaining
 310         space correspondingly, you should use an array containing -2, -1 and 100.
 311
 312         @param n
 313             The number of fields in the status bar. Must be equal to the
 314             number passed to SetFieldsCount() the last time it was called.
 315         @param widths_field
 316             Contains an array of n integers, each of which is either an
 317             absolute status field width in pixels if positive or indicates a
 318             variable width field if negative.
 319             The special value @NULL means that all fields should get the same width.
 320
 321         @remarks The widths of the variable fields are calculated from the total
 322                  width of all fields, minus the sum of widths of the
 323                  non-variable fields, divided by the number of variable fields.
 324
 325         @beginWxPerlOnly
 326         In wxPerl this method takes as parameters the field widths.
 327         @endWxPerlOnly
 328
 329         @see SetFieldsCount(), wxFrame::SetStatusWidths()
 330     */
 331     virtual void SetStatusWidths(int n, const int* widths_field);
 332 };
 333