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git.saurik.com Git - wxWidgets.git/blob - interface/wx/frame.h
1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: interface of wxFrame
4 // Author: wxWidgets team
6 // Licence: wxWindows license
7 /////////////////////////////////////////////////////////////////////////////
12 A frame is a window whose size and position can (usually) be changed by the user.
14 It usually has thick borders and a title bar, and can optionally contain a
15 menu bar, toolbar and status bar. A frame can contain any window that is not
18 A frame that has a status bar and toolbar, created via the CreateStatusBar() and
19 CreateToolBar() functions, manages these windows and adjusts the value returned
20 by GetClientSize() to reflect the remaining size available to application windows.
22 @remarks An application should normally define an wxCloseEvent handler for the
23 frame to respond to system close events, for example so that related
24 data and subwindows can be cleaned up.
27 @section frame_defaultevent Default event processing
29 wxFrame processes the following events:
31 @li @c wxEVT_SIZE: if the frame has exactly one child window, not counting the
32 status and toolbar, this child is resized to take the entire frame client area.
33 If two or more windows are present, they should be laid out explicitly either
34 by manually handling wxEVT_SIZE or using sizers;
35 @li @c wxEVT_MENU_HIGHLIGHT: the default implementation displays the help string
36 associated with the selected item in the first pane of the status bar, if there is one.
41 wxFrame supports the following styles:
44 @style{wxDEFAULT_FRAME_STYLE}
45 Defined as wxMINIMIZE_BOX | wxMAXIMIZE_BOX | wxRESIZE_BORDER |
46 wxSYSTEM_MENU | wxCAPTION | wxCLOSE_BOX | wxCLIP_CHILDREN.
48 Display the frame iconized (minimized). Windows only.
50 Puts a caption on the frame.
52 Identical to wxICONIZE. Windows only.
53 @style{wxMINIMIZE_BOX}
54 Displays a minimize box on the frame.
56 Displays the frame maximized. Windows only.
57 @style{wxMAXIMIZE_BOX}
58 Displays a maximize box on the frame.
60 Displays a close box on the frame.
62 Stay on top of all other windows, see also wxFRAME_FLOAT_ON_PARENT.
64 Displays a system menu.
65 @style{wxRESIZE_BORDER}
66 Displays a resizeable border around the window.
67 @style{wxFRAME_TOOL_WINDOW}
68 Causes a frame with a small titlebar to be created; the frame does
69 not appear in the taskbar under Windows or GTK+.
70 @style{wxFRAME_NO_TASKBAR}
71 Creates an otherwise normal frame but it does not appear in the
72 taskbar under Windows or GTK+ (note that it will minimize to the
73 desktop window under Windows which may seem strange to the users
74 and thus it might be better to use this style only without
75 wxMINIMIZE_BOX style). In wxGTK, the flag is respected only if GTK+
76 is at least version 2.2 and the window manager supports
77 _NET_WM_STATE_SKIP_TASKBAR hint. Has no effect under other platforms.
78 @style{wxFRAME_FLOAT_ON_PARENT}
79 The frame will always be on top of its parent (unlike wxSTAY_ON_TOP).
80 A frame created with this style must have a non-@NULL parent.
81 @style{wxFRAME_SHAPED}
82 Windows with this style are allowed to have their shape changed
83 with the SetShape() method.
86 The default frame style is for normal, resizeable frames.
87 To create a frame which can not be resized by user, you may use the following
88 combination of styles:
91 wxDEFAULT_FRAME_STYLE & ~(wxRESIZE_BORDER | wxMAXIMIZE_BOX)
94 See also the @ref overview_windowstyles.
97 @style{wxFRAME_EX_CONTEXTHELP}
98 Under Windows, puts a query button on the caption. When pressed,
99 Windows will go into a context-sensitive help mode and wxWidgets
100 will send a wxEVT_HELP event if the user clicked on an application
101 window. Note that this is an extended style and must be set by
102 calling SetExtraStyle before Create is called (two-step
103 construction). You cannot use this style together with
104 wxMAXIMIZE_BOX or wxMINIMIZE_BOX, so you should use
105 wxDEFAULT_FRAME_STYLE ~ (wxMINIMIZE_BOX | wxMAXIMIZE_BOX) for the
106 frames having this style (the dialogs don't have a minimize or a
107 maximize box by default)
108 @style{wxFRAME_EX_METAL}
109 On Mac OS X, frames with this style will be shown with a metallic
110 look. This is an extra style.
114 @category{managedwnd}
116 @see wxMDIParentFrame, wxMDIChildFrame, wxMiniFrame, wxDialog
118 class wxFrame
: public wxTopLevelWindow
127 Constructor, creating the window.
130 The window parent. This may be @NULL. If it is non-@NULL, the frame will
131 always be displayed on top of the parent window on Windows.
133 The window identifier. It may take a value of -1 to indicate a default value.
135 The caption to be displayed on the frame's title bar.
137 The window position. The value wxDefaultPosition indicates a default position,
138 chosen by either the windowing system or wxWidgets, depending on platform.
140 The window size. The value wxDefaultSize indicates a default size, chosen by
141 either the windowing system or wxWidgets, depending on platform.
143 The window style. See wxFrame class description.
145 The name of the window. This parameter is used to associate a name with
146 the item, allowing the application user to set Motif resource values for
149 @remarks For Motif, MWM (the Motif Window Manager) should be running for
150 any window styles to work (otherwise all styles take effect).
154 wxFrame(wxWindow
* parent
, wxWindowID id
,
155 const wxString
& title
,
156 const wxPoint
& pos
= wxDefaultPosition
,
157 const wxSize
& size
= wxDefaultSize
,
158 long style
= wxDEFAULT_FRAME_STYLE
,
159 const wxString
& name
= wxFrameNameStr
);
162 Destructor. Destroys all child windows and menu bar if present.
167 Centres the frame on the display.
170 The parameter may be wxHORIZONTAL, wxVERTICAL or wxBOTH.
172 void Centre(int direction
= wxBOTH
);
175 Used in two-step frame construction.
176 See wxFrame() for further details.
178 bool Create(wxWindow
* parent
, wxWindowID id
, const wxString
& title
,
179 const wxPoint
& pos
= wxDefaultPosition
,
180 const wxSize
& size
= wxDefaultSize
,
181 long style
= wxDEFAULT_FRAME_STYLE
,
182 const wxString
& name
= wxFrameNameStr
);
185 Creates a status bar at the bottom of the frame.
188 The number of fields to create. Specify a
189 value greater than 1 to create a multi-field status bar.
191 The status bar style. See wxStatusBar for a list of valid styles.
193 The status bar window identifier. If -1, an identifier will be chosen
196 The status bar window name.
198 @return A pointer to the status bar if it was created successfully, @NULL
201 @remarks The width of the status bar is the whole width of the frame
202 (adjusted automatically when resizing), and the height
203 and text size are chosen by the host windowing system.
205 @see SetStatusText(), OnCreateStatusBar(), GetStatusBar()
207 virtual wxStatusBar
* CreateStatusBar(int number
= 1, long style
= wxST_SIZEGRIP
|wxFULL_REPAINT_ON_RESIZE
,
209 const wxString
& name
= wxStatusLineNameStr
);
212 Creates a toolbar at the top or left of the frame.
215 The toolbar style. See wxToolBar for a list of valid styles.
217 The toolbar window identifier. If -1, an identifier will be chosen
220 The toolbar window name.
222 @return A pointer to the toolbar if it was created successfully, @NULL
225 @remarks By default, the toolbar is an instance of wxToolBar (which is
226 defined to be a suitable toolbar class on each
227 platform, such as wxToolBar95). To use a different
228 class, override OnCreateToolBar().
229 When a toolbar has been created with this function, or made
230 known to the frame with wxFrame::SetToolBar, the frame will
231 manage the toolbar position and adjust the return value from
232 wxWindow::GetClientSize to reflect the available space for
234 Under Pocket PC, you should always use this function for creating
235 the toolbar to be managed by the frame, so that wxWidgets can
236 use a combined menubar and toolbar.
237 Where you manage your own toolbars, create a wxToolBar as usual.
239 @see CreateStatusBar(), OnCreateToolBar(), SetToolBar(), GetToolBar()
241 virtual wxToolBar
* CreateToolBar(long style
= wxBORDER_NONE
| wxTB_HORIZONTAL
,
242 wxWindowID id
= wxID_ANY
,
243 const wxString
& name
= wxToolBarNameStr
);
246 Returns the origin of the frame client area (in client coordinates).
247 It may be different from (0, 0) if the frame has a toolbar.
249 virtual wxPoint
GetClientAreaOrigin() const;
252 Returns a pointer to the menubar currently associated with the frame (if any).
254 @see SetMenuBar(), wxMenuBar, wxMenu
256 virtual wxMenuBar
* GetMenuBar() const;
259 Returns a pointer to the status bar currently associated with the frame
262 @see CreateStatusBar(), wxStatusBar
264 virtual wxStatusBar
* GetStatusBar() const;
267 Returns the status bar pane used to display menu and toolbar help.
269 @see SetStatusBarPane()
271 int GetStatusBarPane() const;
274 Returns a pointer to the toolbar currently associated with the frame (if any).
276 @see CreateToolBar(), wxToolBar, SetToolBar()
278 virtual wxToolBar
* GetToolBar() const;
281 Virtual function called when a status bar is requested by CreateStatusBar().
284 The number of fields to create.
286 The window style. See wxStatusBar for a list
289 The window identifier. If -1, an identifier will be chosen by
294 @return A status bar object.
296 @remarks An application can override this function to return a different
297 kind of status bar. The default implementation returns
298 an instance of wxStatusBar.
300 @see CreateStatusBar(), wxStatusBar.
302 virtual wxStatusBar
* OnCreateStatusBar(int number
, long style
,
304 const wxString
& name
);
307 Virtual function called when a toolbar is requested by CreateToolBar().
310 The toolbar style. See wxToolBar for a list
313 The toolbar window identifier. If -1, an identifier will be chosen by
316 The toolbar window name.
318 @return A toolbar object.
320 @remarks An application can override this function to return a different
321 kind of toolbar. The default implementation returns an
322 instance of wxToolBar.
324 @see CreateToolBar(), wxToolBar.
326 virtual wxToolBar
* OnCreateToolBar(long style
, wxWindowID id
,
327 const wxString
& name
);
330 Simulate a menu command.
333 The identifier for a menu item.
335 bool ProcessCommand(int id
);
338 Tells the frame to show the given menu bar.
341 The menu bar to associate with the frame.
343 @remarks If the frame is destroyed, the menu bar and its menus will be
344 destroyed also, so do not delete the menu bar
345 explicitly (except by resetting the frame's menu bar to
346 another frame or @NULL).
347 Under Windows, a size event is generated, so be sure to
348 initialize data members properly before calling SetMenuBar().
349 Note that on some platforms, it is not possible to call this
350 function twice for the same frame object.
352 @see GetMenuBar(), wxMenuBar, wxMenu.
354 virtual void SetMenuBar(wxMenuBar
* menuBar
);
357 Associates a status bar with the frame.
359 @see CreateStatusBar(), wxStatusBar, GetStatusBar()
361 virtual void SetStatusBar(wxStatusBar
* statusBar
);
364 Set the status bar pane used to display menu and toolbar help.
365 Using -1 disables help display.
367 void SetStatusBarPane(int n
);
370 Sets the status bar text and redraws the status bar.
373 The text for the status field.
375 The status field (starting from zero).
377 @remarks Use an empty string to clear the status bar.
379 @see CreateStatusBar(), wxStatusBar
381 virtual void SetStatusText(const wxString
& text
, int number
= 0);
384 Sets the widths of the fields in the status bar.
387 The number of fields in the status bar. It must be the
388 same used in CreateStatusBar.
390 Must contain an array of n integers, each of which is a status field width
391 in pixels. A value of -1 indicates that the field is variable width; at
392 least one field must be -1. You should delete this array after calling
395 @remarks The widths of the variable fields are calculated from the total
396 width of all fields, minus the sum of widths of the
397 non-variable fields, divided by the number of variable fields.
399 virtual void SetStatusWidths(int n
, const int* widths_field
);
402 Associates a toolbar with the frame.
404 virtual void SetToolBar(wxToolBar
* toolBar
);