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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: control.h | |
3 | // Purpose: wxControl class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef _WX_CONTROL_H_ | |
13 | #define _WX_CONTROL_H_ | |
14 | ||
15 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
16 | #pragma interface "control.h" | |
17 | #endif | |
18 | ||
19 | #include "wx/dynarray.h" | |
20 | ||
21 | // General item class | |
22 | class WXDLLEXPORT wxControl : public wxControlBase | |
23 | { | |
24 | public: | |
25 | wxControl() { } | |
26 | ||
27 | wxControl(wxWindow *parent, wxWindowID id, | |
28 | const wxPoint& pos = wxDefaultPosition, | |
29 | const wxSize& size = wxDefaultSize, long style = 0, | |
30 | const wxValidator& validator = wxDefaultValidator, | |
31 | const wxString& name = wxControlNameStr) | |
32 | { | |
33 | Create(parent, id, pos, size, style, validator, name); | |
34 | } | |
35 | ||
36 | bool Create(wxWindow *parent, wxWindowID id, | |
37 | const wxPoint& pos = wxDefaultPosition, | |
38 | const wxSize& size = wxDefaultSize, long style = 0, | |
39 | const wxValidator& validator = wxDefaultValidator, | |
40 | const wxString& name = wxControlNameStr); | |
41 | ||
42 | virtual ~wxControl(); | |
43 | ||
44 | // Simulates an event | |
45 | virtual void Command(wxCommandEvent& event) { ProcessCommand(event); } | |
46 | ||
47 | ||
48 | // implementation from now on | |
49 | // -------------------------- | |
50 | ||
51 | virtual wxVisualAttributes GetDefaultAttributes() const | |
52 | { | |
53 | return GetClassDefaultAttributes(GetWindowVariant()); | |
54 | } | |
55 | ||
56 | static wxVisualAttributes | |
57 | GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL); | |
58 | ||
59 | // Calls the callback and appropriate event handlers | |
60 | bool ProcessCommand(wxCommandEvent& event); | |
61 | ||
62 | // MSW-specific | |
63 | #ifdef __WIN95__ | |
64 | virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result); | |
65 | #endif // Win95 | |
66 | ||
67 | // For ownerdraw items | |
68 | virtual bool MSWOnDraw(WXDRAWITEMSTRUCT *WXUNUSED(item)) { return false; }; | |
69 | virtual bool MSWOnMeasure(WXMEASUREITEMSTRUCT *WXUNUSED(item)) { return false; }; | |
70 | ||
71 | const wxArrayLong& GetSubcontrols() const { return m_subControls; } | |
72 | ||
73 | protected: | |
74 | // choose the default border for this window | |
75 | virtual wxBorder GetDefaultBorder() const; | |
76 | ||
77 | // return default best size (doesn't really make any sense, override this) | |
78 | virtual wxSize DoGetBestSize() const; | |
79 | ||
80 | // This is a helper for all wxControls made with UPDOWN native control. | |
81 | // In wxMSW it was only wxSpinCtrl derived from wxSpinButton but in | |
82 | // WinCE of Smartphones this happens also for native wxTextCtrl, | |
83 | // wxChoice and others. | |
84 | virtual wxSize GetBestSpinnerSize(const bool is_vertical) const; | |
85 | ||
86 | // create the control of the given Windows class: this is typically called | |
87 | // from Create() method of the derived class passing its label, pos and | |
88 | // size parameter (style parameter is not needed because m_windowStyle is | |
89 | // supposed to had been already set and so is used instead when this | |
90 | // function is called) | |
91 | bool MSWCreateControl(const wxChar *classname, | |
92 | const wxString& label, | |
93 | const wxPoint& pos, | |
94 | const wxSize& size); | |
95 | ||
96 | // NB: the method below is deprecated now, with MSWGetStyle() the method | |
97 | // above should be used instead! Once all the controls are updated to | |
98 | // implement MSWGetStyle() this version will disappear. | |
99 | // | |
100 | // create the control of the given class with the given style (combination | |
101 | // of WS_XXX flags, i.e. Windows style, not wxWidgets one), returns | |
102 | // false if creation failed | |
103 | // | |
104 | // All parameters except classname and style are optional, if the | |
105 | // size/position are not given, they should be set later with SetSize() | |
106 | // and, label (the title of the window), of course, is left empty. The | |
107 | // extended style is determined from the style and the app 3D settings | |
108 | // automatically if it's not specified explicitly. | |
109 | bool MSWCreateControl(const wxChar *classname, | |
110 | WXDWORD style, | |
111 | const wxPoint& pos = wxDefaultPosition, | |
112 | const wxSize& size = wxDefaultSize, | |
113 | const wxString& label = wxEmptyString, | |
114 | WXDWORD exstyle = (WXDWORD)-1); | |
115 | ||
116 | // default style for the control include WS_TABSTOP if it AcceptsFocus() | |
117 | virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const; | |
118 | ||
119 | // default handling of WM_CTLCOLORxxx | |
120 | virtual WXHBRUSH MSWControlColor(WXHDC pDC); | |
121 | ||
122 | // call this from the derived class MSWControlColor() if you want to show | |
123 | // the control greyed out (and opaque) | |
124 | WXHBRUSH MSWControlColorDisabled(WXHDC pDC); | |
125 | ||
126 | // call this from the derived class MSWControlColor() if you want to always | |
127 | // paint the background (as all opaque controls do) | |
128 | WXHBRUSH MSWControlColorSolid(WXHDC pDC) | |
129 | { | |
130 | return DoMSWControlColor(pDC, GetBackgroundColour()); | |
131 | } | |
132 | ||
133 | // common part of the 3 functions above: pass wxNullColour to use the | |
134 | // appropriate background colour (meaning ours or our parents) or a fixed | |
135 | // one | |
136 | virtual WXHBRUSH DoMSWControlColor(WXHDC pDC, wxColour colBg); | |
137 | ||
138 | // another WM_CTLCOLOR-related function: override this to return the brush | |
139 | // which should be used to paint the control background by default | |
140 | // | |
141 | // for most controls, the default behaviour of returning 0 and letting the | |
142 | // system do it is correct, but for some -- e.g. checkboxes -- we actually | |
143 | // have to return transparent brush from here to prevent the system from | |
144 | // overwriting background with solid colour | |
145 | virtual WXHBRUSH MSWGetDefaultBgBrush() { return 0; } | |
146 | ||
147 | // this is a helper for the derived class GetClassDefaultAttributes() | |
148 | // implementation: it returns the right colours for the classes which | |
149 | // contain something else (e.g. wxListBox, wxTextCtrl, ...) instead of | |
150 | // being simple controls (such as wxButton, wxCheckBox, ...) | |
151 | static wxVisualAttributes | |
152 | GetCompositeControlsDefaultAttributes(wxWindowVariant variant); | |
153 | ||
154 | // for controls like radiobuttons which are really composite this array | |
155 | // holds the ids (not HWNDs!) of the sub controls | |
156 | wxArrayLong m_subControls; | |
157 | ||
158 | private: | |
159 | DECLARE_DYNAMIC_CLASS_NO_COPY(wxControl) | |
160 | }; | |
161 | ||
162 | #endif // _WX_CONTROL_H_ |