1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/stattext.cpp
3 // Purpose: wxStaticText
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 04/01/98
7 // Copyright: (c) Julian Smart
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 // For compilers that support precompilation, includes "wx.h".
12 #include "wx/wxprec.h"
13
14 #ifdef __BORLANDC__
15 #pragma hdrstop
16 #endif
17
18 #if wxUSE_STATTEXT
19
20 #include "wx/stattext.h"
21
22 #ifndef WX_PRECOMP
23 #include "wx/event.h"
24 #include "wx/app.h"
25 #include "wx/brush.h"
26 #include "wx/dcclient.h"
27 #include "wx/settings.h"
28 #endif
29
30 #include "wx/msw/private.h"
31
Create(wxWindow * parent,wxWindowID id,const wxString & label,const wxPoint & pos,const wxSize & size,long style,const wxString & name)32 bool wxStaticText::Create(wxWindow *parent,
33 wxWindowID id,
34 const wxString& label,
35 const wxPoint& pos,
36 const wxSize& size,
37 long style,
38 const wxString& name)
39 {
40 if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
41 return false;
42
43 if ( !MSWCreateControl(wxT("STATIC"), wxEmptyString, pos, size) )
44 return false;
45
46 // we set the label here and not through MSWCreateControl() because we
47 // need to do many operation on it for ellipsization&markup support
48 SetLabel(label);
49
50 // as we didn't pass the correct label to MSWCreateControl(), it didn't set
51 // the initial size correctly -- do it now
52 InvalidateBestSize();
53 SetInitialSize(size);
54
55 // NOTE: if the label contains ampersand characters which are interpreted as
56 // accelerators, they will be rendered (at least on WinXP) only if the
57 // static text is placed inside a window class which correctly handles
58 // focusing by TAB traversal (e.g. wxPanel).
59
60 return true;
61 }
62
MSWGetStyle(long style,WXDWORD * exstyle) const63 WXDWORD wxStaticText::MSWGetStyle(long style, WXDWORD *exstyle) const
64 {
65 WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
66
67 // translate the alignment flags to the Windows ones
68 //
69 // note that both wxALIGN_LEFT and SS_LEFT are equal to 0 so we shouldn't
70 // test for them using & operator
71 if ( style & wxALIGN_CENTRE_HORIZONTAL )
72 msStyle |= SS_CENTER;
73 else if ( style & wxALIGN_RIGHT )
74 msStyle |= SS_RIGHT;
75 else
76 msStyle |= SS_LEFT;
77
78 #ifdef SS_ENDELLIPSIS
79 // this style is necessary to receive mouse events
80 // Win NT and later have the SS_ENDELLIPSIS style which is useful to us:
81 if (wxGetOsVersion() == wxOS_WINDOWS_NT)
82 {
83 // for now, add the SS_ENDELLIPSIS style if wxST_ELLIPSIZE_END is given;
84 // we may need to remove it later in ::SetLabel() if the given label
85 // has newlines
86 if ( style & wxST_ELLIPSIZE_END )
87 msStyle |= SS_ENDELLIPSIS;
88 }
89 #endif // SS_ENDELLIPSIS
90
91 msStyle |= SS_NOTIFY;
92
93 return msStyle;
94 }
95
DoGetBestClientSize() const96 wxSize wxStaticText::DoGetBestClientSize() const
97 {
98 wxClientDC dc(const_cast<wxStaticText *>(this));
99 wxFont font(GetFont());
100 if (!font.IsOk())
101 font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
102
103 dc.SetFont(font);
104
105 wxCoord widthTextMax, heightTextTotal;
106 dc.GetMultiLineTextExtent(GetLabelText(), &widthTextMax, &heightTextTotal);
107
108 #ifdef __WXWINCE__
109 if ( widthTextMax )
110 widthTextMax += 2;
111 #endif // __WXWINCE__
112
113 // This extra pixel is a hack we use to ensure that a wxStaticText
114 // vertically centered around the same position as a wxTextCtrl shows its
115 // text on exactly the same baseline. It is not clear why is this needed
116 // nor even whether this works in all cases, but it does work, at least
117 // with the default fonts, under Windows XP, 7 and 8, so just use it for
118 // now.
119 //
120 // In the future we really ought to provide a way for each of the controls
121 // to provide information about the position of the baseline for the text
122 // it shows and use this information in the sizer code when centering the
123 // controls vertically, otherwise we simply can't ensure that the text is
124 // always on the same line, e.g. even with this hack wxComboBox text is
125 // still not aligned to the same position.
126 heightTextTotal += 1;
127
128 return wxSize(widthTextMax, heightTextTotal);
129 }
130
DoSetSize(int x,int y,int w,int h,int sizeFlags)131 void wxStaticText::DoSetSize(int x, int y, int w, int h, int sizeFlags)
132 {
133 // note: we first need to set the size and _then_ call UpdateLabel
134 wxStaticTextBase::DoSetSize(x, y, w, h, sizeFlags);
135
136 #ifdef SS_ENDELLIPSIS
137 // do we need to ellipsize the contents?
138 long styleReal = ::GetWindowLong(GetHwnd(), GWL_STYLE);
139 if ( !(styleReal & SS_ENDELLIPSIS) )
140 {
141 // we don't have SS_ENDELLIPSIS style:
142 // we need to (eventually) do ellipsization ourselves
143 UpdateLabel();
144 }
145 //else: we don't or the OS will do it for us
146 #endif // SS_ENDELLIPSIS
147
148 // we need to refresh the window after changing its size as the standard
149 // control doesn't always update itself properly
150 Refresh();
151 }
152
SetLabel(const wxString & label)153 void wxStaticText::SetLabel(const wxString& label)
154 {
155 #ifdef SS_ENDELLIPSIS
156 long styleReal = ::GetWindowLong(GetHwnd(), GWL_STYLE);
157 if ( HasFlag(wxST_ELLIPSIZE_END) &&
158 wxGetOsVersion() == wxOS_WINDOWS_NT )
159 {
160 // adding SS_ENDELLIPSIS or SS_ENDELLIPSIS "disables" the correct
161 // newline handling in static texts: the newlines in the labels are
162 // shown as square. Thus we don't use it even on newer OS when
163 // the static label contains a newline.
164 if ( label.Contains(wxT('\n')) )
165 styleReal &= ~SS_ENDELLIPSIS;
166 else
167 styleReal |= SS_ENDELLIPSIS;
168
169 ::SetWindowLong(GetHwnd(), GWL_STYLE, styleReal);
170 }
171 else // style not supported natively
172 {
173 styleReal &= ~SS_ENDELLIPSIS;
174 ::SetWindowLong(GetHwnd(), GWL_STYLE, styleReal);
175 }
176 #endif // SS_ENDELLIPSIS
177
178 // save the label in m_labelOrig with both the markup (if any) and
179 // the mnemonics characters (if any)
180 m_labelOrig = label;
181
182 #ifdef SS_ENDELLIPSIS
183 if ( styleReal & SS_ENDELLIPSIS )
184 DoSetLabel(GetLabel());
185 else
186 #endif // SS_ENDELLIPSIS
187 DoSetLabel(GetEllipsizedLabel());
188
189 // adjust the size of the window to fit to the label unless autoresizing is
190 // disabled
191 if ( !HasFlag(wxST_NO_AUTORESIZE) &&
192 !IsEllipsized() ) // if ellipsize is ON, then we don't want to get resized!
193 {
194 InvalidateBestSize();
195 DoSetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, wxDefaultCoord,
196 wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
197 }
198 }
199
SetFont(const wxFont & font)200 bool wxStaticText::SetFont(const wxFont& font)
201 {
202 bool ret = wxControl::SetFont(font);
203
204 // adjust the size of the window to fit to the label unless autoresizing is
205 // disabled
206 if ( !HasFlag(wxST_NO_AUTORESIZE) )
207 {
208 InvalidateBestSize();
209 DoSetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, wxDefaultCoord,
210 wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
211 }
212
213 return ret;
214 }
215
216 // for wxST_ELLIPSIZE_* support:
217
DoGetLabel() const218 wxString wxStaticText::DoGetLabel() const
219 {
220 return wxGetWindowText(GetHwnd());
221 }
222
DoSetLabel(const wxString & str)223 void wxStaticText::DoSetLabel(const wxString& str)
224 {
225 SetWindowText(GetHwnd(), str.c_str());
226 }
227
228
229 #endif // wxUSE_STATTEXT
230