fixed (rare but fatal) bug in wxWindowDisabler
[wxWidgets.git] / src / generic / statusbr.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: generic/statusbr.cpp
3 // Purpose: wxStatusBarGeneric class implementation
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart and Markus Holzem
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifdef __GNUG__
13 #pragma implementation "statusbr.h"
14 #endif
15
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
18
19 #ifdef __BORLANDC__
20 #pragma hdrstop
21 #endif
22
23 //#if !defined(__WIN32__) || !wxUSE_NATIVE_STATUSBAR
24
25 #ifndef WX_PRECOMP
26 #include "wx/setup.h"
27 #include "wx/frame.h"
28 #include "wx/settings.h"
29 #include "wx/dcclient.h"
30 #endif
31
32 #include "wx/statusbr.h"
33
34 // with wxUSE_NATIVE_STATUSBAR it is not included from wx/statusbr.h
35 #include "wx/generic/statusbr.h"
36
37 IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
38
39 #if !defined(__WIN32__) || !wxUSE_NATIVE_STATUSBAR
40 IMPLEMENT_DYNAMIC_CLASS(wxStatusBar, wxStatusBarGeneric)
41 #endif // Win32 && wxUSE_NATIVE_STATUSBAR
42
43 BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
44 EVT_PAINT(wxStatusBarGeneric::OnPaint)
45 EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
46 END_EVENT_TABLE()
47
48 // Default status border dimensions
49 #define wxTHICK_LINE_BORDER 2
50 #define wxTHICK_LINE_WIDTH 1
51
52 wxStatusBarGeneric::wxStatusBarGeneric()
53 {
54 m_statusWidths = (int *) NULL;
55 m_statusStrings = (wxString *) NULL;
56 m_nFields = 0;
57 m_borderX = wxTHICK_LINE_BORDER;
58 m_borderY = wxTHICK_LINE_BORDER;
59 }
60
61 wxStatusBarGeneric::~wxStatusBarGeneric()
62 {
63 # ifdef __WXMSW__
64 SetFont(wxNullFont);
65 # endif // MSW
66
67 if ( m_statusWidths )
68 delete[] m_statusWidths;
69 if ( m_statusStrings )
70 delete[] m_statusStrings;
71 }
72
73 bool wxStatusBarGeneric::Create(wxWindow *parent,
74 wxWindowID id,
75 long style,
76 const wxString& name)
77 {
78 m_statusWidths = (int *) NULL;
79 m_statusStrings = (wxString *) NULL;
80 m_nFields = 0;
81 m_borderX = wxTHICK_LINE_BORDER;
82 m_borderY = wxTHICK_LINE_BORDER;
83
84 bool success = wxWindow::Create(parent, id,
85 wxDefaultPosition, wxDefaultSize,
86 style | wxTAB_TRAVERSAL, name);
87
88 // Don't wish this to be found as a child
89 #ifndef __WXMAC__
90 parent->GetChildren().DeleteObject(this);
91 #endif
92 InitColours();
93
94 SetFont(m_defaultStatusBarFont);
95
96 return success;
97 }
98
99 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
100 {
101 if ( number != m_nFields )
102 {
103 m_nFields = number;
104
105 delete[] m_statusStrings;
106 m_statusStrings = new wxString[number];
107
108 #if 0 // VZ: what is this for?
109 int i;
110 for (i = 0; i < number; i++)
111 m_statusStrings[i] = "";
112 #endif
113 }
114
115 SetStatusWidths(number, widths);
116 }
117
118 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
119 {
120 wxCHECK_RET( (number >= 0) && (number < m_nFields),
121 _T("invalid status bar field index") );
122
123 m_statusStrings[number] = text;
124
125 Refresh();
126 }
127
128 wxString wxStatusBarGeneric::GetStatusText(int n) const
129 {
130 wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
131 _T("invalid status bar field index") );
132
133 return m_statusStrings[n];
134 }
135
136 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
137 {
138 // only set status widths, when n == number of statuswindows
139 wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
140
141 // delete the old widths in any case - this function may be used to reset
142 // the widths to the default (all equal)
143 delete [] m_statusWidths;
144
145 if ( !widths_field )
146 {
147 // not an error, see the comment above
148 m_statusWidths = (int *)NULL;
149
150 return;
151 }
152
153 int i;
154
155 // VZ: this doesn't do anything as is_variable is unused later
156 #if 0
157 // when one window (minimum) is variable (width <= 0)
158 bool is_variable = FALSE;
159 for (i = 0; i < m_nFields; i++)
160 {
161 if (widths_field[i] <= 0)
162 is_variable = TRUE;
163 }
164 #endif // 0
165
166 // set widths
167 m_statusWidths = new int[n];
168 for (i = 0; i < m_nFields; i++)
169 {
170 m_statusWidths[i] = widths_field[i];
171 }
172 }
173
174 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
175 {
176 wxPaintDC dc(this);
177
178 int i;
179 if ( GetFont().Ok() )
180 dc.SetFont(GetFont());
181 dc.SetBackgroundMode(wxTRANSPARENT);
182
183 for ( i = 0; i < m_nFields; i ++ )
184 DrawField(dc, i);
185
186 # ifdef __WXMSW__
187 dc.SetFont(wxNullFont);
188 # endif // MSW
189 }
190
191 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
192 {
193 int leftMargin = 2;
194
195 wxRect rect;
196 GetFieldRect(i, rect);
197
198 wxString text(GetStatusText(i));
199
200 long x, y;
201
202 dc.GetTextExtent(text, &x, &y);
203
204 int xpos = rect.x + leftMargin;
205 int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
206
207 #if defined( __WXGTK__ ) || defined(__WXMAC__)
208 xpos++;
209 ypos++;
210 #endif
211
212 dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
213
214 dc.DrawText(text, xpos, ypos);
215
216 dc.DestroyClippingRegion();
217 }
218
219 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
220 {
221 wxRect rect;
222 GetFieldRect(i, rect);
223
224 // Draw border
225 // Have grey background, plus 3-d border -
226 // One black rectangle.
227 // Inside this, left and top sides - dark grey. Bottom and right -
228 // white.
229
230 dc.SetPen(m_hilightPen);
231
232 // Right and bottom white lines
233 dc.DrawLine(rect.x + rect.width, rect.y,
234 rect.x + rect.width, rect.y + rect.height);
235 dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
236 rect.x, rect.y + rect.height);
237
238 dc.SetPen(m_mediumShadowPen);
239
240 // Left and top grey lines
241 dc.DrawLine(rect.x, rect.y + rect.height,
242 rect.x, rect.y);
243 dc.DrawLine(rect.x, rect.y,
244 rect.x + rect.width, rect.y);
245
246 DrawFieldText(dc, i);
247 }
248
249 // Get the position and size of the field's internal bounding rectangle
250 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
251 {
252 wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
253 _T("invalid status bar field index") );
254
255 int width, height;
256 GetClientSize(&width, &height);
257
258 int i;
259 int sum_of_nonvar = 0;
260 int num_of_var = 0;
261 bool do_same_width = FALSE;
262
263 int fieldWidth = 0;
264 int fieldPosition = 0;
265
266 if (m_statusWidths)
267 {
268 // if sum(not variable Windows) > c_width - (20 points per variable_window)
269 // then do_same_width = TRUE;
270 for (i = 0; i < m_nFields; i++)
271 {
272 if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
273 else num_of_var++;
274 }
275 if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
276 }
277 else do_same_width = TRUE;
278 if (do_same_width)
279 {
280 for (i = 0; i < m_nFields; i++)
281 {
282 fieldWidth = (int)(width/m_nFields);
283 fieldPosition = i*fieldWidth;
284 if ( i == n )
285 break;
286 }
287 }
288 else // no_same_width
289 {
290 int *tempwidth = new int[m_nFields];
291 int temppos = 0;
292 for (i = 0; i < m_nFields; i++)
293 {
294 if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
295 else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
296 }
297 for (i = 0; i < m_nFields; i++)
298 {
299 fieldWidth = tempwidth[i];
300 fieldPosition = temppos;
301
302 temppos += tempwidth[i];
303
304 if ( i == n )
305 break;
306 }
307 delete [] tempwidth;
308 }
309
310 rect.x = fieldPosition + wxTHICK_LINE_BORDER;
311 rect.y = wxTHICK_LINE_BORDER;
312
313 rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
314 rect.height = height - 2 * wxTHICK_LINE_BORDER ;
315
316 return TRUE;
317 }
318
319 // Initialize colours
320 void wxStatusBarGeneric::InitColours()
321 {
322 // Shadow colours
323 #if defined(__WIN95__)
324 wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
325 m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
326
327 wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
328 m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
329 #else
330 m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
331 m_hilightPen = wxPen("WHITE", 1, wxSOLID);
332 #endif
333
334 m_defaultStatusBarFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
335 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
336 }
337
338 // Responds to colour changes, and passes event on to children.
339 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
340 {
341 InitColours();
342 Refresh();
343
344 // Propagate the event to the non-top-level children
345 wxWindow::OnSysColourChanged(event);
346 }
347
348 void wxStatusBarGeneric::SetMinHeight(int height)
349 {
350 // check that this min height is not less than minimal height for the
351 // current font
352 wxClientDC dc(this);
353 wxCoord y;
354 dc.GetTextExtent( _T("X"), NULL, &y );
355
356 if ( height > (11*y)/10 )
357 {
358 SetSize(-1, -1, -1, height + 2*m_borderY);
359 }
360 }
361
362 //#endif // Win32 && wxUSE_NATIVE_STATUSBAR