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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: combobox.cpp | |
3 | // Purpose: wxComboBox class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart and Markus Holzem | |
c085e333 | 9 | // Licence: wxWindows licence |
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10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "combobox.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 | #ifndef WX_PRECOMP | |
24 | #include "wx/setup.h" | |
25 | #endif | |
26 | ||
47d67540 | 27 | #if wxUSE_COMBOBOX |
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28 | |
29 | #include "wx/combobox.h" | |
30 | #include "wx/clipbrd.h" | |
31 | #include "wx/msw/private.h" | |
32 | ||
33 | #if !USE_SHARED_LIBRARY | |
34 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl) | |
35 | #endif | |
36 | ||
debe6624 | 37 | bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) |
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38 | { |
39 | if (param == CBN_SELCHANGE) | |
40 | { | |
5de76427 | 41 | wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId); |
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42 | event.SetInt(GetSelection()); |
43 | event.SetEventObject(this); | |
44 | event.SetString(copystring(GetStringSelection())); | |
45 | ProcessCommand(event); | |
46 | delete[] event.GetString(); | |
47 | return TRUE; | |
48 | } | |
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49 | else if (param == CBN_EDITCHANGE) |
50 | { | |
51 | wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId); | |
52 | event.SetString(copystring(GetValue())); | |
088a95f5 | 53 | event.SetEventObject(this); |
5de76427 JS |
54 | ProcessCommand(event); |
55 | delete[] event.GetString(); | |
56 | return TRUE; | |
57 | } | |
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58 | else return FALSE; |
59 | } | |
60 | ||
debe6624 | 61 | bool wxComboBox::Create(wxWindow *parent, wxWindowID id, |
c085e333 VZ |
62 | const wxString& value, |
63 | const wxPoint& pos, | |
64 | const wxSize& size, | |
65 | int n, const wxString choices[], | |
66 | long style, | |
67 | const wxValidator& validator, | |
68 | const wxString& name) | |
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69 | { |
70 | SetName(name); | |
71 | SetValidator(validator); | |
72 | if (parent) parent->AddChild(this); | |
fd71308f JS |
73 | SetBackgroundColour(parent->GetBackgroundColour()) ; |
74 | SetForegroundColour(parent->GetForegroundColour()) ; | |
bbcdf8bc | 75 | m_noStrings = n; |
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76 | |
77 | m_windowStyle = style; | |
78 | ||
79 | if ( id == -1 ) | |
c085e333 | 80 | m_windowId = (int)NewControlId(); |
2bda0e17 | 81 | else |
c085e333 | 82 | m_windowId = id; |
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83 | |
84 | int x = pos.x; | |
85 | int y = pos.y; | |
86 | int width = size.x; | |
87 | int height = size.y; | |
88 | ||
c085e333 VZ |
89 | long msStyle = WS_CHILD | WS_HSCROLL | WS_VSCROLL | |
90 | WS_TABSTOP | WS_VISIBLE | CBS_NOINTEGRALHEIGHT; | |
91 | ||
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92 | if (m_windowStyle & wxCB_READONLY) |
93 | msStyle |= CBS_DROPDOWNLIST; | |
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94 | else if (m_windowStyle & wxCB_SIMPLE) |
95 | msStyle |= CBS_SIMPLE; // A list (shown always) and edit control | |
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96 | else |
97 | msStyle |= CBS_DROPDOWN; | |
98 | ||
99 | if (m_windowStyle & wxCB_SORT) | |
100 | msStyle |= CBS_SORT; | |
101 | ||
102 | bool want3D; | |
103 | WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; | |
104 | ||
105 | // Even with extended styles, need to combine with WS_BORDER | |
106 | // for them to look right. | |
c085e333 | 107 | if ( want3D || wxStyleHasBorder(m_windowStyle) ) |
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108 | msStyle |= WS_BORDER; |
109 | ||
c085e333 | 110 | m_hWnd = (WXHWND)::CreateWindowEx(exStyle, "COMBOBOX", NULL, |
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111 | msStyle, |
112 | 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId, | |
113 | wxGetInstance(), NULL); | |
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114 | |
115 | wxCHECK_MSG( m_hWnd, FALSE, "Failed to create combobox" ); | |
116 | ||
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117 | /* |
118 | #if CTL3D | |
119 | if (want3D) | |
120 | { | |
121 | Ctl3dSubclassCtl(wx_combo); | |
122 | m_useCtl3D = TRUE; | |
123 | } | |
124 | #endif | |
125 | */ | |
126 | ||
2bda0e17 | 127 | // Subclass again for purposes of dialog editing mode |
c085e333 | 128 | SubclassWin(m_hWnd); |
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129 | |
130 | SetFont(* parent->GetFont()); | |
131 | int i; | |
132 | for (i = 0; i < n; i++) | |
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133 | { |
134 | Append(choices[i]); | |
135 | } | |
136 | ||
137 | SetSelection(i); | |
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138 | |
139 | SetSize(x, y, width, height); | |
c085e333 VZ |
140 | if ( !value.IsEmpty() ) |
141 | { | |
142 | SetValue(value); | |
143 | } | |
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144 | |
145 | return TRUE; | |
146 | } | |
147 | ||
1c4a764c | 148 | wxString wxComboBox::GetValue() const |
2bda0e17 | 149 | { |
1c4a764c | 150 | return wxGetWindowText(GetHWND()); |
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151 | } |
152 | ||
153 | void wxComboBox::SetValue(const wxString& value) | |
154 | { | |
155 | // If newlines are denoted by just 10, must stick 13 in front. | |
156 | int singletons = 0; | |
157 | int len = value.Length(); | |
158 | int i; | |
159 | for (i = 0; i < len; i ++) | |
160 | { | |
161 | if ((i > 0) && (value[i] == 10) && (value[i-1] != 13)) | |
162 | singletons ++; | |
163 | } | |
164 | if (singletons > 0) | |
165 | { | |
166 | char *tmp = new char[len + singletons + 1]; | |
167 | int j = 0; | |
168 | for (i = 0; i < len; i ++) | |
169 | { | |
170 | if ((i > 0) && (value[i] == 10) && (value[i-1] != 13)) | |
171 | { | |
172 | tmp[j] = 13; | |
173 | j ++; | |
174 | } | |
175 | tmp[j] = value[i]; | |
176 | j ++; | |
177 | } | |
178 | tmp[j] = 0; | |
179 | SetWindowText((HWND) GetHWND(), tmp); | |
180 | delete[] tmp; | |
181 | } | |
182 | else | |
183 | SetWindowText((HWND) GetHWND(), (const char *)value); | |
184 | } | |
185 | ||
186 | // Clipboard operations | |
1c4a764c | 187 | void wxComboBox::Copy() |
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188 | { |
189 | HWND hWnd = (HWND) GetHWND(); | |
190 | SendMessage(hWnd, WM_COPY, 0, 0L); | |
191 | } | |
192 | ||
1c4a764c | 193 | void wxComboBox::Cut() |
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194 | { |
195 | HWND hWnd = (HWND) GetHWND(); | |
196 | SendMessage(hWnd, WM_CUT, 0, 0L); | |
197 | } | |
198 | ||
1c4a764c | 199 | void wxComboBox::Paste() |
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200 | { |
201 | HWND hWnd = (HWND) GetHWND(); | |
202 | SendMessage(hWnd, WM_PASTE, 0, 0L); | |
203 | } | |
204 | ||
debe6624 | 205 | void wxComboBox::SetEditable(bool editable) |
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206 | { |
207 | // Can't implement in MSW? | |
208 | // HWND hWnd = (HWND) GetHWND(); | |
209 | // SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); | |
210 | } | |
211 | ||
debe6624 | 212 | void wxComboBox::SetInsertionPoint(long pos) |
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213 | { |
214 | /* | |
215 | HWND hWnd = (HWND) GetHWND(); | |
216 | #ifdef __WIN32__ | |
217 | SendMessage(hWnd, EM_SETSEL, pos, pos); | |
218 | SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); | |
219 | #else | |
220 | SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos)); | |
221 | #endif | |
222 | char *nothing = ""; | |
223 | SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); | |
224 | */ | |
225 | } | |
226 | ||
1c4a764c | 227 | void wxComboBox::SetInsertionPointEnd() |
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228 | { |
229 | /* | |
230 | long pos = GetLastPosition(); | |
231 | SetInsertionPoint(pos); | |
232 | */ | |
233 | } | |
234 | ||
1c4a764c | 235 | long wxComboBox::GetInsertionPoint() const |
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236 | { |
237 | /* | |
238 | DWORD Pos=(DWORD)SendMessage((HWND) GetHWND(), EM_GETSEL, 0, 0L); | |
239 | return Pos&0xFFFF; | |
240 | */ | |
241 | return 0; | |
242 | } | |
243 | ||
1c4a764c | 244 | long wxComboBox::GetLastPosition() const |
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245 | { |
246 | /* | |
247 | HWND hWnd = (HWND) GetHWND(); | |
248 | ||
249 | // Will always return a number > 0 (according to docs) | |
250 | int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); | |
251 | ||
252 | // This gets the char index for the _beginning_ of the last line | |
253 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); | |
254 | ||
255 | // Get number of characters in the last line. We'll add this to the character | |
256 | // index for the last line, 1st position. | |
257 | int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L); | |
258 | ||
259 | return (long)(charIndex + lineLength); | |
260 | */ | |
261 | return 0; | |
262 | } | |
263 | ||
debe6624 | 264 | void wxComboBox::Replace(long from, long to, const wxString& value) |
2bda0e17 | 265 | { |
47d67540 | 266 | #if wxUSE_CLIPBOARD |
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267 | HWND hWnd = (HWND) GetHWND(); |
268 | long fromChar = from; | |
269 | long toChar = to; | |
270 | ||
271 | // Set selection and remove it | |
272 | #ifdef __WIN32__ | |
273 | SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar); | |
274 | #else | |
275 | SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); | |
276 | #endif | |
277 | SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); | |
278 | ||
279 | // Now replace with 'value', by pasting. | |
b3324be2 | 280 | wxSetClipboardData(wxDF_TEXT, (wxObject *)(const char *)value, 0, 0); |
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281 | |
282 | // Paste into edit control | |
283 | SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); | |
284 | #endif | |
285 | } | |
286 | ||
debe6624 | 287 | void wxComboBox::Remove(long from, long to) |
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288 | { |
289 | HWND hWnd = (HWND) GetHWND(); | |
290 | long fromChar = from; | |
291 | long toChar = to; | |
292 | ||
293 | // Cut all selected text | |
294 | #ifdef __WIN32__ | |
295 | SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar); | |
296 | #else | |
297 | SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); | |
298 | #endif | |
299 | SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); | |
300 | } | |
301 | ||
debe6624 | 302 | void wxComboBox::SetSelection(long from, long to) |
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303 | { |
304 | HWND hWnd = (HWND) GetHWND(); | |
305 | long fromChar = from; | |
306 | long toChar = to; | |
307 | // if from and to are both -1, it means | |
308 | // (in wxWindows) that all text should be selected. | |
309 | // This translates into Windows convention | |
310 | if ((from == -1) && (to == -1)) | |
311 | { | |
312 | fromChar = 0; | |
313 | toChar = -1; | |
314 | } | |
315 | ||
316 | #ifdef __WIN32__ | |
317 | SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar); | |
318 | // SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); | |
319 | #else | |
320 | // WPARAM is 0: selection is scrolled into view | |
321 | SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); | |
322 | #endif | |
323 | } | |
324 | ||
325 | #endif | |
47d67540 | 326 | // wxUSE_COMBOBOX |
2bda0e17 | 327 |