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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: popupwin.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "popupwin.h" | |
12 | #endif | |
13 | ||
14 | #include "wx/defs.h" | |
15 | ||
16 | #if wxUSE_POPUPWIN | |
17 | ||
18 | #include "wx/popupwin.h" | |
19 | #include "wx/frame.h" | |
20 | #include "wx/app.h" | |
21 | #include "wx/cursor.h" | |
22 | ||
23 | #include <gdk/gdk.h> | |
24 | #include <gtk/gtk.h> | |
25 | #include <gdk/gdkkeysyms.h> | |
26 | ||
27 | #include "wx/gtk/win_gtk.h" | |
28 | ||
29 | //----------------------------------------------------------------------------- | |
30 | // idle system | |
31 | //----------------------------------------------------------------------------- | |
32 | ||
33 | extern void wxapp_install_idle_handler(); | |
34 | extern bool g_isIdle; | |
35 | ||
36 | //----------------------------------------------------------------------------- | |
37 | // "focus" from m_window | |
38 | //----------------------------------------------------------------------------- | |
39 | ||
40 | static gint gtk_dialog_focus_callback( GtkWidget *widget, GtkDirectionType WXUNUSED(d), wxWindow *WXUNUSED(win) ) | |
41 | { | |
42 | if (g_isIdle) | |
43 | wxapp_install_idle_handler(); | |
44 | ||
45 | // This disables GTK's tab traversal | |
46 | gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus" ); | |
47 | return TRUE; | |
48 | } | |
49 | ||
50 | //----------------------------------------------------------------------------- | |
51 | // "delete_event" | |
52 | //----------------------------------------------------------------------------- | |
53 | ||
54 | bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxPopupWindow *win ) | |
55 | { | |
56 | if (g_isIdle) | |
57 | wxapp_install_idle_handler(); | |
58 | ||
59 | if (win->IsEnabled()) | |
60 | win->Close(); | |
61 | ||
62 | return TRUE; | |
63 | } | |
64 | ||
65 | //----------------------------------------------------------------------------- | |
66 | // "size_allocate" | |
67 | //----------------------------------------------------------------------------- | |
68 | ||
69 | static void gtk_dialog_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxPopupWindow *win ) | |
70 | { | |
71 | if (g_isIdle) | |
72 | wxapp_install_idle_handler(); | |
73 | ||
74 | if (!win->m_hasVMT) return; | |
75 | ||
76 | if ((win->m_width != alloc->width) || (win->m_height != alloc->height)) | |
77 | { | |
78 | win->m_width = alloc->width; | |
79 | win->m_height = alloc->height; | |
80 | win->GtkUpdateSize(); | |
81 | } | |
82 | } | |
83 | ||
84 | //----------------------------------------------------------------------------- | |
85 | // "realize" from m_widget | |
86 | //----------------------------------------------------------------------------- | |
87 | ||
88 | /* we cannot MWM hints and icons before the widget has been realized, | |
89 | so we do this directly after realization */ | |
90 | ||
91 | static gint | |
92 | gtk_dialog_realized_callback( GtkWidget * WXUNUSED(widget), wxPopupWindow *win ) | |
93 | { | |
94 | if (g_isIdle) | |
95 | wxapp_install_idle_handler(); | |
96 | ||
97 | /* all this is for Motif Window Manager "hints" and is supposed to be | |
98 | recognized by other WM as well. not tested. */ | |
99 | long decor = (long) GDK_DECOR_BORDER; | |
100 | long func = (long) GDK_FUNC_MOVE ; | |
101 | ||
102 | gdk_window_set_decorations( win->m_widget->window, (GdkWMDecoration)decor); | |
103 | gdk_window_set_functions( win->m_widget->window, (GdkWMFunction)func); | |
104 | ||
105 | /* GTK's shrinking/growing policy */ | |
106 | if ((win->GetWindowStyle() & wxRESIZE_BORDER) == 0) | |
107 | gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1); | |
108 | else | |
109 | gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1); | |
110 | ||
111 | return FALSE; | |
112 | } | |
113 | ||
114 | //----------------------------------------------------------------------------- | |
115 | // InsertChild for wxPopupWindow | |
116 | //----------------------------------------------------------------------------- | |
117 | ||
118 | /* Callback for wxFrame. This very strange beast has to be used because | |
119 | * C++ has no virtual methods in a constructor. We have to emulate a | |
120 | * virtual function here as wxWindows requires different ways to insert | |
121 | * a child in container classes. */ | |
122 | ||
123 | static void wxInsertChildInDialog( wxPopupWindow* parent, wxWindow* child ) | |
124 | { | |
125 | gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow), | |
126 | GTK_WIDGET(child->m_widget), | |
127 | child->m_x, | |
128 | child->m_y, | |
129 | child->m_width, | |
130 | child->m_height ); | |
131 | ||
132 | if (parent->HasFlag(wxTAB_TRAVERSAL)) | |
133 | { | |
134 | /* we now allow a window to get the focus as long as it | |
135 | doesn't have any children. */ | |
136 | GTK_WIDGET_UNSET_FLAGS( parent->m_wxwindow, GTK_CAN_FOCUS ); | |
137 | } | |
138 | } | |
139 | ||
140 | //----------------------------------------------------------------------------- | |
141 | // wxPopupWindow | |
142 | //----------------------------------------------------------------------------- | |
143 | ||
144 | BEGIN_EVENT_TABLE(wxPopupWindow,wxPopupWindowBase) | |
145 | #ifdef __WXUNIVERSAL__ | |
146 | EVT_SIZE(wxPopupWindow::OnSize) | |
147 | #endif | |
148 | END_EVENT_TABLE() | |
149 | ||
150 | IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow) | |
151 | ||
152 | wxPopupWindow::~wxPopupWindow() | |
153 | { | |
154 | if (GTK_WIDGET_HAS_GRAB(m_widget)) | |
155 | gtk_grab_remove( m_widget ); | |
156 | } | |
157 | ||
158 | bool wxPopupWindow::Create( wxWindow *parent, int style ) | |
159 | { | |
160 | m_needParent = FALSE; | |
161 | ||
162 | if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) || | |
163 | !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, "popup" )) | |
164 | { | |
165 | wxFAIL_MSG( wxT("wxPopupWindow creation failed") ); | |
166 | return FALSE; | |
167 | } | |
168 | ||
169 | // All dialogs should really have this style | |
170 | m_windowStyle |= wxTAB_TRAVERSAL; | |
171 | ||
172 | m_insertCallback = (wxInsertChildFunction) wxInsertChildInDialog; | |
173 | ||
174 | m_widget = gtk_window_new( GTK_WINDOW_POPUP ); | |
175 | ||
176 | if ((m_parent) && (GTK_IS_WINDOW(m_parent->m_widget))) | |
177 | gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) ); | |
178 | ||
179 | GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS ); | |
180 | ||
181 | gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event", | |
182 | GTK_SIGNAL_FUNC(gtk_dialog_delete_callback), (gpointer)this ); | |
183 | ||
184 | m_wxwindow = gtk_pizza_new(); | |
185 | gtk_widget_show( m_wxwindow ); | |
186 | GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS ); | |
187 | ||
188 | gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow ); | |
189 | ||
190 | if (m_parent) m_parent->AddChild( this ); | |
191 | ||
192 | PostCreation(); | |
193 | ||
194 | /* we cannot set MWM hints before the widget has | |
195 | been realized, so we do this directly after realization */ | |
196 | gtk_signal_connect( GTK_OBJECT(m_widget), "realize", | |
197 | GTK_SIGNAL_FUNC(gtk_dialog_realized_callback), (gpointer) this ); | |
198 | ||
199 | /* the user resized the frame by dragging etc. */ | |
200 | gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate", | |
201 | GTK_SIGNAL_FUNC(gtk_dialog_size_callback), (gpointer)this ); | |
202 | ||
203 | /* disable native tab traversal */ | |
204 | gtk_signal_connect( GTK_OBJECT(m_widget), "focus", | |
205 | GTK_SIGNAL_FUNC(gtk_dialog_focus_callback), (gpointer)this ); | |
206 | ||
207 | return TRUE; | |
208 | } | |
209 | ||
210 | void wxPopupWindow::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) ) | |
211 | { | |
212 | wxFAIL_MSG( wxT("DoMoveWindow called for wxPopupWindow") ); | |
213 | } | |
214 | ||
215 | void wxPopupWindow::DoSetSize( int x, int y, int width, int height, int sizeFlags ) | |
216 | { | |
217 | wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") ); | |
218 | wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid dialog") ); | |
219 | ||
220 | if (m_resizing) return; /* I don't like recursions */ | |
221 | m_resizing = TRUE; | |
222 | ||
223 | int old_x = m_x; | |
224 | int old_y = m_y; | |
225 | ||
226 | int old_width = m_width; | |
227 | int old_height = m_height; | |
228 | ||
229 | if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0) | |
230 | { | |
231 | if (x != -1) m_x = x; | |
232 | if (y != -1) m_y = y; | |
233 | if (width != -1) m_width = width; | |
234 | if (height != -1) m_height = height; | |
235 | } | |
236 | else | |
237 | { | |
238 | m_x = x; | |
239 | m_y = y; | |
240 | m_width = width; | |
241 | m_height = height; | |
242 | } | |
243 | ||
244 | /* | |
245 | if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH) | |
246 | { | |
247 | if (width == -1) m_width = 80; | |
248 | } | |
249 | ||
250 | if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT) | |
251 | { | |
252 | if (height == -1) m_height = 26; | |
253 | } | |
254 | */ | |
255 | ||
256 | int minWidth = GetMinWidth(), | |
257 | minHeight = GetMinHeight(), | |
258 | maxWidth = GetMaxWidth(), | |
259 | maxHeight = GetMaxHeight(); | |
260 | ||
261 | if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth; | |
262 | if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight; | |
263 | if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth; | |
264 | if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight; | |
265 | ||
266 | if ((m_x != -1) || (m_y != -1)) | |
267 | { | |
268 | if ((m_x != old_x) || (m_y != old_y)) | |
269 | { | |
270 | /* we set the position here and when showing the dialog | |
271 | for the first time in idle time */ | |
272 | gtk_widget_set_uposition( m_widget, m_x, m_y ); | |
273 | } | |
274 | } | |
275 | ||
276 | if ((m_width != old_width) || (m_height != old_height)) | |
277 | { | |
278 | gtk_widget_set_usize( m_widget, m_width, m_height ); | |
279 | ||
280 | /* actual resizing is deferred to GtkOnSize in idle time and | |
281 | when showing the dialog */ | |
282 | m_sizeSet = FALSE; | |
283 | ||
284 | } | |
285 | ||
286 | m_resizing = FALSE; | |
287 | } | |
288 | ||
289 | void wxPopupWindow::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height ) | |
290 | { | |
291 | // due to a bug in gtk, x,y are always 0 | |
292 | // m_x = x; | |
293 | // m_y = y; | |
294 | ||
295 | if ((m_height == height) && (m_width == width) && (m_sizeSet)) return; | |
296 | if (!m_wxwindow) return; | |
297 | ||
298 | m_width = width; | |
299 | m_height = height; | |
300 | ||
301 | int minWidth = GetMinWidth(), | |
302 | minHeight = GetMinHeight(), | |
303 | maxWidth = GetMaxWidth(), | |
304 | maxHeight = GetMaxHeight(); | |
305 | ||
306 | if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth; | |
307 | if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight; | |
308 | if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth; | |
309 | if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight; | |
310 | ||
311 | /* set size hints */ | |
312 | gint flag = 0; // GDK_HINT_POS; | |
313 | if ((minWidth != -1) || (minHeight != -1)) flag |= GDK_HINT_MIN_SIZE; | |
314 | if ((maxWidth != -1) || (maxHeight != -1)) flag |= GDK_HINT_MAX_SIZE; | |
315 | GdkGeometry geom; | |
316 | geom.min_width = minWidth; | |
317 | geom.min_height = minHeight; | |
318 | geom.max_width = maxWidth; | |
319 | geom.max_height = maxHeight; | |
320 | gtk_window_set_geometry_hints( GTK_WINDOW(m_widget), | |
321 | (GtkWidget*) NULL, | |
322 | &geom, | |
323 | (GdkWindowHints) flag ); | |
324 | ||
325 | m_sizeSet = TRUE; | |
326 | ||
327 | wxSizeEvent event( wxSize(m_width,m_height), GetId() ); | |
328 | event.SetEventObject( this ); | |
329 | GetEventHandler()->ProcessEvent( event ); | |
330 | } | |
331 | ||
332 | void wxPopupWindow::OnInternalIdle() | |
333 | { | |
334 | if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow)) | |
335 | GtkOnSize( m_x, m_y, m_width, m_height ); | |
336 | ||
337 | wxWindow::OnInternalIdle(); | |
338 | } | |
339 | ||
340 | bool wxPopupWindow::Show( bool show ) | |
341 | { | |
342 | if (show && !m_sizeSet) | |
343 | { | |
344 | /* by calling GtkOnSize here, we don't have to call | |
345 | either after showing the frame, which would entail | |
346 | much ugly flicker nor from within the size_allocate | |
347 | handler, because GTK 1.1.X forbids that. */ | |
348 | ||
349 | GtkOnSize( m_x, m_y, m_width, m_height ); | |
350 | } | |
351 | ||
352 | if (!show) | |
353 | gtk_grab_remove( m_widget ); | |
354 | ||
355 | bool ret = wxWindow::Show( show ); | |
356 | ||
357 | if (show) | |
358 | gtk_grab_add( m_widget ); | |
359 | ||
360 | return ret; | |
361 | } | |
362 | ||
363 | #endif // wxUSE_POPUPWIN |