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