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[wxWidgets.git] / src / gtk / popupwin.cpp
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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
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14#include "wx/defs.h"
15
16#if wxUSE_POPUPWIN
17
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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
33extern void wxapp_install_idle_handler();
34extern bool g_isIdle;
35
36//-----------------------------------------------------------------------------
37// "focus" from m_window
38//-----------------------------------------------------------------------------
39
40static 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
54bool 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
69static 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
91static gint
92gtk_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
123static 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
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144BEGIN_EVENT_TABLE(wxPopupWindow,wxPopupWindowBase)
145#ifdef __WXUNIVERSAL__
6522713c 146 EVT_SIZE(wxPopupWindow::OnSize)
8f0db49c 147#endif
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148END_EVENT_TABLE()
149
6522713c 150IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)
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151
152bool wxPopupWindow::Create( wxWindow *parent, int style )
153{
154 m_needParent = FALSE;
155
156 if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
157 !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, "popup" ))
158 {
159 wxFAIL_MSG( wxT("wxPopupWindow creation failed") );
160 return FALSE;
161 }
162
163 // All dialogs should really have this style
164 m_windowStyle |= wxTAB_TRAVERSAL;
165
166 m_insertCallback = (wxInsertChildFunction) wxInsertChildInDialog;
167
168 m_widget = gtk_window_new( GTK_WINDOW_POPUP );
169
170 if ((m_parent) && (GTK_IS_WINDOW(m_parent->m_widget)))
171 gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) );
172
173 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
174
175 gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
176 GTK_SIGNAL_FUNC(gtk_dialog_delete_callback), (gpointer)this );
177
178 m_wxwindow = gtk_pizza_new();
179 gtk_widget_show( m_wxwindow );
180 GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
181
182 gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
183
184 if (m_parent) m_parent->AddChild( this );
185
186 PostCreation();
187
188 /* we cannot set MWM hints before the widget has
189 been realized, so we do this directly after realization */
190 gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
191 GTK_SIGNAL_FUNC(gtk_dialog_realized_callback), (gpointer) this );
192
193 /* the user resized the frame by dragging etc. */
194 gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
195 GTK_SIGNAL_FUNC(gtk_dialog_size_callback), (gpointer)this );
196
197 /* disable native tab traversal */
198 gtk_signal_connect( GTK_OBJECT(m_widget), "focus",
199 GTK_SIGNAL_FUNC(gtk_dialog_focus_callback), (gpointer)this );
200
201 return TRUE;
202}
203
204void wxPopupWindow::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
205{
206 wxFAIL_MSG( wxT("DoMoveWindow called for wxPopupWindow") );
207}
208
209void wxPopupWindow::DoSetSize( int x, int y, int width, int height, int sizeFlags )
210{
211 wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") );
212 wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid dialog") );
213
214 if (m_resizing) return; /* I don't like recursions */
215 m_resizing = TRUE;
216
217 int old_x = m_x;
218 int old_y = m_y;
219
220 int old_width = m_width;
221 int old_height = m_height;
222
223 if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0)
224 {
225 if (x != -1) m_x = x;
226 if (y != -1) m_y = y;
227 if (width != -1) m_width = width;
228 if (height != -1) m_height = height;
229 }
230 else
231 {
232 m_x = x;
233 m_y = y;
234 m_width = width;
235 m_height = height;
236 }
237
238/*
239 if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
240 {
241 if (width == -1) m_width = 80;
242 }
243
244 if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
245 {
246 if (height == -1) m_height = 26;
247 }
248*/
249
250 if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
251 if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
252 if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
253 if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
254
255 if ((m_x != -1) || (m_y != -1))
256 {
257 if ((m_x != old_x) || (m_y != old_y))
258 {
259 /* we set the position here and when showing the dialog
260 for the first time in idle time */
261 gtk_widget_set_uposition( m_widget, m_x, m_y );
262 }
263 }
264
265 if ((m_width != old_width) || (m_height != old_height))
266 {
267 gtk_widget_set_usize( m_widget, m_width, m_height );
268
269 /* actual resizing is deferred to GtkOnSize in idle time and
270 when showing the dialog */
271 m_sizeSet = FALSE;
272
273 }
274
275 m_resizing = FALSE;
276}
277
278void wxPopupWindow::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
279{
280 // due to a bug in gtk, x,y are always 0
281 // m_x = x;
282 // m_y = y;
283
284 if ((m_height == height) && (m_width == width) && (m_sizeSet)) return;
285 if (!m_wxwindow) return;
286
287 m_width = width;
288 m_height = height;
289
290 if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
291 if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
292 if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
293 if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
294
295 /* set size hints */
296 gint flag = 0; // GDK_HINT_POS;
297 if ((m_minWidth != -1) || (m_minHeight != -1)) flag |= GDK_HINT_MIN_SIZE;
298 if ((m_maxWidth != -1) || (m_maxHeight != -1)) flag |= GDK_HINT_MAX_SIZE;
299 GdkGeometry geom;
300 geom.min_width = m_minWidth;
301 geom.min_height = m_minHeight;
302 geom.max_width = m_maxWidth;
303 geom.max_height = m_maxHeight;
304 gtk_window_set_geometry_hints( GTK_WINDOW(m_widget),
305 (GtkWidget*) NULL,
306 &geom,
307 (GdkWindowHints) flag );
308
309 m_sizeSet = TRUE;
310
311 wxSizeEvent event( wxSize(m_width,m_height), GetId() );
312 event.SetEventObject( this );
313 GetEventHandler()->ProcessEvent( event );
314}
315
316void wxPopupWindow::OnInternalIdle()
317{
318 if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow))
319 GtkOnSize( m_x, m_y, m_width, m_height );
320
321 wxWindow::OnInternalIdle();
322}
323
324bool wxPopupWindow::Show( bool show )
325{
326 if (show && !m_sizeSet)
327 {
328 /* by calling GtkOnSize here, we don't have to call
329 either after showing the frame, which would entail
330 much ugly flicker nor from within the size_allocate
331 handler, because GTK 1.1.X forbids that. */
332
333 GtkOnSize( m_x, m_y, m_width, m_height );
334 }
335
336 bool ret = wxWindow::Show( show );
337
338 return ret;
339}
340
f3ecfad1 341#endif // wxUSE_POPUPWIN