| 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 | // "button_press" |
| 39 | //----------------------------------------------------------------------------- |
| 40 | |
| 41 | extern "C" { |
| 42 | static gint gtk_popup_button_press (GtkWidget *widget, GdkEvent *gdk_event, wxPopupWindow* win ) |
| 43 | { |
| 44 | GtkWidget *child = gtk_get_event_widget (gdk_event); |
| 45 | |
| 46 | /* We don't ask for button press events on the grab widget, so |
| 47 | * if an event is reported directly to the grab widget, it must |
| 48 | * be on a window outside the application (and thus we remove |
| 49 | * the popup window). Otherwise, we check if the widget is a child |
| 50 | * of the grab widget, and only remove the popup window if it |
| 51 | * is not. |
| 52 | */ |
| 53 | if (child != widget) |
| 54 | { |
| 55 | while (child) |
| 56 | { |
| 57 | if (child == widget) |
| 58 | return FALSE; |
| 59 | child = child->parent; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() ); |
| 64 | event.SetEventObject( win ); |
| 65 | |
| 66 | (void)win->GetEventHandler()->ProcessEvent( event ); |
| 67 | |
| 68 | return TRUE; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | //----------------------------------------------------------------------------- |
| 73 | // "focus" from m_window |
| 74 | //----------------------------------------------------------------------------- |
| 75 | |
| 76 | extern "C" { |
| 77 | static gint gtk_dialog_focus_callback( GtkWidget *widget, GtkDirectionType WXUNUSED(d), wxWindow *WXUNUSED(win) ) |
| 78 | { |
| 79 | if (g_isIdle) |
| 80 | wxapp_install_idle_handler(); |
| 81 | |
| 82 | // This disables GTK's tab traversal |
| 83 | gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus" ); |
| 84 | return TRUE; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | //----------------------------------------------------------------------------- |
| 89 | // "delete_event" |
| 90 | //----------------------------------------------------------------------------- |
| 91 | |
| 92 | extern "C" { |
| 93 | bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxPopupWindow *win ) |
| 94 | { |
| 95 | if (g_isIdle) |
| 96 | wxapp_install_idle_handler(); |
| 97 | |
| 98 | if (win->IsEnabled()) |
| 99 | win->Close(); |
| 100 | |
| 101 | return TRUE; |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | //----------------------------------------------------------------------------- |
| 106 | // "realize" from m_widget |
| 107 | //----------------------------------------------------------------------------- |
| 108 | |
| 109 | /* we cannot MWM hints and icons before the widget has been realized, |
| 110 | so we do this directly after realization */ |
| 111 | |
| 112 | extern "C" { |
| 113 | static gint |
| 114 | gtk_dialog_realized_callback( GtkWidget * WXUNUSED(widget), wxPopupWindow *win ) |
| 115 | { |
| 116 | if (g_isIdle) |
| 117 | wxapp_install_idle_handler(); |
| 118 | |
| 119 | /* all this is for Motif Window Manager "hints" and is supposed to be |
| 120 | recognized by other WM as well. not tested. */ |
| 121 | long decor = (long) GDK_DECOR_BORDER; |
| 122 | long func = (long) GDK_FUNC_MOVE ; |
| 123 | |
| 124 | gdk_window_set_decorations( win->m_widget->window, (GdkWMDecoration)decor); |
| 125 | gdk_window_set_functions( win->m_widget->window, (GdkWMFunction)func); |
| 126 | |
| 127 | gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1); |
| 128 | |
| 129 | return FALSE; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | //----------------------------------------------------------------------------- |
| 134 | // InsertChild for wxPopupWindow |
| 135 | //----------------------------------------------------------------------------- |
| 136 | |
| 137 | /* Callback for wxFrame. This very strange beast has to be used because |
| 138 | * C++ has no virtual methods in a constructor. We have to emulate a |
| 139 | * virtual function here as wxWidgets requires different ways to insert |
| 140 | * a child in container classes. */ |
| 141 | |
| 142 | static void wxInsertChildInDialog( wxPopupWindow* parent, wxWindow* child ) |
| 143 | { |
| 144 | gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow), |
| 145 | GTK_WIDGET(child->m_widget), |
| 146 | child->m_x, |
| 147 | child->m_y, |
| 148 | child->m_width, |
| 149 | child->m_height ); |
| 150 | |
| 151 | if (parent->HasFlag(wxTAB_TRAVERSAL)) |
| 152 | { |
| 153 | /* we now allow a window to get the focus as long as it |
| 154 | doesn't have any children. */ |
| 155 | GTK_WIDGET_UNSET_FLAGS( parent->m_wxwindow, GTK_CAN_FOCUS ); |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | //----------------------------------------------------------------------------- |
| 160 | // wxPopupWindow |
| 161 | //----------------------------------------------------------------------------- |
| 162 | |
| 163 | BEGIN_EVENT_TABLE(wxPopupWindow,wxPopupWindowBase) |
| 164 | #ifdef __WXUNIVERSAL__ |
| 165 | EVT_SIZE(wxPopupWindow::OnSize) |
| 166 | #endif |
| 167 | END_EVENT_TABLE() |
| 168 | |
| 169 | wxPopupWindow::~wxPopupWindow() |
| 170 | { |
| 171 | } |
| 172 | |
| 173 | bool wxPopupWindow::Create( wxWindow *parent, int style ) |
| 174 | { |
| 175 | m_needParent = FALSE; |
| 176 | |
| 177 | if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) || |
| 178 | !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("popup") )) |
| 179 | { |
| 180 | wxFAIL_MSG( wxT("wxPopupWindow creation failed") ); |
| 181 | return FALSE; |
| 182 | } |
| 183 | |
| 184 | // Unlike windows, top level windows are created hidden by default. |
| 185 | m_isShown = false; |
| 186 | |
| 187 | // All dialogs should really have this style |
| 188 | m_windowStyle |= wxTAB_TRAVERSAL; |
| 189 | |
| 190 | m_insertCallback = (wxInsertChildFunction) wxInsertChildInDialog; |
| 191 | |
| 192 | m_widget = gtk_window_new( GTK_WINDOW_POPUP ); |
| 193 | |
| 194 | if ((m_parent) && (GTK_IS_WINDOW(m_parent->m_widget))) |
| 195 | gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) ); |
| 196 | |
| 197 | GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS ); |
| 198 | |
| 199 | gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event", |
| 200 | GTK_SIGNAL_FUNC(gtk_dialog_delete_callback), (gpointer)this ); |
| 201 | |
| 202 | m_wxwindow = gtk_pizza_new(); |
| 203 | gtk_widget_show( m_wxwindow ); |
| 204 | GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS ); |
| 205 | |
| 206 | gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow ); |
| 207 | |
| 208 | if (m_parent) m_parent->AddChild( this ); |
| 209 | |
| 210 | PostCreation(); |
| 211 | |
| 212 | /* we cannot set MWM hints before the widget has |
| 213 | been realized, so we do this directly after realization */ |
| 214 | gtk_signal_connect( GTK_OBJECT(m_widget), "realize", |
| 215 | GTK_SIGNAL_FUNC(gtk_dialog_realized_callback), (gpointer) this ); |
| 216 | |
| 217 | // disable native tab traversal |
| 218 | gtk_signal_connect( GTK_OBJECT(m_widget), "focus", |
| 219 | GTK_SIGNAL_FUNC(gtk_dialog_focus_callback), (gpointer)this ); |
| 220 | |
| 221 | gtk_signal_connect (GTK_OBJECT(m_widget), "button_press_event", |
| 222 | GTK_SIGNAL_FUNC(gtk_popup_button_press), (gpointer)this ); |
| 223 | |
| 224 | return TRUE; |
| 225 | } |
| 226 | |
| 227 | void wxPopupWindow::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) ) |
| 228 | { |
| 229 | wxFAIL_MSG( wxT("DoMoveWindow called for wxPopupWindow") ); |
| 230 | } |
| 231 | |
| 232 | void wxPopupWindow::DoSetSize( int x, int y, int width, int height, int sizeFlags ) |
| 233 | { |
| 234 | wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") ); |
| 235 | wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid dialog") ); |
| 236 | |
| 237 | if (m_resizing) return; /* I don't like recursions */ |
| 238 | m_resizing = TRUE; |
| 239 | |
| 240 | int old_x = m_x; |
| 241 | int old_y = m_y; |
| 242 | |
| 243 | int old_width = m_width; |
| 244 | int old_height = m_height; |
| 245 | |
| 246 | if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0) |
| 247 | { |
| 248 | if (x != -1) m_x = x; |
| 249 | if (y != -1) m_y = y; |
| 250 | if (width != -1) m_width = width; |
| 251 | if (height != -1) m_height = height; |
| 252 | } |
| 253 | else |
| 254 | { |
| 255 | m_x = x; |
| 256 | m_y = y; |
| 257 | m_width = width; |
| 258 | m_height = height; |
| 259 | } |
| 260 | |
| 261 | /* |
| 262 | if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH) |
| 263 | { |
| 264 | if (width == -1) m_width = 80; |
| 265 | } |
| 266 | |
| 267 | if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT) |
| 268 | { |
| 269 | if (height == -1) m_height = 26; |
| 270 | } |
| 271 | */ |
| 272 | |
| 273 | int minWidth = GetMinWidth(), |
| 274 | minHeight = GetMinHeight(), |
| 275 | maxWidth = GetMaxWidth(), |
| 276 | maxHeight = GetMaxHeight(); |
| 277 | |
| 278 | if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth; |
| 279 | if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight; |
| 280 | if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth; |
| 281 | if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight; |
| 282 | |
| 283 | if ((m_x != -1) || (m_y != -1)) |
| 284 | { |
| 285 | if ((m_x != old_x) || (m_y != old_y)) |
| 286 | { |
| 287 | /* we set the position here and when showing the dialog |
| 288 | for the first time in idle time */ |
| 289 | gtk_widget_set_uposition( m_widget, m_x, m_y ); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | if ((m_width != old_width) || (m_height != old_height)) |
| 294 | { |
| 295 | gtk_widget_set_usize( m_widget, m_width, m_height ); |
| 296 | |
| 297 | /* actual resizing is deferred to GtkOnSize in idle time and |
| 298 | when showing the dialog */ |
| 299 | m_sizeSet = FALSE; |
| 300 | |
| 301 | } |
| 302 | |
| 303 | m_resizing = FALSE; |
| 304 | } |
| 305 | |
| 306 | void wxPopupWindow::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height ) |
| 307 | { |
| 308 | // due to a bug in gtk, x,y are always 0 |
| 309 | // m_x = x; |
| 310 | // m_y = y; |
| 311 | |
| 312 | if ((m_height == height) && (m_width == width) && (m_sizeSet)) return; |
| 313 | if (!m_wxwindow) return; |
| 314 | |
| 315 | m_width = width; |
| 316 | m_height = height; |
| 317 | |
| 318 | /* FIXME: is this a hack? */ |
| 319 | /* Since for some reason GTK will revert to using maximum size ever set |
| 320 | for this window, we have to set geometry hints maxsize to match size |
| 321 | given. Also set the to that minsize since resizing isn't possible |
| 322 | anyway. */ |
| 323 | |
| 324 | /* set size hints */ |
| 325 | gint flag = GDK_HINT_MAX_SIZE | GDK_HINT_MIN_SIZE; // GDK_HINT_POS; |
| 326 | GdkGeometry geom; |
| 327 | geom.min_width = m_width; |
| 328 | geom.min_height = m_height; |
| 329 | geom.max_width = m_width; |
| 330 | geom.max_height = m_height; |
| 331 | gtk_window_set_geometry_hints( GTK_WINDOW(m_widget), |
| 332 | (GtkWidget*) NULL, |
| 333 | &geom, |
| 334 | (GdkWindowHints) flag ); |
| 335 | |
| 336 | |
| 337 | m_sizeSet = TRUE; |
| 338 | |
| 339 | wxSizeEvent event( wxSize(m_width,m_height), GetId() ); |
| 340 | event.SetEventObject( this ); |
| 341 | GetEventHandler()->ProcessEvent( event ); |
| 342 | } |
| 343 | |
| 344 | void wxPopupWindow::OnInternalIdle() |
| 345 | { |
| 346 | if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow)) |
| 347 | GtkOnSize( m_x, m_y, m_width, m_height ); |
| 348 | |
| 349 | wxWindow::OnInternalIdle(); |
| 350 | } |
| 351 | |
| 352 | bool wxPopupWindow::Show( bool show ) |
| 353 | { |
| 354 | if (show && !m_sizeSet) |
| 355 | { |
| 356 | /* by calling GtkOnSize here, we don't have to call |
| 357 | either after showing the frame, which would entail |
| 358 | much ugly flicker nor from within the size_allocate |
| 359 | handler, because GTK 1.1.X forbids that. */ |
| 360 | |
| 361 | GtkOnSize( m_x, m_y, m_width, m_height ); |
| 362 | } |
| 363 | |
| 364 | bool ret = wxWindow::Show( show ); |
| 365 | |
| 366 | return ret; |
| 367 | } |
| 368 | |
| 369 | #endif // wxUSE_POPUPWIN |