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0eb8b9579a06269ec035168b06621ff53a000322
wxWidgets/src/gtk/toplevel.cpp
Paul Cornett 0eb8b9579a finish setting size before sending wxMoveEvent 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75867 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2014-02-10 17:32:42 +00:00

1564 lines
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/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk/toplevel.cpp
// Purpose:
// Author: Robert Roebling
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __VMS
#define XIconifyWindow XICONIFYWINDOW
#endif
#include "wx/toplevel.h"
#ifndef WX_PRECOMP
#include "wx/frame.h"
#include "wx/icon.h"
#include "wx/log.h"
#include "wx/app.h"
#endif
#include "wx/evtloop.h"
#include "wx/sysopt.h"
#include <gtk/gtk.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#include <X11/Xatom.h> // XA_CARDINAL
#include "wx/unix/utilsx11.h"
#endif
#ifdef GDK_WINDOWING_WAYLAND
#include <gdk/gdkwayland.h>
#endif
#include "wx/gtk/private.h"
#include "wx/gtk/private/gtk2-compat.h"
#include "wx/gtk/private/win_gtk.h"
#if wxUSE_LIBHILDON
#include <hildon-widgets/hildon-program.h>
#include <hildon-widgets/hildon-window.h>
#endif // wxUSE_LIBHILDON
#if wxUSE_LIBHILDON2
#include <hildon/hildon.h>
#endif // wxUSE_LIBHILDON2
// ----------------------------------------------------------------------------
// data
// ----------------------------------------------------------------------------
// this is incremented while a modal dialog is shown
int wxOpenModalDialogsCount = 0;
// the frame that is currently active (i.e. its child has focus). It is
// used to generate wxActivateEvents
static wxTopLevelWindowGTK *g_activeFrame = NULL;
static wxTopLevelWindowGTK *g_lastActiveFrame = NULL;
// if we detect that the app has got/lost the focus, we set this variable to
// either TRUE or FALSE and an activate event will be sent during the next
// OnIdle() call and it is reset to -1: this value means that we shouldn't
// send any activate events at all
static int g_sendActivateEvent = -1;
extern wxCursor g_globalCursor;
extern wxCursor g_busyCursor;
#ifdef GDK_WINDOWING_X11
// Whether _NET_REQUEST_FRAME_EXTENTS support is working
static enum {
RFE_STATUS_UNKNOWN, RFE_STATUS_WORKING, RFE_STATUS_BROKEN
} gs_requestFrameExtentsStatus;
static bool gs_decorCacheValid;
#endif
//-----------------------------------------------------------------------------
// RequestUserAttention related functions
//-----------------------------------------------------------------------------
#ifndef __WXGTK3__
static void wxgtk_window_set_urgency_hint (GtkWindow *win,
gboolean setting)
{
#if GTK_CHECK_VERSION(2,7,0)
if (gtk_check_version(2,7,0) == NULL)
gtk_window_set_urgency_hint(win, setting);
else
#endif
{
#ifdef GDK_WINDOWING_X11
GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(win));
wxCHECK_RET(window, "wxgtk_window_set_urgency_hint: GdkWindow not realized");
Display* dpy = GDK_WINDOW_XDISPLAY(window);
Window xid = GDK_WINDOW_XID(window);
XWMHints* wm_hints = XGetWMHints(dpy, xid);
if (!wm_hints)
wm_hints = XAllocWMHints();
if (setting)
wm_hints->flags |= XUrgencyHint;
else
wm_hints->flags &= ~XUrgencyHint;
XSetWMHints(dpy, xid, wm_hints);
XFree(wm_hints);
#endif // GDK_WINDOWING_X11
}
}
#define gtk_window_set_urgency_hint wxgtk_window_set_urgency_hint
#endif
extern "C" {
static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
{
gtk_window_set_urgency_hint(GTK_WINDOW(win->m_widget), false);
win->m_urgency_hint = -2;
return FALSE;
}
}
//-----------------------------------------------------------------------------
// "focus_in_event"
//-----------------------------------------------------------------------------
extern "C" {
static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
GdkEvent *WXUNUSED(event),
wxTopLevelWindowGTK *win )
{
switch ( g_sendActivateEvent )
{
case -1:
// we've got focus from outside, synthetize wxActivateEvent
g_sendActivateEvent = 1;
break;
case 0:
// another our window just lost focus, it was already ours before
// - don't send any wxActivateEvent
g_sendActivateEvent = -1;
break;
}
g_activeFrame = win;
g_lastActiveFrame = g_activeFrame;
// wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
// MR: wxRequestUserAttention related block
switch( win->m_urgency_hint )
{
default:
g_source_remove( win->m_urgency_hint );
// no break, fallthrough to remove hint too
case -1:
gtk_window_set_urgency_hint(GTK_WINDOW(widget), false);
win->m_urgency_hint = -2;
break;
case -2: break;
}
wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
event.SetEventObject(g_activeFrame);
g_activeFrame->HandleWindowEvent(event);
return FALSE;
}
}
//-----------------------------------------------------------------------------
// "focus_out_event"
//-----------------------------------------------------------------------------
extern "C" {
static
gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
GdkEventFocus *WXUNUSED(gdk_event),
wxTopLevelWindowGTK * WXUNUSED(win))
{
// if the focus goes out of our app altogether, OnIdle() will send
// wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
// g_sendActivateEvent to -1
g_sendActivateEvent = 0;
// wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
// wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
if (g_activeFrame)
{
wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
event.SetEventObject(g_activeFrame);
g_activeFrame->HandleWindowEvent(event);
g_activeFrame = NULL;
}
return FALSE;
}
}
// ----------------------------------------------------------------------------
// "key_press_event"
// ----------------------------------------------------------------------------
extern "C" {
static gboolean
wxgtk_tlw_key_press_event(GtkWidget *widget, GdkEventKey *event)
{
GtkWindow* const window = GTK_WINDOW(widget);
// By default GTK+ checks for the menu accelerators in this (top level)
// window first and then propagates the event to the currently focused
// child from where it bubbles up the window parent chain. In wxWidgets,
// however, we want the child window to have the event first but still
// handle it as an accelerator if it's not processed there, so we need to
// customize this by reversing the order of the steps done in the standard
// GTK+ gtk_window_key_press_event() handler.
if ( gtk_window_propagate_key_event(window, event) )
return TRUE;
if ( gtk_window_activate_key(window, event) )
return TRUE;
if (GTK_WIDGET_GET_CLASS(widget)->key_press_event(widget, event))
return TRUE;
return FALSE;
}
}
//-----------------------------------------------------------------------------
// "size_allocate" from m_wxwindow
//-----------------------------------------------------------------------------
extern "C" {
static void
size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
{
win->m_useCachedClientSize = true;
if (win->m_clientWidth != alloc->width ||
win->m_clientHeight != alloc->height)
{
win->m_clientWidth = alloc->width;
win->m_clientHeight = alloc->height;
GtkAllocation a;
gtk_widget_get_allocation(win->m_widget, &a);
wxSize size(a.width, a.height);
size.x += win->m_decorSize.left + win->m_decorSize.right;
size.y += win->m_decorSize.top + win->m_decorSize.bottom;
win->m_width = size.x;
win->m_height = size.y;
if (!win->IsIconized())
{
wxSizeEvent event(size, win->GetId());
event.SetEventObject(win);
win->HandleWindowEvent(event);
}
// else the window is currently unmapped, don't generate size events
}
}
}
//-----------------------------------------------------------------------------
// "delete_event"
//-----------------------------------------------------------------------------
extern "C" {
static gboolean
gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
GdkEvent *WXUNUSED(event),
wxTopLevelWindowGTK *win )
{
if (win->IsEnabled() &&
(wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
win->IsGrabbed()))
win->Close();
return TRUE;
}
}
//-----------------------------------------------------------------------------
// "configure_event"
//-----------------------------------------------------------------------------
extern "C" {
static gboolean
gtk_frame_configure_callback( GtkWidget*,
GdkEventConfigure* gdk_event,
wxTopLevelWindowGTK *win )
{
win->GTKConfigureEvent(gdk_event->x, gdk_event->y);
return false;
}
}
void wxTopLevelWindowGTK::GTKConfigureEvent(int x, int y)
{
wxPoint point;
#ifdef GDK_WINDOWING_X11
if (gs_decorCacheValid)
{
const DecorSize& decorSize = GetCachedDecorSize();
point.x = x - decorSize.left;
point.y = y - decorSize.top;
}
else
#endif
{
gtk_window_get_position(GTK_WINDOW(m_widget), &point.x, &point.y);
}
if (m_x != point.x || m_y != point.y)
{
m_x = point.x;
m_y = point.y;
wxMoveEvent event(point, GetId());
event.SetEventObject(this);
HandleWindowEvent(event);
}
}
//-----------------------------------------------------------------------------
// "realize" from m_widget
//-----------------------------------------------------------------------------
// we cannot the WM hints and icons before the widget has been realized,
// so we do this directly after realization
void wxTopLevelWindowGTK::GTKHandleRealized()
{
wxNonOwnedWindow::GTKHandleRealized();
GdkWindow* window = gtk_widget_get_window(m_widget);
gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
const wxIconBundle& icons = GetIcons();
if (icons.GetIconCount())
SetIcons(icons);
GdkCursor* cursor = g_globalCursor.GetCursor();
if (wxIsBusy() && !gtk_window_get_modal(GTK_WINDOW(m_widget)))
cursor = g_busyCursor.GetCursor();
if (cursor)
gdk_window_set_cursor(window, cursor);
#ifdef __WXGTK3__
if (gtk_window_get_has_resize_grip(GTK_WINDOW(m_widget)))
{
// Grip window can end up obscured, probably due to deferred show.
// Reset grip to ensure it is visible.
gtk_window_set_has_resize_grip(GTK_WINDOW(m_widget), false);
gtk_window_set_has_resize_grip(GTK_WINDOW(m_widget), true);
}
#endif
}
//-----------------------------------------------------------------------------
// "map_event" from m_widget
//-----------------------------------------------------------------------------
extern "C" {
static gboolean
gtk_frame_map_callback( GtkWidget*,
GdkEvent * WXUNUSED(event),
wxTopLevelWindow *win )
{
const bool wasIconized = win->IsIconized();
if (wasIconized)
{
// Because GetClientSize() returns (0,0) when IsIconized() is true,
// a size event must be generated, just in case GetClientSize() was
// called while iconized. This specifically happens when restoring a
// tlw that was "rolled up" with some WMs.
// Queue a resize rather than sending size event directly to allow
// children to be made visible first.
win->m_useCachedClientSize = false;
win->m_clientWidth = 0;
gtk_widget_queue_resize(win->m_wxwindow);
}
// it is possible for m_isShown to be false here, see bug #9909
if (win->wxWindowBase::Show(true))
{
wxShowEvent eventShow(win->GetId(), true);
eventShow.SetEventObject(win);
win->GetEventHandler()->ProcessEvent(eventShow);
}
// restore focus-on-map setting in case ShowWithoutActivating() was called
gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
return false;
}
}
//-----------------------------------------------------------------------------
// "window-state-event" from m_widget
//-----------------------------------------------------------------------------
extern "C" {
static gboolean
gtk_frame_window_state_callback( GtkWidget* WXUNUSED(widget),
GdkEventWindowState *event,
wxTopLevelWindow *win )
{
if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
win->SetIconizeState((event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) != 0);
// if maximized bit changed and it is now set
if (event->changed_mask & event->new_window_state & GDK_WINDOW_STATE_MAXIMIZED)
{
wxMaximizeEvent evt(win->GetId());
evt.SetEventObject(win);
win->HandleWindowEvent(evt);
}
if (event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
win->m_fsIsShowing = (event->new_window_state & GDK_WINDOW_STATE_FULLSCREEN) != 0;
return false;
}
}
//-----------------------------------------------------------------------------
bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
{
#ifdef GDK_WINDOWING_X11
static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
GdkDisplay* display = gdk_window_get_display(window);
Atom xproperty = gdk_x11_atom_to_xatom_for_display(display, property);
Atom type;
int format;
gulong nitems, bytes_after;
guchar* data;
Status status = XGetWindowProperty(
GDK_DISPLAY_XDISPLAY(display),
GDK_WINDOW_XID(window),
xproperty,
0, 4, false, XA_CARDINAL,
&type, &format, &nitems, &bytes_after, &data);
const bool success = status == Success && data && nitems == 4;
if (success)
{
long* p = (long*)data;
if (left) *left = int(p[0]);
if (right) *right = int(p[1]);
if (top) *top = int(p[2]);
if (bottom) *bottom = int(p[3]);
}
if (data)
XFree(data);
return success;
#else
return false;
#endif
}
#ifdef GDK_WINDOWING_X11
//-----------------------------------------------------------------------------
// "property_notify_event" from m_widget
//-----------------------------------------------------------------------------
extern "C" {
static gboolean property_notify_event(
GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
{
// Watch for changes to _NET_FRAME_EXTENTS property
static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
{
if (win->m_netFrameExtentsTimerId)
{
// WM support for _NET_REQUEST_FRAME_EXTENTS is working
gs_requestFrameExtentsStatus = RFE_STATUS_WORKING;
g_source_remove(win->m_netFrameExtentsTimerId);
win->m_netFrameExtentsTimerId = 0;
}
wxTopLevelWindowGTK::DecorSize decorSize = win->m_decorSize;
gs_decorCacheValid = wxGetFrameExtents(event->window,
&decorSize.left, &decorSize.right, &decorSize.top, &decorSize.bottom);
win->GTKUpdateDecorSize(decorSize);
}
return false;
}
}
extern "C" {
static gboolean request_frame_extents_timeout(void* data)
{
// WM support for _NET_REQUEST_FRAME_EXTENTS is broken
gs_requestFrameExtentsStatus = RFE_STATUS_BROKEN;
gdk_threads_enter();
wxTopLevelWindowGTK* win = static_cast<wxTopLevelWindowGTK*>(data);
win->m_netFrameExtentsTimerId = 0;
wxTopLevelWindowGTK::DecorSize decorSize = win->m_decorSize;
wxGetFrameExtents(gtk_widget_get_window(win->m_widget),
&decorSize.left, &decorSize.right, &decorSize.top, &decorSize.bottom);
win->GTKUpdateDecorSize(decorSize);
gdk_threads_leave();
return false;
}
}
#endif // GDK_WINDOWING_X11
// ----------------------------------------------------------------------------
// wxTopLevelWindowGTK creation
// ----------------------------------------------------------------------------
void wxTopLevelWindowGTK::Init()
{
m_mainWidget = NULL;
m_isIconized = false;
m_fsIsShowing = false;
m_themeEnabled = true;
m_gdkDecor =
m_gdkFunc = 0;
m_grabbed = false;
m_deferShow = true;
m_deferShowAllowed = true;
m_updateDecorSize = true;
m_netFrameExtentsTimerId = 0;
m_incWidth = m_incHeight = 0;
memset(&m_decorSize, 0, sizeof(m_decorSize));
m_urgency_hint = -2;
}
bool wxTopLevelWindowGTK::Create( wxWindow *parent,
wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& sizeOrig,
long style,
const wxString &name )
{
wxSize size(sizeOrig);
if (!size.IsFullySpecified())
size.SetDefaults(GetDefaultSize());
wxTopLevelWindows.Append( this );
if (!PreCreation( parent, pos, size ) ||
!CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
{
wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
return false;
}
m_title = title;
// NB: m_widget may be !=NULL if it was created by derived class' Create,
// e.g. in wxTaskBarIconAreaGTK
if (m_widget == NULL)
{
#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
// we must create HildonWindow and not a normal GtkWindow as the latter
// doesn't look correctly in Maemo environment and it must also be
// registered with the main program object
m_widget = hildon_window_new();
hildon_program_add_window(wxTheApp->GetHildonProgram(),
HILDON_WINDOW(m_widget));
#else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
{
// Tell WM that this is a dialog window and make it center
// on parent by default (this is what GtkDialog ctor does):
gtk_window_set_type_hint(GTK_WINDOW(m_widget),
GDK_WINDOW_TYPE_HINT_DIALOG);
gtk_window_set_position(GTK_WINDOW(m_widget),
GTK_WIN_POS_CENTER_ON_PARENT);
}
else
{
if (style & wxFRAME_TOOL_WINDOW)
{
gtk_window_set_type_hint(GTK_WINDOW(m_widget),
GDK_WINDOW_TYPE_HINT_UTILITY);
// On some WMs, like KDE, a TOOL_WINDOW will still show
// on the taskbar, but on Gnome a TOOL_WINDOW will not.
// For consistency between WMs and with Windows, we
// should set the NO_TASKBAR flag which will apply
// the set_skip_taskbar_hint if it is available,
// ensuring no taskbar entry will appear.
style |= wxFRAME_NO_TASKBAR;
}
}
#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
g_object_ref(m_widget);
}
wxWindow *topParent = wxGetTopLevelParent(m_parent);
if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
(style & wxFRAME_FLOAT_ON_PARENT)))
{
gtk_window_set_transient_for( GTK_WINDOW(m_widget),
GTK_WINDOW(topParent->m_widget) );
}
if (style & wxFRAME_NO_TASKBAR)
{
gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
}
if (style & wxSTAY_ON_TOP)
{
gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
}
if (style & wxMAXIMIZE)
gtk_window_maximize(GTK_WINDOW(m_widget));
#if 0
if (!name.empty())
gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
#endif
gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
gtk_widget_set_can_focus(m_widget, false);
g_signal_connect (m_widget, "delete_event",
G_CALLBACK (gtk_frame_delete_callback), this);
// m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
m_mainWidget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_show( m_mainWidget );
gtk_widget_set_can_focus(m_mainWidget, false);
gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
// m_wxwindow is the client area
m_wxwindow = wxPizza::New();
gtk_widget_show( m_wxwindow );
gtk_box_pack_start(GTK_BOX(m_mainWidget), m_wxwindow, true, true, 0);
// we donm't allow the frame to get the focus as otherwise
// the frame will grab it at arbitrary focus changes
gtk_widget_set_can_focus(m_wxwindow, false);
if (m_parent) m_parent->AddChild( this );
g_signal_connect(m_wxwindow, "size_allocate",
G_CALLBACK(size_allocate), this);
PostCreation();
#ifndef __WXGTK3__
if (pos != wxDefaultPosition)
gtk_widget_set_uposition( m_widget, m_x, m_y );
#endif
// for some reported size corrections
g_signal_connect (m_widget, "map_event",
G_CALLBACK (gtk_frame_map_callback), this);
// for iconized state
g_signal_connect (m_widget, "window_state_event",
G_CALLBACK (gtk_frame_window_state_callback), this);
// for wxMoveEvent
g_signal_connect (m_widget, "configure_event",
G_CALLBACK (gtk_frame_configure_callback), this);
// activation
g_signal_connect_after (m_widget, "focus_in_event",
G_CALLBACK (gtk_frame_focus_in_callback), this);
g_signal_connect_after (m_widget, "focus_out_event",
G_CALLBACK (gtk_frame_focus_out_callback), this);
// We need to customize the default GTK+ logic for key processing to make
// it conforming to wxWidgets event processing order.
g_signal_connect (m_widget, "key_press_event",
G_CALLBACK (wxgtk_tlw_key_press_event), NULL);
#ifdef GDK_WINDOWING_X11
#ifdef __WXGTK3__
if (GDK_IS_X11_SCREEN(gtk_window_get_screen(GTK_WINDOW(m_widget))))
#endif
{
gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
g_signal_connect(m_widget, "property_notify_event",
G_CALLBACK(property_notify_event), this);
}
#endif // GDK_WINDOWING_X11
// translate wx decorations styles into Motif WM hints (they are recognized
// by other WMs as well)
// always enable moving the window as we have no separate flag for enabling
// it
m_gdkFunc = GDK_FUNC_MOVE;
if ( style & wxCLOSE_BOX )
m_gdkFunc |= GDK_FUNC_CLOSE;
if ( style & wxMINIMIZE_BOX )
m_gdkFunc |= GDK_FUNC_MINIMIZE;
if ( style & wxMAXIMIZE_BOX )
m_gdkFunc |= GDK_FUNC_MAXIMIZE;
if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
{
m_gdkDecor = 0;
gtk_window_set_decorated(GTK_WINDOW(m_widget), false);
}
else // have border
{
m_gdkDecor = GDK_DECOR_BORDER;
if ( style & wxCAPTION )
m_gdkDecor |= GDK_DECOR_TITLE;
#if defined(GDK_WINDOWING_WAYLAND) && GTK_CHECK_VERSION(3,10,0)
else if (
GDK_IS_WAYLAND_DISPLAY(gtk_widget_get_display(m_widget)) &&
gtk_check_version(3,10,0) == NULL)
{
gtk_window_set_titlebar(GTK_WINDOW(m_widget), gtk_header_bar_new());
}
#endif
if ( style & wxSYSTEM_MENU )
m_gdkDecor |= GDK_DECOR_MENU;
if ( style & wxMINIMIZE_BOX )
m_gdkDecor |= GDK_DECOR_MINIMIZE;
if ( style & wxMAXIMIZE_BOX )
m_gdkDecor |= GDK_DECOR_MAXIMIZE;
if ( style & wxRESIZE_BORDER )
{
m_gdkFunc |= GDK_FUNC_RESIZE;
m_gdkDecor |= GDK_DECOR_RESIZEH;
}
}
m_decorSize = GetCachedDecorSize();
int w, h;
GTKDoGetSize(&w, &h);
if (style & wxRESIZE_BORDER)
{
gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
#ifndef __WXGTK3__
gtk_window_set_policy(GTK_WINDOW(m_widget), 1, 1, 1);
#endif
}
else
{
gtk_window_set_resizable(GTK_WINDOW(m_widget), false);
// gtk_window_set_default_size() does not work for un-resizable windows,
// unless you set the size hints, but that causes Ubuntu's WM to make
// the window resizable even though GDK_FUNC_RESIZE is not set.
gtk_widget_set_size_request(m_widget, w, h);
}
return true;
}
wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
{
if ( m_netFrameExtentsTimerId )
{
// Don't let the timer callback fire as the window pointer passed to it
// will become invalid very soon.
g_source_remove(m_netFrameExtentsTimerId);
}
#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
// it can also be a (standard) dialog
if ( HILDON_IS_WINDOW(m_widget) )
{
hildon_program_remove_window(wxTheApp->GetHildonProgram(),
HILDON_WINDOW(m_widget));
}
#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
if (m_grabbed)
{
wxFAIL_MSG(wxT("Window still grabbed"));
RemoveGrab();
}
SendDestroyEvent();
// it may also be GtkScrolledWindow in the case of an MDI child
if (GTK_IS_WINDOW(m_widget))
{
gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
}
if (g_activeFrame == this)
g_activeFrame = NULL;
if (g_lastActiveFrame == this)
g_lastActiveFrame = NULL;
}
bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
{
if (enable)
m_gdkFunc |= GDK_FUNC_CLOSE;
else
m_gdkFunc &= ~GDK_FUNC_CLOSE;
GdkWindow* window = gtk_widget_get_window(m_widget);
if (window)
gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
return true;
}
bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
{
if (show == m_fsIsShowing)
return false; // return what?
m_fsIsShowing = show;
#ifdef GDK_WINDOWING_X11
Display* xdpy = GDK_DISPLAY_XDISPLAY(gtk_widget_get_display(m_widget));
Window xroot = GDK_WINDOW_XID(gtk_widget_get_root_window(m_widget));
wxX11FullScreenMethod method = wxGetFullScreenMethodX11(xdpy, (WXWindow)xroot);
// NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
// to switch to fullscreen, which is not always available. We must
// check if WM supports the spec and use legacy methods if it
// doesn't.
if ( method == wxX11_FS_WMSPEC )
#endif // GDK_WINDOWING_X11
{
if (show)
gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
else
gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
}
#ifdef GDK_WINDOWING_X11
else
{
GdkWindow* window = gtk_widget_get_window(m_widget);
Window xid = GDK_WINDOW_XID(window);
if (show)
{
GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
GdkScreen* screen = gtk_widget_get_screen(m_widget);
const int screen_width = gdk_screen_get_width(screen);
const int screen_height = gdk_screen_get_height(screen);
gint client_x, client_y, root_x, root_y;
gint width, height;
m_fsSaveGdkFunc = m_gdkFunc;
m_fsSaveGdkDecor = m_gdkDecor;
m_gdkFunc = m_gdkDecor = 0;
gdk_window_set_decorations(window, (GdkWMDecoration)0);
gdk_window_set_functions(window, (GdkWMFunction)0);
gdk_window_get_origin(window, &root_x, &root_y);
gdk_window_get_geometry(window, &client_x, &client_y, &width, &height);
gdk_window_move_resize(
window, -client_x, -client_y, screen_width + 1, screen_height + 1);
wxSetFullScreenStateX11(xdpy,
(WXWindow)xroot,
(WXWindow)xid,
show, &m_fsSaveFrame, method);
}
else // hide
{
m_gdkFunc = m_fsSaveGdkFunc;
m_gdkDecor = m_fsSaveGdkDecor;
gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
wxSetFullScreenStateX11(xdpy,
(WXWindow)xroot,
(WXWindow)xid,
show, &m_fsSaveFrame, method);
SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
m_fsSaveFrame.width, m_fsSaveFrame.height);
}
}
#endif // GDK_WINDOWING_X11
// documented behaviour is to show the window if it's still hidden when
// showing it full screen
if (show)
Show();
return true;
}
// ----------------------------------------------------------------------------
// overridden wxWindow methods
// ----------------------------------------------------------------------------
void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
{
wxCHECK_RET( m_widget, wxT("invalid frame") );
gtk_widget_queue_draw( m_widget );
GdkWindow* window = NULL;
if (m_wxwindow)
window = gtk_widget_get_window(m_wxwindow);
if (window)
gdk_window_invalidate_rect(window, NULL, true);
}
bool wxTopLevelWindowGTK::Show( bool show )
{
wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
#ifdef GDK_WINDOWING_X11
bool deferShow = show && !m_isShown && m_deferShow;
if (deferShow)
{
deferShow = m_deferShowAllowed &&
gs_requestFrameExtentsStatus != RFE_STATUS_BROKEN &&
!gtk_widget_get_realized(m_widget) &&
g_signal_handler_find(m_widget,
GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
0, NULL, NULL, this);
if (deferShow)
{
GdkScreen* screen = gtk_widget_get_screen(m_widget);
GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
// If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
// to m_decorSize, it breaks saving/restoring window size with
// GetSize()/SetSize() because it makes window bigger between each
// restore and save.
m_updateDecorSize = deferShow;
}
m_deferShow = deferShow;
}
if (deferShow)
{
// Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
// calling gtk_widget_show() until _NET_FRAME_EXTENTS property
// notification is received, so correct frame extents are known.
// This allows resizing m_widget to keep the overall size in sync with
// what wxWidgets expects it to be without an obvious change in the
// window size immediately after it becomes visible.
// Realize m_widget, so m_widget->window can be used. Realizing normally
// causes the widget tree to be size_allocated, which generates size
// events in the wrong order. However, the size_allocates will not be
// done if the allocation is not the default (1,1).
GtkAllocation alloc;
gtk_widget_get_allocation(m_widget, &alloc);
const int alloc_width = alloc.width;
if (alloc_width == 1)
{
alloc.width = 2;
gtk_widget_set_allocation(m_widget, &alloc);
}
gtk_widget_realize(m_widget);
if (alloc_width == 1)
{
alloc.width = 1;
gtk_widget_set_allocation(m_widget, &alloc);
}
// send _NET_REQUEST_FRAME_EXTENTS
XClientMessageEvent xevent;
memset(&xevent, 0, sizeof(xevent));
xevent.type = ClientMessage;
GdkWindow* window = gtk_widget_get_window(m_widget);
xevent.window = GDK_WINDOW_XID(window);
xevent.message_type = gdk_x11_atom_to_xatom_for_display(
gdk_window_get_display(window),
gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
xevent.format = 32;
Display* display = GDK_DISPLAY_XDISPLAY(gdk_window_get_display(window));
XSendEvent(display, DefaultRootWindow(display), false,
SubstructureNotifyMask | SubstructureRedirectMask,
(XEvent*)&xevent);
if (gs_requestFrameExtentsStatus == RFE_STATUS_UNKNOWN)
{
// if WM does not respond to request within 1 second,
// we assume support for _NET_REQUEST_FRAME_EXTENTS is not working
m_netFrameExtentsTimerId =
g_timeout_add(1000, request_frame_extents_timeout, this);
}
// defer calling gtk_widget_show()
m_isShown = true;
return true;
}
#endif // GDK_WINDOWING_X11
if (show && !gtk_widget_get_realized(m_widget))
{
// size_allocate signals occur in reverse order (bottom to top).
// Things work better if the initial wxSizeEvents are sent (from the
// top down), before the initial size_allocate signals occur.
wxSizeEvent event(GetSize(), GetId());
event.SetEventObject(this);
HandleWindowEvent(event);
}
bool change = base_type::Show(show);
if (change && !show)
{
// make sure window has a non-default position, so when it is shown
// again, it won't be repositioned by WM as if it were a new window
// Note that this must be done _after_ the window is hidden.
gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
}
return change;
}
void wxTopLevelWindowGTK::ShowWithoutActivating()
{
if (!m_isShown)
{
gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
Show(true);
}
}
void wxTopLevelWindowGTK::Raise()
{
gtk_window_present( GTK_WINDOW( m_widget ) );
}
void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
{
wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
}
// ----------------------------------------------------------------------------
// window geometry
// ----------------------------------------------------------------------------
void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
{
wxSize size(m_width, m_height);
size.x -= m_decorSize.left + m_decorSize.right;
size.y -= m_decorSize.top + m_decorSize.bottom;
if (size.x < 0) size.x = 0;
if (size.y < 0) size.y = 0;
#if wxUSE_LIBHILDON2
if (width) {
if (size.x == 720)
*width = 696;
else
*width = size.x;
}
if (height) {
if (size.y == 420)
*height = 396;
else if (size.y == 270)
*height = 246;
else
*height = size.y;
}
#else // wxUSE_LIBHILDON2
if (width) *width = size.x;
if (height) *height = size.y;
#endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
}
void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
{
wxCHECK_RET( m_widget, wxT("invalid frame") );
// deal with the position first
int old_x = m_x;
int old_y = m_y;
if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
{
// -1 means "use existing" unless the flag above is specified
if ( x != -1 )
m_x = x;
if ( y != -1 )
m_y = y;
}
else // wxSIZE_ALLOW_MINUS_ONE
{
m_x = x;
m_y = y;
}
const wxSize oldSize(m_width, m_height);
if (width >= 0)
m_width = width;
if (height >= 0)
m_height = height;
ConstrainSize();
if (m_width < 1) m_width = 1;
if (m_height < 1) m_height = 1;
if ( m_x != old_x || m_y != old_y )
{
gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
wxMoveEvent event(wxPoint(m_x, m_y), GetId());
event.SetEventObject(this);
HandleWindowEvent(event);
}
if (m_width != oldSize.x || m_height != oldSize.y)
{
m_deferShowAllowed = true;
m_useCachedClientSize = false;
int w, h;
GTKDoGetSize(&w, &h);
gtk_window_resize(GTK_WINDOW(m_widget), w, h);
if (!gtk_window_get_resizable(GTK_WINDOW(m_widget)))
gtk_widget_set_size_request(GTK_WIDGET(m_widget), w, h);
DoGetClientSize(&m_clientWidth, &m_clientHeight);
wxSizeEvent event(GetSize(), GetId());
event.SetEventObject(this);
HandleWindowEvent(event);
}
}
void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
{
base_type::DoSetClientSize(width, height);
// Since client size is being explicitly set, don't change it later
// Has to be done after calling base because it calls SetSize,
// which sets this true
m_deferShowAllowed = false;
}
void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
{
wxASSERT_MSG(m_widget, wxT("invalid frame"));
if ( IsIconized() )
{
// for consistency with wxMSW, client area is supposed to be empty for
// the iconized windows
if ( width )
*width = 0;
if ( height )
*height = 0;
}
else if (m_useCachedClientSize)
base_type::DoGetClientSize(width, height);
else
{
GTKDoGetSize(width, height);
}
}
void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
int maxW, int maxH,
int incW, int incH )
{
base_type::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
m_incWidth = incW;
m_incHeight = incH;
const wxSize minSize = GetMinSize();
const wxSize maxSize = GetMaxSize();
GdkGeometry hints;
// always set both min and max hints, otherwise GTK will
// make assumptions we don't want about the unset values
int hints_mask = GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE;
hints.min_width = 1;
hints.min_height = 1;
hints.max_width = INT_MAX;
hints.max_height = INT_MAX;
const int decorSize_x = m_decorSize.left + m_decorSize.right;
const int decorSize_y = m_decorSize.top + m_decorSize.bottom;
if (minSize.x > decorSize_x)
hints.min_width = minSize.x - decorSize_x;
if (minSize.y > decorSize_y)
hints.min_height = minSize.y - decorSize_y;
if (maxSize.x > 0)
{
hints.max_width = maxSize.x - decorSize_x;
if (hints.max_width < hints.min_width)
hints.max_width = hints.min_width;
}
if (maxSize.y > 0)
{
hints.max_height = maxSize.y - decorSize_y;
if (hints.max_height < hints.min_height)
hints.max_height = hints.min_height;
}
if (incW > 0 || incH > 0)
{
hints_mask |= GDK_HINT_RESIZE_INC;
hints.width_inc = incW > 0 ? incW : 1;
hints.height_inc = incH > 0 ? incH : 1;
}
gtk_window_set_geometry_hints(
(GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
}
#ifdef GDK_WINDOWING_X11
void wxTopLevelWindowGTK::GTKUpdateDecorSize(const DecorSize& decorSize)
{
if (!IsMaximized() && !IsFullScreen())
GetCachedDecorSize() = decorSize;
if (m_updateDecorSize && memcmp(&m_decorSize, &decorSize, sizeof(DecorSize)))
{
m_useCachedClientSize = false;
const wxSize diff(
decorSize.left - m_decorSize.left + decorSize.right - m_decorSize.right,
decorSize.top - m_decorSize.top + decorSize.bottom - m_decorSize.bottom);
m_decorSize = decorSize;
bool resized = false;
if (m_minWidth > 0 || m_minHeight > 0 || m_maxWidth > 0 || m_maxHeight > 0)
{
// update size hints, they depend on m_decorSize
DoSetSizeHints(m_minWidth, m_minHeight, m_maxWidth, m_maxHeight, m_incWidth, m_incHeight);
}
if (m_deferShow)
{
// keep overall size unchanged by shrinking m_widget
int w, h;
GTKDoGetSize(&w, &h);
// but not if size would be less than minimum, it won't take effect
if (w >= m_minWidth - (decorSize.left + decorSize.right) &&
h >= m_minHeight - (decorSize.top + decorSize.bottom))
{
gtk_window_resize(GTK_WINDOW(m_widget), w, h);
if (!gtk_window_get_resizable(GTK_WINDOW(m_widget)))
gtk_widget_set_size_request(GTK_WIDGET(m_widget), w, h);
resized = true;
}
}
if (!resized)
{
// adjust overall size to match change in frame extents
m_width += diff.x;
m_height += diff.y;
if (m_width < 1) m_width = 1;
if (m_height < 1) m_height = 1;
m_clientWidth = 0;
gtk_widget_queue_resize(m_wxwindow);
}
}
if (m_deferShow)
{
// gtk_widget_show() was deferred, do it now
m_deferShow = false;
DoGetClientSize(&m_clientWidth, &m_clientHeight);
wxSizeEvent sizeEvent(GetSize(), GetId());
sizeEvent.SetEventObject(this);
HandleWindowEvent(sizeEvent);
gtk_widget_show(m_widget);
wxShowEvent showEvent(GetId(), true);
showEvent.SetEventObject(this);
HandleWindowEvent(showEvent);
}
}
#endif // GDK_WINDOWING_X11
wxTopLevelWindowGTK::DecorSize& wxTopLevelWindowGTK::GetCachedDecorSize()
{
static DecorSize size[8];
int index = 0;
// title bar
if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
index = 1;
// border
if (m_gdkDecor & GDK_DECOR_BORDER)
index |= 2;
// utility window decor can be different
if (m_windowStyle & wxFRAME_TOOL_WINDOW)
index |= 4;
return size[index];
}
void wxTopLevelWindowGTK::OnInternalIdle()
{
wxTopLevelWindowBase::OnInternalIdle();
// Synthetize activate events.
if ( g_sendActivateEvent != -1 )
{
bool activate = g_sendActivateEvent != 0;
// if (!activate) wxPrintf( wxT("de") );
// wxPrintf( wxT("activate\n") );
// do it only once
g_sendActivateEvent = -1;
wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
}
}
// ----------------------------------------------------------------------------
// frame title/icon
// ----------------------------------------------------------------------------
void wxTopLevelWindowGTK::SetTitle( const wxString &title )
{
wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
if ( title == m_title )
return;
m_title = title;
gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
}
void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
{
wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
base_type::SetIcons(icons);
// Setting icons before window is realized can cause a GTK assertion if
// another TLW is realized before this one, and it has this one as it's
// transient parent. The life demo exibits this problem.
if (gtk_widget_get_realized(m_widget))
{
GList* list = NULL;
for (size_t i = icons.GetIconCount(); i--;)
list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
g_list_free(list);
}
}
// ----------------------------------------------------------------------------
// frame state: maximized/iconized/normal
// ----------------------------------------------------------------------------
void wxTopLevelWindowGTK::Maximize(bool maximize)
{
if (maximize)
gtk_window_maximize( GTK_WINDOW( m_widget ) );
else
gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
}
bool wxTopLevelWindowGTK::IsMaximized() const
{
GdkWindow* window = NULL;
if (m_widget)
window = gtk_widget_get_window(m_widget);
return window && (gdk_window_get_state(window) & GDK_WINDOW_STATE_MAXIMIZED);
}
void wxTopLevelWindowGTK::Restore()
{
// "Present" seems similar enough to "restore"
gtk_window_present( GTK_WINDOW( m_widget ) );
}
void wxTopLevelWindowGTK::Iconize( bool iconize )
{
if (iconize)
gtk_window_iconify( GTK_WINDOW( m_widget ) );
else
gtk_window_deiconify( GTK_WINDOW( m_widget ) );
}
bool wxTopLevelWindowGTK::IsIconized() const
{
return m_isIconized;
}
void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
{
if ( iconize != m_isIconized )
{
m_isIconized = iconize;
(void)SendIconizeEvent(iconize);
}
}
void wxTopLevelWindowGTK::AddGrab()
{
if (!m_grabbed)
{
m_grabbed = true;
gtk_grab_add( m_widget );
wxGUIEventLoop().Run();
gtk_grab_remove( m_widget );
}
}
void wxTopLevelWindowGTK::RemoveGrab()
{
if (m_grabbed)
{
gtk_main_quit();
m_grabbed = false;
}
}
bool wxTopLevelWindowGTK::IsActive()
{
return (this == (wxTopLevelWindowGTK*)g_activeFrame);
}
void wxTopLevelWindowGTK::RequestUserAttention(int flags)
{
bool new_hint_value = false;
// FIXME: This is a workaround to focus handling problem
// If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
// hasn't yet been processed, and the internal focus system is not up to date yet.
// YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
// won't have side effects) - MR
wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
if(m_urgency_hint >= 0)
g_source_remove(m_urgency_hint);
m_urgency_hint = -2;
if( gtk_widget_get_realized(m_widget) && !IsActive() )
{
new_hint_value = true;
if (flags & wxUSER_ATTENTION_INFO)
{
m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
} else {
m_urgency_hint = -1;
}
}
gtk_window_set_urgency_hint(GTK_WINDOW(m_widget), new_hint_value);
}
void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
{
// Store which styles were changed
long styleChanges = style ^ m_windowStyle;
// Process wxWindow styles. This also updates the internal variable
// Therefore m_windowStyle bits carry now the _new_ style values
wxWindow::SetWindowStyleFlag(style);
// just return for now if widget does not exist yet
if (!m_widget)
return;
if ( styleChanges & wxSTAY_ON_TOP )
{
gtk_window_set_keep_above(GTK_WINDOW(m_widget),
m_windowStyle & wxSTAY_ON_TOP);
}
if ( styleChanges & wxFRAME_NO_TASKBAR )
{
gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
m_windowStyle & wxFRAME_NO_TASKBAR);
}
}
bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
{
GdkWindow* window = NULL;
if (m_widget)
window = gtk_widget_get_window(m_widget);
if (window == NULL)
return false;
#ifdef GDK_WINDOWING_X11
Display* dpy = GDK_WINDOW_XDISPLAY(window);
Window win = GDK_WINDOW_XID(window);
// Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
if (alpha == 0xff)
XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
else
{
long opacity = alpha * 0x1010101L;
XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
XA_CARDINAL, 32, PropModeReplace,
(unsigned char *) &opacity, 1L);
}
XSync(dpy, False);
return true;
#else // !GDK_WINDOWING_X11
return false;
#endif // GDK_WINDOWING_X11 / !GDK_WINDOWING_X11
}
bool wxTopLevelWindowGTK::CanSetTransparent()
{
// allow to override automatic detection as it's far from perfect
const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
{
return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
}
#ifdef __WXGTK3__
return gtk_widget_is_composited(m_widget) != 0;
#else
#if GTK_CHECK_VERSION(2,10,0)
if (!gtk_check_version(2,10,0))
{
return gtk_widget_is_composited(m_widget) != 0;
}
else
#endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
{
return false;
}
#endif // !__WXGTK3__
#if 0 // Don't be optimistic here for the sake of wxAUI
int opcode, event, error;
// Check for the existence of a RGBA visual instead?
return XQueryExtension(gdk_x11_get_default_xdisplay (),
"Composite", &opcode, &event, &error);
#endif
}
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