62be94e1b1
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25987 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
665 lines
17 KiB
C++
665 lines
17 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: app.cpp
|
|
// Purpose:
|
|
// Author: Robert Roebling
|
|
// Id: $Id$
|
|
// Copyright: (c) 1998 Robert Roebling, Julian Smart
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
|
|
#pragma implementation "app.h"
|
|
#endif
|
|
|
|
#ifdef __VMS
|
|
// vms_jackets.h should for proper working be included before anything else
|
|
# include <vms_jackets.h>
|
|
#undef ConnectionNumber
|
|
#endif
|
|
|
|
// For compilers that support precompilation, includes "wx.h".
|
|
#include "wx/wxprec.h"
|
|
|
|
#include "wx/app.h"
|
|
#include "wx/gdicmn.h"
|
|
#include "wx/utils.h"
|
|
#include "wx/intl.h"
|
|
#include "wx/log.h"
|
|
#include "wx/memory.h"
|
|
#include "wx/font.h"
|
|
#include "wx/settings.h"
|
|
#include "wx/dialog.h"
|
|
#include "wx/msgdlg.h"
|
|
#include "wx/file.h"
|
|
#include "wx/filename.h"
|
|
#include "wx/module.h"
|
|
#include "wx/image.h"
|
|
|
|
#ifdef __WXGPE__
|
|
#include <gpe/init.h>
|
|
#endif
|
|
|
|
#ifdef __WXUNIVERSAL__
|
|
#include "wx/univ/theme.h"
|
|
#include "wx/univ/renderer.h"
|
|
#endif
|
|
|
|
#if wxUSE_THREADS
|
|
#include "wx/thread.h"
|
|
#endif
|
|
|
|
#include <unistd.h>
|
|
|
|
#ifdef HAVE_POLL
|
|
#if defined(__VMS)
|
|
#include <poll.h>
|
|
#else
|
|
// bug in the OpenBSD headers: at least in 3.1 there is no extern "C"
|
|
// in neither poll.h nor sys/poll.h which results in link errors later
|
|
#ifdef __OPENBSD__
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
#include <sys/poll.h>
|
|
|
|
#ifdef __OPENBSD__
|
|
};
|
|
#endif
|
|
#endif // platform
|
|
#else // !HAVE_POLL
|
|
// we implement poll() ourselves using select() which is supposed exist in
|
|
// all modern Unices
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
#endif // HAVE_POLL/!HAVE_POLL
|
|
|
|
#include "wx/gtk/win_gtk.h"
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// global data
|
|
//-----------------------------------------------------------------------------
|
|
|
|
bool g_mainThreadLocked = FALSE;
|
|
gint g_pendingTag = 0;
|
|
|
|
static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// idle system
|
|
//-----------------------------------------------------------------------------
|
|
|
|
extern bool g_isIdle;
|
|
|
|
void wxapp_install_idle_handler();
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxYield
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// not static because used by textctrl.cpp
|
|
//
|
|
// MT-FIXME
|
|
bool wxIsInsideYield = FALSE;
|
|
|
|
bool wxApp::Yield(bool onlyIfNeeded)
|
|
{
|
|
if ( wxIsInsideYield )
|
|
{
|
|
if ( !onlyIfNeeded )
|
|
{
|
|
wxFAIL_MSG( wxT("wxYield called recursively" ) );
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
#if wxUSE_THREADS
|
|
if ( !wxThread::IsMain() )
|
|
{
|
|
// can't call gtk_main_iteration() from other threads like this
|
|
return TRUE;
|
|
}
|
|
#endif // wxUSE_THREADS
|
|
|
|
wxIsInsideYield = TRUE;
|
|
|
|
if (!g_isIdle)
|
|
{
|
|
// We need to remove idle callbacks or the loop will
|
|
// never finish.
|
|
gtk_idle_remove( m_idleTag );
|
|
m_idleTag = 0;
|
|
g_isIdle = TRUE;
|
|
}
|
|
|
|
// disable log flushing from here because a call to wxYield() shouldn't
|
|
// normally result in message boxes popping up &c
|
|
wxLog::Suspend();
|
|
|
|
while (gtk_events_pending())
|
|
gtk_main_iteration();
|
|
|
|
// It's necessary to call ProcessIdle() to update the frames sizes which
|
|
// might have been changed (it also will update other things set from
|
|
// OnUpdateUI() which is a nice (and desired) side effect). But we
|
|
// call ProcessIdle() only once since this is not meant for longish
|
|
// background jobs (controlled by wxIdleEvent::RequestMore() and the
|
|
// return value of Processidle().
|
|
ProcessIdle();
|
|
|
|
// let the logs be flashed again
|
|
wxLog::Resume();
|
|
|
|
wxIsInsideYield = FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxWakeUpIdle
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void wxApp::WakeUpIdle()
|
|
{
|
|
#if wxUSE_THREADS
|
|
if (!wxThread::IsMain())
|
|
wxMutexGuiEnter();
|
|
#endif
|
|
|
|
if (g_isIdle)
|
|
wxapp_install_idle_handler();
|
|
|
|
#if wxUSE_THREADS
|
|
if (!wxThread::IsMain())
|
|
wxMutexGuiLeave();
|
|
#endif
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// local functions
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// the callback functions must be extern "C" to comply with GTK+ declarations
|
|
extern "C"
|
|
{
|
|
|
|
static gint wxapp_pending_callback( gpointer WXUNUSED(data) )
|
|
{
|
|
if (!wxTheApp) return TRUE;
|
|
|
|
// When getting called from GDK's time-out handler
|
|
// we are no longer within GDK's grab on the GUI
|
|
// thread so we must lock it here ourselves.
|
|
gdk_threads_enter();
|
|
|
|
// Sent idle event to all who request them.
|
|
wxTheApp->ProcessPendingEvents();
|
|
|
|
g_pendingTag = 0;
|
|
|
|
// Flush the logged messages if any.
|
|
#if wxUSE_LOG
|
|
wxLog::FlushActive();
|
|
#endif // wxUSE_LOG
|
|
|
|
// Release lock again
|
|
gdk_threads_leave();
|
|
|
|
// Return FALSE to indicate that no more idle events are
|
|
// to be sent (single shot instead of continuous stream)
|
|
return FALSE;
|
|
}
|
|
|
|
static gint wxapp_idle_callback( gpointer WXUNUSED(data) )
|
|
{
|
|
if (!wxTheApp)
|
|
return TRUE;
|
|
|
|
#ifdef __WXDEBUG__
|
|
// don't generate the idle events while the assert modal dialog is shown,
|
|
// this completely confuses the apps which don't expect to be reentered
|
|
// from some safely-looking functions
|
|
if ( wxTheApp->IsInAssert() )
|
|
{
|
|
// But repaint the assertion message if necessary
|
|
if (wxTopLevelWindows.GetCount() > 0)
|
|
{
|
|
wxWindow* win = (wxWindow*) wxTopLevelWindows.GetLast()->GetData();
|
|
#ifdef __WXGTK20__
|
|
if (win->IsKindOf(CLASSINFO(wxMessageDialog)))
|
|
#else
|
|
if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog)))
|
|
#endif
|
|
win->OnInternalIdle();
|
|
}
|
|
return TRUE;
|
|
}
|
|
#endif // __WXDEBUG__
|
|
|
|
// When getting called from GDK's time-out handler
|
|
// we are no longer within GDK's grab on the GUI
|
|
// thread so we must lock it here ourselves.
|
|
gdk_threads_enter();
|
|
|
|
// Indicate that we are now in idle mode and event handlers
|
|
// will have to reinstall the idle handler again.
|
|
g_isIdle = TRUE;
|
|
wxTheApp->m_idleTag = 0;
|
|
|
|
// Send idle event to all who request them as long as
|
|
// no events have popped up in the event queue.
|
|
while (wxTheApp->ProcessIdle() && (gtk_events_pending() == 0))
|
|
;
|
|
|
|
// Release lock again
|
|
gdk_threads_leave();
|
|
|
|
// Return FALSE to indicate that no more idle events are
|
|
// to be sent (single shot instead of continuous stream).
|
|
return FALSE;
|
|
}
|
|
|
|
#if wxUSE_THREADS
|
|
|
|
#ifdef HAVE_POLL
|
|
#define wxPoll poll
|
|
#define wxPollFd pollfd
|
|
#else // !HAVE_POLL
|
|
|
|
typedef GPollFD wxPollFd;
|
|
|
|
int wxPoll(wxPollFd *ufds, unsigned int nfds, int timeout)
|
|
{
|
|
// convert timeout from ms to struct timeval (s/us)
|
|
timeval tv_timeout;
|
|
tv_timeout.tv_sec = timeout/1000;
|
|
tv_timeout.tv_usec = (timeout%1000)*1000;
|
|
|
|
// remember the highest fd used here
|
|
int fdMax = -1;
|
|
|
|
// and fill the sets for select()
|
|
fd_set readfds;
|
|
fd_set writefds;
|
|
fd_set exceptfds;
|
|
FD_ZERO(&readfds);
|
|
FD_ZERO(&writefds);
|
|
FD_ZERO(&exceptfds);
|
|
|
|
unsigned int i;
|
|
for ( i = 0; i < nfds; i++ )
|
|
{
|
|
wxASSERT_MSG( ufds[i].fd < FD_SETSIZE, _T("fd out of range") );
|
|
|
|
if ( ufds[i].events & G_IO_IN )
|
|
FD_SET(ufds[i].fd, &readfds);
|
|
|
|
if ( ufds[i].events & G_IO_PRI )
|
|
FD_SET(ufds[i].fd, &exceptfds);
|
|
|
|
if ( ufds[i].events & G_IO_OUT )
|
|
FD_SET(ufds[i].fd, &writefds);
|
|
|
|
if ( ufds[i].fd > fdMax )
|
|
fdMax = ufds[i].fd;
|
|
}
|
|
|
|
fdMax++;
|
|
int res = select(fdMax, &readfds, &writefds, &exceptfds, &tv_timeout);
|
|
|
|
// translate the results back
|
|
for ( i = 0; i < nfds; i++ )
|
|
{
|
|
ufds[i].revents = 0;
|
|
|
|
if ( FD_ISSET(ufds[i].fd, &readfds ) )
|
|
ufds[i].revents |= G_IO_IN;
|
|
|
|
if ( FD_ISSET(ufds[i].fd, &exceptfds ) )
|
|
ufds[i].revents |= G_IO_PRI;
|
|
|
|
if ( FD_ISSET(ufds[i].fd, &writefds ) )
|
|
ufds[i].revents |= G_IO_OUT;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
#endif // HAVE_POLL/!HAVE_POLL
|
|
|
|
static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )
|
|
{
|
|
gdk_threads_enter();
|
|
|
|
wxMutexGuiLeave();
|
|
g_mainThreadLocked = TRUE;
|
|
|
|
// we rely on the fact that glib GPollFD struct is really just pollfd but
|
|
// I wonder how wise is this in the long term (VZ)
|
|
gint res = wxPoll( (wxPollFd *) ufds, nfds, timeout );
|
|
|
|
wxMutexGuiEnter();
|
|
g_mainThreadLocked = FALSE;
|
|
|
|
gdk_threads_leave();
|
|
|
|
return res;
|
|
}
|
|
|
|
#endif // wxUSE_THREADS
|
|
|
|
} // extern "C"
|
|
|
|
void wxapp_install_idle_handler()
|
|
{
|
|
// GD: this assert is raised when using the thread sample (which works)
|
|
// so the test is probably not so easy. Can widget callbacks be
|
|
// triggered from child threads and, if so, for which widgets?
|
|
// wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") );
|
|
|
|
wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
|
|
|
|
g_isIdle = FALSE;
|
|
|
|
if (g_pendingTag == 0)
|
|
g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL );
|
|
|
|
// This routine gets called by all event handlers
|
|
// indicating that the idle is over. It may also
|
|
// get called from other thread for sending events
|
|
// to the main thread (and processing these in
|
|
// idle time). Very low priority.
|
|
wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Access to the root window global
|
|
//-----------------------------------------------------------------------------
|
|
|
|
GtkWidget* wxGetRootWindow()
|
|
{
|
|
if (gs_RootWindow == NULL)
|
|
{
|
|
gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
|
|
gtk_widget_realize( gs_RootWindow );
|
|
}
|
|
return gs_RootWindow;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxApp
|
|
//-----------------------------------------------------------------------------
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
|
|
|
|
BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
|
|
EVT_IDLE(wxAppBase::OnIdle)
|
|
END_EVENT_TABLE()
|
|
|
|
wxApp::wxApp()
|
|
{
|
|
#ifdef __WXDEBUG__
|
|
m_isInAssert = FALSE;
|
|
#endif // __WXDEBUG__
|
|
|
|
m_idleTag = 0;
|
|
wxapp_install_idle_handler();
|
|
|
|
#if wxUSE_THREADS
|
|
g_main_set_poll_func( wxapp_poll_func );
|
|
#endif
|
|
|
|
m_colorCube = (unsigned char*) NULL;
|
|
|
|
// this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
|
|
m_glVisualInfo = (void *) NULL;
|
|
}
|
|
|
|
wxApp::~wxApp()
|
|
{
|
|
if (m_idleTag) gtk_idle_remove( m_idleTag );
|
|
|
|
if (m_colorCube) free(m_colorCube);
|
|
}
|
|
|
|
bool wxApp::OnInitGui()
|
|
{
|
|
if ( !wxAppBase::OnInitGui() )
|
|
return FALSE;
|
|
|
|
GdkVisual *visual = gdk_visual_get_system();
|
|
|
|
// if this is a wxGLApp (derived from wxApp), and we've already
|
|
// chosen a specific visual, then derive the GdkVisual from that
|
|
if (m_glVisualInfo != NULL)
|
|
{
|
|
#ifdef __WXGTK20__
|
|
// seems gtk_widget_set_default_visual no longer exists?
|
|
GdkVisual* vis = gtk_widget_get_default_visual();
|
|
#else
|
|
GdkVisual* vis = gdkx_visual_get(
|
|
((XVisualInfo *) m_glVisualInfo) ->visualid );
|
|
gtk_widget_set_default_visual( vis );
|
|
#endif
|
|
|
|
GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
|
|
gtk_widget_set_default_colormap( colormap );
|
|
|
|
visual = vis;
|
|
}
|
|
|
|
// On some machines, the default visual is just 256 colours, so
|
|
// we make sure we get the best. This can sometimes be wasteful.
|
|
|
|
else
|
|
if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual))
|
|
{
|
|
#ifdef __WXGTK20__
|
|
/* seems gtk_widget_set_default_visual no longer exists? */
|
|
GdkVisual* vis = gtk_widget_get_default_visual();
|
|
#else
|
|
GdkVisual* vis = gdk_visual_get_best();
|
|
gtk_widget_set_default_visual( vis );
|
|
#endif
|
|
|
|
GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
|
|
gtk_widget_set_default_colormap( colormap );
|
|
|
|
visual = vis;
|
|
}
|
|
|
|
// Nothing to do for 15, 16, 24, 32 bit displays
|
|
if (visual->depth > 8) return TRUE;
|
|
|
|
// initialize color cube for 8-bit color reduction dithering
|
|
|
|
GdkColormap *cmap = gtk_widget_get_default_colormap();
|
|
|
|
m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
|
|
|
|
for (int r = 0; r < 32; r++)
|
|
{
|
|
for (int g = 0; g < 32; g++)
|
|
{
|
|
for (int b = 0; b < 32; b++)
|
|
{
|
|
int rr = (r << 3) | (r >> 2);
|
|
int gg = (g << 3) | (g >> 2);
|
|
int bb = (b << 3) | (b >> 2);
|
|
|
|
int index = -1;
|
|
|
|
GdkColor *colors = cmap->colors;
|
|
if (colors)
|
|
{
|
|
int max = 3 * 65536;
|
|
|
|
for (int i = 0; i < cmap->size; i++)
|
|
{
|
|
int rdiff = ((rr << 8) - colors[i].red);
|
|
int gdiff = ((gg << 8) - colors[i].green);
|
|
int bdiff = ((bb << 8) - colors[i].blue);
|
|
int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
|
|
if (sum < max)
|
|
{
|
|
index = i; max = sum;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// assume 8-bit true or static colors. this really exists
|
|
GdkVisual* vis = gdk_colormap_get_visual( cmap );
|
|
index = (r >> (5 - vis->red_prec)) << vis->red_shift;
|
|
index |= (g >> (5 - vis->green_prec)) << vis->green_shift;
|
|
index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift;
|
|
}
|
|
m_colorCube[ (r*1024) + (g*32) + b ] = index;
|
|
}
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GdkVisual *wxApp::GetGdkVisual()
|
|
{
|
|
GdkVisual *visual = NULL;
|
|
|
|
if (m_glVisualInfo)
|
|
visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid );
|
|
else
|
|
visual = gdk_window_get_visual( wxGetRootWindow()->window );
|
|
|
|
wxASSERT( visual );
|
|
|
|
return visual;
|
|
}
|
|
|
|
bool wxApp::Initialize(int& argc, wxChar **argv)
|
|
{
|
|
#if wxUSE_THREADS
|
|
// GTK 1.2 up to version 1.2.3 has broken threads
|
|
if ((gtk_major_version == 1) &&
|
|
(gtk_minor_version == 2) &&
|
|
(gtk_micro_version < 4))
|
|
{
|
|
printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
|
|
}
|
|
else
|
|
{
|
|
if (!g_thread_supported())
|
|
g_thread_init(NULL);
|
|
}
|
|
#endif // wxUSE_THREADS
|
|
|
|
gtk_set_locale();
|
|
|
|
// We should have the wxUSE_WCHAR_T test on the _outside_
|
|
#if wxUSE_WCHAR_T
|
|
#if defined(__WXGTK20__)
|
|
// gtk+ 2.0 supports Unicode through UTF-8 strings
|
|
wxConvCurrent = &wxConvUTF8;
|
|
#else // GTK 1.x
|
|
if (!wxOKlibc())
|
|
wxConvCurrent = &wxConvLocal;
|
|
#endif
|
|
#else // !wxUSE_WCHAR_T
|
|
if (!wxOKlibc())
|
|
wxConvCurrent = (wxMBConv*) NULL;
|
|
#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
|
|
|
|
#if wxUSE_UNICODE
|
|
// gtk_init() wants UTF-8, not wchar_t, so convert
|
|
int i;
|
|
char **argvGTK = new char *[argc + 1];
|
|
for ( i = 0; i < argc; i++ )
|
|
{
|
|
argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv[i]));
|
|
}
|
|
|
|
argvGTK[argc] = NULL;
|
|
|
|
int argcGTK = argc;
|
|
|
|
#ifdef __WXGPE__
|
|
gpe_application_init( &argcGTK, &argvGTK );
|
|
#else
|
|
gtk_init( &argcGTK, &argvGTK );
|
|
#endif
|
|
|
|
if ( argcGTK != argc )
|
|
{
|
|
// we have to drop the parameters which were consumed by GTK+
|
|
for ( i = 0; i < argcGTK; i++ )
|
|
{
|
|
while ( strcmp(wxConvUTF8.cWX2MB(argv[i]), argvGTK[i]) != 0 )
|
|
{
|
|
memmove(argv + i, argv + i + 1, argc - i);
|
|
}
|
|
}
|
|
|
|
argc = argcGTK;
|
|
}
|
|
//else: gtk_init() didn't modify our parameters
|
|
|
|
// free our copy
|
|
for ( i = 0; i < argcGTK; i++ )
|
|
{
|
|
free(argvGTK[i]);
|
|
}
|
|
|
|
delete [] argvGTK;
|
|
#else // !wxUSE_UNICODE
|
|
// gtk_init() shouldn't actually change argv itself (just its contents) so
|
|
// it's ok to pass pointer to it
|
|
gtk_init( &argc, &argv );
|
|
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
|
|
|
|
// we can not enter threads before gtk_init is done
|
|
gdk_threads_enter();
|
|
|
|
if ( !wxAppBase::Initialize(argc, argv) )
|
|
{
|
|
gdk_threads_leave();
|
|
|
|
return false;
|
|
}
|
|
|
|
wxSetDetectableAutoRepeat( TRUE );
|
|
|
|
#if wxUSE_INTL
|
|
wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
|
|
#endif
|
|
|
|
wxGetRootWindow();
|
|
|
|
return true;
|
|
}
|
|
|
|
void wxApp::CleanUp()
|
|
{
|
|
gdk_threads_leave();
|
|
|
|
wxAppBase::CleanUp();
|
|
}
|
|
|
|
#ifdef __WXDEBUG__
|
|
|
|
void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg)
|
|
{
|
|
m_isInAssert = TRUE;
|
|
|
|
wxAppBase::OnAssert(file, line, cond, msg);
|
|
|
|
m_isInAssert = FALSE;
|
|
}
|
|
|
|
#endif // __WXDEBUG__
|
|
|