798 lines
23 KiB
C++
798 lines
23 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/x11/app.cpp
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// Purpose: wxApp
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// Author: Julian Smart
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// Modified by:
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// Created: 17/09/98
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// for compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#include "wx/app.h"
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#ifndef WX_PRECOMP
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#include "wx/hash.h"
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#include "wx/intl.h"
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#include "wx/log.h"
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#include "wx/utils.h"
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#include "wx/frame.h"
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#include "wx/icon.h"
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#include "wx/dialog.h"
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#include "wx/memory.h"
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#include "wx/gdicmn.h"
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#include "wx/module.h"
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#include "wx/crt.h"
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#endif
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#include "wx/evtloop.h"
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#include "wx/filename.h"
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#include "wx/univ/theme.h"
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#include "wx/univ/renderer.h"
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#include "wx/generic/private/timer.h"
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#if wxUSE_THREADS
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#include "wx/thread.h"
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#endif
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#include "wx/clipbrd.h"
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#include "wx/x11/private.h"
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#include <string.h>
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//------------------------------------------------------------------------
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// global data
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//------------------------------------------------------------------------
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wxWindowHash *wxWidgetHashTable = NULL;
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wxWindowHash *wxClientWidgetHashTable = NULL;
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static bool g_showIconic = false;
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static wxSize g_initialSize = wxDefaultSize;
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// This is required for wxFocusEvent::SetWindow(). It will only
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// work for focus events which we provoke ourselves (by calling
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// SetFocus()). It will not work for those events, which X11
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// generates itself.
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static wxWindow *g_nextFocus = NULL;
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static wxWindow *g_prevFocus = NULL;
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//------------------------------------------------------------------------
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// X11 clipboard event handling
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//------------------------------------------------------------------------
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extern "C" void wxClipboardHandleSelectionRequest(XEvent event);
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//------------------------------------------------------------------------
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// X11 error handling
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//------------------------------------------------------------------------
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typedef int (*XErrorHandlerFunc)(Display *, XErrorEvent *);
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XErrorHandlerFunc gs_pfnXErrorHandler = 0;
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static int wxXErrorHandler(Display *dpy, XErrorEvent *xevent)
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{
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// just forward to the default handler for now
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if (gs_pfnXErrorHandler)
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return gs_pfnXErrorHandler(dpy, xevent);
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else
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return 0;
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}
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//------------------------------------------------------------------------
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// wxApp
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//------------------------------------------------------------------------
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long wxApp::sm_lastMessageTime = 0;
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wxIMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler);
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bool wxApp::Initialize(int& argC, wxChar **argV)
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{
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#if !wxUSE_NANOX
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// install the X error handler
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gs_pfnXErrorHandler = XSetErrorHandler( wxXErrorHandler );
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#endif
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wxString displayName;
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bool syncDisplay = false;
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int argCOrig = argC;
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for ( int i = 0; i < argCOrig; i++ )
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{
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if (wxStrcmp( argV[i], wxT("-display") ) == 0)
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{
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if (i < (argCOrig - 1))
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{
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argV[i++] = NULL;
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displayName = argV[i];
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argV[i] = NULL;
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argC -= 2;
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}
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}
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else if (wxStrcmp( argV[i], wxT("-geometry") ) == 0)
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{
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if (i < (argCOrig - 1))
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{
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argV[i++] = NULL;
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int w, h;
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if (wxSscanf(argV[i], wxT("%dx%d"), &w, &h) != 2)
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{
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wxLogError( _("Invalid geometry specification '%s'"),
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wxString(argV[i]).c_str() );
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}
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else
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{
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g_initialSize = wxSize(w, h);
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}
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argV[i] = NULL;
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argC -= 2;
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}
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}
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else if (wxStrcmp( argV[i], wxT("-sync") ) == 0)
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{
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syncDisplay = true;
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argV[i] = NULL;
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argC--;
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}
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else if (wxStrcmp( argV[i], wxT("-iconic") ) == 0)
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{
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g_showIconic = true;
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argV[i] = NULL;
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argC--;
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}
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}
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if ( argC != argCOrig )
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{
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// remove the arguments we consumed
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for ( int i = 0; i < argC; i++ )
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{
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while ( !argV[i] )
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{
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memmove(argV + i, argV + i + 1, (argCOrig - i)*sizeof(wxChar *));
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}
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}
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}
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// open and set up the X11 display
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if ( !wxSetDisplay(displayName) )
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{
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wxLogError(_("wxWidgets could not open display. Exiting."));
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return false;
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}
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Display *dpy = wxGlobalDisplay();
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if (syncDisplay)
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XSynchronize(dpy, True);
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XSelectInput(dpy, XDefaultRootWindow(dpy), PropertyChangeMask);
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wxSetDetectableAutoRepeat( true );
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if ( !wxAppBase::Initialize(argC, argV) )
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return false;
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#if wxUSE_UNICODE
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// Glib's type system required by Pango (deprecated since glib 2.36 but
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// used to be required, so still call it, it's harmless).
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wxGCC_WARNING_SUPPRESS(deprecated-declarations)
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g_type_init();
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wxGCC_WARNING_RESTORE()
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#endif
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#if wxUSE_INTL
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wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
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#endif
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wxWidgetHashTable = new wxWindowHash;
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wxClientWidgetHashTable = new wxWindowHash;
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return true;
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}
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void wxApp::CleanUp()
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{
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wxDELETE(wxWidgetHashTable);
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wxDELETE(wxClientWidgetHashTable);
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wxAppBase::CleanUp();
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}
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wxApp::wxApp()
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{
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m_mainColormap = NULL;
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m_topLevelWidget = NULL;
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m_maxRequestSize = 0;
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m_showIconic = false;
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m_initialSize = wxDefaultSize;
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#if !wxUSE_NANOX
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m_visualInfo = NULL;
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#endif
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}
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wxApp::~wxApp()
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{
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#if !wxUSE_NANOX
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delete m_visualInfo;
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#endif
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}
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#if !wxUSE_NANOX
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//-----------------------------------------------------------------------
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// X11 predicate function for exposure compression
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//-----------------------------------------------------------------------
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struct wxExposeInfo
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{
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Window window;
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Bool found_non_matching;
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};
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extern "C"
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Bool wxX11ExposePredicate (Display *WXUNUSED(display), XEvent *xevent, XPointer arg)
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{
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wxExposeInfo *info = (wxExposeInfo*) arg;
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if (info->found_non_matching)
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return FALSE;
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if (xevent->xany.type != Expose)
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{
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info->found_non_matching = true;
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return FALSE;
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}
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if (xevent->xexpose.window != info->window)
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{
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info->found_non_matching = true;
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return FALSE;
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}
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return TRUE;
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}
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#endif // wxUSE_NANOX
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//-----------------------------------------------------------------------
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// Processes an X event, returning true if the event was processed.
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//-----------------------------------------------------------------------
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bool wxApp::ProcessXEvent(WXEvent* _event)
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{
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XEvent* event = (XEvent*) _event;
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wxWindow* win = NULL;
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Window window = XEventGetWindow(event);
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#if 0
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Window actualWindow = window;
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#endif
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// Find the first wxWindow that corresponds to this event window
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// Because we're receiving events after a window
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// has been destroyed, assume a 1:1 match between
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// Window and wxWindow, so if it's not in the table,
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// it must have been destroyed.
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win = wxGetWindowFromTable(window);
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if (!win)
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{
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#if wxUSE_TWO_WINDOWS
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win = wxGetClientWindowFromTable(window);
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if (!win)
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#endif
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return false;
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}
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switch (event->type)
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{
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case Expose:
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{
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#if wxUSE_TWO_WINDOWS && !wxUSE_NANOX
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if (event->xexpose.window != (Window)win->GetClientAreaWindow())
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{
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XEvent tmp_event;
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wxExposeInfo info;
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info.window = event->xexpose.window;
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info.found_non_matching = false;
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while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, wxX11ExposePredicate, (XPointer) &info ))
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{
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// Don't worry about optimizing redrawing the border etc.
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}
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win->NeedUpdateNcAreaInIdle();
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}
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else
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#endif
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{
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win->GetUpdateRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
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XExposeEventGetWidth(event), XExposeEventGetHeight(event));
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win->GetClearRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
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XExposeEventGetWidth(event), XExposeEventGetHeight(event));
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#if !wxUSE_NANOX
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XEvent tmp_event;
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wxExposeInfo info;
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info.window = event->xexpose.window;
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info.found_non_matching = false;
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while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, wxX11ExposePredicate, (XPointer) &info ))
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{
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win->GetUpdateRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
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tmp_event.xexpose.width, tmp_event.xexpose.height );
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win->GetClearRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
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tmp_event.xexpose.width, tmp_event.xexpose.height );
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}
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#endif
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// This simplifies the expose and clear areas to simple
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// rectangles.
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win->GetUpdateRegion() = win->GetUpdateRegion().GetBox();
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win->GetClearRegion() = win->GetClearRegion().GetBox();
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// If we only have one X11 window, always indicate
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// that borders might have to be redrawn.
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if (win->X11GetMainWindow() == win->GetClientAreaWindow())
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win->NeedUpdateNcAreaInIdle();
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// Only erase background, paint in idle time.
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win->SendEraseEvents();
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// EXPERIMENT
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//win->Update();
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}
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return true;
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}
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#if !wxUSE_NANOX
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case GraphicsExpose:
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{
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wxLogTrace( wxT("expose"), wxT("GraphicsExpose from %s"), win->GetName().c_str());
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win->GetUpdateRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
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event->xgraphicsexpose.width, event->xgraphicsexpose.height);
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win->GetClearRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
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event->xgraphicsexpose.width, event->xgraphicsexpose.height);
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if (event->xgraphicsexpose.count == 0)
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{
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// Only erase background, paint in idle time.
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win->SendEraseEvents();
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// win->Update();
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}
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return true;
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}
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#endif
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case KeyPress:
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{
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if (!win->IsEnabled())
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return false;
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wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
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wxTranslateKeyEvent(keyEvent, win, window, event);
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// wxLogDebug( "OnKey from %s", win->GetName().c_str() );
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// We didn't process wxEVT_KEY_DOWN, so send wxEVT_CHAR
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if (win->HandleWindowEvent( keyEvent ))
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return true;
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// Do the translation again, retaining the ASCII
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// code.
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if ( wxTranslateKeyEvent(keyEvent, win, window, event, true) )
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{
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switch ( keyEvent.m_keyCode )
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{
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// for modifiers, don't send wxEVT_CHAR event.
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// the definition of Modifiers, plese see the doc of
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// wxKeyModifier. we only take care of wxMOD_ALT, wxMOD_CONTROL
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// wxMOD_SHIFT under X11 platform. Other modifiers is handled
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// by window manager.
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case WXK_CONTROL:
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case WXK_SHIFT:
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case WXK_ALT:
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break;
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default:
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{
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// process wxEVT_CHAR here
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keyEvent.SetEventType(wxEVT_CHAR);
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if ( win->HandleWindowEvent( keyEvent ) )
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return true;
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}
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}
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}
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if ( (keyEvent.m_keyCode == WXK_TAB) &&
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win->GetParent() && (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
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{
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wxNavigationKeyEvent new_event;
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new_event.SetEventObject( win->GetParent() );
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/* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
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new_event.SetDirection( (keyEvent.m_keyCode == WXK_TAB) );
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/* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
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new_event.SetWindowChange( keyEvent.ControlDown() );
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new_event.SetCurrentFocus( win );
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return win->GetParent()->HandleWindowEvent( new_event );
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}
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return false;
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}
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case KeyRelease:
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{
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if (!win->IsEnabled())
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return false;
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wxKeyEvent keyEvent(wxEVT_KEY_UP);
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wxTranslateKeyEvent(keyEvent, win, window, event);
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// if recieve the modifiers key up. set the corresponding
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// keyboardState to false.
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switch ( keyEvent.m_keyCode )
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{
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case WXK_CONTROL:
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keyEvent.SetControlDown(false);
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break;
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case WXK_SHIFT:
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keyEvent.SetShiftDown(false);
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break;
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case WXK_ALT:
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keyEvent.SetAltDown(false);
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break;
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default:
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break;
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}
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return win->HandleWindowEvent( keyEvent );
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}
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case ConfigureNotify:
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{
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#if wxUSE_NANOX
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if (event->update.utype == GR_UPDATE_SIZE)
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#endif
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{
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wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
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if ( tlw )
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{
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tlw->SetConfigureGeometry( XConfigureEventGetX(event), XConfigureEventGetY(event),
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XConfigureEventGetWidth(event), XConfigureEventGetHeight(event) );
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}
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if ( tlw && tlw->IsShown() )
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{
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tlw->SetNeedResizeInIdle();
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}
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else
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{
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wxSizeEvent sizeEvent( wxSize(XConfigureEventGetWidth(event), XConfigureEventGetHeight(event)), win->GetId() );
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sizeEvent.SetEventObject( win );
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return win->HandleWindowEvent( sizeEvent );
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}
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}
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return false;
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}
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#if !wxUSE_NANOX
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case PropertyNotify:
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return HandlePropertyChange(_event);
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case ClientMessage:
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{
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if (!win->IsEnabled())
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return false;
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Atom wm_delete_window = XInternAtom(wxGlobalDisplay(), "WM_DELETE_WINDOW", True);
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Atom wm_protocols = XInternAtom(wxGlobalDisplay(), "WM_PROTOCOLS", True);
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if (event->xclient.message_type == wm_protocols)
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{
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if ((Atom) (event->xclient.data.l[0]) == wm_delete_window)
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{
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win->Close(false);
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return true;
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}
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}
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return false;
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}
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case SelectionRequest:
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{
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// A request to paste has occurred.
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wxClipboardHandleSelectionRequest(*event);
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// The event handle doesn't care the clipboard
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// how to response requestor, so just return true.
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return true;
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}
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#if 0
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case DestroyNotify:
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{
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printf( "destroy from %s\n", win->GetName().c_str() );
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break;
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}
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case CreateNotify:
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{
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printf( "create from %s\n", win->GetName().c_str() );
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break;
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}
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case MapRequest:
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{
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printf( "map request from %s\n", win->GetName().c_str() );
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break;
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}
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case ResizeRequest:
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{
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printf( "resize request from %s\n", win->GetName().c_str() );
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Display *disp = (Display*) wxGetDisplay();
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XEvent report;
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// to avoid flicker
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report = * event;
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while( XCheckTypedWindowEvent (disp, actualWindow, ResizeRequest, &report));
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wxSize sz = win->GetSize();
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wxSizeEvent sizeEvent(sz, win->GetId());
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sizeEvent.SetEventObject(win);
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return win->HandleWindowEvent( sizeEvent );
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}
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#endif
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#endif
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#if wxUSE_NANOX
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case GR_EVENT_TYPE_CLOSE_REQ:
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{
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if (win)
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{
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win->Close(false);
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return true;
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}
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return false;
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break;
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}
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#endif
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case EnterNotify:
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case LeaveNotify:
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case ButtonPress:
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case ButtonRelease:
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case MotionNotify:
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{
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if (!win->IsEnabled())
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return false;
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// Here we check if the top level window is
|
|
// disabled, which is one aspect of modality.
|
|
wxWindow *tlw = win;
|
|
while (tlw && !tlw->IsTopLevel())
|
|
tlw = tlw->GetParent();
|
|
if (tlw && !tlw->IsEnabled())
|
|
return false;
|
|
|
|
if (event->type == ButtonPress)
|
|
{
|
|
if ((win != wxWindow::FindFocus()) && win->CanAcceptFocus())
|
|
{
|
|
// This might actually be done in wxWindow::SetFocus()
|
|
// and not here. TODO.
|
|
g_prevFocus = wxWindow::FindFocus();
|
|
g_nextFocus = win;
|
|
|
|
wxLogTrace( wxT("focus"), wxT("About to call SetFocus on %s of type %s due to button press"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
|
|
|
|
// Record the fact that this window is
|
|
// getting the focus, because we'll need to
|
|
// check if its parent is getting a bogus
|
|
// focus and duly ignore it.
|
|
// TODO: may need to have this code in SetFocus, too.
|
|
extern wxWindow* g_GettingFocus;
|
|
g_GettingFocus = win;
|
|
win->SetFocus();
|
|
}
|
|
}
|
|
|
|
#if !wxUSE_NANOX
|
|
if (event->type == LeaveNotify || event->type == EnterNotify)
|
|
{
|
|
// Throw out NotifyGrab and NotifyUngrab
|
|
if (event->xcrossing.mode != NotifyNormal)
|
|
return false;
|
|
}
|
|
#endif
|
|
wxMouseEvent wxevent;
|
|
wxTranslateMouseEvent(wxevent, win, window, event);
|
|
return win->HandleWindowEvent( wxevent );
|
|
}
|
|
case FocusIn:
|
|
#if !wxUSE_NANOX
|
|
if ((event->xfocus.detail != NotifyPointer) &&
|
|
(event->xfocus.mode == NotifyNormal))
|
|
#endif
|
|
{
|
|
wxLogTrace( wxT("focus"), wxT("FocusIn from %s of type %s"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
|
|
|
|
extern wxWindow* g_GettingFocus;
|
|
if (g_GettingFocus && g_GettingFocus->GetParent() == win)
|
|
{
|
|
// Ignore this, this can be a spurious FocusIn
|
|
// caused by a child having its focus set.
|
|
g_GettingFocus = NULL;
|
|
wxLogTrace( wxT("focus"), wxT("FocusIn from %s of type %s being deliberately ignored"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
wxFocusEvent focusEvent(wxEVT_SET_FOCUS, win->GetId());
|
|
focusEvent.SetEventObject(win);
|
|
focusEvent.SetWindow( g_prevFocus );
|
|
g_prevFocus = NULL;
|
|
|
|
return win->HandleWindowEvent(focusEvent);
|
|
}
|
|
}
|
|
return false;
|
|
|
|
case FocusOut:
|
|
#if !wxUSE_NANOX
|
|
if ((event->xfocus.detail != NotifyPointer) &&
|
|
(event->xfocus.mode == NotifyNormal))
|
|
#endif
|
|
{
|
|
wxLogTrace( wxT("focus"), wxT("FocusOut from %s of type %s"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
|
|
|
|
wxFocusEvent focusEvent(wxEVT_KILL_FOCUS, win->GetId());
|
|
focusEvent.SetEventObject(win);
|
|
focusEvent.SetWindow( g_nextFocus );
|
|
g_nextFocus = NULL;
|
|
return win->HandleWindowEvent(focusEvent);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// This should be redefined in a derived class for
|
|
// handling property change events for XAtom IPC.
|
|
bool wxApp::HandlePropertyChange(WXEvent *WXUNUSED(event))
|
|
{
|
|
// by default do nothing special
|
|
// TODO: what to do for X11
|
|
// XtDispatchEvent((XEvent*) event);
|
|
return false;
|
|
}
|
|
|
|
void wxApp::WakeUpIdle()
|
|
{
|
|
// TODO: use wxMotif implementation?
|
|
|
|
// Wake up the idle handler processor, even if it is in another thread...
|
|
}
|
|
|
|
|
|
// Create display, and other initialization
|
|
bool wxApp::OnInitGui()
|
|
{
|
|
#if wxUSE_LOG
|
|
// Eventually this line will be removed, but for
|
|
// now we don't want to try popping up a dialog
|
|
// for error messages.
|
|
delete wxLog::SetActiveTarget(new wxLogStderr);
|
|
#endif
|
|
|
|
if (!wxAppBase::OnInitGui())
|
|
return false;
|
|
|
|
Display *dpy = wxGlobalDisplay();
|
|
GetMainColormap(dpy);
|
|
|
|
m_maxRequestSize = XMaxRequestSize(dpy);
|
|
|
|
#if !wxUSE_NANOX
|
|
m_visualInfo = new wxXVisualInfo;
|
|
wxFillXVisualInfo(m_visualInfo, dpy);
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
#if wxUSE_UNICODE
|
|
|
|
#include <pango/pango.h>
|
|
#include <pango/pangoxft.h>
|
|
|
|
PangoContext* wxApp::GetPangoContext()
|
|
{
|
|
static PangoContext *s_pangoContext = NULL;
|
|
if ( !s_pangoContext )
|
|
{
|
|
Display *dpy = wxGlobalDisplay();
|
|
int xscreen = DefaultScreen(dpy);
|
|
|
|
s_pangoContext = pango_xft_get_context(dpy, xscreen);
|
|
|
|
if (!PANGO_IS_CONTEXT(s_pangoContext))
|
|
{
|
|
wxLogError( wxT("No pango context.") );
|
|
}
|
|
}
|
|
|
|
return s_pangoContext;
|
|
}
|
|
|
|
PangoContext* wxGetPangoContext()
|
|
{
|
|
PangoContext* context = wxTheApp->GetPangoContext();
|
|
g_object_ref(context);
|
|
return context;
|
|
}
|
|
#endif // wxUSE_UNICODE
|
|
|
|
WXColormap wxApp::GetMainColormap(WXDisplay* display)
|
|
{
|
|
if (!display) /* Must be called first with non-NULL display */
|
|
return m_mainColormap;
|
|
|
|
int defaultScreen = DefaultScreen((Display*) display);
|
|
Screen* screen = XScreenOfDisplay((Display*) display, defaultScreen);
|
|
|
|
Colormap c = DefaultColormapOfScreen(screen);
|
|
|
|
if (!m_mainColormap)
|
|
m_mainColormap = (WXColormap) c;
|
|
|
|
return (WXColormap) c;
|
|
}
|
|
|
|
Window wxGetWindowParent(Window window)
|
|
{
|
|
wxASSERT_MSG( window, wxT("invalid window") );
|
|
|
|
return (Window) 0;
|
|
|
|
#ifndef __VMS
|
|
// VMS chokes on unreacheable code
|
|
Window parent, root = 0;
|
|
#if wxUSE_NANOX
|
|
int noChildren = 0;
|
|
#else
|
|
unsigned int noChildren = 0;
|
|
#endif
|
|
Window* children = NULL;
|
|
|
|
// #define XQueryTree(d,w,r,p,c,nc) GrQueryTree(w,p,c,nc)
|
|
int res = 1;
|
|
#if !wxUSE_NANOX
|
|
res =
|
|
#endif
|
|
XQueryTree((Display*) wxGetDisplay(), window, & root, & parent,
|
|
& children, & noChildren);
|
|
if (children)
|
|
XFree(children);
|
|
if (res)
|
|
return parent;
|
|
else
|
|
return (Window) 0;
|
|
#endif
|
|
}
|
|
|
|
void wxApp::Exit()
|
|
{
|
|
wxApp::CleanUp();
|
|
|
|
wxAppConsole::Exit();
|
|
}
|
|
|