Motif files added.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@750 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
513
src/motif/app.cpp
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513
src/motif/app.cpp
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/////////////////////////////////////////////////////////////////////////////
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// Name: 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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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "app.h"
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#endif
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#include "wx/frame.h"
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#include "wx/app.h"
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#include "wx/utils.h"
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#include "wx/gdicmn.h"
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#include "wx/pen.h"
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#include "wx/brush.h"
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#include "wx/cursor.h"
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#include "wx/icon.h"
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#include "wx/palette.h"
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#include "wx/dc.h"
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#include "wx/dialog.h"
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#include "wx/msgdlg.h"
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#include "wx/log.h"
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#include "wx/module.h"
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#include "wx/memory.h"
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#if USE_WX_RESOURCES
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#include "wx/resource.h"
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#endif
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#if USE_POSTSCRIPT
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#include "wx/postscrp.h"
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#endif
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#include <Xm/Xm.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xresource.h>
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#include <X11/Xatom.h>
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#include "wx/motif/private.h"
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#include <string.h>
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extern char *wxBuffer;
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extern wxList wxPendingDelete;
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wxApp *wxTheApp = NULL;
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wxHashTable *wxWidgetHashTable = NULL;
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#if !USE_SHARED_LIBRARY
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IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
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BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
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EVT_IDLE(wxApp::OnIdle)
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END_EVENT_TABLE()
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#endif
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long wxApp::sm_lastMessageTime = 0;
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bool wxApp::Initialize()
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{
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#ifdef __WXMSW__
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wxBuffer = new char[1500];
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#else
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wxBuffer = new char[BUFSIZ + 512];
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#endif
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#if (WXDEBUG && USE_MEMORY_TRACING) || USE_DEBUG_CONTEXT
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streambuf* sBuf = new wxDebugStreamBuf;
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ostream* oStr = new ostream(sBuf) ;
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wxDebugContext::SetStream(oStr, sBuf);
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#endif
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wxClassInfo::InitializeClasses();
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wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
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wxTheColourDatabase->Initialize();
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wxInitializeStockObjects();
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#if USE_WX_RESOURCES
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wxInitializeResourceSystem();
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#endif
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// For PostScript printing
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#if USE_POSTSCRIPT
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wxInitializePrintSetupData();
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wxThePrintPaperDatabase = new wxPrintPaperDatabase;
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wxThePrintPaperDatabase->CreateDatabase();
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#endif
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wxBitmap::InitStandardHandlers();
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wxWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
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wxModule::RegisterModules();
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wxASSERT( wxModule::InitializeModules() == TRUE );
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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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delete wxWidgetHashTable;
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wxWidgetHashTable = NULL;
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wxModule::CleanUpModules();
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#if USE_WX_RESOURCES
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wxCleanUpResourceSystem();
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#endif
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wxDeleteStockObjects() ;
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// Destroy all GDI lists, etc.
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delete wxTheBrushList;
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wxTheBrushList = NULL;
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delete wxThePenList;
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wxThePenList = NULL;
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delete wxTheFontList;
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wxTheFontList = NULL;
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delete wxTheBitmapList;
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wxTheBitmapList = NULL;
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delete wxTheColourDatabase;
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wxTheColourDatabase = NULL;
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#if USE_POSTSCRIPT
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wxInitializePrintSetupData(FALSE);
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delete wxThePrintPaperDatabase;
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wxThePrintPaperDatabase = NULL;
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#endif
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wxBitmap::CleanUpHandlers();
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delete[] wxBuffer;
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wxBuffer = NULL;
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wxClassInfo::CleanUpClasses();
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// do it as the very last thing because everything else can log messages
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wxLog::DontCreateOnDemand();
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// do it as the very last thing because everything else can log messages
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delete wxLog::SetActiveTarget(NULL);
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}
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int wxEntry( int argc, char *argv[] )
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{
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if (!wxApp::Initialize())
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return FALSE;
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if (!wxTheApp)
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{
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if (!wxApp::GetInitializerFunction())
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{
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printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" );
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return 0;
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};
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wxTheApp = (wxApp*) (* wxApp::GetInitializerFunction()) ();
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};
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if (!wxTheApp)
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{
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printf( "wxWindows error: wxTheApp == NULL\n" );
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return 0;
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};
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wxTheApp->SetClassName(wxFileNameFromPath(argv[0]));
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wxTheApp->SetAppName(wxFileNameFromPath(argv[0]));
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wxTheApp->argc = argc;
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wxTheApp->argv = argv;
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// GUI-specific initialization, such as creating an app context.
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wxTheApp->OnInitGui();
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// Here frames insert themselves automatically
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// into wxTopLevelWindows by getting created
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// in OnInit().
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if (!wxTheApp->OnInit()) return 0;
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int retValue = 0;
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if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun();
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if (wxTheApp->GetTopWindow())
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{
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delete wxTheApp->GetTopWindow();
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wxTheApp->SetTopWindow(NULL);
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}
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wxTheApp->DeletePendingObjects();
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wxTheApp->OnExit();
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wxApp::CleanUp();
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delete wxTheApp;
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wxTheApp = NULL;
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#if (WXDEBUG && USE_MEMORY_TRACING) || USE_DEBUG_CONTEXT
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// At this point we want to check if there are any memory
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// blocks that aren't part of the wxDebugContext itself,
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// as a special case. Then when dumping we need to ignore
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// wxDebugContext, too.
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if (wxDebugContext::CountObjectsLeft() > 0)
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{
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wxTrace("There were memory leaks.\n");
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wxDebugContext::Dump();
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wxDebugContext::PrintStatistics();
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}
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wxDebugContext::SetStream(NULL, NULL);
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#endif
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return retValue;
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};
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// Static member initialization
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wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
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wxApp::wxApp()
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{
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m_topWindow = NULL;
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wxTheApp = this;
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m_className = "";
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m_wantDebugOutput = TRUE ;
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m_appName = "";
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argc = 0;
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argv = NULL;
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m_printMode = wxPRINT_POSTSCRIPT;
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m_exitOnFrameDelete = TRUE;
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m_auto3D = TRUE;
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m_mainColormap = (WXColormap) NULL;
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m_appContext = (WXAppContext) NULL;
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m_topLevelWidget = (WXWidget) NULL;
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m_maxRequestSize = 0;
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}
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bool wxApp::Initialized()
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{
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if (GetTopWindow())
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return TRUE;
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else
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return FALSE;
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}
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int wxApp::MainLoop()
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{
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m_keepGoing = TRUE;
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/*
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* Sit around forever waiting to process X-events. Property Change
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* event are handled special, because they have to refer to
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* the root window rather than to a widget. therefore we can't
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* use an Xt-eventhandler.
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*/
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XSelectInput(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()),
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XDefaultRootWindow(XtDisplay((Widget) wxTheApp->GetTopLevelWidget())),
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PropertyChangeMask);
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XEvent event;
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// Use this flag to allow breaking the loop via wxApp::ExitMainLoop()
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while (m_keepGoing)
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{
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XtAppNextEvent( (XtAppContext) wxTheApp->GetAppContext(), &event);
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if(event.type == PropertyNotify)
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{
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HandlePropertyChange((WXEvent*) &event);
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} else
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{
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// Terry Gitnick <terryg@scientech.com> - 1/21/98
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/* if resize event, don't resize until the last resize event for this
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window is recieved. Prevents flicker as windows are resized. */
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if (event.type == ResizeRequest)
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{
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Display *disp = XtDisplay((Widget) wxTheApp->GetTopLevelWidget());
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Window win = event.xany.window;
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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, win, ResizeRequest, &report));
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}
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XtDispatchEvent(&event);
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DeletePendingObjects();
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}
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}
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return 0;
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}
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// Returns TRUE if more time is needed.
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bool wxApp::ProcessIdle()
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{
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wxIdleEvent event;
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event.SetEventObject(this);
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ProcessEvent(event);
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return event.MoreRequested();
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}
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void wxApp::ExitMainLoop()
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{
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m_keepGoing = FALSE;
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}
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// Is a message/event pending?
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bool wxApp::Pending()
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{
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XFlush(XtDisplay( (Widget) wxTheApp->GetTopLevelWidget() ));
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return (XtAppPending( (XtAppContext) wxTheApp->GetAppContext() ) != 0) ;
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}
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// Dispatch a message.
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void wxApp::Dispatch()
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{
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XtAppProcessEvent( (XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
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}
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// This should be redefined in a derived class for
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// handling property change events for XAtom IPC.
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void wxApp::HandlePropertyChange(WXEvent *event)
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{
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// by default do nothing special
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XtDispatchEvent((XEvent*) event); /* let Motif do the work */
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}
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void wxApp::OnIdle(wxIdleEvent& event)
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{
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static bool inOnIdle = FALSE;
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// Avoid recursion (via ProcessEvent default case)
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if (inOnIdle)
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return;
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inOnIdle = TRUE;
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// 'Garbage' collection of windows deleted with Close().
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DeletePendingObjects();
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// flush the logged messages if any
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wxLog *pLog = wxLog::GetActiveTarget();
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if ( pLog != NULL && pLog->HasPendingMessages() )
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pLog->Flush();
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// Send OnIdle events to all windows
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bool needMore = SendIdleEvents();
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if (needMore)
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event.RequestMore(TRUE);
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inOnIdle = FALSE;
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}
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// Send idle event to all top-level windows
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bool wxApp::SendIdleEvents()
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{
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bool needMore = FALSE;
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wxNode* node = wxTopLevelWindows.First();
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while (node)
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{
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wxWindow* win = (wxWindow*) node->Data();
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if (SendIdleEvents(win))
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needMore = TRUE;
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node = node->Next();
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}
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return needMore;
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}
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// Send idle event to window and all subwindows
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bool wxApp::SendIdleEvents(wxWindow* win)
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{
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bool needMore = FALSE;
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wxIdleEvent event;
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event.SetEventObject(win);
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win->ProcessEvent(event);
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if (event.MoreRequested())
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needMore = TRUE;
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wxNode* node = win->GetChildren()->First();
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while (node)
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{
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wxWindow* win = (wxWindow*) node->Data();
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if (SendIdleEvents(win))
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needMore = TRUE;
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node = node->Next();
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}
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return needMore ;
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}
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void wxApp::DeletePendingObjects()
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{
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wxNode *node = wxPendingDelete.First();
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while (node)
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{
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wxObject *obj = (wxObject *)node->Data();
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delete obj;
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if (wxPendingDelete.Member(obj))
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delete node;
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// Deleting one object may have deleted other pending
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// objects, so start from beginning of list again.
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node = wxPendingDelete.First();
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}
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}
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wxLog* wxApp::CreateLogTarget()
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{
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return new wxLogGui;
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}
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wxWindow* wxApp::GetTopWindow() const
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{
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if (m_topWindow)
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return m_topWindow;
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else if (wxTopLevelWindows.Number() > 0)
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return (wxWindow*) wxTopLevelWindows.First()->Data();
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else
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return NULL;
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}
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// Create an application context
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bool wxApp::OnInitGui()
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{
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XtToolkitInitialize() ;
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wxTheApp->m_appContext = (WXAppContext) XtCreateApplicationContext() ;
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Display *dpy = XtOpenDisplay((XtAppContext) wxTheApp->m_appContext,(String)NULL,NULL,
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(const char*) wxTheApp->GetClassName(), NULL,
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# if XtSpecificationRelease < 5
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0,(Cardinal*) &argc,argv) ;
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# else
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0,&argc,argv) ;
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# endif
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if (!dpy) {
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cerr << "wxWindows could not open display for " << wxTheApp->GetClassName() << ": exiting.\n";
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exit(-1);
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}
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wxTheApp->m_topLevelWidget = (WXWidget) XtAppCreateShell((String)NULL, (const char*) wxTheApp->GetClassName(),
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applicationShellWidgetClass,dpy,
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NULL,0) ;
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// Add general resize proc
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XtActionsRec rec;
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rec.string = "resize";
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rec.proc = (XtActionProc)wxWidgetResizeProc;
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XtAppAddActions((XtAppContext) wxTheApp->m_appContext, &rec, 1);
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GetMainColormap(dpy);
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m_maxRequestSize = XMaxRequestSize((Display*) dpy);
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return TRUE;
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}
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WXColormap wxApp::GetMainColormap(WXDisplay* display)
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{
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if (!display) /* Must be called first with non-NULL display */
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return m_mainColormap;
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Colormap c =
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DefaultColormapOfScreen(XScreenOfDisplay((Display*) display,
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DefaultScreen((Display*) display)));
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if (!m_mainColormap)
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m_mainColormap = (WXColormap) c;
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return (WXColormap) c;
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}
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void wxExit()
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{
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int retValue = 0;
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if (wxTheApp)
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retValue = wxTheApp->OnExit();
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wxApp::CleanUp();
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/*
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* Exit in some platform-specific way. Not recommended that the app calls this:
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* only for emergencies.
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*/
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exit(retValue);
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}
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// Yield to other processes
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bool wxYield()
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{
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while (wxTheApp && wxTheApp->Pending())
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wxTheApp->Dispatch();
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return TRUE;
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}
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