vcl: add new metafile viewer demo - mainly for fdo#80503

This is going to be very helpful troubleshooting problems with metafiles
that just won't display.

Change-Id: I661dd40e04434a9c64a0f59d9310d36444601989

Repository.mk

@@ -72,6 +72,7 @@ $(eval $(call gb_Helper_register_executables,NONE, \
 	    outdevgrind) \
 	vcldemo \
 	tiledrendering \
+    mtfdemo \
 	$(if $(and $(ENABLE_GTK), $(filter LINUX,$(OS))), gtktiledviewer) \
 ))
 

vcl/Executable_mtfdemo.mk

+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Executable_Executable,mtfdemo))
+
+$(eval $(call gb_Executable_use_api,mtfdemo,\
+    offapi \
+    udkapi \
+))
+
+$(eval $(call gb_Executable_use_external,mtfdemo,boost_headers))
+
+$(eval $(call gb_Executable_set_include,mtfdemo,\
+    $$(INCLUDE) \
+    -I$(SRCDIR)/vcl/inc \
+    -I$(SRCDIR)/solenv/inc \
+))
+
+$(eval $(call gb_Executable_use_libraries,mtfdemo,\
+	basegfx \
+    tl \
+    sal \
+    vcl \
+    cppu \
+    cppuhelper \
+    comphelper \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,mtfdemo,\
+    vcl/workben/mtfdemo \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,mtfdemo,\
+    vclmain \
+))
+
+ifeq ($(OS),LINUX)
+$(eval $(call gb_Executable_add_libs,mtfdemo,\
+	-lm \
+	-ldl \
+	-lpthread \
+    -lGL \
+    -lGLU \
+    -lX11 \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,mtfdemo,\
+	glxtest \
+))
+endif
+
+# vim: set noet sw=4 ts=4:

vcl/Module_vcl.mk

@@ -29,7 +29,8 @@ $(eval $(call gb_Module_add_targets,vcl,\
 		$(if $(filter LINUX MACOSX WNT,$(OS)), \
 			Executable_icontest \
 			Executable_outdevgrind \
-			Executable_vcldemo )) \
+			Executable_vcldemo \
+            Executable_mtfdemo )) \
     $(if $(filter-out ANDROID IOS WNT,$(OS)), \
         Executable_svdemo \
         Executable_svptest \

vcl/source/gdi/gdimtf.cxx

@@ -2807,6 +2807,10 @@ SvStream& ReadGDIMetaFile( SvStream& rIStm, GDIMetaFile& rGDIMetaFile )
 
         rIStm.SetNumberFormatInt( nOldFormat );
     }
+    else
+    {
+        SAL_WARN("vcl.gdi", "Stream error: " << rIStm.GetError());
+    }
 
     return rIStm;
 }

vcl/workben/mtfdemo.cxx

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <comphelper/processfactory.hxx>
+#include <comphelper/random.hxx>
+#include <cppuhelper/bootstrap.hxx>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/registry/XSimpleRegistry.hpp>
+#include <com/sun/star/ucb/UniversalContentBroker.hpp>
+
+#include <vcl/vclmain.hxx>
+#include <vcl/layout.hxx>
+#include <vcl/gdimtf.hxx>
+#include <vcl/wmf.hxx>
+
+#include <tools/urlobj.hxx>
+#include <tools/stream.hxx>
+#include <tools/vcompat.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/wrkwin.hxx>
+#include <vcl/virdev.hxx>
+
+#include <tools/stream.hxx>
+
+#include <cstdlib>
+
+using namespace com::sun::star;
+
+using namespace css;
+
+class DemoMtfWin : public WorkWindow
+{
+    GDIMetaFile *mpMtf;
+
+public:
+    DemoMtfWin(OUString& aFileName) :
+        WorkWindow(NULL, WB_APP | WB_STDWORK)
+    {
+
+
+        SvFileStream aFileStream(aFileName, STREAM_READ);
+
+        if (aFileStream.IsOpen())
+        {
+            ReadWindowMetafile(aFileStream, *mpMtf);
+        }
+        else
+        {
+            Application::Abort("Can't read metafile");
+        }
+    }
+
+    virtual void Paint( const Rectangle& rRect )  SAL_OVERRIDE;
+};
+
+void DemoMtfWin::Paint( const Rectangle& rRect )
+{
+    mpMtf->Play(this, mpMtf->GetActionSize());
+
+    WorkWindow::Paint( rRect );
+}
+
+class DemoMtfApp : public Application
+{
+    DemoMtfWin *mpWin;
+    OUString *mpFileName;
+
+    void showHelp()
+    {
+        fprintf(stderr, "Usage: mtfdemo --help | FILE\n");
+        fprintf(stderr, "A VCL test app that displays Windows metafiles\n");
+        std::exit(0);
+    }
+
+public:
+    virtual int Main() SAL_OVERRIDE
+    {
+        mpWin = new DemoMtfWin(*mpFileName);
+        mpWin->SetText(OUString("Display metafile"));
+
+        mpWin->Show();
+
+        Application::Execute();
+
+        return 0;
+    }
+
+protected:
+    uno::Reference<lang::XMultiServiceFactory> xMSF;
+    void Init() SAL_OVERRIDE
+    {
+        try
+        {
+            sal_uInt32 nCmdParams = GetCommandLineParamCount();
+
+            if (nCmdParams == 0)
+                showHelp();
+            else
+            {
+                OUString aArg = GetCommandLineParam(0);
+
+                if (aArg == "--help" || aArg == "-h")
+                    showHelp();
+                else
+                    mpFileName = new OUString(aArg);
+            }
+
+            uno::Reference<uno::XComponentContext> xComponentContext
+                = ::cppu::defaultBootstrap_InitialComponentContext();
+            xMSF = uno::Reference<lang::XMultiServiceFactory>
+                (xComponentContext->getServiceManager(), uno::UNO_QUERY);
+            if(!xMSF.is())
+                Application::Abort("Bootstrap failure - no service manager");
+
+            ::comphelper::setProcessServiceFactory(xMSF);
+        }
+        catch (const uno::Exception &e)
+        {
+            Application::Abort("Bootstrap exception " + e.Message);
+        }
+    }
+
+    void DeInit() SAL_OVERRIDE
+    {
+        uno::Reference< lang::XComponent >(
+            comphelper::getProcessComponentContext(),
+        uno::UNO_QUERY_THROW)-> dispose();
+        ::comphelper::setProcessServiceFactory(NULL);
+    }
+
+};
+
+
+void vclmain::createApplication()
+{
+    static DemoMtfApp aApp;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */