Add a new test checking wxGraphicsContext implementation correctness.

This test verifies that the output of wxGraphicsContext on the current system
matches the pregenerated reference output.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76164 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/drawing/plugindriver.cpp

@@ -0,0 +1,104 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/drawing/plugindriver.cpp
+// Purpose:     Plugin management for the drawing tests
+// Author:      Armel Asselin
+// Created:     2014-02-28
+// Copyright:   (c) 2014 Ellié Computing <opensource@elliecomputing.com>
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "testprec.h"
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/font.h"
+    #include "wx/window.h"
+#endif // WX_PRECOMP
+
+#define _WX_CURSOR_H_BASE_
+
+
+#include "drawing.h"
+
+#if wxUSE_TEST_GC_DRAWING
+#include <wx/dynlib.h>
+
+void GraphicsContextDrawingTestCase::RunPluginsDrawingCase (
+    const DrawingTestCase & testCase)
+{
+    if (!m_drawingPluginsLoaded)
+    {
+        m_drawingPluginsLoaded = true;
+
+        wxString pluginsListStr;
+        if (!wxGetEnv ("WX_TEST_SUITE_GC_DRAWING_PLUGINS", &pluginsListStr))
+            return; // no plugins
+
+        wxArrayString pluginsNameArray = wxSplit (pluginsListStr, ',', '\0');
+        m_drawingPlugins.resize (pluginsNameArray.size());
+
+        for (size_t idx=0; idx<pluginsNameArray.size(); ++idx)
+        {
+            PluginInfo &pluginBeingLoaded = m_drawingPlugins[idx];
+            pluginBeingLoaded.library = new wxDynamicLibrary;
+            if (!pluginBeingLoaded.library->Load (pluginsNameArray[idx]))
+            {
+                wxLogFatalError("could not load drawing plugin %s",
+                    pluginsNameArray[idx]);
+                return;
+            }
+
+            wxDYNLIB_FUNCTION(CreateDrawingTestLifeCycleFunction,
+                CreateDrawingTestLifeCycle, *pluginBeingLoaded.library);
+            wxDYNLIB_FUNCTION(DestroyDrawingTestLifeCycleFunction,
+                DestroyDrawingTestLifeCycle, *pluginBeingLoaded.library);
+
+            if (!pfnCreateDrawingTestLifeCycle ||
+                !pfnDestroyDrawingTestLifeCycle)
+            {
+                wxLogFatalError("could not find function"
+                    " CreateDrawingTestLifeCycle or "
+                    "DestroyDrawingTestLifeCycle in %s", pluginsNameArray[idx]);
+                return;
+            }
+
+            pluginBeingLoaded.destroy = pfnDestroyDrawingTestLifeCycle;
+            pluginBeingLoaded.gcFactory = (*pfnCreateDrawingTestLifeCycle)();
+            if (!pluginBeingLoaded.gcFactory)
+            {
+                wxLogFatalError("failed to create life-cycle object in %s",
+                    pluginsNameArray[idx]);
+                return;
+            }
+        }
+    }
+
+    // now execute the test case for each plugin
+    for (size_t idxp=0; idxp<m_drawingPlugins.size(); ++idxp)
+    {
+        RunIndividualDrawingCase (*m_drawingPlugins[idxp].gcFactory, testCase);
+    }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// GraphicsContextDrawingTestCase::PluginInfo /////////////////////////////////
+
+GraphicsContextDrawingTestCase::PluginInfo::PluginInfo()
+    : library(NULL), gcFactory(NULL), destroy(NULL) {
+}
+
+GraphicsContextDrawingTestCase::PluginInfo::~PluginInfo()
+{
+    if (destroy && gcFactory)
+        (*destroy)(gcFactory);
+
+    delete library;
+}
+
+#endif // wxUSE_TEST_GC_DRAWING