First check-in of NxWidgets

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4505 42af7a65-404d-4744-a932-0658087f49c3
2026-10-12 00:10:14 +00:00 · 2012-03-22 21:22:59 +00:00 · 2012-03-22 21:22:59 +00:00 · df3eaebf59
commit df3eaebf59
217 changed files with 66325 additions and 0 deletions
--- a/UnitTests/CButton/Makefile
+++ b/UnitTests/CButton/Makefile
@ -0,0 +1,172 @@
+#################################################################################
+# NxWidgets/Unitests/CButton/Makefile
+#
+#   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
+#    me be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+#################################################################################
+
+TESTDIR := ${shell pwd | sed -e 's/ /\\ /g'}
+
+-include $(TOPDIR)/.config
+-include $(TOPDIR)/Make.defs
+include $(APPDIR)/Make.defs
+
+# Add the path to the NXWidget include directory to the CFLAGS
+
+NXWIDGETS_DIR="$(TESTDIR)/../../NXWidgets/libnxwidgets"
+NXWIDGETS_INC="$(NXWIDGETS_DIR)/include"
+NXWIDGETS_LIB="$(NXWIDGETS_DIR)/libnxwidgets$(LIBEXT)"
+
+INCDIR=$(TOPDIR)/tools/incdir.sh
+ifeq ($(WINTOOL),y)
+  CFLAGS += ${shell $(INCDIR) -w "$(CC)" "$(NXWIDGETS_INC)"}
+  CXXFLAGS += ${shell $(INCDIR) -w "$(CXX)" "$(NXWIDGETS_INC)"}
+else
+  CFLAGS += ${shell $(INCDIR) "$(CC)" "$(NXWIDGETS_INC)"}
+  CXXFLAGS += ${shell $(INCDIR) "$(CXX)" "$(NXWIDGETS_INC)"}
+endif
+
+# Get the path to the archiver tool
+
+TESTTOOL_DIR="$(TESTDIR)/../tools"
+ARCHIVER=$(TESTTOOL_DIR)/addobjs.sh
+
+# Hello, World! C++ Example
+
+ASRCS		=
+CSRCS		=
+CXXSRCS		= main.cxx cbuttontest.cxx
+
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+CXXOBJS		= $(CXXSRCS:.cxx=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS) $(CXXSRCS)
+OBJS		= $(AOBJS) $(COBJS) $(CXXOBJS)
+
+POSIX_BIN	= "$(APPDIR)/libapps$(LIBEXT)"
+ifeq ($(WINTOOL),y)
+  BIN		= "${shell cygpath -w  $(POSIX_BIN)}"
+else
+  BIN		= $(POSIX_BIN)
+endif
+
+ROOTDEPPATH	= --dep-path .
+
+# helloxx built-in application info
+
+APPNAME		= cbutton
+PRIORITY	= SCHED_PRIORITY_DEFAULT
+STACKSIZE	= 2048
+
+# Common build
+
+VPATH		= 
+
+all: .built
+.PHONY:	clean depend context disclean chkcxx chklib
+
+# Object file creation targets
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+$(CXXOBJS): %$(OBJEXT): %.cxx
+	$(call COMPILEXX, $<, $@)
+
+# Verify that the NuttX configuration is setup to support C++
+
+chkcxx:
+ifneq ($(CONFIG_HAVE_CXX),y)
+	@echo ""
+	@echo "In order to use this example, you toolchain must support must"
+	@echo ""
+	@echo "  (1) Explicitly select CONFIG_HAVE_CXX to build in C++ support"
+	@echo "  (2) Define CXX, CXXFLAGS, and COMPILEXX in the Make.defs file"
+	@echo "      of the configuration that you are using."
+	@echo ""
+	@exit 1
+endif
+
+# Verify that the NXWidget library has been built
+
+chklib:
+	@( \
+		if [ ! -e "$(NXWIDGETS_LIB)" ]; then \
+			echo "$(NXWIDGETS_LIB) does not exist."; \
+			echo "Please go to $(NXWIDGETS_DIR)"; \
+			echo "and rebuild the library"; \
+			exit 1; \
+		fi; \
+	  )
+
+# Library creation targets
+
+$(NXWIDGETS_LIB): # Just to keep make happy.  chklib does the work.
+
+.built: chkcxx chklib $(OBJS) $(NXWIDGETS_LIB)
+	@( for obj in $(OBJS) ; do \
+		$(call ARCHIVE, $(BIN), $${obj}); \
+	   done ; )
+ifeq ($(WINTOOL),y)
+	@$(ARCHIVER) -w -p "$(CROSSDEV)" $(BIN) $(NXWIDGETS_DIR)
+else
+	@$(ARCHIVER) -p "$(CROSSDEV)" $(BIN) $(NXWIDGETS_DIR)
+endif
+	@touch .built
+
+# Standard housekeeping targets
+
+.context:
+ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
+	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
+endif
+	@touch $@
+
+context: .context
+
+.depend: Makefile $(SRCS)
+	@$(MKDEP) $(ROOTDEPPATH) $(CXX) -- $(CXXFLAGS) -- $(SRCS) >Make.dep
+	@touch $@
+
+depend: .depend
+
+clean:
+	@rm -f *.o *~ .*.swp .built
+	$(call CLEAN)
+
+distclean: clean
+	@rm -f Make.dep .depend
+
+-include Make.dep
--- a/UnitTests/CButton/cbuttontest.cxx
+++ b/UnitTests/CButton/cbuttontest.cxx
@ -0,0 +1,325 @@
+/////////////////////////////////////////////////////////////////////////////
+// NxWidgets/UnitTests/CButton/cbuttontest.cxx
+//
+//   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
+//    me be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Included Files
+/////////////////////////////////////////////////////////////////////////////
+
+#include <nuttx/config.h>
+
+#include <nuttx/init.h>
+#include <cstdio>
+#include <cerrno>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxfonts.h>
+
+#include "nxconfig.hxx"
+#include "cbuttontest.hxx"
+#include "cbgwindow.hxx"
+
+/////////////////////////////////////////////////////////////////////////////
+// Definitions
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Classes
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Data
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Data
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Function Prototypes
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// CButtonTest Method Implementations
+/////////////////////////////////////////////////////////////////////////////
+
+// CButtonTest Constructor
+
+CButtonTest::CButtonTest()
+{
+  m_bgWindow = (CBgWindow *)NULL;
+  m_nxFont   = (CNxFont *)NULL;
+  m_text     = (CNxString *)NULL;
+}
+
+// CButtonTest Descriptor
+
+CButtonTest::~CButtonTest()
+{
+  disconnect();
+}
+
+// Connect to the NX server
+
+bool CButtonTest::connect(void)
+{
+  // Connect to the server
+
+  bool nxConnected = CNxServer::connect();
+  if (nxConnected)
+    {
+      // Create the default font instance
+
+      m_nxFont = new CNxFont(NXFONT_DEFAULT,
+                            CONFIG_NXWIDGETS_DEFAULT_FONTCOLOR,
+                            CONFIG_NXWIDGETS_TRANSPARENT_COLOR);
+      if (!m_nxFont)
+        {
+          printf("CButtonTest::connect: Failed to create the default font\n");
+        }
+
+      // Set the background color
+
+      if (!setBackgroundColor(CONFIG_CBUTTONTEST_BGCOLOR))
+        {
+          printf("CButtonTest::connect: setBackgroundColor failed\n");
+        }
+    }
+
+  return nxConnected;
+}
+
+// Disconnect from the NX server
+
+void CButtonTest::disconnect(void)
+{
+  // Close the window
+
+  if (m_bgWindow)
+    {
+      delete m_bgWindow;
+    }
+
+  // Free the display string
+
+  if (m_text)
+    {
+      delete m_text;
+      m_text = (CNxString *)NULL;
+    }
+
+  // Free the default font
+
+  if (m_nxFont)
+    {
+      delete m_nxFont;
+      m_nxFont = (CNxFont *)NULL;
+    }
+
+  // And disconnect from the server
+
+  CNxServer::disconnect();
+}
+
+// Create the background window instance.  This function illustrates
+// the basic steps to instantiate any window:
+//
+// 1) Create a dumb CWigetControl instance
+// 2) Pass the dumb CWidgetControl instance to the window constructor
+//    that inherits from INxWindow.  This will "smarten" the CWidgetControl
+//    instance with some window knowlede
+// 3) Call the open() method on the window to display the window.
+// 4) After that, the fully smartened CWidgetControl instance can
+//    be used to generate additional widgets by passing it to the
+//    widget constructor
+
+bool CButtonTest::createWindow(void)
+{
+  // Initialize the widget control using the default style
+
+  m_widgetControl = new CWidgetControl((CWidgetStyle *)NULL);
+
+  // Get an (uninitialized) instance of the background window as a class
+  // that derives from INxWindow.
+
+  m_bgWindow = getBgWindow(m_widgetControl);
+  if (!m_bgWindow)
+    {
+      printf("CButtonTest::createGraphics: Failed to create CBgWindow instance\n");
+      delete m_widgetControl;
+      return false;
+    }
+
+  // Open (and initialize) the window
+
+  bool success = m_bgWindow->open();
+  if (!success)
+    {
+      printf("CButtonTest::createGraphics: Failed to open background window\n");
+      delete m_bgWindow;
+      m_bgWindow = (CBgWindow*)0;
+      return false;
+    }
+
+  return true;
+}
+
+// Create a CButton instance
+
+CButton *CButtonTest::createButton(FAR const char *text)
+{
+  // Get the width of the display
+
+  struct nxgl_size_s windowSize;
+  if (!m_bgWindow->getSize(&windowSize))
+    {
+      printf("CButtonTest::createGraphics: Failed to get window size\n");
+      return (CButton *)NULL;
+    }
+
+  // Create a CNxString instance to contain the C string
+
+  m_text = new CNxString(text);
+
+  // Get the height and width of the text display area
+
+  nxgl_coord_t stringWidth  = m_nxFont->getStringWidth(*m_text);
+  nxgl_coord_t stringHeight = (nxgl_coord_t)m_nxFont->getHeight();
+
+  // The default CButton has borders enabled with thickness of the border
+  // width.  Add twice the thickness of the borderto the width and height. (We
+  // could let CButton do this for us by calling CButton::getPreferredDimensions())
+
+  stringWidth  += 2 * 1;
+  stringHeight += 2 * 1;
+
+  // Pick an X/Y position such that the button will be centered in the display
+
+  nxgl_coord_t buttonX;
+  if (stringWidth >= windowSize.w)
+    {
+      buttonX = 0;
+    }
+  else
+    {
+      buttonX = (windowSize.w - stringWidth) >> 1;
+    }
+
+  nxgl_coord_t buttonY;
+  if (stringHeight >= windowSize.h)
+    {
+      buttonY = 0;
+    }
+  else
+    {
+      buttonY = (windowSize.h - stringHeight) >> 1;
+    }
+
+  // Save the center position of the button for use by click and release
+
+  m_center.x = buttonX + (stringWidth >> 1);
+  m_center.y = buttonY + (stringHeight >> 1);
+
+  // Now we have enough information to create the button
+
+  return new CButton(m_widgetControl, buttonX, buttonY, stringWidth, stringHeight, *m_text);
+}
+
+// Draw the button
+
+void CButtonTest::showButton(CButton *button)
+{
+  button->enable();        // Un-necessary, the widget is enabled by default
+  button->enableDrawing();
+  button->redraw();
+}
+
+// Perform a simulated mouse click on the button.  This method injects
+// the mouse click through the NX heirarchy just as would real mouse
+// hardward.
+
+void CButtonTest::click(void)
+{
+  // nx_mousein is meant to be called by mouse handling software.
+  // Here we just inject a left-button click directly in the center of
+  // the button.
+
+  // First, get the server handle.  Graphics software will never care
+  // about the server handle.  Here we need it to get access to the
+  // low-level mouse interface
+
+  NXHANDLE handle = getServer();
+
+  // Then inject the mouse click
+
+  (void)nx_mousein(handle, m_center.x, m_center.y, NX_MOUSE_LEFTBUTTON);
+}
+
+// The counterpart to click.  This simulates a button release through
+// the same mechanism.
+
+void CButtonTest::release(void)
+{
+  // nx_mousein is meant to be called by mouse handling software.
+  // Here we just inject a left-button click directly in the center of
+  // the button.
+
+  // First, get the server handle.  Graphics software will never care
+  // about the server handle.  Here we need it to get access to the
+  // low-level mouse interface
+
+  NXHANDLE handle = getServer();
+
+  // Then inject the mouse click
+
+  (void)nx_mousein(handle, m_center.x, m_center.y, NX_MOUSE_NOBUTTONS);
+}
+
+// Widget events are normally handled in a modal loop (by calling goModal()).
+// However, for this case we know when there should be press and release
+// events so we don't have to poll.  We can just perform a one pass poll
+// then check if the event was processed corredly.
+
+bool CButtonTest::poll(CButton *button)
+{
+  // Poll for mouse events
+
+  m_widgetControl->pollEvents(button);
+
+  // And return the button clicked state
+
+  return button->isClicked();
+}
+
--- a/UnitTests/CButton/cbuttontest.hxx
+++ b/UnitTests/CButton/cbuttontest.hxx
@ -0,0 +1,167 @@
+/////////////////////////////////////////////////////////////////////////////
+// NxWidgets/UnitTests/CButton/cbuttontest.hxx
+//
+//   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
+//    me be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef __UNITTESTS_CBUTTON_CBUTTONTEST_HXX
+#define __UNITTESTS_CBUTTON_CBUTTONTEST_HXX
+
+/////////////////////////////////////////////////////////////////////////////
+// Included Files
+/////////////////////////////////////////////////////////////////////////////
+
+#include <nuttx/config.h>
+
+#include <nuttx/init.h>
+#include <cstdio>
+#include <semaphore.h>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+
+#include "nxconfig.hxx"
+#include "cwidgetcontrol.hxx"
+#include "ccallback.hxx"
+#include "cbgwindow.hxx"
+#include "cnxserver.hxx"
+#include "cnxfont.hxx"
+#include "cnxstring.hxx"
+#include "cbutton.hxx"
+
+/////////////////////////////////////////////////////////////////////////////
+// Definitions
+/////////////////////////////////////////////////////////////////////////////
+// Configuration ////////////////////////////////////////////////////////////
+
+#ifndef CONFIG_HAVE_CXX
+#  error "CONFIG_HAVE_CXX must be defined"
+#endif
+
+#ifndef CONFIG_CBUTTONTEST_BGCOLOR
+#  define CONFIG_CBUTTONTEST_BGCOLOR CONFIG_NXWIDGETS_DEFAULT_BACKCOLOR
+#endif
+
+#ifndef CONFIG_CBUTTONTEST_FONTCOLOR
+#  define CONFIG_CBUTTONTEST_FONTCOLOR CONFIG_NXWIDGETS_DEFAULT_FONTCOLOR
+#endif
+
+// What is the entry point called?
+
+#ifdef CONFIG_NSH_BUILTIN_APPS
+#  define MAIN_NAME cbutton_main
+#  define MAIN_STRING "cbutton_main: "
+#else
+#  define MAIN_NAME user_start
+#  define MAIN_STRING "user_start: "
+#endif
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Classes
+/////////////////////////////////////////////////////////////////////////////
+
+using namespace NXWidgets;
+
+class CButtonTest : public CNxServer
+{
+private:
+  CWidgetControl     *m_widgetControl;  // The controlling widget for the window
+  CNxFont            *m_nxFont;         // Default font
+  CBgWindow          *m_bgWindow;       // Background window instance
+  CNxString          *m_text;           // The button string
+  struct nxgl_point_s m_center;         // X, Y position the center of the button
+
+public:
+  // Constructor/destructors
+
+  CButtonTest();
+  ~CButtonTest();
+
+  // Initializer/unitializer.  These methods encapsulate the basic steps for
+  // starting and stopping the NX server
+
+  bool connect(void);
+  void disconnect(void);
+
+  // Create a window.  This method provides the general operations for
+  // creating a window that you can draw within.
+  //
+  // Those general operations are:
+  // 1) Create a dumb CWigetControl instance
+  // 2) Pass the dumb CWidgetControl instance to the window constructor
+  //    that inherits from INxWindow.  This will "smarten" the CWidgetControl
+  //    instance with some window knowlede
+  // 3) Call the open() method on the window to display the window.
+  // 4) After that, the fully smartened CWidgetControl instance can
+  //    be used to generate additional widgets by passing it to the
+  //    widget constructor
+
+  bool createWindow(void);
+
+  // Create a CButton instance.  This method will show you how to create
+  // a CButton widget
+
+  CButton *createButton(FAR const char *text);
+
+  // Draw the button.  This method illustrates how to draw the CButton widget.
+
+  void showButton(CButton *button);
+
+  // Perform a simulated mouse click on the button.  This method injects
+  // the mouse click through the NX heirarchy just as would real mouse
+  // hardward.
+
+  void click(void);
+
+  // The counterpart to click.  This simulates a button release through
+  // the same mechanism.
+
+  void release(void);
+
+  // Widget events are normally handled in a model loop (by calling goModel()).
+  // However, for this case we know when there should be press and release
+  // events so we don't have to poll.  We can just perform a one pass poll
+  // then check if the event was processed corredly.
+
+  bool poll(CButton *button);
+};
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Data
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Function Prototypes
+/////////////////////////////////////////////////////////////////////////////
+
+
+#endif // __UNITTESTS_CBUTTON_CBUTTONTEST_HXX
--- a/UnitTests/CButton/main.cxx
+++ b/UnitTests/CButton/main.cxx
@ -0,0 +1,155 @@
+/////////////////////////////////////////////////////////////////////////////
+// NxWidgets/UnitTests/CButton/main.cxx
+//
+//   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
+//    me be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Included Files
+/////////////////////////////////////////////////////////////////////////////
+
+#include <nuttx/config.h>
+
+#include <nuttx/init.h>
+#include <cstdio>
+#include <unistd.h>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+
+#include "cbuttontest.hxx"
+
+/////////////////////////////////////////////////////////////////////////////
+// Definitions
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Classes
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// Private Data
+/////////////////////////////////////////////////////////////////////////////
+
+static const char g_pushme[] = "Push Me";
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Function Prototypes
+/////////////////////////////////////////////////////////////////////////////
+
+// Suppress name-mangling
+
+extern "C" int MAIN_NAME(int argc, char *argv[]);
+
+/////////////////////////////////////////////////////////////////////////////
+// Public Functions
+/////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////
+// user_start/nxheaders_main
+/////////////////////////////////////////////////////////////////////////////
+
+int MAIN_NAME(int argc, char *argv[])
+{
+  // Create an instance of the font test
+
+  printf(MAIN_STRING "Create CButtonTest instance\n");
+  CButtonTest *test = new CButtonTest();
+
+  // Connect the NX server
+
+  printf(MAIN_STRING "Connect the CButtonTest instance to the NX server\n");
+  if (!test->connect())
+    {
+      printf(MAIN_STRING "Failed to connect the CButtonTest instance to the NX server\n");
+      delete test;
+      return 1;
+    }
+
+  // Create a window to draw into
+
+  printf(MAIN_STRING "Create a Window\n");
+  if (!test->createWindow())
+    {
+      printf(MAIN_STRING "Failed to create a window\n");
+      delete test;
+      return 1;
+    }
+
+  // Create a CButton instance
+
+  CButton *button = test->createButton(g_pushme);
+  if (!button)
+    {
+      printf(MAIN_STRING "Failed to create a button\n");
+      delete test;
+      return 1;
+    }
+
+  // Show the button
+
+  printf(MAIN_STRING "Show the button\n");
+  test->showButton(button);
+
+  // Wait two seconds, then perform a simulated mouse click on the button
+
+  sleep(2);
+  printf(MAIN_STRING "Click the button\n");
+  test->click();
+
+  // Poll for the mouse click event (of course this can hang if something fails)
+
+  bool clicked = test->poll(button);
+  printf(MAIN_STRING "Button is %s\n", clicked ? "clicked" : "released");
+
+  // Wait a second, then release the mouse buttone
+
+  sleep(1);
+  test->release();
+
+  // Poll for the mouse release event (of course this can hang if something fails)
+
+  clicked = test->poll(button);
+  printf(MAIN_STRING "Button is %s\n", clicked ? "clicked" : "released");
+
+  // Wait a few more seconds so that the tester can ponder the result
+
+  sleep(3);
+
+  // Clean up and exit
+
+  printf(MAIN_STRING "Clean-up and exit\n");
+  delete button;
+  delete test;
+  return 0;
+}
+