Add a hex calculator example to NxWM

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4760 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 276 insertions, 0 deletions

diff --git a/NxWidgets/nxwm/include/chexcalculator.hxx b/NxWidgets/nxwm/include/chexcalculator.hxx
new file mode 100644
index 000000000..d73e17faf
--- /dev/null
+++ b/NxWidgets/nxwm/include/chexcalculator.hxx
@@ -0,0 +1,276 @@
+/****************************************************************************
+ * NxWidgets/nxwm/include/chexcalculator.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 __INCLUDE_CHEXCALCULATOR_HXX
+#define __INCLUDE_CHEXCALCULATOR_HXX
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+ 
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <nuttx/nx/nxtk.h>
+#include <nuttx/nx/nxconsole.h>
+
+#include "cbuttonarray.hxx"
+#include "clabel.hxx"
+
+#include "iapplication.hxx"
+#include "capplicationwindow.hxx"
+#include "ctaskbar.hxx"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+#define NXWM_HEXCALCULATOR_NROWS    6
+#define NXWM_HEXCALCULATOR_NCOLUMNS 6
+
+/****************************************************************************
+ * Implementation Classes
+ ****************************************************************************/
+
+#if defined(__cplusplus)
+
+namespace NxWM
+{
+  /**
+   * This class implements the NxConsole application.
+   */
+
+  class CHexCalculator : public  IApplication,
+                         private IApplicationCallback,
+                         private NXWidgets::CWidgetEventHandler
+  {
+  private:
+    CTaskbar                *m_taskbar;    /**< Reference to the "parent" taskbar */
+    CApplicationWindow      *m_window;     /**< Reference to the application window */
+    NXWidgets::CButtonArray *m_keypad;     /**< The calculator keyboard */
+    NXWidgets::CLabel       *m_text;       /**< The accumulator text display */
+    struct nxgl_size_s       m_windowSize; /**< The size of the calculator window */
+    struct nxgl_size_s       m_keypadSize; /**< The size the calculator keypad */
+    struct nxgl_size_s       m_buttonSize; /**< The size of one calculator button */
+    struct nxgl_size_s       m_textSize;   /**< The size of the calculator textbox */
+    struct nxgl_point_s      m_keypadPos;  /**< The position the calculator keypad */
+    struct nxgl_point_s      m_textPos;    /**< The position of the calculator textbox */
+    uint64_t                 m_operand;    /**< Previously entered operand */
+    uint64_t                 m_accum;      /**< The current accumulated value */
+    uint64_t                 m_memory;     /**< The current value in memory */
+    uint8_t                  m_pending;    /**< The pending operation */
+    bool                     m_hexMode;    /**< True if in hex mode */
+
+   /**
+    * Select the geometry of the calculator given the current window size.
+    * Only called as part of construction.
+    */
+
+   inline void setGeometry(void);
+
+    /**
+     * Create the calculator keypad.  Only start as part of the applicaiton
+     * start method.
+     */
+
+   inline bool createCalculator(void);
+
+    /**
+     * Applies labels to the keys.
+     */
+
+    void labelKeypad(void);
+
+    /**
+     * Show the current value of the accumulator.
+     */
+
+    void updateText(void);
+
+    /**
+     * Called when the window minimize button is pressed.
+     */
+
+    void minimize(void);
+
+    /**
+     * Called when the window minimize close is pressed.
+     */
+
+    void close(void);
+
+    /**
+     * Handle a widget action event.  For CImage, this is a button pre-
+     * release event.
+     *
+     * @param e The event data.
+     */
+
+    void handleActionEvent(const NXWidgets::CWidgetEventArgs &e);
+
+  public:
+    /**
+     * CHexCalculator constructor
+     *
+     * @param window.  The application window
+     *
+     * @param taskbar.  A pointer to the parent task bar instance
+     * @param window.  The window to be used by this application.
+     */
+
+    CHexCalculator(CTaskbar *taskbar, CApplicationWindow *window);
+
+    /**
+     * CHexCalculator destructor
+     */
+
+    ~CHexCalculator(void);
+
+    /**
+     * Each implementation of IApplication must provide a method to recover
+     * the contained CApplicationWindow instance.
+     */
+
+    IApplicationWindow *getWindow(void) const;
+
+    /**
+     * Get the icon associated with the application
+     *
+     * @return An instance if IBitmap that may be used to rend the
+     *   application's icon.  This is an new IBitmap instance that must
+     *   be deleted by the caller when it is no long needed.
+     */
+
+    NXWidgets::IBitmap *getIcon(void);
+
+    /**
+     * Get the name string associated with the application
+     *
+     * @return A copy if CNxString that contains the name of the application.
+     */
+
+    NXWidgets::CNxString getName(void);
+
+    /**
+     * Start the application (perhaps in the minimized state).
+     *
+     * @return True if the application was successfully started.
+     */
+
+    bool run(void);
+
+    /**
+     * Stop the application.
+     */
+
+    void stop(void);
+
+    /**
+     * Destroy the application and free all of its resources.  This method
+     * will initiate blocking of messages from the NX server.  The server
+     * will flush the window message queue and reply with the blocked
+     * message.  When the block message is received by CWindowMessenger,
+     * it will send the destroy message to the start window task which
+     * will, finally, safely delete the application.
+     */
+
+    void destroy(void);
+
+    /**
+     * The application window is hidden (either it is minimized or it is
+     * maximized, but not at the top of the hierarchy
+     */
+
+    void hide(void);
+
+    /**
+     * Redraw the entire window.  The application has been maximized or
+     * otherwise moved to the top of the hierarchy.  This method is call from
+     * CTaskbar when the application window must be displayed
+     */
+
+    void redraw(void);
+
+    /**
+     * Report of this is a "normal" window or a full screen window.  The
+     * primary purpose of this method is so that window manager will know
+     * whether or not it show draw the task bar.
+     *
+     * @return True if this is a full screen window.
+     */
+
+    bool isFullScreen(void) const;
+  };
+
+  class CHexCalculatorFactory : public IApplicationFactory
+  {
+  private:
+    CTaskbar *m_taskbar;  /**< The taskbar */
+
+  public:
+    /**
+     * CHexCalculatorFactory Constructor
+     *
+     * @param taskbar.  The taskbar instance used to terminate calibration
+     */
+
+    CHexCalculatorFactory(CTaskbar *taskbar);
+
+    /**
+     * CHexCalculatorFactory Destructor
+     */
+
+    inline ~CHexCalculatorFactory(void) { }
+
+    /**
+     * Create a new instance of an CHexCalculator (as IApplication).
+     */
+
+    IApplication *create(void);
+
+    /**
+     * Get the icon associated with the application
+     *
+     * @return An instance if IBitmap that may be used to rend the
+     *   application's icon.  This is an new IBitmap instance that must
+     *   be deleted by the caller when it is no long needed.
+     */
+
+    NXWidgets::IBitmap *getIcon(void);
+  };
+}
+#endif // __cplusplus
+
+#endif // __INCLUDE_CHEXCALCULATOR_HXX