70c2bc8810
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4767 42af7a65-404d-4744-a932-0658087f49c3
331 lines
9.9 KiB
C++
331 lines
9.9 KiB
C++
/****************************************************************************
|
|
* 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 "cnxfont.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:
|
|
/**
|
|
* The structure defines a pending operation.
|
|
*/
|
|
|
|
struct SPendingOperation
|
|
{
|
|
int64_t value; /**< Accumulated value */
|
|
uint8_t operation; /**< Identifies the operations */
|
|
};
|
|
|
|
/**
|
|
* Calculator state data.
|
|
*/
|
|
|
|
/**
|
|
* Cached constructor parameters.
|
|
*/
|
|
|
|
CTaskbar *m_taskbar; /**< Reference to the "parent" taskbar */
|
|
CApplicationWindow *m_window; /**< Reference to the application window */
|
|
|
|
/**
|
|
* Widgets
|
|
*/
|
|
|
|
NXWidgets::CButtonArray *m_keypad; /**< The calculator keyboard */
|
|
NXWidgets::CLabel *m_text; /**< The accumulator text display */
|
|
NXWidgets::CNxFont *m_font; /**< The font used in the calculator */
|
|
|
|
/**
|
|
* Calculator geometry. This stuff does not really have to be retained
|
|
* in memory. If you are pinched for memory, get rid of these.
|
|
*/
|
|
|
|
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 */
|
|
|
|
/**
|
|
* Calculator computational data. Note: Since we do not support
|
|
* parentheses and support only two levels of operator precedence, it is
|
|
* not necessary to maintain a stack of operations. Within there
|
|
* limitations, there can be at most only one pending low prececence
|
|
* operation and one pending high precedence operation. If you want
|
|
* to support parentheses or more levels of precedence, they you will
|
|
* have to extend the design.
|
|
*/
|
|
|
|
int64_t m_accum; /**< The current accumulated value */
|
|
int64_t m_memory; /**< The current value saved in memory */
|
|
struct SPendingOperation m_low; /**< Low precedence pending operation */
|
|
struct SPendingOperation m_high; /**< Hight precedence pending operation */
|
|
bool m_hexMode; /**< True if in hex mode */
|
|
bool m_result ; /**< True if the accumulator holds a previoius result */
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* Evaluate a binary operation.
|
|
*
|
|
* @param value1. The first value
|
|
* @param value2. The second value
|
|
*
|
|
* @return The result of the operation
|
|
*/
|
|
|
|
int64_t evaluateBinaryOperation(uint8_t operation, int64_t value1, int64_t value2);
|
|
|
|
/**
|
|
* 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
|