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- /****************************************************************************
- * apps/include/graphics/nxwm/chexcalculator.hxx
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership. The
- * ASF licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the
- * License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- ****************************************************************************/
- #ifndef __APPS_INCLUDE_GRAPHICS_NXWM_CHEXCALCULATOR_HXX
- #define __APPS_INCLUDE_GRAPHICS_NXWM_CHEXCALCULATOR_HXX
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <sys/types.h>
- #include <nuttx/nx/nxtk.h>
- #include "graphics/nxwidgets/cbuttonarray.hxx"
- #include "graphics/nxwidgets/clabel.hxx"
- #include "graphics/nxwidgets/cnxfont.hxx"
- #include "graphics/nxwm/iapplication.hxx"
- #include "graphics/nxwm/capplicationwindow.hxx"
- #include "graphics/nxwm/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 Hex calculator 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; /**< High 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 application
- * 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 // __APPS_INCLUDE_GRAPHICS_NXWM_CHEXCALCULATOR_HXX
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