![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Basic calculator example to show the LPC4088 Experiment Base Board with a touch LCD from DisplayModule
Dependencies: DmTftLibrary mbed
Fork of dm_calc by
main.cpp
- Committer:
- displaymodule
- Date:
- 2014-07-09
- Revision:
- 2:b17b19212e5a
- Parent:
- 1:9a3ae682a75e
- Child:
- 4:71588a1e3618
File content as of revision 2:b17b19212e5a:
/********************************************************************************************** Copyright (c) 2014 DisplayModule. All rights reserved. Redistribution and use of this source code, part of this source code or any compiled binary based on this source code is permitted as long as the above copyright notice and following disclaimer is retained. DISCLAIMER: THIS SOFTWARE IS SUPPLIED "AS IS" WITHOUT ANY WARRANTIES AND SUPPORT. DISPLAYMODULE ASSUMES NO RESPONSIBILITY OR LIABILITY FOR THE USE OF THE SOFTWARE. ********************************************************************************************/ /****************************************************************************** * Includes *****************************************************************************/ #include "mbed.h" #include "DmTftHX8353C.h" #include "DmTftS6D0164.h" #include "DmTftIli9325.h" #include "DmTftIli9341.h" #include "DmTftSsd2119.h" #include "DmTouch.h" #include "Button.h" /****************************************************************************** * Typedefs and defines *****************************************************************************/ typedef enum { MODE_WANT_ARG1, MODE_WANT_ARG1_OR_OP, MODE_WANT_ARG2, MODE_WANT_ARG2_OR_OP, } calc_mode_t; #define MARGIN 5 #define RESULT_MARGIN_X (MARGIN*3) #define RESULT_MARGIN_Y (MARGIN*3) #define NUM_BUTTONS (sizeof(captions)/sizeof(captions[0])) #if 1 /* Displays without adapter */ #define DM_PIN_SPI_MOSI D11 #define DM_PIN_SPI_MISO D12 #define DM_PIN_SPI_SCLK D13 #define DM_PIN_CS_TOUCH D4 #define DM_PIN_CS_TFT D10 #define DM_PIN_CS_SDCARD D8 #define DM_PIN_CS_FLASH D6 #else /* Displays with adapter */ #define DM_PIN_SPI_MOSI A0 #define DM_PIN_SPI_MISO D9 #define DM_PIN_SPI_SCLK A1 #define DM_PIN_CS_TOUCH D8 #define DM_PIN_CS_TFT A3 #define DM_PIN_CS_SDCARD D10 #endif //#define LANDSCAPE /****************************************************************************** * Local variables *****************************************************************************/ //DmTftIli9325 tft; /* DM_TFT28_103 and DM_TFT24_104 */ DmTftIli9341 tft; /* DM_TFT28_105 */ //DmTftSsd2119 tft; /* DM_TFT35_107 */ //DmTouch touch(DmTouch::DM_TFT28_103, DmTouch::Software); /* For LPC4088 QuickStart Board */ //DmTouch touch(DmTouch::DM_TFT28_103); //DmTouch touch(DmTouch::DM_TFT24_104, DmTouch::Software); /* For LPC4088 QuickStart Board */ //DmTouch touch(DmTouch::DM_TFT24_104); DmTouch touch(DmTouch::DM_TFT28_105); //DmTouch touch(DmTouch::DM_TFT35_107); DigitalInOut csTouch(DM_PIN_CS_TOUCH, PIN_OUTPUT, PullUp, 1); DigitalInOut csDisplay(DM_PIN_CS_TFT, PIN_OUTPUT, PullUp, 1); DigitalInOut csSDCard(DM_PIN_CS_SDCARD, PIN_OUTPUT, PullUp, 1); #ifdef DM_PIN_CS_FLASH DigitalInOut csFlash(DM_PIN_CS_FLASH, PIN_OUTPUT, PullUp, 1); #endif #ifdef LANDSCAPE #define BUTTONS_PER_LINE 6 #define BUTTONS_NUM_LINES 3 /* * 1 2 3 4 5 + * 6 7 8 9 0 - * * / = clr */ const char* captions[] = { "1","2","3","4","5","+", "6","7","8","9","0","-", "*","/","=","clr", }; #else #define BUTTONS_PER_LINE 4 #define BUTTONS_NUM_LINES 4 /* * 1 2 3 + * 4 5 6 - * 7 8 9 * * 0 = clr / */ const char* captions[] = { "1","2","3","+", "4","5","6","-", "7","8","9","*", "0","=","clr","/", }; #endif Button* buttons[NUM_BUTTONS]; static char buff[25] = {0}; static bool redrawResult = true; static bool clearResult = true; /****************************************************************************** * Global variables *****************************************************************************/ /****************************************************************************** * Local functions *****************************************************************************/ void handleClick(uint32_t arg) { static int val1 = 0; static int val2 = 0; static int op = 0; static calc_mode_t mode = MODE_WANT_ARG1; static int strpos = 0; switch (arg) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': if ((mode == MODE_WANT_ARG1) || (mode == MODE_WANT_ARG1_OR_OP)) { val1 = val1*10 + (arg - '0'); mode = MODE_WANT_ARG1_OR_OP; buff[strpos++] = arg; } else if ((mode == MODE_WANT_ARG2) || (mode == MODE_WANT_ARG2_OR_OP)) { val2 = val2*10 + (arg - '0'); mode = MODE_WANT_ARG2_OR_OP; buff[strpos++] = arg; } break; case '+': case '-': case '*': case '/': if (mode == MODE_WANT_ARG1_OR_OP) { op = arg; mode = MODE_WANT_ARG2; buff[strpos++] = arg; } else if (mode == MODE_WANT_ARG2_OR_OP) { // already have "a op b", calculate it and go to "c op" switch (op) { case '+': val1 = val1 + val2; break; case '-': val1 = val1 - val2; break; case '*': val1 = val1 * val2; break; case '/': val1 = val1 / val2; break; } op = arg; val2 = 0; mode = MODE_WANT_ARG2; strpos = sprintf(buff, "%d%c", val1, op); clearResult = true; } break; case 'c': val1 = val2 = op = 0; mode = MODE_WANT_ARG1; strpos = 0; clearResult = true; break; case '=': default: if (mode == MODE_WANT_ARG2_OR_OP) { // already have "a op b", calculate it and go to "c" switch (op) { case '+': val1 = val1 + val2; break; case '-': val1 = val1 - val2; break; case '*': val1 = val1 * val2; break; case '/': val1 = val1 / val2; break; } mode = MODE_WANT_ARG1_OR_OP; val2 = 0; strpos = sprintf(buff, "%d", val1); clearResult = true; } break; } buff[strpos] = '\0'; redrawResult = true; } /****************************************************************************** * Main *****************************************************************************/ int main() { uint16_t x = 0; uint16_t y = 0; uint16_t w = tft.width(); uint16_t h = tft.height(); uint16_t size = (w - (BUTTONS_PER_LINE + 1)*MARGIN)/BUTTONS_PER_LINE; uint16_t yoff = h - (size + MARGIN)*BUTTONS_NUM_LINES; bool down = false; for (int i = 0; i < NUM_BUTTONS;i++) { x = MARGIN + (size + MARGIN) * (i % BUTTONS_PER_LINE); y = yoff + (size + MARGIN) * (i / BUTTONS_PER_LINE); buttons[i] = new Button(captions[i], x, y, size, size); buttons[i]->setAction(handleClick, captions[i][0]); } tft.init(); tft.clearScreen(BRIGHT_RED); tft.fillRectangle(RESULT_MARGIN_X, RESULT_MARGIN_Y, w-RESULT_MARGIN_X, yoff-RESULT_MARGIN_Y, BLACK); touch.init(); for (int i = 0; i < NUM_BUTTONS; i++) { buttons[i]->draw(&tft); } while(true) { touch.readTouchData(x, y, down); /* The following printouts are for some unexplainable reason needed on the LPC4088 QuickStart Board in combination with the MBED online compiler. The printouts are not needed when using an external compiler, e.g. Keil uVision or LPCXpresso IDE. */ #if defined(__LPC407x_8x_177x_8x_H__) if (down) { printf("DOWN %4d, %4d\n", x, y); } else { printf("UP %4d, %4d\n", x, y); } #endif for (int i = 0; i < NUM_BUTTONS; i++) { if (buttons[i]->handle(x, y, down)) { buttons[i]->draw(&tft); } } if (clearResult) { clearResult = false; tft.fillRectangle(RESULT_MARGIN_X, RESULT_MARGIN_Y, w-RESULT_MARGIN_X, yoff-RESULT_MARGIN_Y, BLACK); } if (redrawResult) { redrawResult = false; tft.drawStringCentered(RESULT_MARGIN_X, RESULT_MARGIN_Y, w-RESULT_MARGIN_X, yoff-RESULT_MARGIN_Y, &buff[0]); } wait(0.02); } }