![](/media/cache/profiles/2e72ed76b7b3b9ce2f15fce64178dfaf.jpg.50x50_q85.jpg)
Shows how to use a display and the touch controller. A very basic calculator. Note that for some displays the LANDSCAPE define must be set for the layout to be correct.
Dependencies: DmTftLibrary mbed
Diff: main.cpp
- Revision:
- 0:3713b01e72fe
- Child:
- 1:9a3ae682a75e
diff -r 000000000000 -r 3713b01e72fe main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue May 20 15:36:25 2014 +0000 @@ -0,0 +1,263 @@ +/********************************************************************************************** + 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 0 /* 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 + +/****************************************************************************** + * Local variables + *****************************************************************************/ + +//DmTftHX8353C tft; /* DM_TFT18_101 */ +//DmTftS6D0164 tft; /* DM_TFT22_102 */ +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, false); /* For LPC4088 QuickStart Board */ +//DmTouch touch(DmTouch::DM_TFT28_103); +//DmTouch touch(DmTouch::DM_TFT24_104, false); /* 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 + +/* + * 7 8 9 + + * 4 5 6 - + * 3 2 1 * + * 0 = clr / + */ +const char* captions[] = { + "7","8","9","+", + "4","5","6","-", + "3","2","1","*", + "0","=","clr","/", +}; +Button* buttons[NUM_BUTTONS]; + +static char buff[25] = {0}; +static bool redrawResult = true; +static bool clearResult = true; + +#ifdef DEBUG + static char debug[25] = {0}; + static char debug2[25] = {0}; + static int debug_pos = 0; +#endif + +/****************************************************************************** + * 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; + +#ifdef DEBUG + debug2[debug_pos] = '0'+mode; + debug[debug_pos] = arg; + debug_pos++; + debug[debug_pos] = '\0'; + debug_pos = debug_pos%25; +#endif + 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 - 5*MARGIN)/4; + uint16_t yoff = h - (size + MARGIN)*4; + bool down = false; + + for (int i = 0; i < NUM_BUTTONS;i++) { + x = MARGIN + (size + MARGIN) * (i % 4); + y = yoff + (size + MARGIN) * (i / 4); + 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); + + 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]); +#ifdef DEBUG + tft.drawString(5, 5, &debug[0]); + tft.drawString(5, 25, &debug2[0]); + tft.drawNumber(5, 45, val1, 6); + tft.drawNumber(5, 65, val2, 6); + tft.drawString(5, 25, &debug2[0]); +#endif + } + wait(0.02); + } +}