Vizic Technologies
QWERTY Keypad Touchscreen LCD Demo - MBED + SmartGPU2 board
Diff: main.cpp
- Revision:
- 0:71a5ba330e01
- Child:
- 1:5278445c0b86
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Jul 10 03:33:11 2013 +0000
@@ -0,0 +1,211 @@
+/**************************************************************************************/
+/*SMARTGPU2 intelligent embedded graphics processor unit
+ those examples are for use the SMARTGPU2 with the mbed microcontoller, just connect tx,rx,and reset
+ Board:
+ http://vizictechnologies.com/#/smart-gpu-2/4577779046
+
+ www.vizictechnologies.com
+ Vizic Technologies copyright 2013 */
+/**************************************************************************************/
+
+#include "mbed.h"
+#include "SMARTGPU2.h"
+
+SMARTGPU2 lcd(TXPIN,RXPIN,RESETPIN); //create our object called "lcd"
+
+//KEYBOARD DEFINITIONS
+#define LETTERSLOWER 0
+#define LETTERSUPPER 1
+#define NUMBERS 2
+#define SPECCHAR 3
+#define KEYBOARD_X_SIZE 320
+#define KEYBOARD_Y_SIZE KEYBOARD_X_SIZE/2
+#define KEY_Y_TOP MAX_Y_LANDSCAPE - KEYBOARD_Y_SIZE //at the bottom of screen
+#define KEYXSIZE KEYBOARD_X_SIZE/10 //10 - columns
+#define KEYYSIZE KEYBOARD_Y_SIZE/4 //4 - rows
+
+//keys definitions
+#define SPACE ' '
+#define OK 0x01
+#define DEL 0x02
+#define TYPE 0x03
+#define KEYCASE 0x04
+
+//Keyboards type data, row1: 10 characters, row2: 9 characters, row3: 7 characters
+const char lettL[]= {"qwertyuiopasdfghjklzxcvbnm"}; //10-9-7 lower case
+const char lettU[]= {"QWERTYUIOPASDFGHJKLZXCVBNM"}; //10-9-7 upper case
+const char num []= {"1234567890-/:;()&@\"_.,?!'*"};//10-9-7
+const char spc []= {"[]{}#%^*+=:|~<>$-/\\_.,?!'*"};//10-9-7
+const char* keyboards[4]={lettL, lettU, num, spc};
+
+/*********************************************************/
+void drawSingleKey(char key, char keyboardType, ACTIVE state){ //draws the received key as "state"(SELECTED or DESELECTED)
+ unsigned int i=0;
+ char *data = (char*)keyboards[keyboardType];
+ char letter[2]={key,0};
+
+ //special case when key is ' '(space) or 0x01 "enter" or 0x02 "del" or 0x03 "type" or 0x04 "keycase"
+ if(key == ' ' || key <= KEYCASE){
+ switch(key){
+ case ' ': //space
+ lcd.objButton(KEYXSIZE+(KEYXSIZE/2), KEY_Y_TOP+(KEYYSIZE*3), (7*KEYXSIZE+(KEYXSIZE/2))+KEYXSIZE-1, KEY_Y_TOP+(KEYYSIZE*4)-1, state, "space");
+ break;
+ case OK: //OK
+ lcd.objButton(8*KEYXSIZE+(KEYXSIZE/2), KEY_Y_TOP+(KEYYSIZE*3), KEYBOARD_X_SIZE-1, KEY_Y_TOP+(KEYYSIZE*4)-1, state, "OK");
+ break;
+ case DEL: //delete
+ lcd.objButton(8*KEYXSIZE+(KEYXSIZE/2), KEY_Y_TOP+(KEYYSIZE*2), (8*KEYXSIZE+(KEYXSIZE/2))+KEYXSIZE-1, KEY_Y_TOP+(KEYYSIZE*3), state, "del");
+ break;
+ case TYPE: //keyboard type
+ lcd.objButton(KEYXSIZE/2, KEY_Y_TOP+(KEYYSIZE*2), (KEYXSIZE/2)+KEYXSIZE-1, KEY_Y_TOP+(KEYYSIZE*3), state, "type");
+ break;
+ case KEYCASE: //letters upper/lower case
+ lcd.objButton(0, KEY_Y_TOP+(KEYYSIZE*3), KEYXSIZE+(KEYXSIZE/2)-1, KEY_Y_TOP+(KEYYSIZE*4)-1, state, "case");
+ break;
+ default: //0x00 none
+ break;
+ }
+ return;
+ }
+ //any other key case
+ for(i=0;i<26;i++){ //search for the key in the received keyboardType data array
+ if(key == data[i]) break;
+ }
+ if(i<10){
+ lcd.objButton(i*KEYXSIZE, KEY_Y_TOP, (i*KEYXSIZE)+KEYXSIZE-1, KEY_Y_TOP+KEYYSIZE, state, letter);
+ }else if(i<19){
+ i-=10;
+ lcd.objButton(i*KEYXSIZE+(KEYXSIZE/2), KEY_Y_TOP+KEYYSIZE, (i*KEYXSIZE+(KEYXSIZE/2))+KEYXSIZE-1, KEY_Y_TOP+(KEYYSIZE*2), state, letter);
+ }else if(i<26){
+ i-=18;
+ lcd.objButton(i*KEYXSIZE+(KEYXSIZE/2), KEY_Y_TOP+(KEYYSIZE*2), (i*KEYXSIZE+(KEYXSIZE/2))+KEYXSIZE-1, KEY_Y_TOP+(KEYYSIZE*3), state, letter);
+ }
+}
+
+/*********************************************************/
+void drawAllKeyboard(char keyboardType){
+ unsigned int i=0;
+ char *data = (char*)keyboards[keyboardType];
+
+ for(i=0;i<26;i++){ //go through all keyboard data
+ drawSingleKey(*data++, keyboardType, DESELECTED);
+ }
+ //draw special keys
+ drawSingleKey(TYPE, keyboardType, DESELECTED);
+ drawSingleKey(DEL, keyboardType, DESELECTED);
+ drawSingleKey(KEYCASE, keyboardType, DESELECTED);
+ drawSingleKey(SPACE, keyboardType, DESELECTED);
+ drawSingleKey(OK, keyboardType, DESELECTED);
+}
+
+/*********************************************************/
+char getKeyTouch(char keyboardType){ //ask for a touch and if VALID inside the keyboard returns the touched key
+ char *data = (char*)keyboards[keyboardType];
+ POINT p;
+
+ if(lcd.touchScreen(&p) == VALID){ //ask for touch, if VALID
+ if(p.y > KEY_Y_TOP && p.y< (KEY_Y_TOP+KEYBOARD_Y_SIZE)){ //if touch inside keyboard
+ p.y -= KEY_Y_TOP; //substract
+ p.y /= (KEYBOARD_Y_SIZE/4); //obtain row
+ //switch with the obtained row
+ p.x--;
+ switch(p.y){
+ case 0: //1st row
+ p.x /= KEYXSIZE; //obtain column
+ break;
+ case 1: //2nd row
+ p.x -= (KEYXSIZE/2);
+ p.x /= KEYXSIZE; //obtain column
+ p.x += 10;
+ break;
+ case 2: //3rd row
+ p.x -= (KEYXSIZE/2);
+ p.x /= KEYXSIZE; //obtain column
+ p.x += 18;
+ if(p.x==18) return TYPE;
+ if(p.x==26) return DEL;
+ break;
+ default: //4rt row
+ p.x -= (KEYXSIZE/2);
+ p.x /= KEYXSIZE; //obtain column
+ if(p.x==0) return KEYCASE;
+ if(p.x>=8) return OK;
+ return ' ';
+ break;
+ }
+ return *(data+p.x);
+ }
+ }
+ return 0;
+}
+
+/***************************************************/
+/***************************************************/
+void initializeSmartGPU2(void){ //Initialize SMARTGPU2 Board
+ lcd.reset(); //physically reset SMARTGPU2
+ lcd.start(); //initialize the SMARTGPU2 processor
+}
+
+/***************************************************/
+/***************************************************/
+/***************************************************/
+/***************************************************/
+int main() {
+ unsigned int currentX=5, lastX=5, currentY=5;
+ char key = 0, currentKeyboard = LETTERSLOWER;
+
+ initializeSmartGPU2(); //Init communication with SmartGPU2 board
+
+ lcd.baudChange(BAUD7); //set a fast baud! for fast drawing
+ lcd.drawGradientRect(0, 0, MAX_X_LANDSCAPE, MAX_Y_LANDSCAPE, MAGENTA, BLACK, VERTICAL); //draw a background
+
+ lcd.drawRectangle(5, 5, MAX_X_LANDSCAPE-5, KEY_Y_TOP-5, WHITE, FILL); //draw text background
+ lcd.setTextColour(BLACK); //set text colour as black
+ lcd.setTextSize(FONT2); //set text size FONT2
+
+ drawAllKeyboard(currentKeyboard); //draw all keyboard
+
+ while(1){
+ while((key = getKeyTouch(currentKeyboard)) == 0x00); //loop until get a valid key
+ //once obtained a valid key
+ if(key!=OK && key!=DEL && key!=TYPE && key!=KEYCASE){ //only print if key is not special key
+ lcd.putLetter(lastX, currentY, key, ¤tX); //print key on lastX and save updated value in currentX
+ if(lastX==currentX){ //if currentX couldn't advance, means end of X row
+ currentY += 20; //jump 1 row in Y axis
+ if(currentY >= (KEY_Y_TOP-5)){ //if we reach the start of the keyboard
+ currentY=5;
+ lcd.drawRectangle(5, 5, MAX_X_LANDSCAPE-5, KEY_Y_TOP-5, WHITE, FILL); //draw text background
+ }
+ lastX=5; //reset lastX
+ lcd.putLetter(lastX, currentY, key, ¤tX); //print key on new lastX and currentY
+ }
+ lastX=currentX; //get new value
+ }else{
+ switch(key){
+ case TYPE:
+ if(currentKeyboard == LETTERSLOWER || currentKeyboard == LETTERSUPPER) currentKeyboard = NUMBERS; //go to next type
+ else if(currentKeyboard == NUMBERS) currentKeyboard = SPECCHAR;
+ else if (currentKeyboard == SPECCHAR) currentKeyboard = LETTERSLOWER;
+ drawAllKeyboard(currentKeyboard); //update all keyboard
+ break;
+ case DEL:
+ lcd.drawRectangle(5, 5, MAX_X_LANDSCAPE-5, KEY_Y_TOP-5, WHITE, FILL); //draw text background
+ lastX=5; //reset lastX
+ currentY=5; //reset currentY
+ break;
+ case KEYCASE:
+ if(currentKeyboard == LETTERSLOWER) currentKeyboard = LETTERSUPPER;
+ else if(currentKeyboard == LETTERSUPPER) currentKeyboard = LETTERSLOWER;
+ drawAllKeyboard(currentKeyboard); //update all keyboard
+ break;
+ default: //key == OK
+ //go to main menu - exit keyboard - or any other required action
+ break;
+ }
+ }
+ //draw the animated key
+ drawSingleKey(key, currentKeyboard, SELECTED); //draw the obtained key button as SELECTED
+ wait_ms(200); //wait 200ms with key as SELECTED
+ drawSingleKey(key, currentKeyboard, DESELECTED); //draw the obtained key button as DESELECTED
+ }
+}
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