Grant Phillips
Class library for a touchscreen-based keypad for the LCD display present on the DISCO_F429ZI board.
Dependents: WIRE-BANDING_FT810 WIRE-BANDING_copy
Diff: KEYPAD_DISCO_F429ZI.cpp
- Revision:
- 0:8cc22acc00d2
- Child:
- 2:51f454b7c9ab
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/KEYPAD_DISCO_F429ZI.cpp Sun May 08 18:36:57 2016 +0000
@@ -0,0 +1,277 @@
+#include "KEYPAD_DISCO_F429ZI.h"
+#include "mbed.h"
+#include "TS_DISCO_F429ZI.h"
+#include "LCD_DISCO_F429ZI.h"
+
+
+KEYPAD_DISCO_F429ZI::KEYPAD_DISCO_F429ZI() {
+ LastKey=0;
+ ReadKeyState = 0;
+ MsgBColor = LCD_COLOR_YELLOW;
+ MsgFColor = LCD_COLOR_RED;
+ OutBColor = LCD_COLOR_WHITE;
+ OutFColor = LCD_COLOR_BLACK;
+ BackColor = LCD_COLOR_BLACK;
+ KeyBColor = LCD_COLOR_WHITE;
+ KeyFColor = LCD_COLOR_BLACK;
+ KeyPressColor = LCD_COLOR_GRAY;
+ KeysTopY=110;
+
+ Keys[0][0] = '1';
+ Keys[0][1] = '2';
+ Keys[0][2] = '3';
+ Keys[0][3] = 'A';
+ Keys[1][0] = '4';
+ Keys[1][1] = '5';
+ Keys[1][2] = '6';
+ Keys[1][3] = 'B';
+ Keys[2][0] = '7';
+ Keys[2][1] = '8';
+ Keys[2][2] = '9';
+ Keys[2][3] = 'C';
+ Keys[3][0] = '*';
+ Keys[3][1] = '0';
+ Keys[3][2] = '#';
+ Keys[3][3] = 'D';
+}
+
+
+void KEYPAD_DISCO_F429ZI::Show(int MessageBoxEnable, int OutBoxEnable) {
+ uint16_t x, y;
+ uint8_t row, col;
+
+ if(MessageBoxEnable > 0)
+ MessageBoxEnabledFlag = 1;
+ else
+ MessageBoxEnabledFlag = 0;
+
+ if(OutBoxEnable > 0)
+ OutBoxEnabledFlag = 1;
+ else
+ OutBoxEnabledFlag = 0;
+
+ lcd.Clear(BackColor);
+
+ /* Display Message textbox */
+ if(MessageBoxEnabledFlag) {
+ lcd.SetFont(&Font16);
+ lcd.SetBackColor(MsgBColor);
+ lcd.SetTextColor(MsgFColor);
+ lcd.DisplayStringAt(4, LINE(0)+4,(uint8_t *) " ", LEFT_MODE);
+ lcd.DisplayStringAt(4, LINE(1)+4,(uint8_t *) " ", LEFT_MODE);
+ lcd.SetTextColor(MsgBColor);
+ lcd.FillRect(0,0,240,4); //top filler
+ lcd.FillRect(0,LINE(0),4,36); //left filler
+ lcd.FillRect(235,LINE(0),5,36); //right filler
+ }
+
+ /* Display Output textbox */
+ if(OutBoxEnabledFlag) {
+ lcd.SetFont(&Font24);
+ lcd.SetBackColor(OutBColor);
+ lcd.SetTextColor(OutFColor);
+ lcd.DisplayStringAt(1,LINE(2),(uint8_t *) " ", LEFT_MODE);
+ lcd.SetTextColor(OutBColor);
+ lcd.FillRect(1,LINE(2)-4,238,5); //top filler
+ lcd.DrawVLine(0,LINE(2)-4,28); //left filler
+ lcd.DrawVLine(239,LINE(2)-4,28); //right filler
+ }
+
+ /* Draw buttons */
+ lcd.SetTextColor(KeyBColor);
+ for(y=KeysTopY; y<=KeysTopY+180; y=y+60)
+ for(x=30; x<=210; x=x+60)
+ lcd.FillCircle(x,y,25);
+
+ /* Draw button text */
+ lcd.SetFont(&Font24);
+ lcd.SetTextColor(KeyFColor);
+ lcd.SetBackColor(KeyBColor);
+ row=0;
+ for(y=KeysTopY; y<=KeysTopY+180; y=y+60)
+ {
+ col=0;
+ for(x=30; x<=210; x=x+60)
+ {
+ lcd.DisplayChar(x-8, y-8, Keys[row][col]);
+ col++;
+ }
+ row++;
+ }
+
+ ts.Init(240, 320);
+}
+
+char KEYPAD_DISCO_F429ZI::ReadKey() {
+ uint16_t x, y;
+ TS_StateTypeDef TS_State;
+
+ ts.GetState(&TS_State);
+
+ switch(ReadKeyState) {
+ case 0: { //wait for key press
+ if (TS_State.TouchDetected) { //if the screen was touched
+ x = TS_State.X; //read the x value
+ y = TS_State.Y; //read the y value
+ if((x > 3) && (x <= 60) && (y > KeysTopY - 30) && (y <= KeysTopY + 30)) { //row0, col0
+ row=0;col=0;
+ LastkeyX = 30;
+ LastkeyY = KeysTopY;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 60) && (x <= 120) && (y > KeysTopY - 30) && (y <= KeysTopY + 30)) { //row0, col1
+ row=0;col=1;
+ LastkeyX = 90;
+ LastkeyY = KeysTopY;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 120) && (x <= 180) && (y > KeysTopY - 30) && (y <= KeysTopY + 30)) { //row0, col2
+ row=0;col=2;
+ LastkeyX = 150;
+ LastkeyY = KeysTopY;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 180) && (x <= 237) && (y > KeysTopY - 30) && (y <= KeysTopY + 30)) { //row0, col3
+ row=0;col=3;
+ LastkeyX = 210;
+ LastkeyY = KeysTopY;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+
+ if((x > 3) && (x <= 60) && (y > KeysTopY + 30) && (y <= KeysTopY + 90)) { //row1, col0
+ row=1;col=0;
+ LastkeyX = 30;
+ LastkeyY = KeysTopY+60;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 60) && (x <= 120) && (y > KeysTopY + 30) && (y <= KeysTopY + 90)) { //row1, col1
+ row=1;col=1;
+ LastkeyX = 90;
+ LastkeyY = KeysTopY+60;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 120) && (x <= 180) && (y > KeysTopY + 30) && (y <= KeysTopY + 90)) { //row1, col2
+ row=1;col=2;
+ LastkeyX = 150;
+ LastkeyY = KeysTopY+60;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 180) && (x <= 237) && (y > KeysTopY + 30) && (y <= KeysTopY + 90)) { //row1, col3
+ row=1;col=3;
+ LastkeyX = 210;
+ LastkeyY = KeysTopY+60;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+
+ if((x > 3) && (x <= 60) && (y > KeysTopY + 90) && (y <= KeysTopY + 150)) { //row2, col0
+ row=2;col=0;
+ LastkeyX = 30;
+ LastkeyY = KeysTopY+120;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 60) && (x <= 120) && (y > KeysTopY + 90) && (y <= KeysTopY + 150)) { //row2, col1
+ row=2;col=1;
+ LastkeyX = 90;
+ LastkeyY = KeysTopY+120;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 120) && (x <= 180) && (y > KeysTopY + 90) && (y <= KeysTopY + 150)) { //row2, col2
+ row=2;col=2;
+ LastkeyX = 150;
+ LastkeyY = KeysTopY+120;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 180) && (x <= 237) && (y > KeysTopY + 90) && (y <= KeysTopY + 150)) { //row2, col3
+ row=2;col=3;
+ LastkeyX = 210;
+ LastkeyY = KeysTopY+120;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+
+ if((x > 3) && (x <= 60) && (y > KeysTopY + 150) && (y <= KeysTopY + 210)) { //row3, col0
+ row=3;col=0;
+ LastkeyX = 30;
+ LastkeyY = KeysTopY+180;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 60) && (x <= 120) && (y > KeysTopY + 150) && (y <= KeysTopY + 210)) { //row3, col1
+ row=3;col=1;
+ LastkeyX = 90;
+ LastkeyY = KeysTopY+180;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 120) && (x <= 180) && (y > KeysTopY + 150) && (y <= KeysTopY + 210)) { //row3, col2
+ row=3;col=2;
+ LastkeyX = 150;
+ LastkeyY = KeysTopY+180;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+ else if((x > 180) && (x <= 237) && (y > KeysTopY + 150) && (y <= KeysTopY + 210)) { //row3, col3
+ row=3;col=3;
+ LastkeyX = 210;
+ LastkeyY = KeysTopY+180;
+ LastKey = Keys[row][col];
+ ReadKeyState = 10;
+ }
+
+
+ // else
+ // {
+ // //do nothing when not incorrect touch position
+ // }
+ }
+ } break;
+
+
+ case 10: { //draw button darker
+ lcd.SetFont(&Font24);
+ lcd.SetTextColor(KeyPressColor);
+ lcd.FillCircle(LastkeyX,LastkeyY,25);
+ lcd.SetTextColor(KeyFColor);
+ lcd.SetBackColor(KeyPressColor);
+ lcd.DisplayChar(LastkeyX-8, LastkeyY-8, Keys[row][col]);
+
+ ReadKeyState = 20;
+ } break;
+
+
+ case 20: { //wait for key to be released
+ if(TS_State.TouchDetected == 0)
+ ReadKeyState = 30;
+ } break;
+
+
+ case 30: //draw key normal again
+ {
+ lcd.SetFont(&Font24);
+ lcd.SetTextColor(KeyBColor);
+ lcd.FillCircle(LastkeyX,LastkeyY,25);
+ lcd.SetTextColor(KeyFColor);
+ lcd.SetBackColor(KeyBColor);
+ lcd.DisplayChar(LastkeyX-8, LastkeyY-8, Keys[row][col]);
+
+ LastKey = 0;
+ ReadKeyState = 0;
+ } break;
+ }
+
+ wait(0.01); //to allow for contact bounce
+
+ return LastKey;
+}
+
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