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cfg_units.h
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cfg_units.h
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#pragma once // Please format this file with clang before check-in to GitHub
/*
File: cfg_units.h
Software: Barry Hansen, K7BWH, barry@k7bwh.com, Seattle, WA
Hardware: John Vanderbeck, KM7O, Seattle, WA
Purpose: This is the 'control panel' for one-time Griduino setup.
Since it's not intended for a driver in motion, we can use
a smaller font and cram more stuff onto the screen.
+-------------------------------------------+
| * Units > |
| |
| Distance (o)[ Miles, inHg ] |. . .yRow1
| ( )[ Kilometers, hPa ] |. . .yRow2
| |
| |
| |
| |
| v1.14, Feb 12 2024 |... yRow9
+-------------------------------------------+
*/
#include <Adafruit_ILI9341.h> // TFT color display library
#include "constants.h" // Griduino constants and colors
#include "logger.h" // conditional printing to Serial port
#include "model_gps.h" // Model of a GPS for model-view-controller
#include "TextField.h" // Optimize TFT display text for proportional fonts
#include "view.h" // Base class for all views
// ========== extern ===========================================
extern Logger logger; // Griduino.ino
extern Model *model; // "model" portion of model-view-controller
extern void showDefaultTouchTargets(); // Griduino.ino
// ========== class ViewCfgUnits ==============================
class ViewCfgUnits : public View {
public:
// ---------- public interface ----------
// This derived class must implement the public interface:
ViewCfgUnits(Adafruit_ILI9341 *vtft, int vid) // ctor
: View{vtft, vid} {
background = cBACKGROUND; // every view can have its own background color
}
void updateScreen();
void startScreen();
void endScreen();
bool onTouch(Point touch);
protected:
// ---------- local data for this derived class ----------
// color scheme: see constants.h
// vertical placement of text rows ---label--- ---button---
const int yRow1 = 92; // "English", "Miles, inHg"
const int yRow2 = yRow1 + 50; // "Metric", "Kilometers, hPa"
const int yRow9 = gScreenHeight - 10; // "v1.14, Jan 22 2024"
#define col1 10 // left-adjusted column of text
#define xButton 160 // indented column of buttons
// clang-format off
#define nTextUnits 4
TextField txtStatic[nTextUnits] = {
// text x, y color
{"Units", -1, 20, cHIGHLIGHT, ALIGNCENTER},
{"English", col1, yRow1, cVALUE},
{"Metric", col1, yRow2, cVALUE},
{PROGRAM_VERDATE, -1, yRow9, cLABEL, ALIGNCENTER},
};
// clang-format on
enum buttonID {
eENGLISH = 0,
eMETRIC,
};
// clang-format off
#define nButtonsUnits 2
FunctionButton myButtons[nButtonsUnits] = {
// label origin size touch-target
// text x,y w,h x,y w,h radius color functionID
{"Miles, Feet, inHg", xButton, yRow1-26, 150, 40, {112, yRow1-36, 204, 56}, 4, cVALUE, eENGLISH}, // [eENGLISH] set units Miles/inHg
{"Kilometers, hPa", xButton, yRow2-26, 150, 40, {112, yRow2-31, 204, 64}, 4, cVALUE, eMETRIC}, // [eMETRIC] set units Metric
};
// clang-format on
// ---------- local functions for this derived class ----------
void setEnglish() {
logger.info("->->-> Clicked ENGLISH UNITS button.");
model->setEnglish();
}
void setMetric() {
logger.info("->->-> Clicked METRIC UNITS button.");
model->setMetric();
}
}; // end class ViewCfgUnits
// ============== implement public interface ================
void ViewCfgUnits::updateScreen() {
// called on every pass through main()
// ----- show selected radio buttons by filling in the circle
for (int ii = eENGLISH; ii <= eMETRIC; ii++) {
FunctionButton item = myButtons[ii];
int xCenter = item.x - 16;
int yCenter = item.y + (item.h / 2);
int buttonFillColor = cBACKGROUND;
if (ii == eENGLISH && !model->gMetric) {
buttonFillColor = cLABEL;
}
if (ii == eMETRIC && model->gMetric) {
buttonFillColor = cLABEL;
}
tft->fillCircle(xCenter, yCenter, 4, buttonFillColor);
}
} // end updateScreen
void ViewCfgUnits::startScreen() {
// called once each time this view becomes active
this->clearScreen(this->background); // clear screen
txtStatic[0].setBackground(this->background); // set background for all TextFields in this view
TextField::setTextDirty(txtStatic, nTextUnits); // make sure all fields get re-printed on screen change
setFontSize(eFONTSMALLEST);
drawAllIcons(); // draw gear (settings) and arrow (next screen)
showDefaultTouchTargets(); // optionally draw box around default button-touch areas
showMyTouchTargets(myButtons, nButtonsUnits); // optionally show this view's touch targets
showScreenBorder(); // optionally outline visible area
showScreenCenterline(); // optionally draw visual alignment bar
// ----- draw text fields
for (int ii = 0; ii < nTextUnits; ii++) {
txtStatic[ii].print();
}
// ----- draw buttons
setFontSize(eFONTSMALLEST);
for (int ii = 0; ii < nButtonsUnits; ii++) {
FunctionButton item = myButtons[ii];
tft->fillRoundRect(item.x, item.y, item.w, item.h, item.radius, cBUTTONFILL);
tft->drawRoundRect(item.x, item.y, item.w, item.h, item.radius, cBUTTONOUTLINE);
// ----- label on top of button
int xx = getOffsetToCenterTextOnButton(item.text, item.x, item.w);
tft->setCursor(xx, item.y + item.h / 2 + 5); // place text centered inside button
tft->setTextColor(item.color);
tft->print(item.text);
}
// ----- draw outlines of radio buttons
for (int ii = eENGLISH; ii <= eMETRIC; ii++) {
FunctionButton item = myButtons[ii];
int xCenter = item.x - 16;
int yCenter = item.y + (item.h / 2);
// outline the radio button
// the active button will be indicated in updateScreen()
tft->drawCircle(xCenter, yCenter, 7, cVALUE);
}
showProgressBar(6, 7); // draw marker for advancing through settings
updateScreen(); // update UI immediately, don't wait for laggy mainline loop
} // end startScreen()
void ViewCfgUnits::endScreen() {
// Called once each time this view becomes INactive
// This is a 'goodbye kiss' to do cleanup work
// For the current configuration screen; save our settings here instead of on each
// button press because writing to NVR is slow (0.5 sec) and would delay the user
// while trying to press a button many times in a row.
saveConfig();
}
bool ViewCfgUnits::onTouch(Point touch) {
bool handled = false; // assume a touch target was not hit
for (int ii = 0; ii < nButtonsUnits; ii++) {
FunctionButton item = myButtons[ii];
if (item.hitTarget.contains(touch)) {
handled = true; // hit!
switch (item.functionIndex) // do the thing
{
case eENGLISH:
setEnglish();
break;
case eMETRIC:
setMetric();
break;
default:
logger.error("Error, unknown function ", item.functionIndex);
break;
}
updateScreen(); // update UI immediately, don't wait for laggy mainline loop
}
}
return handled; // true=handled, false=controller uses default action
} // end onTouch()