thooge/esp32-nmea2000-obp60
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Code Releases Activity

Hold old map by connection lost

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This commit is contained in:
norbert-walter
2025-12-13 21:28:52 +01:00
parent b54acbae42
commit 213812ed14
1 changed files with 16 additions and 8 deletions
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24
lib/obp60task/PageNavigation.cpp
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@@ -19,13 +19,18 @@ bool firstRun = true; // Detect the first page run
int zoom = 15; // Default zoom level
bool showValues = false; // Show values HDT, SOG, DBT in navigation map
// Init image backup for navigation map
uint8_t* imageBackupData = (uint8_t*) heap_caps_malloc((GxEPD_WIDTH * GxEPD_HEIGHT), MALLOC_CAP_SPIRAM); // Allocate PSRAM for image backup buffer for navigation map(400 x 300 pix)
private:
uint8_t* imageBackupData = nullptr;
int imageBackupWidth = 0;
int imageBackupHeight = 0;
size_t imageBackupSize = 0;
bool hasImageBackup = false;
public:
PageNavigation(CommonData &common){
commonData = &common;
common.logger->logDebug(GwLog::LOG,"Instantiate PageNavigation");
imageBackupData = (uint8_t*)heap_caps_malloc((GxEPD_WIDTH * GxEPD_HEIGHT), MALLOC_CAP_SPIRAM);
}
virtual int handleKey(int key){
@@ -124,9 +129,6 @@ public:
static double depthBelowTransducer = 0;
int imgWidth = 0;
int imgHeight = 0;
int imgBackupWidth = 400;
int imgBackupHeight = 250;
bool hasImageBackup = false;
// Get boat values #1 Latitude
GwApi::BoatValue *bvalue1 = pageData.values[0]; // First element in list (only one value by PageOneValue)
@@ -396,11 +398,17 @@ public:
decoder.decodeBase64(b64, imageData, imgSize, decodedSize);
// Copy actual navigation man to ackup map
memcpy(imageBackupData, imageData, imgSize);
imageBackupWidth = imgWidth;
imageBackupHeight = imgHeight;
imageBackupSize = imgSize;
if (decodedSize > 0) {
memcpy(imageBackupData, imageData, decodedSize);
imageBackupSize = decodedSize;
}
hasImageBackup = true;
// Show image (navigation map)
getdisplay().drawBitmap(0, 25, imageData, imgWidth, imgHeight, commonData->fgcolor);
hasImageBackup = true;
// Clean PSRAM
free(b64);
@@ -410,7 +418,7 @@ public:
else{
// Show backup image (backup navigation map)
if (hasImageBackup) {
getdisplay().drawBitmap(0, 25, imageBackupData, imgBackupWidth, imgBackupHeight, commonData->fgcolor);
getdisplay().drawBitmap(0, 25, imageBackupData, imageBackupWidth, imageBackupHeight, commonData->fgcolor);
}
// Show info: Connection lost