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Cart_Reader.ino: Simplify fileBrowser pagination.

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Also, this resolves a warning about `count` being potentially used
uninitialised: when landing in the "Too many files" codepath.
With this simplification, the limit on the number of files is removed. It
is unclear whether that was intentional (maybe this was gating other
issues ?)?
This commit is contained in:
Vincent Pelletier 2022-10-22 08:18:46 +00:00
parent dc9ee3b01e
commit dc391541b4
1 changed files with 5 additions and 45 deletions
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50
Cart_Reader/Cart_Reader.ino
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@ -2972,6 +2972,7 @@ void fileBrowser(const __FlashStringHelper* browserTitle) {
char fileNames[7][FILENAME_LENGTH]; char fileNames[7][FILENAME_LENGTH];
int currFile; int currFile;
FsFile myDir; FsFile myDir;
div_t page_layout;
filebrowse = 1; filebrowse = 1;
@ -3000,32 +3001,15 @@ browserstart:
// Count files in directory // Count files in directory
while (myFile.openNext(&myDir, O_READ)) { while (myFile.openNext(&myDir, O_READ)) {
// Ignore if hidden if (!myFile.isHidden() && (myFile.isDir() || myFile.isFile())) {
if (myFile.isHidden()) {
}
// Indicate a directory.
else if (myFile.isDir()) {
currFile++;
}
// It's just a file
else if (myFile.isFile()) {
currFile++; currFile++;
} }
myFile.close(); myFile.close();
} }
myDir.close(); myDir.close();
// "Calculate number of needed pages" page_layout = div(currFile, 7);
if (currFile < 8) numPages = page_layout.quot + 1;
numPages = 1;
else if (currFile < 15)
numPages = 2;
else if (currFile < 22)
numPages = 3;
else if (currFile < 29)
numPages = 4;
else if (currFile < 36)
numPages = 5;
// Fill the array "answers" with 7 options to choose from in the file browser // Fill the array "answers" with 7 options to choose from in the file browser
char answers[7][20]; char answers[7][20];
@ -3033,31 +3017,7 @@ browserstart:
page: page:
// If there are less than 7 entries, set count to that number so no empty options appear // If there are less than 7 entries, set count to that number so no empty options appear
byte count; byte count = currPage == numPages ? page_layout.rem : 7;
if (currFile < 8)
count = currFile;
else if (currPage == 1)
count = 7;
else if (currFile < 15)
count = currFile - 7;
else if (currPage == 2)
count = 7;
else if (currFile < 22)
count = currFile - 14;
else if (currPage == 3)
count = 7;
else if (currFile < 29)
count = currFile - 21;
else {
display_Clear();
println_Msg(F("Too many files"));
display_Update();
println_Msg(F(""));
// Prints string out of the common strings array either with or without newline
print_STR(press_button_STR, 1);
display_Update();
wait();
}
// Open filepath directory // Open filepath directory
if (!myDir.open(filePath)) { if (!myDir.open(filePath)) {